/* landing.css — shared dark theme for mosaigo landing pages */
:root {
  --primary: #2A7FBF;
  --deep: #1B4F7A;
  --light: #6DB3E0;
  --accent: #C8982A;
  --error: #B53030;
  --success: #3A8F5C;
  --muted: #6B6B78;
  --bg: #1a1a22;
  --bg-card: #22222c;
  --bg-code: #1e1e28;
  --text: #e4e4ea;
  --text-secondary: #9d9da8;
  --text-muted: #6B6B78;
  --border: #2e2e3a;
  --border-hover: #3e3e4e;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.65; font-size: 15px;
}

/* NAV */
.topnav {
  position: fixed; top: 0; left: 0; right: 0; height: 56px;
  background: #16161e; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; padding: 0 24px; z-index: 100;
}
.topnav-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--text);
  font-weight: 700; font-size: 1.1rem; letter-spacing: -0.02em; margin-right: 32px;
}
.topnav-logo img {
  width: 28px; height: 28px; border-radius: 6px;
}
.topnav-links { display: flex; gap: 24px; align-items: center; }
.topnav-link {
  color: var(--text-secondary); text-decoration: none;
  font-size: 0.88rem; font-weight: 500; transition: color 0.15s;
}
.topnav-link:hover { color: var(--text); }
.topnav-link.active { color: var(--primary); }
.topnav-right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.gh-link { color: var(--text-secondary); text-decoration: none; font-size: 0.85rem; font-weight: 500; }
.gh-link:hover { color: var(--text); }
.license-badge {
  font-size: 0.68rem; padding: 2px 7px; border-radius: 4px;
  background: rgba(58,143,92,0.15); color: var(--success); font-weight: 600;
}

/* HERO */
.hero {
  padding: 120px 24px 60px; text-align: center;
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(42,127,191,0.08) 0%, transparent 70%);
  opacity: 0.15; pointer-events: none;
}
.hero-img {
  display: block; max-width: 700px; width: 100%; margin: 32px auto 0;
  border-radius: 12px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 14px; border-radius: 20px; border: 1px solid var(--border);
  font-size: 0.78rem; color: var(--text-secondary); margin-bottom: 20px;
}
.hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--success); }
.hero h1 {
  font-size: 2.8rem; font-weight: 800; letter-spacing: -0.04em;
  line-height: 1.1; margin-bottom: 16px; white-space: nowrap; margin-left: auto; margin-right: auto;
}
.hero h1 .accent { color: var(--primary); }
.hero .tagline {
  font-size: 1.2rem; color: var(--text-secondary);
  max-width: 600px; margin: 0 auto 32px; line-height: 1.5;
}
.hero-actions { display: flex; gap: 12px; justify-content: center; margin-bottom: 24px; }
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 11px 24px; border-radius: 8px; font-size: 0.92rem;
  font-weight: 600; text-decoration: none; transition: all 0.15s;
}
.btn-primary { background: var(--primary); color: #fff; border: 1px solid var(--primary); }
.btn-primary:hover { background: var(--deep); border-color: var(--deep); }
.btn-secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--border-hover); background: rgba(255,255,255,0.03); }
.hero-install {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--bg-code); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 18px;
  font-family: 'JetBrains Mono', monospace; font-size: 0.86rem; color: var(--text);
}
.hero-install .prompt { color: var(--accent); user-select: none; }

/* SECTIONS */
.section { padding: 80px 24px; max-width: 1100px; margin: 0 auto; }
.section-label {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--primary); margin-bottom: 8px;
}
.section h2 { font-size: 2rem; font-weight: 700; letter-spacing: -0.03em; margin-bottom: 8px; }
.section .section-desc {
  font-size: 1.05rem; color: var(--text-secondary);
  max-width: 600px; margin-bottom: 36px; line-height: 1.5;
}

/* CARDS — diff style (icon + text) */
.diff-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.diff-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 28px; transition: border-color 0.15s;
}
.diff-card:hover { border-color: var(--border-hover); }
.diff-icon {
  width: 44px; height: 44px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; margin-bottom: 16px;
}
.diff-card h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 6px; }
.diff-card p { font-size: 0.86rem; color: var(--text-secondary); line-height: 1.55; }

