/* Shark School — landing page stylesheet.
   Editorial broadsheet aesthetic, mirrors the app's brand pack.
   No framework. ~5KB. */

:root {
  --bg: #0b0e0c;
  --card-bg: #131814;
  --card-bg-elev: #161c18;
  --hairline: #d4a43c;
  --hairline-soft: rgba(212, 164, 60, 0.30);
  --hairline-ghost: rgba(212, 164, 60, 0.18);
  --bone: #edeae1;
  --body: #d6ddd9;
  --muted: #8a9690;
  --ink: #5a6b60;
  --gold: #d4a43c;
  --gold-hi: #e0b95a;
  --oxblood: #a73d3d;
  --sage: #7a9c6e;

  --font-display: 'Instrument Serif', Georgia, Times, serif;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;
}

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

html, body {
  background: var(--bg);
  color: var(--body);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

body {
  background:
    radial-gradient(ellipse at 20% 0%, rgba(212,164,60,0.04), transparent 45%),
    radial-gradient(ellipse at 100% 100%, rgba(122,156,110,0.03), transparent 45%),
    var(--bg);
  background-attachment: fixed;
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 24px 64px;
  display: flex;
  flex-direction: column;
  gap: 64px;
}

/* ── Section eyebrow + rule ── */
.section-eyebrow {
  font-family: var(--font-sans);
  font-size: 13px; font-weight: 500;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  word-spacing: -0.04em;
  margin-bottom: 24px;
}

.rule {
  height: 1px;
  background: var(--hairline);
  opacity: 0.6;
  width: 64px;
  margin-bottom: 24px;
}

/* ── Masthead ── */
.masthead { text-align: center; padding-top: 24px; }

.dateline {
  font-family: var(--font-sans);
  font-size: 12px; font-weight: 500;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  word-spacing: -0.05em;
  margin-bottom: 32px;
  display: flex; justify-content: center; gap: 14px;
}
.dateline .dot { color: var(--ink); }

.title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(72px, 14vw, 144px);
  line-height: 0.95;
  color: var(--bone);
  letter-spacing: -0.01em;
  word-spacing: 0;
}
.title em {
  font-style: italic;
  color: var(--gold);
}

.lede {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(20px, 3vw, 26px);
  color: var(--muted);
  margin-top: 16px;
  letter-spacing: 0;
  word-spacing: 0;
}
.lede em { color: var(--bone); font-style: italic; }

/* ── Waitlist ── */
.waitlist { padding: 32px 0; }

.waitlist-copy {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 22px;
  color: var(--body);
  line-height: 1.4;
  max-width: 540px;
  margin-bottom: 28px;
}

.waitlist-form {
  display: flex; gap: 0;
  border: 1px solid var(--hairline-soft);
  background: var(--card-bg);
  width: 100%;
  max-width: 540px;
}
.waitlist-form input {
  flex: 1; min-width: 0;
  background: transparent;
  border: 0; outline: 0;
  color: var(--bone);
  font-family: var(--font-sans);
  font-size: 16px;
  padding: 18px 20px;
}
.waitlist-form input::placeholder {
  color: var(--ink);
}
.waitlist-form input:focus {
  background: rgba(212,164,60,0.04);
}
.waitlist-form button {
  background: var(--gold);
  color: var(--bg);
  border: 0;
  font-family: var(--font-sans);
  font-size: 13px; font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  word-spacing: -0.04em;
  padding: 0 28px;
  cursor: pointer;
  display: flex; align-items: center; gap: 10px;
  transition: background 120ms;
  white-space: nowrap;
}
.waitlist-form button:hover { background: var(--gold-hi); }
.waitlist-form button:disabled { opacity: 0.5; cursor: wait; }
.waitlist-form button .arrow { font-size: 18px; }

.form-status {
  margin-top: 16px;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 16px;
  min-height: 24px;
}
.form-status.ok { color: var(--sage); }
.form-status.err { color: var(--oxblood); }

