/* ==========================================================================
   Odin Stones — Shared Design System
   Navy / ivory / rust palette, Playfair Display + Inter, matching brand decks
   ========================================================================== */

:root{
  --navy-950:#141d33;
  --navy-900:#1b2740;
  --navy-800:#243356;
  --navy-700:#2f4370;
  --navy-100:#e7eaf2;
  --ivory:#faf8f4;
  --paper:#ffffff;
  --rust:#c1592f;
  --rust-dark:#9c4423;
  --sage:#5c6f5f;
  --ink:#1b2740;
  --ink-soft:#4a5470;
  --line:#e2e0d8;
  --line-dark:rgba(255,255,255,0.14);
  --shadow:0 20px 50px -25px rgba(20,29,51,0.35);
  --radius:2px;
  --serif:'Playfair Display', Georgia, 'Times New Roman', serif;
  --sans:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --maxw:1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--ivory);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{
  font-family:var(--serif);
  font-weight:600;
  line-height:1.15;
  margin:0 0 .5em;
  color:var(--navy-950);
  letter-spacing:.2px;
}
h1{ font-size:clamp(2.3rem,4.2vw,3.6rem); font-weight:600; }
h2{ font-size:clamp(1.7rem,2.6vw,2.4rem); }
h3{ font-size:1.25rem; }
p{ margin:0 0 1em; color:var(--ink-soft); }
.lede{ font-size:1.2rem; color:var(--ink-soft); max-width:62ch; }
.eyebrow{
  display:inline-flex; align-items:center; gap:.5em;
  font-family:var(--sans); font-weight:600; font-size:.72rem;
  letter-spacing:.16em; text-transform:uppercase; color:var(--rust);
  margin-bottom:.9em;
}
.eyebrow::before{ content:""; width:22px; height:1px; background:var(--rust); display:inline-block; }
.container{ max-width:var(--maxw); margin:0 auto; padding:0 32px; }
section{ padding:88px 0; }
section.tight{ padding:56px 0; }
.section-head{ max-width:680px; margin-bottom:48px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:.55em;
  font-family:var(--sans); font-weight:600; font-size:.86rem;
  letter-spacing:.02em; padding:14px 26px; border-radius:var(--radius);
  border:1px solid transparent; cursor:pointer; transition:all .2s ease;
  white-space:nowrap;
}
.btn-primary{ background:var(--rust); color:#fff; }
.btn-primary:hover{ background:var(--rust-dark); }
.btn-outline{ border-color:rgba(255,255,255,.5); color:#fff; }
.btn-outline:hover{ background:rgba(255,255,255,.12); }
.btn-navy{ background:var(--navy-950); color:#fff; }
.btn-navy:hover{ background:var(--navy-800); }
.btn-ghost{ border-color:var(--line); color:var(--navy-950); }
.btn-ghost:hover{ border-color:var(--navy-950); }
.btn-arrow::after{ content:"→"; transition:transform .2s ease; }
.btn-arrow:hover::after{ transform:translateX(3px); }

/* ---------- Nav ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(250,248,244,0.92); backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{
  max-width:var(--maxw); margin:0 auto; padding:18px 32px;
  display:flex; align-items:center; justify-content:space-between;
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{ width:34px; height:34px; flex:none; }
.brand-word{ font-family:var(--serif); font-size:1.28rem; font-weight:600; letter-spacing:.03em; color:var(--navy-950); }
.brand-word small{ display:block; font-family:var(--sans); font-size:.6rem; letter-spacing:.22em; font-weight:600; color:var(--rust); text-transform:uppercase; margin-top:1px; }
.nav-links{ display:flex; align-items:center; gap:34px; }
.nav-links a{
  font-size:.86rem; font-weight:500; color:var(--ink-soft);
  padding:6px 0; border-bottom:1px solid transparent; transition:all .15s ease;
}
.nav-links a:hover,.nav-links a.active{ color:var(--navy-950); border-color:var(--rust); }
.nav-cta{ display:flex; align-items:center; gap:18px; }
.nav-toggle{ display:none; }

@media (max-width:900px){
  .nav-links{
    position:fixed; inset:64px 0 0 0; background:var(--ivory);
    flex-direction:column; align-items:flex-start; padding:28px 32px; gap:22px;
    transform:translateX(100%); transition:transform .25s ease; overflow-y:auto;
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-links a{ font-size:1.1rem; }
  .nav-toggle{
    display:flex; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px;
  }
  .nav-toggle span{ width:22px; height:2px; background:var(--navy-950); display:block; }
  .nav-cta .btn{ display:none; }
}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(155deg,var(--navy-950) 0%, var(--navy-800) 65%, var(--navy-700) 100%);
  color:#fff; position:relative; overflow:hidden;
  padding:120px 0 100px;
}
.hero::after{
  content:""; position:absolute; right:-120px; top:-120px; width:520px; height:520px;
  border-radius:50%; border:1px solid rgba(255,255,255,.08);
}
.hero::before{
  content:""; position:absolute; right:-40px; bottom:-160px; width:360px; height:360px;
  border-radius:50%; border:1px solid rgba(255,255,255,.08);
}
.hero-grid{ display:grid; grid-template-columns:1.15fr .85fr; gap:56px; align-items:center; position:relative; z-index:2; }
.hero h1{ color:#fff; }
.hero .lede{ color:rgba(255,255,255,.78); }
.hero-actions{ display:flex; gap:16px; margin-top:32px; flex-wrap:wrap; }
.hero-stats{ display:grid; gap:22px; }
.stat-card{
  background:rgba(255,255,255,.05); border:1px solid rgba(255,255,255,.14);
  padding:22px 24px; border-radius:var(--radius);
}
.stat-num{ font-family:var(--serif); font-size:2rem; color:#fff; margin-bottom:2px; }
.stat-label{ font-size:.8rem; color:rgba(255,255,255,.65); letter-spacing:.02em; }

