/* Triangula — Editorial Depth styling */

:root {
  --ink: #16110d;        /* darker for stronger contrast */
  --paper: #faf8f4;
  --paper-2: #ebe3d2;    /* visible jump from paper */
  --paper-3: #2a221c;    /* dark ink-paper for accent section */
  --paper-3-ink: #f0e9d8;
  --paper-3-soft: #a89e8a;
  --paper-3-rule: #4a3f33;
  --warm: #b8462a;        /* terracotta — punched up */
  --warm-2: #d96a47;
  --soft: #6b6354;
  --rule: #c8bfa9;        /* darker than before */
  --serif: 'Cormorant Garamond', Georgia, serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-weight: 300;
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

/* Subtle triangula background watermark — only on hero, max 4% opacity, geometric lines */
.hero {
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(135deg, transparent 47%, rgba(184, 70, 42, 0.10) 49%, rgba(184, 70, 42, 0.10) 51%, transparent 53%),
    linear-gradient(45deg, transparent 47%, rgba(184, 70, 42, 0.07) 49%, rgba(184, 70, 42, 0.07) 51%, transparent 53%),
    linear-gradient(0deg, transparent 49%, rgba(22, 17, 13, 0.05) 50%, rgba(22, 17, 13, 0.05) 51%, transparent 52%);
  background-size: 220px 280px, 220px 280px, 320px 220px;
  background-position: 0 0, 110px 0, 60px 80px;
  pointer-events: none;
  z-index: 0;
}

/* Decorative SVG triangle anchor — bottom-right of hero */
.hero::after {
  content: '';
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 320px;
  height: 320px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><polygon points='50,5 95,90 5,90' fill='none' stroke='%23b8462a' stroke-width='0.6' opacity='0.18'/><polygon points='50,25 80,80 20,80' fill='none' stroke='%23b8462a' stroke-width='0.4' opacity='0.12'/></svg>");
  background-repeat: no-repeat;
  pointer-events: none;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}

.container.narrow {
  max-width: 720px;
}

/* ─── Topbar ─── */

.topbar {
  border-bottom: 1px solid var(--rule);
  padding: 24px 0;
  position: sticky;
  top: 0;
  background: rgba(250, 248, 244, 0.92);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-family: var(--serif);
  font-size: 24px;
  font-style: italic;
  font-weight: 400;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 400;
  color: var(--soft);
  text-decoration: none;
  letter-spacing: 0.04em;
  text-transform: lowercase;
  transition: color 0.2s;
}

.nav a:hover { color: var(--ink); }

/* ─── Hero ─── */

.hero {
  padding: 120px 0 100px;
  border-bottom: 1px solid var(--rule);
}

.hero-inner { max-width: 820px; }

.kicker {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--soft);
  margin-bottom: 56px;
}

.title {
  font-family: var(--serif);
  font-size: clamp(56px, 9vw, 132px);
  font-weight: 400;
  line-height: 0.96;
  letter-spacing: -0.025em;
  margin-bottom: 40px;
}

.title em {
  font-style: italic;
  font-weight: 300;
  color: var(--warm);
}

.lede {
  font-family: var(--serif);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 300;
  line-height: 1.5;
  color: var(--ink);
  margin-bottom: 48px;
  max-width: 600px;
}

.caption {
  font-size: 13px;
  font-style: italic;
  color: var(--soft);
  margin-top: 8px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  margin-bottom: 12px;
}

.cta-primary {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  padding: 16px 36px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
}

.cta-primary:hover:not(:disabled) {
  background: var(--warm);
}

.cta-primary:disabled {
  background: var(--paper-3);
  color: var(--soft);
  cursor: not-allowed;
}

.cta-ghost {
  display: inline-block;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  padding: 16px 0;
  border-bottom: 1px solid var(--ink);
}

.cta-ghost:hover {
  color: var(--warm);
  border-bottom-color: var(--warm);
}

/* ─── Sections ─── */

.section {
  padding: 100px 0;
  border-top: 1px solid var(--rule);
}

.section:first-of-type {
  border-top: none;
}

.section-dark {
  background: var(--paper-3);
  color: var(--paper-3-ink);
  border-top: 1px solid var(--paper-3-rule);
  position: relative;
}

.section-dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(135deg, transparent 47%, rgba(184, 70, 42, 0.08) 49%, rgba(184, 70, 42, 0.08) 51%, transparent 53%),
    linear-gradient(45deg, transparent 47%, rgba(184, 70, 42, 0.06) 49%, rgba(184, 70, 42, 0.06) 51%, transparent 53%);
  background-size: 200px 260px, 200px 260px;
  background-position: 0 0, 100px 0;
  pointer-events: none;
}

