/* Some styling assistance provided by Claude Sonnet 4 */

/* ===== GOOGLE FONTS IMPORT ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Crimson+Text:ital,wght@0,400;0,600;1,400&display=swap');

/* ===== BASE STYLES ===== */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #2d3748;
    background: #f7fafc;
    font-weight: 400;
    font-size: 16px;
    letter-spacing: -0.01em;
}

/* ===== CONTAINER SYSTEM ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ===== MAIN CONTENT WRAPPER ===== */
.main-content {
    min-height: calc(100vh - 200px);
}

/* ========================================
   SECTION 2: TYPOGRAPHY SYSTEM
   ======================================== */

/* ===== HEADING HIERARCHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Crimson Text', Georgia, 'Times New Roman', serif;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: #1a202c;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 2.75rem;
    font-weight: 600;
    line-height: 1.2;
}

h2 {
    font-size: 2.25rem;
    font-weight: 600;
}

h3 {
    font-size: 1.75rem;
    margin-top: 1.5rem;
    font-weight: 600;
}

h4 {
    font-size: 1.25rem;
    margin-top: 1rem;
    font-weight: 600;
}

/* ===== BODY TEXT ===== */
p {
    margin-bottom: 1rem;
    line-height: 1.7;
    font-weight: 400;
    color: #4a5568;
}

    p + p {
        margin-top: 1.25rem;
    }

/* ===== LISTS ===== */
ul, ol {
    margin: 1rem 0;
    padding-left: 2rem;
}

li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
    font-weight: 400;
    color: #4a5568;
}

/* ===== LINKS ===== */
a {
    color: #3182ce;
    text-decoration: none;
    transition: color 0.2s ease;
    font-weight: 500;
}

    a:hover {
        color: #2c5282;
        text-decoration: underline;
    }

/* ===== TEXT EMPHASIS ===== */
em {
    font-style: italic;
    color: #2d3748;
}

strong {
    font-weight: 600;
    color: #2d3748;
}

/* ===== BLOCKQUOTES ===== */
blockquote {
    font-family: 'Crimson Text', Georgia, serif;
    font-style: italic;
    font-size: 1.1rem;
    line-height: 1.6;
    color: #4a5568;
    border-left: 4px solid #3182ce;
    padding-left: 1.5rem;
    margin: 1.5rem 0;
}

/* ========================================
   SECTION 3: SITE LAYOUT & NAVIGATION
   ======================================== */

/* ===== SITE HEADER ===== */
.site-header {
    background: white;
    border-bottom: 1px solid #e2e8f0;
    padding: 1.25rem 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

    .site-header .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

/* ===== SITE TITLE ===== */
.site-title {
    font-family: 'Crimson Text', Georgia, serif;
    font-size: 1.75rem;
    font-weight: 600;
    color: #3182ce;
    text-decoration: none;
    letter-spacing: -0.01em;
}

    .site-title:hover {
        color: #2c5282;
        text-decoration: none;
    }

/* ===== NAVIGATION ===== */
.site-nav {
    display: flex;
    gap: 1.5rem;
}

    .site-nav a {
        font-family: 'Inter', sans-serif;
        color: #718096;
        font-weight: 500;
        font-size: 0.95rem;
        padding: 0.625rem 1rem;
        border-radius: 6px;
        transition: all 0.2s ease;
        letter-spacing: -0.01em;
    }

        .site-nav a:hover,
        .site-nav a.active {
            color: #3182ce;
            background: #ebf8ff;
            text-decoration: none;
        }



/* ===== BREADCRUMBS ===== */
.breadcrumb {
    margin-bottom: 2rem;
    font-size: 0.9rem;
    color: #718096;
}

    .breadcrumb a {
        color: #3182ce;
        text-decoration: none;
    }

        .breadcrumb a:hover {
            text-decoration: underline;
        }

/* ===== FOOTER ===== */
.site-footer {
    background: #2d3748;
    color: #e2e8f0;
    padding: 3rem 0 2rem 0;
    margin-top: 3rem;
    text-align: center;
}

.footer-title {
    font-family: 'Crimson Text', Georgia, serif;
    font-size: 1.75rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.footer-description {
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    color: #cbd5e0;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.footer-credits {
    font-family: 'Inter', sans-serif;
    margin-bottom: 0.5rem;
    color: #a0aec0;
    font-weight: 400;
    font-size: 0.9rem;
}

    .footer-credits:last-child {
        margin-bottom: 0;
    }

/* ===== PAGE HEADERS ===== */
.page-header {
    text-align: center;
    margin: 2rem 0 0 0;
    padding: 2rem 0;
}

.page-title {
    font-family: 'Crimson Text', Georgia, serif;
    font-size: 2.75rem;
    font-weight: 600;
    color: #1a202c;
    margin: 0 0 1rem 0;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.page-description {
    font-size: 1.1rem;
    color: #4a5568;
    margin: 0;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ========================================
   SECTION 4: COMPONENT SYSTEM
   ======================================== */

/* ===== BUTTONS ===== */
.button {
    background: #3182ce;
    color: white;
    border: none;
    padding: 0.75rem 1.25rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-block;
    font-family: 'Inter', sans-serif;
}

    .button:hover {
        background: #2c5282;
        transform: translateY(-1px);
        color: white;
        text-decoration: none;
    }

    .button:disabled {
        background: #a0aec0;
        cursor: not-allowed;
        transform: none;
    }

    .button.secondary {
        background: white;
        color: #3182ce;
        border: 1px solid #3182ce;
    }

        .button.secondary:hover {
            background: #ebf8ff;
            color: #3182ce;
        }

/* ===== NAV BUTTONS ===== */
.nav-button {
    background: #3182ce;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: inline-block;
    font-family: 'Inter', sans-serif;
}

    .nav-button:hover {
        background: #2c5282;
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        color: white;
        text-decoration: none;
    }

    .nav-button.secondary {
        background: white;
        color: #3182ce;
        border: 1px solid #3182ce;
    }

        .nav-button.secondary:hover {
            background: #ebf8ff;
            text-decoration: none;
        }

    .nav-button.disabled {
        background: #f7fafc;
        color: #a0aec0;
        cursor: not-allowed;
        border: 1px solid #e2e8f0;
    }

/* ===== BADGES ===== */
.meta-badge {
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: 'Inter', sans-serif;
}

    .meta-badge.players-badge {
        background: #dbeafe;
        color: #1e40af;
    }

    .meta-badge.type-badge {
        background: #f3e8ff;
        color: #6b21a8;
    }

    .meta-badge.property {
        background: #d1fae5;
        color: #065f46;
    }

/* Smaller badge variants */
.complexity-badge,
.players-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: 'Inter', sans-serif;
}

.complexity-badge {
    background: #fef3c7;
    color: #92400e;
}

.players-badge {
    background: #dbeafe;
    color: #1e40af;
}

/* ===== PROPERTY TAGS ===== */
.property-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    justify-content: center;
}

.property-tag {
    background: #e6fffa;
    color: #234e52;
    padding: 0.25rem 0.5rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 500;
    font-family: 'Inter', sans-serif;
}

/* ===== REFERENCE BADGES ===== */
.type-badge {
    background: #edf2f7;
    color: #4a5568;
    padding: 0.25rem 0.6rem;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    font-family: 'Inter', sans-serif;
}

    .type-badge.book {
        background: #fef3c7;
        color: #92400e;
    }

    .type-badge.paper {
        background: #e0e7ff;
        color: #3730a3;
    }

.year-badge {
    background: #f0f4f7;
    color: #4a5568;
    padding: 0.25rem 0.6rem;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 500;
    font-family: 'Inter', sans-serif;
}

/* ===== ALGORITHM LINKS ===== */
.algorithm-link {
    color: #3182ce;
    font-weight: 600;
    text-decoration: none;
    font-family: 'Inter', sans-serif;
    transition: color 0.2s ease;
}

    .algorithm-link:hover:not(.disabled) {
        color: #2c5282;
        text-decoration: none;
    }

    .algorithm-link.disabled {
        color: #a0aec0;
        cursor: not-allowed;
    }

/* ===== STEP NUMBERS ===== */
.step-number {
    background: #3182ce;
    color: white;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
}

/* ========================================
   SECTION 5: PAGE SECTIONS
   ======================================== */

/* ===== HERO SECTION ===== */
.hero-section {
    text-align: center;
    padding: 4rem 0 3rem 0;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    border-radius: 16px;
    margin-bottom: 3rem;
}

