:root {
  --bg: #070a10;
  --bg-soft: #0b1018;
  --panel: #0e141d;
  --panel-2: #121a25;
  --border: #1d2735;
  --border-soft: #161f2b;
  --text: #e7edf6;
  --muted: #8d9bb0;
  --accent: #5b8cff;
  --accent-2: #34d6c4;
  --ok: #43d17a;
  --warn: #ffc857;
  --danger: #ff6b6b;
  --radius: 14px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1100px 600px at 12% -10%, rgba(91, 140, 255, 0.16), transparent 60%),
    radial-gradient(800px 500px at 95% 0%, rgba(52, 214, 196, 0.1), transparent 55%),
    var(--bg);
  color: var(--text);
  font: 15px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body { display: flex; flex-direction: column; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: #8aa9ff; }

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.01em; margin: 0 0 0.6rem; }
h1 { font-size: clamp(2rem, 4vw, 3.1rem); font-weight: 680; }
h2 { font-size: 1.15rem; }
h3 { font-size: 0.95rem; }
p { margin: 0 0 0.8rem; }
hr { border: 0; border-top: 1px solid var(--border-soft); margin: 1rem 0; }

.muted { color: var(--muted); }
.small { font-size: 0.82rem; }
.mini { font-size: 0.72rem; }
.error-text { color: var(--danger); }
code, .mono { font-family: var(--mono); }

/* ---------------------------------------------------------------- chrome */

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid var(--border-soft);
  background: rgba(7, 10, 16, 0.82);
  backdrop-filter: blur(12px);
}

.brand {
  font-weight: 750;
  letter-spacing: 0.14em;
  font-size: 0.9rem;
  color: var(--text);
}
.brand span { color: var(--accent-2); }

.nav { display: flex; align-items: center; gap: 0.55rem; flex-wrap: wrap; }
.nav-link { color: var(--muted); padding: 0.35rem 0.5rem; border-radius: 8px; font-size: 0.9rem; }
.nav-link:hover { color: var(--text); background: var(--panel-2); }

.chip {
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 0.28rem 0.55rem;
  border-radius: 999px;
  max-width: 18ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.view {
  flex: 1;
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: clamp(1.4rem, 4vw, 3rem) clamp(1rem, 4vw, 3rem) 4rem;
}

.foot {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem clamp(1rem, 4vw, 3rem);
  border-top: 1px solid var(--border-soft);
  color: var(--muted);
  font-size: 0.8rem;
}
.foot-links { display: flex; gap: 1rem; }

/* ---------------------------------------------------------------- buttons */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid transparent;
  background: linear-gradient(135deg, var(--accent), #7b6cff);
  color: #fff;
  font: inherit;
  font-weight: 600;
  padding: 0.55rem 1rem;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.12s ease, filter 0.15s ease;
}
.btn:hover { filter: brightness(1.08); color: #fff; }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; }
.btn.ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn.ghost:hover { background: var(--panel-2); }
.btn.sm { padding: 0.38rem 0.7rem; font-size: 0.82rem; }
.btn.lg { padding: 0.8rem 1.3rem; font-size: 0.98rem; }
.btn.danger { color: var(--danger); }

/* ---------------------------------------------------------------- hero */

.hero { padding: 1rem 0 2rem; max-width: 62rem; }
.eyebrow {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.7rem;
  color: var(--accent-2);
  margin-bottom: 0.8rem;
}
.grad { background: linear-gradient(100deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { color: var(--muted); font-size: 1.05rem; max-width: 46rem; }
.cta-row { display: flex; gap: 0.7rem; flex-wrap: wrap; margin: 1.3rem 0 1.6rem; }

.hero-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0.7rem; }
.stat {
  border: 1px solid var(--border-soft);
  background: linear-gradient(180deg, var(--panel), var(--bg-soft));
  border-radius: 12px;
  padding: 0.85rem 0.95rem;
  font-size: 0.88rem;
}

.panel {
  border: 1px solid var(--border-soft);
  background: var(--panel);
  border-radius: var(--radius);
  padding: clamp(1rem, 2.4vw, 1.6rem);
  margin-bottom: 1.1rem;
}

