/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    background: #0a0a0f;
    color: #d0d0d0;
    line-height: 1.6;
    min-height: 100vh;
}
a { color: #4f8ff7; text-decoration: none; transition: color .2s; }
a:hover { color: #7aabff; }
img { max-width: 100%; }

/* ===== Gradient background ===== */
.gradient-bg {
    position: fixed; inset: 0; z-index: -1;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(16,85,170,.12) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(100,40,200,.08) 0%, transparent 50%);
}

/* ===== Navigation ===== */
nav {
    display: flex; justify-content: space-between; align-items: center;
    max-width: 1140px; margin: 0 auto; padding: 1.4rem 2rem;
}
.logo { font-size: 1.45rem; font-weight: 700; color: #fff; }
.logo span { color: #4f8ff7; }
.nav-links { list-style: none; display: flex; gap: 1.8rem; }
.nav-links a { color: #888; font-size: .9rem; }
.nav-links a:hover, .nav-links a.active { color: #fff; }
.nav-cta {
    padding: .5rem 1.3rem; background: #4f8ff7; color: #fff !important;
    border-radius: 6px; font-size: .85rem; font-weight: 600;
}
.nav-cta:hover { background: #3a7ae0; }

/* Mobile nav */
.menu-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; }
@media (max-width: 768px) {
    .menu-toggle { display: block; }
    .nav-links { display: none; flex-direction: column; position: absolute; top: 60px; right: 2rem;
        background: #13131a; border: 1px solid #222; border-radius: 8px; padding: 1rem 1.5rem; gap: 1rem; z-index: 100; }
    .nav-links.open { display: flex; }
}

/* ===== Hero ===== */
.hero {
    max-width: 1140px; margin: 0 auto; padding: 7rem 2rem 4rem;
    display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
}
.hero h1 { font-size: 3rem; line-height: 1.12; color: #fff; margin-bottom: 1.2rem; }
.hero h1 .hl { background: linear-gradient(135deg, #4f8ff7, #a855f7); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero .sub { font-size: 1.1rem; color: #888; margin-bottom: 2rem; }

/* ===== Page header (inner pages) ===== */
.page-header {
    max-width: 1140px; margin: 0 auto; padding: 6rem 2rem 3rem; text-align: center;
}
.page-header h1 { font-size: 2.6rem; color: #fff; margin-bottom: .8rem; }
.page-header p { color: #777; font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

/* ===== Buttons ===== */
.btn {
    display: inline-block; padding: .8rem 1.8rem; border-radius: 8px;
    font-weight: 600; font-size: .95rem; transition: background .2s;
}
.btn-primary { background: #4f8ff7; color: #fff; }
.btn-primary:hover { background: #3a7ae0; color: #fff; }
.btn-outline { background: transparent; border: 1px solid #333; color: #ccc; }
.btn-outline:hover { border-color: #4f8ff7; color: #fff; }

/* ===== Terminal ===== */
.terminal {
    background: #111118; border: 1px solid #1e1e2a; border-radius: 12px;
    padding: 1.4rem; font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace; font-size: .84rem;
}
.terminal-dots { display: flex; gap: 6px; margin-bottom: 1rem; }
.terminal-dots i { width: 12px; height: 12px; border-radius: 50%; display: block; }
.dot-r { background: #ff5f57; } .dot-y { background: #febc2e; } .dot-g { background: #28c840; }
.term-line { color: #555; margin: .3rem 0; }
.term-line .cmd { color: #4f8ff7; }
.term-line .ok { color: #28c840; }

/* ===== Sections ===== */
.section { max-width: 1140px; margin: 0 auto; padding: 4rem 2rem; }
.section-title { font-size: 1.8rem; color: #fff; margin-bottom: .6rem; }
.section-sub { color: #777; margin-bottom: 2.5rem; max-width: 540px; }
.section.center { text-align: center; }
.section.center .section-sub { margin: 0 auto 2.5rem; }

/* ===== Cards grid ===== */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.card {
    background: #111118; border: 1px solid #1a1a24; border-radius: 12px;
    padding: 2rem; transition: border-color .2s;
}
.card:hover { border-color: #4f8ff7; }
.card-icon { font-size: 2rem; margin-bottom: .8rem; }
.card h3 { color: #fff; margin-bottom: .5rem; font-size: 1.1rem; }
.card p { color: #777; font-size: .9rem; }

/* ===== Stats row ===== */
.stats { display: flex; justify-content: center; gap: 4rem; padding: 3rem 0; flex-wrap: wrap; }
.stat-item { text-align: center; }
.stat-num { font-size: 2.4rem; font-weight: 700; color: #4f8ff7; }
.stat-label { color: #666; font-size: .85rem; margin-top: .3rem; }

