/* ============================================================================
   DINNERBONE PORTFOLIO - PREMIUM DESIGN SYSTEM
   Dark Modern Theme | Cold Palette (Purple/Blue/Gray) | Subtle Glow
   ============================================================================ */

:root {
    /* Color Palette - Cold & Professional */
    --bg-primary: #0a0e27;
    --bg-secondary: #141829;
    --bg-tertiary: #1e2139;
    --bg-accent: #252d45;
    
    --text-primary: #f0f2f5;
    --text-secondary: #c5c7cf;
    --text-tertiary: #8a8d99;
    
    --accent-purple: #a78bfa;
    --accent-purple-dark: #7c3aed;
    --accent-blue: #60a5fa;
    --accent-blue-dark: #2563eb;
    --accent-cyan: #22d3ee;
    
    --border-light: #2d3548;
    --border-dark: #1a1f38;
    
    --glow-purple: rgba(167, 139, 250, 0.15);
    --glow-blue: rgba(96, 165, 250, 0.15);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    
    /* Typography */
    --font-display: 'Segoe UI', 'Roboto', sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    
    /* Spacing System */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Transitions */
    --transition-fast: 120ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================================
   RESET & BASE STYLES
   ============================================================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ============================================================================
   TYPOGRAPHY
   ============================================================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

h1 { font-size: 3.5rem; font-weight: 700; }
h2 { font-size: 2.5rem; font-weight: 700; }
h3 { font-size: 1.875rem; font-weight: 600; }
h4 { font-size: 1.5rem; font-weight: 600; }
h5 { font-size: 1.25rem; font-weight: 600; }
h6 { font-size: 1.125rem; font-weight: 600; }

p { color: var(--text-secondary); margin-bottom: var(--space-md); }

a {
    color: var(--accent-purple);
    text-decoration: none;
    transition: all var(--transition-base);
}

a:hover {
    color: var(--accent-cyan);
    text-shadow: 0 0 12px var(--glow-purple);
}

/* ============================================================================
   LAYOUT UTILITIES
   ============================================================================ */

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.section {
    padding: var(--space-4xl) 0;
    position: relative;
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-light), transparent);
}

.section:first-child::before {
    display: none;
}

/* ============================================================================
   HEADER & NAVIGATION
   ============================================================================ */

header {
    background: rgba(20, 24, 41, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    padding: var(--space-lg) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all var(--transition-base);
}

.logo img {
    width: 36px;
    height: 36px;
    filter: drop-shadow(0 0 8px var(--glow-purple));
    transition: filter var(--transition-base);
}

.logo:hover img {
    filter: drop-shadow(0 0 16px var(--glow-purple));
}

.lang-toggle {
    display: flex;
    gap: var(--space-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: var(--space-sm);
}

.lang-btn {
    padding: var(--space-sm) var(--space-lg);
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 6px;
    transition: all var(--transition-base);
}

.lang-btn.active {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    color: var(--text-primary);
    box-shadow: 0 0 16px var(--glow-purple);
}

.lang-btn:hover:not(.active) {
    color: var(--text-primary);
    background: var(--bg-accent);
}

/* ============================================================================
   HERO SECTION
   ============================================================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4xl) var(--space-xl);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 60%;
    height: 150%;
    background: radial-gradient(circle, var(--glow-purple) 0%, transparent 70%);
    opacity: 0.08;
    animation: drift 20s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -20%;
    width: 50%;
    height: 120%;
    background: radial-gradient(circle, var(--glow-blue) 0%, transparent 70%);
    opacity: 0.06;
    animation: drift 25s ease-in-out infinite reverse;
}

@keyframes drift {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(40px, -40px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
}

.hero-logo {
    width: 140px;
    height: 140px;
    margin: 0 auto var(--space-3xl);
    filter: drop-shadow(0 0 24px var(--glow-purple));
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { filter: drop-shadow(0 0 24px var(--glow-purple)); }
    50% { filter: drop-shadow(0 0 40px var(--glow-purple)); }
}

