/* ============================================================================
   Paginote — shared design-system stylesheet (test/concept)
   Forest-green brand, depth-forward, light + dark themes.

   Reusable building blocks (see each section below):
     .wrap                          centered max-width container
     .nav / .brand / .nav-link      sticky frosted top bar
     .btn .btn-primary / .btn-ghost pill buttons
     .eyebrow (.pulse)              small status pill
     .hero / .hero-inner / .hero-glow / h1.title / .lede   landing hero
     .accent                        green→mint gradient text (any heading)
     .section / .sec-head / .kicker / h2.sec-title         section header
     .bento > .cell (.wide/.full/.tall) + .icon/h3/p        feature grid
     .cta-band > .cta-card          closing call-to-action band
     .prose                         readable long-form text column
     footer / .foot-inner           page footer
     .reveal (+ .d1–.d4)            scroll-in animation (needs js/reveal.js)
     .serif                         display serif (New York / Georgia)
   ========================================================================== */

:root {
  /* Brand (unchanged) */
  --darkest: #1c3d2e;
  --dark: #2e6b4a;
  --mid: #3d9e6b;
  --mint: #9FE1CB;

  /* Light theme tokens (green-biased neutrals, chosen not defaulted) */
  --ground: #eef2ee;
  --ground-deep: #e2ebe4;
  --ink: #16241c;
  --ink-soft: #4c5a52;
  --card: rgba(255, 255, 255, 0.72);
  --card-solid: #ffffff;
  --line: rgba(28, 61, 46, 0.12);
  --glow-a: rgba(61, 158, 107, 0.30);
  --glow-b: rgba(159, 225, 203, 0.42);
  --nav: rgba(244, 248, 245, 0.72);
  --shadow-lo: 0 2px 8px rgba(20, 40, 30, 0.06);
  --shadow-md: 0 18px 40px -18px rgba(20, 40, 30, 0.30);
  --shadow-hi: 0 40px 80px -30px rgba(20, 40, 30, 0.45);
  --chip: rgba(255, 255, 255, 0.85);
  --accent-text: var(--dark);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #0c1712;
    --ground-deep: #07110c;
    --ink: #eaf3ee;
    --ink-soft: #9db3a8;
    --card: rgba(255, 255, 255, 0.045);
    --card-solid: #12211a;
    --line: rgba(255, 255, 255, 0.10);
    --glow-a: rgba(61, 158, 107, 0.30);
    --glow-b: rgba(159, 225, 203, 0.22);
    --nav: rgba(12, 23, 18, 0.62);
    --shadow-lo: 0 2px 10px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 20px 44px -18px rgba(0, 0, 0, 0.6);
    --shadow-hi: 0 46px 90px -30px rgba(0, 0, 0, 0.7);
    --chip: rgba(22, 40, 31, 0.8);
    --accent-text: var(--mint);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.serif {
  font-family: ui-serif, "New York", Georgia, "Times New Roman", serif;
}

.wrap { width: min(1160px, 92vw); margin: 0 auto; }

/* Fine grain overlay across the whole page */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.5;
  mix-blend-mode: soft-light;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ── Nav ── */
.nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  background: var(--nav);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; height: 66px; }
.brand { font-weight: 800; letter-spacing: -0.01em; font-size: 1.22rem; display: flex; align-items: center; gap: 0.55rem; }
.brand .glyph {
  width: 26px; height: 26px; border-radius: 8px;
  background: linear-gradient(150deg, var(--mid), var(--darkest));
  display: grid; place-items: center; color: #fff; font-size: 15px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.25), var(--shadow-lo);
}
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 1.4rem; }
.nav-link { color: var(--ink-soft); text-decoration: none; font-weight: 600; font-size: 0.92rem; }
.nav-link:hover { color: var(--ink); }
.btn {
  font: inherit; font-weight: 700; font-size: 0.92rem; cursor: pointer;
  border-radius: 999px; padding: 0.62rem 1.2rem; border: 1px solid transparent;
  text-decoration: none; display: inline-flex; align-items: center; gap: 0.5rem;
  transition: transform 0.18s ease, box-shadow 0.25s ease, background 0.2s ease;
}
.btn-primary {
  color: #f2fbf6;
  background: linear-gradient(160deg, var(--mid), var(--darkest));
  box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255,255,255,0.22), 0 0 0 0 var(--glow-b);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-hi), 0 0 34px -6px var(--glow-b), inset 0 1px 0 rgba(255,255,255,0.25); }
.btn-ghost {
  color: var(--ink); background: var(--card); border-color: var(--line);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow-lo);
}
.btn-ghost:hover { transform: translateY(-2px); }
.nav .btn { padding: 0.5rem 1rem; }

