/**
 * Python & AI Introduction Course Styles
 * Interactive learning experience with brand colors
 * Supports dark and light themes
 */

/* ========================================
   CSS Variables & Theme Support
   ======================================== */
:root {
    --pac-purple: #8b5cf6;
    --pac-blue: #3b82f6;
    --pac-emerald: #10b981;
    --pac-pink: #ec4899;
    --pac-yellow: #f59e0b;
    --pac-red: #ef4444;
}

[data-theme="dark"] {
    --pac-bg-primary: #05070a;
    --pac-bg-secondary: #0f1219;
    --pac-bg-card: rgba(15, 18, 25, 0.8);
    --pac-text-primary: #f8fafc;
    --pac-text-secondary: #94a3b8;
    --pac-text-muted: #64748b;
    --pac-border: rgba(255, 255, 255, 0.1);
    --pac-border-hover: rgba(139, 92, 246, 0.5);
    --pac-code-bg: #000000;
    --pac-code-text: #10b981;
}

[data-theme="light"] {
    --pac-bg-primary: #ffffff;
    --pac-bg-secondary: #f8fafc;
    --pac-bg-card: rgba(255, 255, 255, 0.9);
    --pac-text-primary: #0f172a;
    --pac-text-secondary: #475569;
    --pac-text-muted: #64748b;
    --pac-border: rgba(15, 23, 42, 0.1);
    --pac-border-hover: rgba(139, 92, 246, 0.3);
    --pac-code-bg: #1e293b;
    --pac-code-text: #10b981;
}

/* ========================================
   Main Container
   ======================================== */
.python-ai-course {
    background: var(--pac-bg-primary);
    min-height: 100vh;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.pac-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* ========================================
   Background Blobs
   ======================================== */
.pac-blob {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    z-index: 0;
    pointer-events: none;
}

.pac-blob-purple {
    background: radial-gradient(circle, var(--pac-purple) 0%, transparent 70%);
    top: -100px;
    right: -100px;
}

.pac-blob-blue {
    background: radial-gradient(circle, var(--pac-blue) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
}

[data-theme="light"] .pac-blob {
    opacity: 0.08;
}

/* ========================================
   Hero Section
   ======================================== */
.pac-hero {
    text-align: center;
    margin-bottom: 80px;
}

.pac-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 50px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--pac-blue);
    margin-bottom: 24px;
}

.pac-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--pac-text-primary);
    letter-spacing: -0.02em;
}

.pac-gradient-text {
    background: linear-gradient(90deg, #c084fc, #6366f1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pac-subtitle {
    font-size: 20px;
    line-height: 1.6;
    color: var(--pac-text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* ========================================
   Stats Grid
   ======================================== */
.pac-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 80px;
}

.pac-stat-card {
    background: var(--pac-bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--pac-border);
    border-radius: 20px;
    padding: 40px 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.pac-stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--pac-border-hover);
    box-shadow: 0 10px 30px -10px rgba(139, 92, 246, 0.3);
}

.pac-stat-value {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 8px;
}

.pac-stat-card:nth-child(1) .pac-stat-value {
    color: var(--pac-purple);
}

.pac-stat-card:nth-child(2) .pac-stat-value {
    color: var(--pac-blue);
}

.pac-stat-card:nth-child(3) .pac-stat-value {
    color: var(--pac-emerald);
}

.pac-stat-label {
    font-size: 14px;
    color: var(--pac-text-muted);
    font-weight: 600;
}

/* ========================================
   Python Section
   ======================================== */
.pac-python-section {
    margin-bottom: 100px;
}

.pac-section-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 48px;
}

.pac-python-icon {
    font-size: 40px;
    color: #ffd43b;
}

.pac-section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--pac-text-primary);
    margin: 0;
}

.pac-python-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.pac-intro-text {
    font-size: 16px;
    line-height: 1.7;
    color: var(--pac-text-secondary);
    margin-bottom: 32px;
}

.pac-concepts-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.pac-concept-item {
    padding: 20px 24px;
    background: var(--pac-bg-secondary);
    border: 1px solid var(--pac-border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pac-concept-item:hover {
    background: var(--pac-bg-card);
    border-color: var(--pac-border-hover);
    transform: translateX(8px);
}

.pac-concept-item.active {
    background: var(--pac-bg-card);
    border-color: var(--pac-purple);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.2);
}

.pac-concept-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.pac-concept-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--pac-text-primary);
}

