/* Aligns app.html with the public site design system (assets/css/site.css). Visual overrides only. */

:root {
  --ink-950: #050B17;
  --ink-900: #08122A;
  --ink-800: #0D1C3B;
  --sky-500: #0EA5E9;
  --sky-400: #38BDF8;
  --sky-300: #7DD3FC;
  --brand-violet: #7D8FF0;
  --on-dark: #EAF2FF;
  --on-dark-muted: #9AACCB;
  --line-dark: rgba(148, 182, 255, 0.14);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --glow: 0 0 0 1px rgba(56, 189, 248, 0.35), 0 10px 40px -8px rgba(14, 165, 233, 0.55);
}

/* Desktop backdrop = site hero */
body {
  background:
    radial-gradient(50% 60% at 70% 30%, rgba(14, 165, 233, 0.22) 0%, transparent 70%),
    radial-gradient(40% 50% at 15% 90%, rgba(125, 143, 240, 0.16) 0%, transparent 70%),
    var(--ink-950);
}
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(148, 182, 255, 0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(148, 182, 255, 0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(60% 60% at 50% 50%, #000 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(60% 60% at 50% 50%, #000 20%, transparent 80%);
}
@media (min-width: 560px) {
  #appFrame { border-color: rgba(148, 182, 255, 0.2); box-shadow: 0 0 0 1px rgba(148, 182, 255, 0.08), 0 50px 100px -30px rgba(0, 0, 0, 0.8), 0 0 80px -20px rgba(14, 165, 233, 0.35); }
}
.site-back {
  position: fixed; top: 20px; left: 24px; z-index: 5;
  display: none; align-items: center; gap: 10px;
  color: var(--on-dark); font-weight: 700; font-size: 14px; text-decoration: none;
  padding: 8px 14px 8px 8px; border-radius: 999px; border: 1px solid var(--line-dark);
  background: rgba(255, 255, 255, 0.03); backdrop-filter: blur(8px);
  transition: border-color 200ms, transform 280ms var(--ease-out);
}
.site-back:hover { border-color: rgba(125, 211, 252, 0.6); transform: translateX(-2px); }
.site-back img { width: 28px; height: 28px; border-radius: 8px; background: #fff; padding: 2px; }
@media (min-width: 900px) { .site-back { display: inline-flex; } }

/* ---------- Auth ---------- */
.auth-screen { background: var(--ink-950); }
.auth-screen::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(148, 182, 255, 0.07) 1px, transparent 1px), linear-gradient(90deg, rgba(148, 182, 255, 0.07) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(70% 50% at 50% 30%, #000 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(70% 50% at 50% 30%, #000 20%, transparent 80%);
}
.auth-glow { background: radial-gradient(70% 45% at 50% 0%, rgba(14, 165, 233, 0.35), transparent 70%), radial-gradient(50% 40% at 50% 110%, rgba(125, 143, 240, 0.25), transparent 70%); }
.auth-banner { background: var(--ink-900); border-bottom: 1px solid var(--line-dark); box-shadow: none; }
.auth-banner-track span { color: var(--on-dark); }
.coin-rain .drop { opacity: 0.55; }

.auth-card {
  max-width: 360px; padding: 26px 22px 22px; border-radius: 24px;
  background: #fff; box-shadow: 0 30px 60px -24px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.06);
  animation: authIn 700ms var(--ease-out) both;
}
@keyframes authIn { from { opacity: 0; transform: translateY(18px) scale(0.98); } }
.auth-brand { margin-bottom: 22px; }
.brand-mark { width: 40px; height: 40px; border-radius: 12px; background: #fff; box-shadow: 0 0 0 1px rgba(14, 22, 44, 0.08), 0 8px 20px -8px rgba(14, 165, 233, 0.6); }
.brand-name { font-weight: 800; font-size: 21px; letter-spacing: -0.02em; }

.toggle-row { background: var(--bg); border-radius: 999px; padding: 5px; }
.toggle-row button { border-radius: 999px; transition: background-color 280ms var(--ease-out), color 200ms, box-shadow 280ms var(--ease-out); }
.toggle-row button.active { background: linear-gradient(135deg, var(--sky-500), var(--sky-400)); box-shadow: 0 8px 20px -10px rgba(14, 165, 233, 0.9); }

.auth-label { font-size: 13px; font-weight: 700; color: var(--fg); }
.auth-input, .search-input {
  background: var(--bg); border-color: transparent; border-radius: 14px; min-height: 48px;
  transition: border-color 180ms, background-color 180ms, box-shadow 280ms var(--ease-out);
}
.auth-input:hover, .search-input:hover { border-color: rgba(14, 22, 44, 0.16); }
.auth-input:focus, .search-input:focus { outline: none; background: #fff; border-color: var(--sky-500); box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.15); }
.auth-foot a { color: var(--gold); }

