/* =========================================================
   Project Oaysis — Shared Stylesheet
   A sober, subtle palette drawn from the Oaysis motif:
   deep teal-slate (depth, trust), warm sand (ground),
   clay/terracotta (warmth, human contact).
   ========================================================= */

:root {
  --ink:            #24302C;   /* primary text */
  --ink-soft:       #4B5850;   /* secondary text */
  --paper:          #FAF7F1;   /* page background */
  --paper-alt:      #F1EBDC;   /* section background (sand) */
  --line:           #DED4BE;   /* hairlines / borders */

  --teal-900:       #1B2E2C;
  --teal-800:       #23413E;
  --teal-700:       #2F534E;
  --teal-600:       #3E6A63;
  --sage:           #7C9A87;

  --clay-600:       #8C6D22;   /* deep gold, drawn from the logo mark */
  --clay-500:       #C79A2A;   /* mid gold */
  --clay-100:       #F6EAC0;   /* pale gold tint */

  --sdg8:           #A21942;   /* official SDG colour, used sparingly as accent */
  --sdg17:          #19486A;

  --radius:         2px;
  --shadow-sm:      0 1px 2px rgba(27, 46, 44, 0.06), 0 1px 1px rgba(27,46,44,.04);
  --shadow-md:      0 8px 24px rgba(27, 46, 44, 0.10);

  --font-serif: "Lora", Georgia, "Times New Roman", serif;
  --font-sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container: 1160px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.18;
  color: var(--teal-900);
  margin: 0 0 .5em;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.1rem, 4vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 2.6vw, 2.3rem); }
h3 { font-size: 1.3rem; }
p { margin: 0 0 1.1em; color: var(--ink-soft); }
.lede { font-size: 1.15rem; color: var(--ink-soft); max-width: 62ch; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5em;
  font-family: var(--font-sans);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clay-600);
  margin-bottom: .9em;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--clay-600);
  display: inline-block;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  padding: .82em 1.5em;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: .95rem;
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .18s ease;
  line-height: 1;
}
.btn-primary { background: var(--teal-800); color: #fff; }
.btn-primary:hover { background: var(--teal-900); }
.btn-accent { background: var(--clay-600); color: #fff; }
.btn-accent:hover { background: #6E541A; }
.btn-outline { background: transparent; border-color: rgba(36,48,44,.28); color: var(--ink); }
.btn-outline:hover { border-color: var(--teal-800); color: var(--teal-800); }
.btn-outline-invert { background: transparent; border-color: rgba(255,255,255,.55); color: #fff; }
.btn-outline-invert:hover { border-color: #fff; background: rgba(255,255,255,.08); }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.btn-sm { padding: .55em 1.1em; font-size: .82rem; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 247, 241, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 28px;
  max-width: var(--container);
  margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: .6em; text-decoration: none; }
.brand-mark { width: 32px; height: 32px; flex-shrink: 0; border-radius: 7px; object-fit: cover; }
.brand-word {
  font-family: var(--font-serif); font-weight: 600; font-size: 1.28rem;
  color: var(--teal-900); letter-spacing: -.01em;
}
.nav-links { display: flex; gap: 30px; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  text-decoration: none; font-size: .92rem; font-weight: 500;
  color: var(--ink-soft); padding: 6px 0; border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--teal-900); border-color: var(--clay-500); }
.nav-cta { display: flex; gap: 10px; align-items: center; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--teal-900); margin: 5px 0; }

@media (max-width: 900px) {
  .nav-links { position: fixed; inset: 68px 0 0 0; background: var(--paper); flex-direction: column;
    padding: 30px 28px; gap: 22px; transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: all .2s ease; border-top: 1px solid var(--line); }
  .nav-links.open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .nav-links a { font-size: 1.1rem; }
  .nav-toggle { display: block; }
  .nav-cta .btn-outline { display: none; }
}

/* ---------- Hero ---------- */
.hero { position: relative; color: #fff; overflow: hidden; }
.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(27,46,44,.72) 0%, rgba(27,46,44,.82) 55%, rgba(27,46,44,.92) 100%);
}
.hero-inner { position: relative; z-index: 1; padding: 118px 0 96px; }
.hero h1 { color: #fff; max-width: 16ch; }
.hero .lede { color: rgba(255,255,255,.86); }
.hero-sm .hero-inner { padding: 78px 0 64px; }
.hero-sm h1 { max-width: 22ch; font-size: clamp(1.9rem, 3.4vw, 2.7rem); }

/* ---------- Sections ---------- */
section { padding: 88px 0; }
.section-tight { padding: 56px 0; }
.alt { background: var(--paper-alt); }
.band-teal { background: var(--teal-900); color: #fff; }
.band-teal h2, .band-teal h3 { color: #fff; }
.band-teal p { color: rgba(255,255,255,.82); }
.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

hr.rule { border: none; border-top: 1px solid var(--line); margin: 0; }

/* ---------- Grids & Cards ---------- */
.grid { display: grid; gap: 28px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px; box-shadow: var(--shadow-sm);
}
.card h3 { margin-bottom: .4em; }
.card .num { font-family: var(--font-serif); font-size: 1rem; color: var(--clay-600); margin-bottom: .6em; display: block; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 32px; } }
.split img { border-radius: var(--radius); box-shadow: var(--shadow-md); }

.figure { position: relative; }
.figure img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius); }
.figure-tall img { aspect-ratio: 4/5; }
.figure-wide img { aspect-ratio: 16/10; }

