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

:root {
    --bg: #0a0a0f;
    --bg-card: #12121a;
    --bg-card-hover: #1a1a25;
    --text: #e4e4e7;
    --text-muted: #71717a;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --border: #27272a;
    --radius: 12px;
    --max-width: 1100px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

/* ─── Skip to content ─────────────────────────────────────────── */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #fff;
    padding: 8px 20px;
    border-radius: 0 0 8px 8px;
    font-size: 0.85rem;
    font-weight: 500;
    z-index: 200;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 0;
}

/* ─── Lang Switch ─────────────────────────────────────────────── */
.lang-switch {
    display: flex;
    gap: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 3px;
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font);
}

.lang-btn:hover {
    color: var(--text);
}

.lang-btn.active {
    background: var(--accent);
    color: #fff;
}

/* ─── Nav ─────────────────────────────────────────────────────── */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    transition: background 0.3s, backdrop-filter 0.3s;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    line-height: 1;
}

.nav-logo img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    flex-shrink: 0;
}

.logo-text {
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
}

nav.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-links {
    display: flex;
    gap: 24px;
}

.nav-links a {
    font-size: 0.875rem;
    color: var(--text-muted);
    transition: color 0.2s;
}

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

/* ─── Hero ────────────────────────────────────────────────────── */
#hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 120px 24px 80px;
    max-width: var(--max-width);
    margin: 0 auto;
    position: relative;
}

/* Gradient glow behind hero */
#hero::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

.hero-logo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin-bottom: 32px;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 32px;
    letter-spacing: 0.05em;
}

#hero h1 {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero-sub {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    color: var(--text-muted);
    max-width: 540px;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

/* ─── Buttons ─────────────────────────────────────────────────── */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

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

/* ─── Sections ────────────────────────────────────────────────── */
section {
    padding: 80px 24px;
    max-width: var(--max-width);
    margin: 0 auto;
}

section h2 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 48px;
}

/* ─── Scroll Reveal ───────────────────────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Stagger children */
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }

/* ─── About ───────────────────────────────────────────────────── */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.about-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color 0.2s;
}

.about-card:hover {
    border-color: var(--accent);
}

.about-icon {
    font-size: 1.8rem;
    margin-bottom: 16px;
}

.about-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.about-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ─── Projects ────────────────────────────────────────────────── */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.project-card {
    display: block;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.25s;
}

.project-card:hover {
    border-color: var(--accent);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.project-tag {
    display: inline-block;
    padding: 3px 10px;
    background: var(--accent-glow);
    color: var(--accent-hover);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    margin-bottom: 16px;
}

.project-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.project-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.project-link {
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 500;
}

.project-card:hover .project-link {
    color: var(--accent-hover);
}

/* ─── Press ───────────────────────────────────────────────────── */
.press-desc {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 36px;
    max-width: 600px;
}

.press-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.press-card {
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.press-card-soon {
    opacity: 0.65;
}

.press-status {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(34, 197, 94, 0.12);
    color: #4ade80;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    margin-bottom: 16px;
}

.press-status-soon {
    background: rgba(234, 179, 8, 0.12);
    color: #facc15;
}

.press-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.press-card p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 12px;
}

.press-tag {
    display: inline-block;
    padding: 2px 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* ─── Stats ───────────────────────────────────────────────────── */
#stats {
    padding: 60px 24px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    max-width: var(--max-width);
    margin: 0 auto;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}

.stat-number {
    display: block;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--accent);
    line-height: 1.2;
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ─── Contact ─────────────────────────────────────────────────── */
.contact-desc {
    color: var(--text-muted);
    margin-bottom: 24px;
}

.contact-email {
    display: inline-block;
    padding: 14px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--accent);
    transition: all 0.2s;
}

.contact-email:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
}

.contact-socials {
    display: flex;
    gap: 24px;
    margin-top: 24px;
}

.contact-socials a {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: color 0.2s;
}

.contact-socials a:hover {
    color: var(--text);
}

/* ─── Footer ──────────────────────────────────────────────────── */
footer {
    padding: 32px 24px;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

footer span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ─── Mobile ──────────────────────────────────────────────────── */
@media (max-width: 640px) {
    .nav-links {
        gap: 16px;
    }

    .nav-links a {
        font-size: 0.8rem;
    }

    #hero {
        padding: 100px 20px 60px;
    }

    section {
        padding: 60px 20px;
    }

    section h2 {
        margin-bottom: 32px;
    }

    .about-grid,
    .projects-grid,
    .press-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 260px;
        text-align: center;
    }
}