/* ── withmerkava.com — Graphite Dawn ported from Merkava dashboard ─────── */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { min-height: 100vh; }

:root {
  /* Dawn tokens (default) */
  --bg-base: linear-gradient(135deg, #e6ecff 0%, #f5e9f2 45%, #fff0e3 100%);
  --bg-glow-a: radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.25), transparent 55%);
  --bg-glow-b: radial-gradient(circle at 10% 90%, rgba(59, 130, 246, 0.20), transparent 50%);
  --surface: rgba(255, 255, 255, 0.55);
  --surface-elevated: rgba(255, 255, 255, 0.75);
  --surface-border: rgba(255, 255, 255, 0.60);
  --surface-border-strong: rgba(15, 23, 42, 0.08);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --accent-gradient: linear-gradient(135deg, #6366f1, #ec4899);
  --accent-solid: #6366f1;
  --accent-solid-rgb: 99, 102, 241;
  --success: #16a34a;
  --warning: #ca8a04;
  --error: #dc2626;
  --highlight-inner: rgba(255, 255, 255, 0.80);
  --shadow-outer: rgba(15, 23, 42, 0.15);

  /* Scale */
  --space-1: 4px;  --space-2: 8px;  --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-7: 32px; --space-8: 40px;
  --space-9: 56px; --space-10: 80px;
  --radius-sm: 8px; --radius-md: 12px; --radius-lg: 16px; --radius-xl: 24px;

  /* Type */
  --font-primary: -apple-system, "SF Pro Display", system-ui, "Inter", sans-serif;
  --font-mono: "SF Mono", ui-monospace, Menlo, "JetBrains Mono", monospace;

  /* Layout */
  --page-max: 1200px;
}

[data-theme="graphite"] {
  --bg-base: radial-gradient(ellipse at 30% 10%, #1e293b, #030712 70%);
  --bg-glow-a: radial-gradient(circle at 75% 85%, rgba(56, 189, 248, 0.18), transparent 50%);
  --bg-glow-b: radial-gradient(circle at 15% 25%, rgba(168, 85, 247, 0.12), transparent 45%);
  --surface: rgba(255, 255, 255, 0.06);
  --surface-elevated: rgba(255, 255, 255, 0.10);
  --surface-border: rgba(255, 255, 255, 0.08);
  --surface-border-strong: rgba(255, 255, 255, 0.12);
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --accent-gradient: linear-gradient(135deg, #38bdf8, #a855f7);
  --accent-solid: #38bdf8;
  --accent-solid-rgb: 56, 189, 248;
  --success: #4ade80;
  --warning: #facc15;
  --error: #f87171;
  --highlight-inner: rgba(255, 255, 255, 0.10);
  --shadow-outer: rgba(0, 0, 0, 0.50);
}

/* ── Base body + background glows ─── */
body {
  font-family: var(--font-primary);
  color: var(--text-primary);
  background: var(--bg-base);
  background-attachment: fixed;
  transition: color 200ms ease, background 200ms ease;
  font-size: 16px;
  line-height: 1.6;
}
body::before, body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  transition: background 200ms ease;
}
body::before { background: var(--bg-glow-a); }
body::after  { background: var(--bg-glow-b); }

/* ── Typography scale ─── */
h1, h2, h3 { margin: 0; letter-spacing: -0.02em; font-weight: 700; }
h1 { font-size: clamp(40px, 7vw, 96px); line-height: 1.05; }
h2 { font-size: clamp(28px, 4vw, 56px); line-height: 1.1; }
h3 { font-size: 20px; font-weight: 600; line-height: 1.3; }
p  { margin: 0; }

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.label-mono {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--accent-solid);
}
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }

/* ── Glass primitives ─── */
.glass {
  background: var(--surface);
  backdrop-filter: blur(20px) saturate(170%);
  -webkit-backdrop-filter: blur(20px) saturate(170%);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  box-shadow:
    0 1px 0 var(--highlight-inner) inset,
    0 8px 24px -12px var(--shadow-outer);
}
.glass-elevated {
  background: var(--surface-elevated);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  box-shadow:
    0 1px 0 var(--highlight-inner) inset,
    0 12px 32px -12px var(--shadow-outer);
}

/* ── Layout ─── */
.container {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}
section {
  padding: var(--space-10) 0;
}

/* ── Nav ─── */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-4) var(--space-6);
  max-width: var(--page-max);
  margin: var(--space-4) auto var(--space-5);
  position: sticky;
  top: var(--space-4);
  z-index: 50;
}
.nav-brand {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  font-weight: 600;
  font-size: 18px;
  text-decoration: none;
  color: var(--text-primary);
}
.nav-links {
  display: flex;
  gap: var(--space-5);
  margin-left: auto;
  align-items: center;
}
.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}
.nav-links a:hover { color: var(--text-primary); }
.theme-toggle {
  background: none;
  border: 1px solid var(--surface-border);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}

