/* Kinetic Gain Protocol Suite — Fleet Dashboard
   Self-contained dark theme matching suite.kineticgain.com */

:root {
  --emerald-300: #6ee7b7;
  --emerald-400: #34d399;
  --emerald-500: #10b981;
  --emerald-600: #059669;
  --emerald-700: #047857;
  --emerald-900: #064e3b;

  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  --slate-950: #020617;

  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, "JetBrains Mono", monospace;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  font-family: var(--font-body);
  background: var(--slate-950);
  color: var(--slate-200);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--emerald-400); text-decoration: none; }
a:hover { text-decoration: underline; }

.topnav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(15, 23, 42, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--slate-800);
}
.topnav-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 0.9rem 1.25rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
}
.brand { display: flex; align-items: center; gap: 0.75rem; color: #fff; text-decoration: none; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--emerald-500); color: var(--slate-900);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 800;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-size: 0.95rem; color: #fff; }
.brand-text small { font-size: 0.7rem; letter-spacing: 0.08em; color: var(--slate-400); font-family: var(--font-mono); margin-top: 2px; }

.nav-links { display: flex; align-items: center; gap: 1.25rem; }
.nav-links a { color: var(--slate-300); font-size: 0.9rem; font-weight: 500; }
.nav-links a:hover { color: var(--emerald-400); text-decoration: none; }
.nav-links .cta {
  padding: 0.45rem 0.9rem; border-radius: 8px;
  background: var(--emerald-500); color: var(--slate-900) !important; font-weight: 600;
}
.nav-links .cta:hover { background: var(--emerald-400); }
@media (max-width: 720px) { .nav-links a:not(.cta) { display: none; } }

.hero {
  background: radial-gradient(ellipse at top, var(--slate-900) 0%, var(--slate-950) 60%);
  color: var(--slate-100);
  padding: 5rem 1.25rem 4rem; text-align: center;
}
.hero-inner { max-width: 960px; margin: 0 auto; }
.pill {
  display: inline-block; padding: 0.3rem 0.85rem; border-radius: 999px;
  border: 1px solid var(--emerald-500); background: rgba(16, 185, 129, 0.1);
  color: var(--emerald-400); font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; font-family: var(--font-mono);
  margin-bottom: 1.5rem;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.6rem); line-height: 1.05;
  letter-spacing: -0.025em; font-weight: 800; color: #fff;
  margin: 0 0 1.5rem;
}
.hero h1 em { color: var(--emerald-400); font-style: italic; font-weight: 400; }
.lede {
  font-size: 1.05rem; color: var(--slate-300);
  max-width: 800px; margin: 0 auto 2.5rem; line-height: 1.65;
}
.stats {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 2rem;
  margin-top: 2rem;
}
.stat { display: flex; flex-direction: column; align-items: center; }
.stat-num {
  font-size: 3rem; font-weight: 800; color: var(--emerald-400);
  line-height: 1; font-family: var(--font-mono);
}
.stat-label {
  font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--slate-400); margin-top: 0.4rem; font-family: var(--font-mono);
}

.block, .block-dark { padding: 4rem 1.25rem; }
.block { background: var(--slate-900); color: var(--slate-200); }
.block-dark { background: var(--slate-950); color: var(--slate-200); }
.block-inner { max-width: 1200px; margin: 0 auto; }
.block h2, .block-dark h2 {
  color: #fff; font-size: 1.85rem; margin: 0 0 1rem; font-weight: 700;
}
.block-lede { color: var(--slate-300); font-size: 1.05rem; line-height: 1.6; margin: 0 0 2rem; }