.hero-title {
    font-size: 3rem;
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #4a5568;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
    font-weight: 400;
}

/* ===== CONTENT BLOCKS ===== */
.content-block {
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

    .content-block:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    }

/* ===== ALGORITHMS SECTION ===== */

.section-description {
    text-align: center;
    color: #4a5568;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== ALGORITHM CAROUSEL CONTAINER ===== */
.algorithms-section {
    position: relative;
}

    .algorithms-section h2 {
        text-align: center;
        margin-bottom: 1rem;
    }

.algorithm-carousel {
    position: relative;
    overflow: hidden;
    margin: 2rem 0;
}

.algorithm-track {
    display: flex;
    transition: transform 0.3s ease;
    gap: 2rem;
}

/* ===== ALGORITHM CARDS IN CAROUSEL ===== */
.algorithm-card {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    min-width: 320px;
    max-width: 400px;
    flex-shrink: 0;
}

    .algorithm-card:hover:not(.coming-soon) {
        transform: translateY(-4px);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
        border-color: #cbd5e0;
    }

    .algorithm-card.coming-soon {
        opacity: 0.6;
        background: #f8f9fa;
    }

/* ===== CAROUSEL NAVIGATION ARROWS ===== */
.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    z-index: 10;
}

    .carousel-nav:hover {
        background: #f7fafc;
        border-color: #cbd5e0;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }

    .carousel-nav:active {
        transform: translateY(-50%) scale(0.95);
    }

    .carousel-nav.disabled {
        opacity: 0.5;
        cursor: not-allowed;
        pointer-events: none;
    }

.carousel-nav-prev {
    left: -24px;
}

.carousel-nav-next {
    right: -24px;
}

/* ===== CAROUSEL ARROW ICONS ===== */
.carousel-nav::before {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
}

.carousel-nav-prev::before {
    border-width: 8px 12px 8px 0;
    border-color: transparent #4a5568 transparent transparent;
    margin-right: 2px;
}

.carousel-nav-next::before {
    border-width: 8px 0 8px 12px;
    border-color: transparent transparent transparent #4a5568;
    margin-left: 2px;
}

.carousel-nav:hover::before {
    border-color: transparent #2d3748 transparent transparent;
}

.carousel-nav-next:hover::before {
    border-color: transparent transparent transparent #2d3748;
}

/* ===== CAROUSEL INDICATORS/DOTS ===== */
.carousel-indicators {
    display: flex;
    justify-content: center; 
    align-items: center; 
    gap: 8px;
    min-height: 20px; 
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #cbd5e0;
    cursor: pointer;
    transition: all 0.2s ease;
}

    .carousel-dot.active {
        background: #3182ce;
        transform: scale(1.25);
    }

    .carousel-dot:hover {
        background: #a0aec0;
    }

/* ===== RESPONSIVE CAROUSEL ADJUSTMENTS ===== */
@media (max-width: 1024px) {
    .algorithm-card {
        min-width: 280px;
        max-width: 350px;
    }

    .carousel-nav {
        width: 40px;
        height: 40px;
    }

    .carousel-nav-prev {
        left: -20px;
    }

    .carousel-nav-next {
        right: -20px;
    }
}

@media (max-width: 768px) {
    /* Switch to grid layout on mobile */
    .algorithm-carousel {
        overflow: visible;
    }

    .algorithm-track {
        display: grid;
        grid-template-columns: 1fr;
        gap: 1.5rem;
        transform: none !important;
    }

    .algorithm-card {
        min-width: auto;
        max-width: none;
    }

    .carousel-nav {
        display: none;
    }

    .carousel-indicators {
        display: none;
    }
}

/* ===== FALLBACK GRID LAYOUT (when carousel is disabled) ===== */
.algorithm-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
    align-items: stretch;
}

    .algorithm-grid .algorithm-card {
        min-width: auto;
        max-width: none;
    }

/* ===== CAROUSEL SMOOTH SCROLLING ===== */
.algorithm-carousel.smooth-scroll {
    scroll-behavior: smooth;
}

/* ===== CAROUSEL FADE EFFECT (OPTIONAL) ===== */
.algorithm-carousel.fade-edges::before,
.algorithm-carousel.fade-edges::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 30px;
    pointer-events: none;
    z-index: 5;
}

.algorithm-carousel.fade-edges::before {
    left: 0;
    background: linear-gradient(to right, #f7fafc, transparent);
}

.algorithm-carousel.fade-edges::after {
    right: 0;
    background: linear-gradient(to left, #f7fafc, transparent);
}

/* ===== ALGORITHM CARD SIZING CONSTRAINTS ===== */
.algorithm-card {
    height: auto;
    min-height: 300px;
}

.algorithm-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.algorithm-properties {
    margin-top: auto;
}

.algorithm-footer {
    margin-top: auto;
}

/* ===== ALGORITHM CARDS ===== */
.algorithm-card {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    height: 100%;
}

    .algorithm-card:hover:not(.coming-soon) {
        transform: translateY(-4px);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
        border-color: #cbd5e0;
    }

    .algorithm-card.coming-soon {
        opacity: 0.6;
        background: #f8f9fa;
    }

.algorithm-header {
    text-align: center;
    margin: 1rem 0 2rem 0;
}

.algorithm-meta {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.algorithm-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.algorithm-description {
    color: #4a5568;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.algorithm-properties h4 {
    font-size: 1rem;
    margin: 0 0 0.75rem 0;
    color: #2d3748;
    font-family: 'Inter', sans-serif;
}

.algorithm-footer {
    padding: 1rem 1.5rem;
    background: #f8f9fa;
    border-top: 1px solid #e2e8f0;
    margin-top: auto;
}

/* ===== ALGORITHM HEADER CARD ===== */
.algorithm-header-card {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

    .algorithm-header-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    }

.algorithm-header-content {
    text-align: center;
}

.algorithm-header-card .algorithm-title {
    font-family: 'Crimson Text', Georgia, serif;
    font-size: 2.5rem;
    font-weight: 600;
    color: #1a202c;
    margin: 0 0 0.5rem 0;
    line-height: 1.2;
}

.algorithm-header-card .algorithm-subtitle {
    font-size: 1.1rem;
    color: #4a5568;
    margin: 0 0 1.5rem 0;
    font-style: italic;
    line-height: 1.5;
}

/* ===== ALGORITHM PAGE ELEMENTS ===== */
.algorithm-page {
    max-width: 800px;
    margin: 0 auto;
}

.algorithm-subtitle {
    font-size: 1.1rem;
    color: #4a5568;
    margin: 1rem 0 2rem 0;
    font-style: italic;
}

.algorithm-meta-bar {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ===== PROCEDURE STEPS ===== */
.procedure-steps {
    margin-top: 2rem;
}

.step-list {
    margin-top: 1.5rem;
}

.step {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    align-items: flex-start;
}

.step-content {
    flex: 1;
    padding-top: 0.25rem;
}

/* ===== PROPERTIES GRID ===== */
.properties-grid {
    display: block;
    margin-top: 1.5rem;
}

.property-card {
    background: #f8f9fa;
    padding-left: 1rem;
    margin: 1.5rem;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

    .property-card h4 {
        margin: 1rem 0 0.75rem 0;
        color: #2d3748;
        font-size: 1.1rem;
    }

    .property-card p {
        margin: 1rem 0 1rem 0;
        color: #4a5568;
    }

/* ===== PROOF SKETCHES ===== */
.proof-sketch {
    background: #edf2f7;
    border-radius: 6px;
    font-size: 0.9rem;
    color: #4a5568;
    border: 1px solid #e2e8f0;
    overflow: hidden;
    transition: all 0.3s ease;
    margin: 1rem 0;
}

.proof-sketch-header {
    background: #e2e8f0;
    padding: 1rem;
    cursor: pointer;
    user-select: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.2s ease;
    border-bottom: 1px solid #cbd5e0;
}

    .proof-sketch-header:hover {
        background: #cbd5e0;
    }

.proof-sketch-content {
    padding: 1rem;
    display: none;
}

.proof-sketch.expanded .proof-sketch-content {
    display: block;
}

/* ===== REFERENCES SECTION ===== */
.references-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
    align-items: stretch;
}

.reference-card {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
}

    .reference-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
        border-color: #cbd5e0;
    }

.reference-header {
    padding: 1.5rem 1.5rem 0 1.5rem;
}

.reference-title {
    font-family: 'Crimson Text', Georgia, serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: #1a202c;
    margin: 0 0 0.75rem 0;
    line-height: 1.3;
}