@media (max-width:860px){
  .hero-grid{ grid-template-columns:1fr; }
}

/* ---------- Page header (non-home) ---------- */
.page-header{
  background:linear-gradient(155deg,var(--navy-950) 0%, var(--navy-800) 100%);
  color:#fff; padding:76px 0 64px;
}
.page-header h1{ color:#fff; margin-bottom:.35em; }
.page-header .lede{ color:rgba(255,255,255,.75); }
.crumb{ font-size:.78rem; letter-spacing:.06em; text-transform:uppercase; color:rgba(255,255,255,.55); margin-bottom:14px; }

/* ---------- Cards / grids ---------- */
.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:920px){
  .grid-3,.grid-4{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:640px){
  .grid-2,.grid-3,.grid-4{ grid-template-columns:1fr; }
}

.card{
  background:var(--paper); border:1px solid var(--line); border-radius:var(--radius);
  padding:32px; box-shadow:var(--shadow);
}
.card-flat{ background:var(--paper); border:1px solid var(--line); padding:28px; }
.card-navy{ background:var(--navy-950); color:#fff; padding:32px; border-radius:var(--radius); }
.card-navy p{ color:rgba(255,255,255,.72); }
.card-navy h3{ color:#fff; }

.tag{
  display:inline-block; font-size:.7rem; font-weight:600; letter-spacing:.08em;
  text-transform:uppercase; padding:5px 10px; border:1px solid var(--line); color:var(--ink-soft);
  border-radius:20px;
}
.tag-rust{ border-color:rgba(193,89,47,.35); color:var(--rust); background:rgba(193,89,47,.06); }

/* ---------- Bands ---------- */
.band{ background:var(--paper); }
.band-alt{ background:#f2efe7; }
.band-navy{ background:var(--navy-950); color:#fff; }
.band-navy h2,.band-navy h3{ color:#fff; }
.band-navy p{ color:rgba(255,255,255,.72); }
.band-navy .eyebrow{ color:#e2a487; }
.band-navy .eyebrow::before{ background:#e2a487; }

/* ---------- Logo strip ---------- */
.logo-strip{ display:flex; flex-wrap:wrap; gap:14px 34px; align-items:center; justify-content:center; }
.logo-strip span{
  font-family:var(--serif); font-size:1.02rem; color:var(--ink-soft); opacity:.75; letter-spacing:.02em;
}

/* ---------- Venn ---------- */
.venn{ position:relative; width:100%; max-width:360px; aspect-ratio:1/.92; margin:0 auto; }
.venn svg{ width:100%; height:100%; }

/* ---------- Table ---------- */
table{ width:100%; border-collapse:collapse; }
th,td{ text-align:left; padding:14px 16px; border-bottom:1px solid var(--line); font-size:.92rem; }
th{ font-family:var(--sans); font-weight:600; letter-spacing:.03em; text-transform:uppercase; font-size:.72rem; color:var(--ink-soft); }

/* ---------- Footer ---------- */
.site-footer{ background:var(--navy-950); color:rgba(255,255,255,.7); padding:64px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; margin-bottom:48px; }
.footer-grid h4{ color:#fff; font-family:var(--sans); font-size:.78rem; letter-spacing:.1em; text-transform:uppercase; margin-bottom:16px; }
.footer-grid ul{ list-style:none; margin:0; padding:0; display:grid; gap:10px; }
.footer-grid a{ font-size:.9rem; color:rgba(255,255,255,.68); }
.footer-grid a:hover{ color:#fff; }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12); padding-top:24px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:.8rem; color:rgba(255,255,255,.5);
}
@media (max-width:860px){
  .footer-grid{ grid-template-columns:1fr 1fr; }
}

/* ---------- Utility ---------- */
.mt-0{margin-top:0} .mb-0{margin-bottom:0}
.flex{ display:flex; }
.items-center{ align-items:center; }
.justify-between{ justify-content:space-between; }
.gap-12{ gap:12px; } .gap-20{ gap:20px; }
.text-center{ text-align:center; }
.small{ font-size:.85rem; }
.divider{ height:1px; background:var(--line); border:none; margin:40px 0; }
.numlist{ list-style:none; margin:0; padding:0; display:grid; gap:18px; }
.numlist li{ display:flex; gap:16px; }
.numlist .n{ font-family:var(--serif); font-size:1.1rem; color:var(--rust); flex:none; width:30px; }
.check-list{ list-style:none; margin:0; padding:0; display:grid; gap:10px; }
.check-list li{ display:flex; gap:10px; align-items:flex-start; color:var(--ink-soft); font-size:.95rem; }
.check-list li::before{ content:"—"; color:var(--rust); flex:none; }