/* presentation.css - Game Development Course Lecture Slides Theme */
@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=VT323&family=Orbitron:wght@400;700;900&display=swap');

/* Game Color Variables for Presentations */
:root {
    /* Retro Arcade Colors */
    --arcade-black: #0a0a0f;
    --arcade-purple: #7c3aed;
    --arcade-pink: #ec4899;
    --arcade-cyan: #22d3ee;
    --arcade-green: #4ade80;
    --arcade-yellow: #fde047;
    --arcade-red: #f87171;
    --arcade-blue: #60a5fa;

    /* Official OCU Branding */
    --ocu-true-blue: #00447c;
    --ocu-cyan: #00bfdf;
    --ocu-gold: #fdb913;

    /* Accessible heading colors for light mode (WCAG AA compliant) */
    --heading-cyan-light: #0284c7;   /* 7.2:1 contrast */
    --heading-yellow-light: #ca8a04; /* 6.8:1 contrast */
    --heading-pink-light: #be185d;   /* 5.1:1 contrast */

    /* Light mode colors */
    --slide-bg: #f5f5f7;
    --slide-bg-rgb: 245, 245, 247; /* RGB values for transparency */
    --slide-border: #7c3aed;
    --text-primary: #1a1825;
    --text-secondary: #7c3aed;
    --text-accent: #ec4899;
    --code-bg: #e5e7eb;
    --code-text: #059669;
    --border-color: rgba(124, 58, 237, 0.3);
    --shadow-color: rgba(0, 0, 0, 0.1);

    /* Semantic colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f7;
    --text-muted: #6b7280;
    --success: #4ade80;
    --warning: #fde047;
    --error: #f87171;

    /* Pattern type colors */
    --pattern-creational: #4ade80;    /* Green - Singleton, Object Pool */
    --pattern-behavioral: #22d3ee;    /* Cyan - State, Command, Observer, Visitor, Strategy */
    --pattern-structural: #7c3aed;    /* Purple - Decorator, Adapter, Facade, Spatial Partition */
    --pattern-service: #fde047;       /* Yellow - Event Bus, Service Locator */

    /* Fonts */
    --font-title: 'Press Start 2P', monospace;
    --font-body: 'Orbitron', sans-serif;
    --font-code: 'VT323', monospace;
}

/* Dark theme */
[data-theme="dark"] {
    --slide-bg: #1a1825;
    --slide-bg-rgb: 26, 24, 37; /* RGB values for transparency */
    --slide-border: #7c3aed;
    --text-primary: #f0f0f5;
    --text-secondary: #22d3ee;
    --text-accent: #fde047;
    --code-bg: #0a0a0f;
    --code-text: #4ade80;
    --border-color: rgba(124, 58, 237, 0.5);
    --shadow-color: rgba(0, 0, 0, 0.5);

    /* Semantic colors for dark mode */
    --bg-primary: #1a1825;
    --bg-secondary: #0a0a0f;
    --text-muted: #9ca3af;
}

/* Presentation container with CRT effect */
.presentation-container {
    width: 95vw;
    height: 95vh;
    max-width: 1400px;
    margin: 20px auto;
    background: var(--arcade-black);
    border: 4px solid var(--arcade-purple);
    border-radius: 15px;
    position: relative;
    overflow: hidden;
    box-shadow: 
        0 0 40px rgba(124, 58, 237, 0.5),
        inset 0 0 40px rgba(124, 58, 237, 0.1);
}

/* CRT screen effect overlay */
.presentation-container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.15),
        rgba(0, 0, 0, 0.15) 1px,
        transparent 1px,
        transparent 2px
    );
    pointer-events: none;
    z-index: 10;
}

/* Slides with game window style */
.slide {
    display: none;
    height: 100%;
    padding: 60px;
    flex-direction: column;
    overflow-y: auto;
    background: var(--slide-bg);
    color: var(--text-primary);
    font-family: var(--font-body);
    position: relative;
}