/* ── Hero ── */
.hero { position: relative; padding: clamp(3rem, 7vw, 6rem) 0 clamp(4rem, 8vw, 7rem); overflow: hidden; }
.hero-glow {
  position: absolute; inset: -20% -10% auto -10%; height: 120%; z-index: 0; pointer-events: none;
  background:
    radial-gradient(48% 40% at 78% 18%, var(--glow-b), transparent 70%),
    radial-gradient(46% 44% at 12% 8%, var(--glow-a), transparent 72%),
    radial-gradient(60% 50% at 50% 120%, var(--glow-a), transparent 70%);
  filter: saturate(1.05);
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 4vw, 4rem); align-items: center; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.4rem 0.85rem; border-radius: 999px;
  background: var(--card); border: 1px solid var(--line);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--accent-text); box-shadow: var(--shadow-lo);
}
.eyebrow .pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--mid); box-shadow: 0 0 0 0 var(--glow-b); animation: pulse 2.4s ease-out infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 var(--glow-b); } 70% { box-shadow: 0 0 0 10px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }

h1.title {
  font-size: clamp(2.6rem, 6vw, 4.3rem); line-height: 1.02; letter-spacing: -0.025em;
  font-weight: 700; margin: 1.3rem 0 0; text-wrap: balance;
}
.accent {
  background: linear-gradient(100deg, var(--mid), var(--mint));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-style: italic;
}
.lede { color: var(--ink-soft); font-size: clamp(1.05rem, 1.5vw, 1.22rem); max-width: 34ch; margin: 1.3rem 0 2rem; }
.cta-row { display: flex; gap: 0.8rem; flex-wrap: wrap; align-items: center; }
.cta-note { color: var(--ink-soft); font-size: 0.82rem; }

/* ── Device mockup ── */
.stage { position: relative; display: grid; place-items: center; min-height: 520px; }
.float { animation: floaty 7s ease-in-out infinite; }
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }

.pages { position: relative; width: min(360px, 78%); aspect-ratio: 3 / 4.05; }
.sheet {
  position: absolute; inset: 0; border-radius: 22px; background: var(--card-solid);
  border: 1px solid var(--line);
}
.sheet.s1 { transform: rotate(-7deg) translate(-30px, 22px) scale(0.96); opacity: 0.55; box-shadow: var(--shadow-md); }
.sheet.s2 { transform: rotate(5deg) translate(24px, 12px) scale(0.98); opacity: 0.8; box-shadow: var(--shadow-md); }

.ipad {
  position: relative; z-index: 3; width: min(360px, 78%); aspect-ratio: 3 / 4.05;
  border-radius: 30px; padding: 12px;
  background: linear-gradient(160deg, #26332c, #0e1712);
  box-shadow: var(--shadow-hi), inset 0 1px 0 rgba(255,255,255,0.12);
}
.screen {
  position: relative; width: 100%; height: 100%; border-radius: 20px; overflow: hidden;
  background: #fbfcfb; box-shadow: inset 0 0 0 1px rgba(0,0,0,0.06);
}
.screen svg { display: block; width: 100%; height: 100%; }