.pac-concept-item:hover .pac-concept-title {
    color: var(--pac-purple);
}

.pac-concept-header i {
    font-size: 12px;
    color: var(--pac-text-muted);
    opacity: 0.5;
    transition: all 0.3s ease;
}

.pac-concept-item:hover .pac-concept-header i {
    opacity: 1;
    transform: translateX(4px);
}

.pac-concept-desc {
    font-size: 13px;
    color: var(--pac-text-muted);
    margin: 0;
}

/* Code Display */
.pac-code-display {
    background: var(--pac-bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--pac-border);
    border-radius: 16px;
    overflow: hidden;
    position: sticky;
    top: 100px;
}

.pac-code-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--pac-border);
}

.pac-code-dots {
    display: flex;
    gap: 8px;
}

.pac-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.pac-dot-red {
    background: var(--pac-red);
}

.pac-dot-yellow {
    background: var(--pac-yellow);
}

.pac-dot-green {
    background: var(--pac-emerald);
}

.pac-code-block {
    background: var(--pac-code-bg);
    padding: 24px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    line-height: 1.8;
    color: var(--pac-code-text);
    min-height: 200px;
    white-space: pre-wrap;
    border-left: 4px solid var(--pac-purple);
}

.pac-code-output {
    padding: 16px 24px;
    background: rgba(0, 0, 0, 0.2);
    font-family: 'Courier New', Courier, monospace;
    font-size: 12px;
    color: var(--pac-text-secondary);
    border-top: 1px solid var(--pac-border);
}

[data-theme="light"] .pac-code-output {
    background: rgba(0, 0, 0, 0.05);
}

/* ========================================
   API Section
   ======================================== */
.pac-api-section {
    margin-bottom: 100px;
}

.pac-section-center {
    text-align: center;
    margin-bottom: 64px;
}

.pac-section-subtitle {
    font-size: 18px;
    line-height: 1.6;
    color: var(--pac-text-secondary);
    max-width: 600px;
    margin: 16px auto 0;
}

.pac-api-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.pac-api-card {
    flex: 1;
    background: var(--pac-bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--pac-border);
    border-radius: 20px;
    padding: 40px 32px;
    text-align: center;
    transition: all 0.3s ease;
}

.pac-api-card:hover {
    transform: translateY(-8px);
    border-color: var(--pac-border-hover);
    box-shadow: 0 20px 40px -10px rgba(139, 92, 246, 0.3);
}

.pac-api-right {
    border-color: rgba(139, 92, 246, 0.3);
}

.pac-api-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.pac-api-left .pac-api-icon {
    color: var(--pac-blue);
}

.pac-api-right .pac-api-icon {
    color: var(--pac-purple);
}

.pac-api-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--pac-text-primary);
    margin-bottom: 8px;
}

.pac-api-desc {
    font-size: 13px;
    color: var(--pac-text-muted);
    margin: 0;
}

.pac-api-connector {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.pac-api-pulse {
    width: 48px;
    height: 48px;
    background: rgba(139, 92, 246, 0.2);
    border: 2px solid rgba(139, 92, 246, 0.4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s ease-in-out infinite;
}

.pac-api-pulse i {
    color: var(--pac-purple);
    font-size: 20px;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.pac-api-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--pac-text-muted);
}

/* ========================================
   Projects Section
   ======================================== */
.pac-projects-section {
    margin-bottom: 100px;
}

.pac-projects-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 48px;
    gap: 32px;
}

.pac-section-label {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 50px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--pac-purple);
    margin-bottom: 16px;
}

.pac-projects-section .pac-section-title {
    margin-bottom: 8px;
}

.pac-projects-meta {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-end;
}

.pac-projects-meta span,
.pac-labs-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--pac-text-muted);
    font-weight: 600;
}

.pac-labs-link {
    padding: 8px 16px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 8px;
    color: var(--pac-emerald);
    text-decoration: none;
    transition: all 0.3s ease;
}

.pac-labs-link:hover {
    background: rgba(16, 185, 129, 0.2);
    border-color: rgba(16, 185, 129, 0.4);
    transform: translateY(-2px);
}

.pac-projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.pac-project-card {
    background: var(--pac-bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--pac-border);
    border-radius: 20px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

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

.pac-project-card:hover {
    transform: translateY(-8px);
    border-color: var(--pac-border-hover);
    box-shadow: 0 20px 40px -10px rgba(139, 92, 246, 0.3);
}

.pac-project-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(59, 130, 246, 0.2));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 28px;
    color: var(--pac-purple);
    transition: transform 0.3s ease;
}