.reference-meta {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
}

.reference-content {
    padding: 0 1.5rem 1.5rem;
    flex: 1;
}

.reference-authors {
    font-weight: 600;
    color: #2d3748;
    margin: 0 0 0.5rem 0;
}

.reference-publication {
    color: #4a5568;
    font-style: italic;
    margin: 0;
}

.reference-footer {
    padding: 1rem 1.5rem;
    background: #f8f9fa;
    border-top: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.citation-note {
    font-size: 0.85rem;
    color: #718096;
    cursor: pointer;
    transition: color 0.2s ease;
}

    .citation-note:hover {
        color: #3182ce;
    }

/* ===== GLOSSARY SECTION ===== */
.terms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.term-card {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 1.5rem;
    transition: all 0.2s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

    .term-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        border-color: #cbd5e0;
    }

.term-name {
    font-family: 'Crimson Text', Georgia, serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: #1a202c;
    margin: 0 0 0.75rem 0;
    line-height: 1.3;
}

.term-definition {
    color: #4a5568;
    line-height: 1.6;
    margin: 0;
    font-size: 0.95rem;
}

/* ========================================
   SECTION 6: INTERACTIVE DEMO STYLES
   ======================================== */

/* ===== DEMO SECTION (HOMEPAGE) ===== */
.demo-section {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 2px solid #3182ce;
}

.demo-header {
    text-align: center;
    margin-bottom: 2rem;
}

.demo-subtitle {
    font-size: 1.1rem;
    color: #4a5568;
    margin: 0.5rem 0 2rem 0;
    font-style: italic;
    line-height: 1.6;
}

.demo-features {
    margin-bottom: 2rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.feature-item {
    text-align: center;
    padding: 1rem;
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    display: block;
}

.feature-item h4 {
    font-size: 1rem;
    margin: 0.5rem 0;
    color: #2d3748;
    font-family: 'Inter', sans-serif;
}

.feature-item p {
    font-size: 0.9rem;
    color: #4a5568;
    margin: 0;
    line-height: 1.5;
}

/* ===== MAIN DEMO CONTAINER ===== */
.unified-demo-container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
    overflow: hidden;
    margin-top: 2rem;
}

.demo-loading {
    padding: 3rem;
    text-align: center;
    color: #718096;
    font-style: italic;
}

/* ===== ALGORITHM SELECTOR SECTION ===== */
.algorithm-selector-section {
    background: #f8f9fa;
    padding: 1.5rem;
    border-bottom: 1px solid #e2e8f0;
}

.algorithm-selector {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.algorithm-info {
    flex: 1;
    min-width: 300px;
}

.algorithm-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 0 0.5rem 0;
    color: #2d3748;
}

.algorithm-description {
    color: #4a5568;
    margin: 0 0 0.75rem 0;
    line-height: 1.5;
}

.selector-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.algorithm-dropdown {
    padding: 0.5rem 1rem;
    border: 1px solid #d2d6dc;
    border-radius: 6px;
    background: white;
    font-size: 0.9rem;
    min-width: 200px;
    cursor: pointer;
}

.mode-toggle {
    display: flex;
    border: 1px solid #d2d6dc;
    border-radius: 6px;
    overflow: hidden;
    background: white;
}

.mode-button {
    padding: 0.5rem 1rem;
    border: none;
    background: white;
    color: #4a5568;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

    .mode-button.active {
        background: #3182ce;
        color: white;
    }

    .mode-button:hover:not(.active) {
        background: #f7fafc;
    }

/* ===== MAIN CONTENT AREA ===== */
.demo-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    min-height: 600px;
}

/* ===== VISUALIZATION PANEL ===== */
.visualization-panel {
    padding: 1.5rem;
    border-right: 1px solid #e2e8f0;
}

.step-indicator {
    text-align: center;
    font-weight: 600;
    margin: 0 0 1rem 0;
    font-size: 1rem;
    color: #3182ce;
}

.instructions {
    background: #ebf8ff;
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid #3182ce;
    margin: 0 0 1.5rem 0;
    font-size: 0.9rem;
}

.game-area {
    position: relative;
    width: 100%;
    height: 400px;
    border: 3px solid #2d3748;
    border-radius: 8px;
    background: #f5f5f0;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.background-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* ===== SVG GAME ELEMENTS ===== */
.cut-line {
    stroke: #dc3545;
    stroke-width: 4;
    stroke-dasharray: 10,5;
    z-index: 2;
}

.piece-overlay {
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 3;
}

    .piece-overlay.selected {
        fill-opacity: 0.5 !important;
        stroke-width: 6 !important;
    }

    .piece-overlay:hover {
        fill-opacity: 0.3 !important;
    }

/* ===== CONTROLS PANEL ===== */
.controls-panel {
    background: #f8f9fa;
    padding: 1.5rem;
    overflow-y: auto;
    border-left: 1px solid #e2e8f0;
}

.control-section {
    margin-bottom: 1.5rem;
}

    .control-section h3 {
        font-size: 1rem;
        font-weight: 600;
        margin: 0 0 1rem 0;
        color: #2d3748;
    }

/* ===== PLAYER CONTROLS ===== */
.player-grid {
    display: grid;
    gap: 1rem;
    margin: 1rem 0;
}

    .player-grid.two-player {
        grid-template-columns: 1fr 1fr;
    }

    .player-grid.three-player {
        grid-template-columns: 1fr;
    }

.player-section {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 1rem;
}

.player-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.player-name {
    font-weight: 600;
    color: #2d3748;
    margin: 0;
}

.player-total {
    font-size: 0.85rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    background: #f0fff4;
    color: #38a169;
    font-weight: 600;
}

    .player-total.invalid {
        color: #e53e3e;
        background: #fff5f5;
    }

/* ===== SLIDERS ===== */
.slider-container {
    margin: 1rem 0;
}

    .slider-container label {
        display: block;
        font-weight: 500;
        margin-bottom: 0.5rem;
        color: #4a5568;
        font-size: 0.9rem;
    }

.slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: #e2e8f0;
    outline: none;
    appearance: none;
    margin: 0.5rem 0;
    cursor: pointer;
}

    .slider::-webkit-slider-thumb {
        appearance: none;
        width: 20px;
        height: 20px;
        border-radius: 50%;
        background: #3182ce;
        cursor: pointer;
        box-shadow: 0 2px 4px rgba(0,0,0,0.2);
        transition: all 0.2s ease;
    }

        .slider::-webkit-slider-thumb:hover {
            background: #2c5282;
            transform: scale(1.1);
        }

    .slider::-moz-range-thumb {
        width: 20px;
        height: 20px;
        border-radius: 50%;
        background: #3182ce;
        cursor: pointer;
        border: none;
        box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    }

.slider-value {
    text-align: center;
    font-size: 0.9rem;
    color: #4a5568;
    margin-top: 0.25rem;
    font-weight: 500;
}

/* ===== CONTROL BUTTONS ===== */
.control-buttons {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

    .control-buttons .button {
        flex: 1;
        min-width: 80px;
        text-align: center;
    }

/* ===== RESULTS SECTION ===== */
.results-section {
    margin-top: 1rem;
    padding: 1rem;
    background: #f0fff4;
    border-radius: 8px;
    border-left: 4px solid #38a169;
    display: none;
}

    .results-section.visible {
        display: block;
    }

    .results-section h3 {
        margin: 0 0 1rem 0;
        color: #2d3748;
        font-size: 1.1rem;
    }

.results-content {
    font-size: 0.9rem;
    line-height: 1.5;
}

/* ===== COMPARISON MODE ===== */
.comparison-mode {
    display: none;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    padding: 1.5rem;
    min-height: 600px;
}

    .comparison-mode.active {
        display: grid;
    }

.comparison-panel {
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
    background: white;
}

.comparison-header {
    background: #f8f9fa;
    padding: 1rem;
    border-bottom: 1px solid #e2e8f0;
    font-weight: 600;
    text-align: center;
    color: #2d3748;
}

.comparison-content {
    padding: 1rem;
    height: 500px;
    overflow-y: auto;
}

/* ===== COLOR LEGEND ===== */
.color-legend {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 10px;
    margin: 15px 0;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.color-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #4a5568;
}

.color-swatch {
    width: 20px;
    height: 20px;
    border-radius: 3px;
    border: 1px solid #ccc;
    flex-shrink: 0;
}

/* ===== SIMULATION CONTAINER (Legacy Support) ===== */
.simulation-container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    border: 1px solid #e2e8f0;
}

