/**
 * Custom Academic Theme for Thesis Defense
 * Optimized for King Abdulaziz University Master's Thesis Presentation
 */

@import url('https://fonts.googleapis.com/css2?family=Libre+Baskerville:wght@400;700&family=Roboto:wght@300;400;500;700&family=Fira+Code:wght@400;500&display=swap');

:root {
    /* Color Palette - King Abdulaziz University Branding */
    --color-primary: #006747;        /* KAU Deep Green - Primary Brand Color */
    --color-secondary: #D4AF37;      /* Gold - Emphasis, Prestige */
    --color-accent: #00A859;         /* Lighter Green - Accent, Technical */
    --color-background: #F8F9FA;     /* Light Gray Background */
    --color-text: #2D3748;           /* Dark Gray Text */
    --color-heading: #006747;        /* KAU Green for headings */
    --color-link: #00A859;           /* Light Green for links */
    --color-code-bg: #1E3A2E;        /* Dark Green for code blocks */
    --color-success: #28a745;        /* Green for positive results */
    --color-warning: #ffc107;        /* Amber for warnings */
    --color-danger: #dc3545;         /* Red for errors/challenges */

    /* Typography */
    --font-heading: 'Libre Baskerville', Georgia, serif;
    --font-body: 'Roboto', 'Open Sans', sans-serif;
    --font-code: 'Fira Code', 'JetBrains Mono', monospace;

    /* Font Sizes (optimized for projection) */
    --font-size-h1: 3rem;            /* 48px */
    --font-size-h2: 2.25rem;         /* 36px */
    --font-size-h3: 1.75rem;         /* 28px */
    --font-size-body: 1.5rem;        /* 24px */
    --font-size-small: 1.1rem;       /* 17.6px */
    --font-size-code: 1.25rem;       /* 20px */
}

/* Base Reveal.js Overrides */
.reveal {
    font-family: var(--font-body);
    font-size: var(--font-size-body);
    font-weight: 300;
    color: var(--color-text);
}

.reveal * {
    max-width: 100%;
}

.reveal .slides section * {
    box-sizing: border-box;
}

.reveal .slides {
    text-align: left;
}

/* Background Colors */
.reveal .slides > section {
    background-color: var(--color-background);
    padding: 1.5rem;
    height: 100%;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}

/* Title Slides (dark background) */
.reveal .slides > section.title-slide {
    background: linear-gradient(135deg, var(--color-primary) 0%, #00527a 100%);
    color: #ffffff;
    text-align: center;
}

/* Headings */
.reveal h1,
.reveal h2,
.reveal h3,
.reveal h4,
.reveal h5,
.reveal h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-heading);
    text-transform: none;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.reveal h1 {
    font-size: var(--font-size-h1);
    margin-bottom: 2rem;
}

.reveal h2 {
    font-size: var(--font-size-h2);
    border-bottom: 3px solid var(--color-secondary);
    padding-bottom: 0.5rem;
}

.reveal h3 {
    font-size: var(--font-size-h3);
    color: var(--color-accent);
}

/* Title slide headings (white text) */
.reveal .title-slide h1,
.reveal .title-slide h2,
.reveal .title-slide h3 {
    color: #ffffff;
    border-bottom: none;
}

/* Paragraphs and Text */
.reveal p {
    margin: 1rem 0;
    line-height: 1.6;
    max-width: 100%;
    word-wrap: break-word;
}

.reveal strong {
    color: var(--color-primary);
    font-weight: 700;
}

.reveal em {
    color: var(--color-accent);
    font-style: italic;
}

/* Links */
.reveal a {
    color: var(--color-link);
    text-decoration: none;
    transition: color 0.3s ease;
}

.reveal a:hover {
    color: var(--color-secondary);
    text-decoration: underline;
}

/* Lists */
.reveal ul,
.reveal ol {
    margin: 1rem 0 1rem 2rem;
    max-width: calc(100% - 2rem);
}

.reveal ul li,
.reveal ol li {
    margin: 0.75rem 0;
    line-height: 1.5;
}

.reveal ul ul,
.reveal ol ol {
    margin: 0.5rem 0 0.5rem 1.5rem;
}

/* Code Blocks */
.reveal pre {
    margin: 1.5rem 0;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.reveal code {
    font-family: var(--font-code);
    font-size: var(--font-size-code);
    background-color: var(--color-code-bg);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.reveal pre code {
    display: block;
    padding: 1.5rem;
    overflow: auto;
    max-height: 500px;
    max-width: 100%;
    line-height: 1.4;
    word-wrap: break-word;
}

/* Tables */
.reveal table {
    margin: 1.5rem auto;
    border-collapse: collapse;
    font-size: var(--font-size-small);
    width: 100%;
    max-width: 100%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    table-layout: fixed;
    word-wrap: break-word;
}

.reveal table th {
    background-color: var(--color-primary);
    color: #ffffff;
    padding: 1rem;
    font-weight: 700;
    text-align: left;
    border-bottom: 2px solid var(--color-secondary);
}

.reveal table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #ddd;
}

.reveal table tr:nth-child(even) {
    background-color: #f9f9f9;
}

.reveal table tr:hover {
    background-color: #e8f4f8;
}

/* Highlight statistical significance */
.reveal table td.significant {
    background-color: #d4edda;
    font-weight: 700;
    color: var(--color-success);
}

/* Citations */
.citation {
    font-size: var(--font-size-small);
    color: #666;
    font-style: italic;
    margin-top: 1rem;
    border-left: 3px solid var(--color-secondary);
    padding-left: 1rem;
}