/* Floating UI chips above the screen */
.chip {
  position: absolute; z-index: 5; display: flex; align-items: center; gap: 0.55rem;
  padding: 0.6rem 0.85rem; border-radius: 14px;
  background: var(--chip); border: 1px solid var(--line);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md); font-size: 0.84rem; font-weight: 700; color: var(--ink);
}
.chip small { display: block; font-weight: 600; font-size: 0.68rem; color: var(--ink-soft); letter-spacing: 0.02em; }
.chip-metro { top: 12%; right: -6%; }
.chip-turn { bottom: 15%; left: -9%; }
.metro-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--mid); animation: tick 1.1s steps(1) infinite; }
@keyframes tick { 50% { background: var(--mint); box-shadow: 0 0 12px 2px var(--glow-b); } }
.chip .ic { width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center;
  background: linear-gradient(150deg, var(--mint), var(--mid)); color: #10261c; }

/* ── Section header ── */
.section { padding: clamp(3.5rem, 7vw, 6rem) 0; }
.sec-head { max-width: 40ch; margin-bottom: 2.6rem; }
.kicker { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-text); }
.sec-title { font-size: clamp(1.9rem, 3.6vw, 2.7rem); letter-spacing: -0.02em; line-height: 1.08; margin: 0.6rem 0 0; text-wrap: balance; }

/* ── Feature grid (bento) ── */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1.1rem; grid-auto-rows: minmax(180px, auto); }
.cell {
  position: relative; grid-column: span 2; border-radius: 20px; padding: 1.5rem;
  background: var(--card); border: 1px solid var(--line);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-lo);
  transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
  display: flex; flex-direction: column; gap: 0.7rem; overflow: hidden;
}
.cell::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: radial-gradient(80% 60% at 100% 0%, var(--glow-b), transparent 60%);
  opacity: 0; transition: opacity 0.3s ease;
}
.cell:hover { transform: translateY(-6px); box-shadow: var(--shadow-hi); border-color: rgba(61,158,107,0.4); }
.cell:hover::before { opacity: 0.5; }
.cell.wide { grid-column: span 3; }
.cell.tall { grid-row: span 2; }
.cell.full { grid-column: 1 / -1; align-items: center; text-align: center; }
.cell.full p { max-width: 52ch; }
.icon {
  width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center;
  background: linear-gradient(155deg, rgba(159,225,203,0.5), rgba(61,158,107,0.22));
  border: 1px solid var(--line); color: var(--accent-text);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.4), var(--shadow-lo);
}
.cell h3 { margin: 0.2rem 0 0; font-size: 1.12rem; letter-spacing: -0.01em; }
.cell p { margin: 0; color: var(--ink-soft); font-size: 0.94rem; }
.cell .big { font-family: ui-serif, "New York", Georgia, serif; font-size: clamp(2rem,4vw,2.8rem); font-weight: 700; letter-spacing: -0.02em; margin-top: auto; }
.cell .big span { color: var(--accent-text); }

/* ── CTA band ── */
.cta-band { position: relative; margin: 0 auto clamp(3rem,6vw,5rem); }
.cta-card {
  position: relative; overflow: hidden; border-radius: 28px; padding: clamp(2.5rem, 5vw, 4rem);
  background: linear-gradient(150deg, var(--darkest), var(--dark));
  box-shadow: var(--shadow-hi); text-align: center; color: #eaf6ef;
  border: 1px solid rgba(255,255,255,0.08);
}
.cta-card::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(50% 90% at 50% -10%, var(--glow-b), transparent 60%),
              radial-gradient(40% 70% at 90% 120%, var(--glow-a), transparent 65%);
  opacity: 0.7;
}
.cta-card > * { position: relative; }
.cta-card h2 { font-family: ui-serif, "New York", Georgia, serif; font-size: clamp(1.8rem, 3.6vw, 2.6rem); letter-spacing: -0.02em; margin: 0 0 0.6rem; text-wrap: balance; }
.cta-card p { color: #bfe0cf; margin: 0 auto 1.8rem; max-width: 46ch; }