.simulation-title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a202c;
}

.geometric-container {
    background: #f8f9fa;
    border: 3px solid #2d3748;
    border-radius: 8px;
    height: 400px;
    margin: 20px 0;
    position: relative;
    overflow: hidden;
    cursor: crosshair;
}

/* ===== NOTIFICATIONS ===== */
.success {
    background: #f0fff4;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid #38a169;
    margin: 20px 0;
    display: none;
}

.warning {
    background: #fffbeb;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid #f59e0b;
    margin: 20px 0;
    display: none;
}

/* ========================================
   SECTION 8: RESPONSIVE DESIGN
   ======================================== */

/* ===== LARGE TABLETS & SMALL DESKTOPS (1024px and down) ===== */
@media (max-width: 1024px) {
    /* Demo content stacking */
    .demo-content {
        grid-template-columns: 1fr;
    }

    .controls-panel {
        border-right: none;
        border-top: 1px solid #e2e8f0;
    }

    .visualization-panel {
        border-right: none;
        border-bottom: 1px solid #e2e8f0;
    }

    /* Player grids */
    .player-grid.two-player {
        grid-template-columns: 1fr;
    }

    /* Comparison mode */
    .comparison-mode {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .comparison-panel {
        margin-bottom: 1rem;
    }
}

/* ===== TABLETS (768px and down) ===== */
@media (max-width: 768px) {
    /* Container adjustments */
    .container {
        padding: 0 1rem;
    }

    /* Header responsive */
    .site-header .container {
        flex-direction: column;
        gap: 1rem;
    }

    .site-nav {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .site-title {
        font-size: 1.5rem;
    }

    /* Typography scaling */
    h1 {
        font-size: 2.25rem;
    }

    h2 {
        font-size: 1.875rem;
    }

    h3 {
        font-size: 1.5rem;
    }

    .page-title {
        font-size: 2.25rem;
    }

    .page-description {
        font-size: 1rem;
    }

    /* Main content */
    .main-content {
        padding: 2rem 0;
    }

    /* Hero section */
    .hero-section {
        padding: 3rem 0 2rem 0;
        margin-bottom: 2rem;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    /* Content blocks */
    .content-block {
        padding: 2rem;
    }

    /* Algorithm grids */
    .algorithm-grid {
        grid-template-columns: 1fr;
    }

    .properties-grid {
        grid-template-columns: 1fr;
    }

    /* Algorithm navigation */
    .algorithm-navigation {
        flex-direction: column;
    }

    /* Procedure steps */
    .step {
        flex-direction: column;
        text-align: center;
        gap: 0.75rem;
    }

    .algorithm-meta-bar {
        gap: 0.5rem;
    }

    /* Demo specific responsive */
    .algorithm-selector {
        flex-direction: column;
        align-items: stretch;
    }

    .algorithm-info {
        min-width: auto;
        text-align: center;
    }

    .selector-controls {
        justify-content: center;
    }

    .demo-header {
        padding: 1.5rem;
    }

    .demo-title {
        font-size: 1.5rem;
    }

    .game-area,
    .geometric-container {
        height: 300px;
    }

    /* Feature grid */
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    /* Color legend */
    .color-legend {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
        gap: 8px;
    }

    /* Control buttons */
    .control-buttons {
        flex-direction: column;
    }

        .control-buttons .button {
            width: 100%;
        }

    /* References */
    .references-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .reference-footer {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    /* Terms grid */
    .terms-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .term-card {
        padding: 1.25rem;
    }

    .term-name {
        font-size: 1.125rem;
    }

    /* Page header */
    .page-header {
        margin: 1rem 0 2rem 0;
    }

    /* Algorithm header cards */
    .algorithm-header-card {
        padding: 1.5rem;
        margin: 1rem 0;
    }

        .algorithm-header-card .algorithm-title {
            font-size: 2rem;
        }

        .algorithm-header-card .algorithm-subtitle {
            font-size: 1rem;
        }

    .algorithm-meta {
        gap: 0.5rem;
    }

    .meta-badge {
        padding: 0.3rem 0.8rem;
        font-size: 0.8rem;
    }

    /* Stats */
    .algorithm-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
}

/* ===== MOBILE PHONES (480px and down) ===== */
@media (max-width: 480px) {
    /* Navigation */
    .site-nav {
        flex-direction: column;
        width: 100%;
    }

        .site-nav a {
            text-align: center;
        }

    /* Typography */
    body {
        font-size: 15px;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.375rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    /* Content blocks */
    .content-block {
        padding: 1.5rem;
    }

    /* Demo specific */
    .demo-header {
        padding: 1rem;
    }

    .demo-title {
        font-size: 1.25rem;
    }

    .demo-subtitle {
        font-size: 1rem;
    }

    .algorithm-selector-section {
        padding: 1rem;
    }

    .visualization-panel,
    .controls-panel {
        padding: 1rem;
    }

    .game-area,
    .geometric-container {
        height: 250px;
    }

    /* Mode toggle stacking */
    .mode-toggle {
        flex-direction: column;
    }

    .mode-button {
        border-radius: 0;
    }

        .mode-button:first-child {
            border-radius: 6px 6px 0 0;
        }

        .mode-button:last-child {
            border-radius: 0 0 6px 6px;
        }

    /* Algorithm dropdown */
    .algorithm-dropdown {
        min-width: auto;
        width: 100%;
    }

    /* Player sections */
    .player-section {
        padding: 0.75rem;
    }

    .player-header {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    /* Slider containers */
    .slider-container {
        margin: 0.75rem 0;
    }

        .slider-container label {
            font-size: 0.85rem;
        }

    /* Color legend mobile */
    .color-legend {
        grid-template-columns: repeat(2, 1fr);
        padding: 10px;
        gap: 6px;
    }

    .color-item {
        font-size: 12px;
        gap: 6px;
    }

    .color-swatch {
        width: 16px;
        height: 16px;
    }

    /* Comparison mode mobile */
    .comparison-mode {
        padding: 1rem;
    }

    .comparison-header {
        padding: 0.75rem;
        font-size: 0.9rem;
    }

    .comparison-content {
        padding: 0.75rem;
        height: 400px;
    }

    /* Feature items */
    .feature-item {
        padding: 0.75rem;
    }

    .feature-icon {
        font-size: 1.5rem;
    }

    .feature-item h4 {
        font-size: 0.9rem;
    }

    .feature-item p {
        font-size: 0.85rem;
    }
}

/* ===== VERY SMALL DEVICES (360px and down) ===== */
@media (max-width: 360px) {
    .container {
        padding: 0 0.75rem;
    }

    .content-block {
        padding: 1rem;
    }

    .hero-section {
        padding: 2rem 0 1.5rem 0;
    }

    .demo-header {
        padding: 0.75rem;
    }

    .visualization-panel,
    .controls-panel {
        padding: 0.75rem;
    }

    .game-area,
    .geometric-container {
        height: 200px;
    }

    .color-legend {
        grid-template-columns: 1fr;
    }

    .algorithm-selector {
        gap: 0.75rem;
    }

    .selector-controls {
        flex-direction: column;
        gap: 0.75rem;
    }

    .mode-toggle {
        width: 100%;
    }

    .algorithm-dropdown {
        width: 100%;
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    .site-header,
    .site-nav,
    .site-footer,
    .demo-section,
    .unified-demo-container {
        display: none !important;
    }

    .content-block {
        box-shadow: none;
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }

    body {
        background: white;
        color: black;
    }

    a {
        color: black;
        text-decoration: underline;
    }
}

/* ========================================
   CAROUSEL FIXES - ADD TO YOUR CSS
   ======================================== */

/* ===== OVERRIDE EXISTING CAROUSEL STYLES ===== */
.algorithm-carousel {
    position: relative;
    overflow: hidden;
    margin: 2rem 0;
    width: 100%;
}

.algorithm-track {
    display: flex;
    transition: transform 0.3s ease;
    gap: 2rem;
    width: max-content; /* Important: prevents stretching */
}

/* ===== FIXED ALGORITHM CARD DIMENSIONS ===== */
.algorithm-card {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    /* FIXED DIMENSIONS */
    width: 350px;
    min-width: 350px;
    max-width: 350px;
    height: 400px;
    min-height: 400px;
    max-height: 400px;
    flex-shrink: 0;
}

    .algorithm-card:hover:not(.coming-soon) {
        transform: translateY(-4px);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
        border-color: #cbd5e0;
    }

    .algorithm-card.coming-soon {
        opacity: 0.6;
        background: #f8f9fa;
    }

