/* Polyra — black, white, blue. Glass over a dark field.
   One accent hue; everything else is weight and spacing. */

:root {
  --bg: #07080c;
  --bg-2: #0b0d14;
  --ink: #f2f5fa;
  --ink-2: #a8b2c4;
  --ink-3: #6f7a8d;
  --line: rgba(255, 255, 255, 0.09);
  --line-2: rgba(255, 255, 255, 0.16);
  --glass: rgba(255, 255, 255, 0.045);
  --glass-2: rgba(255, 255, 255, 0.07);
  --blue: #3b82f6;
  --blue-2: #60a5fa;
  --blue-dim: rgba(59, 130, 246, 0.14);
  --good: #34d399;
  --warn: #fbbf24;
  --bad: #f87171;
  --r: 14px;
  --rail: 232px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background:
    radial-gradient(900px 600px at 12% -10%, rgba(59,130,246,0.16), transparent 60%),
    radial-gradient(700px 500px at 100% 0%, rgba(59,130,246,0.08), transparent 55%),
    var(--bg);
  color: var(--ink);
  font: 15px/1.55 ui-sans-serif, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
[hidden] { display: none !important; }

.glass {
  background: var(--glass);
  border: 1px solid var(--line);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
}

/* ---------- mark ---------- */
.mark {
  width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(145deg, var(--blue), #1d4ed8);
  box-shadow: 0 6px 20px rgba(59,130,246,0.38);
}
.mark span { width: 13px; height: 13px; border-radius: 4px; background: #fff; display: block; }
.mark.small { width: 30px; height: 30px; border-radius: 9px; }
.mark.small span { width: 10px; height: 10px; border-radius: 3px; }

/* ---------- sign in ---------- */
.gate { min-height: 100%; display: grid; place-items: center; padding: 24px; }
.gate-card { width: min(400px, 100%); border-radius: 20px; padding: 32px; text-align: center; }
.gate-card .mark { margin: 0 auto 16px; }
.gate-card h1 { margin: 0 0 6px; font-size: 25px; letter-spacing: -0.02em; }
.gate-sub { margin: 0 0 22px; color: var(--ink-2); font-size: 14px; }
.gate-card label { display: block; text-align: left; font-size: 12px; color: var(--ink-2); margin-bottom: 6px; }
.gate-note { margin: 14px 0 0; font-size: 11.5px; color: var(--ink-3); line-height: 1.5; }

input, textarea, select {
  width: 100%; padding: 11px 13px; border-radius: 10px;
  background: rgba(0,0,0,0.28); border: 1px solid var(--line-2); color: var(--ink);
  font: inherit; font-size: 14px;
}
input:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-dim);
}
button { font: inherit; cursor: pointer; }
.primary {
  width: 100%; margin-top: 14px; padding: 11px 16px; border: 0; border-radius: 10px;
  background: var(--blue); color: #fff; font-weight: 600;
}
/* .primary is full-width because it was written for the login form. Inside a
   row it has to size to its own text like every other control there. */
.primary.inline { width: auto; margin-top: 0; padding: 8px 14px; font-size: 13px; }
.primary:hover { background: var(--blue-2); }
.primary:disabled { opacity: 0.5; cursor: default; }
.ghost {
  background: transparent; border: 1px solid var(--line-2); color: var(--ink-2);
  padding: 7px 12px; border-radius: 9px; font-size: 13px;
}
.ghost:hover { color: var(--ink); border-color: var(--blue); }
.ghost.icon { padding: 7px; line-height: 0; }
.danger { border-color: rgba(248,113,113,0.4); color: var(--bad); }