/* ── Long-form content (privacy, guide, about …) ── */
.prose { max-width: 68ch; }
.prose > * + * { margin-top: 1rem; }
.prose > :first-child { margin-top: 0; }
.prose p { color: var(--ink-soft); }
.prose h2 { font-size: clamp(1.3rem, 2.4vw, 1.6rem); letter-spacing: -0.01em; margin-top: 2.4rem; }
.prose h3 { font-size: 1.1rem; letter-spacing: -0.01em; margin-top: 1.8rem; }
.prose a { color: var(--accent-text); }
.prose ul, .prose ol { margin-left: 1.2rem; color: var(--ink-soft); }
.prose li + li { margin-top: 0.4rem; }
.prose h2 { scroll-margin-top: 88px; }
.prose figure { margin-top: 1.5rem; }
.prose figure .frame { display: flex; align-items: center; justify-content: center; aspect-ratio: 16 / 10; overflow: hidden; border: 1px dashed rgba(61,158,107,0.5); border-radius: 16px; background: var(--card); }
.prose figure .frame span { padding: 1rem; color: var(--ink-soft); font-size: 0.9rem; font-weight: 600; text-align: center; }
.prose figure img { width: 100%; height: 100%; object-fit: cover; display: block; }
.prose figure img:not([src]), .prose figure img[src=""] { display: none; }
.prose figure figcaption { margin-top: 0.6rem; color: var(--ink-soft); font-size: 0.85rem; text-align: center; }

/* ── Document column + contents (guide / docs) ── */
.doc { max-width: 760px; margin-inline: auto; }
.toc { margin: 2rem 0; padding: 1.4rem 1.6rem; border: 1px solid var(--line); border-radius: 18px; background: var(--card); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); box-shadow: var(--shadow-lo); }
.toc h2 { margin: 0 0 0.9rem; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-text); }
.toc ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 0.55rem 1.4rem; }
.toc a { color: var(--ink); text-decoration: none; font-weight: 600; font-size: 0.95rem; }
.toc a:hover { color: var(--accent-text); }

/* ── FAQ (question / answer list) ── */
.faq { max-width: 760px; margin-inline: auto; }
.faq-item { padding: 1.6rem 0; border-top: 1px solid var(--line); }
.faq-item:first-child { border-top: 0; padding-top: 0; }
.faq-item h2 { font-size: clamp(1.1rem, 2.2vw, 1.35rem); letter-spacing: -0.01em; margin: 0 0 0.5rem; }
.faq-item p { margin: 0; color: var(--ink-soft); }
.faq-item p + p { margin-top: 0.7rem; }

/* ── Footer ── */
footer { border-top: 1px solid var(--line); padding: 2.4rem 0; }
.foot-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem 1.5rem; flex-wrap: wrap; color: var(--ink-soft); font-size: 0.86rem; }
.foot-links { display: flex; gap: 1.2rem; flex-wrap: wrap; }
.foot-links a { color: var(--ink-soft); text-decoration: none; font-weight: 600; }
.foot-links a:hover { color: var(--accent-text); }
.foot-social { display: inline-flex; align-items: center; }
.foot-social svg { display: block; }

/* ── Reveal animation (progressive enhancement via js/reveal.js) ── */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2,0.7,0.2,1); }
.reveal.in { opacity: 1; transform: none; }
.d1 { transition-delay: 0.05s; } .d2 { transition-delay: 0.13s; } .d3 { transition-delay: 0.21s; } .d4 { transition-delay: 0.29s; }

/* ── Responsive ── */
@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; }
  .stage { min-height: 440px; order: -1; }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .cell, .cell.wide, .cell.full { grid-column: span 1; }
  .cell.full { text-align: left; align-items: stretch; }
  .cell.tall { grid-row: span 1; }
}
@media (max-width: 540px) {
  .bento { grid-template-columns: 1fr; }
  .nav-links-hide { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .float, .metro-dot, .eyebrow .pulse { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .cell { transition: none; }
}