/* ===== ALGORITHM CARD INTERNAL LAYOUT ===== */
.algorithm-header {
    padding: 1.5rem 1.5rem 0 1.5rem;
    flex-shrink: 0;
}

.algorithm-title {
    font-family: 'Crimson Text', Georgia, serif;
    font-size: 1.4rem;
    font-weight: 600;
    color: #1a202c;
    margin: 0 0 0.75rem 0;
    line-height: 1.3;
    text-align: center;
}

.algorithm-meta {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.algorithm-content {
    padding: 0 1.5rem 1.5rem 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.algorithm-description {
    color: #4a5568;
    margin-bottom: 1rem;
    line-height: 1.5;
    text-align: center;
    font-size: 0.95rem;
}

.algorithm-properties {
    margin-top: auto;
    flex-shrink: 0;
    text-align: center;
}

    .algorithm-properties h4 {
        font-size: 0.95rem;
        margin: 0 0 0.5rem 0;
        color: #2d3748;
        font-family: 'Inter', sans-serif;
        font-weight: 600;
    }

.property-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.property-tag {
    background: #e6fffa;
    color: #234e52;
    padding: 0.2rem 0.4rem;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 500;
    font-family: 'Inter', sans-serif;
}

.algorithm-footer {
    padding: 1rem 1.5rem;
    background: #f8f9fa;
    border-top: 1px solid #e2e8f0;
    margin-top: auto;
    flex-shrink: 0;
    text-align: center;
}

.algorithm-link {
    color: #3182ce;
    font-weight: 600;
    text-decoration: none;
    font-family: 'Inter', sans-serif;
    transition: color 0.2s ease;
    font-size: 0.9rem;
}

    .algorithm-link:hover:not(.disabled) {
        color: #2c5282;
        text-decoration: none;
    }

/* ===== CAROUSEL CONTROLS ===== */
.carousel-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.carousel-btn {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    font-size: 1.2rem;
    color: #4a5568;
    font-weight: bold;
}

    .carousel-btn:hover {
        background: #f7fafc;
        border-color: #cbd5e0;
        color: #2d3748;
        transform: scale(1.05);
    }

    .carousel-btn:disabled {
        opacity: 0.5;
        cursor: not-allowed;
        transform: none;
    }

.carousel-indicators {
    display: flex;
    gap: 8px;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #cbd5e0;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

    .carousel-dot.active {
        background: #3182ce;
        transform: scale(1.25);
    }

    .carousel-dot:hover {
        background: #a0aec0;
    }

/* ===== RESPONSIVE CAROUSEL ADJUSTMENTS ===== */
@media (max-width: 1200px) {
    .algorithm-card {
        width: 320px;
        min-width: 320px;
        max-width: 320px;
    }
}

@media (max-width: 768px) {
    /* Switch to vertical stacking on mobile */
    .algorithm-carousel {
        overflow: visible;
    }

    .algorithm-track {
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
        transform: none !important;
        width: 100%;
    }

    .algorithm-card {
        width: 100%;
        min-width: auto;
        max-width: none;
        height: auto;
        min-height: auto;
        max-height: none;
    }

    .carousel-controls {
        display: none;
    }
}

.action-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin: 20px 0;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
}

.start-btn {
    background: linear-gradient(135deg, #4caf50, #45a049);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 160px;
}

    .start-btn:hover:not(:disabled) {
        background: linear-gradient(135deg, #45a049, #3d8b40);
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
    }

    .start-btn:disabled {
        background: #cccccc;
        cursor: not-allowed;
        transform: none;
        box-shadow: none;
    }

.reset-btn {
    background: linear-gradient(135deg, #ff7043, #f4511e);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 100px;
}

    .reset-btn:hover:not(:disabled) {
        background: linear-gradient(135deg, #f4511e, #e64a19);
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(255, 112, 67, 0.3);
    }

    .reset-btn:disabled {
        background: #cccccc;
        cursor: not-allowed;
        transform: none;
        box-shadow: none;
    }

/* Loading state for start button */
.start-btn.loading {
    position: relative;
    color: transparent;
}

    .start-btn.loading::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 20px;
        height: 20px;
        margin: -10px 0 0 -10px;
        border: 2px solid transparent;
        border-top: 2px solid white;
        border-radius: 50%;
        animation: spin 1s linear infinite;
    }

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Responsive design */
@media (max-width: 768px) {
    .action-buttons {
        flex-direction: column;
        align-items: center;
    }

    .start-btn, .reset-btn {
        width: 100%;
        max-width: 200px;
    }
}

.algorithm-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 3rem 0 2rem 0;
    padding: 1.5rem 0;
    border-top: 1px solid #e2e8f0;
    gap: 1rem;
}

    /* Handle cases where there's only one button */
    .algorithm-navigation:has(.nav-button:only-child) {
        justify-content: flex-end;
    }

    /* Alternative approach if :has() isn't supported */
    .algorithm-navigation .nav-button:only-child {
        margin-left: auto;
    }

/* Responsive adjustments */
@media (max-width: 768px) {
    .algorithm-navigation {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

        .algorithm-navigation .nav-button {
            width: 100%;
            max-width: 300px;
        }

            /* Reset the margin auto for mobile */
            .algorithm-navigation .nav-button:only-child {
                margin-left: 0;
            }
}

/* Query Styling */

.query-panel {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.query-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.query-stats {
    display: flex;
    gap: 1rem;
    justify-content: space-around;
}

.query-stat {
    text-align: center;
    padding: 0.5rem;
    background: white;
    border-radius: 6px;
    border: 1px solid #e9ecef;
}

.query-stat.total {
    background: #e3f2fd;
    border-color: #2196f3;
}

.query-count {
    display: block;
    font-size: 1.5rem;
    font-weight: bold;
    color: #2196f3;
}

.query-label {
    font-size: 0.8rem;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

@keyframes highlight {
    0% { background-color: #fff3cd; }
    100% { background-color: #f8f9fa; }
}

.query-info-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    max-width: 500px;
    margin: 1rem;
}

/* ===== CAROUSEL SECTIONS ===== */
.carousel-section {
    margin-bottom: 3rem;
    background: white;
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.carousel-section:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.carousel-section-header {
    text-align: center;
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.carousel-section-header h2 {
    font-family: 'Crimson Text', Georgia, serif;
    font-size: 2rem;
    font-weight: 600;
    color: #1a202c;
    margin: 0 0 0.75rem 0;
    line-height: 1.2;
}

.carousel-section-description {
    font-size: 1.1rem;
    color: #4a5568;
    margin: 0;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Update carousel spacing within sections */
.carousel-section .algorithm-carousel {
    margin: 1.5rem 0 0 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .carousel-section {
        padding: 1.5rem;
        margin: 2rem 0;
    }

    .carousel-section-header h2 {
        font-size: 1.75rem;
    }

    .carousel-section-description {
        font-size: 1rem;
    }
}

/* ===== QUESTION BLOCKS - UPDATED FOR 2-COLUMN GRID ===== */
.theory-questions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-gap: 1.5rem;
    margin: 2rem 0;
}

.question-block {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 0;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    position: relative;
    overflow: hidden;
}

.question-block:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-color: #cbd5e0;
}

.question-block h3 {
    font-family: 'Crimson Text', Georgia, serif;
    font-size: 1.25rem; /* Reduced from 1.5rem */
    font-weight: 600;
    color: #2d3748;
    margin: 0 0 0.75rem 0; /* Reduced margin */
    line-height: 1.3;
    display: flex;
    align-items: center;
}

.question-block p {
    color: #4a5568;
    margin: 0 0 1rem 0; /* Reduced margin */
    line-height: 1.6;
    font-size: 0.95rem; /* Slightly smaller text */
}

/* ===== QUESTION LINKS - ADJUSTED FOR SMALLER CARDS ===== */
.question-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem; /* Reduced gap */
    margin-top: 1rem; /* Reduced margin */
    padding-top: 0.75rem; /* Reduced padding */
    border-top: 1px solid #f1f5f9;
}

.question-links a {
    background: linear-gradient(135deg, #ebf8ff, #dbeafe);
    color: #2c5282;
    padding: 0.5rem 1rem; /* Reduced padding */
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.85rem; /* Reduced font size */
    transition: all 0.2s ease;
    border: 1px solid #bee3f8;
    font-family: 'Inter', sans-serif;
    letter-spacing: -0.01em;
}

