/* ============================================================
   BitVersus — Design tokens
   Inspired by the logo: a glossy jet-black blob with a single
   cool highlight. Near-black ink, clean paper background, one
   confident indigo accent used sparingly (the "Versus" energy).
   ============================================================ */
:root{
  --ink:        #0B0B0D;   /* matches the logo's black */
  --ink-soft:   #34343A;
  --muted:      #6C6C74;
  --paper:      #F7F7F5;
  --paper-raise:#FFFFFF;
  --line:       #E4E4E1;
  --accent:     #4F46E5;   /* indigo — the "versus" color */
  --accent-dim: #ECEBFC;
  --accent-2:   #16A970;   /* secondary — pass/payout signal */
  --alert:      #D6552C;   /* caution / red flags */
  --alert-dim:  #FBEAE1;
  --navy-deep:  #0B0B0D;   /* header/footer band, straight from the logo */

  --font-display: "Sora", "Arial", sans-serif;
  --font-body:    "Inter", -apple-system, "Segoe UI", sans-serif;
  --font-mono:    "IBM Plex Mono", "Courier New", monospace;

  --maxw: 1120px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:var(--ink); }
.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }

h1,h2,h3,h4{
  font-family:var(--font-display); color:var(--ink); line-height:1.16; margin:0 0 .5em;
  letter-spacing:-0.015em;
}
h1{ font-size:clamp(1.9rem,4.2vw,2.6rem); font-weight:800; }
h2{ font-size:clamp(1.35rem,2.8vw,1.8rem); font-weight:700; margin-top:2.2em; }
h3{ font-size:1.15rem; font-weight:700; margin-top:1.6em; }
p{ margin:0 0 1.1em; }
ul,ol{ margin:0 0 1.2em; padding-left:1.3em; }
li{ margin-bottom:.4em; }
strong{ color:var(--ink); }

/* ---------- Signature element: the VS divider ---------- */
/* A thin line interrupted by a small solid dot, echoing the
   glossy highlight on the logo — used everywhere a section ends. */
.vs-divider{
  position:relative;
  height:1px;
  background:var(--line);
  margin:3em auto;
}
.vs-divider::after{
  content:"";
  position:absolute; top:50%; left:50%;
  width:9px; height:9px; border-radius:50%;
  background:var(--accent);
  transform:translate(-50%,-50%);
  box-shadow:0 0 0 6px var(--paper);
}
.vs-divider.small{ margin:1.8em 0; }

/* ---------- Header ---------- */
.site-header{
  background:var(--navy-deep);
  color:#EDEFF2;
  position:sticky; top:0; z-index:50;
  border-bottom:1px solid #232326;
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 24px; max-width:var(--maxw); margin:0 auto;
}
.logo{
  font-family:var(--font-display); font-weight:700; font-size:1.2rem;
  color:#fff; text-decoration:none; letter-spacing:-0.02em;
  display:flex; align-items:center; gap:10px;
}
.logo-mark{ width:30px; height:30px; object-fit:contain; }
.accent-word{ color:var(--accent); }
nav.main-nav{ display:flex; align-items:center; gap:22px; }
nav.main-nav a{
  color:#C4C4CB; text-decoration:none; font-family:var(--font-display);
  font-size:.9rem; font-weight:500; letter-spacing:.01em;
}
nav.main-nav a:hover, nav.main-nav a.active{ color:#fff; }
.nav-toggle{
  display:none; background:none; border:1px solid #303034; color:#fff;
  font-size:1.1rem; padding:6px 10px; border-radius:6px; cursor:pointer;
}
.dropdown{ position:relative; }
.dropdown-menu{
  display:none; position:absolute; top:130%; left:0; background:#141416;
  border:1px solid #26262A; border-radius:8px; min-width:240px; padding:8px;
  box-shadow:0 12px 28px rgba(0,0,0,.45);
}
.dropdown:hover .dropdown-menu, .dropdown:focus-within .dropdown-menu{ display:block; }
.dropdown-menu a{ display:block; padding:8px 10px; border-radius:5px; font-size:.86rem; }
.dropdown-menu a:hover{ background:#1D1D21; }

/* ---------- Mini hero (articles come first, so this stays short) ---------- */
.hero-mini{
  padding:40px 0 28px;
  display:flex; align-items:flex-end; justify-content:space-between; gap:32px; flex-wrap:wrap;
}
.hero-mini-text{ max-width:600px; }
.eyebrow{
  font-family:var(--font-mono); font-size:.76rem; letter-spacing:.11em;
  text-transform:uppercase; color:var(--accent); font-weight:600;
  display:inline-block; margin-bottom:12px;
}
.hero-mini h1{ margin-bottom:.28em; }
.hero-mini .lede{ font-size:1.05rem; color:var(--ink-soft); margin:0; }
.hero-mini-stats{ display:flex; gap:0; border:1px solid var(--line); border-radius:10px; overflow:hidden; background:var(--paper-raise); flex-shrink:0; }
.stat-cell{ padding:14px 20px; border-right:1px solid var(--line); text-align:center; }
.stat-cell:last-child{ border-right:none; }
.stat-num{ font-family:var(--font-mono); font-size:1.3rem; font-weight:600; color:var(--ink); }
.stat-label{ font-size:.72rem; color:var(--muted); margin-top:2px; white-space:nowrap; }