/* ---------- Buttons ---------- */
.confirm-btn {
  position: relative; overflow: hidden; border-radius: 999px; min-height: 50px;
  background: linear-gradient(135deg, var(--sky-500), var(--sky-400));
  box-shadow: 0 8px 24px -10px rgba(14, 165, 233, 0.8);
  transition: box-shadow 280ms var(--ease-out), transform 280ms var(--ease-out);
}
.confirm-btn::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.35) 50%, transparent 70%);
  transform: translateX(-120%); transition: transform 700ms var(--ease-out);
}
@media (hover: hover) {
  .confirm-btn:hover { box-shadow: var(--glow); transform: translateY(-1px); }
  .confirm-btn:hover::after { transform: translateX(120%); }
}
.confirm-btn:disabled { opacity: 0.7; }
.copy-btn, .logout-btn { border-radius: 999px; }

/* ---------- Home ---------- */
.bal-card {
  position: relative; overflow: hidden; isolation: isolate;
  background: var(--ink-900); border-color: var(--line-dark); border-radius: 22px; color: var(--on-dark);
  box-shadow: 0 24px 48px -24px rgba(5, 11, 23, 0.7);
}
.bal-card::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(70% 90% at 100% 0%, rgba(14, 165, 233, 0.45), transparent 60%), radial-gradient(60% 80% at 0% 100%, rgba(125, 143, 240, 0.28), transparent 60%);
}
.bal-card::after {
  content: ""; position: absolute; right: -30px; bottom: -40px; width: 160px; height: 160px; z-index: -1;
  border-radius: 50%; border: 1px solid rgba(125, 211, 252, 0.15); box-shadow: 0 0 0 24px rgba(125, 211, 252, 0.04), 0 0 0 48px rgba(125, 211, 252, 0.03);
}
.bal-label { color: var(--on-dark-muted); }
.bal-amt { background: linear-gradient(100deg, #fff 0%, var(--sky-300) 60%, var(--sky-400) 100%); -webkit-background-clip: text; background-clip: text; }
.bal-sub { color: #5EEAD4; }

.qa, .coin, .service-card, .trade-row, .op-chip, .hist-row, .wallet-row {
  transition: transform 120ms ease, border-color 200ms, box-shadow 280ms var(--ease-out);
}
@media (hover: hover) {
  .qa:hover, .coin:hover, .service-card:hover, .trade-row:hover, .op-chip:hover { border-color: rgba(14, 165, 233, 0.45); box-shadow: 0 10px 24px -14px rgba(14, 165, 233, 0.55); }
}
.qa-ico { background: rgba(14, 165, 233, 0.12); color: var(--sky-500); }
.ticker-shell { background: var(--ink-900); border-color: var(--line-dark); }
.tick { color: var(--on-dark-muted); }
.tick .sym { color: #fff; }
.tick .up { color: #34D399; }
.tick .down { color: #F87171; }

.accent-bar { background: linear-gradient(var(--sky-500), var(--brand-violet)); }
.chip.active, .op-chip.active { border-color: var(--sky-500); }
.amt-field:focus-within { border-color: var(--sky-500); box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.12); }
.slider { background: linear-gradient(90deg, var(--sky-500), var(--brand-violet)); }

/* ---------- Tab bar ---------- */
.tabbar { background: rgba(255, 255, 255, 0.92); backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px); }
.tab-btn { transition: color 200ms; }
.tab-btn.active { color: var(--sky-500); }
.tab-btn[data-tab="trade"] { overflow: visible; }
.tab-ico { font-size: 17px; height: 22px; display: grid; place-items: center; }
.menu-ico { color: var(--sky-500); background: rgba(14, 165, 233, 0.1); }
.tab-trade { box-shadow: 0 0 0 5px var(--bg), 0 10px 24px -6px rgba(14, 165, 233, 0.7); }

.profile-avatar, .topbar .avatar { background: linear-gradient(135deg, var(--sky-500), var(--brand-violet)); color: #fff; }
.vcard { background: var(--ink-900); }
.vcard::before { content: ""; position: absolute; inset: 0; background: radial-gradient(70% 90% at 100% 0%, rgba(14, 165, 233, 0.4), transparent 60%); pointer-events: none; }
.vcard > * { position: relative; }

.toast { background: var(--ink-900); color: #fff; border-color: var(--line-dark); border-radius: 14px; box-shadow: 0 20px 40px -16px rgba(0, 0, 0, 0.5); font-weight: 600; }

.subpanel { transition: transform 420ms var(--ease-out); }

@media (prefers-reduced-motion: reduce) {
  .auth-card { animation: none; }
  .confirm-btn::after { display: none; }
}