.pac-project-card:hover .pac-project-icon {
    transform: scale(1.1) rotate(5deg);
}

.pac-icon-blue {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(16, 185, 129, 0.2));
    color: var(--pac-blue);
}

.pac-icon-emerald {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(245, 158, 11, 0.2));
    color: var(--pac-emerald);
}

.pac-icon-yellow {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(239, 68, 68, 0.2));
    color: var(--pac-yellow);
}

.pac-project-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(139, 92, 246, 0.1);
    border-radius: 50px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--pac-purple);
    margin-bottom: 16px;
    width: fit-content;
}

.pac-project-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--pac-text-primary);
    margin-bottom: 12px;
}

.pac-project-highlights {
    list-style: none;
    padding: 0;
    margin: 0 0 24px 0;
}

.pac-project-highlights li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--pac-text-muted);
    margin-bottom: 8px;
}

.pac-project-highlights li i {
    font-size: 6px;
    color: var(--pac-purple);
}

.pac-project-desc {
    font-size: 14px;
    line-height: 1.6;
    color: var(--pac-text-secondary);
    margin-bottom: 24px;
    flex-grow: 1;
}

.pac-project-btn {
    width: 100%;
    padding: 12px 24px;
    background: var(--pac-bg-secondary);
    border: 1px solid var(--pac-border);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--pac-text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.pac-project-btn:hover {
    background: var(--pac-purple);
    border-color: var(--pac-purple);
    color: white;
}

/* ========================================
   Labs Section
   ======================================== */
.pac-labs-section {
    margin-bottom: 100px;
}

.pac-labs-header {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 48px;
}

.pac-labs-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(59, 130, 246, 0.2));
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--pac-emerald);
}

.pac-labs-card {
    background: var(--pac-bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--pac-border);
    border-radius: 24px;
    padding: 48px;
    overflow: hidden;
}

.pac-labs-ribbon {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: rgba(255, 215, 0, 0.1);
    border: 1px solid rgba(255, 215, 0, 0.2);
    border-radius: 12px;
    margin-bottom: 32px;
    width: fit-content;
}

.pac-labs-ribbon i {
    font-size: 20px;
    color: #ffd43b;
}

.pac-labs-ribbon span {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--pac-text-secondary);
}

.pac-labs-intro {
    padding: 24px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), rgba(59, 130, 246, 0.05));
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 16px;
    margin-bottom: 40px;
}

.pac-labs-intro h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--pac-text-primary);
    margin-bottom: 12px;
}

.pac-labs-intro p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--pac-text-secondary);
    margin: 0;
}

.pac-labs-grid {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.pac-lab-topic {
    margin-bottom: 16px;
}

.pac-lab-topic-header {
    padding: 20px 24px;
    background: rgba(139, 92, 246, 0.05);
    border: 1px solid rgba(139, 92, 246, 0.15);
    border-radius: 12px;
    margin-bottom: 16px;
}

.pac-lab-topic-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--pac-emerald);
    margin-bottom: 8px;
}

#lab2 .pac-lab-topic-title {
    color: var(--pac-purple);
}

.pac-lab-topic-desc {
    font-size: 13px;
    line-height: 1.6;
    color: var(--pac-text-secondary);
    margin: 0;
}

.pac-lab-topic-desc code {
    padding: 2px 6px;
    background: rgba(139, 92, 246, 0.15);
    border-radius: 4px;
    font-family: 'Fira Code', 'Courier New', Courier, monospace;
    font-size: 12px;
    color: var(--pac-purple);
}

.pac-lab-cell {
    background: var(--pac-bg-secondary);
    border: 1px solid var(--pac-border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.pac-lab-cell:hover {
    border-color: var(--pac-border-hover);
    box-shadow: 0 8px 24px -8px rgba(16, 185, 129, 0.2);
}

.pac-lab-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--pac-border);
}

[data-theme="light"] .pac-lab-header {
    background: rgba(0, 0, 0, 0.03);
}

.pac-lab-header span {
    font-size: 13px;
    font-weight: 700;
    color: var(--pac-emerald);
    font-family: 'Courier New', Courier, monospace;
}

.pac-lab-run {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--pac-emerald);
    border: none;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pac-lab-run:hover {
    background: #0ea574;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.pac-lab-run i {
    font-size: 10px;
}

.pac-lab-code {
    padding: 24px;
    font-family: 'Fira Code', 'Courier New', Courier, monospace;
    font-size: 13px;
    line-height: 1.8;
    color: #e2e8f0;
    background: #000000;
    margin: 0;
    white-space: pre;
    overflow-x: auto;
}