.btn-row{ display:flex; gap:12px; margin-top:22px; flex-wrap:wrap; }
.btn{
  display:inline-block; font-family:var(--font-display); font-weight:600;
  font-size:.9rem; padding:11px 20px; border-radius:7px; text-decoration:none;
  border:1px solid transparent;
}
.btn-primary{ background:var(--ink); color:#fff; }
.btn-primary:hover{ background:#000; }
.btn-ghost{ border-color:var(--line); color:var(--ink); background:var(--paper-raise); }
.btn-ghost:hover{ border-color:var(--accent); color:var(--accent); }

/* ---------- Cover images (article photo covers) ---------- */
.cover-frame{
  position:relative; width:100%; aspect-ratio:1200/630; border-radius:12px; overflow:hidden;
  background:linear-gradient(135deg, var(--cat-accent,var(--accent)) 0%, #0B0B0D 130%);
  margin:0 0 8px;
}
.cover-frame img{ width:100%; height:100%; object-fit:cover; display:block; }
.cover-frame.thumb{ aspect-ratio:16/9; border-radius:9px; margin-bottom:12px; }
.cover-frame.cover-missing img{ display:none; }
.cover-frame.cover-missing::after{
  content:"Add cover photo \2192  " attr(data-file);
  position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  text-align:center; padding:12px; font-family:var(--font-mono); font-size:.72rem;
  color:rgba(255,255,255,.85); background:rgba(0,0,0,.18);
}
.cover-frame.thumb.cover-missing::after{ font-size:.65rem; }
.cover-credit{ font-size:.78rem; color:var(--muted); margin:0 0 1.6em; }

/* ---------- Featured article (top of homepage article feed) ---------- */
.featured-card{
  display:grid; grid-template-columns:1.1fr 1fr; gap:0; align-items:stretch;
  background:var(--ink); color:#fff; border-radius:14px;
  overflow:hidden; text-decoration:none; margin:22px 0 20px;
}
.featured-card .cover-frame{ border-radius:0; margin:0; height:100%; }
.featured-card-text{ padding:30px 32px; display:flex; flex-direction:column; justify-content:center; }
.featured-card .article-meta{ color:#9C9CA6; }
.featured-card h3{ color:#fff; font-size:1.4rem; margin:.3em 0 .4em; }
.featured-card .excerpt{ color:#C7C7D0; max-width:460px; }
.featured-cta{ display:inline-block; margin-top:6px; color:#A7A2F5; font-family:var(--font-display); font-weight:600; font-size:.92rem; }
.featured-card:hover .featured-cta{ text-decoration:underline; }

/* ---------- Section headers ---------- */
.section-head{ display:flex; align-items:baseline; justify-content:space-between; gap:12px; flex-wrap:wrap; }
.section-head .eyebrow{ margin-bottom:0; }

/* ---------- Category grid ---------- */
.cat-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-top:22px; }
.cat-card{
  background:var(--paper-raise); border:1px solid var(--line); border-radius:10px;
  padding:20px; text-decoration:none; color:var(--ink); display:flex; flex-direction:column;
  gap:8px; transition:border-color .15s ease, transform .15s ease;
}
.cat-card:hover{ border-color:var(--accent); transform:translateY(-2px); }
.cat-tag{
  font-family:var(--font-mono); font-size:.7rem; letter-spacing:.06em;
  color:var(--accent); text-transform:uppercase; font-weight:600;
}
.cat-card h3{ margin:2px 0 0; font-size:1.05rem; }
.cat-card p{ color:var(--muted); font-size:.9rem; margin:0; }

/* ---------- Article list / cards ---------- */
.article-list{ display:grid; grid-template-columns:repeat(2,1fr); gap:18px; margin-top:22px; }
.article-list.wide{ grid-template-columns:repeat(3,1fr); }
.article-card{
  background:var(--paper-raise); border:1px solid var(--line); border-radius:10px; padding:22px;
  text-decoration:none; color:var(--ink); display:flex; flex-direction:column; gap:10px;
}
.article-card:hover{ border-color:var(--accent); }
.article-meta{ font-family:var(--font-mono); font-size:.72rem; color:var(--muted); text-transform:uppercase; letter-spacing:.05em; }
.article-card h3{ font-size:1.05rem; margin:0; }
.article-card .excerpt{ color:var(--ink-soft); font-size:.92rem; margin:0; }

