/* ──────────────────────────────────────────────────────────────────────
   Vesperine - vesperine.app
   Cream paper, warmed. A candle-lit wash beneath quiet typography.
   Same house template as the other KSQ sites, recolored to the
   Ivory-to-Coal candle palette and tinted like Winnowed rather than
   left achromatic like Endured.
   ────────────────────────────────────────────────────────────────────── */

:root {
  /* Palette. House cream paper; candle stages warm the accents and wash. */
  --paper:        #FAF5EC;   /* page background; matches every KSQ site */
  --paper-deep:   #F0E6CB;   /* subtle inset, used for screenshot frames */
  --ink:          #2A2018;   /* primary text, a warm near-black */
  --muted:        #6E6155;   /* secondary text, warm taupe */
  --hairline:     rgba(90, 51, 24, 0.16);

  --amber:        #A87838;   /* signature accent: italics, numbers, hovers */
  --amber-deep:   #7E4F1E;
  --honey:        #EDC788;   /* wash only */
  --bronze:       #5A3318;   /* wash only */

  /* Type */
  --serif: 'Fraunces', Georgia, serif;
  --sans:  'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;

  /* Layout */
  --max-content: 720px;       /* prose pages */
  --max-wide:    1080px;      /* hero, screen grid */
  --gutter:      24px;
}

/* ───────────────────── Reset / base ───────────────────── */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--hairline);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: text-decoration-color 0.15s ease;
}
a:hover { text-decoration-color: var(--amber); }

p { margin: 0 0 1.2em 0; }
em { font-style: italic; }

/* ───────────────────── Ambient wash ─────────────────────
   A whisper of the candle palette behind the cream. Body background
   propagates to the canvas, so this fixed layer reads over it. */

.wash {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 900px 520px at 12% -8%,  rgba(237, 199, 136, 0.22), transparent 60%),
    radial-gradient(ellipse 720px 420px at 92% 6%,   rgba(168, 120, 56, 0.14), transparent 60%),
    radial-gradient(ellipse 820px 520px at 50% 112%, rgba(90, 51, 24, 0.12),   transparent 62%);
}

/* ───────────────────── Header ───────────────────── */

.site-header {
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 28px var(--gutter) 0;
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.brand {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 22px;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--ink);
}

.brand-tag {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.01em;
}

/* ───────────────────── Main containers ───────────────────── */

main {
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

main.prose { max-width: var(--max-content); }

main > section {
  padding: 80px 0;
  border-bottom: 1px solid var(--hairline);
}
main > section:first-child { padding-top: 80px; }
main > section:last-child  { border-bottom: none; }

/* ───────────────────── Hero ───────────────────── */

.hero {
  text-align: left;
  padding-top: 120px !important;
  padding-bottom: 100px !important;
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(48px, 8vw, 92px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 32px 0;
  max-width: 18ch;
}
.hero h1 em {
  font-style: italic;
  font-weight: 300;
  color: var(--amber);
}

.hero .lede {
  font-size: 20px;
  line-height: 1.55;
  color: var(--ink);
  max-width: 56ch;
  margin: 0 0 40px 0;
}

.hero .coming-soon {
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 0.02em;
  margin: 0;
}

.appstore-link {
  display: inline-block;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  padding: 10px 18px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  letter-spacing: 0.02em;
  transition: border-color 120ms ease, background 120ms ease;
}
.appstore-link:hover { border-color: var(--amber); }

/* ───────────────────── Section headings ───────────────────── */

main h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 14px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 32px 0;
}

main h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 12px 0;
  color: var(--ink);
}

/* ───────────────────── The idea ───────────────────── */

.idea { max-width: 64ch; }
.idea p { font-size: 19px; line-height: 1.65; }

/* ───────────────────── The app - screen grid ───────────────────── */

.screens-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 12px;
}

.screens-grid figure { margin: 0; }

.screens-grid img {
  width: 100%;
  border-radius: 28px;
  background: var(--paper-deep);
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.06),
    0 12px 32px rgba(42, 32, 24, 0.10);
}

.screens-grid figcaption {
  margin-top: 18px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.5;
  font-style: normal;
}
.screens-grid figcaption em {
  font-style: italic;
  color: var(--ink);
}

/* ───────────────────── Also - numbered features ───────────────────── */

.also-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin: 64px 0;
}
.also-item:first-of-type { margin-top: 12px; }
.also-item:nth-of-type(even) { direction: rtl; }
.also-item:nth-of-type(even) > * { direction: ltr; }

.also-item img {
  width: 100%;
  border-radius: 24px;
  background: var(--paper-deep);
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.06),
    0 12px 32px rgba(42, 32, 24, 0.10);
}

.also-num {
  display: block;
  font-family: var(--serif);
  font-size: 13px;
  color: var(--amber);
  letter-spacing: 0.18em;
  margin-bottom: 12px;
}

.also-text p {
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  margin: 0;
}

/* ───────────────────── Made by ───────────────────── */

.madeby { max-width: 60ch; }
.madeby p { font-size: 17px; line-height: 1.65; color: var(--ink); }

/* ───────────────────── Prose pages (privacy, support) ───────────────────── */

main.prose h1 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 80px 0 12px 0;
  color: var(--ink);
}

main.prose .updated {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 48px;
}

main.prose h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 22px;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--ink);
  margin: 56px 0 16px 0;
}

main.prose h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 18px;
  margin: 36px 0 8px 0;
}

main.prose p {
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink);
}

main.prose { padding-bottom: 100px; }

/* ───────────────────── Footer ───────────────────── */

.site-footer {
  border-top: 1px solid var(--hairline);
  margin-top: 0;
}

.footer-inner {
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 32px var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--muted);
}

.site-footer p { margin: 0; }
.site-footer nav { display: flex; gap: 24px; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover {
  text-decoration: underline;
  text-decoration-color: var(--amber);
  text-underline-offset: 3px;
}

/* ───────────────────── Fade-in on scroll ───────────────────── */

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
  will-change: opacity, transform;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
  will-change: auto;
}

@media (prefers-reduced-motion: reduce) {
  .fade-in, .fade-in.visible {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ───────────────────── Responsive ───────────────────── */

@media (max-width: 1000px) {
  .screens-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 800px) {
  body { font-size: 16px; }

  .hero {
    padding-top: 80px !important;
    padding-bottom: 64px !important;
  }
  .hero .lede { font-size: 18px; }

  main > section { padding: 56px 0; }

  .screens-grid { grid-template-columns: 1fr; gap: 40px; }

  .also-item {
    grid-template-columns: 1fr;
    gap: 24px;
    margin: 56px 0;
  }
  .also-item:nth-of-type(even) { direction: ltr; }

  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 520px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding-top: 20px;
  }
  .brand-tag { font-size: 12px; }
}