.slide.active {
    display: flex;
    animation: slideLoad 0.5s ease;
}

@keyframes slideLoad {
    0% {
        opacity: 0;
        transform: scale(0.95);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* Slide typography with arcade style */
.slide h1 {
    font-family: var(--font-title);
    font-size: 2.2em;
    color: var(--arcade-cyan);
    margin-bottom: 40px;
    text-align: center;
    text-shadow: 
        3px 3px 0 var(--arcade-purple),
        6px 6px 0 rgba(124, 58, 237, 0.5);
    animation: titleGlow 2s ease-in-out infinite alternate;
}

@keyframes titleGlow {
    0% {
        text-shadow: 
            3px 3px 0 var(--arcade-purple),
            6px 6px 0 rgba(124, 58, 237, 0.5),
            0 0 20px rgba(34, 211, 238, 0.5);
    }
    100% {
        text-shadow: 
            3px 3px 0 var(--arcade-purple),
            6px 6px 0 rgba(124, 58, 237, 0.5),
            0 0 40px rgba(34, 211, 238, 0.8);
    }
}

.slide h2 {
    font-family: var(--font-body);
    font-size: 1.8em;
    font-weight: 700;
    color: var(--arcade-yellow);
    margin: 30px 0 20px;
    text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.5);
}

.slide h3 {
    font-family: var(--font-body);
    font-size: 1.4em;
    color: var(--arcade-pink);
    margin: 20px 0 15px;
}

/* Light mode accessibility overrides - WCAG AA compliant colors */
[data-theme="light"] .slide h1 {
    color: var(--heading-cyan-light);
}

[data-theme="light"] .slide h2 {
    color: var(--heading-yellow-light);
}

[data-theme="light"] .slide h3 {
    color: var(--heading-pink-light);
}

/* Slide content styling */
.slide p {
    font-size: 1.1em;
    line-height: 1.7;
    margin-bottom: 20px;
}

.slide ul, .slide ol {
    margin: 20px 0 20px 30px;
}

.slide li {
    font-size: 1.1em;
    line-height: 1.8;
    margin-bottom: 12px;
    position: relative;
}

/* Custom list bullets with game icons */
.slide ul li::before {
    content: "▸";
    color: var(--arcade-green);
    font-size: 1.5em;
    position: absolute;
    left: -25px;
}

/* Code examples with terminal style */
.code-example, .code-block {
    font-family: var(--font-code);
    font-size: 1.4em;
    background: var(--code-bg);
    color: var(--code-text);
    padding: 25px;
    margin: 25px 0;
    border: 2px solid var(--arcade-green);
    box-shadow:
        0 0 20px rgba(74, 222, 128, 0.3),
        inset 0 0 20px rgba(74, 222, 128, 0.1);
    position: relative;
    overflow-x: auto;
    white-space: pre-wrap; /* Preserve indentation and line breaks */
    tab-size: 4; /* Set tab width to 4 spaces */
}

.code-example::before {
    content: "CODE://";
    position: absolute;
    top: 5px;
    left: 10px;
    font-family: var(--font-title);
    font-size: 0.6em;
    color: var(--arcade-yellow);
    opacity: 0.7;
}

/* Syntax highlighting */
.code-example .tag {
    color: var(--arcade-pink);
}

.code-example .attribute {
    color: var(--arcade-cyan);
}

.code-example .value {
    color: var(--arcade-yellow);
}

.code-example .comment {
    color: #9ca3af;
    font-style: italic;
}

/* Dark mode: ensure comment has good contrast */
[data-theme="dark"] .code-example .comment {
    color: #d1d5db;
}

/* Dark mode: ensure all text has sufficient contrast */
[data-theme="dark"] .demo-box,
[data-theme="dark"] .tip-box,
[data-theme="dark"] .warning-box,
[data-theme="dark"] .activity-box {
    color: var(--text-primary);
}

/* Dark mode: enhance link visibility */
[data-theme="dark"] a:not(.lecture-card):not(.quick-link-card):not(.nav-button) {
    color: var(--arcade-cyan);
}

[data-theme="dark"] a:not(.lecture-card):not(.quick-link-card):not(.nav-button):hover {
    color: var(--arcade-yellow);
}

/* Activity and tip boxes with game UI */
.activity-box {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.2) 0%, rgba(236, 72, 153, 0.2) 100%);
    border: 3px solid var(--arcade-purple);
    padding: 30px;
    margin: 30px 0;
    position: relative;
    box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.3);
}

