:root {
  color-scheme: dark;
  --bg: #0b1118;
  --panel: #111a24;
  --panel-raised: #162331;
  --line: #263747;
  --text: #e9f0f5;
  --muted: #93a4b1;
  --blue: #66b8ff;
  --gold: #f2c879;
  --green: #65d5a5;
  --red: #ff7e87;
  --shadow: 0 22px 55px rgba(0, 0, 0, .22);
}

* { box-sizing: border-box; }
html { background: var(--bg); }
body { margin: 0; min-width: 320px; color: var(--text); background: radial-gradient(circle at 85% -10%, #163047 0, transparent 35%), var(--bg); font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif; line-height: 1.45; }
button, input { font: inherit; }
button { cursor: pointer; }
.shell { max-width: 1440px; margin: 0 auto; padding: 32px clamp(16px, 4vw, 56px) 48px; }
.topbar { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; margin-bottom: 28px; }
.eyebrow, .section-kicker, .metric-label { color: var(--blue); letter-spacing: .14em; font-size: 12px; font-weight: 800; }
h1, h2, p { margin: 0; }
h1 { margin-top: 6px; font-size: clamp(28px, 4vw, 48px); letter-spacing: -.04em; line-height: 1; }
h2 { margin-top: 5px; font-size: 20px; letter-spacing: -.02em; }
.brand-block p { color: var(--muted); margin-top: 12px; font-size: 15px; }
.status-cluster { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.status-pill, .version-chip, .safe-badge { border: 1px solid var(--line); background: rgba(17, 26, 36, .78); border-radius: 999px; padding: 9px 12px; font-size: 12px; color: var(--muted); }
.version-chip strong { color: var(--text); margin-left: 4px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); display: inline-block; margin-right: 7px; }
.dot.good { background: var(--green); box-shadow: 0 0 14px rgba(101,213,165,.65); }
.dot.bad { background: var(--red); }
.dot.muted { background: var(--gold); }
.panel { background: linear-gradient(145deg, rgba(22,35,49,.94), rgba(13,21,30,.94)); border: 1px solid var(--line); border-radius: 20px; padding: 22px; box-shadow: var(--shadow); }
.connection-panel { display: grid; grid-template-columns: .8fr 1.5fr; gap: 24px; align-items: center; margin-bottom: 16px; }
.connection-fields { display: grid; grid-template-columns: 1fr 1fr auto; align-items: end; gap: 12px; }
label { display: grid; gap: 7px; color: var(--muted); font-size: 13px; font-weight: 650; }
input[type="text"], input[type="url"], input[type="password"], input[type="number"] { width: 100%; color: var(--text); border: 1px solid #314656; background: #0c151e; border-radius: 10px; padding: 11px 12px; outline: none; transition: border-color .18s, box-shadow .18s; }
input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(102,184,255,.14); }
.connection-actions { display: flex; gap: 8px; }
.button { border: 1px solid transparent; border-radius: 10px; padding: 11px 15px; color: var(--text); font-weight: 800; white-space: nowrap; }
.button.primary { background: var(--blue); color: #07111a; }
.button.secondary { background: #1a2c3d; border-color: #35536a; }
.button.ghost { background: transparent; border-color: var(--line); }
.button:hover { filter: brightness(1.12); }
.muted-text { color: var(--muted); font-size: 13px; margin-top: 8px; }
.hero-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 16px; }
.hero-card { min-height: 118px; border: 1px solid var(--line); border-radius: 18px; padding: 20px; background: var(--panel); position: relative; overflow: hidden; }
.hero-card::after { content: ""; position: absolute; width: 110px; height: 110px; right: -35px; bottom: -45px; border-radius: 50%; background: currentColor; opacity: .08; }
.hero-card strong { display: block; margin-top: 18px; font-size: 22px; }
.hero-card small { display: block; color: var(--muted); margin-top: 4px; }
.accent-blue { color: var(--blue); } .accent-gold { color: var(--gold); } .accent-green { color: var(--green); }
.hero-card strong, .hero-card small { color: var(--text); }
.section-heading, .symbol-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 18px; }
.safe-badge { color: var(--green); border-color: rgba(101,213,165,.28); font-weight: 800; letter-spacing: .08em; }
.form-grid { display: grid; gap: 14px; }
.form-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.form-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.inline-warning { color: var(--gold); font-size: 12px; margin-top: 16px; }
.symbol-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 16px 0; }
.symbol-card { min-width: 0; }
.symbol-mark { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; font-weight: 900; font-size: 19px; }
.symbol-mark.btc { color: #0d1820; background: var(--gold); } .symbol-mark.xau { color: #1c170d; background: #eab96a; font-size: 15px; }
.toggle-row { display: flex; align-items: center; gap: 12px; padding-top: 23px; }
.toggle-label { display: flex; align-items: center; gap: 8px; color: var(--text); font-size: 13px; }
input[type="checkbox"] { accent-color: var(--green); width: 18px; height: 18px; }
details { margin-top: 22px; border-top: 1px solid var(--line); padding-top: 16px; }
summary { color: var(--blue); cursor: pointer; font-weight: 800; font-size: 13px; }
.scoring-fields { margin-top: 16px; }
.history-row { display: grid; grid-template-columns: 1fr auto; gap: 12px; }
footer { display: flex; justify-content: space-between; gap: 16px; color: #718391; font-size: 12px; padding: 22px 4px 0; }
.toast { position: fixed; left: 50%; bottom: 22px; transform: translate(-50%, 120px); background: #e9f0f5; color: #09131d; border-radius: 999px; padding: 12px 18px; font-weight: 800; box-shadow: var(--shadow); transition: transform .22s ease; z-index: 5; }
.toast.show { transform: translate(-50%, 0); }

@media (max-width: 1050px) {
  .connection-panel { grid-template-columns: 1fr; }
  .connection-fields { grid-template-columns: 1fr 1fr; }
  .connection-actions { grid-column: 1 / -1; }
  .form-grid.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 740px) {
  .shell { padding-top: 22px; }
  .topbar, footer { flex-direction: column; }
  .status-cluster { justify-content: flex-start; }
  .connection-fields, .form-grid.four, .form-grid.two, .symbol-grid, .history-row { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: 1fr; }
  .toggle-row { padding-top: 0; }
  .connection-actions .button { flex: 1; }
}