:root {
  /* Paper & ink — sourced from the app's design tokens (constants/theme.ts) */
  --paper: #fff8ef;
  --paper-2: #f3ede4;
  --paper-3: #e8e2d9;
  --ink: #1d1b16;
  --ink-2: #434843;
  --ink-3: #737872;
  --line: #c3c8c1;
  --accent: #334537;
  --accent-soft: #d3e8d5;
  --on-accent: #ffffff;
  --danger: #ba1a1a;

  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1080px;
  --shadow: 0 1px 2px rgba(29, 27, 22, 0.06), 0 12px 32px -12px rgba(29, 27, 22, 0.18);
  --shadow-sm: 0 1px 2px rgba(29, 27, 22, 0.08), 0 6px 16px -10px rgba(29, 27, 22, 0.18);

  --serif: "Frank Ruhl Libre", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #16140f;
    --paper-2: #221f18;
    --paper-3: #2d2a21;
    --ink: #f6f0e7;
    --ink-2: #c3c8c1;
    --ink-3: #8c9088;
    --line: #33302a;
    --accent: #b7ccb9;
    --accent-soft: #394b3d;
    --on-accent: #0e1f13;
    --danger: #ffb4ab;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px -12px rgba(0, 0, 0, 0.6);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3), 0 6px 16px -10px rgba(0, 0, 0, 0.5);
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  color: var(--ink);
  background-color: var(--paper);
  /* Subtle warm paper grain via layered gradients */
  background-image:
    radial-gradient(circle at 20% 0%, rgba(51, 69, 55, 0.04), transparent 45%),
    radial-gradient(circle at 100% 30%, rgba(51, 69, 55, 0.03), transparent 40%);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--ink);
}

.brand:hover {
  text-decoration: none;
}

.brand .logo {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--on-accent);
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  color: var(--ink-2);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav a:hover {
  color: var(--accent);
  text-decoration: none;
}

.nav .btn,
.nav .btn:hover {
  color: var(--on-accent);
}

@media (max-width: 720px) {
  .nav .nav-link {
    display: none;
  }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform 0.12s ease, box-shadow 0.12s ease, opacity 0.12s ease;
  box-shadow: var(--shadow-sm);
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
  opacity: 0.95;
}

.btn.ghost {
  background: transparent;
  color: var(--accent);
  border-color: var(--line);
  box-shadow: none;
}

/* ---------- Hero ---------- */
.hero {
  padding: 84px 0 64px;
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}

.hero h1 .accent {
  color: var(--accent);
  font-style: italic;
}

.hero p.lede {
  font-size: 1.15rem;
  color: var(--ink-2);
  max-width: 30ch;
  margin-bottom: 30px;
}

.hero .cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}

.hero .note {
  font-size: 0.86rem;
  color: var(--ink-3);
  margin-top: 18px;
}

/* ---------- Phone mockup ---------- */
.mock {
  justify-self: center;
  width: 280px;
  height: 560px;
  border-radius: 38px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 14px;
  position: relative;
}

.mock::before {
  content: "";
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 96px;
  height: 6px;
  border-radius: 999px;
  background: var(--line);
}

.mock .screen {
  height: 100%;
  border-radius: 26px;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 34px 18px 18px;
  overflow: hidden;
}

.mock .screen h3 {
  font-family: var(--serif);
  font-size: 1.25rem;
  margin-bottom: 4px;
}

.mock .screen .sub {
  font-size: 0.78rem;
  color: var(--ink-3);
  margin-bottom: 16px;
}

.mock .item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}

.mock .item .check {
  width: 19px;
  height: 19px;
  border-radius: 6px;
  border: 2px solid var(--line);
  flex: none;
}

.mock .item.done .check {
  background: var(--accent);
  border-color: var(--accent);
  position: relative;
}

.mock .item.done .check::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid var(--on-accent);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.mock .item.done span {
  color: var(--ink-3);
  text-decoration: line-through;
}

.mock .item .qty {
  margin-left: auto;
  font-size: 0.78rem;
  color: var(--ink-3);
}

/* ---------- Sections ---------- */
section.band {
  padding: 76px 0;
}

.section-head {
  text-align: center;
  max-width: 60ch;
  margin: 0 auto 48px;
}

.section-head h2 {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  line-height: 1.15;
  margin-bottom: 12px;
}

.section-head p {
  color: var(--ink-2);
  font-size: 1.05rem;
}

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

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-sm);
}

.card .ico {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 16px;
}

.card h3 {
  font-family: var(--serif);
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.card p {
  color: var(--ink-2);
  font-size: 0.96rem;
}

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  counter-reset: step;
}

.step {
  position: relative;
  padding: 26px;
  border-radius: var(--radius);
  background: var(--paper-2);
  border: 1px solid var(--line);
}

.step::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--on-accent);
  font-family: var(--serif);
  font-weight: 700;
  margin-bottom: 14px;
}

.step h3 {
  font-family: var(--serif);
  font-size: 1.12rem;
  margin-bottom: 6px;
}

.step p {
  color: var(--ink-2);
  font-size: 0.95rem;
}

/* ---------- CTA band ---------- */
.cta {
  text-align: center;
}

.cta .panel {
  background: var(--accent);
  color: var(--on-accent);
  border-radius: 24px;
  padding: 56px 32px;
  box-shadow: var(--shadow);
}

.cta .panel h2 {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 12px;
}

.cta .panel p {
  opacity: 0.92;
  max-width: 46ch;
  margin: 0 auto 26px;
  font-size: 1.05rem;
}

.cta .panel .btn {
  background: var(--on-accent);
  color: var(--accent);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 40px 0;
  margin-top: 16px;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
}

.site-footer .links {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}

.site-footer .links a {
  color: var(--ink-2);
  font-size: 0.92rem;
}

.site-footer .copy {
  color: var(--ink-3);
  font-size: 0.88rem;
}

/* ---------- Document pages (privacy / terms) ---------- */
.doc {
  padding: 56px 0 72px;
}

.doc .wrap {
  max-width: 760px;
}

.doc h1 {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 6px;
}

.doc .updated {
  color: var(--ink-3);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.doc h2 {
  font-family: var(--serif);
  font-size: 1.4rem;
  margin: 32px 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
}

.doc p,
.doc li {
  color: var(--ink-2);
  font-size: 1rem;
  margin-bottom: 10px;
}

.doc ul {
  padding-left: 22px;
  margin-bottom: 10px;
}

.doc strong {
  color: var(--ink);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 28px;
  font-size: 0.92rem;
  color: var(--ink-2);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero .wrap {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  .hero p.lede {
    max-width: 100%;
  }
  .hero .cta-row {
    justify-content: center;
  }
  .features,
  .steps {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .hero {
    padding: 56px 0 40px;
  }
  section.band {
    padding: 56px 0;
  }
}