@font-face {
    font-family: 'Hey August';
    src: url('fonts/hey-august.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

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

:root {
    --primary: #667eea;
    --primary-end: #764ba2;
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --delete-color: #ff4757;
    --keep-color: #2ed573;
    --album-color: #ffa502;
    --explore-color: #5f27cd;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.6);
    --text-tertiary: rgba(255, 255, 255, 0.4);
    --bg: #050505;
    --bg-elevated: #0c0c0c;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ─── Navigation ─── */

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.navbar {
    padding: 0.875rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Hey August', sans-serif;
    font-size: 1.5rem;
    font-weight: normal;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: 0.02em;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lang-switcher {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    color: var(--text-secondary);
    font-size: 0.8125rem;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
}

.lang-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.lang-btn .chevron {
    transition: transform 0.2s;
}

.lang-switcher.open .lang-btn .chevron {
    transform: rotate(180deg);
}

.lang-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 160px;
    max-height: 320px;
    overflow-y: auto;
    background: rgba(20, 20, 20, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0.375rem;
    z-index: 100;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
}

.lang-switcher.open .lang-dropdown {
    display: block;
}

.lang-dropdown a {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.8125rem;
    border-radius: var(--radius-sm);
    transition: all 0.15s;
}

.lang-dropdown a:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.lang-dropdown a.active {
    color: var(--primary);
    font-weight: 600;
}

.download-btn-nav {
    padding: 0.5rem 1.25rem;
    background: var(--text-primary);
    color: var(--bg);
    text-decoration: none;
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.2s;
}

.download-btn-nav:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(255, 255, 255, 0.2);
}

/* ─── Hero ─── */

.hero {
    position: relative;
    padding: 140px 0 100px;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse at center, rgba(102, 126, 234, 0.12) 0%, rgba(118, 75, 162, 0.06) 40%, transparent 70%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

.hero-eyebrow {
    display: inline-block;
    padding: 0.375rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    letter-spacing: 0.02em;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.75;
    max-width: 480px;
}

.hero-buttons {
    margin-bottom: 2.5rem;
}

.app-store-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.875rem 1.75rem;
    background: var(--text-primary);
    color: var(--bg);
    text-decoration: none;
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.25s;
    box-shadow: 0 4px 24px rgba(255, 255, 255, 0.08);
}

.app-store-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(255, 255, 255, 0.15);
}

.app-store-btn.large {
    padding: 1rem 2rem;
    font-size: 1.0625rem;
}

.apple-icon {
    width: 22px;
    height: 22px;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 0.8s ease-out;
}

.phone-mockup {
    max-width: 340px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 60px rgba(102, 126, 234, 0.15));
    animation: float 4s ease-in-out infinite;
}

/* ─── Section Shared ─── */

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-badge {
    display: inline-block;
    padding: 0.3rem 0.875rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 0.75rem;
}

.section-header .section-title {
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ─── Features ─── */

.features {
    padding: 100px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
}

.feature-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    animation: fadeInUp 0.6s ease-out backwards;
    animation-delay: var(--delay);
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

.feature-image {
    width: 100%;
    overflow: hidden;
    background: var(--bg);
}

.feature-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.4s ease;
}

.feature-card:hover .feature-image img {
    transform: scale(1.03);
}

.feature-content {
    padding: 1.5rem;
}

.feature-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.875rem;
}

.feature-icon svg {
    width: 20px;
    height: 20px;
    color: var(--text-primary);
}

.feature-icon.delete { background: var(--delete-color); }
.feature-icon.keep { background: var(--keep-color); }
.feature-icon.album { background: var(--album-color); }
.feature-icon.explore { background: var(--explore-color); }

.feature-content h3 {
    font-size: 1.0625rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.feature-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* ─── Duplicates ─── */

.duplicates {
    padding: 80px 0;
}

.duplicates-inner {
    display: flex;
    align-items: flex-start;
    gap: 3rem;
    padding: 3rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.duplicates-icon-wrap {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
}

.duplicates-icon-wrap svg {
    width: 32px;
    height: 32px;
    color: white;
}

.duplicates-text .section-badge {
    margin-bottom: 0.75rem;
}

.duplicates-text .section-title {
    margin-bottom: 1rem;
}

.duplicates-text p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.75;
    max-width: 640px;
}

/* ─── Browse ─── */

.browse {
    padding: 100px 0;
}

.browse-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.browse-card {
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

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

.browse-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    margin-bottom: 1.25rem;
}

.browse-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.browse-icon.year { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.browse-icon.otd { background: linear-gradient(135deg, #f093fb, #f5576c); }
.browse-icon.chaos { background: linear-gradient(135deg, #ffa502, #ff6348); }

.browse-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.browse-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.65;
}

/* ─── Benefits ─── */

.benefits {
    padding: 100px 0;
}

.benefits .section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 0.875rem;
    padding: 1.25rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all 0.2s;
}

.benefit-item:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.benefit-item svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--keep-color);
    margin-top: 2px;
}

.benefit-item span {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ─── Privacy ─── */

.privacy {
    padding: 60px 0;
}

.privacy-card {
    text-align: center;
    padding: 3.5rem 2rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.06), rgba(118, 75, 162, 0.06));
    border: 1px solid rgba(102, 126, 234, 0.15);
    border-radius: var(--radius-lg);
}

.privacy-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    background: var(--primary-gradient);
    border-radius: 50%;
}

.privacy-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.privacy-card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.625rem;
    letter-spacing: -0.02em;
}

.privacy-card p {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 480px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ─── CTA ─── */

.cta-section {
    padding: 100px 0;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.75rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.cta-note {
    margin-top: 1rem !important;
    font-size: 0.875rem !important;
    color: var(--text-tertiary) !important;
    margin-bottom: 0 !important;
}

/* ─── Footer ─── */

footer {
    padding: 2.5rem 0;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

/* ─── Animations ─── */

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(24px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-16px); }
}

/* ─── Responsive ─── */

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title { font-size: 2.75rem; }
    .hero-subtitle { margin-left: auto; margin-right: auto; }

    .hero-image { order: -1; }
    .phone-mockup { max-width: 260px; }

    .duplicates-inner {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .duplicates-text p {
        margin: 0 auto;
    }

    .browse-grid {
        grid-template-columns: 1fr;
        max-width: 420px;
        margin: 0 auto;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    .footer-brand {
        flex-direction: column;
        gap: 0.5rem;
    }

    .section-title { font-size: 1.875rem; }
    .cta-content h2 { font-size: 2rem; }
}

@media (max-width: 640px) {
    .hero { padding: 120px 0 60px; }
    .hero-title { font-size: 2rem; }
    .hero-subtitle { font-size: 1rem; }

    .features-grid {
        grid-template-columns: 1fr;
        max-width: 360px;
        margin: 0 auto;
    }

    .feature-image { aspect-ratio: 3 / 4; }

    .features,
    .browse,
    .benefits,
    .cta-section { padding: 60px 0; }

    .duplicates-inner { padding: 2rem 1.5rem; }

    .section-title { font-size: 1.625rem; }
    .cta-content h2 { font-size: 1.75rem; }

    .nav-right { gap: 0.5rem; }
    .download-btn-nav { padding: 0.5rem 1rem; font-size: 0.8125rem; }
    .lang-btn span { display: none; }
}