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

:root {
    --primary:       #2563eb;
    --primary-dark:  #1d4ed8;
    --primary-light: #3b82f6;
    --accent:        #0ea5e9;
    --green:         #16a34a;
    --green-dark:    #15803d;
    --dark:          #0d1117;
    --dark-2:        #161b22;
    --dark-3:        #21262d;
    --border:        #30363d;
    --gray:          #8b949e;
    --gray-light:    #c9d1d9;
    --white:         #f0f6fc;
    --code-bg:       #161b22;
    --gradient:      linear-gradient(135deg, #2563eb 0%, #0ea5e9 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--dark);
    color: var(--gray-light);
    line-height: 1.6;
    overflow-x: hidden;
}

.container { max-width:1100px; margin:0 auto; padding:0 24px; }
section { padding:80px 0; }
h1,h2,h3,h4 { line-height:1.2; color:var(--white); font-weight:700; }
a { color:var(--primary-light); text-decoration:none; }

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

/* ── Buttons ──────────────────────────────────────────────── */
.btn { display:inline-block; padding:12px 28px; border-radius:8px;
       font-weight:600; font-size:1rem; cursor:pointer;
       border:none; transition:all .2s; text-decoration:none; }
.btn-primary   { background:var(--primary); color:#fff; }
.btn-primary:hover { background:var(--primary-dark); }
.btn-secondary { background:transparent; color:var(--white);
                 border:1px solid var(--border); }
.btn-secondary:hover { background:var(--dark-3); border-color:var(--gray); }
.btn-green  { background:var(--green); color:#fff; }
.btn-green:hover { background:var(--green-dark); }
.btn-lg { padding:14px 36px; font-size:1.1rem; }

/* ── Navbar ───────────────────────────────────────────────── */
.navbar {
    position:sticky; top:0; z-index:100;
    background:rgba(13,17,23,.9); backdrop-filter:blur(12px);
    border-bottom:1px solid var(--border);
    padding:14px 0;
}
.navbar .container { display:flex; align-items:center; gap:32px; }
.nav-brand { font-size:1.1rem; font-weight:700; color:var(--white);
             white-space:nowrap; }
.nav-brand span { color:var(--accent); }
.nav-menu { display:flex; list-style:none; gap:24px; align-items:center;
            flex:1; }
.nav-menu a { color:var(--gray-light); font-size:.95rem; transition:color .2s; }
.nav-menu a:hover { color:var(--white); }
.nav-menu .btn { padding:8px 18px; font-size:.9rem; }
.nav-right { margin-left:auto; display:flex; gap:10px; align-items:center; }

/* ── Hero ─────────────────────────────────────────────────── */
.hero { padding:100px 0 80px; text-align:center; }
.hero-badge { display:inline-block; background:rgba(37,99,235,.15);
              border:1px solid rgba(37,99,235,.4); color:var(--primary-light);
              padding:6px 16px; border-radius:20px; font-size:.85rem;
              font-weight:600; letter-spacing:.5px; margin-bottom:24px; }
.hero h1 { font-size:3.2rem; line-height:1.1; margin-bottom:20px;
           max-width:800px; margin-left:auto; margin-right:auto; }
.hero-sub { font-size:1.2rem; color:var(--gray); max-width:600px;
            margin:0 auto 36px; }
.hero-cta  { display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }
.hero-stats { display:flex; justify-content:center; gap:48px;
              margin:56px 0 0; padding-top:48px;
              border-top:1px solid var(--border); }
.stat-num  { display:block; font-size:2rem; font-weight:800; color:var(--white); }
.stat-lbl  { font-size:.85rem; color:var(--gray); }

/* ── Code block ───────────────────────────────────────────── */
.code-block {
    background:var(--code-bg); border:1px solid var(--border);
    border-radius:10px; overflow:hidden; text-align:left;
}
.code-header { background:var(--dark-3); padding:10px 16px;
               display:flex; gap:8px; align-items:center; }
.code-dot { width:12px; height:12px; border-radius:50%; }
.code-dot.r { background:#ff5f57; }
.code-dot.y { background:#ffbd2e; }
.code-dot.g { background:#28ca41; }
.code-lang { margin-left:auto; font-size:.8rem; color:var(--gray);
             font-family:monospace; }
pre { padding:20px; overflow-x:auto; }
code { font-family:'Fira Code','Cascadia Code',monospace; font-size:.9rem;
       line-height:1.7; color:#e6edf3; }
.kw   { color:#ff7b72; }
.fn   { color:#d2a8ff; }
.str  { color:#a5d6ff; }
.cmt  { color:#8b949e; }
.num  { color:#79c0ff; }