.meta {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--ink);
  margin-top: 20px;
  letter-spacing: 0.02em;
}
.meta #signup-count {
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 14px;
}

/* ── Features ── */
.feature-grid {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.feature-grid li {
  padding: 28px 0;
  border-top: 1px solid var(--hairline-ghost);
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 20px;
  align-items: baseline;
}
.feature-grid li:last-child { border-bottom: 1px solid var(--hairline-ghost); }
.feature-grid .num {
  font-family: var(--font-display);
  font-size: 32px;
  color: var(--gold);
  text-align: right;
  line-height: 1;
}
.feature-grid h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 28px;
  color: var(--bone);
  line-height: 1.1;
  margin-bottom: 6px;
  letter-spacing: -0.005em;
}
.feature-grid p {
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--muted);
  line-height: 1.55;
}

/* ── Manifesto ── */
.manifesto-body {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--body);
  line-height: 1.5;
  display: flex; flex-direction: column; gap: 18px;
  max-width: 600px;
}
.manifesto-body em {
  font-style: italic;
  color: var(--gold);
}
.manifesto-body .signoff {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--muted);
  font-size: 18px;
  margin-top: 12px;
}

/* ── Compare ── */
.compare-rows { width: 100%; max-width: 600px; }
.compare-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 18px 0;
  border-top: 1px solid var(--hairline-ghost);
}
.compare-row:last-child { border-bottom: 1px solid var(--hairline-ghost); }
.compare-row .name {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--body);
}
.compare-row .price {
  font-family: var(--font-mono);
  font-size: 20px; font-weight: 500;
  color: var(--bone);
  letter-spacing: 0; word-spacing: 0;
}
.compare-row.hl {
  background: rgba(212,164,60,0.05);
  padding-left: 16px; padding-right: 16px;
  margin: 0 -16px;
}
.compare-row.hl .name em { color: var(--gold); font-style: italic; font-size: 28px; }
.compare-row.hl .price { color: var(--gold); font-size: 28px; font-weight: 600; }

/* ── Bottom CTA ── */
.bottom-cta { text-align: center; padding-top: 16px; }
.cta-link {
  font-family: var(--font-sans);
  font-size: 14px; font-weight: 600;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  word-spacing: -0.04em;
  text-decoration: none;
  border: 1px solid var(--gold);
  padding: 18px 32px;
  display: inline-flex; align-items: center; gap: 12px;
  transition: background 120ms, color 120ms;
}
.cta-link:hover { background: var(--gold); color: var(--bg); }
.cta-link .arrow { font-size: 18px; }

/* ── Footer ── */
.footer {
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--hairline-ghost);
  display: flex; flex-direction: column; gap: 12px;
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--ink);
}
.footer-row {
  display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 12px;
}
.footer-mark {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--gold);
  font-size: 18px;
}
.footer-mark span {
  font-style: normal;
  font-size: 14px;
  margin-left: 6px;
  opacity: 0.7;
}
.footer-links a {
  color: var(--ink);
  text-decoration: none;
  transition: color 120ms;
}
.footer-links a:hover { color: var(--bone); }
.footer-links .dot { margin: 0 8px; }

/* ── Responsive tweaks ── */
@media (max-width: 540px) {
  .container { padding: 48px 20px 56px; gap: 48px; }
  .feature-grid li { grid-template-columns: 56px 1fr; gap: 16px; padding: 22px 0; }
  .feature-grid .num { font-size: 24px; }
  .feature-grid h3 { font-size: 22px; }
  .feature-grid p { font-size: 14px; }
  .manifesto-body { font-size: 19px; }
  .compare-row .name { font-size: 18px; }
  .compare-row .price { font-size: 17px; }
  .compare-row.hl .name em { font-size: 22px; }
  .compare-row.hl .price { font-size: 22px; }
  .waitlist-form { flex-direction: column; }
  .waitlist-form input { padding: 16px 18px; }
  .waitlist-form button { padding: 16px; justify-content: center; border-top: 1px solid var(--hairline-soft); }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 1ms !important;
  }
}