/* Openly — calm, principled, editorial. Mirrors iOS brand tokens. */

:root {
  --base:        #EEEFF2;
  --base-deep:   #E3E5EA;
  --base-soft:   #F4F5F7;
  --ink:         #15171C;
  --ink-soft:    #3A3D45;
  --ink-muted:   #7A7E88;
  --rule:        #D2D5DC;
  --accent-1:    #3D4250;
  --brass:       #A07A36;
  --brass-soft:  #C19A53;
  --brass-deep:  #7A5C26;
  --success:     #3F7A5A;
  --error:       #A13B2C;
  --shadow:      rgba(21, 23, 28, 0.06);
  --shadow-deep: rgba(21, 23, 28, 0.10);

  --serif: ui-serif, "New York", "Charter", "Georgia", serif;
  --sans:  -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", system-ui, sans-serif;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--sans);
  background: var(--base);
  background-image:
    linear-gradient(180deg, var(--base-soft) 0%, var(--base) 240px),
    radial-gradient(1100px 600px at 50% -120px, rgba(160, 122, 54, 0.06), transparent 70%);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  font-weight: 400;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* ---------- shared atoms ---------- */

.bar {
  display: inline-block;
  width: 22px;
  height: 2px;
  background: var(--brass);
  margin-right: 10px;
  vertical-align: middle;
  transform: translateY(-2px);
}

.eyebrow {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.brass-dot {
  color: var(--brass);
}

.wordmark {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}

.wordmark .underscore {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--brass);
  margin-top: 4px;
}

.glass {
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  border: 1px solid rgba(210, 213, 220, 0.7);
  border-radius: 14px;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset, 0 12px 30px var(--shadow);
}

.muted { color: var(--ink-muted); }
.soft  { color: var(--ink-soft); }

a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--rule); transition: border-color .18s ease, color .18s ease; }
a:hover { color: var(--brass); border-bottom-color: var(--brass); }

/* ---------- shell ---------- */

.shell {
  max-width: 960px;
  margin: 0 auto;
  padding: 28px 28px 96px;
}

header.site {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 56px;
}

header.site .right {
  font-size: 13px;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
}

footer.site {
  margin-top: 96px;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  color: var(--ink-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  align-items: center;
}

footer.site a {
  color: var(--ink-muted);
  border-bottom: none;
}
footer.site a:hover { color: var(--brass); }

footer.site .sep { color: var(--rule); }

/* ---------- marketing one-pager ---------- */

.hero {
  text-align: left;
  padding: 24px 0 48px;
}

.hero .eyebrow {
  margin-bottom: 28px;
  display: inline-block;
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(44px, 7vw, 76px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 28px;
  max-width: 18ch;
}

.hero h1 .line {
  display: block;
}

.hero p.lede {
  font-family: var(--sans);
  font-size: clamp(17px, 1.6vw, 19px);
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 38ch;
  margin-bottom: 40px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  margin-bottom: 18px;
}

.app-store-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 22px;
  border-radius: 14px;
  background: var(--ink);
  color: #fff;
  font-family: var(--sans);
  border-bottom: none;
  box-shadow: 0 6px 20px rgba(21, 23, 28, 0.18);
  transition: transform .18s ease, box-shadow .18s ease;
}
.app-store-badge:hover {
  color: #fff;
  border-bottom: none;
  transform: translateY(-1px);
  box-shadow: 0 10px 26px rgba(21, 23, 28, 0.24);
}
.app-store-badge .apple-glyph {
  font-size: 24px;
  line-height: 1;
}
.app-store-badge .copy {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.app-store-badge .small {
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.75;
}
.app-store-badge .big {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.005em;
}

.price-line {
  color: var(--ink-muted);
  font-size: 14px;
  letter-spacing: 0.005em;
}

/* ---------- principles ---------- */

section.principles {
  margin-top: 80px;
  padding-top: 56px;
  border-top: 1px solid var(--rule);
}

section.principles .eyebrow {
  display: inline-block;
  margin-bottom: 28px;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.principle {
  padding: 30px 26px;
  border-radius: 14px;
}
.principle h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 28px;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 10px;
}
.principle h3 .brass-dot { color: var(--brass); }
.principle p {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.55;
}