/* Research Question Headers */
.rq-header {
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: #ffffff;
    padding: 1rem 2rem;
    border-radius: 8px;
    margin: 1.5rem 0;
    font-size: var(--font-size-h3);
    font-weight: 700;
    max-width: 100%;
    word-wrap: break-word;
}

/* Key Findings Boxes */
.key-finding {
    background-color: #fff3cd;
    border-left: 5px solid var(--color-secondary);
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    max-width: 100%;
    word-wrap: break-word;
}

.key-finding h4 {
    color: var(--color-secondary);
    margin-top: 0;
    margin-bottom: 0.75rem;
}

/* Statistics Display */
.stat-box {
    display: inline-block;
    background-color: var(--color-primary);
    color: #ffffff;
    padding: 1rem 1.5rem;
    margin: 0.5rem;
    border-radius: 8px;
    font-size: var(--font-size-h3);
    font-weight: 700;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

.stat-box .label {
    font-size: var(--font-size-small);
    font-weight: 400;
    display: block;
    margin-bottom: 0.25rem;
    opacity: 0.9;
}

/* Badges (for difficulty levels, languages, models) */
.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    margin: 0.25rem;
    border-radius: 20px;
    font-size: var(--font-size-small);
    font-weight: 500;
}

.badge-easy {
    background-color: var(--color-success);
    color: #ffffff;
}

.badge-medium {
    background-color: var(--color-warning);
    color: #000000;
}

.badge-hard {
    background-color: var(--color-danger);
    color: #ffffff;
}

.badge-language {
    background-color: var(--color-accent);
    color: #ffffff;
}

.badge-model {
    background-color: var(--color-primary);
    color: #ffffff;
}

/* University Logo Container */
.logo-container {
    text-align: center;
    margin: 2rem 0;
}

.logo-container img {
    max-height: 150px;
    margin: 0 1rem;
}

/* Author Information */
.author-info {
    text-align: center;
    margin: 2rem 0;
}

.author-info .name {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.author-info .role {
    font-size: 1.75rem;
    font-weight: 400;
    opacity: 0.9;
}

/* Comparison Layout (for Normal vs TDP) */
.comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin: 1.5rem 0;
    max-width: 100%;
    overflow: hidden;
}

.comparison-item {
    padding: 1.25rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    min-width: 0;
    word-wrap: break-word;
}

.comparison-item.normal {
    background-color: #fff;
    border: 2px solid #ccc;
}

.comparison-item.tdp {
    background-color: #e8f5e9;
    border: 2px solid var(--color-success);
}

.comparison-item h4 {
    margin-top: 0;
    text-align: center;
}

/* Chart Container */
.chart-container {
    position: relative;
    width: 90%;
    margin: 2rem auto;
    padding: 2rem;
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.chart-container canvas {
    max-height: 500px;
}

/* Image Styling */
.reveal img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Block Quotes */
.reveal blockquote {
    background-color: #f9f9f9;
    border-left: 5px solid var(--color-accent);
    padding: 1.5rem;
    margin: 1.5rem 0;
    font-style: italic;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Progress Bar */
.reveal .progress {
    background: rgba(0, 0, 0, 0.2);
    color: var(--color-secondary);
    height: 5px;
}

.reveal .progress span {
    background: var(--color-secondary);
}

/* Controls */
.reveal .controls {
    color: var(--color-primary);
}

.reveal .controls button {
    color: var(--color-primary);
}

/* Add spacing between left and right navigation arrows */
.reveal .controls .navigate-left {
    margin-right: 1.5rem !important;
}

.reveal .controls .navigate-right {
    margin-left: 0.5rem !important;
}

/* Slide Number */
.reveal .slide-number {
    color: var(--color-primary);
    font-size: 1rem;
    background-color: rgba(255, 255, 255, 0.8);
    padding: 0.5rem;
    border-radius: 4px;
}

/* Fragment Animations */
.reveal .fragment.highlight-current-blue {
    opacity: 1;
    visibility: inherit;
}

.reveal .fragment.highlight-current-blue.current-fragment {
    color: var(--color-primary);
    font-weight: 700;
}

/* Utility Classes */
.text-center {
    text-align: center !important;
}

.text-right {
    text-align: right !important;
}

.text-primary {
    color: var(--color-primary) !important;
}

.text-secondary {
    color: var(--color-secondary) !important;
}

.text-accent {
    color: var(--color-accent) !important;
}

.bg-primary {
    background-color: var(--color-primary) !important;
    color: #ffffff !important;
}

.bg-light {
    background-color: #ffffff !important;
}

.mt-2 {
    margin-top: 2rem !important;
}

.mb-2 {
    margin-bottom: 2rem !important;
}

/* Print/PDF Export Styling */
@media print {
    .reveal {
        font-size: 16px;
    }

    .reveal h1 {
        font-size: 2.5rem;
    }

    .reveal h2 {
        font-size: 2rem;
    }

    .reveal h3 {
        font-size: 1.5rem;
    }

    .chart-container {
        page-break-inside: avoid;
    }
}

/* PDF Export - preserve backgrounds and spacing */
html.print-pdf .reveal .slides > section {
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
    padding: 1.5rem 2.5rem !important;
}

html.print-pdf .reveal .slides > section.title-slide {
    background: linear-gradient(135deg, #006747 0%, #00527a 100%) !important;
    color: #ffffff !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
}