/* ── Hero ─── */
.hero {
  text-align: left;
  padding-top: var(--space-8);
}
.hero-eyebrow { display: block; margin-bottom: var(--space-5); }
.hero h1 { margin-bottom: var(--space-6); max-width: 18ch; }
.hero p.lead {
  font-size: clamp(17px, 1.5vw, 20px);
  color: var(--text-secondary);
  max-width: 60ch;
  line-height: 1.55;
  margin-bottom: var(--space-7);
}
.hero-cta {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-block;
  background: var(--accent-gradient);
  color: white;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: transform 150ms ease, box-shadow 150ms ease;
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px -8px rgba(var(--accent-solid-rgb), 0.4);
}
.btn-ghost {
  display: inline-block;
  background: none;
  color: var(--text-primary);
  padding: 14px 24px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 500;
  font-size: 16px;
  border: 1px solid var(--surface-border);
}
.hero-stats {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-8);
  flex-wrap: wrap;
}
.hero-stat {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ── What-it-does 4-block grid ─── */
.layer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-7);
}
.layer {
  padding: var(--space-5);
  border-left: 2px solid var(--accent-solid);
}
.layer-n {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.10em;
  color: var(--accent-solid);
  margin-bottom: var(--space-2);
}
.layer h3 { margin-bottom: var(--space-3); }
.layer-chips { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-3); }
.chip {
  font-size: 11px;
  padding: 3px 8px;
  border: 1px solid var(--surface-border);
  border-radius: 999px;
  color: var(--text-secondary);
}
.services-strip {
  margin-top: var(--space-7);
  padding: var(--space-4) var(--space-5);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  overflow-x: auto;
}
.services-label {
  color: var(--accent-solid);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-right: var(--space-3);
}

/* ── Drive grid ─── */
.drive-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-7);
}
.drive-card {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.drive-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--accent-solid);
}
.drive-name { font-size: 22px; font-weight: 600; }
.drive-tag {
  font-size: 14px;
  color: var(--text-secondary);
  font-style: italic;
}
.drive-body { font-size: 14px; color: var(--text-secondary); line-height: 1.5; }

/* ── Beacon marquee ─── */
.marquee-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
  align-items: center;
  margin-top: var(--space-7);
}
.marquee-hero img {
  width: 100%;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 40px -16px var(--shadow-outer);
}
.marquee-bullets {
  list-style: none;
  padding: 0;
  margin: var(--space-5) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.marquee-bullets li {
  padding-left: var(--space-5);
  position: relative;
  color: var(--text-secondary);
}
.marquee-bullets li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-solid);
  font-weight: 700;
}

/* ── Showcase ─── */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.showcase-tile {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  text-decoration: none;
  color: inherit;
  transition: transform 150ms ease;
}
.showcase-tile:hover { transform: translateY(-2px); }
.showcase-tile img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: var(--surface);
}
.showcase-name { font-weight: 600; font-size: 16px; }
.showcase-cat {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ── How it works (3-step) ─── */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-6);
}
.step { padding: var(--space-5); }
.step-n {
  font-family: var(--font-mono);
  font-size: 52px;
  color: var(--accent-solid);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

/* ── Why-now bullets ─── */
.why-now {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-top: var(--space-6);
}
.why-bullet { display: flex; gap: var(--space-5); align-items: flex-start; }
.why-n {
  font-family: var(--font-mono);
  font-size: 48px;
  color: var(--accent-solid);
  flex-shrink: 0;
  min-width: 80px;
}
.why-body h3 { margin-bottom: var(--space-2); }
.why-body p { color: var(--text-secondary); }

/* ── FAQ ─── */
.faq-waitlist {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-7);
  margin-top: var(--space-6);
}
.faq-list { display: flex; flex-direction: column; gap: var(--space-4); }
details.faq {
  padding: var(--space-4) var(--space-5);
  cursor: pointer;
}
details.faq summary {
  font-weight: 600;
  font-size: 16px;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
details.faq summary::after {
  content: '+';
  font-size: 20px;
  color: var(--accent-solid);
  font-weight: 300;
}
details.faq[open] summary::after { content: '−'; }
details.faq p {
  margin-top: var(--space-3);
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.waitlist-form {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  height: fit-content;
  position: sticky;
  top: var(--space-7);
}
.waitlist-form h3 { margin-bottom: var(--space-2); }
.waitlist-form label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
  display: block;
}
.waitlist-form input,
.waitlist-form select {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 14px;
}
.waitlist-form input:focus,
.waitlist-form select:focus {
  outline: none;
  border-color: var(--accent-solid);
}
.waitlist-form button[type="submit"] {
  margin-top: var(--space-3);
}
.waitlist-msg {
  font-size: 13px;
  margin-top: var(--space-3);
  min-height: 1.2em;
}
.waitlist-msg.ok  { color: var(--success); }
.waitlist-msg.err { color: var(--error); }

/* ── Footer ─── */
footer {
  padding: var(--space-7) var(--space-6);
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  border-top: 1px solid var(--surface-border);
  margin-top: var(--space-10);
}
footer a { color: var(--text-muted); }

/* ── Responsive ─── */
@media (max-width: 900px) {
  .layer-grid { grid-template-columns: repeat(2, 1fr); }
  .drive-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .marquee-hero { grid-template-columns: 1fr; }
  .faq-waitlist { grid-template-columns: 1fr; }
  .waitlist-form { position: static; }
}
@media (max-width: 520px) {
  .layer-grid, .drive-grid, .showcase-grid { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-ghost { text-align: center; }
}