/* ============================================================
   cioforum.ai — Boardroom Navy design system
   Palette: deep navy, ivory serif, gold restraint,
   editorial cream stat bands.
   ============================================================ */

:root{
  --navy:#0E2235;         /* page background */
  --navy-2:#13293F;       /* raised surface */
  --navy-3:#0A1929;       /* deeper wells / footer */
  --ivory:#F4F1EA;        /* primary text on navy */
  --muted:#9FB0C0;        /* secondary text on navy */
  --gold:#C8A254;         /* accent */
  --gold-bright:#D9A441;  /* stat numbers on dark bands */
  --cream:#F6F1E7;        /* editorial light band */
  --ink:#20201C;          /* text on cream */
  --ink-muted:#6E685A;    /* secondary text on cream */
  --hair:rgba(244,241,234,.12);
  --hair-gold:rgba(200,162,84,.35);
  --hair-ink:rgba(32,32,28,.14);
  --max:1120px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-font-smoothing:antialiased; }
body{
  margin:0; background:var(--navy); color:var(--ivory);
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  font-size:16px; line-height:1.6;
}
.font-display{ font-family:'Fraunces','Georgia',serif; }
::selection{ background:var(--gold); color:var(--navy); }
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
a:focus-visible, button:focus-visible{ outline:2px solid var(--gold); outline-offset:3px; }

.wrap{ max-width:var(--max); margin:0 auto; padding:0 24px; }
.eyebrow{ letter-spacing:.22em; text-transform:uppercase; font-size:.7rem; font-weight:600; }
.text-muted{ color:var(--muted); }
.text-gold{ color:var(--gold); }

h1,h2,h3{ font-family:'Fraunces','Georgia',serif; font-weight:500; line-height:1.12; margin:0; letter-spacing:-.01em; }
h1{ font-size:clamp(2.4rem,5.5vw,4.2rem); }
h2{ font-size:clamp(1.9rem,3.6vw,2.8rem); }
h3{ font-size:1.45rem; }
p{ margin:0; }

/* ---------- skip link ---------- */
.skip{ position:absolute; left:-9999px; top:0; background:var(--gold); color:var(--navy); padding:.6rem 1rem; z-index:100; font-size:.85rem; }
.skip:focus{ left:12px; top:12px; }

/* ---------- nav ---------- */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:50;
  background:rgba(14,34,53,.88); backdrop-filter:blur(10px);
  border-bottom:1px solid var(--hair);
}
.nav-inner{ max-width:var(--max); margin:0 auto; padding:0 24px; height:68px; display:flex; align-items:center; justify-content:space-between; gap:16px; }
.brand{ font-family:'Fraunces',serif; font-size:1.15rem; color:var(--ivory); white-space:nowrap; }
.brand .brand-sub{ font-family:'Inter',sans-serif; font-size:.62rem; letter-spacing:.2em; text-transform:uppercase; color:var(--muted); display:block; margin-top:1px; }
.nav-links{ display:flex; align-items:center; gap:28px; font-size:.88rem; }
.nav-links a{ color:var(--ivory); transition:color .2s; }
.nav-links a:hover{ color:var(--gold); }
.nav-links a.active{ color:var(--gold); }
.nav-cta{ border:1px solid var(--hair-gold); color:var(--gold)!important; padding:.55rem 1.1rem; transition:background .2s,color .2s; }
.nav-cta:hover{ background:var(--gold); color:var(--navy)!important; }
.menu-btn{ display:none; background:none; border:none; color:var(--ivory); padding:8px; cursor:pointer; }
.mobile-menu{ display:none; border-top:1px solid var(--hair); background:var(--navy); }
.mobile-menu a{ display:block; padding:.9rem 24px; border-bottom:1px solid var(--hair); font-size:.95rem; }
.mobile-menu a:last-child{ border-bottom:none; }
.mobile-menu.open{ display:block; }
@media (max-width:820px){
  .nav-links{ display:none; }
  .menu-btn{ display:block; }
}