.hero h1 {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-md);
    font-size: 3.5rem;
}

.hero .headline {
    font-size: 1.375rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    font-weight: 500;
}

.hero .description {
    font-size: 1.125rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-3xl);
    line-height: 1.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-ctas {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button {
    padding: var(--space-md) var(--space-2xl);
    border: 2px solid var(--accent-purple);
    background: transparent;
    color: var(--accent-purple);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    transition: all var(--transition-base);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    transition: left var(--transition-base);
    z-index: -1;
}

.cta-button:hover {
    color: var(--text-primary);
    border-color: var(--accent-blue);
    box-shadow: 0 0 24px var(--glow-purple);
    transform: translateY(-2px);
}

.cta-button:hover::before {
    left: 0;
}

/* ============================================================================
   SKILL MATRIX SECTION
   ============================================================================ */

.skill-matrix {
    padding: var(--space-4xl) 0;
}

.skill-matrix h2 {
    text-align: center;
    margin-bottom: var(--space-3xl);
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-2xl);
}

.skill-card {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: var(--space-xl);
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--glow-purple), transparent);
    transition: left var(--transition-slow);
}

.skill-card:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 0 24px var(--glow-purple), var(--shadow-md);
    transform: translateY(-6px);
}

.skill-card:hover::before {
    left: 100%;
}

.skill-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.skill-status {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--glow-purple);
    color: var(--accent-purple);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-lg);
}

.skill-bar-container {
    background: var(--bg-accent);
    height: 6px;
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: var(--space-md);
}

.skill-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue));
    border-radius: 3px;
    transition: width var(--transition-slow);
    box-shadow: 0 0 12px var(--glow-purple);
}

.skill-level {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-lg);
    font-weight: 500;
}

.skill-comment {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    line-height: 1.6;
    opacity: 0;
    max-height: 0;
    transition: all var(--transition-base);
}

.skill-card:hover .skill-comment {
    opacity: 1;
    max-height: 120px;
}

/* ============================================================================
   KNOWLEDGE LAB SECTION
   ============================================================================ */

.knowledge-lab {
    padding: var(--space-4xl) 0;
}

.knowledge-lab h2 {
    text-align: center;
    margin-bottom: var(--space-3xl);
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-2xl);
}

.knowledge-column {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
}

.knowledge-column h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.knowledge-item {
    padding: var(--space-md);
    background: var(--bg-accent);
    border-left: 3px solid var(--accent-purple);
    margin-bottom: var(--space-md);
    border-radius: 6px;
    transition: all var(--transition-base);
    font-size: 0.95rem;
}

.knowledge-item:hover {
    border-left-color: var(--accent-cyan);
    box-shadow: 0 0 12px var(--glow-purple);
    transform: translateX(6px);
    background: var(--bg-tertiary);
}

/* ============================================================================
   PROJECTS SECTION
   ============================================================================ */

.projects {
    padding: var(--space-4xl) 0;
}

.projects h2 {
    text-align: center;
    margin-bottom: var(--space-3xl);
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-2xl);
}

.project-card {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border: 1px solid var(--border-light);
    border-radius: 12px;
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    height: 100%;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.project-card.featured {
    border-color: var(--accent-purple);
    box-shadow: 0 0 24px var(--glow-purple), var(--shadow-md);
}

.project-card:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 0 24px var(--glow-purple), var(--shadow-md);
    transform: translateY(-8px);
}

.project-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    color: var(--text-primary);
    padding: var(--space-xs) var(--space-md);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    z-index: 10;
}

.project-placeholder {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    font-size: 0.875rem;
    position: relative;
    overflow: hidden;
}

.project-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, var(--glow-purple) 0%, transparent 50%);
    opacity: 0.4;
}

.project-content {
    padding: var(--space-xl);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.project-description {
    font-size: 0.95rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-lg);
    flex-grow: 1;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.project-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--glow-purple);
    color: var(--accent-purple);
    border-radius: 6px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.project-status {
    font-size: 0.875rem;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