/* Vertical cards */
.vertical-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.25rem;
}
.vertical-card {
  display: block;
  background: var(--slate-800); border: 1px solid var(--slate-700);
  border-radius: 12px; padding: 1.5rem;
  text-decoration: none; color: inherit;
  transition: border-color 120ms ease, transform 120ms ease;
}
.vertical-card:hover {
  border-color: var(--emerald-500); transform: translateY(-2px);
  text-decoration: none;
}
.vertical-card h3 { color: #fff; font-size: 1.1rem; margin: 0 0 0.5rem; }
.vertical-card-tagline { color: var(--slate-400); font-size: 0.85rem; line-height: 1.5; margin: 0 0 1rem; }
.vertical-card-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.8rem; color: var(--slate-400); margin: 0.5rem 0;
}
.vertical-card-meta span { color: var(--emerald-400); font-family: var(--font-mono); }
.vertical-card-innovation {
  display: inline-block; margin-top: 0.5rem;
  background: rgba(16, 185, 129, 0.1); border: 1px solid var(--emerald-700);
  padding: 0.2rem 0.6rem; border-radius: 999px;
  font-size: 0.7rem; color: var(--emerald-300); font-family: var(--font-mono);
}
.vertical-card-cta {
  display: block; margin-top: 1rem; color: var(--emerald-400);
  font-weight: 600; font-size: 0.9rem;
}

/* Shape table */
.shape-table-wrapper, .invariant-table-wrapper {
  overflow-x: auto; border: 1px solid var(--slate-800);
  border-radius: 12px;
}
.shape-table, .invariant-table {
  width: 100%; border-collapse: collapse;
  font-size: 0.88rem;
}
.shape-table thead th, .invariant-table thead th {
  background: var(--slate-900); color: var(--emerald-400);
  font-family: var(--font-mono); font-size: 0.72rem;
  text-transform: uppercase; letter-spacing: 0.08em;
  padding: 0.85rem 0.75rem; text-align: left;
  border-bottom: 2px solid var(--slate-800);
  position: sticky; top: 0;
}
.shape-table tbody td, .invariant-table tbody td {
  padding: 0.75rem; border-bottom: 1px solid var(--slate-800);
  vertical-align: top; color: var(--slate-200);
}
.shape-table tbody tr:hover, .invariant-table tbody tr:hover {
  background: rgba(15, 23, 42, 0.5);
}
.shape-table tbody td:first-child, .invariant-table tbody td:first-child {
  font-weight: 600; color: #fff; min-width: 220px;
}
.shape-table td a { color: var(--emerald-400); font-family: var(--font-mono); font-size: 0.8rem; }
.shape-table td a:hover { color: var(--emerald-300); }

.invariant-cell-scope {
  font-size: 0.78rem; color: var(--slate-300);
  font-family: var(--font-mono);
}
.invariant-na { color: var(--slate-500); font-style: italic; }

/* Tool cards */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}
.tool-card {
  background: var(--slate-800); border: 1px solid var(--slate-700);
  border-radius: 12px; padding: 1.75rem;
  transition: border-color 120ms ease;
}
.tool-card:hover { border-color: var(--emerald-500); }
.tool-card h3 {
  color: #fff; font-size: 1.1rem; margin: 0 0 0.5rem;
  font-family: var(--font-mono);
}
.tool-card h3 a { color: #fff; }
.tool-card-tagline { color: var(--slate-300); font-size: 0.95rem; margin: 0 0 1rem; line-height: 1.55; }
.tool-card-cli {
  display: block;
  font-family: var(--font-mono); font-size: 0.85rem;
  background: var(--slate-950); border: 1px solid var(--slate-700);
  padding: 0.6rem 0.85rem; border-radius: 6px; color: var(--emerald-400);
  margin-top: 0.5rem;
}

.cta-row {
  display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 1rem;
}
.btn {
  display: inline-block; padding: 0.85rem 1.6rem; border-radius: 10px;
  font-weight: 600; font-size: 0.95rem; text-decoration: none;
  border: 1px solid transparent;
  transition: transform 80ms ease, background 120ms ease, color 120ms ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--emerald-500); color: var(--slate-900); }
.btn-primary:hover { background: var(--emerald-400); color: var(--slate-900); }
.btn-secondary { border-color: var(--slate-700); color: #fff; background: var(--slate-800); }
.btn-secondary:hover { background: var(--slate-700); color: #fff; }

.footer {
  background: var(--slate-950); border-top: 1px solid var(--slate-800);
  padding: 2.5rem 1.25rem; color: var(--slate-400); text-align: center;
}
.footer-inner { max-width: 900px; margin: 0 auto; }
.footer p { margin: 0.5rem 0; }
.footer a { color: var(--emerald-400); }
.footer-fineprint { font-size: 0.8rem; color: var(--slate-500); }