/* ---------- buttons ---------- */
.btn{ display:inline-block; font-size:.88rem; font-weight:600; padding:.9rem 1.8rem; transition:transform .2s,box-shadow .2s,background .2s,color .2s; }
.btn-gold{ background:var(--gold); color:var(--navy); }
.btn-gold:hover{ transform:translateY(-2px); box-shadow:0 10px 30px rgba(200,162,84,.28); }
.btn-outline{ border:1px solid var(--hair-gold); color:var(--gold); }
.btn-outline:hover{ background:var(--gold); color:var(--navy); }
.link-gold{ color:var(--gold); font-size:.9rem; font-weight:600; }
.link-gold .arr{ display:inline-block; transition:transform .25s; }
.link-gold:hover .arr{ transform:translate(3px,-3px); }

/* ---------- sections ---------- */
.section{ padding:96px 0; border-top:1px solid var(--hair); }
.section-tight{ padding:64px 0; }
.hero{ padding:180px 0 110px; border-top:none; position:relative; overflow:hidden; }
.hero-glow{ position:absolute; inset:-30% -10% auto auto; width:70%; height:120%; background:radial-gradient(55% 55% at 70% 25%, rgba(200,162,84,.14), transparent 65%); pointer-events:none; }

/* ---------- editorial stat band (cream) ---------- */
.band-cream{ background:var(--cream); color:var(--ink); border-top:1px solid var(--hair-ink); }
.band-cream .eyebrow{ color:var(--ink-muted); }
.stat-band{ display:grid; grid-template-columns:repeat(auto-fit,minmax(160px,1fr)); gap:32px; padding:44px 0; }
.stat-band .num{ font-family:'Fraunces',serif; font-size:2.4rem; color:var(--gold-bright); line-height:1; }
.band-cream .stat-band .num{ color:#9A6B2F; }
.stat-band .lbl{ font-size:.78rem; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-muted); margin-top:8px; }

/* dark editorial band (navy-3 with gold stats) */
.band-dark{ background:var(--navy-3); }
.band-dark .stat-band .lbl{ color:var(--muted); }

/* ---------- cards ---------- */
.grid{ display:grid; gap:1px; background:var(--hair); border:1px solid var(--hair); }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
@media (max-width:900px){ .grid-3{ grid-template-columns:1fr; } .grid-2{ grid-template-columns:1fr; } }
.card{ background:var(--navy-2); padding:36px 32px; position:relative; transition:transform .3s; }
.card:hover{ transform:translateY(-4px); }
.card::after{ content:''; position:absolute; inset:0; border:1px solid var(--gold); opacity:0; transition:opacity .3s; pointer-events:none; }
.card:hover::after{ opacity:.5; }
.card h3{ margin-top:14px; }
.card p{ margin-top:12px; font-size:.9rem; color:var(--muted); }
.pill{ display:inline-block; font-size:.62rem; letter-spacing:.18em; text-transform:uppercase; color:var(--gold); border:1px solid var(--hair-gold); padding:.25rem .6rem; border-radius:999px; }

/* cream cards */
.band-cream .grid{ background:var(--hair-ink); border-color:var(--hair-ink); }
.band-cream .card{ background:#FBF8F1; }
.band-cream .card p{ color:var(--ink-muted); }
.band-cream .pill{ color:#9A6B2F; border-color:rgba(154,107,47,.4); }

/* ---------- lists / rows ---------- */
.row-list{ border-top:1px solid var(--hair); }
.row{ display:grid; grid-template-columns:1fr 2fr; gap:32px; padding:36px 0; border-bottom:1px solid var(--hair); align-items:start; }
@media (max-width:760px){ .row{ grid-template-columns:1fr; gap:12px; } }
.row .meta{ font-size:.72rem; letter-spacing:.18em; text-transform:uppercase; color:var(--muted); margin-top:8px; }
.row p{ font-size:.92rem; color:var(--muted); }

