/* ─────────────────────────────────────────────────────────
   FIFA World Cup 2026 · AI & Vibe-Coding Atlas
   Palette: deep night pitch + 2026 host-nation accents
   ───────────────────────────────────────────────────────── */
:root{
  --bg:#0a0d12;
  --bg2:#0e131b;
  --panel:#11171f;
  --panel2:#151c26;
  --line:#1f2937;
  --ink:#eef2f7;
  --muted:#8b97a8;
  --faint:#5c6678;

  --usa:#3b82f6;     /* blue  */
  --can:#ef4444;     /* red   */
  --mex:#22c55e;     /* green */
  --gold:#f5c451;    /* trophy gold */
  --accent:#7c5cff;  /* electric violet */

  --r:18px;
  --maxw:1180px;
  --shadow:0 18px 50px -22px rgba(0,0,0,.8);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:Inter,"Noto Sans SC",system-ui,-apple-system,sans-serif;
  line-height:1.5;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
html[lang="zh-CN"] body{font-family:"Noto Sans SC",Inter,system-ui,sans-serif}
a{color:inherit}
.grain{position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.035;
  background-image:radial-gradient(circle at 1px 1px,#fff 1px,transparent 0);
  background-size:4px 4px;mix-blend-mode:screen}

/* ── HERO ── */
.hero{position:relative;overflow:hidden;
  background:
    radial-gradient(1200px 520px at 78% -10%,rgba(124,92,255,.30),transparent 60%),
    radial-gradient(900px 480px at 8% 0%,rgba(59,130,246,.22),transparent 55%),
    linear-gradient(180deg,#0c1119,var(--bg));
  border-bottom:1px solid var(--line)}
.hero__glow{position:absolute;left:50%;top:-30%;width:680px;height:680px;
  transform:translateX(-50%);border-radius:50%;z-index:0;
  background:conic-gradient(from 200deg,var(--usa),var(--mex),var(--gold),var(--can),var(--usa));
  filter:blur(120px);opacity:.20}

.topbar{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:22px 24px}
.brand{display:flex;align-items:center;gap:11px;font-family:Sora,sans-serif;font-weight:800}
.brand__mark{display:grid;place-items:center;width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--accent),var(--usa));color:#fff;
  font-size:15px;letter-spacing:-.5px;box-shadow:0 6px 18px -6px var(--accent)}
.brand__txt{letter-spacing:3px;font-size:14px}
.topbar__right{display:flex;align-items:center;gap:16px}
.topbar__meta{display:flex;align-items:center;gap:10px;color:var(--muted);
  font-family:"JetBrains Mono",monospace;font-size:11.5px;letter-spacing:1.5px}
.lang{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:var(--panel)}
.lang button{appearance:none;border:0;background:transparent;color:var(--muted);
  font-family:inherit;font-size:12.5px;font-weight:600;padding:6px 13px;cursor:pointer;transition:.15s}
.lang button[aria-pressed="true"]{background:linear-gradient(135deg,var(--accent),var(--usa));color:#fff}
.lang button:hover[aria-pressed="false"]{color:var(--ink)}
@media(max-width:560px){.topbar__meta span[data-i18n]{display:none}}
.flag-dots{display:inline-flex;gap:4px}
.flag-dots i{width:8px;height:8px;border-radius:50%;display:block}
.flag-dots i:nth-child(1){background:var(--usa)}
.flag-dots i:nth-child(2){background:var(--can)}
.flag-dots i:nth-child(3){background:var(--mex)}

.hero__inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;
  padding:48px 24px 60px}
.hero__kicker{font-family:"JetBrains Mono",monospace;color:var(--gold);
  letter-spacing:3px;font-size:12px;margin:0 0 18px}
.hero__title{font-family:Sora,sans-serif;font-weight:800;
  font-size:clamp(34px,6vw,68px);line-height:1.04;letter-spacing:-1.5px;margin:0}
.grad{background:linear-gradient(100deg,var(--usa),var(--accent) 45%,var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero__sub{max-width:640px;color:var(--muted);font-size:clamp(15px,1.7vw,18px);
  margin:22px 0 0}

/* ── STATS ── */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:40px;max-width:760px}
.stat{background:linear-gradient(180deg,var(--panel2),var(--panel));
  border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.stat__n{font-family:Sora,sans-serif;font-weight:800;font-size:30px;line-height:1}
.stat__l{color:var(--muted);font-size:12px;margin-top:6px;letter-spacing:.3px}
.stat:nth-child(1) .stat__n{color:var(--usa)}
.stat:nth-child(2) .stat__n{color:var(--mex)}
.stat:nth-child(3) .stat__n{color:var(--gold)}
.stat:nth-child(4) .stat__n{color:var(--can)}

/* ── CONTROLS ── */
.controls{position:sticky;top:0;z-index:30;
  background:rgba(10,13,18,.82);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line)}
.controls__inner{max-width:var(--maxw);margin:0 auto;padding:14px 24px;
  display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.search{position:relative;flex:1;min-width:240px}
.search__icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:18px;height:18px;color:var(--faint)}
#q{width:100%;padding:12px 14px 12px 42px;border-radius:12px;
  background:var(--panel);border:1px solid var(--line);color:var(--ink);
  font-size:14.5px;font-family:inherit;outline:none;transition:border-color .2s}
#q:focus{border-color:var(--accent)}
.filters{display:flex;gap:8px;flex-wrap:wrap}
.chip{cursor:pointer;border:1px solid var(--line);background:var(--panel);
  color:var(--muted);padding:9px 14px;border-radius:999px;font-size:13px;
  font-weight:500;white-space:nowrap;transition:.18s;display:flex;align-items:center;gap:7px}
.chip:hover{color:var(--ink);border-color:#2b3647}
.chip[aria-pressed="true"]{color:#fff;border-color:transparent}
.chip[aria-pressed="true"][data-c="all"]{background:linear-gradient(135deg,var(--accent),var(--usa))}
.chip .dot{width:8px;height:8px;border-radius:50%}
.chip__n{font-family:"JetBrains Mono",monospace;font-size:11px;opacity:.7}

