/* ============================================================
   Cloud Monitor — Landing Page
   Dark theme, developer aesthetic, clean typography
   ============================================================ */

:root {
    --bg: #0a0a0f;
    --bg-raised: #12121a;
    --bg-card: #16161f;
    --border: #1e1e2e;
    --border-light: #2a2a3a;
    --text: #e4e4ef;
    --text-muted: #8888a0;
    --text-dim: #5a5a70;
    --accent: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --accent-bright: #818cf8;
    --green: #22c55e;
    --yellow: #eab308;
    --orange: #f97316;
    --keymaster: #6366f1;
    --gatekeeper: #22c55e;
    --zuul: #f97316;
    --mono: 'SF Mono', 'Fira Code', 'JetBrains Mono', 'Cascadia Code', monospace;
    --sans: 'Inter', system-ui, -apple-system, sans-serif;
    --max-w: 1120px;
}

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

html { scroll-behavior: smooth; }

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

.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px;
}

a { color: var(--accent-bright); text-decoration: none; }
a:hover { color: var(--text); }

/* ---- Nav ---- */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    font-family: var(--mono);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 6px;
    letter-spacing: -0.02em;
}
.logo:hover { color: var(--text); }
.logo-icon { color: var(--accent); font-size: 1.2rem; }
.logo-img { height: 24px; vertical-align: middle; filter: brightness(1.6) contrast(1.1) hue-rotate(20deg); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--text-muted); font-size: 0.875rem; font-weight: 500; transition: color 0.15s; }
.nav-links a:hover { color: var(--text); }
.btn-nav {
    background: var(--accent) !important;
    color: #fff !important;
    padding: 6px 16px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
}
.btn-nav:hover { opacity: 0.9; }
.mobile-menu { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 4px; padding: 8px; }
.mobile-menu span { display: block; width: 20px; height: 2px; background: var(--text-muted); border-radius: 2px; }

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.15s;
    cursor: pointer;
    border: none;
}
.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 0 20px var(--accent-glow);
}
.btn-primary:hover { background: var(--accent-bright); color: #fff; }
.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-light);
}
.btn-ghost:hover { color: var(--text); border-color: var(--text-dim); }

/* ---- Badge ---- */
.badge {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-bright);
    background: var(--accent-glow);
    border: 1px solid rgba(99, 102, 241, 0.2);
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 16px;
}

/* ---- Section headers ---- */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}
.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.2;
}

/* ---- Hero ---- */
.hero {
    position: relative;
    padding: 160px 0 80px;
    overflow: hidden;
    text-align: center;
}
.hero-glow {
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
}
.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 24px;
}
.hero h1 em {
    font-style: normal;
    background: linear-gradient(135deg, var(--accent-bright), #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto 36px;
    line-height: 1.7;
}
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Terminal */
.hero-terminal {
    max-width: 620px;
    margin: 60px auto 0;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    text-align: left;
}
.terminal-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }
.terminal-title {
    margin-left: 8px;
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--text-dim);
}
.hero-terminal pre {
    padding: 20px;
    font-family: var(--mono);
    font-size: 0.82rem;
    line-height: 1.7;
    overflow-x: auto;
}
.hero-terminal code { color: var(--text-muted); }
.t-comment { color: var(--text-dim); }
.t-prompt { color: var(--green); }
.t-json { color: var(--accent-bright); }

/* ---- Suite (product cards) ---- */
.suite {
    padding: 100px 0;
}
.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px 28px;
    transition: border-color 0.2s, transform 0.2s;
}
.card:hover { transform: translateY(-2px); }
.card-keymaster:hover { border-color: var(--keymaster); }
.card-gatekeeper:hover { border-color: var(--gatekeeper); }
.card-zuul:hover { border-color: var(--zuul); }
.card-status {
    position: absolute;
    top: 20px;
    right: 20px;
    font-family: var(--mono);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 3px 10px;
    border-radius: 12px;
}
.card-status.live { color: var(--green); background: rgba(34, 197, 94, 0.1); border: 1px solid rgba(34, 197, 94, 0.2); }
.card-status.building { color: var(--yellow); background: rgba(234, 179, 8, 0.1); border: 1px solid rgba(234, 179, 8, 0.2); }
.card-status.planned { color: var(--orange); background: rgba(249, 115, 22, 0.1); border: 1px solid rgba(249, 115, 22, 0.2); }
.card-icon { font-size: 2rem; margin-bottom: 16px; }
.card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 4px;
    letter-spacing: -0.02em;
}
.card-role {
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-bottom: 16px;
}
.card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }
.card-features {
    list-style: none;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}
.card-features li {
    font-size: 0.82rem;
    color: var(--text-muted);
    padding: 4px 0;
    padding-left: 18px;
    position: relative;
}
.card-features li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--text-dim);
}

/* ---- How it works ---- */
.how-it-works {
    padding: 100px 0;
    background: var(--bg-raised);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.flow-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}
.flow-node {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px 32px;
    text-align: center;
    min-width: 200px;
    transition: border-color 0.2s;
}
.flow-node:hover { border-color: var(--accent); }
.flow-label {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 4px;
}
.flow-node span { font-size: 0.8rem; color: var(--text-dim); }
.flow-broker { border-color: var(--accent); background: rgba(99, 102, 241, 0.05); }
.flow-broker .flow-label { color: var(--accent-bright); }
.flow-arrow {
    font-size: 1.5rem;
    color: var(--text-dim);
    font-family: var(--mono);
}
.flow-details {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.flow-detail { padding: 0 8px; }
.flow-num {
    font-family: var(--mono);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 10px;
}
.flow-detail h4 { font-size: 1rem; margin-bottom: 8px; font-weight: 600; }
.flow-detail p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* ---- Developers ---- */
.developers {
    padding: 100px 0;
}
.dev-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.dev-point {
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    transition: border-color 0.2s;
}
.dev-point:hover { border-color: var(--border-light); }
.dev-icon { font-size: 1.5rem; margin-bottom: 14px; }
.dev-point h4 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.dev-point p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* ---- CTA ---- */
.cta {
    padding: 100px 0;
    text-align: center;
    background: var(--bg-raised);
    border-top: 1px solid var(--border);
}
.cta h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}
.cta p {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 32px;
}
.cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---- Footer ---- */
footer {
    padding: 60px 0 40px;
    border-top: 1px solid var(--border);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand {
    font-family: var(--mono);
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.footer-brand p { font-family: var(--sans); font-size: 0.85rem; color: var(--text-dim); font-weight: 400; }
.footer-col { display: flex; flex-direction: column; gap: 8px; }
.footer-col h4 { font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); margin-bottom: 4px; }
.footer-col a { font-size: 0.85rem; color: var(--text-muted); }
.footer-col a:hover { color: var(--text); }
.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
    color: var(--text-dim);
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
    .cards { grid-template-columns: 1fr; }
    .flow-details { grid-template-columns: repeat(2, 1fr); }
    .dev-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
    .nav-links { display: none; position: absolute; top: 60px; left: 0; right: 0; background: var(--bg); border-bottom: 1px solid var(--border); flex-direction: column; padding: 16px 24px; gap: 16px; }
    .nav-links.open { display: flex; }
    .mobile-menu { display: flex; }
    .hero { padding: 120px 0 60px; }
    .hero h1 { font-size: 2.2rem; }
    .flow-diagram { flex-direction: column; }
    .flow-arrow { transform: rotate(90deg); }
    .flow-details { grid-template-columns: 1fr; }
    .dev-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}