/* ---------- models ---------- */

section.models {
  margin-top: 80px;
  padding-top: 56px;
  border-top: 1px solid var(--rule);
}

section.models .eyebrow {
  display: inline-block;
  margin-bottom: 28px;
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.model {
  padding: 22px 24px;
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.model .name {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.model .tag {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.5;
}
.model .ring {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 4px;
  font-weight: 600;
}
.model .ring::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brass);
}

.model.feature {
  grid-column: 1 / -1;
}

/* ---------- legal pages ---------- */

.legal {
  max-width: 720px;
}

.legal h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 38px;
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 8px;
}

.legal .subtitle {
  color: var(--ink-muted);
  font-size: 14px;
  margin-bottom: 36px;
}

.legal nav.toc {
  padding: 18px 22px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--rule);
  margin-bottom: 36px;
}
.legal nav.toc p.label {
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.legal nav.toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
  columns: 2;
  column-gap: 28px;
}
.legal nav.toc li { margin-bottom: 4px; }
.legal nav.toc a {
  font-size: 14px;
  color: var(--ink-soft);
  border-bottom: none;
}
.legal nav.toc a:hover { color: var(--brass); }

.legal h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 40px 0 14px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
}

.legal h3 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 15px;
  color: var(--ink);
  margin: 22px 0 8px;
  letter-spacing: 0;
}

.legal p { margin-bottom: 12px; font-size: 15px; color: var(--ink-soft); line-height: 1.65; }
.legal ul, .legal ol { margin: 8px 0 14px 22px; font-size: 15px; color: var(--ink-soft); line-height: 1.65; }
.legal li { margin-bottom: 6px; }
.legal strong { color: var(--ink); font-weight: 600; }

.legal table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0 18px;
  font-size: 14px;
}
.legal th, .legal td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--rule);
}
.legal th {
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.legal td { color: var(--ink); }

.legal .callout {
  padding: 14px 18px;
  border-radius: 10px;
  font-size: 14px;
  margin: 16px 0;
  border-left: 3px solid var(--brass);
  background: rgba(160, 122, 54, 0.06);
  color: var(--ink);
}
.legal .callout.note {
  border-left-color: var(--accent-1);
  background: rgba(61, 66, 80, 0.05);
  color: var(--ink-soft);
}
.legal .callout.warn {
  border-left-color: var(--error);
  background: rgba(161, 59, 44, 0.06);
  color: var(--ink);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-muted);
  border-bottom: none;
  font-size: 13px;
  margin-bottom: 28px;
}
.back-link:hover { color: var(--brass); border-bottom: none; }

/* ---------- support page ---------- */

.support-block {
  padding: 48px 42px;
  border-radius: 16px;
  margin-top: 32px;
  text-align: center;
}
.support-block h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 44px;
  letter-spacing: -0.015em;
  margin-bottom: 14px;
}
.support-block p {
  font-size: 17px;
  color: var(--ink-soft);
  margin-bottom: 28px;
  max-width: 36ch;
  margin-left: auto;
  margin-right: auto;
}
.support-block .button {
  display: inline-block;
  padding: 14px 28px;
  background: var(--ink);
  color: #fff;
  border-radius: 12px;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0;
  border-bottom: none;
  box-shadow: 0 6px 20px rgba(21, 23, 28, 0.18);
  transition: transform .18s ease, box-shadow .18s ease;
}
.support-block .button:hover {
  color: #fff;
  border-bottom: none;
  transform: translateY(-1px);
  box-shadow: 0 10px 26px rgba(21, 23, 28, 0.24);
}

/* ---------- responsive ---------- */

@media (max-width: 720px) {
  .shell { padding: 22px 20px 80px; }
  header.site { margin-bottom: 36px; }
  header.site .right { display: none; }

  .hero { padding: 12px 0 32px; }
  .hero h1 { font-size: 40px; }
  .hero p.lede { font-size: 17px; }

  .cta-row { gap: 14px; }

  section.principles { margin-top: 56px; padding-top: 40px; }
  section.models     { margin-top: 56px; padding-top: 40px; }

  .principle-grid { grid-template-columns: 1fr; gap: 12px; }
  .model-grid     { grid-template-columns: 1fr; }
  .model.feature  { grid-column: auto; }

  .legal h1 { font-size: 30px; }
  .legal nav.toc ul { columns: 1; }

  .support-block { padding: 36px 24px; }
  .support-block h1 { font-size: 34px; }
}