/* ──────────────────────────────────────────────────────────
   Tuneless.tech — shared design system
   Loaded by every static page under landing/.
   No build step. Pure CSS + custom properties.
   ────────────────────────────────────────────────────────── */

:root {
  --bg-0:        #0a0a0d;
  --bg-1:        #131318;
  --bg-2:        #1c1c24;
  --text-0:      #f4f4f8;
  --text-1:      #c8c8d2;
  --text-2:      #82828c;
  --accent:      #3b82f6;
  --accent-2:    #60a5fa;
  --green:       #22c55e;
  --red:         #ef4444;
  --yellow:      #eab308;
  --border:      rgba(255,255,255,0.08);
  --display:     'Inter', system-ui, sans-serif;
  --mono:        'JetBrains Mono', ui-monospace, monospace;
  --nav-height:  64px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  background: var(--bg-0);
  color: var(--text-0);
  font-family: var(--display);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-height) + 16px); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ── Layout ───────────────────────────────────────────── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
section { padding: 96px 0; border-top: 1px solid var(--border); }
section:first-of-type { border-top: none; padding-top: 0; }

.eyebrow {
  font-family: var(--mono); font-size: 11px; font-weight: 700;
  letter-spacing: 2px; color: var(--accent); text-transform: uppercase;
  margin-bottom: 16px;
}
h1, h2, h3, h4 { letter-spacing: -0.02em; line-height: 1.1; }
h1 { font-size: clamp(40px, 6vw, 76px); font-weight: 900; }
h2 { font-size: clamp(32px, 4vw, 48px); font-weight: 800; margin-bottom: 16px; }
h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
h4 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
p  { font-size: 16px; color: var(--text-1); }
p.lead { font-size: 20px; color: var(--text-1); max-width: 640px; margin: 0 auto; }

/* ── Nav ──────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,10,13,0.85); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; max-width: 1140px; margin: 0 auto;
  min-height: var(--nav-height);
}
.logo {
  font-family: var(--mono); font-size: 16px; font-weight: 800; letter-spacing: 1px;
}
.logo .dot { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 14px; }
.nav-links a { color: var(--text-1); font-weight: 500; transition: color 0.15s; }
.nav-links a:hover { color: var(--text-0); }
.nav-links a[aria-current="page"] { color: var(--text-0); }
.nav-cta {
  background: var(--accent); color: #fff !important; padding: 9px 18px;
  border-radius: 6px; font-weight: 700; font-size: 13px;
  transition: filter 0.15s, transform 0.05s;
}
.nav-cta:hover { filter: brightness(1.1); }
.nav-signin {
  color: var(--text-0) !important;
  font-weight: 600;
}

/* ── Hero ─────────────────────────────────────────────── */
.hero {
  padding: 120px 0 96px;
  background:
    radial-gradient(circle at 30% 20%, rgba(59,130,246,0.18), transparent 50%),
    radial-gradient(circle at 70% 60%, rgba(34,197,94,0.10), transparent 50%);
  text-align: center;
}
.hero h1 { margin-bottom: 24px; }
.hero h1 .grad {
  background: linear-gradient(180deg, #fff 30%, #3b82f6);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-cta { margin-top: 40px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-foot {
  margin-top: 24px;
  font-family: var(--mono); font-size: 11px; color: var(--text-2); letter-spacing: 1px;
}

/* Smaller hero variant for non-home pages */
.page-hero {
  padding: 80px 0 56px;
  text-align: center;
  background: radial-gradient(circle at 50% 0%, rgba(59,130,246,0.10), transparent 60%);
}
.page-hero h1 { font-size: clamp(32px, 5vw, 56px); margin-bottom: 16px; }

/* ── Buttons ──────────────────────────────────────────── */
.btn {
  padding: 14px 28px; font-size: 15px; font-weight: 700; letter-spacing: 0.2px;
  border-radius: 8px; border: none; cursor: pointer;
  font-family: var(--display);
  display: inline-block; text-align: center;
  transition: filter 0.15s, transform 0.05s, border-color 0.15s;
}
.btn.primary    { background: var(--accent); color: #fff; }
.btn.primary:hover { filter: brightness(1.1); }
.btn.secondary  { background: transparent; color: var(--text-0); border: 1px solid var(--border); }
.btn.secondary:hover { border-color: var(--text-1); }
.btn.sm { padding: 10px 18px; font-size: 13px; }