/* ── GRID ── */
.wrap{max-width:var(--maxw);margin:0 auto;padding:34px 24px 80px;position:relative;z-index:1}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:18px}
.card{position:relative;background:linear-gradient(180deg,var(--panel2),var(--panel));
  border:1px solid var(--line);border-radius:var(--r);padding:0 22px 22px;
  display:flex;flex-direction:column;gap:12px;transition:.2s;overflow:hidden}
.card:hover{transform:translateY(-4px);border-color:#2c3850;box-shadow:var(--shadow)}

/* ── per-project thumbnail (real screenshot over gradient fallback) ── */
.thumb{position:relative;margin:0 -22px 4px;height:150px;display:grid;place-items:center;
  border-bottom:1px solid rgba(255,255,255,.06);overflow:hidden}
.thumb::after{content:"";position:absolute;inset:0;z-index:3;
  background:linear-gradient(180deg,transparent 58%,rgba(8,11,16,.55));pointer-events:none}
/* real preview image: sits above the gradient+monogram, fades in on load */
.thumb__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:top center;
  z-index:2;opacity:0;transition:opacity .35s ease}
.thumb__img.is-loaded{opacity:1}
.thumb__mono{font-family:Sora,sans-serif;font-weight:800;font-size:46px;letter-spacing:-1px;
  color:#fff;text-shadow:0 2px 18px rgba(0,0,0,.35);z-index:1;line-height:1}
.thumb__glyph{position:absolute;right:14px;bottom:10px;font-size:24px;opacity:.92;z-index:4;
  filter:drop-shadow(0 2px 6px rgba(0,0,0,.4))}
.thumb__badge{position:absolute;left:14px;top:12px;z-index:4;
  background:rgba(8,11,16,.72)!important;backdrop-filter:blur(4px)}
.card__cat{font-size:11px;font-weight:600;letter-spacing:.4px;color:var(--cat,var(--accent));
  text-transform:uppercase}
.badge{font-size:10.5px;font-weight:600;padding:4px 9px;border-radius:999px;
  border:1px solid var(--line);color:var(--muted);white-space:nowrap;letter-spacing:.3px}
.badge[data-s="live"]{color:#34d399;border-color:rgba(52,211,153,.35);background:rgba(52,211,153,.08)}
.badge[data-s="announced"]{color:#60a5fa;border-color:rgba(96,165,250,.35);background:rgba(96,165,250,.08)}
.badge[data-s="in-testing"]{color:var(--gold);border-color:rgba(245,196,81,.35);background:rgba(245,196,81,.08)}
.badge[data-s="repo"],.badge[data-s="hackathon"]{color:#c4b5fd;border-color:rgba(196,181,253,.35);background:rgba(196,181,253,.08)}
.card__name{font-family:Sora,sans-serif;font-weight:700;font-size:19px;line-height:1.2;margin:0}
.card__one{color:var(--ink);font-weight:500;font-size:14px;opacity:.9;margin:-4px 0 0}
.card__desc{color:var(--muted);font-size:13.5px;line-height:1.55;margin:0}
.card__ai{font-size:12.5px;color:var(--faint);line-height:1.5;
  border-left:2px solid var(--cat,var(--accent));padding-left:11px}
.card__ai b{color:var(--muted);font-weight:600}
.card__foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;
  padding-top:6px;gap:10px}
.card__org{font-size:12px;color:var(--faint);font-family:"JetBrains Mono",monospace;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.card__link{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;
  font-weight:600;color:var(--ink);text-decoration:none;padding:7px 12px;
  border:1px solid var(--line);border-radius:10px;transition:.18s;white-space:nowrap}
.card__link:hover{border-color:var(--cat,var(--accent));color:#fff;background:rgba(124,92,255,.08)}
.conf{position:absolute;bottom:14px;right:16px;font-size:9.5px;letter-spacing:.5px;
  color:var(--faint);text-transform:uppercase;opacity:.6}
.tag-illus{font-size:10px;color:var(--gold);border:1px dashed rgba(245,196,81,.4);
  border-radius:6px;padding:1px 6px;margin-left:6px}

.empty{text-align:center;color:var(--muted);padding:60px 0}

/* ── FOOTER ── */
.foot{border-top:1px solid var(--line);background:var(--bg2)}
.foot__inner{max-width:var(--maxw);margin:0 auto;padding:34px 24px;
  display:flex;gap:24px;justify-content:space-between;flex-wrap:wrap}
.foot strong{font-family:Sora,sans-serif}
.foot p{color:var(--muted);font-size:13px;margin:6px 0 0;max-width:520px}
.foot__note{color:var(--faint)!important;font-size:12px!important}

@media(max-width:680px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .hero__inner{padding:34px 20px 48px}
}
@keyframes fade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.card{animation:fade .4s both}