/* ============================================================
   $CHAD Bridge — theme.css
   Premium dark theme: CHAD gold → Base blue "bridge" identity.
   ============================================================ */

:root{
  /* surfaces */
  --bg-0:#070610;
  --bg-1:#0d0b18;
  --card:rgba(24,20,38,.72);
  --card-solid:#14111f;
  --line:rgba(255,255,255,.08);
  --line-str:rgba(255,255,255,.14);

  /* brand */
  --gold:#ffb638;
  --gold-2:#f7c65a;
  --gold-deep:#b5791b;
  --base:#0052ff;         /* Base brand blue */
  --base-lite:#4d8bff;
  --green:#3ddc97;
  --red:#ff6b5c;

  /* text */
  --ink:#f4eedd;
  --dim:#b3a88d;
  --mute:#78715c;

  --radius:16px;
  --shadow:0 24px 60px -20px rgba(0,0,0,.7);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  color:var(--ink);
  font-family:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.5;
  padding:28px 16px 60px;
  background:
    radial-gradient(900px 500px at 15% -8%, rgba(255,176,46,.16), transparent 60%),
    radial-gradient(900px 560px at 88% 8%, rgba(0,82,255,.20), transparent 55%),
    radial-gradient(1200px 700px at 50% 120%, rgba(61,220,151,.06), transparent 60%),
    linear-gradient(180deg,var(--bg-1),var(--bg-0));
  background-attachment:fixed;
}

/* subtle animated grain/aurora layer */
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(600px 300px at 50% 0%, rgba(255,182,56,.05), transparent 70%);
  animation:breathe 9s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:.5}50%{opacity:1}}

.wrap{max-width:560px;margin:0 auto}

/* ---------- header ---------- */
.brand{text-align:center;margin-bottom:22px;animation:rise .6s ease both}
.logo{
  width:60px;height:60px;margin:0 auto 12px;border-radius:18px;
  display:grid;place-items:center;font-size:30px;
  background:linear-gradient(150deg,rgba(255,182,56,.22),rgba(0,82,255,.22));
  border:1px solid var(--line-str);
  box-shadow:0 0 0 1px rgba(255,255,255,.03), 0 12px 34px -10px rgba(255,176,46,.4);
}
h1{
  font-size:2rem;line-height:1.1;margin:0 0 6px;font-weight:800;letter-spacing:-.02em;
  background:linear-gradient(92deg,var(--gold) 0%,var(--gold-2) 40%,var(--base-lite) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.tagline{color:var(--dim);font-size:.95rem;max-width:400px;margin:0 auto}

/* ---------- flow badge (WAX → Base) ---------- */
.flow{
  display:flex;align-items:center;justify-content:center;gap:14px;
  margin:18px auto 24px;max-width:360px;
  padding:12px 16px;border-radius:999px;
  background:var(--card);border:1px solid var(--line);backdrop-filter:blur(8px);
}
.flow .node{display:flex;align-items:center;gap:8px;font-weight:700;font-size:.9rem}
.flow .dot{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:14px}
.flow .wax{background:radial-gradient(circle at 30% 30%,#ffd66b,#b5791b);color:#2a1a04}
.flow .basen{background:radial-gradient(circle at 30% 30%,#4d8bff,#0033a8);color:#fff}
.flow .arrow{flex:1;height:2px;position:relative;background:linear-gradient(90deg,var(--gold-deep),var(--base));border-radius:2px;min-width:40px}
.flow .arrow::after{content:"";position:absolute;right:-2px;top:50%;transform:translateY(-50%);
  width:0;height:0;border-left:7px solid var(--base);border-top:5px solid transparent;border-bottom:5px solid transparent}
.flow .arrow::before{content:"";position:absolute;top:50%;left:0;width:8px;height:8px;border-radius:50%;
  background:#fff;box-shadow:0 0 10px 2px rgba(255,255,255,.7);transform:translateY(-50%);animation:travel 2.4s linear infinite}
@keyframes travel{0%{left:0;opacity:0}10%{opacity:1}90%{opacity:1}100%{left:100%;opacity:0}}

/* ---------- one-way notice ---------- */
.oneway{
  display:flex;gap:11px;align-items:flex-start;
  background:linear-gradient(180deg,rgba(255,107,92,.12),rgba(255,107,92,.05));
  border:1px solid rgba(255,107,92,.34);border-radius:14px;
  padding:13px 15px;color:#ffd8cf;font-size:.84rem;line-height:1.5;margin-bottom:18px;
}
.oneway b{color:#ffb0a5}