/* CARDS — eco style (badge + text) */
.eco-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.eco-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 24px; transition: border-color 0.15s;
}
.eco-card:hover { border-color: var(--border-hover); }
.eco-badge {
  display: inline-block; padding: 2px 8px; border-radius: 4px;
  font-size: 0.7rem; font-weight: 700; margin-bottom: 12px;
}
.eco-card h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 6px; }
.eco-card p { font-size: 0.84rem; color: var(--text-secondary); line-height: 1.5; }

/* CODE */
.code-showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
.code-text h3 { font-size: 1.3rem; font-weight: 600; margin-bottom: 8px; }
.code-text p { color: var(--text-secondary); font-size: 0.92rem; margin-bottom: 16px; }
.code-text ul { list-style: none; padding: 0; }
.code-text li {
  padding: 6px 0; font-size: 0.88rem; color: var(--text-secondary);
  display: flex; align-items: center; gap: 8px;
}
.code-text li::before {
  content: ''; width: 6px; height: 6px;
  border-radius: 50%; background: var(--primary); flex-shrink: 0;
}
.code-block {
  background: var(--bg-code); border: 1px solid var(--border);
  border-radius: 10px; padding: 20px 24px; overflow-x: auto;
  font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; line-height: 1.65;
}
.code-block .kw { color: var(--primary); }
.code-block .st { color: var(--accent); }
.code-block .cm { color: var(--text-muted); font-style: italic; }
.code-block .fn { color: #d4a0e0; }
.code-header {
  display: flex; justify-content: space-between; padding: 8px 16px;
  background: var(--border); border-radius: 10px 10px 0 0;
  font-size: 0.76rem; color: var(--text-muted); font-family: 'JetBrains Mono', monospace;
}
.code-header + .code-block { border-radius: 0 0 10px 10px; margin-top: 0; }

/* ARCHITECTURE */
.arch-visual { display: flex; flex-direction: column; gap: 4px; max-width: 560px; margin: 0 auto; }
.arch-layer {
  padding: 18px 24px; border-radius: 10px;
  text-align: center; font-weight: 600; font-size: 0.95rem;
}
.arch-layer .desc { font-weight: 400; font-size: 0.8rem; opacity: 0.8; margin-top: 3px; }
.arch-arrow { text-align: center; color: var(--text-muted); font-size: 0.8rem; padding: 2px 0; }
.arch-caption { text-align: center; color: var(--text-muted); font-size: 0.82rem; margin-top: 20px; }

/* STATS */
.stats-row {
  display: flex; justify-content: center; gap: 48px; padding: 48px 24px;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.stat { text-align: center; }
.stat .num { font-size: 2rem; font-weight: 800; letter-spacing: -0.03em; color: var(--primary); }
.stat .label { font-size: 0.82rem; color: var(--text-muted); margin-top: 2px; }

/* PORTFOLIO */
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.portfolio-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden; transition: border-color 0.15s;
}
.portfolio-card:hover { border-color: var(--border-hover); }
.portfolio-card img {
  width: 100%; height: 180px; object-fit: cover;
  border-bottom: 1px solid var(--border);
}
.portfolio-card .card-body { padding: 20px; }
.portfolio-card h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 6px; }
.portfolio-card p { font-size: 0.84rem; color: var(--text-secondary); line-height: 1.5; }

/* FEATURE IMAGES */
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.feature-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden; transition: border-color 0.15s;
}
.feature-card:hover { border-color: var(--border-hover); }
.feature-card img {
  width: 100%; height: 220px; object-fit: cover;
  border-bottom: 1px solid var(--border);
}
.feature-card .card-body { padding: 24px; }
.feature-card h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 8px; }
.feature-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.55; }
.feature-card .btn { margin-top: 14px; font-size: 0.84rem; padding: 8px 18px; }