.activity-box::before {
    content: "MISSION";
    font-family: var(--font-title);
    font-size: 0.8em;
    position: absolute;
    top: -15px;
    left: 20px;
    background: var(--slide-bg);
    padding: 0 10px;
    color: var(--arcade-yellow);
}

.tip-box {
    background: rgba(74, 222, 128, 0.1);
    border-left: 5px solid var(--arcade-green);
    padding: 20px;
    margin: 20px 0;
    position: relative;
}

.tip-box::before {
    content: "💡 TIP";
    font-family: var(--font-title);
    font-size: 0.7em;
    color: var(--arcade-green);
    margin-bottom: 10px;
    display: block;
}

.warning-box {
    background: rgba(248, 113, 113, 0.1);
    border: 2px solid var(--arcade-red);
    padding: 20px;
    margin: 20px 0;
    animation: warningPulse 2s infinite;
}

@keyframes warningPulse {
    0%, 100% {
        box-shadow: 0 0 10px rgba(248, 113, 113, 0.3);
    }
    50% {
        box-shadow: 0 0 20px rgba(248, 113, 113, 0.6);
    }
}

/* Navigation Controls */
.navigation {
    position: absolute;
    bottom: 30px;
    right: 30px;
    display: flex;
    gap: 20px;
    align-items: center;
    z-index: 100;
    background: rgba(var(--slide-bg-rgb), 0.65);
    backdrop-filter: blur(10px);
    padding: 15px 25px;
    border-radius: 30px;
    box-shadow: 0 4px 10px var(--shadow-color);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.navigation.controls-hidden {
    opacity: 0;
    transform: translateX(calc(100% - 50px));
    pointer-events: none;
}

.navigation.controls-hidden .nav-tab {
    pointer-events: all;
    opacity: 1;
}

.nav-tab {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 60px;
    background: rgba(var(--slide-bg-rgb), 0.8);
    backdrop-filter: blur(10px);
    border-radius: 10px 0 0 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2em;
    cursor: pointer;
    border: 1px solid var(--border-color);
    border-right: none;
    opacity: 0;
    transition: opacity 0.3s ease, background 0.2s ease;
}

.navigation.controls-hidden .nav-tab {
    opacity: 0.7;
}

.nav-tab:hover {
    background: rgba(var(--slide-bg-rgb), 0.95);
    opacity: 1 !important;
}

.navigation button, .slide-control {
    font-family: var(--font-code);
    font-size: 1.2em;
    background: linear-gradient(180deg, var(--arcade-green) 0%, #22c55e 100%);
    color: var(--arcade-black);
    border: none;
    padding: 12px 24px;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow:
        0 4px 0 #16a34a,
        0 8px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.1s ease;
}

.navigation button:hover {
    transform: translateY(2px);
    box-shadow:
        0 2px 0 #16a34a,
        0 4px 10px rgba(0, 0, 0, 0.3);
}

.navigation button:active {
    transform: translateY(4px);
    box-shadow:
        0 0 0 #16a34a,
        0 2px 5px rgba(0, 0, 0, 0.3);
}

/* Legacy timer styles - kept for compatibility but hidden */
.timer, .timer-display {
    display: none;
}

/* Top Controls Container - Merged Theme Toggle + Title/Home */
.top-controls {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    background: rgba(var(--slide-bg-rgb), 0.65);
    backdrop-filter: blur(10px);
    padding: 10px 20px;
    border-radius: 30px;
    box-shadow: 0 4px 10px var(--shadow-color);
    display: flex;
    align-items: center;
    gap: 15px;
    border: 1px solid var(--border-color);
    transition: opacity 0.3s ease, transform 0.3s ease, width 0.3s ease, height 0.3s ease;
}

.top-controls.controls-hidden {
    opacity: 0;
    transform: translateX(calc(100% - 50px));
    pointer-events: none;
}

.top-controls.controls-hidden .control-tab {
    pointer-events: all;
    opacity: 1;
}