.section-dark > .container {
  position: relative;
  z-index: 1;
}

.section-dark .section-num { color: var(--warm-2); }
.section-dark .section-title { color: var(--paper-3-ink); }
.section-dark .section-title em { color: var(--warm-2); }
.section-dark .arch-card {
  border-top-color: var(--paper-3-rule);
}
.section-dark .arch-card h3 { color: var(--paper-3-ink); }
.section-dark .arch-card p { color: var(--paper-3-ink); opacity: 0.82; }
.section-dark .arch-card[open] p { color: var(--paper-3-ink); opacity: 1; }
.section-dark .arch-traits { color: var(--paper-3-ink); opacity: 1; font-size: 13px; }
.section-dark .arch-traits em { color: var(--warm-2); font-style: italic; }
.section-dark .arch-num { color: var(--warm-2); }
.section-dark details[open] { background: rgba(255,255,255,0.02); }

.section-quiet {
  background: var(--paper-2);
  border-top: 1px solid var(--rule);
}

.section-num {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 400;
  font-style: italic;
  color: var(--warm);
  margin-bottom: 24px;
  letter-spacing: 0.04em;
  display: inline-block;
  padding: 4px 10px 4px 0;
  border-bottom: 2px solid var(--warm);
}

.section-dark .section-num {
  border-bottom-color: var(--warm-2);
  color: var(--warm-2);
}

.section-title {
  font-family: var(--serif);
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
}

.section-title.small {
  font-size: clamp(28px, 3.5vw, 40px);
  margin-bottom: 40px;
  text-align: center;
}

.section-title em {
  font-style: italic;
  color: var(--warm);
}

.prose {
  max-width: 640px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 300;
  line-height: 1.7;
}

.prose.narrow {
  font-size: 17px;
}

.prose p {
  margin-bottom: 24px;
}

/* ─── Archetype Grid ─── */

.archetype-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 28px 24px;
  margin-top: 32px;
}

.arch-card {
  border-top: 2px solid var(--ink);
  padding: 18px 4px 0;
  margin-bottom: 0;
  cursor: pointer;
  transition: background 0.2s;
}

.arch-card:hover { background: rgba(184, 70, 42, 0.04); }

.arch-card[open] {
  padding-bottom: 18px;
  background: rgba(184, 70, 42, 0.06);
}

.arch-num {
  font-family: var(--serif);
  font-size: 15px;
  font-style: italic;
  color: var(--warm);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.arch-card h3 {
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 400;
  font-style: italic;
  margin-bottom: 12px;
  letter-spacing: -0.015em;
}

.arch-card p {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 300;
  line-height: 1.55;
  color: var(--soft);
}

.arch-card[open] p { color: var(--ink); }

/* ─── Upload ─── */

.upload {
  margin-top: 48px;
  max-width: 560px;
}

.upload-zone {
  border: 1px dashed var(--rule);
  padding: 56px 32px;
  text-align: center;
  margin-bottom: 24px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.upload-zone:hover {
  border-color: var(--ink);
  background: var(--paper-2);
}

.upload-zone.has-file {
  border-style: solid;
  border-color: var(--ink);
  background: var(--paper-2);
}

.upload-headline {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 400;
  font-style: italic;
  margin-bottom: 8px;
}

.upload-sub {
  font-size: 13px;
  color: var(--soft);
}

.upload-status {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--warm);
  min-height: 20px;
  margin-bottom: 12px;
}

/* ─── What list ─── */

.what-list {
  list-style: none;
  margin-top: 24px;
}

.what-list li {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 300;
  line-height: 1.5;
  padding: 16px 0;
  border-top: 1px solid var(--rule);
  color: var(--ink);
}

.what-list li:last-child {
  border-bottom: 1px solid var(--rule);
}

/* ─── Archetype Card Mockup (sample output) ─── */

.card-mockup {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 48px;
  max-width: 760px;
  margin: 0 auto;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.card-mockup-inner {
  border: 1px solid var(--rule);
  padding: 36px 32px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--soft);
  padding-bottom: 24px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 32px;
}

.card-brand {
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink);
}

.card-eyebrow {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--warm);
  margin-bottom: 8px;
}

.card-title {
  font-family: var(--serif);
  font-size: 56px;
  font-weight: 400;
  font-style: italic;
  line-height: 1;
  margin-bottom: 12px;
  color: var(--ink);
}

.card-sub {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 300;
  color: var(--soft);
  margin-bottom: 32px;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 32px;
  margin-bottom: 32px;
}

.card-label {
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--warm);
  margin-bottom: 8px;
}

.card-grid p:not(.card-label) {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 300;
  line-height: 1.5;
  color: var(--ink);
}

.card-footer {
  font-family: var(--sans);
  font-size: 11px;
  font-style: italic;
  color: var(--soft);
  text-align: center;
  border-top: 1px solid var(--rule);
  padding-top: 20px;
  margin-top: 16px;
}