/* SHOWCASE (2-col image cards) */
.showcase-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 40px;
}
.showcase-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden;
}
.showcase-card img {
  width: 100%; height: 200px; object-fit: cover;
  border-bottom: 1px solid var(--border);
}
.showcase-card .card-body { padding: 18px; }
.showcase-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 4px; }
.showcase-card p { font-size: 0.84rem; color: var(--text-secondary); line-height: 1.5; }

/* PACKAGES (mosoptics) */
.pkg-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
  max-width: 800px; margin: 0 auto;
}
.pkg-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 18px 14px; text-align: center;
}
.pkg-name {
  font-family: 'JetBrains Mono', monospace; font-size: 0.85rem;
  font-weight: 600; color: var(--primary); margin-bottom: 4px;
}
.pkg-desc { font-size: 0.78rem; color: var(--text-secondary); }

/* CAPABILITIES (mosii) */
.cap-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
  max-width: 900px; margin: 0 auto; text-align: left;
}
.cap-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 16px 18px;
}
.cap-title {
  font-size: 0.78rem; font-weight: 600; color: var(--accent); margin-bottom: 4px;
}
.cap-desc { font-size: 0.82rem; color: var(--text-secondary); }

/* CALLOUT */
.callout {
  border-radius: 8px; padding: 14px 18px; margin: 0 auto 40px;
  font-size: 0.95rem; display: flex; gap: 10px; max-width: 800px;
  background: rgba(200,152,42,0.08); border-left: 3px solid var(--accent);
  color: var(--text-secondary);
}

/* STATUS BADGE */
.status-badge {
  display: inline-block; padding: 3px 10px; border-radius: 4px;
  font-size: 0.75rem; font-weight: 600;
  background: rgba(200,152,42,0.15); color: var(--accent);
}

/* PRINCIPLES */
.principle-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.principle { display: flex; gap: 14px; align-items: start; }
.principle-num {
  font-size: 1.4rem; font-weight: 800; color: var(--primary);
  opacity: 0.5; line-height: 1; min-width: 28px;
}
.principle h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 3px; }
.principle p { font-size: 0.84rem; color: var(--text-secondary); line-height: 1.5; }

/* ABOUT */
.about-section {
  display: flex; gap: 40px; align-items: center;
  max-width: 900px; margin: 0 auto;
}
.about-section img {
  width: 280px; height: 280px; object-fit: contain;
  border-radius: 12px; flex-shrink: 0;
}
.about-text h3 { font-size: 1.3rem; font-weight: 600; margin-bottom: 8px; }
.about-text p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.6; }

/* MASCOT (sidebar-style image) */
.mascot-img {
  max-width: 240px; border-radius: 12px;
  display: block; margin: 0 auto;
}

/* CTA */
.cta { text-align: center; padding: 80px 24px; }
.cta h2 { font-size: 2rem; font-weight: 700; margin-bottom: 8px; }
.cta p {
  color: var(--text-secondary); font-size: 1.05rem;
  margin-bottom: 28px; max-width: 500px; margin-left: auto; margin-right: auto;
}

/* FOOTER */
.footer {
  padding: 32px 24px; border-top: 1px solid var(--border);
  text-align: center; color: var(--text-muted); font-size: 0.82rem;
}
.footer a { color: var(--text-secondary); text-decoration: none; }
.footer a:hover { color: var(--text); }
.footer-links { display: flex; justify-content: center; gap: 24px; margin-bottom: 12px; }

/* RESPONSIVE */
@media (max-width: 768px) {
  .diff-grid, .eco-grid, .portfolio-grid { grid-template-columns: 1fr; }
  .feature-grid, .showcase-row { grid-template-columns: 1fr; }
  .principle-grid { grid-template-columns: 1fr; }
  .code-showcase { grid-template-columns: 1fr; }
  .pkg-grid { grid-template-columns: repeat(2, 1fr); }
  .cap-grid { grid-template-columns: 1fr; }
  .about-section { flex-direction: column; text-align: center; }
  .about-section img { width: 200px; height: 200px; }
  .hero h1 { font-size: 2.2rem; white-space: normal; }
  .stats-row { flex-wrap: wrap; gap: 24px; }
}