[data-theme="light"] .pac-lab-code {
    color: #1e293b;
    background: #f8fafc;
}

.pac-lab-output {
    padding: 16px 24px;
    background: rgba(16, 185, 129, 0.05);
    border-top: 1px solid var(--pac-border);
    font-family: 'Fira Code', 'Courier New', Courier, monospace;
    font-size: 13px;
    color: var(--pac-text-secondary);
    display: none;
}

.pac-lab-output.visible {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pac-lab-challenges {
    margin-top: 48px;
    padding: 32px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.05), rgba(239, 68, 68, 0.05));
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: 20px;
}

.pac-challenges-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--pac-yellow);
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.pac-challenges-title i {
    font-size: 28px;
}

/* ========================================
   Modal
   ======================================== */
.pac-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.pac-modal.active {
    display: flex;
}

.pac-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
}

.pac-modal-content {
    position: relative;
    background: var(--pac-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--pac-border);
    border-radius: 24px;
    padding: 40px;
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    animation: modalSlideUp 0.3s ease;
}

@keyframes modalSlideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pac-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: var(--pac-text-muted);
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pac-modal-close:hover {
    background: rgba(239, 68, 68, 0.2);
    color: var(--pac-red);
    transform: rotate(90deg);
}

.pac-modal-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--pac-text-primary);
    margin-bottom: 24px;
}

.pac-modal-input,
.pac-modal-textarea {
    width: 100%;
    padding: 16px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--pac-border);
    border-radius: 12px;
    font-size: 14px;
    color: var(--pac-text-primary);
    margin-bottom: 16px;
    font-family: inherit;
}

[data-theme="light"] .pac-modal-input,
[data-theme="light"] .pac-modal-textarea {
    background: rgba(0, 0, 0, 0.05);
}

.pac-modal-textarea {
    resize: vertical;
    min-height: 120px;
    font-family: 'Courier New', Courier, monospace;
}

.pac-modal-buttons {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.pac-modal-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pac-modal-btn-primary {
    background: linear-gradient(90deg, var(--pac-purple), var(--pac-blue));
    color: white;
}

.pac-modal-btn-primary:hover {
    transform: scale(1.05);
}

.pac-modal-btn-secondary {
    background: var(--pac-pink);
    color: white;
}

.pac-modal-result {
    padding: 16px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    font-size: 13px;
    color: var(--pac-text-secondary);
    font-family: 'Courier New', Courier, monospace;
    font-style: italic;
}

[data-theme="light"] .pac-modal-result {
    background: rgba(0, 0, 0, 0.05);
}

.pac-modal-result-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pac-modal-result-list li {
    padding: 12px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    margin-bottom: 8px;
    font-size: 11px;
    color: var(--pac-text-muted);
}

.pac-modal-body {
    max-height: 70vh;
    overflow-y: auto;
}

.pac-modal-code {
    padding: 20px;
    background: var(--pac-code-bg);
    border: 1px solid var(--pac-border);
    border-radius: 12px;
    font-family: 'Fira Code', 'Courier New', Courier, monospace;
    font-size: 13px;
    line-height: 1.8;
    color: var(--pac-code-text);
    overflow-x: auto;
    margin: 16px 0;
}

.pac-modal-code pre {
    margin: 0;
    white-space: pre;
}

.pac-modal-info {
    padding: 16px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 12px;
    margin-top: 16px;
}

.pac-modal-info p {
    font-size: 12px;
    color: var(--pac-blue);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .pac-python-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .pac-code-display {
        position: static;
    }

    .pac-api-flow {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .pac-title {
        font-size: 40px;
    }

    .pac-subtitle {
        font-size: 18px;
    }

    .pac-section-title {
        font-size: 28px;
    }

    .pac-stats-grid {
        grid-template-columns: 1fr;
    }

    .pac-projects-grid {
        grid-template-columns: 1fr;
    }

    .pac-projects-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .pac-projects-meta {
        align-items: flex-start;
    }

    .pac-labs-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .pac-labs-card {
        padding: 24px;
    }

    .pac-lab-code {
        font-size: 11px;
    }

    .pac-lab-topic-header {
        padding: 16px;
    }

    .pac-lab-challenges {
        padding: 20px;
    }

    .pac-modal-content {
        padding: 32px 24px;
    }

    .pac-challenges-title {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .pac-title {
        font-size: 32px;
    }

    .pac-section-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .pac-modal-content {
        padding: 24px 20px;
    }
}