/* ============================================================================
   TIMELINE SECTION
   ============================================================================ */

.timeline {
    padding: var(--space-4xl) 0;
}

.timeline h2 {
    text-align: center;
    margin-bottom: var(--space-3xl);
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.timeline-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline-container::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent-purple), var(--accent-blue), transparent);
}

.timeline-item {
    margin-bottom: var(--space-3xl);
    position: relative;
}

.timeline-item:nth-child(odd) {
    padding-right: 52%;
}

.timeline-item:nth-child(even) {
    padding-left: 52%;
    text-align: right;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 16px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    border: 3px solid var(--bg-primary);
    border-radius: 50%;
    top: 0;
    box-shadow: 0 0 16px var(--glow-purple);
    z-index: 10;
}

.timeline-content {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: var(--space-xl);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.timeline-content:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 0 24px var(--glow-purple), var(--shadow-md);
}

.timeline-year {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-sm);
}

.timeline-description {
    font-size: 0.95rem;
    color: var(--text-tertiary);
    line-height: 1.6;
}

/* ============================================================================
   CREDIBILITY SECTION
   ============================================================================ */

.credibility {
    padding: var(--space-4xl) 0;
}

.credibility h2 {
    text-align: center;
    margin-bottom: var(--space-3xl);
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-2xl);
}

.metric-card {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: var(--space-2xl);
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.metric-card:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 0 24px var(--glow-purple), var(--shadow-md);
    transform: translateY(-6px);
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-md);
}

.metric-label {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

/* ============================================================================
   CONTACT SECTION
   ============================================================================ */

.contact {
    padding: var(--space-4xl) 0;
    text-align: center;
}

.contact h2 {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-xl);
}

.contact-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.email-box {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: var(--space-2xl);
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    box-shadow: var(--shadow-md);
}

.email-address {
    font-size: 1.125rem;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    flex-grow: 1;
    word-break: break-all;
    font-weight: 500;
}

.copy-btn {
    padding: var(--space-md) var(--space-lg);
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    color: var(--text-primary);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-base);
    white-space: nowrap;
    font-size: 0.95rem;
    box-shadow: 0 0 16px var(--glow-purple);
}

.copy-btn:hover {
    box-shadow: 0 0 24px var(--glow-purple);
    transform: scale(1.05);
}

.copy-feedback {
    margin-top: var(--space-lg);
    font-size: 0.875rem;
    color: var(--accent-cyan);
    opacity: 0;
    transition: opacity var(--transition-base);
    font-weight: 500;
}

.copy-feedback.show {
    opacity: 1;
}

/* ============================================================================
   FOOTER
   ============================================================================ */

footer {
    background: rgba(20, 24, 41, 0.8);
    border-top: 1px solid var(--border-light);
    padding: var(--space-2xl) 0;
    text-align: center;
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

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

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 1.875rem; }
    h3 { font-size: 1.5rem; }
    
    .container {
        padding: 0 var(--space-lg);
    }
    
    .hero {
        min-height: auto;
        padding: var(--space-3xl) var(--space-lg);
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-ctas {
        flex-direction: column;
    }
    
    .cta-button {
        width: 100%;
    }
    
    .timeline-container::before {
        left: 0;
    }
    
    .timeline-item {
        padding-left: 40px !important;
        padding-right: 0 !important;
        text-align: left !important;
    }
    
    .timeline-dot {
        left: 0;
        transform: translateX(-8px);
    }
    
    .email-box {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .copy-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    
    .header-content {
        padding: 0 var(--space-lg);
    }
    
    .logo {
        font-size: 1.25rem;
    }
    
    .hero-logo {
        width: 100px;
        height: 100px;
    }
    
    .hero .description {
        font-size: 1rem;
    }
    
    .skills-grid,
    .knowledge-grid,
    .projects-grid,
    .metrics-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================================
   ACCESSIBILITY & PREFERENCES
   ============================================================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media print {
    body {
        background: white;
        color: black;
    }
    
    header, footer, .lang-toggle {
        display: none;
    }
}