/**
 * Face Shape Detector - Premium Design System
 * A dark-mode, premium aesthetic with gold accents
 */

/* ===== CSS Variables ===== */
:root {
    /* Colors - Premium Dark Theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: #16161f;
    --bg-card-hover: #1e1e2a;

    /* Accent Colors */
    --accent-primary: #00d4ff;
    --accent-secondary: #7c3aed;
    --accent-gradient: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
    --accent-gold: #f5a623;
    --accent-glow: rgba(0, 212, 255, 0.3);

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-tertiary: rgba(255, 255, 255, 0.5);
    --text-muted: rgba(255, 255, 255, 0.4);

    /* Status Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Outfit', var(--font-primary);

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--accent-glow);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
}

/* ===== Base Reset ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== Typography ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 65ch;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-secondary);
}

/* ===== Container ===== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ===== Section ===== */
.section {
    padding: var(--space-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-header h2 {
    margin-bottom: var(--space-md);
}

.section-header p {
    margin: 0 auto;
    font-size: 1.2rem;
}

.section-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
}

/* ===== Gradient Text ===== */
.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px var(--accent-glow);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-large {
    padding: var(--space-lg) var(--space-2xl);
    font-size: 1.1rem;
    border-radius: var(--radius-lg);
}

.btn-icon {
    width: 24px;
    height: 24px;
}

/* ===== Cards ===== */
.card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}

/* ===== Grid ===== */
.grid {
    display: grid;
    gap: var(--space-xl);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-6 {
    grid-template-columns: repeat(6, 1fr);
}

@media (max-width: 992px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-6 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .grid-6 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== Floating Particles Background ===== */
.particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent-primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 15s infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }

    10% {
        opacity: 0.3;
    }

    90% {
        opacity: 0.3;
    }

    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
}

.header.scrolled {
    padding: var(--space-sm) 0;
    background: rgba(10, 10, 15, 0.95);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-desktop {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
}

.language-select {
    background: var(--bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: var(--space-sm) var(--space-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    outline: none;
}

.language-select:focus {
    border-color: var(--accent-primary);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 100px;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(0, 212, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(124, 58, 237, 0.1) 0%, transparent 40%),
        radial-gradient(ellipse at 20% 80%, rgba(0, 212, 255, 0.08) 0%, transparent 40%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-xl);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    color: var(--accent-primary);
    margin-bottom: var(--space-xl);
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

.hero-title {
    margin-bottom: var(--space-lg);
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Upload Area ===== */
.upload-area {
    background: var(--bg-card);
    border: 2px dashed rgba(0, 212, 255, 0.3);
    border-radius: var(--radius-xl);
    padding: var(--space-3xl);
    margin: var(--space-2xl) auto;
    max-width: 600px;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.upload-area::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.upload-area:hover {
    border-color: var(--accent-primary);
    transform: scale(1.02);
}

.upload-area:hover::before {
    opacity: 0.05;
}

.upload-area.drag-over {
    border-color: var(--accent-primary);
    background: rgba(0, 212, 255, 0.1);
}

.upload-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    background: var(--accent-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.upload-icon svg {
    width: 40px;
    height: 40px;
    stroke: white;
}

.upload-text {
    position: relative;
    z-index: 1;
}

.upload-text h3 {
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.upload-text p {
    font-size: 1rem;
    margin: 0 auto;
}

.upload-input {
    display: none;
}

/* ===== Stats Bar ===== */
.stats-bar {
    display: flex;
    justify-content: center;
    gap: var(--space-3xl);
    padding: var(--space-xl) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: var(--space-3xl);
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

@media (max-width: 768px) {
    .stats-bar {
        flex-wrap: wrap;
        gap: var(--space-xl);
    }

    .stat-value {
        font-size: 1.5rem;
    }
}

/* ===== How It Works ===== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    position: relative;
}

.steps-grid::before {
    content: '';
    position: absolute;
    top: 60px;
    left: 20%;
    right: 20%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), var(--accent-secondary), transparent);
    opacity: 0.3;
}

.step-card {
    text-align: center;
    padding: var(--space-xl);
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-lg);
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.step-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-md);
    color: var(--accent-primary);
}

.step-card h4 {
    margin-bottom: var(--space-sm);
}

.step-card p {
    font-size: 1rem;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .steps-grid {
        grid-template-columns: 1fr;
    }

    .steps-grid::before {
        display: none;
    }
}

/* ===== Face Shapes Section ===== */
.shapes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.shape-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    transition: all var(--transition-base);
    cursor: pointer;
}

.shape-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
}

.shape-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--space-lg);
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    transition: all var(--transition-base);
}

.shape-card:hover .shape-icon {
    background: rgba(0, 212, 255, 0.1);
    transform: scale(1.1);
}

