/* Doku Studio — refined minimal.
   Each app keeps its own visual identity inside its own folder. */

:root {
  --bg: #F7F4ED;
  --bg-2: #FCFAF4;
  --ink: #1B1815;
  --ink-soft: #5C5750;
  --ink-faint: #8E8780;
  --rule: #E5DFD2;
  --rule-soft: #EFEAE0;
  --gold: #B68A3A;
  --serif: "New York", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Inter", "SF Pro Display", system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131210;
    --bg-2: #1B1A17;
    --ink: #ECE8DF;
    --ink-soft: #A6A19A;
    --ink-faint: #6F6A63;
    --rule: #2C2924;
    --rule-soft: #232220;
    --gold: #D9B16A;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Subtle paper grain */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(0, 0, 0, 0.025) 1px, transparent 1px);
  background-size: 3px 3px;
  z-index: 0;
}

@media (prefers-color-scheme: dark) {
  body::before {
    background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  }
}

/* Soft warm glow at top — gives the page a sense of depth */
body::after {
  content: "";
  position: fixed;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 120vw;
  height: 80vh;
  background: radial-gradient(ellipse 50% 60% at 50% 50%, rgba(182, 138, 58, 0.08), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

@media (prefers-color-scheme: dark) {
  body::after {
    background: radial-gradient(ellipse 50% 60% at 50% 50%, rgba(217, 177, 106, 0.06), transparent 70%);
  }
}

.page {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  padding: 96px 32px 56px;
}

/* Hero */
.hero {
  text-align: center;
  margin-bottom: 96px;
}

.mark {
  display: inline-block;
  width: 36px;
  height: 36px;
  margin: 0 auto 32px;
  position: relative;
}

.mark::before, .mark::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 0.5px solid var(--ink-faint);
}

.mark::after {
  inset: 8px;
  background: var(--gold);
  border: none;
  opacity: 0.9;
}

.wordmark {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0 0 28px;
}

.wordmark .dot {
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gold);
  margin: 0 0 3px 8px;
  vertical-align: middle;
}

.tagline {
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--ink);
  max-width: 520px;
  margin: 0 auto;
}

.tagline em {
  font-style: italic;
  color: var(--ink-soft);
}

/* Apps grid */
.apps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 96px;
  max-width: 380px;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 720px) {
  .apps:has(> :nth-child(2)) {
    grid-template-columns: 1fr 1fr;
    max-width: none;
  }
}

.app-card {
  position: relative;
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--bg-2);
  border: 0.5px solid var(--rule);
  border-radius: 18px;
  padding: 28px 26px 22px;
  transition: transform 280ms cubic-bezier(0.2, 0.8, 0.2, 1),
              border-color 280ms ease,
              box-shadow 280ms ease;
  overflow: hidden;
}

.app-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  opacity: 0.85;
  transition: opacity 280ms ease, height 280ms ease;
}

.app-card[data-app="lumen"]::before {
  background: linear-gradient(90deg, #ffd966 0%, #ffb84d 60%, #ff7a3d 100%);
}

.app-card[data-app="folio"]::before {
  background: linear-gradient(90deg, #d8d0bb 0%, #b8a886 50%, #5F8062 100%);
}

.app-card:hover {
  transform: translateY(-3px);
  border-color: var(--ink-faint);
  box-shadow: 0 18px 40px -20px rgba(0, 0, 0, 0.22);
}

.app-card:hover::before {
  opacity: 1;
  height: 3px;
}

.app-glyph {
  width: 36px;
  height: 36px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
}

.app-glyph svg {
  width: 22px;
  height: 22px;
  display: block;
}

.app-card[data-app="lumen"] .app-glyph {
  background: radial-gradient(circle at 50% 35%, #2c1f0d, #0a0807);
  border: 0.5px solid rgba(255, 217, 102, 0.20);
  box-shadow: 0 0 24px rgba(255, 184, 64, 0.22);
}

.app-card[data-app="lumen"] .app-glyph svg {
  fill: none;
  stroke: #ffd966;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.app-card[data-app="folio"] .app-glyph {
  background: linear-gradient(180deg, #f4ecd8, #e8dcc0);
  border: 0.5px solid rgba(95, 128, 98, 0.22);
}

@media (prefers-color-scheme: dark) {
  .app-card[data-app="folio"] .app-glyph {
    background: linear-gradient(180deg, #2a2823, #221f1a);
    border: 0.5px solid rgba(217, 177, 106, 0.18);
  }
}

.app-card[data-app="folio"] .app-glyph svg {
  fill: none;
  stroke: #5F8062;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (prefers-color-scheme: dark) {
  .app-card[data-app="folio"] .app-glyph svg {
    stroke: #8FB594;
  }
}

.app-name {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.015em;
  margin: 0 0 4px;
  color: var(--ink);
}

.app-tagline {
  font-size: 14.5px;
  color: var(--ink-soft);
  margin: 0 0 26px;
  line-height: 1.5;
}

.app-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 0.5px solid var(--rule-soft);
}

.app-platform {
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}

.app-cta {
  font-size: 13px;
  color: var(--gold);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.app-cta::after {
  content: "→";
  transition: transform 280ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.app-card:hover .app-cta::after {
  transform: translateX(4px);
}

/* Footer */
footer {
  text-align: center;
  color: var(--ink-faint);
  font-size: 13px;
  margin-top: 40px;
}

footer a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 0.5px solid var(--rule);
  padding-bottom: 1px;
  transition: border-color 200ms ease, color 200ms ease;
}

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

/* Mobile */
@media (max-width: 600px) {
  .page { padding: 64px 22px 48px; }
  .hero { margin-bottom: 64px; }
  .tagline { font-size: 30px; }
  .app-card { padding: 24px 22px 20px; }
  .app-name { font-size: 22px; }
  .apps { margin-bottom: 64px; }
}