/* HAL9000 portal —— 共享设计令牌与组件（4SEE 科技控制台风格） */
:root {
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;
  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;

  --bg: #0a0d16; --bg-2: #0e1220; --panel: #121728; --panel-2: #161c30;
  --line: #222a42; --line-2: #2c3552;
  --ink: #e8ebf5; --ink-2: #aab2ca; --ink-3: #6b7492;
  --brand: #3b82f6; --brand-2: #60a5fa;
  --brand-soft: rgba(59,130,246,0.12); --brand-line: rgba(59,130,246,0.35);
  --hal: #e5484d; --ok: #34d399; --warn: #f5b642; --bad: #f87171;
  --shadow: 0 24px 60px rgba(0,0,0,0.45);
  --radius: 14px;
}
:root[data-theme="light"] {
  --bg: #fafbfd; --bg-2: #f2f5fb; --panel: #ffffff; --panel-2: #f6f8fd;
  --line: #e5e9f2; --line-2: #d5dbe9;
  --ink: #0d1220; --ink-2: #3d465e; --ink-3: #79839e;
  --brand: #1d4ed8; --brand-2: #1e40af;
  --brand-soft: rgba(29,78,216,0.08); --brand-line: rgba(29,78,216,0.28);
  --hal: #dc2626; --ok: #16a34a; --warn: #d97706; --bad: #dc2626;
  --shadow: 0 20px 50px rgba(20,30,60,0.10);
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #fafbfd; --bg-2: #f2f5fb; --panel: #ffffff; --panel-2: #f6f8fd;
    --line: #e5e9f2; --line-2: #d5dbe9; --ink: #0d1220; --ink-2: #3d465e;
    --ink-3: #79839e; --brand: #1d4ed8; --brand-2: #1e40af;
    --brand-soft: rgba(29,78,216,0.08); --brand-line: rgba(29,78,216,0.28);
    --hal: #dc2626; --ok: #16a34a; --warn: #d97706; --bad: #dc2626;
    --shadow: 0 20px 50px rgba(20,30,60,0.10);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--sans); font-size: 16px; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(circle at 18% -10%, rgba(59,130,246,0.10), transparent 42%),
    radial-gradient(circle, var(--line) 1px, transparent 1px);
  background-size: auto, 26px 26px;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 28px; }
.eyebrow { font-family: var(--mono); font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink-3); font-weight: 500; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* 顶部扫描光束 */
.beam { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 60;
  background: linear-gradient(90deg, transparent, var(--brand) 20%, var(--brand-2) 50%, var(--brand) 80%, transparent); opacity: 0.9; }
.beam::after { content: ""; position: absolute; top: 0; left: -30%; width: 30%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.9), transparent);
  animation: sweep 5.5s cubic-bezier(0.4,0,0.2,1) infinite; }
@keyframes sweep { 0% { left: -30%; } 60%,100% { left: 130%; } }
@media (prefers-reduced-motion: reduce) { .beam::after { animation: none; } }

/* logo */
.logo { width: 30px; height: 30px; border-radius: 8px; flex-shrink: 0;
  background: linear-gradient(150deg, var(--brand), var(--brand-2));
  display: grid; place-items: center; position: relative;
  box-shadow: 0 0 0 1px var(--brand-line), 0 6px 18px rgba(59,130,246,0.35); }
.logo::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--hal); box-shadow: 0 0 10px var(--hal); }
.brand { display: flex; align-items: center; gap: 11px; }
.brand b { font-weight: 700; font-size: 15px; letter-spacing: -0.01em; }
.brand span { font-family: var(--mono); font-size: 10px; color: var(--ink-3); letter-spacing: 0.14em; }