/* ─── Archetype accordion styling ─── */

.arch-card {
  border-top: 1px solid var(--ink);
  padding: 16px 0 0;
  margin-bottom: 0;
  cursor: pointer;
  transition: background 0.2s;
}

.arch-card[open] {
  padding-bottom: 16px;
  background: var(--paper);
}

.arch-card summary {
  list-style: none;
  cursor: pointer;
  padding-bottom: 12px;
}

.arch-card summary::-webkit-details-marker {
  display: none;
}

.arch-card summary p { display: inline-block; margin: 0; }
.arch-card summary h3 { display: inline-block; margin-left: 8px; }

.arch-card > p {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 300;
  line-height: 1.55;
  color: var(--soft);
  padding: 8px 0 8px;
}

.arch-traits {
  font-family: var(--sans) !important;
  font-size: 12px !important;
  color: var(--warm) !important;
  border-left: 2px solid var(--rule);
  padding-left: 12px !important;
  margin-top: 8px;
}

.arch-traits em {
  font-style: normal;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ink);
}

/* ─── Footer ─── */

.footer {
  padding: 64px 0 48px;
  text-align: center;
}

.footer p {
  font-family: var(--serif);
  font-size: 14px;
  font-style: italic;
  color: var(--soft);
  margin-bottom: 8px;
}

.footer a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
}

.footer a:hover {
  border-bottom-color: var(--ink);
}

.footer .caption {
  font-size: 12px;
  font-style: italic;
  color: var(--rule);
}

/* ─── Mobile / Tablet ─── */

@media (max-width: 980px) {
  .container { padding: 0 28px; }
  .topbar .container { padding: 0 28px; }
  .hero { padding: 88px 0 72px; }
  .section { padding: 80px 0; }
  .lede { font-size: 20px; }
  .card-mockup { padding: 32px; }
  .card-mockup-inner { padding: 28px 24px; }
  .card-title { font-size: 44px; }
}

@media (max-width: 720px) {
  .topbar { padding: 16px 0; }
  .topbar .container { padding: 0 20px; }
  .brand { font-size: 22px; }
  .nav { gap: 18px; }
  .nav a { font-size: 12px; letter-spacing: 0.03em; }

  .container { padding: 0 20px; }
  .hero { padding: 56px 0 48px; }
  .hero::after {
    right: -100px;
    bottom: -100px;
    width: 220px;
    height: 220px;
    opacity: 0.5;
  }

  .kicker { margin-bottom: 28px; font-size: 11px; }
  .title { margin-bottom: 28px; line-height: 1.02; }
  .lede { margin-bottom: 32px; font-size: 18px; }
  .cta-row { flex-direction: column; align-items: stretch; gap: 14px; }
  .cta-primary, .cta-ghost { text-align: center; padding: 16px 24px; }

  .section { padding: 56px 0; }
  .section-num { font-size: 16px; margin-bottom: 18px; padding: 2px 8px 2px 0; }
  .section-title { margin-bottom: 36px; }
  .section-title.small { margin-bottom: 28px; }

  .prose { font-size: 17px; }
  .prose.narrow { font-size: 16px; }

  .archetype-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .arch-card { padding: 16px 2px 0; }
  .arch-card h3 { font-size: 26px; }
  .arch-card p { font-size: 13px; }
  .arch-traits { font-size: 12px !important; }

  .upload { margin-top: 32px; }
  .upload-zone { padding: 36px 20px; }
  .upload-headline { font-size: 19px; }

  .what-list li { font-size: 18px; padding: 14px 0; }

  .card-mockup { padding: 20px; }
  .card-mockup-inner { padding: 24px 20px; }
  .card-title { font-size: 38px; }
  .card-sub { font-size: 16px; margin-bottom: 24px; }
  .card-grid { grid-template-columns: 1fr; gap: 18px; }
  .card-header { padding-bottom: 18px; margin-bottom: 22px; font-size: 10px; }

  .footer { padding: 48px 0 36px; }
}

@media (max-width: 480px) {
  .topbar .container { padding: 0 16px; }
  .brand { font-size: 20px; }
  .nav { gap: 12px; }
  .nav a { font-size: 11px; }

  .container { padding: 0 16px; }
  .hero { padding: 44px 0 40px; }
  .kicker { margin-bottom: 22px; }
  .lede { font-size: 17px; }
  .cta-row { gap: 10px; }

  .section { padding: 44px 0; }
  .section-title { margin-bottom: 28px; }
  .prose p { margin-bottom: 18px; }

  .archetype-grid { grid-template-columns: 1fr; gap: 18px; }
  .arch-card { padding: 14px 0 0; }
  .arch-card h3 { font-size: 24px; }

  .card-mockup { padding: 16px; }
  .card-mockup-inner { padding: 20px 16px; }
  .card-title { font-size: 32px; }
  .card-grid { gap: 16px; }

  .footer { padding: 40px 0 28px; }
  .footer p { font-size: 13px; }
}