.shape-image {
    width: 140px;
    height: 140px;
    margin: 0 auto var(--space-lg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(124, 58, 237, 0.1));
    border: 2px solid rgba(0, 212, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.shape-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.shape-card:hover .shape-image {
    border-color: var(--accent-primary);
    box-shadow: 0 0 30px var(--accent-glow);
}

.shape-card:hover .shape-image img {
    transform: scale(1.05);
}

.shape-name {
    font-size: 1.3rem;
    margin-bottom: var(--space-sm);
}

.shape-archetype {
    font-size: 0.9rem;
    color: var(--accent-primary);
    margin-bottom: var(--space-md);
}

.shape-description {
    font-size: 0.95rem;
    color: var(--text-tertiary);
}

@media (max-width: 992px) {
    .shapes-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .shapes-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== Features Section ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    transition: all var(--transition-base);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-4px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-md);
    background: rgba(0, 212, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

.feature-card h4 {
    font-size: 1.1rem;
    margin-bottom: var(--space-sm);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-tertiary);
    margin: 0;
}

@media (max-width: 992px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== FAQ Section ===== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 1.1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    color: var(--accent-primary);
}

.faq-icon {
    width: 24px;
    height: 24px;
    transition: transform var(--transition-base);
    color: var(--accent-primary);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer-inner {
    padding: 0 var(--space-lg) var(--space-lg);
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== CTA Section ===== */
.cta-section {
    background: var(--bg-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
}

.cta-content {
    position: relative;
    text-align: center;
    z-index: 1;
}

.cta-content h2 {
    margin-bottom: var(--space-md);
}

.cta-content p {
    margin: 0 auto var(--space-xl);
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-secondary);
    padding: var(--space-3xl) 0 var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand p {
    margin-top: var(--space-md);
    font-size: 0.95rem;
}

.footer-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    color: var(--text-tertiary);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-legal {
    display: flex;
    gap: var(--space-lg);
}

.footer-legal a {
    color: var(--text-muted);
    font-size: 0.9rem;
}

@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

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

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

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

.mt-sm {
    margin-top: var(--space-sm);
}

.mt-md {
    margin-top: var(--space-md);
}

.mt-lg {
    margin-top: var(--space-lg);
}

.mt-xl {
    margin-top: var(--space-xl);
}

.mt-2xl {
    margin-top: var(--space-2xl);
}

.mb-sm {
    margin-bottom: var(--space-sm);
}

.mb-md {
    margin-bottom: var(--space-md);
}

.mb-lg {
    margin-bottom: var(--space-lg);
}

.mb-xl {
    margin-bottom: var(--space-xl);
}

.mb-2xl {
    margin-bottom: var(--space-2xl);
}

.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

.animate-slide-in {
    animation: slideIn 0.6s ease-out forwards;
}

.animate-scale-in {
    animation: scaleIn 0.4s ease-out forwards;
}

/* ===== Scroll Animations ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Mobile Nav ===== */
.nav-mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.nav-mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    margin: 6px 0;
    transition: all var(--transition-base);
}

@media (max-width: 768px) {
    .nav-desktop {
        display: none;
    }

    .nav-desktop.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        padding: var(--space-lg);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        gap: var(--space-md);
        animation: slideIn 0.3s ease-out;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        z-index: 999;
    }

    .nav-mobile-toggle {
        display: block;
    }
}

/* ===== AdSense Placeholder ===== */
.ad-container {
    background: var(--bg-tertiary);
    border: 1px dashed rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    text-align: center;
    margin: var(--space-xl) auto;
    max-width: 728px;
}

.ad-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ===== Language Selector (SEO Optimized) ===== */
.language-selector {
    position: relative;
    display: inline-block;
    z-index: 1001;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: 8px 16px;
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    outline: none;
}

.lang-btn:hover,
.lang-btn[aria-expanded="true"] {
    border-color: var(--accent-primary);
    background: var(--bg-card-hover);
}

.lang-btn i {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    transition: transform var(--transition-fast);
}

.lang-btn[aria-expanded="true"] i {
    transform: rotate(180deg);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 240px;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 8px 0;
    max-height: 400px;
    overflow-y: auto;
    display: none;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.lang-dropdown.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    font-size: 0.95rem;
    text-decoration: none;
}

.lang-option:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    padding-left: 20px;
}

.lang-option.active {
    color: var(--accent-primary);
    background: rgba(0, 212, 255, 0.05);
    font-weight: 600;
}

.fi {
    width: 1.25em;
    line-height: 1em;
    border-radius: 2px;
    box-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
}

.lang-code {
    font-weight: 600;
    min-width: 24px;
}

/* Scrollbar for dropdown */
.lang-dropdown::-webkit-scrollbar {
    width: 6px;
}

.lang-dropdown::-webkit-scrollbar-track {
    background: var(--bg-card);
}

.lang-dropdown::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
}

.lang-dropdown::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}