/* ============================================================
   Adelli Group, corporate site
   Brand palette (Adelli Green #0f6e5c). Keep in sync with the
   vault brand doc: 01-Company/Brand-Colours.md
   ============================================================ */

:root {
  --ink: #16181d;
  --ink-soft: #4a4f5a;
  --paper: #faf8f4;
  --paper-panel: #ffffff;
  --line: #e7e2d8;
  --accent: #0f6e5c;       /* Adelli Green */
  --accent-ink: #0a4d40;

  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;

  --max: 64rem;
  --radius: 16px;
  --header-h: 4rem;
  font-size: clamp(16px, 1.4vw, 18px);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 0.5rem);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-ink); }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding-inline: 1.5rem;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color 0.25s ease, border-color 0.25s ease, backdrop-filter 0.25s ease;
}

.site-header.scrolled {
  background: color-mix(in srgb, var(--paper) 85%, transparent);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--line);
}

.bar {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.wordmark {
  font-family: var(--font-body);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--ink);
}

.wordmark .dot { color: var(--accent); }

.nav { display: flex; gap: 1.4rem; }

.nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.nav a:hover,
.nav a:focus-visible { color: var(--accent-ink); }

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.hero-glow {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(55rem 26rem at 18% -8%, color-mix(in srgb, var(--accent) 20%, transparent), transparent 60%),
    radial-gradient(40rem 24rem at 100% 0%, color-mix(in srgb, var(--accent) 9%, transparent), transparent 55%);
}

.hero-inner {
  padding-top: clamp(3rem, 9vw, 6.5rem);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.eyebrow {
  margin: 0 0 1rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
}

.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2.6rem, 6.5vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  max-width: 18ch;
}

.lede {
  margin: 0;
  max-width: 40rem;
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  color: var(--ink-soft);
}

.chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.9rem 0 0;
  padding: 0;
}

.chips li {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.32rem 0.8rem;
  background: color-mix(in srgb, var(--paper-panel) 55%, transparent);
}

/* Sections */
.section { padding-block: clamp(3rem, 7vw, 5.5rem); }
.section + .section:not(.alt) { border-top: 1px solid var(--line); }

.section.alt {
  background: color-mix(in srgb, var(--accent) 4%, var(--paper-panel));
  border-block: 1px solid var(--line);
}

.kicker {
  margin: 0 0 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
}

h2 {
  margin: 0 0 1.75rem;
  font-size: clamp(1.7rem, 3.6vw, 2.4rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.muted { color: var(--ink-soft); }

/* Approach cards */
.cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}

.card {
  position: relative;
  overflow: hidden;
  background: var(--paper-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem 1.5rem 1.5rem;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
  box-shadow: 0 14px 34px -20px rgba(15, 110, 92, 0.55);
}

.card-no {
  position: absolute;
  top: 0.4rem;
  right: 0.9rem;
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 600;
  line-height: 1;
  color: color-mix(in srgb, var(--accent) 16%, transparent);
}

.card h3 { margin: 0 0 0.5rem; font-size: 1.15rem; }
.card p { margin: 0; color: var(--ink-soft); }

/* Values */
.value-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.value { position: relative; padding-left: 1.5rem; }

.value::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: var(--accent);
}

.value h3 { margin: 0 0 0.3rem; font-size: 1.1rem; }
.value p { margin: 0; color: var(--ink-soft); }

/* Brands (placeholders) */
.brands .lede { margin-bottom: 1.75rem; }

.brand-card {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 10rem;
  border: 1px dashed color-mix(in srgb, var(--accent) 30%, var(--line));
  border-radius: var(--radius);
  background:
    radial-gradient(20rem 12rem at 50% 120%, color-mix(in srgb, var(--accent) 7%, transparent), transparent 70%),
    color-mix(in srgb, var(--paper-panel) 55%, transparent);
  overflow: hidden;
}

.brand-no {
  font-family: var(--font-display);
  font-size: 3.6rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: color-mix(in srgb, var(--ink) 9%, transparent);
}

.brand-card .badge {
  position: absolute;
  bottom: 0.9rem;
  left: 0.9rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-ink);
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
}

/* Call-to-action band (always the deep brand green, for a strong block) */
.cta {
  background: linear-gradient(135deg, #0f6e5c, #0a4d40);
  color: #f3fbf8;
}

.cta-inner {
  padding-block: clamp(2.5rem, 6vw, 4rem);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.cta h2 { margin: 0 0 0.4rem; color: #ffffff; }
.cta p { margin: 0; color: color-mix(in srgb, #ffffff 82%, transparent); }

.btn {
  display: inline-block;
  background: #faf8f4;
  color: #0a4d40;
  font-weight: 600;
  text-decoration: none;
  padding: 0.8rem 1.5rem;
  border-radius: 999px;
  white-space: nowrap;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px -12px rgba(0, 0, 0, 0.4);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.footer-inner {
  padding-block: 2.5rem 3.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-mark { font-size: 1.25rem; }
.footer-meta { text-align: right; }
.footer-meta p { margin: 0; }

/* Reveal-on-scroll (only when JS is active, so content is never hidden without it) */
.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.js .reveal.is-visible { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 600px) {
  .nav { display: none; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-meta { text-align: left; }
}

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

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f1efe9;
    --ink-soft: #b4b0a6;
    --paper: #14151a;
    --paper-panel: #1c1e25;
    --line: #2b2e37;
    --accent: #2dd4bf;
    --accent-ink: #5eead4;
  }
  .wordmark { color: var(--ink); }
  .card:hover { box-shadow: 0 14px 34px -20px rgba(45, 212, 191, 0.4); }
  /* CTA stays deep green; brighten its link button text accordingly */
  .btn { background: #f3fbf8; color: #0a4d40; }
}