/* nav */
nav { position: sticky; top: 0; z-index: 50; backdrop-filter: saturate(160%) blur(14px);
  background: color-mix(in oklab, var(--bg) 78%, transparent); border-bottom: 1px solid var(--line); }
.nav-in { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.nav-links { display: flex; align-items: center; gap: 18px; }
.nav-links a { font-size: 13.5px; color: var(--ink-2); transition: color 0.15s; }
.nav-links a:hover { color: var(--ink); }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; border-radius: 10px;
  padding: 10px 18px; font-size: 14px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; transition: transform 0.12s, box-shadow 0.15s, background 0.15s, border-color 0.15s;
  white-space: nowrap; font-family: var(--sans); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: linear-gradient(140deg, var(--brand), var(--brand-2)); color: #fff;
  box-shadow: 0 8px 22px rgba(59,130,246,0.32); }
.btn-primary:hover { box-shadow: 0 10px 28px rgba(59,130,246,0.45); }
.btn-ghost { background: var(--panel); border-color: var(--line-2); color: var(--ink); }
.btn-ghost:hover { border-color: var(--brand-line); }
.btn-sm { padding: 6px 12px; font-size: 12.5px; border-radius: 8px; }
.btn-danger { background: transparent; border-color: color-mix(in oklab, var(--bad) 45%, var(--line)); color: var(--bad); }
.btn-danger:hover { background: color-mix(in oklab, var(--bad) 12%, transparent); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.theme-toggle { width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--line-2);
  background: var(--panel); color: var(--ink-2); cursor: pointer; font-size: 16px; display: grid; place-items: center; }
.theme-toggle:hover { color: var(--ink); border-color: var(--brand-line); }

/* panels / cards */
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.badge { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 12px;
  color: var(--ink-2); background: var(--panel); border: 1px solid var(--line-2); border-radius: 999px; padding: 6px 14px; }
.live { width: 7px; height: 7px; border-radius: 50%; background: var(--hal); box-shadow: 0 0 8px var(--hal); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }
@media (prefers-reduced-motion: reduce) { .live { animation: none; } }

.chip { display: inline-flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: 11.5px;
  padding: 3px 9px; border-radius: 6px; border: 1px solid var(--line-2); color: var(--ink-2); background: var(--panel-2); }
.chip.ok { color: var(--ok); border-color: color-mix(in oklab, var(--ok) 40%, var(--line)); }
.chip.warn { color: var(--warn); border-color: color-mix(in oklab, var(--warn) 40%, var(--line)); }
.chip.bad { color: var(--bad); border-color: color-mix(in oklab, var(--bad) 40%, var(--line)); }

/* forms */
label.field { display: block; margin-bottom: 16px; }
label.field > span { display: block; font-size: 13px; color: var(--ink-2); margin-bottom: 7px; }
input, select { width: 100%; padding: 11px 13px; font-size: 14.5px; font-family: var(--sans);
  background: var(--panel-2); border: 1px solid var(--line-2); border-radius: 10px; color: var(--ink); outline: none; transition: border-color 0.15s; }
input:focus, select:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft); }
input::placeholder { color: var(--ink-3); }

/* terminal block */
.term { background: #0b0e18; border: 1px solid var(--line-2); border-radius: 12px; overflow: hidden; }
:root[data-theme="light"] .term { background: #0f1626; }
.term-bar { display: flex; align-items: center; gap: 7px; padding: 10px 14px; border-bottom: 1px solid rgba(255,255,255,0.06); }
.term .dot { width: 11px; height: 11px; border-radius: 50%; }
.term-title { font-family: var(--mono); font-size: 11.5px; color: #6b7492; margin-left: 8px; }
.term-body { padding: 16px 18px; font-family: var(--mono); font-size: 12.8px; line-height: 1.85; color: #cfd6ea; overflow-x: auto; white-space: pre-wrap; word-break: break-all; }
.term-body .u { color: #60a5fa; } .term-body .p { color: #e8ebf5; } .term-body .c { color: #6b7492; } .term-body .g { color: #34d399; }

/* table */
table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
table.tbl th { text-align: left; font-weight: 600; color: var(--ink-3); font-size: 12px; text-transform: uppercase;
  letter-spacing: 0.06em; padding: 10px 12px; border-bottom: 1px solid var(--line); }
table.tbl td { padding: 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.tbl tr:last-child td { border-bottom: none; }

/* toast / alert */
.alert { padding: 11px 14px; border-radius: 10px; font-size: 13.5px; margin-bottom: 16px; }
.alert.err { background: color-mix(in oklab, var(--bad) 12%, transparent); border: 1px solid color-mix(in oklab, var(--bad) 40%, var(--line)); color: var(--bad); }
.alert.ok { background: color-mix(in oklab, var(--ok) 12%, transparent); border: 1px solid color-mix(in oklab, var(--ok) 40%, var(--line)); color: var(--ok); }

.muted { color: var(--ink-3); }
h1,h2,h3,h4 { line-height: 1.2; }