/* ── Compatibility pill ───────────────────────────────── */
.compat {
  margin: 56px auto 0; max-width: 720px;
  display: flex; align-items: center; justify-content: center; gap: 12px;
  padding: 14px 20px; background: var(--bg-1); border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--mono); font-size: 12px; color: var(--text-1);
}
.compat .ok { color: var(--green); font-weight: 700; }

/* ── Feature grid ─────────────────────────────────────── */
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px; margin-top: 56px;
}
.feature {
  background: var(--bg-1); border: 1px solid var(--border);
  border-radius: 12px; padding: 28px;
}
.feature-icon {
  width: 40px; height: 40px; border-radius: 8px;
  background: rgba(59,130,246,0.15);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.feature-icon svg { width: 22px; height: 22px; color: var(--accent); }

/* ── How it works ─────────────────────────────────────── */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; margin-top: 56px; }
.step { position: relative; padding: 24px 24px 28px; background: var(--bg-1); border: 1px solid var(--border); border-radius: 12px; }
.step-num {
  position: absolute; top: -14px; left: 24px;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 12px; font-weight: 800;
}

/* ── Pricing ──────────────────────────────────────────── */
.pricing-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px; margin-top: 48px;
}
.price-card {
  background: var(--bg-1); border: 1px solid var(--border);
  border-radius: 12px; padding: 32px 28px; position: relative;
  display: flex; flex-direction: column;
  scroll-margin-top: calc(var(--nav-height) + 24px);
}
.price-card.popular {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 20px 40px -20px rgba(59,130,246,0.3);
}
.price-card.popular::before {
  content: 'MOST POPULAR';
  position: absolute; top: -10px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #fff;
  padding: 3px 12px; border-radius: 4px;
  font-family: var(--mono); font-size: 10px; font-weight: 700; letter-spacing: 1px;
}
.price-tier { font-family: var(--mono); font-size: 12px; color: var(--text-2); letter-spacing: 2px; }
.price-amount {
  margin: 16px 0 4px;
  font-size: 44px; font-weight: 800; letter-spacing: -1px;
}
.price-amount .unit { font-size: 14px; color: var(--text-2); font-weight: 500; }
.price-yearly { font-size: 12px; color: var(--text-2); margin-bottom: 24px; }
.price-features { list-style: none; flex: 1; }
.price-features li {
  padding: 10px 0; font-size: 14px; color: var(--text-1);
  display: flex; align-items: flex-start; gap: 10px;
  border-bottom: 1px solid var(--border);
}
.price-features li::before {
  content: '✓'; color: var(--green); font-weight: 800; flex-shrink: 0;
}
.price-features li.muted { color: var(--text-2); }
.price-features li.muted::before { content: '·'; color: var(--text-2); }
.price-card .btn { margin-top: 24px; width: 100%; }

/* ── Pricing compare table (pricing.html) ─────────────── */
.compare-wrap {
  margin-top: 48px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 12px;
  /* Subtle fade to hint horizontal scroll on overflow */
  background: var(--bg-1);
  border: 1px solid var(--border);
}
.compare-table {
  width: 100%; min-width: 640px;
  border-collapse: collapse;
  font-size: 14px;
}
.compare-table th, .compare-table td {
  padding: 14px 18px; text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.compare-table thead th {
  background: var(--bg-2); font-weight: 700; color: var(--text-0);
  font-family: var(--mono); font-size: 12px; letter-spacing: 1.5px;
  text-transform: uppercase;
}
.compare-table tbody td { color: var(--text-1); }
.compare-table tbody th {
  font-weight: 600; color: var(--text-0); font-size: 13px;
  background: rgba(255,255,255,0.02);
}
.compare-table td.yes { color: var(--green); font-weight: 700; }
.compare-table td.no  { color: var(--text-2); }
.compare-table tr:last-child th, .compare-table tr:last-child td { border-bottom: none; }
@media (max-width: 720px) {
  .compare-table { font-size: 12px; }
  .compare-table th, .compare-table td { padding: 10px 12px; }
}