/* ---------- cards ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;margin-bottom:14px;position:relative;backdrop-filter:blur(10px);
  box-shadow:var(--shadow);animation:rise .5s ease both;transition:border-color .25s, box-shadow .25s;
}
.card.lit{border-color:rgba(61,220,151,.4);box-shadow:0 0 0 1px rgba(61,220,151,.15),var(--shadow)}
.card .step{
  position:absolute;top:-11px;left:18px;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;font-size:.78rem;font-weight:800;color:#160d04;
  background:linear-gradient(180deg,var(--gold),var(--gold-deep));box-shadow:0 4px 12px -3px rgba(255,176,46,.5);
}
.card h3{margin:2px 0 4px;color:var(--ink);font-size:1.06rem;font-weight:700}
.card p{color:var(--dim);font-size:.85rem;margin:0 0 12px}
.done{position:absolute;top:16px;right:18px;color:var(--green);font-weight:800;font-size:.8rem;display:none;align-items:center;gap:5px}
.done::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green)}

.bal{margin-top:10px;font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:.9rem;color:var(--base-lite)}
.bal b{color:var(--ink)}

label{display:block;font-size:.72rem;letter-spacing:.04em;text-transform:uppercase;color:var(--mute);margin:6px 0 5px}
input{
  width:100%;background:#0b0912;border:1px solid var(--line-str);border-radius:10px;
  color:var(--ink);padding:13px 14px;font-family:ui-monospace,monospace;font-size:1rem;transition:border-color .2s, box-shadow .2s;
}
input:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(255,176,46,.15)}

/* ---------- buttons ---------- */
button{
  cursor:pointer;border:none;border-radius:11px;padding:13px 18px;font-weight:800;font-size:.92rem;
  color:#160d04;width:100%;margin-top:8px;transition:transform .12s, filter .15s, box-shadow .2s;
  background:linear-gradient(180deg,var(--gold),var(--gold-deep));
}
button:hover{filter:brightness(1.08);transform:translateY(-1px)}
button:active{transform:translateY(0)}
button:disabled{filter:grayscale(.65) brightness(.6);cursor:not-allowed;transform:none}
button.base{background:linear-gradient(180deg,var(--base-lite),var(--base));color:#fff;box-shadow:0 10px 26px -10px rgba(0,82,255,.6)}
button.wax{background:linear-gradient(180deg,#ffce6b,#b5791b)}
button.go{
  background:linear-gradient(180deg,var(--green),#12855a);color:#04160e;font-size:1.02rem;padding:15px;
  box-shadow:0 12px 30px -10px rgba(61,220,151,.6);
}
button.go:not(:disabled){animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{box-shadow:0 12px 30px -12px rgba(61,220,151,.55)}50%{box-shadow:0 12px 40px -8px rgba(61,220,151,.85)}}
.row{display:flex;gap:10px}
.row button{flex:1}

/* ---------- chips ---------- */
.chip{
  display:inline-block;font-size:.72rem;padding:5px 11px;border-radius:999px;margin-top:10px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--dim);
  font-family:ui-monospace,monospace;
}
.chip.ok{color:var(--green);border-color:rgba(61,220,151,.4);background:rgba(61,220,151,.08)}

/* ---------- status + log ---------- */
#status{margin-top:12px;font-size:.9rem;min-height:1.2em;text-align:center;font-weight:700}
#log{
  font-family:ui-monospace,monospace;font-size:.75rem;color:var(--mute);margin-top:10px;
  white-space:pre-wrap;max-height:120px;overflow:auto;border-top:1px solid var(--line);padding-top:8px;
}
#log:empty{display:none}
.preview{font-size:.82rem;color:var(--gold-2);margin-top:8px;min-height:1em;font-weight:600}

/* ---------- trust footer ---------- */
.trust{margin-top:20px;text-align:center}
.badges{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:14px}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:.74rem;font-weight:600;
  padding:6px 12px;border-radius:999px;background:var(--card);border:1px solid var(--line);color:var(--dim);
}
.badge b{color:var(--ink)}
.contract{
  background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 14px;
  font-size:.78rem;color:var(--mute);backdrop-filter:blur(8px);
}
.contract .lbl{display:block;font-size:.68rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:5px}
.contract .val{display:flex;align-items:center;gap:8px;justify-content:center;flex-wrap:wrap}
.contract code{font-family:ui-monospace,monospace;color:var(--base-lite);font-size:.8rem;word-break:break-all}
.contract a,.copy{color:var(--gold);text-decoration:none;cursor:pointer;font-size:.76rem;border:1px solid var(--line);border-radius:7px;padding:3px 8px;background:rgba(255,255,255,.03)}
.contract a:hover,.copy:hover{border-color:var(--gold)}
.foot{margin-top:16px;color:var(--mute);font-size:.72rem;text-align:center}
.foot a{color:var(--dim)}

@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ---------- responsive ---------- */
@media(max-width:480px){
  h1{font-size:1.6rem}
  .card{padding:16px}
  body{padding:20px 12px 48px}
  .row{flex-direction:column}
}