/* ── Tabs ─────────────────────────────────────────────────── */
.tabs { display:flex; gap:4px; margin-bottom:-1px; }
.tab-btn { padding:10px 20px; border:1px solid var(--border);
           border-bottom:none; border-radius:8px 8px 0 0;
           background:var(--dark-3); color:var(--gray); cursor:pointer;
           font-size:.9rem; font-weight:500; transition:all .2s; }
.tab-btn.active { background:var(--code-bg); color:var(--white); }
.tab-pane { display:none; }
.tab-pane.active { display:block; }

/* ── Feature grid ─────────────────────────────────────────── */
.features-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.feature-card {
    background:var(--dark-2); border:1px solid var(--border);
    border-radius:12px; padding:28px; transition:border-color .2s;
}
.feature-card:hover { border-color:var(--primary); }
.feature-icon { font-size:1.8rem; margin-bottom:14px; }
.feature-card h3 { font-size:1rem; margin-bottom:8px; }
.feature-card p  { font-size:.9rem; color:var(--gray); line-height:1.6; }

/* ── Pricing ──────────────────────────────────────────────── */
.pricing-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.pricing-card {
    background:var(--dark-2); border:1px solid var(--border);
    border-radius:12px; padding:28px; display:flex;
    flex-direction:column; gap:16px;
}
.pricing-card.featured {
    border-color:var(--primary); position:relative;
    background:rgba(37,99,235,.08);
}
.pricing-card.featured::before {
    content:'Most Popular'; position:absolute; top:-12px; left:50%;
    transform:translateX(-50%); background:var(--primary);
    color:#fff; font-size:.75rem; font-weight:700; padding:3px 12px;
    border-radius:20px; letter-spacing:.5px;
}
.pricing-tier { font-size:.8rem; font-weight:700; letter-spacing:1px;
                color:var(--accent); text-transform:uppercase; }
.pricing-card h3 { font-size:1.2rem; }
.pricing-price { font-size:2.2rem; font-weight:800; color:var(--white); }
.pricing-price span { font-size:1rem; font-weight:400; color:var(--gray); }
.pricing-desc { font-size:.9rem; color:var(--gray); }
.pricing-features { list-style:none; display:flex; flex-direction:column; gap:8px; }
.pricing-features li { font-size:.9rem; display:flex; gap:8px; align-items:flex-start; }
.pricing-features li::before { content:'✓'; color:var(--green); font-weight:700;
                                flex-shrink:0; }
.pricing-card .btn { margin-top:auto; text-align:center; width:100%; }

/* ── FAQ ──────────────────────────────────────────────────── */
.faq { max-width:760px; margin:0 auto; display:flex; flex-direction:column; gap:12px; }
.faq-item { background:var(--dark-2); border:1px solid var(--border);
            border-radius:10px; overflow:hidden; }
.faq-q { padding:18px 20px; font-weight:600; color:var(--white);
         cursor:pointer; display:flex; justify-content:space-between;
         align-items:center; }
.faq-q::after { content:'+'; font-size:1.2rem; color:var(--gray);
                transition:transform .2s; }
.faq-item.open .faq-q::after { transform:rotate(45deg); }
.faq-a { padding:0 20px; max-height:0; overflow:hidden;
         transition:all .3s; font-size:.95rem; color:var(--gray); }
.faq-item.open .faq-a { padding:0 20px 18px; max-height:300px; }

/* ── Section headers ──────────────────────────────────────── */
.section-header { text-align:center; margin-bottom:56px; }
.section-header h2 { font-size:2.2rem; margin-bottom:12px; }
.section-header p  { color:var(--gray); font-size:1.05rem; }

/* ── Warning banner ───────────────────────────────────────── */
.notice-bar { background:rgba(14,165,233,.12); border:1px solid rgba(14,165,233,.3);
              border-radius:8px; padding:14px 20px; font-size:.9rem;
              color:var(--accent); margin-bottom:40px; text-align:center; }

/* ── Footer ───────────────────────────────────────────────── */
footer { border-top:1px solid var(--border); padding:40px 0;
         text-align:center; color:var(--gray); font-size:.9rem; }
footer a { color:var(--gray); margin:0 12px; }
footer a:hover { color:var(--white); }
.footer-links { margin-bottom:16px; }

/* ── Responsive ───────────────────────────────────────────── */
@media(max-width:768px) {
    .hero h1 { font-size:2rem; }
    .features-grid { grid-template-columns:1fr; }
    .pricing-grid  { grid-template-columns:1fr; }
    .hero-stats    { gap:24px; }
    .nav-menu      { display:none; }
}