/* ---------- Stat strip ---------- */
.stat-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
@media (max-width: 760px) { .stat-strip { grid-template-columns: 1fr 1fr; } }
.stat { border-left: 2px solid var(--clay-500); padding-left: 16px; }
.stat .val { font-family: var(--font-serif); font-size: 2.1rem; color: var(--teal-900); display: block; line-height: 1; margin-bottom: .3em; }
.band-teal .stat .val { color: #fff; }
.stat .label { font-size: .88rem; color: var(--ink-soft); }
.band-teal .stat .label { color: rgba(255,255,255,.75); }
.stat .src { font-size: .74rem; color: var(--ink-soft); opacity: .7; }

/* ---------- SDG badges ---------- */
.sdg-badge {
  display: inline-flex; align-items: center; gap: .6em;
  padding: .5em .9em .5em .6em; border-radius: 3px; color: #fff;
  font-weight: 700; font-size: .82rem; letter-spacing: .02em;
}
.sdg-badge .n { background: rgba(255,255,255,.22); border-radius: 2px; padding: .15em .5em; font-family: var(--font-serif); }
.sdg-8  { background: var(--sdg8); }
.sdg-17 { background: var(--sdg17); }

/* ---------- Pull quote ---------- */
.pull {
  font-family: var(--font-serif); font-style: italic; font-weight: 500;
  font-size: clamp(1.25rem, 2vw, 1.6rem); color: var(--teal-900);
  line-height: 1.5; border-left: 3px solid var(--clay-500); padding-left: 28px;
  margin: 0;
}
.pull cite { display: block; font-style: normal; font-family: var(--font-sans); font-size: .85rem; color: var(--ink-soft); margin-top: 14px; }

/* ---------- Timeline / steps ---------- */
.steps { counter-reset: step; list-style: none; margin: 0; padding: 0; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 56px 1fr; gap: 20px; padding: 26px 0; border-top: 1px solid var(--line); }
.steps li:first-child { border-top: none; }
.steps li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-serif); font-size: 1.1rem; color: var(--clay-600);
}

/* ---------- Tracks (join us) ---------- */
.track {
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff;
  display: flex; flex-direction: column; height: 100%;
}
.track .figure img { aspect-ratio: 16/10; }
.track-body { padding: 28px; display: flex; flex-direction: column; flex: 1; }
.track-body p { flex: 1; }
.track-tag { font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; color: var(--clay-600); font-weight: 700; margin-bottom: .6em; }

/* ---------- Placeholder avatar (team) ---------- */
.avatar-ph {
  width: 100%; aspect-ratio: 1; border-radius: var(--radius);
  background: linear-gradient(155deg, var(--teal-800), var(--teal-700));
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.9); font-family: var(--font-serif); font-size: 1.6rem;
}
.avatar-photo {
  width: 100%; aspect-ratio: 1; border-radius: var(--radius);
  object-fit: cover; object-position: center top;
}
.coming-card {
  border: 1px dashed var(--line); border-radius: var(--radius); padding: 30px;
  text-align: center; color: var(--ink-soft); background: var(--paper-alt);
}

/* ---------- Forms ---------- */
.form-card { background: #fff; border: 1px solid var(--line); padding: 40px; border-radius: var(--radius); box-shadow: var(--shadow-sm); }
label { display: block; font-size: .84rem; font-weight: 600; color: var(--teal-900); margin-bottom: .4em; }
input, select, textarea {
  width: 100%; padding: .78em .9em; font-family: var(--font-sans); font-size: .96rem;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper);
  color: var(--ink); margin-bottom: 20px;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--teal-700); background: #fff; }
fieldset { border: none; padding: 0; margin: 0 0 20px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 620px) { .field-row { grid-template-columns: 1fr; } }
.radio-group { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 20px; }
.radio-group label {
  border: 1px solid var(--line); border-radius: 20px; padding: .5em 1.1em; font-weight: 500;
  font-size: .85rem; color: var(--ink-soft); cursor: pointer; margin: 0; display: flex; align-items: center; gap: .5em;
}
.radio-group input { width: auto; margin: 0; }
.form-note { font-size: .82rem; color: var(--ink-soft); margin-top: -6px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--teal-900); color: rgba(255,255,255,.78); padding: 64px 0 28px; }
.site-footer h4 { color: #fff; font-family: var(--font-sans); font-size: .82rem; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 1.2em; }
.site-footer a { color: rgba(255,255,255,.78); text-decoration: none; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 10px; font-size: .92rem; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  border-top: 1px solid rgba(255,255,255,.14); padding-top: 24px; font-size: .82rem; color: rgba(255,255,255,.55); }
.footer-brand-word { font-family: var(--font-serif); color: #fff; font-size: 1.15rem; }
.social-row { display: flex; gap: 14px; }
.social-row a { border: 1px solid rgba(255,255,255,.25); border-radius: 50%; width: 34px; height: 34px; display: flex; align-items: center; justify-content: center; }

/* ---------- Utility ---------- */
.mt-0 { margin-top: 0; }
.center { text-align: center; }
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; }
.tag { font-size: .78rem; padding: .4em .9em; border: 1px solid var(--line); border-radius: 20px; color: var(--ink-soft); }
.divider-oaysis { display: flex; justify-content: center; padding: 6px 0; opacity: .55; }
.badge-source { font-size: .72rem; color: var(--ink-soft); opacity: .75; }
.list-plain { list-style: none; margin: 0; padding: 0; }
.list-plain li { padding: 10px 0; border-bottom: 1px solid var(--line); }
.list-plain li:last-child { border-bottom: none; }