/* ============================================================
   RemNet — design system
   Quiet, dark, expensive. Ink green, champagne gold, warm ivory.
   No dependencies, no webfonts, no trackers.
   ============================================================ */

:root {
  --ink: #0d110f;
  --ink-raised: #141a16;
  --ink-card: #131916;
  --ink-border: #232b25;
  --ink-border-warm: rgba(214, 189, 138, 0.35);
  --ivory: #eae7df;
  --muted: #9aa69d;
  --gold: #d6bd8a;
  --gold-dim: #a8946c;
  --sage: #9cb8aa;
  --serif: Georgia, "Times New Roman", "Noto Serif", serif;
  --sans: "Segoe UI", -apple-system, system-ui, "Helvetica Neue", sans-serif;
  --wrap: 1120px;
  --r-lg: 28px;
  --r-md: 20px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--ivory);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Film-grain overlay — barely there, but the page stops feeling flat */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  opacity: 0.05;
  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='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
}

::selection { background: rgba(214, 189, 138, 0.28); color: var(--ivory); }

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

a { color: var(--gold); text-decoration: none; }
a:hover { color: #e8d4a8; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }
.wrap-narrow { max-width: 760px; margin: 0 auto; padding: 0 28px; }

/* ---------- typography ---------- */

.overline {
  display: block;
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 4px;
  text-transform: uppercase;
  font-weight: 600;
}
.app-chip .overline { display: inline; }

h1, h2, h3.serif {
  font-family: var(--serif);
  font-weight: 400;
  color: var(--ivory);
  letter-spacing: 0.2px;
}

h1 { font-size: clamp(44px, 7.2vw, 84px); line-height: 1.04; }
h2 { font-size: clamp(30px, 4.4vw, 48px); line-height: 1.12; }
h3 { font-size: 19px; font-weight: 600; color: var(--ivory); }

p { color: var(--muted); }
.lead { font-size: clamp(17px, 2vw, 20px); }
strong { color: var(--ivory); font-weight: 600; }

.gold-line {
  width: 44px;
  border: 0;
  border-top: 1px solid var(--gold);
  margin: 30px 0;
}

.center { text-align: center; }
.center .gold-line { margin-left: auto; margin-right: auto; }

/* ---------- atmosphere ---------- */

.glow-field {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
}
.glow.g-gold { background: rgba(214, 189, 138, 0.13); }
.glow.g-sage { background: rgba(156, 184, 170, 0.09); }

/* ---------- nav ---------- */

header.site {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(13, 17, 15, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--ink-border);
}
header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  font-family: var(--serif);
  font-size: 21px;
  color: var(--ivory);
  letter-spacing: 0.5px;
}
.brand:hover { color: var(--ivory); }
.brand .dot { color: var(--gold); }
nav { display: flex; align-items: center; gap: 26px; }
nav a {
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0.4px;
}
nav a:hover { color: var(--gold); }
nav a.nav-cta {
  color: var(--gold);
  border: 1px solid rgba(214, 189, 138, 0.5);
  border-radius: 999px;
  padding: 8px 18px;
  transition: background 0.25s ease, color 0.25s ease;
}
nav a.nav-cta:hover { background: var(--gold); color: #231b0a; }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-radius: 999px;
  padding: 15px 32px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}
.btn-gold {
  background: var(--gold);
  color: #231b0a;
}
.btn-gold:hover {
  color: #231b0a;
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(214, 189, 138, 0.22);
}
.btn-ghost {
  color: var(--ivory);
  border: 1px solid var(--ink-border);
}
.btn-ghost:hover {
  color: var(--ivory);
  border-color: var(--ink-border-warm);
  transform: translateY(-2px);
}

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

section { position: relative; padding: 110px 0; }
section.tight { padding: 70px 0; }

.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head h2 { margin-top: 14px; }
.section-head p { margin-top: 16px; }

/* ---------- hero ---------- */

.hero {
  position: relative;
  padding: 130px 0 120px;
  border-bottom: 1px solid var(--ink-border);
}
.hero h1 { margin: 22px 0 26px; }
.hero .lead { max-width: 560px; }
.hero .cta-row { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 40px; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
  align-items: center;
}
.hero-visual { max-width: 340px; justify-self: end; width: 100%; }

/* ---------- cards ---------- */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.card {
  background: linear-gradient(180deg, rgba(214, 189, 138, 0.045) 0%, rgba(214, 189, 138, 0) 34%), var(--ink-card);
  border: 1px solid var(--ink-border);
  border-radius: var(--r-lg);
  padding: 34px 30px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--ink-border-warm);
}
.card .num {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--gold);
  letter-spacing: 2px;
}
.card h3 { margin: 14px 0 10px; }
.card p { font-size: 15px; }

/* ---------- showcase (work) ---------- */

.showcase {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 70px;
  align-items: center;
  background: linear-gradient(180deg, rgba(214, 189, 138, 0.05) 0%, rgba(214, 189, 138, 0) 45%), var(--ink-card);
  border: 1px solid var(--ink-border);
  border-radius: 36px;
  padding: 64px;
  overflow: hidden;
  position: relative;
}
.showcase h2 { margin: 14px 0 18px; }
.showcase .app-chip {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 26px;
}
.showcase .app-chip img { width: 54px; height: 54px; border-radius: 14px; }
.showcase .app-chip span { font-family: var(--serif); font-size: 20px; }
.showcase ul {
  list-style: none;
  margin: 26px 0 34px;
}
.showcase ul li {
  padding: 9px 0 9px 26px;
  color: var(--muted);
  font-size: 15px;
  position: relative;
}
.showcase ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 12px;
  border-top: 1px solid var(--gold);
}