/* ---------- shell ---------- */
#app { display: grid; grid-template-columns: var(--rail) 1fr; grid-template-rows: auto 1fr; min-height: 100%; }
.rail {
  grid-row: 1 / 3; border-right: 1px solid var(--line); border-top: 0; border-left: 0; border-bottom: 0;
  display: flex; flex-direction: column; padding: 16px 12px; gap: 18px; position: sticky; top: 0; height: 100vh;
}
.rail-head { display: flex; align-items: center; gap: 10px; padding: 4px 6px 0; font-size: 15px; letter-spacing: -0.01em; }
#nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
#nav button {
  display: flex; align-items: center; gap: 10px; width: 100%; text-align: left;
  padding: 9px 11px; border: 0; border-radius: 10px; background: transparent;
  color: var(--ink-2); font-size: 14px;
}
#nav button:hover { background: var(--glass-2); color: var(--ink); }
#nav button.active { background: var(--blue-dim); color: var(--blue-2); font-weight: 600; }
#nav i { width: 16px; height: 16px; display: inline-block; opacity: 0.85; }
.rail-foot { border-top: 1px solid var(--line); padding-top: 12px; display: flex; flex-direction: column; gap: 10px; }
.who { display: flex; align-items: center; gap: 8px; font-size: 13px; padding: 0 4px; }
.tier {
  font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.06em;
  padding: 2px 7px; border-radius: 999px; background: var(--blue-dim); color: var(--blue-2);
}

.topbar {
  grid-column: 2; display: flex; align-items: center; gap: 14px; padding: 14px 24px;
  border: 0; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5;
}
.topbar h2 { margin: 0; font-size: 17px; font-weight: 600; letter-spacing: -0.01em; flex: 1; }
.env-pill {
  font-size: 11px; padding: 4px 10px; border-radius: 999px;
  border: 1px solid rgba(251,191,36,0.3); color: var(--warn); white-space: nowrap;
}
#menu { display: none; }

main { grid-column: 2; padding: 24px; max-width: 1180px; width: 100%; }
.loading { color: var(--ink-3); padding: 40px 0; }

/* ---------- blocks ---------- */
.cards { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.card { border-radius: var(--r); padding: 16px 17px; background: var(--glass); border: 1px solid var(--line); }
.card h3 { margin: 0 0 4px; font-size: 15px; font-weight: 600; }
.card p { margin: 0; color: var(--ink-2); font-size: 13px; }
.stat { font-size: 28px; font-weight: 650; letter-spacing: -0.02em; margin: 2px 0 2px; }
.stat-label { font-size: 12px; color: var(--ink-3); text-transform: uppercase; letter-spacing: 0.06em; }

.section { margin-bottom: 26px; }
.section-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 12px; }
.section-head h3 { margin: 0; font-size: 13px; text-transform: uppercase; letter-spacing: 0.07em; color: var(--ink-3); }
.section-head .sub { color: var(--ink-3); font-size: 12.5px; }

.row {
  /* wrap, because a full-width note (the simulation warning) is a flex child
     here; without wrapping it squeezes its siblings until the title breaks one
     word per line and the buttons overlap the text. */
  display: flex; align-items: center; flex-wrap: wrap; gap: 12px; padding: 13px 15px;
  border: 1px solid var(--line); border-radius: var(--r); background: var(--glass); margin-bottom: 9px;
}
.row > .warn-box, .row > .steps { flex: 0 0 100%; }
.row .grow { flex: 1 1 260px; min-width: 0; }
.row .title { font-weight: 600; font-size: 14.5px; }
.row .meta { color: var(--ink-3); font-size: 12.5px; margin-top: 2px; }
.row .actions { display: flex; gap: 7px; flex-shrink: 0; }

.badge { font-size: 10.5px; font-weight: 700; padding: 3px 8px; border-radius: 999px; white-space: nowrap; }
.b-sim { background: rgba(251,191,36,0.14); color: var(--warn); border: 1px solid rgba(251,191,36,0.3); }
.b-ok { background: rgba(52,211,153,0.13); color: var(--good); }
.b-blue { background: var(--blue-dim); color: var(--blue-2); }
.b-bad { background: rgba(248,113,113,0.13); color: var(--bad); }
.b-dim { background: rgba(255,255,255,0.06); color: var(--ink-3); }

.empty { color: var(--ink-3); font-size: 13.5px; padding: 26px; text-align: center;
  border: 1px dashed var(--line-2); border-radius: var(--r); }

