/* Tiriti-dynamic leadership — shared styles
   Hemisphere + Big River Creative
   Type: Source Serif 4 (headings), Source Sans 3 (body)
   Palette: Whenua deep #0B2A4A, Whenua #1C4E7D, Tiriti #2A9D8F,
            Tiriti deep #1F7A6F, Centre soft #E6F1F8, Paper #FFFFFF */

:root {
  --whenua-deep: #0B2A4A;
  --whenua: #1C4E7D;
  --tiriti: #2A9D8F;
  --tiriti-deep: #1F7A6F;
  --centre-soft: #E6F1F8;
  --paper: #FFFFFF;
  --ink: #14202E;
  --ink-soft: #3F5064;
  --line: #D6E3EF;
  --maxw: 1120px;
  --readw: 720px;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Source Sans 3", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
  color: var(--whenua-deep);
  line-height: 1.15;
  font-weight: 600;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.35rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; color: var(--whenua); }

p { margin: 0 0 1.1em; }
a { color: var(--tiriti-deep); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--whenua); }

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

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }
.read { max-width: var(--readw); }

/* Skip link */
.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--whenua-deep); color: #fff; padding: 0.6rem 1rem; z-index: 200;
}
.skip:focus { left: 1rem; top: 1rem; }

/* ---- Header / nav ---- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(1.2) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 0.85rem 1.5rem; max-width: var(--maxw); margin: 0 auto;
}
.brand {
  font-family: "Source Serif 4", serif; font-weight: 600; font-size: 1.05rem;
  color: var(--whenua-deep); text-decoration: none; white-space: nowrap;
}
.brand:hover { color: var(--whenua-deep); }
.nav-links { display: flex; gap: 1.4rem; align-items: center; flex-wrap: wrap; }
.nav-links a {
  color: var(--ink); text-decoration: none; font-size: 0.98rem; font-weight: 500;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--tiriti-deep); }
.nav-cta {
  background: var(--tiriti); color: #fff !important; padding: 0.5rem 0.95rem;
  border-radius: 999px; font-weight: 600;
}
.nav-cta:hover { background: var(--tiriti-deep); }
.nav-toggle { display: none; }

@media (max-width: 820px) {
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 0.25rem;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 0.75rem 1.5rem 1.25rem;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 0.5rem 0; width: 100%; }
  .nav-cta { display: inline-block; margin-top: 0.4rem; }
  .nav-toggle {
    display: inline-flex; align-items: center; gap: 0.4rem;
    background: none; border: 1px solid var(--line); border-radius: 8px;
    padding: 0.45rem 0.7rem; font: inherit; font-weight: 600; color: var(--whenua-deep);
    cursor: pointer;
  }
}

/* ---- Hero ---- */
.hero {
  background:
    radial-gradient(120% 140% at 85% -10%, rgba(42,157,143,0.14), transparent 55%),
    linear-gradient(180deg, var(--centre-soft), #fff 78%);
  padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(2.5rem, 5vw, 4rem);
}
.eyebrow {
  text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.8rem;
  font-weight: 700; color: var(--tiriti-deep); margin: 0 0 1rem;
}
.hero h1 { max-width: 16ch; }
.subhead { font-size: clamp(1.1rem, 1.9vw, 1.35rem); color: var(--ink-soft); max-width: 46ch; }
.pull {
  font-family: "Source Serif 4", serif; font-style: italic;
  font-size: clamp(1.15rem, 2vw, 1.4rem); color: var(--whenua);
  border-left: 3px solid var(--tiriti); padding-left: 1rem; margin: 1.75rem 0;
  max-width: 52ch;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--tiriti); color: #fff; text-decoration: none;
  padding: 0.8rem 1.4rem; border-radius: 999px; font-weight: 600; font-size: 1.02rem;
  border: 0; cursor: pointer;
}
.btn:hover { background: var(--tiriti-deep); color: #fff; }
.btn-ghost {
  background: transparent; color: var(--whenua-deep);
  border: 1.5px solid var(--whenua);
}
.btn-ghost:hover { background: var(--whenua-deep); color: #fff; border-color: var(--whenua-deep); }

/* ---- Sections ---- */
section { padding: clamp(2.5rem, 5vw, 4rem) 0; }
.section-num {
  display: inline-block; font-weight: 700; font-size: 0.82rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--tiriti-deep); margin-bottom: 0.5rem;
}
.section-num span { color: var(--ink-soft); font-weight: 600; margin-left: 0.6rem; letter-spacing: 0.04em; }
.alt { background: var(--centre-soft); }
.dark { background: var(--whenua-deep); }
.dark h1, .dark h2, .dark h3, .dark h4 { color: #fff; }
.dark p { color: #D7E4F1; }
.dark a { color: #9FE3D8; }