/* ===== Team grid ===== */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.team-member {
    background: #111118; border: 1px solid #1a1a24; border-radius: 12px;
    padding: 2rem; text-align: center;
}
.team-avatar {
    width: 72px; height: 72px; border-radius: 50%; margin: 0 auto 1rem;
    background: linear-gradient(135deg, #4f8ff7, #a855f7); display: flex; align-items: center;
    justify-content: center; font-size: 1.6rem; color: #fff; font-weight: 700;
}
.team-member h4 { color: #fff; margin-bottom: .2rem; }
.team-member p { color: #666; font-size: .85rem; }

/* ===== Docs / API ref ===== */
.docs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.doc-card {
    background: #111118; border: 1px solid #1a1a24; border-radius: 12px;
    padding: 1.8rem; transition: border-color .2s;
}
.doc-card:hover { border-color: #4f8ff7; }
.doc-card h3 { color: #fff; font-size: 1.05rem; margin-bottom: .5rem; }
.doc-card p { color: #666; font-size: .88rem; }
.doc-tag {
    display: inline-block; padding: .2rem .6rem; border-radius: 4px;
    font-size: .75rem; font-weight: 600; margin-top: .8rem;
}
.tag-guide { background: rgba(79,143,247,.15); color: #4f8ff7; }
.tag-api { background: rgba(168,85,247,.15); color: #a855f7; }
.tag-tutorial { background: rgba(40,200,64,.15); color: #28c840; }

/* ===== Code block ===== */
.code-block {
    background: #0d0d14; border: 1px solid #1a1a24; border-radius: 8px;
    padding: 1.2rem 1.5rem; font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: .84rem; color: #aaa; overflow-x: auto; margin: 1.5rem 0;
}
.code-block .kw { color: #c678dd; }
.code-block .str { color: #98c379; }
.code-block .cm { color: #555; }
.code-block .fn { color: #61afef; }

/* ===== Contact form ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; color: #999; font-size: .85rem; margin-bottom: .4rem; }
.form-group input, .form-group textarea, .form-group select {
    width: 100%; padding: .75rem 1rem; background: #111118; border: 1px solid #222;
    border-radius: 8px; color: #ddd; font-size: .9rem; font-family: inherit;
    transition: border-color .2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none; border-color: #4f8ff7;
}
.form-group textarea { resize: vertical; min-height: 120px; }
.contact-info h3 { color: #fff; margin-bottom: 1rem; }
.contact-info p { color: #777; margin-bottom: 1.5rem; font-size: .95rem; }
.info-item { display: flex; gap: .8rem; margin-bottom: 1rem; align-items: center; }
.info-icon { width: 40px; height: 40px; background: rgba(79,143,247,.1); border-radius: 8px;
    display: flex; align-items: center; justify-content: center; font-size: 1.1rem; flex-shrink: 0; }
.info-text { color: #aaa; font-size: .9rem; }
.info-text strong { color: #ddd; display: block; margin-bottom: .1rem; }

/* ===== CTA banner ===== */
.cta-banner {
    background: linear-gradient(135deg, rgba(79,143,247,.1), rgba(168,85,247,.1));
    border: 1px solid #1e1e2a; border-radius: 16px;
    padding: 3.5rem; text-align: center; margin: 2rem 0;
}
.cta-banner h2 { color: #fff; font-size: 1.8rem; margin-bottom: .8rem; }
.cta-banner p { color: #888; margin-bottom: 1.5rem; }

/* ===== Timeline ===== */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: #1e1e2a; }
.timeline-item { position: relative; margin-bottom: 2rem; padding-left: 1.5rem; }
.timeline-item::before {
    content: ''; position: absolute; left: -2.35rem; top: .4rem;
    width: 12px; height: 12px; border-radius: 50%; background: #4f8ff7; border: 2px solid #0a0a0f;
}
.timeline-item h4 { color: #fff; margin-bottom: .3rem; }
.timeline-item .date { color: #4f8ff7; font-size: .8rem; margin-bottom: .3rem; }
.timeline-item p { color: #666; font-size: .9rem; }

/* ===== Footer ===== */
footer {
    border-top: 1px solid #151520; margin-top: 4rem;
}
.footer-inner {
    max-width: 1140px; margin: 0 auto; padding: 3rem 2rem;
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem;
}
.footer-brand p { color: #555; font-size: .85rem; margin-top: .5rem; max-width: 260px; }
.footer-col h4 { color: #999; font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; margin-bottom: .8rem; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: .4rem; }
.footer-col a { color: #555; font-size: .85rem; }
.footer-col a:hover { color: #4f8ff7; }
.footer-bottom {
    max-width: 1140px; margin: 0 auto; padding: 1.5rem 2rem;
    border-top: 1px solid #151520; text-align: center; color: #333; font-size: .8rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .hero { grid-template-columns: 1fr; padding: 4rem 2rem 2rem; }
    .hero h1 { font-size: 2rem; }
    .cards { grid-template-columns: 1fr; }
    .team-grid { grid-template-columns: repeat(2, 1fr); }
    .docs-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .stats { gap: 2rem; }
}