/**
 * Solid Human Theme for Reveal.js
 * Dark Mode with Heart - Human-centered dark presentation theme
 * 
 * Design Philosophy:
 * - Dark backgrounds for presentation environments (practical)
 * - Warm glowing colors instead of cold tech colors (friendly)
 * - Soft glows instead of harsh shadows (welcoming)
 * - Generous spacing for comfort
 * - Playful interactions for delight
 * - Inclusive and welcoming aesthetics
 * 
 * Perfect for:
 * - Auditorium presentations with projectors
 * - Conference rooms with large displays
 * - Evening sessions and dimmed lighting
 * - Long-form presentations (easier on eyes)
 * 
 * Usage:
 * <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/reveal.js@6.0.0/dist/reveal.css">
 * <link rel="stylesheet" href="../design-system/themes/solid-symposium.css">
 * 
 * Version: 3.0.0 (Human-Centered Edition - Dark Mode with Heart)
 * Author: Solid Community
 * License: Same as main project
 */

/* ==================== */
/* Import Design System */
/* ==================== */

@import url('tokens.css');
@import url('components.css');

/* ==================== */
/* Reveal.js Base Setup - Dark & Warm */
/* ==================== */

.reveal-viewport {
    background: var(--color-bg-primary);
    background-image: var(--gradient-soft-bg);
}

.reveal-viewport::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: var(--gradient-network-bg);
    opacity: 1;
    z-index: 0;
    pointer-events: none;
}

.reveal {
    font-family: var(--font-family-body);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-normal);
    color: var(--color-text-primary);
    position: relative;
    z-index: 1;
}

/* ==================== */
/* Typography - Bright, glowing, readable */
/* ==================== */

.reveal h1,
.reveal h2,
.reveal h3,
.reveal h4,
.reveal h5,
.reveal h6 {
    margin: 0 0 var(--spacing-6) 0;
    color: var(--color-text-heading);
    font-family: var(--font-family-headline);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
    text-transform: none;
    text-shadow: var(--shadow-text);
    word-wrap: break-word;
}

.reveal h1 {
    font-size: var(--font-size-5xl);
    line-height: 1.1;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-8);
    filter: drop-shadow(0 0 24px rgba(167, 139, 250, 0.4));
}

.reveal h2 {
    font-size: var(--font-size-4xl);
    color: var(--color-primary-light);
    margin-bottom: var(--spacing-7);
    text-shadow: 0 0 16px rgba(167, 139, 250, 0.3);
}

.reveal h3 {
    font-size: var(--font-size-3xl);
    color: var(--color-text-heading);
}

.reveal h4 {
    font-size: var(--font-size-2xl);
    color: var(--color-text-heading);
}

.reveal h5 {
    font-size: var(--font-size-xl);
}

.reveal h6 {
    font-size: var(--font-size-lg);
}

/* Paragraph spacing */
.reveal p {
    margin: var(--spacing-6) 0;
    line-height: var(--line-height-relaxed);
    color: var(--color-text-body);
}

/* Strong emphasis */
.reveal strong,
.reveal b {
    font-weight: var(--font-weight-bold);
    color: var(--color-primary-lighter);
}

/* Emphasis */
.reveal em {
    font-style: italic;
    color: var(--color-secondary-light);
}

/* ==================== */
/* Links - Glowing and inviting */
/* ==================== */

.reveal a {
    color: var(--color-primary-light);
    text-decoration: none;
    transition: all var(--transition-base);
    border-bottom: 2px solid var(--color-primary-light);
    font-weight: var(--font-weight-medium);
}

.reveal a:hover {
    color: var(--color-primary-lighter);
    border-bottom-color: var(--color-primary-lighter);
    text-shadow: 0 0 12px rgba(167, 139, 250, 0.6);
}

/* ==================== */
/* Lists - Glowing and friendly */
/* ==================== */

.reveal ul,
.reveal ol {
    display: block;
    margin: var(--spacing-7) 0;
    padding-left: var(--spacing-9);
    text-align: left;
}

.reveal ul {
    list-style-type: none;
}

.reveal ul li {
    position: relative;
    margin: var(--spacing-4) 0;
    line-height: var(--line-height-relaxed);
    color: var(--color-text-body);
}

.reveal ul li::before {
    content: "●";
    position: absolute;
    left: -1.5em;
    color: var(--color-primary-light);
    font-size: 0.8em;
    filter: drop-shadow(0 0 6px rgba(167, 139, 250, 0.5));
}