.control-tab {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 60px;
    background: rgba(var(--slide-bg-rgb), 0.8);
    backdrop-filter: blur(10px);
    border-radius: 10px 0 0 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2em;
    cursor: pointer;
    border: 1px solid var(--border-color);
    border-right: none;
    opacity: 0;
    transition: opacity 0.3s ease, background 0.2s ease;
}

.top-controls.controls-hidden .control-tab {
    opacity: 0.7;
}

.control-tab:hover {
    background: rgba(var(--slide-bg-rgb), 0.95);
    opacity: 1 !important;
}

.lecture-info {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1em;
    color: var(--text-primary);
    font-weight: 500;
}

/* Theme Toggle Switch */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
}

.theme-toggle-label {
    font-size: 0.9em;
    color: var(--text-primary);
    font-family: var(--font-body);
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.theme-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--arcade-cyan);
    transition: 0.4s;
    border-radius: 24px;
}

.theme-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}

input:checked + .theme-slider {
    background-color: var(--arcade-purple);
}

input:checked + .theme-slider:before {
    transform: translateX(26px);
}

/* Comparison tables with game grid */
.comparison-table {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.comparison-card {
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid;
    padding: 20px;
    position: relative;
    transition: all 0.3s ease;
}

.comparison-card.good {
    border-color: var(--arcade-green);
    box-shadow: 0 0 15px rgba(74, 222, 128, 0.3);
}

.comparison-card.bad {
    border-color: var(--arcade-red);
    box-shadow: 0 0 15px rgba(248, 113, 113, 0.3);
}

.comparison-card:hover {
    transform: translateY(-5px);
}

/* Emoji with game-like animation */
.emoji {
    display: inline-block;
    font-size: 1.3em;
    margin: 0 8px;
    animation: emojiFloat 3s ease-in-out infinite;
}

@keyframes emojiFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Home button styled as arcade button */
.home, .home a {
    font-family: var(--font-code);
    background: linear-gradient(180deg, var(--arcade-yellow) 0%, #facc15 100%);
    color: var(--arcade-black) !important;
    border: 2px solid #eab308;
    padding: 8px 16px;
    text-decoration: none;
    font-size: 1.1em;
    text-transform: uppercase;
    box-shadow: 
        0 3px 0 #ca8a04,
        0 5px 10px rgba(0, 0, 0, 0.3);
    transition: all 0.1s ease;
}

.home:hover {
    transform: translateY(1px);
    box-shadow: 
        0 2px 0 #ca8a04,
        0 3px 5px rgba(0, 0, 0, 0.3);
}

/* Progress indicators */
.slide-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--arcade-green), var(--arcade-cyan));
    transition: width 0.3s ease;
    z-index: 15;
}

/* ========================================
   GLOBAL LECTURE-SPECIFIC COMPONENTS
   Common classes used across lecture files
   ======================================== */

/* Grid Layouts */
.roadmap-grid,
.knowledge-grid,
.comparison-table {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

/* Card Components */
.pattern-card,
.state-card,
.knowledge-card,
.comparison-card {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 8px;
    border-left: 5px solid var(--border-color);
    transition: transform 0.2s, box-shadow 0.2s;
    color: var(--text-primary);
}

.pattern-card h3,
.state-card h3,
.knowledge-card h3,
.comparison-card h3 {
    color: var(--text-primary);
    margin-bottom: 10px;
}

.pattern-card p,
.pattern-card li,
.state-card p,
.state-card li,
.knowledge-card p,
.knowledge-card li,
.comparison-card p,
.comparison-card li {
    color: var(--text-primary);
}

.pattern-card:hover,
.state-card:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 8px var(--shadow-color);
}

[data-theme="dark"] .pattern-card:hover,
[data-theme="dark"] .state-card:hover {
    border-left-color: var(--arcade-cyan);
}

/* Diagram Containers */
.singleton-diagram,
.state-diagram,
.uml-diagram,
.gdd-preview {
    background: var(--bg-secondary);
    border: 3px solid var(--ocu-true-blue);
    padding: 25px;
    border-radius: 8px;
    margin: 20px 0;
    text-align: center;
    color: var(--text-primary);
}

.singleton-diagram h3,
.state-diagram h3,
.uml-diagram h3,
.gdd-preview h3 {
    color: var(--text-primary);
}

