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

:root {
    --bg: #0c0a14;
    --surface: #14111f;
    --border: #221e2e;
    --text: #ededed;
    --muted: #888;
    --accent: #6366f1;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

.wrap {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Nav ── */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    border-bottom: 1px solid transparent;
    transition: all 0.3s;
}

.nav.scrolled {
    background: rgba(10,10,10,0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-color: var(--border);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.03em;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-link {
    font-size: 0.8rem;
    color: var(--muted);
    text-decoration: none;
    transition: color 0.2s;
}
.nav-link:hover { color: var(--text); }

.nav-btn {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--bg);
    background: var(--text);
    padding: 6px 14px;
    border-radius: 6px;
    text-decoration: none;
    transition: opacity 0.2s;
}
.nav-btn:hover { opacity: 0.85; }

/* ── Hero ── */
.hero {
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 100px;
    position: relative;
}

.hero::after {
    content: '';
    position: absolute;
    width: 600px; height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99,102,241,0.08) 0%, transparent 70%);
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    z-index: 1;
    max-width: 600px;
}

.pill {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 5px 14px;
    margin-bottom: 32px;
}

.hero h1 {
    font-size: clamp(2rem, 5.5vw, 3.5rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-p {
    font-size: 1rem;
    color: var(--muted);
    line-height: 1.7;
    max-width: 440px;
    margin: 0 auto 36px;
}

/* ── Form ── */
.form {
    display: flex;
    gap: 8px;
    max-width: 400px;
    margin: 0 auto;
}

.form input {
    flex: 1;
    padding: 10px 14px;
    font-size: 0.875rem;
    font-family: inherit;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    outline: none;
    transition: border-color 0.2s;
}
.form input::placeholder { color: #555; }
.form input:focus { border-color: #444; }

.form button {
    padding: 10px 18px;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: inherit;
    background: var(--text);
    color: var(--bg);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    white-space: nowrap;
    transition: opacity 0.2s;
}
.form button:hover { opacity: 0.85; }

/* ── Divider ── */
.divider .wrap {
    height: 1px;
    background: var(--border);
}

/* ── Section ── */
.section {
    padding: 80px 0;
}

.tag {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}

.section h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 8px;
}

.sub {
    font-size: 0.95rem;
    color: var(--muted);
    margin-bottom: 0;
}

/* ── Cards ── */
.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 48px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px 24px;
    transition: border-color 0.25s;
}
.card:hover { border-color: #333; }

.card-n {
    display: block;
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 14px;
}

.card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.card p {
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.65;
}

/* ── Careers ── */
.careers-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 48px;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--text);
    color: var(--bg);
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
    transition: opacity 0.2s;
}
.cta-btn:hover { opacity: 0.85; }

/* ── Footer ── */
.footer {
    border-top: 1px solid var(--border);
    padding: 40px 0 32px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
    gap: 24px;
}

.footer .logo { font-size: 1rem; display: block; margin-bottom: 4px; }

.footer-sub {
    font-size: 0.78rem;
    color: #555;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    font-size: 0.78rem;
    color: #555;
    text-decoration: none;
    transition: color 0.2s;
}
.footer-links a:hover { color: var(--muted); }

.footer-copy {
    border-top: 1px solid var(--border);
    padding-top: 20px;
}
.footer-copy p { font-size: 0.72rem; color: #333; }

/* ── Messages ── */
.success-message, .error-message {
    margin-top: 12px;
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 500;
    text-align: center;
}
.success-message { background: rgba(74,222,128,0.08); border: 1px solid rgba(74,222,128,0.2); color: #4ade80; }
.error-message { background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.2); color: #f87171; }

/* ── Mobile ── */
@media (max-width: 700px) {
    .nav-link { display: none; }
    .cards { grid-template-columns: 1fr; }
    .careers-inner { flex-direction: column; align-items: flex-start; gap: 24px; }
    .section { padding: 60px 0; }
    .form { flex-direction: column; }
    .form button { width: 100%; }
    .footer-inner { flex-direction: column; gap: 16px; }
}