.reveal ol {
    list-style-type: none;
    counter-reset: list-counter;
}

.reveal ol li {
    margin: var(--spacing-4) 0;
    line-height: var(--line-height-relaxed);
    counter-increment: list-counter;
    position: relative;
    color: var(--color-text-body);
}

.reveal ol li::before {
    content: counter(list-counter);
    position: absolute;
    left: -2em;
    background: rgba(167, 139, 250, 0.2);
    color: var(--color-primary-lighter);
    width: 1.5em;
    height: 1.5em;
    border-radius: var(--radius-full);
    border: 2px solid var(--color-primary-light);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-sm);
    box-shadow: 0 0 12px rgba(167, 139, 250, 0.4);
}

/* Nested lists */
.reveal ul ul,
.reveal ul ol,
.reveal ol ol,
.reveal ol ul {
    margin-top: var(--spacing-3);
    margin-bottom: var(--spacing-3);
}

/* ==================== */
/* Blockquotes - Glowing and warm */
/* ==================== */

.reveal blockquote {
    display: block;
    position: relative;
    width: 85%;
    margin: var(--spacing-9) auto;
    padding: var(--spacing-7) var(--spacing-8);
    font-style: italic;
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.1) 0%, rgba(103, 232, 249, 0.1) 100%);
    backdrop-filter: blur(10px);
    border-left: 6px solid var(--color-primary-light);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-glow);
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

.reveal blockquote::before {
    content: '"';
    position: absolute;
    top: var(--spacing-4);
    left: var(--spacing-5);
    font-size: var(--font-size-6xl);
    color: var(--color-primary-light);
    font-family: Georgia, serif;
    line-height: 0;
    filter: drop-shadow(0 0 16px rgba(167, 139, 250, 0.6));
}

.reveal blockquote p:first-child,
.reveal blockquote p:last-child {
    margin: 0;
}

/* ==================== */
/* Code - Glowing, approachable */
/* ==================== */

.reveal code {
    font-family: var(--font-family-mono);
    background: rgba(167, 139, 250, 0.15);
    padding: 0.2em 0.5em;
    border-radius: var(--radius-base);
    color: var(--color-primary-lighter);
    font-size: 0.9em;
    border: 1px solid var(--color-primary-light);
}


.reveal pre code {
    display: block;
    padding: 0;
    background: transparent;
    overflow: auto;
    max-height: none;
    word-wrap: normal;
    color: var(--color-text-primary);
    font-size: 0.85em;
    line-height: var(--line-height-relaxed);
    border: none;
}

/* ==================== */
/* Tables - Glowing and organized */
/* ==================== */

.reveal table {
    margin: var(--spacing-9) auto;
    border-collapse: separate;
    border-spacing: 0;
    width: 90%;
    max-width: 100%;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--color-border-accent);
    backdrop-filter: blur(10px);
}

.reveal table th {
    font-weight: var(--font-weight-bold);
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.3) 0%, rgba(103, 232, 249, 0.3) 100%);
    color: var(--color-text-heading);
    padding: var(--spacing-5) var(--spacing-6);
    text-align: left;
    font-size: var(--font-size-base);
    border-bottom: 2px solid var(--color-border-accent);
}

.reveal table td {
    padding: var(--spacing-5) var(--spacing-6);
    border-bottom: 1px solid var(--color-border-light);
    background: rgba(28, 25, 23, 0.3);
    color: var(--color-text-body);
}

.reveal table tbody tr:hover {
    background: rgba(167, 139, 250, 0.1);
}

.reveal table tbody tr:last-child td {
    border-bottom: none;
}

.reveal table tbody tr:nth-child(even) {
    background: rgba(28, 25, 23, 0.5);
}

.reveal table tbody tr:nth-child(even):hover {
    background: rgba(167, 139, 250, 0.15);
}

/* ==================== */
/* Sections & Slides    */
/* ==================== */

.reveal .slides section {
    height: 100%;
    padding: var(--spacing-6);
}

.reveal .slides section.present {
    min-height: 100vh;
}

/* ==================== */
/* Backgrounds - Warm, glowing, atmospheric */
/* ==================== */

.reveal .slide-background {
    background: var(--color-bg-primary);
}

/* Warm glowing atmospheric background */
.reveal .network-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: var(--gradient-network-bg);
    z-index: -1;
    opacity: 1;
}

/* ==================== */
/* Progress Bar - Glowing progress */
/* ==================== */

.reveal .progress {
    background: rgba(68, 64, 60, 0.5);
    color: var(--color-primary);
    height: 6px;
}

.reveal .progress span {
    background: var(--gradient-primary);
    transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
    box-shadow: 0 0 16px rgba(167, 139, 250, 0.6);
}