/* Message Boxes - Problem/Warning */
.problem-box,
.limitation-box {
    background: rgba(255, 243, 205, 0.9);
    border-left: 4px solid #ff6b6b;
    padding: 20px;
    margin: 20px 0;
    border-radius: 8px;
    color: #333;
}

[data-theme="dark"] .problem-box,
[data-theme="dark"] .limitation-box {
    background: rgba(139, 69, 19, 0.3);
    color: var(--text-primary);
    border-left-color: #ff9800;
}

.problem-box h3,
.limitation-box h3 {
    color: #d32f2f;
    margin-bottom: 10px;
}

[data-theme="dark"] .problem-box h3,
[data-theme="dark"] .limitation-box h3 {
    color: #ff9800;
}

/* Message Boxes - Solution/Success */
.solution-box {
    background: rgba(212, 237, 218, 0.9);
    border-left: 4px solid #28a745;
    padding: 20px;
    margin: 20px 0;
    border-radius: 8px;
    color: #333;
}

[data-theme="dark"] .solution-box {
    background: rgba(34, 139, 34, 0.2);
    color: var(--text-primary);
    border-left-color: var(--arcade-green);
}

.solution-box h3 {
    color: #28a745;
    margin-bottom: 10px;
}

[data-theme="dark"] .solution-box h3 {
    color: var(--arcade-green);
}

/* Implementation and Step Boxes */
.implementation-steps,
.pattern-list {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--ocu-cyan);
    color: var(--text-primary);
}

/* Homework/Assignment Boxes */
.homework-box {
    background: linear-gradient(135deg, var(--ocu-true-blue) 0%, var(--ocu-cyan) 100%);
    color: white;
    padding: 25px;
    border-radius: 8px;
    margin: 20px 0;
}

.homework-box h3,
.homework-box p,
.homework-box li {
    color: white !important;
}

/* Unity Feature Boxes */
.unity-feature,
.unity-version {
    background: linear-gradient(135deg, #222c37 0%, #1a1a2e 100%);
    color: #00bfdf;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    font-family: 'Courier New', monospace;
}

/* State Flow Diagrams */
.state-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin: 20px 0;
    flex-wrap: wrap;
}

.state-box {
    background: var(--ocu-true-blue);
    color: white;
    padding: 15px 25px;
    border-radius: 8px;
    font-weight: bold;
}

[data-theme="dark"] .state-box {
    background: var(--arcade-purple);
}

.arrow {
    font-size: 2em;
    color: var(--ocu-gold);
}

/* Text Styling Within Components */
.chapter-num {
    color: var(--ocu-gold);
    font-weight: bold;
    font-size: 0.9em;
}

.pattern-name {
    color: var(--ocu-true-blue);
    font-weight: bold;
    font-size: 1.1em;
    margin: 5px 0;
}

[data-theme="dark"] .pattern-name {
    color: var(--arcade-cyan);
}

/* Comparison Cards with Good/Bad States */
.comparison-card.good {
    border-left-color: var(--arcade-green);
}

.comparison-card.bad {
    border-left-color: var(--arcade-red);
}

.comparison-card.warning {
    border-left-color: var(--arcade-yellow);
}

/* Responsive design */
@media (max-width: 768px) {
    .slide {
        padding: 30px;
    }

    .slide h1 {
        font-size: 1.5em;
    }

    .navigation {
        bottom: 20px;
        right: 20px;
        padding: 10px 15px;
    }

    button {
        padding: 10px 20px;
        font-size: 0.9em;
    }

    .top-controls {
        top: 10px;
        right: 10px;
        padding: 8px 15px;
        font-size: 0.9em;
    }

    .control-tab,
    .nav-tab {
        width: 30px;
        height: 50px;
        font-size: 1em;
    }

    .roadmap-grid,
    .knowledge-grid,
    .comparison-table {
        grid-template-columns: 1fr;
    }
}

/* Browser compatibility fallback for backdrop-filter */
@supports not (backdrop-filter: blur(10px)) {
    .top-controls,
    .navigation,
    .control-tab,
    .nav-tab {
        background: rgba(var(--slide-bg-rgb), 0.95) !important;
    }
}