.question-links a.coming-soon {
    opacity: 0.6;
    background: #f8f9fa;
}

.question-links a:hover {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    color: #1e40af;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(49, 130, 206, 0.2);
    text-decoration: none;
    border-color: #93c5fd;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .theory-questions {
        grid-template-columns: 1fr; /* Single column on mobile */
        gap: 1rem;
    }

    .question-block {
        padding: 1.25rem; /* Further reduced padding on mobile */
    }

    .question-block h3 {
        font-size: 1.125rem; /* Even smaller on mobile */
    }

    .question-block p {
        font-size: 0.9rem;
    }

    .question-links {
        gap: 0.5rem;
        margin-top: 0.75rem;
        padding-top: 0.5rem;
    }

    .question-links a {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .question-links {
        flex-direction: column; /* Stack links vertically on very small screens */
    }

    .question-links a {
        text-align: center;
        width: 100%;
    }
}

/* ===== THEORY INTRODUCTION SECTION ===== */
.theory-intro {
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    border-radius: 16px;
    padding: 2.5rem;
    margin: 2rem 0 3rem 0;
    text-align: center;
    border: 1px solid #e2e8f0;
}

.theory-intro h2 {
    font-family: 'Crimson Text', Georgia, serif;
    font-size: 2rem;
    font-weight: 600;
    color: #1a202c;
    margin: 0 0 1rem 0;
    line-height: 1.2;
}

.theory-intro p {
    color: #4a5568;
    font-size: 1.1rem;
    line-height: 1.6;
    margin: 0;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .theory-questions h2 {
        font-size: 1.875rem;
        margin-bottom: 1.5rem;
    }

    .question-block {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .question-block h3 {
        font-size: 1.25rem;
        gap: 0.5rem;
    }

    .question-block h3::before {
        font-size: 1.5rem;
    }

    .question-block p {
        font-size: 0.95rem;
    }

    .question-links {
        gap: 0.5rem;
        margin-top: 1rem;
        padding-top: 0.75rem;
    }

    .question-links a {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }

    .theory-intro {
        padding: 2rem;
        margin: 1.5rem 0 2rem 0;
    }

    .theory-intro h2 {
        font-size: 1.75rem;
    }

    .theory-intro p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .question-block {
        padding: 1.25rem;
    }

    .question-block h3 {
        font-size: 1.125rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .question-block h3::before {
        font-size: 1.25rem;
    }

    .question-links {
        flex-direction: column;
    }

    .question-links a {
        text-align: center;
        width: 100%;
    }

    .theory-intro {
        padding: 1.5rem;
    }

    .theory-intro h2 {
        font-size: 1.5rem;
    }
}

/* ===== ACCESSIBILITY ENHANCEMENTS ===== */
.question-block:focus-within {
    outline: 2px solid #3182ce;
    outline-offset: 2px;
}

.question-links a:focus {
    outline: 2px solid #3182ce;
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
}

/* ===== PRINT STYLES ===== */
@media print {
    .question-block {
        box-shadow: none;
        border: 1px solid #ccc;
        page-break-inside: avoid;
        margin-bottom: 1rem;
    }

    .question-block::before {
        display: none;
    }

    .question-links a {
        background: none;
        border: 1px solid #ccc;
        color: #000;
    }
}

/* ========================================
   ENHANCED FLOWCHART SYSTEM - COMPLETE
   ======================================== */

/* Main Container */
.algorithm-flowchart-enhanced {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    border: 1px solid #e2e8f0;
    position: relative;
    overflow: visible;
    transition: all 0.3s ease;
}

.algorithm-flowchart-enhanced:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

/* Header Section - Matches your page headers */
.flowchart-header-enhanced {
    text-align: center;
    margin-bottom: 2rem;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 1.5rem;
}

.flowchart-title-enhanced {
    font-family: 'Crimson Text', Georgia, serif;
    font-size: 2rem;
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 0.5rem;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.complexity-overview-enhanced {
    display: inline-flex;
    align-items: center;
    background: #3182ce;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    gap: 0.5rem;
    margin-top: 0.5rem;
    transition: all 0.2s ease;
    letter-spacing: -0.01em;
}

.complexity-overview-enhanced:hover {
    background: #2c5282;
}

.complexity-icon {
    width: 14px;
    height: 14px;
    background: rgba(255,255,255,0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 600;
}

/* Layout Container */
.flowchart-content-enhanced {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.flowchart-steps-enhanced {
    flex: 1;
    min-width: 0;
}

/* Floating Sidebar - Matches your site navigation styling */
.complexity-sidebar-enhanced {
    width: 240px;
    background: #f8f9fa;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 120px;
    margin-left: 2rem;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.sidebar-title-enhanced {
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 1rem;
    text-align: center;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.query-metric-enhanced {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0.75rem 0;
    padding: 0.75rem;
    background: white;
    border-radius: 6px;
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.query-metric-enhanced:hover {
    transform: translateX(2px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.query-metric-enhanced.cut-metric {
    border-left-color: #e53e3e;
}

.query-metric-enhanced.eval-metric {
    border-left-color: #805ad5;
}

.metric-label-enhanced {
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    color: #4a5568;
    font-weight: 400;
}

.metric-value-enhanced {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    color: #2d3748;
    font-size: 0.875rem;
    font-variant-numeric: tabular-nums;
    min-width: 2ch;
    text-align: right;
    transition: all 0.3s ease;
}

.total-complexity-enhanced {
    border-top: 2px solid #e2e8f0;
    padding: 1rem;
    margin-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: relative;
}

.total-label-enhanced {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    color: #1a202c;
    font-size: 0.9rem;
}

.total-value-enhanced {
    font-family: 'Inter', sans-serif;
    font-size: 1.125rem;
    font-weight: 700;
    color: #e53e3e;
    font-variant-numeric: tabular-nums;
    position: relative;
    display: inline-block;
}

.optimality-indicator-enhanced {
    text-align: center;
    margin-top: 0.75rem;
    padding: 0.5rem;
    border-radius: 6px;
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.025em;
}

.optimality-indicator-enhanced.optimal {
    background: #f0fff4;
    color: #276749;
    border: 1px solid #9ae6b4;
}

.optimality-indicator-enhanced.suboptimal {
    background: #fffbeb;
    color: #744210;
    border: 1px solid #fbd38d;
}

.optimality-indicator-enhanced.unknown {
    background: #f7fafc;
    color: #4a5568;
    border: 1px solid #cbd5e0;
}

/* Step Nodes - Matches your algorithm card styling */
.flow-step-enhanced {
    position: relative;
    margin: 1.5rem auto;
    max-width: 350px;
    z-index: 1;
    transition-property: opacity, transform, visibility;
    transition-duration: 0.6s;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

.step-content-enhanced {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    font-weight: 400;
    line-height: 1.6;
    color: #4a5568;
    position: relative;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-content-enhanced:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-color: #cbd5e0;
}

/* Node Type Styles - Using your site's color palette */
.flow-step-enhanced.step-start .step-content-enhanced {
    background: #3182ce;
    color: white;
    border-color: #2c5282;
    box-shadow: 0 4px 12px rgba(49, 130, 206, 0.25);
}

.flow-step-enhanced.step-query .step-content-enhanced {
    background: #805ad5;
    color: white;
    border-color: #6b46c1;
    box-shadow: 0 4px 12px rgba(128, 90, 213, 0.25);
}

.flow-step-enhanced.step-decision .step-content-enhanced {
    background: #fffbeb;
    border-color: #d69e2e;
    color: #744210;
    border-radius: 20px;
    position: relative;
    border-width: 2px;
}

.flow-step-enhanced.step-decision .step-content-enhanced::before {
    content: '?';
    position: absolute;
    top: -12px;
    right: -12px;
    width: 24px;
    height: 24px;
    background: #d69e2e;
    color: white;
    border-radius: 50%;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid white;
    box-shadow: 0 2px 4px rgba(214, 158, 46, 0.3);
}

.flow-step-enhanced.step-action .step-content-enhanced {
    background: #ebf8ff;
    border-color: #3182ce;
    color: #2c5282;
}

.flow-step-enhanced.step-end .step-content-enhanced {
    background: #38a169;
    color: white;
    border-color: #2f855a;
    box-shadow: 0 4px 12px rgba(56, 161, 105, 0.25);
}

/* Step text styling */
.step-text strong {
    font-weight: 600;
    color: inherit;
    font-family: 'Inter', sans-serif;
}

/* Query Badges - Matches your meta badge styling */
.query-badge-enhanced {
    position: absolute;
    top: -14px;
    right: -14px;
    min-width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    font-weight: 600;
    border: 3px solid white;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.query-badge-enhanced.cut {
    background: #e53e3e;
    color: white;
}