/* ── FAQ ──────────────────────────────────────────────── */
.faq { max-width: 800px; margin: 56px auto 0; }
.faq-item {
  background: var(--bg-1); border: 1px solid var(--border);
  border-radius: 10px; padding: 24px 28px; margin-bottom: 12px;
}
.faq-q { font-weight: 700; font-size: 17px; margin-bottom: 8px; }
.faq-a { color: var(--text-1); font-size: 15px; }

/* ── Disclaimer banner ────────────────────────────────── */
.disclaimer {
  background: rgba(234,179,8,0.08);
  border: 1px solid rgba(234,179,8,0.3);
  border-radius: 8px; padding: 16px 20px;
  max-width: 720px; margin: 0 auto;
  font-size: 13px; color: var(--text-1);
  text-align: left;
}
.disclaimer strong { color: var(--yellow); }

/* ── Prose (legal pages, long-form copy) ──────────────── */
.prose { max-width: 760px; margin: 0 auto; }
.prose h2 {
  font-size: 24px; font-weight: 800;
  margin: 48px 0 16px;
  scroll-margin-top: calc(var(--nav-height) + 24px);
}
.prose h2:first-child { margin-top: 0; }
.prose h3 {
  font-size: 18px; font-weight: 700; color: var(--text-0);
  margin: 28px 0 8px;
}
.prose p, .prose li { font-size: 15px; color: var(--text-1); line-height: 1.7; }
.prose p { margin-bottom: 14px; }
.prose ul, .prose ol { padding-left: 24px; margin-bottom: 14px; }
.prose li { margin-bottom: 6px; }
.prose strong { color: var(--text-0); }
.prose a { color: var(--accent); }
.prose a:hover { color: var(--accent-2); text-decoration: underline; }
.prose code {
  font-family: var(--mono); font-size: 13px;
  background: var(--bg-1); padding: 2px 6px; border-radius: 4px;
  color: var(--text-0);
}
.prose hr { border: none; border-top: 1px solid var(--border); margin: 36px 0; }

.draft-banner {
  background: rgba(234,179,8,0.08);
  border: 1px solid rgba(234,179,8,0.3);
  border-radius: 8px; padding: 14px 18px;
  margin: 0 auto 32px; max-width: 760px;
  font-family: var(--mono); font-size: 12px; color: var(--yellow);
  letter-spacing: 0.5px;
}

/* ── Centered headers ─────────────────────────────────── */
.section-head { text-align: center; max-width: 720px; margin: 0 auto; }

/* ── Footer ───────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
  text-align: center;
  font-family: var(--mono); font-size: 11px;
  color: var(--text-2); letter-spacing: 0.5px;
}
footer a { color: var(--text-1); margin: 0 12px; transition: color 0.15s; }
footer a:hover { color: var(--text-0); }

/* ── Utility ──────────────────────────────────────────── */
.center  { text-align: center; }
.mt-32   { margin-top: 32px; }
.muted   { color: var(--text-2); }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 720px) {
  section { padding: 64px 0; }
  .hero { padding: 80px 0 64px; }
  .page-hero { padding: 56px 0 40px; }
  /* Hide nav text links on mobile; keep brand + CTA */
  .nav-links a:not(.nav-cta):not(.nav-signin) { display: none; }
  .nav-links { gap: 12px; }
  .nav-cta { padding: 8px 14px; font-size: 12px; }
  .nav-signin { font-size: 13px; }
  .features-grid, .steps, .pricing-grid { gap: 16px; }
  .feature, .step, .price-card { padding: 24px; }
  .compat { font-size: 11px; padding: 12px 16px; }
  .hero-cta .btn { width: 100%; }
  footer a { display: inline-block; margin: 4px 8px; }
}