/* ============================================================
   Pile — design system
   Editorial · warm · tactile · quiet
   ============================================================ */

:root {
  /* Surfaces */
  --bg:        #F2EEE6;   /* warm cream paper */
  --bg-elev:   #F8F5EE;   /* a half-shade lighter */
  --bg-deep:   #ECE7DD;   /* slight recess */

  /* Ink */
  --ink:       #1F1A15;   /* warm near-black */
  --ink-2:     #6E665C;   /* secondary, warm gray */
  --ink-3:     #A8A095;   /* tertiary / hint */
  --rule:      #E2DCCF;   /* hairline */

  /* Shadow — warm, soft, never blue */
  --shadow-lg: 0 36px 90px -28px rgba(60, 44, 28, 0.22),
               0 8px 24px -12px rgba(60, 44, 28, 0.10);
  --shadow-md: 0 14px 40px -16px rgba(60, 44, 28, 0.18);

  /* Type families */
  --serif: 'Fraunces', 'Iowan Old Style', 'Times New Roman', Georgia, serif;
  --sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;

  /* Geometry */
  --rad-lg:    34px;
  --rad-md:    16px;
  --rad-sm:    8px;
  --pad:       clamp(22px, 5.5vw, 88px);
  --gap-sec:   clamp(80px, 13vw, 180px);
  --max:       1280px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:        #15120E;
    --bg-elev:   #1C1814;
    --bg-deep:   #100D0A;
    --ink:       #ECE6DA;
    --ink-2:     #8B8275;
    --ink-3:     #565049;
    --rule:      #2A2520;
    --shadow-lg: 0 36px 90px -28px rgba(0, 0, 0, 0.7),
                 0 8px 24px -12px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 14px 40px -16px rgba(0, 0, 0, 0.5);
  }
}

/* ---------- Reset / base ---------- */

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.65;
  font-feature-settings: "ss01", "ss02", "kern";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1px;
  transition: border-color 200ms ease, color 200ms ease;
}
a:hover { border-bottom-color: var(--ink); }
a:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
  border-radius: 3px;
}

/* ---------- Type system ---------- */

.display {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(40px, 7vw, 80px);
  line-height: 1.04;
  letter-spacing: -0.018em;
  margin: 0;
}
.display em { font-style: italic; font-weight: 400; }

.display-sm {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(28px, 4.4vw, 46px);
  line-height: 1.1;
  letter-spacing: -0.012em;
  margin: 0;
}
.display-sm em { font-style: italic; font-weight: 400; }

.lede {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(19px, 1.8vw, 22px);
  line-height: 1.5;
  color: var(--ink-2);
  margin: 28px 0 36px;
  max-width: 32ch;
}

.body {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 38ch;
}

.caps {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* Quiet inline link */
.quiet-link {
  display: inline-block;
  margin-top: 28px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 19px;
  color: var(--ink);
  border-bottom: 1px solid var(--ink-3);
}
.quiet-link:hover { border-bottom-color: var(--ink); }

/* ---------- Masthead ---------- */

.masthead {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px var(--pad) 0;
  max-width: var(--max);
  margin: 0 auto;
}

.wordmark {
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: var(--ink);
}

.masthead-nav, .footer-nav {
  display: flex;
  gap: 28px;
}
.masthead-nav a, .footer-nav a {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  border-bottom: none;
}
.masthead-nav a:hover, .footer-nav a:hover { color: var(--ink); }

/* ---------- Hero ---------- */

.hero {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(40px, 5vw, 80px);
  align-items: center;
  padding: clamp(60px, 9vw, 130px) var(--pad) clamp(40px, 6vw, 80px);
  max-width: var(--max);
  margin: 0 auto;
}

.hero-text { max-width: 30ch; }

.hero-text .caps { margin-bottom: 20px; display: block; }

.hero-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 40px;
}

/* App Store badge — clearly a placeholder until you swap in Apple's SVG */
.appstore-placeholder {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  padding: 12px 22px;
  background: var(--ink);
  color: var(--bg);
  border-radius: 12px;
  border: none;
  line-height: 1.1;
  min-width: 168px;
}
.appstore-placeholder .caps {
  font-size: 9.5px;
  color: var(--bg);
  opacity: 0.65;
  letter-spacing: 0.22em;
}
.appstore-placeholder .store {
  font-family: var(--serif);
  font-style: italic;
  font-size: 21px;
  margin-top: 3px;
}
.appstore-placeholder:hover { opacity: 0.88; }

.hero-image {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-image img {
  border-radius: var(--rad-lg);
  box-shadow: var(--shadow-lg);
  max-height: 760px;
  width: auto;
  background: var(--bg-elev);
}

/* The gesture legend — echoes the app's bottom bar */
.gesture-strip {
  margin-top: clamp(40px, 6vw, 80px);
  padding: 18px var(--pad);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  display: flex;
  justify-content: center;
  gap: clamp(16px, 3vw, 40px);
  flex-wrap: wrap;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ---------- Feature sections ---------- */

.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 100px);
  align-items: center;
  padding: var(--gap-sec) var(--pad);
  max-width: var(--max);
  margin: 0 auto;
}