/* ---------- case study article ---------- */
.article{ max-width:760px; }
.article h2{ font-size:1.7rem; margin-top:56px; }
.article p{ margin-top:18px; color:var(--muted); font-size:1rem; line-height:1.75; }
.article ul{ margin:18px 0 0; padding-left:20px; color:var(--muted); font-size:1rem; line-height:1.75; }
.article li{ margin-top:8px; }
.article .lede{ font-size:1.2rem; color:var(--ivory); font-family:'Fraunces',serif; line-height:1.5; }
.kpi-strip{ display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:24px; border-block:1px solid var(--hair); padding:28px 0; margin:40px 0; }
.kpi-strip .num{ font-family:'Fraunces',serif; font-size:2rem; color:var(--gold); line-height:1; }
.kpi-strip .lbl{ font-size:.72rem; letter-spacing:.14em; text-transform:uppercase; color:var(--muted); margin-top:6px; }

/* ---------- footer / contact ---------- */
.prefooter{ background:var(--navy-3); border-top:1px solid var(--hair); padding:88px 0; }
.footer{ border-top:1px solid var(--hair); padding:36px 0; font-size:.85rem; color:var(--muted); }
.footer-inner{ display:flex; flex-wrap:wrap; justify-content:space-between; gap:16px; align-items:center; }
.footer a:hover{ color:var(--gold); }

/* ---------- reveal (progressive enhancement only) ---------- */
html.js .reveal{ opacity:0; transform:translateY(18px); transition:opacity .7s cubic-bezier(.2,.6,.2,1),transform .7s cubic-bezier(.2,.6,.2,1); }
html.js .reveal.is-in{ opacity:1; transform:none; }
html.js .reveal-d1{ transition-delay:.08s; } html.js .reveal-d2{ transition-delay:.16s; }
@media (prefers-reduced-motion:reduce){
  html.js .reveal{ opacity:1!important; transform:none!important; transition:none!important; }
  html{ scroll-behavior:auto; }
  .card,.btn{ transition:none!important; }
}

/* ---------- forms ---------- */
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
@media (max-width:700px){ .form-grid{ grid-template-columns:1fr; } }
.field{ display:flex; flex-direction:column; gap:8px; }
.field label{ font-size:.72rem; letter-spacing:.14em; text-transform:uppercase; color:var(--muted); font-weight:600; }
.field input, .field select, .field textarea{
  background:var(--navy-2); border:1px solid var(--hair); color:var(--ivory);
  font-family:'Inter',sans-serif; font-size:.95rem; padding:.85rem 1rem; width:100%;
  transition:border-color .2s;
}
.field input:focus, .field select:focus, .field textarea:focus{ outline:none; border-color:var(--gold); }
.field textarea{ min-height:120px; resize:vertical; }
.field select{ appearance:none; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239FB0C0' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 1rem center; }
.field-full{ grid-column:1 / -1; }

/* ---------- split layouts ---------- */
.split{ display:grid; gap:56px; align-items:start; }
.split-13{ grid-template-columns:1fr 2fr; }
.split-11{ grid-template-columns:1fr 1fr; }
@media (max-width:860px){ .split-13,.split-11{ grid-template-columns:1fr; gap:36px; } }

/* ---------- helpers ---------- */
.mt-1{ margin-top:8px; } .mt-2{ margin-top:16px; } .mt-3{ margin-top:24px; }
.mt-4{ margin-top:32px; } .mt-6{ margin-top:48px; } .mt-8{ margin-top:64px; }
.max-2xl{ max-width:44rem; } .max-xl{ max-width:38rem; }
.lead{ font-size:1.05rem; color:var(--muted); line-height:1.7; }
.sr-only{ position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0; }
.crumb{ font-size:.78rem; color:var(--muted); }
.crumb a:hover{ color:var(--gold); }