/* ---------- device frame ---------- */

.device {
  position: relative;
  border-radius: 42px;
  border: 1px solid #2b342d;
  background: #0a0d0b;
  padding: 12px;
  box-shadow:
    0 40px 90px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(214, 189, 138, 0.07),
    0 0 120px rgba(214, 189, 138, 0.07);
}
.device img { border-radius: 32px; }
.device.tilt { transform: rotate(2.5deg); }
.device.tilt:hover { transform: rotate(0deg); }
.device { transition: transform 0.5s ease; }

/* ---------- process ---------- */

.steps { border-top: 1px solid var(--ink-border); }
.step {
  display: grid;
  grid-template-columns: 90px 260px 1fr;
  gap: 28px;
  padding: 34px 6px;
  border-bottom: 1px solid var(--ink-border);
  align-items: baseline;
}
.step .n { font-family: var(--serif); color: var(--gold); font-size: 22px; }
.step h3 { font-family: var(--serif); font-weight: 400; font-size: 26px; }
.step p { font-size: 15px; max-width: 520px; }

/* ---------- capability strip ---------- */

.strip {
  border-top: 1px solid var(--ink-border);
  border-bottom: 1px solid var(--ink-border);
  padding: 22px 0;
}
.strip .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 0;
  justify-content: space-between;
  align-items: center;
}
.strip span {
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
}
.strip i { color: var(--gold-dim); font-style: normal; }

/* ---------- feature grid (app page) ---------- */

.feature {
  padding: 30px 28px;
  border: 1px solid var(--ink-border);
  border-radius: var(--r-lg);
  background: var(--ink-card);
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.feature:hover { transform: translateY(-4px); border-color: var(--ink-border-warm); }
.feature .glyph {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(214, 189, 138, 0.1);
  border: 1px solid rgba(214, 189, 138, 0.28);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-family: var(--serif);
  font-size: 18px;
}
.feature h3 { margin: 18px 0 8px; font-size: 17px; }
.feature p { font-size: 14.5px; }

/* ---------- gallery ---------- */

.gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  align-items: start;
}
.gallery .device { padding: 8px; border-radius: 30px; }
.gallery .device img { border-radius: 23px; }
.gallery figcaption {
  text-align: center;
  color: var(--muted);
  font-size: 13.5px;
  letter-spacing: 0.4px;
  margin-top: 16px;
}

/* ---------- FAQ ---------- */

details {
  border-bottom: 1px solid var(--ink-border);
  padding: 6px 0;
}
details summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 36px 20px 2px;
  color: var(--ivory);
  font-size: 17px;
  position: relative;
}
details summary::-webkit-details-marker { display: none; }
details summary::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gold);
  font-family: var(--serif);
  font-size: 24px;
  transition: transform 0.3s ease;
}
details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
details p { padding: 0 2px 22px; font-size: 15px; max-width: 640px; }

/* ---------- contact / footer ---------- */

.contact-hero h2 { font-size: clamp(38px, 6vw, 68px); }
.contact-hero { text-align: center; }
.contact-hero .btn { margin-top: 36px; }
.contact-hero p.sub { margin-top: 18px; }

footer {
  border-top: 1px solid var(--ink-border);
  padding: 42px 0 54px;
}
footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
}
footer p, footer a { color: var(--muted); font-size: 13.5px; }
footer a:hover { color: var(--gold); }
footer .links { display: flex; gap: 22px; }

/* ---------- legal ---------- */

.legal { padding: 90px 0 40px; }
.legal h1 { font-size: clamp(36px, 5vw, 56px); }
.legal h2 { margin-top: 52px; font-size: 26px; }
.legal p, .legal li { color: var(--muted); font-size: 15.5px; }
.legal ul { padding-left: 22px; margin: 12px 0; }
.legal .updated { font-size: 13.5px; margin-top: 14px; }
.legal code {
  background: var(--ink-raised);
  border: 1px solid var(--ink-border);
  border-radius: 6px;
  padding: 1px 7px;
  font-size: 13.5px;
  color: var(--sage);
}
table.perm {
  width: 100%;
  border-collapse: collapse;
  margin: 22px 0;
  font-size: 14.5px;
}
table.perm th, table.perm td {
  text-align: left;
  padding: 13px 15px;
  border: 1px solid var(--ink-border);
  color: var(--muted);
  vertical-align: top;
}
table.perm th { color: var(--ivory); font-weight: 600; background: var(--ink-raised); }

/* ---------- reveal on scroll ---------- */

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}
.reveal.in { opacity: 1; transform: none; }
.d1 { transition-delay: 0.08s; }
.d2 { transition-delay: 0.16s; }
.d3 { transition-delay: 0.24s; }
.d4 { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .card, .feature, .device, .btn { transition: none; }
}

/* ---------- responsive ---------- */

@media (max-width: 960px) {
  section { padding: 80px 0; }
  .hero { padding: 90px 0 80px; }
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
  .hero-grid .hero-visual { max-width: 340px; margin: 0 auto; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .showcase { grid-template-columns: 1fr; padding: 40px 28px; gap: 44px; }
  .showcase .device { max-width: 300px; margin: 0 auto; }
  .step { grid-template-columns: 56px 1fr; }
  .step p { grid-column: 2; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  nav a:not(.nav-cta) { display: none; }
}

@media (max-width: 540px) {
  .gallery { grid-template-columns: 1fr; }
  .gallery .device { max-width: 280px; margin: 0 auto; }
}