/* ---- Audience / definition blocks ---- */
.lede { font-size: 1.15rem; color: var(--ink-soft); }
.who p strong, .who dt { color: var(--whenua-deep); }

/* ---- Cards ---- */
.cards { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 1.5rem;
}
.card h3 { margin-top: 0; }
.card .k { color: var(--tiriti-deep); font-weight: 700; }

/* Te Pūtake concept list */
.concepts { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); margin-top: 1.5rem; }
.concept {
  background: var(--centre-soft); border-radius: 12px; padding: 1.25rem 1.4rem;
  border-left: 4px solid var(--tiriti);
}
.concept h3 { margin: 0 0 0.35rem; font-size: 1.15rem; }
.concept p { margin: 0; color: var(--ink-soft); }

/* ---- FAQ ---- */
.faq { max-width: var(--readw); }
.faq details {
  border-bottom: 1px solid var(--line); padding: 0.4rem 0;
}
.faq summary {
  font-family: "Source Serif 4", serif; font-size: 1.15rem; font-weight: 600;
  color: var(--whenua-deep); cursor: pointer; padding: 0.9rem 0; list-style: none;
  display: flex; justify-content: space-between; gap: 1rem; align-items: baseline;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--tiriti); font-size: 1.4rem; font-family: "Source Sans 3", sans-serif; }
.faq details[open] summary::after { content: "–"; }
.faq details > p { padding: 0 0 1rem; margin: 0; color: var(--ink-soft); }

/* ---- Image blocks ---- */
figure { margin: 2rem 0; }
figure.flush img { border-radius: 0; box-shadow: none; }
figure img { border-radius: 12px; }
figcaption { font-size: 0.9rem; color: var(--ink-soft); margin-top: 0.6rem; }
.lockup { max-width: 376px; }

/* ---- Portraits (kaiārahi) ---- */
.guide { display: grid; gap: 2rem; grid-template-columns: 320px 1fr; align-items: start; margin: 2.5rem 0; }
.guide img { border-radius: 14px; aspect-ratio: 4/5; object-fit: cover; width: 100%; }
.guide .iwi { color: var(--tiriti-deep); font-weight: 600; margin: 0.1rem 0 1rem; }
.guide .role { color: var(--ink-soft); font-weight: 600; }
@media (max-width: 680px) { .guide { grid-template-columns: 1fr; } .guide img { max-width: 300px; } }

/* ---- Timeline (whakapapa) ---- */
.timeline { border-left: 2px solid var(--line); margin: 1.5rem 0; padding-left: 1.5rem; }
.timeline .step { margin-bottom: 1.5rem; position: relative; }
.timeline .step::before {
  content: ""; position: absolute; left: -1.9rem; top: 0.35rem;
  width: 12px; height: 12px; border-radius: 50%; background: var(--tiriti); border: 2px solid #fff;
}
.timeline .yr { font-weight: 700; color: var(--whenua-deep); font-family: "Source Serif 4", serif; }
.timeline p { margin: 0.2rem 0 0; color: var(--ink-soft); }

/* ---- Form ---- */
.field { margin-bottom: 1.25rem; }
.field label { display: block; font-weight: 600; color: var(--whenua-deep); margin-bottom: 0.4rem; }
.field input, .field textarea {
  width: 100%; font: inherit; padding: 0.75rem 0.9rem;
  border: 1.5px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink);
}
.field input:focus, .field textarea:focus { outline: 3px solid rgba(42,157,143,0.35); border-color: var(--tiriti); }
.hp { position: absolute; left: -9999px; }

/* ---- CTA row ---- */
.cta-row { display: flex; flex-wrap: wrap; gap: 0.8rem; align-items: center; margin-top: 1.25rem; }

/* ---- Footer ---- */
.site-footer { background: var(--whenua-deep); color: #D7E4F1; padding: 3rem 0 2.5rem; margin-top: 2rem; }
.site-footer a { color: #9FE3D8; }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.site-footer h4 { color: #fff; text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.8rem; font-family: "Source Sans 3", sans-serif; }
.site-footer .fine { border-top: 1px solid rgba(255,255,255,0.15); margin-top: 2rem; padding-top: 1.25rem; font-size: 0.9rem; color: #A9C1D8; }

/* utility */
.mt0 { margin-top: 0; }
.center { text-align: center; }
.hero .btn { margin-top: 0.5rem; }
.hero-figure { margin: 2.5rem 0 0; }
.hero-figure img {
  width: 100%; max-height: 520px; object-fit: cover;
  border-radius: 16px; box-shadow: 0 20px 40px -24px rgba(11,42,74,0.5);
}