/* ============================================================
   Tech Cave — umbrella static site
   Dark, privacy-first theme
   Owner: Flynn | 2026-08-04
   ============================================================ */

:root {
  --bg: #0a0c10;
  --bg-alt: #10141b;
  --bg-card: #141a23;
  --border: #1f2937;
  --text: #e5e7eb;
  --text-dim: #9ca3af;
  --accent: #38bdf8;
  --accent-2: #22d3ee;
  --accent-cta: #10b981;
  --danger: #f87171;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, "Inter", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", "Fira Code", ui-monospace, Menlo, Consolas,
    monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

.container { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 12, 16, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 0; gap: 20px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand .logo {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; font-weight: 800; color: #04121a;
}
.brand a { color: var(--text); }
.brand a:hover { text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 22px; font-size: 0.95rem; }
.nav-links a { color: var(--text-dim); font-weight: 500; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-cta {
  background: var(--accent-cta); color: #04120c !important;
  padding: 8px 16px; border-radius: 8px; font-weight: 600;
}
.nav-cta:hover { background: #0dbf8a; text-decoration: none; }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.6rem; cursor: pointer; }

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; background: var(--bg-alt); border-bottom: 1px solid var(--border);
    padding: 16px 24px; gap: 16px; align-items: flex-start;
  }
  .nav-links.open { display: flex; }
}

/* ---------- Hero ---------- */
.hero {
  text-align: center; padding: 96px 24px 72px;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(56, 189, 248, 0.12), transparent 55%),
    radial-gradient(ellipse at 80% 0%, rgba(34, 211, 238, 0.10), transparent 55%),
    var(--bg);
}
.hero .eyebrow {
  text-transform: uppercase; letter-spacing: 0.22em; font-size: 0.78rem;
  color: var(--accent-2); font-weight: 600; margin-bottom: 18px;
}
.hero h1 { font-size: clamp(2.2rem, 6vw, 3.6rem); line-height: 1.12; font-weight: 800; margin-bottom: 20px; }
.hero p.lead { color: var(--text-dim); font-size: clamp(1.05rem, 2.4vw, 1.35rem); max-width: 720px; margin: 0 auto 34px; }
.btn-row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 13px 26px; border-radius: 10px;
  font-weight: 600; font-size: 1rem; transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn:hover { transform: translateY(-1px); text-decoration: none; }
.btn-primary { background: var(--accent-cta); color: #04120c; }
.btn-primary:hover { box-shadow: 0 6px 20px rgba(16, 185, 129, 0.35); }
.btn-ghost { border: 1px solid var(--border); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Sections ---------- */
.section { padding: 72px 24px; }
.section.alt { background: var(--bg-alt); border-block: 1px solid var(--border); }
.section .container { text-align: center; }
.section h2 { font-size: clamp(1.7rem, 4vw, 2.4rem); font-weight: 800; margin-bottom: 14px; }
.section .sub { color: var(--text-dim); max-width: 640px; margin: 0 auto 44px; }
.section .sub.left { text-align: left; margin: 0 0 24px; }

/* Cards grid */
.grid { display: grid; gap: 22px; text-align: left; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 860px) { .grid.cols-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; } }
.card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; transition: transform 0.15s ease, border-color 0.15s ease;
}
.card:hover { transform: translateY(-3px); border-color: #2b3a52; }
.card .icon { font-size: 1.6rem; margin-bottom: 12px; display: block; }
.card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.card p { color: var(--text-dim); font-size: 0.95rem; }

/* ---------- Pricing ---------- */
.pricing-grid { display: grid; gap: 22px; grid-template-columns: repeat(3, 1fr); }
@media (max-width: 860px) { .pricing-grid { grid-template-columns: 1fr; } }
.price-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; display: flex; flex-direction: column; gap: 16px; text-align: left;
}
.price-card.featured { border-color: var(--accent); box-shadow: var(--shadow); position: relative; }
.price-card.featured::before {
  content: "Most popular"; position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #04121a; font-size: 0.72rem; font-weight: 700;
  padding: 3px 12px; border-radius: 20px; letter-spacing: 0.04em;
}
.price-card .tier { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--accent-2); font-weight: 600; }
.price-card .amount { font-size: 2.6rem; font-weight: 800; }
.price-card .amount small { font-size: 1rem; color: var(--text-dim); font-weight: 500; }
.price-card ul { list-style: none; flex: 1; }
.price-card ul li { padding: 7px 0; color: var(--text-dim); font-size: 0.95rem; border-bottom: 1px solid rgba(31,41,55,0.4); }
.price-card ul li:last-child { border-bottom: none; }
.price-card ul li::before { content: "✓  "; color: var(--accent-cta); font-weight: 700; }
.price-card .btn { margin-top: 6px; text-align: center; }

/* ---------- Code / mono ---------- */
code, .mono {
  font-family: var(--mono); background: #0d1420; border: 1px solid var(--border);
  padding: 2px 6px; border-radius: 6px; font-size: 0.9em; color: var(--accent-2);
}
pre { background: #0d1420; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; overflow-x: auto; margin: 16px 0; }
pre code { background: none; border: none; padding: 0; }

/* ---------- Legal / prose pages ---------- */
.prose { max-width: 760px; margin: 0 auto; text-align: left; }
.prose h1 { font-size: 2rem; font-weight: 800; margin: 40px 0 8px; }
.prose .updated { color: var(--text-dim); font-size: 0.85rem; margin-bottom: 28px; }
.prose h2 { font-size: 1.3rem; font-weight: 700; margin: 30px 0 10px; color: var(--text); }
.prose h3 { font-size: 1.05rem; font-weight: 700; margin: 20px 0 8px; }
.prose p, .prose li { color: var(--text-dim); }
.prose p { margin-bottom: 14px; }
.prose ul, .prose ol { margin: 0 0 14px 22px; }
.prose li { margin-bottom: 6px; }
.prose strong { color: var(--text); }

/* ---------- Contact / forms ---------- */
.contact-grid { display: grid; gap: 32px; grid-template-columns: 1fr 1fr; text-align: left; }
@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-info h3 { margin-bottom: 8px; }
.contact-info p { color: var(--text-dim); margin-bottom: 10px; }
.contact-info a { word-break: break-all; }
.field { margin-bottom: 16px; }
.field label { display: block; margin-bottom: 6px; font-size: 0.9rem; color: var(--text-dim); }
.field input, .field textarea, .field select {
  width: 100%; background: #0d1420; border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); padding: 11px 13px; font-size: 0.95rem; font-family: var(--font);
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 44px 24px 28px; background: var(--bg-alt); }
.site-footer .container { display: flex; flex-wrap: wrap; gap: 28px; justify-content: space-between; }
.site-footer .cols { display: flex; gap: 48px; flex-wrap: wrap; }
.site-footer h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-dim); margin-bottom: 10px; }
.site-footer ul { list-style: none; }
.site-footer ul li { margin-bottom: 6px; }
.site-footer ul a { color: var(--text-dim); font-size: 0.9rem; }
.site-footer ul a:hover { color: var(--text); }
.site-footer .legal { width: 100%; margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--border); color: var(--text-dim); font-size: 0.82rem; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.site-footer .legal .abn { font-family: var(--mono); }

/* ---------- Status pill ---------- */
.pill { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 600; }
.pill.green { background: rgba(16,185,129,0.15); color: var(--accent-cta); }
.pill.cyan { background: rgba(56,189,248,0.15); color: var(--accent); }

/* ---------- Misc ---------- */
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }
.mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.small { font-size: 0.85rem; color: var(--text-dim); }
.rule { border: none; border-top: 1px solid var(--border); margin: 8px 0; }