.query-badge-enhanced.eval {
    background: #805ad5;
    color: white;
}

.query-badge-enhanced.mixed {
    background: linear-gradient(45deg, #e53e3e 50%, #805ad5 50%);
    color: white;
}

.query-badge-enhanced:hover {
    transform: scale(1.1);
}

/* Tooltips - Matches your site's tooltip styling */
.query-tooltip-enhanced {
    position: absolute;
    bottom: -36px;
    left: 50%;
    transform: translateX(-50%);
    background: #2d3748;
    color: #e2e8f0;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    font-weight: 400;
    white-space: nowrap;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
    z-index: 20;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.query-tooltip-enhanced::before {
    content: '';
    position: absolute;
    top: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-bottom: 4px solid #2d3748;
}

.flow-step-enhanced.step-query:hover .query-tooltip-enhanced {
    opacity: 1;
    transform: translateX(-50%) translateY(-4px);
}

/* Connectors - More subtle to match site aesthetic */
.flow-connector-enhanced {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 40px;
    position: relative;
    margin: 0;
}

.connector-line-enhanced {
    width: 2px;
    height: 100%;
    background: #cbd5e0;
    position: relative;
    border-radius: 1px;
}

.connector-arrow-enhanced {
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 8px solid #cbd5e0;
}

/* ===== BRANCHING SYSTEM FOR DECISION POINTS ===== */

.flow-branches-enhanced {
    display: flex;
    justify-content: space-around;
    align-items: flex-start;
    margin: 2rem 0;
    position: relative;
    gap: 1.5rem;
    padding-top: 1rem;
    transition: opacity 0.6s ease;
}

.branch-connector-enhanced {
    position: absolute;
    top: 0;
    left: 50%;
    width: 60%;
    transform: translateX(-50%);
    height: 2px;
    background: #cbd5e0;
    border-radius: 1px;
    opacity: 1;
    transition: opacity 0.6s ease;
}

.branch-connector-enhanced::before,
.branch-connector-enhanced::after {
    content: '';
    position: absolute;
    top: -8px;
    width: 2px;
    height: 40px;
    background: #cbd5e0;
    border-radius: 1px;
    transition: all 0.4s ease;
}

.branch-connector-enhanced::before {
    left: 0;
}

.branch-connector-enhanced::after {
    right: 0;
}

.flow-branch-enhanced {
    flex: 1;
    max-width: 280px;
    position: relative;
    margin-top: 30px;
    transition: all 0.6s ease;
}

.branch-label-enhanced {
    text-align: center;
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    background: white;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    border: 2px solid #e2e8f0;
    display: inline-block;
    width: 100%;
    box-sizing: border-box;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    transform: translateY(0);
}

.branch-label-enhanced.branch-yes {
    border-color: #38a169;
    color: #276749;
    background: #f0fff4;
}

.branch-label-enhanced.branch-no {
    border-color: #e53e3e;
    color: #c53030;
    background: #fff5f5;
}

.branch-label-enhanced small {
    font-size: 0.6rem;
    font-weight: 400;
    opacity: 0.8;
    text-transform: none;
    letter-spacing: normal;
}

.branch-steps-enhanced {
    position: relative;
}

.flow-branch-enhanced:hover .branch-label-enhanced {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.flow-branch-enhanced .step-content-enhanced {
    font-size: 0.85rem;
    padding: 1.25rem;
    min-height: 70px;
}

/* ===== PROGRESSIVE COUNTER ANIMATIONS ===== */

@keyframes numberUpdate {
    0% {
        transform: scale(1);
        color: inherit;
    }
    50% {
        transform: scale(1.2);
        color: #3182ce;
        font-weight: 700;
    }
    100% {
        transform: scale(1);
        color: inherit;
    }
}

@keyframes metricHighlight {
    0% {
        background-color: white;
        transform: scale(1);
    }
    30% {
        background-color: #ebf8ff;
        transform: scale(1.02);
        border-left-color: #3182ce;
    }
    100% {
        background-color: white;
        transform: scale(1);
    }
}

@keyframes sidebarStateChange {
    0% {
        background-color: inherit;
        border-color: inherit;
    }
    50% {
        transform: scale(1.01);
    }
    100% {
        background-color: inherit;
        border-color: inherit;
        transform: scale(1);
    }
}

@keyframes stepAppear {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.9);
        visibility: visible;
    }
    60% {
        opacity: 0.8;
        transform: translateY(-5px) scale(1.02);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
        visibility: visible;
    }
}

@keyframes badgeReveal {
    0% {
        opacity: 0;
        transform: scale(0) rotate(180deg);
    }
    60% {
        opacity: 1;
        transform: scale(1.2) rotate(10deg);
    }
    100% {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
}

@keyframes indicatorAppear {
    0% {
        opacity: 0;
        transform: translateY(10px) scale(0.9);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes queryPulse {
    0% {
        transform: scale(1);
        box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    }
    50% {
        transform: scale(1.15);
        box-shadow: 0 4px 16px rgba(229, 62, 62, 0.4);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    }
}

@keyframes metricPulse {
    0% {
        transform: scale(1);
        background-color: white;
    }
    50% {
        transform: scale(1.05);
        background-color: #ebf8ff;
    }
    100% {
        transform: scale(1);
        background-color: white;
    }
}

/* ===== SIDEBAR STATE STYLING ===== */

.complexity-sidebar-enhanced.empty-state {
    background: #f8fafc !important;
    border-color: #cbd5e0 !important;
}

.complexity-sidebar-enhanced.ready-state {
    background: #f0f9ff !important;
    border-color: #3182ce !important;
    animation: sidebarStateChange 0.8s ease-out;
}

.complexity-sidebar-enhanced.animating-state {
    background: #fffbeb !important;
    border-color: #f59e0b !important;
}

.complexity-sidebar-enhanced.complete-state {
    background: #f0fff4 !important;
    border-color: #38a169 !important;
    animation: sidebarStateChange 0.8s ease-out;
}

/* ===== ENHANCED QUERY METRICS ===== */

.query-metric-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(49, 130, 206, 0.1), transparent);
    transition: left 0.6s ease;
}

.query-metric-enhanced.updating::before {
    left: 100%;
}

.total-value-enhanced::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #3182ce;
    transition: width 0.6s ease;
}

.total-value-enhanced.updating::after {
    width: 100%;
}

.metric-value-enhanced.counting-up,
.total-value-enhanced.counting-up {
    color: #3182ce;
    font-weight: 700;
    text-shadow: 0 0 8px rgba(49, 130, 206, 0.3);
}

/* ===== ANIMATION CLASSES ===== */

.animate-query {
    animation: queryPulse 0.8s ease-in-out;
}

.animate-metric {
    animation: metricPulse 0.8s ease-in-out;
}

.animate-step {
    animation: stepFadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.flow-step-enhanced.appearing {
    animation: stepAppear 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.query-badge-enhanced.revealing {
    animation: badgeReveal 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.completion-indicator,
.ready-indicator {
    animation: indicatorAppear 0.6s ease-out forwards;
}

/* ===== ANIMATION BUTTON STYLES ===== */

.animation-controls {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin: 1.5rem 0;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.animation-btn {
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.625rem 1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 120px;
    justify-content: center;
}

.animation-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.animation-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.animation-btn.primary {
    background: #3182ce;
    color: white;
}

.animation-btn.primary:hover:not(:disabled) {
    background: #2c5282;
}

.animation-btn.secondary {
    background: #4a5568;
    color: white;
}

.animation-btn.secondary:hover:not(:disabled) {
    background: #2d3748;
}

/* ===== RESPONSIVE DESIGN ===== */

@media (max-width: 1024px) {
    .flowchart-content-enhanced {
        flex-direction: column;
    }

    .complexity-sidebar-enhanced {
        position: static;
        width: 100%;
        margin: 1.5rem 0 0 0;
        order: -1;
    }

    .algorithm-flowchart-enhanced {
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    .algorithm-flowchart-enhanced {
        padding: 1.5rem;
        margin: 1.5rem 0;
    }

    .flowchart-title-enhanced {
        font-size: 1.75rem;
    }

    .step-content-enhanced {
        font-size: 0.875rem;
        padding: 1.25rem;
        min-height: 70px;
    }

    .query-badge-enhanced {
        top: -12px;
        right: -12px;
        min-width: 24px;
        height: 24px;
        font-size: 10px;
    }