/* ---------- Article page ---------- */
.breadcrumb{ font-family:var(--font-mono); font-size:.78rem; color:var(--muted); margin:22px 0 6px; }
.breadcrumb a{ color:var(--muted); text-decoration:none; }
.breadcrumb a:hover{ text-decoration:underline; }
.article-header{ padding:14px 0 8px; }
.article-header .article-meta{ margin-bottom:14px; }
.article-body{ max-width:760px; }
.article-body h2{ border-bottom:1px solid var(--line); padding-bottom:.35em; }
.callout{
  background:var(--accent-dim); border-left:4px solid var(--accent);
  border-radius:0 8px 8px 0; padding:16px 18px; margin:1.6em 0; font-size:.96rem;
}
.callout.alert{ background:var(--alert-dim); border-left-color:var(--alert); }
.risk-note{
  background:var(--paper-raise); border:1px dashed var(--line); border-radius:8px;
  padding:16px 18px; font-size:.86rem; color:var(--muted); margin-top:2.4em;
}
.faq dt{ font-family:var(--font-display); font-weight:700; margin-top:1.1em; }
.faq dd{ margin:.3em 0 0; color:var(--ink-soft); }
table.data{ width:100%; border-collapse:collapse; margin:1.4em 0; font-size:.92rem; }
table.data th, table.data td{ border:1px solid var(--line); padding:9px 12px; text-align:left; }
table.data th{ background:var(--ink); color:#fff; font-family:var(--font-display); font-size:.82rem; }
table.data tr:nth-child(even){ background:var(--paper); }

/* ---------- About / contact / legal ---------- */
.page-body{ max-width:760px; }
.contact-form{ display:grid; gap:14px; max-width:520px; margin-top:20px; }
.contact-form label{ font-family:var(--font-display); font-size:.85rem; font-weight:600; }
.contact-form input, .contact-form textarea{
  width:100%; padding:10px 12px; border:1px solid var(--line); border-radius:7px;
  font-family:var(--font-body); font-size:1rem; background:var(--paper-raise);
}
.contact-form textarea{ min-height:140px; resize:vertical; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--navy-deep); color:#B7B7BE; margin-top:70px; padding:42px 0 26px; }
.footer-grid{ display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:26px; }
.footer-grid h4{ color:#fff; font-size:.85rem; text-transform:uppercase; letter-spacing:.06em; margin-bottom:12px; }
.footer-grid a{ color:#B7B7BE; text-decoration:none; font-size:.9rem; display:block; margin-bottom:8px; }
.footer-grid a:hover{ color:#fff; }
.footer-bottom{
  border-top:1px solid #232326; margin-top:30px; padding-top:18px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  font-size:.78rem; color:#818189;
}
.footer-risk{ font-size:.78rem; color:#818189; max-width:900px; margin-top:16px; line-height:1.5; }

/* ---------- Cookie banner ---------- */
#cookie-banner{
  position:fixed; left:0; right:0; bottom:0; z-index:200;
  background:var(--ink); color:#E7E7EA; padding:18px 24px;
  display:none; box-shadow:0 -6px 24px rgba(0,0,0,.35);
  border-top:1px solid #26262A;
}
#cookie-banner .wrap{
  display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap;
}
#cookie-banner p{ margin:0; font-size:.88rem; max-width:680px; }
#cookie-banner a{ color:#A7A2F5; }
.cookie-actions{ display:flex; gap:10px; flex-shrink:0; }
.cookie-actions button{
  font-family:var(--font-display); font-weight:600; font-size:.85rem;
  padding:9px 16px; border-radius:6px; cursor:pointer; border:1px solid transparent;
}
#cookie-accept{ background:var(--accent); color:#fff; }
#cookie-reject{ background:transparent; color:#C4C4CB; border-color:#303034; }

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .cat-grid{ grid-template-columns:repeat(2,1fr); }
  .article-list{ grid-template-columns:1fr; }
  .article-list.wide{ grid-template-columns:repeat(2,1fr); }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .hero-mini{ flex-direction:column; align-items:flex-start; }
  .hero-mini-stats{ width:100%; }
  .stat-cell{ flex:1; }
  .featured-card{ grid-template-columns:1fr; }
  .featured-card .cover-frame{ aspect-ratio:1200/630; }
}
@media (max-width:640px){
  nav.main-nav{
    display:none; position:absolute; top:100%; left:0; right:0;
    background:var(--navy-deep); flex-direction:column; align-items:flex-start;
    padding:14px 24px 20px; gap:14px; border-bottom:1px solid #26262A;
  }
  nav.main-nav.open{ display:flex; }
  .nav-toggle{ display:inline-block; }
  .dropdown-menu{ position:static; display:none; border:none; background:none; padding:4px 0 0 10px; box-shadow:none; }
  .dropdown.open .dropdown-menu{ display:block; }
  .cat-grid{ grid-template-columns:1fr; }
  .article-list.wide{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .hero-mini-stats{ flex-wrap:wrap; }
  .featured-card-text{ padding:22px 20px; }
  h1{ font-size:1.6rem; }
}