.feature--left .feature-text  { order: 1; }
.feature--left .feature-image { order: 2; }
.feature--right .feature-image { order: 1; }
.feature--right .feature-text  { order: 2; }

.feature-text     { max-width: 38ch; }
.feature-text .caps { display: block; margin-bottom: 18px; }
.feature-text p   { color: var(--ink-2); margin: 22px 0 0; }

.feature-image img {
  border-radius: var(--rad-lg);
  box-shadow: var(--shadow-lg);
  max-height: 700px;
  width: auto;
  margin: 0 auto;
  background: var(--bg-elev);
}

/* ---------- Privacy callout ---------- */

.privacy {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--gap-sec) var(--pad);
}

.privacy .caps { display: block; margin-bottom: 18px; }
.privacy .display { margin-bottom: 44px; max-width: 18ch; }

.privacy-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--rule);
}

.privacy-list li {
  padding: 22px 0;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-2);
  font-size: 17px;
  display: flex;
  gap: 24px;
}

.privacy-list .num {
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink-3);
  flex-shrink: 0;
  min-width: 28px;
}

/* ---------- Made by ---------- */

.made-by {
  max-width: 640px;
  margin: 0 auto;
  padding: var(--gap-sec) var(--pad);
}
.made-by .caps { display: block; margin-bottom: 14px; }
.made-by p { color: var(--ink-2); margin: 22px 0 0; max-width: 50ch; }

/* ---------- Footer ---------- */

footer {
  border-top: 1px solid var(--rule);
  padding: 44px var(--pad);
  max-width: var(--max);
  margin: 0 auto;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.footer-copy {
  color: var(--ink-3);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-family: var(--sans);
  font-weight: 500;
}

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .hero,
  .feature {
    grid-template-columns: 1fr;
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .hero { padding-top: 32px; }

  .hero-text, .feature-text { max-width: none; }

  .feature--left .feature-text,
  .feature--right .feature-text { order: 2; }
  .feature--left .feature-image,
  .feature--right .feature-image { order: 1; }

  .hero-image img,
  .feature-image img {
    max-height: 560px;
    margin: 0 auto;
  }

  .privacy,
  .made-by { padding: 80px var(--pad); }
}

@media (max-width: 540px) {
  .masthead, .footer-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }
  .hero-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }
}

/* ---------- Motion preferences ---------- */

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ============================================================
   Long-form article pages — Privacy, Terms, Support
   ============================================================ */

.article {
  max-width: 680px;
  margin: 0 auto;
  padding: clamp(60px, 9vw, 120px) var(--pad) clamp(80px, 12vw, 160px);
}

.article-header {
  margin-bottom: clamp(48px, 7vw, 88px);
  padding-bottom: 36px;
  border-bottom: 1px solid var(--rule);
}

.article-header .caps {
  display: block;
  margin-bottom: 22px;
}

.article-header h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(36px, 5.5vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0 0 24px;
}
.article-header h1 em { font-style: italic; font-weight: 400; }

.article-header .updated {
  font-family: var(--serif);
  font-style: italic;
  font-size: 15px;
  color: var(--ink-3);
  margin: 0;
}

.article h2 {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(22px, 2.6vw, 28px);
  line-height: 1.25;
  letter-spacing: -0.005em;
  margin: 56px 0 18px;
  color: var(--ink);
}

.article p,
.article li {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 17.5px;
  line-height: 1.7;
  color: var(--ink);
}

.article p { margin: 0 0 20px; }

.article ul, .article ol {
  padding-left: 1.4em;
  margin: 0 0 24px;
}
.article li { margin-bottom: 10px; }
.article ul li::marker { color: var(--ink-3); }
.article ol li::marker { font-style: italic; color: var(--ink-3); }

.article strong {
  font-weight: 500;
  color: var(--ink);
}

.article a {
  color: var(--ink);
  border-bottom-color: var(--ink-3);
  font-style: italic;
}
.article a:hover { border-bottom-color: var(--ink); }

/* Lede paragraph under article title */
.article .article-lede {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(19px, 2vw, 22px);
  line-height: 1.5;
  color: var(--ink-2);
  margin: 0 0 24px;
}

/* FAQ block */
.faq {
  list-style: none;
  padding: 0;
  margin: 40px 0 0;
  border-top: 1px solid var(--rule);
}
.faq > li {
  border-bottom: 1px solid var(--rule);
  padding: 26px 0;
}
.faq .q {
  font-family: var(--serif);
  font-style: italic;
  font-size: 21px;
  line-height: 1.35;
  margin: 0 0 12px;
  color: var(--ink);
  font-weight: 400;
}
.faq .a {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-2);
  margin: 0;
}

/* Primary email button — quiet but findable */
.email-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  padding: 16px 28px;
  background: var(--ink);
  color: var(--bg);
  border-radius: 12px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 19px;
  border: none;
  transition: opacity 200ms ease;
}
.email-button:hover { opacity: 0.88; border-color: transparent; }
.email-button .caps {
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--bg);
  opacity: 0.65;
  font-style: normal;
}