    .flow-step-enhanced {
        max-width: 100%;
        margin: 1rem auto;
    }

    .complexity-sidebar-enhanced {
        padding: 1.25rem;
    }

    .flow-branches-enhanced {
        flex-direction: column;
        gap: 2rem;
        padding-top: 0;
    }

    .branch-connector-enhanced {
        display: none;
    }

    .flow-branch-enhanced {
        max-width: 100%;
        margin-top: 0;
    }

    .branch-label-enhanced {
        font-size: 0.8rem;
    }

    .flow-branch-enhanced .step-content-enhanced {
        font-size: 0.8rem;
        padding: 1rem;
    }

    .animation-controls {
        flex-direction: column;
        gap: 0.5rem;
    }

    .animation-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .step-content-enhanced {
        padding: 1rem;
        font-size: 0.8rem;
    }

    .flowchart-title-enhanced {
        font-size: 1.5rem;
    }

    .complexity-overview-enhanced {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }

    .query-metric-enhanced {
        margin: 0.5rem 0;
        padding: 0.6rem;
    }

    .total-complexity-enhanced {
        padding: 0.8rem;
    }

    .ready-indicator,
    .completion-indicator {
        font-size: 0.75rem;
        padding: 0.4rem;
        margin-top: 0.75rem;
    }
}

/* ===== ACCESSIBILITY ENHANCEMENTS ===== */

.flow-step-enhanced:focus-within {
    outline: 2px solid #3182ce;
    outline-offset: 2px;
}

.animation-btn:focus {
    outline: 2px solid #3182ce;
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
}

.query-badge-enhanced:focus {
    outline: 2px solid #3182ce;
    outline-offset: 2px;
}

/* ===== PRINT STYLES ===== */

@media print {
    .algorithm-flowchart-enhanced {
        box-shadow: none;
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }

    .complexity-sidebar-enhanced {
        position: static;
        width: 100%;
        margin: 1rem 0;
        box-shadow: none;
        border: 1px solid #ccc;
    }

    .animation-controls {
        display: none;
    }

    .query-badge-enhanced {
        background: #ccc !important;
        color: black !important;
    }

    .flow-step-enhanced .step-content-enhanced {
        background: white !important;
        color: black !important;
        border: 1px solid #ccc !important;
    }
}

/* ===== GROWING CONTAINER ANIMATIONS ===== */

/* Enhanced container with growth animation */
.algorithm-flowchart-enhanced {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    border: 1px solid #e2e8f0;
    position: relative;
    overflow: hidden; /* Changed from visible to hidden for growth effect */
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 200px; /* Start with minimal height */
    transform-origin: top center; /* Scale from top */
}

.algorithm-flowchart-enhanced:hover {
    transform: translateY(-2px) scale(1.005); /* Slightly enhanced hover */
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

/* Growing animation state */
.algorithm-flowchart-enhanced.growing-animation {
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12); /* Enhanced shadow during growth */
}

/* Steps container with constrained height during animation */
.flowchart-steps-enhanced {
    flex: 1;
    min-width: 0;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden; /* Hide content that exceeds max-height */
    min-height: 0; /* Allow shrinking */
}

/* Content reveal animations */
.flowchart-content-enhanced {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    transition: opacity 0.4s ease;
}

/* Container size states */
.algorithm-flowchart-enhanced.size-small {
    min-height: 200px;
    transform: scale(0.95);
}

.algorithm-flowchart-enhanced.size-growing {
    min-height: 400px;
    transform: scale(1);
}

.algorithm-flowchart-enhanced.size-large {
    min-height: 600px;
    transform: scale(1);
}

.algorithm-flowchart-enhanced.size-complete {
    min-height: auto;
    transform: scale(1);
    overflow: visible;
}

/* Sidebar responsiveness during growth */
.complexity-sidebar-enhanced {
    width: 240px;
    background: #f8f9fa;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 120px;
    margin-left: 2rem;
    flex-shrink: 0;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    /* Ensure sidebar doesn't get cut off during growth */
    align-self: flex-start;
}

/* Enhanced branch container growth */
.flow-branches-enhanced {
    display: flex;
    justify-content: space-around;
    align-items: flex-start;
    margin: 2rem 0;
    position: relative;
    gap: 1.5rem;
    padding-top: 1rem;
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(20px);
}

.flow-branches-enhanced.revealing {
    opacity: 1;
    transform: translateY(0);
}

/* Container growth pulse effects */
@keyframes containerGrowPulse {
    0% {
        transform: scale(1);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    }
    50% {
        transform: scale(1.01);
        box-shadow: 0 8px 20px rgba(49, 130, 206, 0.15);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    }
}

@keyframes containerExpand {
    0% {
        min-height: 200px;
        transform: scale(0.95);
    }
    100% {
        min-height: var(--target-height, 400px);
        transform: scale(1);
    }
}

.algorithm-flowchart-enhanced.expanding {
    animation: containerExpand 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.algorithm-flowchart-enhanced.pulse-grow {
    animation: containerGrowPulse 0.6s ease-out;
}

/* Responsive growth behavior */
@media (max-width: 1024px) {
    .flowchart-content-enhanced {
        flex-direction: column;
    }

    .complexity-sidebar-enhanced {
        position: static;
        width: 100%;
        margin: 1.5rem 0 0 0;
        order: -1;
        /* Prevent sidebar from affecting container growth on mobile */
        flex-shrink: 1;
    }

    .algorithm-flowchart-enhanced {
        padding: 1.5rem;
    }

    /* Adjust growth calculations for mobile */
    .algorithm-flowchart-enhanced.size-small {
        min-height: 180px;
    }

    .algorithm-flowchart-enhanced.size-growing {
        min-height: 350px;
    }

    .algorithm-flowchart-enhanced.size-large {
        min-height: 500px;
    }
}

@media (max-width: 768px) {
    .algorithm-flowchart-enhanced {
        padding: 1.5rem;
        margin: 1.5rem 0;
        min-height: 160px;
    }

    .algorithm-flowchart-enhanced.size-small {
        min-height: 160px;
        transform: scale(0.98);
    }

    .algorithm-flowchart-enhanced.size-growing {
        min-height: 300px;
    }

    .algorithm-flowchart-enhanced.size-large {
        min-height: 450px;
    }

    .flowchart-steps-enhanced {
        /* Tighter constraints on mobile */
        max-height: none; /* Let content flow naturally on mobile */
    }
}

/* Content overflow handling during animation */
.flowchart-steps-enhanced::-webkit-scrollbar {
    display: none; /* Hide scrollbar during growth animation */
}

.flowchart-steps-enhanced {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

/* Smooth height transitions for different algorithm complexities */
.algorithm-flowchart-enhanced[data-algorithm="divide-and-choose"] {
    --min-final-height: 400px;
}

.algorithm-flowchart-enhanced[data-algorithm="austins-moving-knife"] {
    --min-final-height: 450px;
}

.algorithm-flowchart-enhanced[data-algorithm="steinhaus-lone-divider"] {
    --min-final-height: 600px;
}

/* Loading state for container */
.algorithm-flowchart-enhanced.preparing {
    min-height: 120px;
    opacity: 0.8;
    transform: scale(0.9);
}

.algorithm-flowchart-enhanced.ready {
    min-height: 200px;
    opacity: 1;
    transform: scale(1);
}

/* Final completion state */
.algorithm-flowchart-enhanced.animation-complete {
    overflow: visible; /* Allow full content visibility */
    min-height: auto;
    box-shadow: 0 8px 25px rgba(56, 161, 105, 0.15); /* Green tint for completion */
    border-color: #68d391;
}

/* Ensure proper stacking during growth */
.algorithm-flowchart-enhanced {
    z-index: 1;
}

.algorithm-flowchart-enhanced.growing-animation {
    z-index: 2; /* Bring to front during animation */
}

/* Quick fix - add to your main.css */
.algorithm-flowchart-enhanced {
    overflow: visible !important;
    padding: 3rem 2.5rem !important;
}

.flowchart-steps-enhanced {
    overflow: visible !important;
    padding: 1rem !important;
}

/* Mobile fix */
@media (max-width: 768px) {
    .query-badge-enhanced {
        top: 8px !important;
        right: 8px !important;
        min-width: 24px !important;
        height: 24px !important;
    }
}

/* New badge types for indivisible resources */
.mechanism-badge {
    background: #fed7d7;
    color: #c53030;
}

.property-note {
    color: #6b7280;
    font-style: italic;
    margin-top: 0.5rem;
    font-size: 0.85rem;
}