/* Emergent Enterprise — shared styles
   Each page declares its own --accent and --bg via [data-page] on <html> */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,400&family=JetBrains+Mono:wght@400;500&display=swap');

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

:root {
  --ink: #1a1814;
  --ink-2: #4a4640;
  --ink-3: #837e76;
  --ink-4: #b8b3a9;
  --rule: rgba(26, 24, 20, 0.10);
  --rule-strong: rgba(26, 24, 20, 0.22);
  --max: 980px;
  --max-narrow: 680px;
  --serif: 'Newsreader', 'Iowan Old Style', Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', monospace;
}

/* Per-page palettes — minimal, tonal */
[data-page="home"]     { --bg: #f4f3e6; --bg-2: #ebe9d2; --accent: #4a4d18; --accent-soft: rgba(74,77,24,0.10); }
[data-page="canvas"]   { --bg: #eef0f3; --bg-2: #e3e7ed; --accent: #2d3a4a; --accent-soft: rgba(45,58,74,0.07); }
[data-page="training"] { --bg: #ecefe8; --bg-2: #dfe4d9; --accent: #3a4a30; --accent-soft: rgba(58,74,48,0.07); }
[data-page="practice"] { --bg: #f1ebe5; --bg-2: #e6ddd2; --accent: #5a3a26; --accent-soft: rgba(90,58,38,0.07); }
[data-page="book"]     { --bg: #efebee; --bg-2: #e3dde2; --accent: #3e2a3a; --accent-soft: rgba(62,42,58,0.07); }
[data-page="about"]    { --bg: #f3ede5; --bg-2: #e8dfd1; --accent: #5a4a36; --accent-soft: rgba(90,74,54,0.07); }
[data-page="contact"]  { --bg: #ebe9e5; --bg-2: #ddd9d2; --accent: #1f1d1a; --accent-soft: rgba(31,29,26,0.06); }
[data-page="literacy"] { --bg: #f0efe8; --bg-2: #e4e2d8; --accent: #4a4038; --accent-soft: rgba(74,64,56,0.07); }
[data-page="sessions"] { --bg: #f0ece2; --bg-2: #e5dfce; --accent: #4a4020; --accent-soft: rgba(74,64,32,0.07); }
[data-page="profile"] { --bg: #faf7e1; --bg-2: #f2e9b8; --accent: #1a1814; --accent-soft: rgba(26, 24, 20, 0.06); }

html { background: var(--bg); }
body {
  font-family: var(--serif);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "kern", "liga", "calt";
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
a:not(.btn):not(.nav-links a):not(.brand):hover { color: var(--accent); }

/* ───────── Nav ───────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 0.5px solid var(--rule);
  backdrop-filter: saturate(140%) blur(8px);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  gap: 24px;
}
.brand {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-mark {
  display: inline-block;
  flex-shrink: 0;
  vertical-align: middle;
  object-fit: contain;
}
.nav .brand-mark { width: 45px; height: 45px; }
.footer-name .brand-mark { width: 32px; height: 32px; }
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-name { display: flex; align-items: center; gap: 8px; }
.nav-links {
  display: flex;
  gap: 4px;
  align-items: center;
}
.nav-links a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding: 8px 12px;
  border-radius: 4px;
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.active { color: var(--accent); background: var(--accent-soft); }
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.hamburger span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--ink-2);
  margin: 5px 0;
}

/* ───────── Layout ───────── */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 32px; }
.wrap-narrow { max-width: var(--max-narrow); margin: 0 auto; padding: 0 32px; }

/* ───────── Page header ───────── */
.page-head {
  padding: 96px 32px 64px;
  border-bottom: 0.5px solid var(--rule);
}
.page-head .wrap-narrow { padding: 0; }
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}
.eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--accent);
}
.page-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(36px, 5.5vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 24px;
  text-wrap: balance;
}
.page-title em {
  font-style: italic;
  color: var(--accent);
}
.page-lede {
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 580px;
  text-wrap: pretty;
}

/* ───────── Sections ───────── */
.section { padding: 80px 32px; border-bottom: 0.5px solid var(--rule); }
.section:last-of-type { border-bottom: none; }
.section.tinted { background: var(--bg-2); }

.section-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(26px, 3.5vw, 34px);
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin-bottom: 16px;
  text-wrap: balance;
}
.section-lede {
  font-size: 17px;
  color: var(--ink-2);
  line-height: 1.6;
  max-width: 580px;
  margin-bottom: 36px;
  text-wrap: pretty;
}

p + p { margin-top: 1em; }

/* ───────── Buttons ───────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 14px 22px;
  border: 0.5px solid var(--accent);
  color: var(--accent);
  background: transparent;
  border-radius: 2px;
  transition: all .2s;
  cursor: pointer;
  font-weight: 500;
}
.btn:hover { background: var(--accent); color: var(--bg); }
.btn.primary { background: var(--accent); color: var(--bg); }
.btn.primary:hover { background: var(--ink); border-color: var(--ink); }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(3px); }

/* ───────── Cards / lists ───────── */
.card {
  border: 0.5px solid var(--rule-strong);
  border-radius: 4px;
  padding: 28px;
  background: var(--bg);
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: var(--accent); }
.card-num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.card h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 20px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}
.card p {
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.6;
}
.card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border-bottom: 0.5px solid var(--accent);
  padding-bottom: 2px;
}

/* ───────── Footer ───────── */
.footer {
  padding: 64px 32px 48px;
  background: var(--accent);
  color: rgba(255,255,255,0.72);
}
.footer .wrap { max-width: var(--max); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.footer h5 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 14px;
  font-weight: 500;
}
.footer-name {
  font-family: var(--serif);
  font-size: 18px;
  color: #fff;
  margin-bottom: 6px;
  font-weight: 500;
}
.footer p { font-size: 14px; line-height: 1.7; }
.footer a {
  color: rgba(255,255,255,0.72);
  display: block;
  font-size: 13px;
  padding: 4px 0;
  transition: color .2s;
}
.footer a:hover { color: #fff; }
.footer-bottom {
  border-top: 0.5px solid rgba(255,255,255,0.15);
  margin-top: 48px;
  padding-top: 24px;
  font-size: 11px;
  color: rgba(255,255,255,0.4);
  line-height: 1.7;
}

/* ───────── Utility ───────── */
.divider-mark {
  width: 24px; height: 1px;
  background: var(--accent);
  margin: 0 0 20px;
}
.placeholder {
  background:
    repeating-linear-gradient(135deg,
      transparent 0 14px,
      var(--accent-soft) 14px 15px);
  border: 0.5px solid var(--rule);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  text-align: center;
  padding: 24px;
}

/* ───────── Responsive ───────── */
@media (max-width: 760px) {
  .nav-inner { padding: 14px 20px; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 20px 20px;
    background: var(--bg);
    border-bottom: 0.5px solid var(--rule);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 8px; }
  .hamburger { display: block; }
  .page-head { padding: 60px 20px 48px; }
  .section { padding: 56px 20px; }
  .wrap, .wrap-narrow { padding: 0 20px; }
  .footer { padding: 48px 20px 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