/* ---------- chat ---------- */
.chat { display: flex; flex-direction: column; height: calc(100vh - 118px); }
.stream { flex: 1; overflow-y: auto; padding: 4px 2px 14px; display: flex; flex-direction: column; gap: 12px; }
.msg { max-width: 76%; padding: 11px 14px; border-radius: 15px; font-size: 14.5px; white-space: pre-wrap; line-height: 1.5; }
.msg.me { align-self: flex-end; background: var(--blue); color: #fff; border-bottom-right-radius: 5px; }
.msg.bot { align-self: flex-start; background: var(--glass-2); border: 1px solid var(--line); border-bottom-left-radius: 5px; }
.msg .trace { margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--line); font-size: 11.5px; color: var(--ink-3); }
.chips { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 9px; }
.chip { font-size: 12.5px; padding: 5px 11px; border-radius: 999px; border: 1px solid var(--line-2);
  background: transparent; color: var(--ink-2); }
.chip:hover { border-color: var(--blue); color: var(--blue-2); }
.composer { display: flex; gap: 9px; padding-top: 12px; border-top: 1px solid var(--line); }
.composer input { flex: 1; }
.composer button { padding: 11px 18px; border: 0; border-radius: 10px; background: var(--blue); color: #fff; font-weight: 600; }
.suggest { color: var(--ink-3); font-size: 12.5px; margin: 0 0 10px; }

/* ---------- misc ---------- */
.steps { margin-top: 10px; border-top: 1px solid var(--line); padding-top: 10px; }
.step { display: flex; gap: 9px; font-size: 12.5px; color: var(--ink-2); padding: 4px 0; }
.step .n { color: var(--ink-3); min-width: 16px; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.warn-box {
  border: 1px solid rgba(251,191,36,0.3); background: rgba(251,191,36,0.07);
  color: var(--warn); border-radius: 10px; padding: 11px 13px; font-size: 12.5px; margin-top: 10px;
}
.grid-2 { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.kv { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px solid var(--line); font-size: 13.5px; }
.kv:last-child { border-bottom: 0; }
/* The timezone row carries a control, so it needs to align to it rather than
   to a bare value like the rows above it. */
/* Secondary text: the explanation under a heading, and the status line a
   control writes its result into. */
.muted { color: var(--ink-3); font-size: 12.5px; line-height: 1.5; margin: 6px 0 14px; }

.tz-set { display: inline-flex; align-items: center; gap: 10px; }
.tz-set button { padding: 3px 9px; font-size: 12px; }
.tz-set button:disabled { opacity: .4; cursor: default; }
.kv span:last-child { color: var(--ink-2); }
#backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 8; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  #app { grid-template-columns: 1fr; }
  .rail {
    position: fixed; left: 0; top: 0; bottom: 0; width: 250px; z-index: 9;
    transform: translateX(-100%); transition: transform 0.22s ease; height: 100dvh;
  }
  .rail.open { transform: none; }
  .topbar, main { grid-column: 1; }
  #menu { display: inline-flex; }
  .env-pill { display: none; }
  main { padding: 16px; }
  .msg { max-width: 88%; }
  .chat { height: calc(100dvh - 104px); }
  .row { flex-wrap: wrap; }
  .row .actions { width: 100%; }
}
@media (prefers-reduced-motion: reduce) { .rail { transition: none; } }

/* ---------- auth ---------- */
.tabs { display: flex; gap: 4px; padding: 3px; margin-bottom: 18px;
  background: rgba(0,0,0,0.26); border: 1px solid var(--line); border-radius: 11px; }
.tab { flex: 1; padding: 8px; border: 0; border-radius: 8px; background: transparent;
  color: var(--ink-3); font-size: 13.5px; font-weight: 600; }
.tab.active { background: var(--glass-2); color: var(--ink); }
.mt { margin-top: 12px; }
.auth-error { margin: 12px 0 0; padding: 9px 11px; border-radius: 9px; font-size: 12.5px;
  background: rgba(248,113,113,0.1); border: 1px solid rgba(248,113,113,0.3); color: var(--bad); text-align: left; }
.auth-note { margin: 12px 0 0; padding: 9px 11px; border-radius: 9px; font-size: 12.5px;
  background: rgba(52,211,153,0.1); border: 1px solid rgba(52,211,153,0.3); color: var(--good); text-align: left; }