/* ==================== */
/* Controls - Friendly and clear */
/* ==================== */

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

.reveal .controls button {
    opacity: 0.6;
    transition: all var(--transition-bounce);
}

.reveal .controls button:hover {
    opacity: 1;
    transform: scale(1.2);
}

/* ==================== */
/* Slide Numbers - Soft glowing indicator */
/* ==================== */

.reveal .slide-number {
    color: var(--color-text-secondary);
    background: rgba(41, 37, 36, 0.8);
    backdrop-filter: blur(10px);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border-accent);
}

/* ==================== */
/* Fragments - Playful animations */
/* ==================== */

.reveal .fragment {
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.reveal .fragment.visible {
    opacity: 1;
}

/* Fragment animations */
.reveal .fragment.fade-in {
    opacity: 0;
}

.reveal .fragment.fade-in.visible {
    opacity: 1;
}

.reveal .fragment.fade-up {
    transform: translateY(40px);
    opacity: 0;
}

.reveal .fragment.fade-up.visible {
    transform: translateY(0);
    opacity: 1;
}

.reveal .fragment.bounce-in {
    transform: scale(0.3);
    opacity: 0;
}

.reveal .fragment.bounce-in.visible {
    transform: scale(1);
    opacity: 1;
    animation: bounceIn 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ==================== */
/* Speaker Notes        */
/* ==================== */

.reveal aside.notes {
    display: none;
}

/* ==================== */
/* Print Styling - Clean and readable */
/* ==================== */

@media print {
    .reveal {
        background: white;
        color: var(--color-text-primary);
    }
    
    .reveal h1,
    .reveal h2,
    .reveal h3,
    .reveal h4,
    .reveal h5,
    .reveal h6 {
        color: var(--color-primary-dark);
        text-shadow: none;
    }
    
    .reveal a {
        color: var(--color-primary-dark);
        text-decoration: underline;
    }
    
    .reveal .slide-background {
        background: white !important;
    }
    
    .reveal .slide-background::before {
        display: none;
    }
}

/* ==================== */
/* Accessibility - Inclusive by design */
/* ==================== */

.reveal :focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

.reveal :focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

/* Screen reader only content */
.reveal .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ==================== */
/* Utilities            */
/* ==================== */

/* Text alignment */
.reveal .text-left {
    text-align: left;
}

.reveal .text-center {
    text-align: center;
}

.reveal .text-right {
    text-align: right;
}

/* Text colors */
.reveal .text-primary {
    color: var(--color-primary) !important;
}

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

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

/* Font sizes */
.reveal .text-small {
    font-size: var(--font-size-sm) !important;
}

.reveal .text-large {
    font-size: var(--font-size-lg) !important;
}

.reveal .text-xl {
    font-size: var(--font-size-xl) !important;
}

/* Margins */
.reveal .mt-0 { margin-top: 0 !important; }
.reveal .mt-1 { margin-top: var(--spacing-2) !important; }
.reveal .mt-2 { margin-top: var(--spacing-4) !important; }
.reveal .mt-3 { margin-top: var(--spacing-6) !important; }
.reveal .mt-4 { margin-top: var(--spacing-8) !important; }

.reveal .mb-0 { margin-bottom: 0 !important; }
.reveal .mb-1 { margin-bottom: var(--spacing-2) !important; }
.reveal .mb-2 { margin-bottom: var(--spacing-4) !important; }
.reveal .mb-3 { margin-bottom: var(--spacing-6) !important; }
.reveal .mb-4 { margin-bottom: var(--spacing-8) !important; }

/* ==================== */
/* Theme-Specific Enhancements */
/* ==================== */

/* Ensure design system components work beautifully with reveal.js */
.reveal .feature-card,
.reveal .highlight-box,
.reveal .terminal-window {
    margin-left: auto;
    margin-right: auto;
    margin-top: var(--spacing-8);
    margin-bottom: var(--spacing-8);
}

/* Ensure level badges are visible and friendly */
.reveal .level-badge {
    display: inline-block;
}

/* Ensure icons have proper spacing and personality */
.reveal .icon {
    display: inline-block;
    margin-right: 0.4em;
    vertical-align: middle;
}

/* Ensure gradient text is vibrant */
.reveal .gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

/* Add a welcoming emoji helper class */
.reveal .emoji {
    font-size: 1.2em;
    vertical-align: middle;
    display: inline-block;
}

.reveal .emoji-large {
    font-size: var(--font-size-4xl);
    display: block;
    margin: var(--spacing-6) auto;
}