/* ADULIX — shared design tokens + styles for the public site (index.html,
   demo/index.html). Plain CSS, no build step: this is a static site served
   directly by Caddy, nothing to compile. */

:root {
  /* Color */
  --ink: #1b1b1f;
  --ink-soft: #4a4a52;
  --paper: #fbf9f4;
  --surface: #ffffff;
  --border: #e4ddd0;
  --primary: #0b5d52;
  --primary-dark: #073f38;
  --primary-soft: #e3efec;
  --accent: #d97b3f;
  --accent-soft: #faeada;

  /* Type */
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-display: Georgia, "Times New Roman", serif;

  /* Spacing scale */
  --sp-1: 0.5rem;
  --sp-2: 1rem;
  --sp-3: 1.5rem;
  --sp-4: 2rem;
  --sp-5: 3rem;
  --sp-6: 4.5rem;
  --sp-7: 6rem;

  --radius: 10px;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary);
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--sp-3);
}

/* ---------- Nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(251, 249, 244, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}

.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.brand svg {
  height: 28px;
  width: 28px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 1px 2px rgba(11, 93, 82, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ---------- Sections ---------- */

section {
  padding: var(--sp-7) 0;
}

.section-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--primary);
  margin: 0 0 var(--sp-2);
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  line-height: 1.15;
  margin: 0 0 var(--sp-2);
  color: var(--ink);
}

h1 {
  font-size: clamp(2.1rem, 4.5vw, 3.4rem);
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

h3 {
  font-size: 1.2rem;
}

p {
  margin: 0 0 var(--sp-2);
  color: var(--ink-soft);
}

.lede {
  font-size: 1.15rem;
  max-width: 62ch;
}

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

.hero {
  padding-top: var(--sp-7);
  padding-bottom: var(--sp-6);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--accent-soft);
  color: #8a4a1f;
  border: 1px solid #eccba7;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: var(--sp-3);
}

.badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.hero-actions {
  display: flex;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
  margin-top: var(--sp-6);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--border);
}

.stat .num {
  font-family: var(--font-display);
  font-size: 1.9rem;
  color: var(--primary);
  font-weight: 700;
}

.stat .label {
  font-size: 0.88rem;
  color: var(--ink-soft);
}

/* ---------- Timeline (history) ---------- */

.timeline {
  position: relative;
  margin-top: var(--sp-6);
  padding-left: var(--sp-4);
  border-left: 2px solid var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--sp-5);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--sp-4) - 7px);
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--surface);
  border: 3px solid var(--primary);
}

.timeline-item .year {
  font-weight: 700;
  color: var(--primary);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.timeline-item h3 {
  margin-top: 0.3rem;
}

.timeline-note {
  font-size: 0.85rem;
  color: var(--ink-soft);
  font-style: italic;
  margin-top: var(--sp-2);
}

/* ---------- Card grids ---------- */

.grid {
  display: grid;
  gap: var(--sp-3);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--sp-3);
}

.card .icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-2);
  color: var(--primary);
}

.card .icon svg {
  width: 22px;
  height: 22px;
}

.card h3 {
  margin-bottom: 0.4rem;
}

.card p {
  font-size: 0.94rem;
  margin-bottom: 0;
}

.step-num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 0.4rem;
}

/* Alt background band */

.band {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.band-primary {
  background: var(--primary);
  color: #fff;
  border: none;
}

.band-primary h2,
.band-primary h3 {
  color: #fff;
}

.band-primary p {
  color: rgba(255, 255, 255, 0.82);
}

.band-primary .card {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.18);
}

.band-primary .card .icon {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.band-primary .btn-ghost {
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}

.band-primary .btn-ghost:hover {
  border-color: #fff;
}

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

footer {
  padding: var(--sp-5) 0;
  border-top: 1px solid var(--border);
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.footer-links {
  display: flex;
  gap: var(--sp-3);
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--primary);
}

.fine-print {
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin-top: var(--sp-3);
  max-width: 70ch;
}

/* ---------- Demo placeholder page ---------- */

.demo-shell {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--sp-6) 0;
}

.demo-shell .card {
  max-width: 560px;
  padding: var(--sp-5);
}

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

@media (max-width: 860px) {
  .nav-links {
    display: none;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--sp-4);
  }
}

@media (max-width: 520px) {
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
}