/* ---------------------------------------------------------------- models */

.models { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 0.7rem; margin-top: 1rem; }
.model-card { border: 1px solid var(--border); border-radius: 12px; padding: 0.85rem; background: var(--panel-2); }
.model-card.off { opacity: 0.62; }
.model-head { display: flex; justify-content: space-between; align-items: baseline; gap: 0.5rem; margin-bottom: 0.35rem; }
.model-card p { font-size: 0.84rem; margin: 0 0 0.5rem; }
.model-foot { font-family: var(--mono); font-size: 0.7rem; color: var(--muted); }

.dot { font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.08em; padding: 0.12rem 0.4rem; border-radius: 999px; }
.dot.on { color: #0a1b12; background: var(--ok); }
.dot.off { color: var(--muted); border: 1px solid var(--border); }

/* ---------------------------------------------------------------- features */

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 0.8rem; margin-top: 0.9rem; }
.feature { border-left: 2px solid var(--accent); padding: 0.2rem 0 0.2rem 0.85rem; }
.feature p { font-size: 0.86rem; margin: 0; }

/* ---------------------------------------------------------------- pricing */

.pricing { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 0.9rem; }
.plan { border: 1px solid var(--border); border-radius: 12px; padding: 1.1rem; background: var(--panel-2); }
.plan.highlight { border-color: rgba(91, 140, 255, 0.55); box-shadow: 0 0 0 1px rgba(91, 140, 255, 0.18), 0 18px 40px -30px rgba(91, 140, 255, 0.9); }
.price { font-size: 1.7rem; font-weight: 700; margin: 0.2rem 0 0.6rem; }
.price .muted { font-size: 0.8rem; font-weight: 400; }
.plan ul { margin: 0 0 0.9rem; padding-left: 1.1rem; color: var(--muted); font-size: 0.87rem; }
.plan li { margin-bottom: 0.25rem; }

/* ---------------------------------------------------------------- forms */

.center { display: grid; place-items: center; padding: 2rem 0; }
.card {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: var(--radius);
  padding: 1.4rem;
}
.auth-card { width: min(420px, 100%); display: grid; gap: 0.75rem; }
.auth-card h2 { margin-bottom: 0; }
label { display: grid; gap: 0.3rem; font-size: 0.82rem; color: var(--muted); }
input, textarea {
  font: inherit;
  color: var(--text);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.6rem 0.7rem;
  width: 100%;
  resize: vertical;
}
input:focus, textarea:focus { outline: 2px solid rgba(91, 140, 255, 0.45); outline-offset: 1px; border-color: transparent; }

/* ---------------------------------------------------------------- console */

.console { display: grid; grid-template-columns: minmax(0, 1fr) 270px; gap: 1rem; align-items: start; }
@media (max-width: 900px) { .console { grid-template-columns: minmax(0, 1fr); } }

.chat-pane { display: grid; gap: 0.8rem; min-width: 0; }

.transcript {
  border: 1px solid var(--border-soft);
  background: var(--panel);
  border-radius: var(--radius);
  padding: 1rem;
  min-height: 320px;
  max-height: 56vh;
  overflow-y: auto;
  display: grid;
  gap: 0.7rem;
  align-content: start;
}

.msg { border-radius: 12px; padding: 0.65rem 0.8rem; max-width: 88%; }
.msg.user { justify-self: end; background: rgba(91, 140, 255, 0.14); border: 1px solid rgba(91, 140, 255, 0.3); }
.msg.assistant { justify-self: start; background: var(--panel-2); border: 1px solid var(--border); }
.msg-meta { font-family: var(--mono); font-size: 0.68rem; color: var(--muted); margin-bottom: 0.25rem; text-transform: uppercase; letter-spacing: 0.08em; }
.msg-body { white-space: pre-wrap; word-wrap: break-word; overflow-wrap: anywhere; }
.msg-foot { margin-top: 0.45rem; font-family: var(--mono); font-size: 0.68rem; color: var(--muted); border-top: 1px dashed var(--border); padding-top: 0.35rem; }

.empty-state { color: var(--muted); padding: 2rem 0.5rem; text-align: center; }
.empty-state h3 { color: var(--text); }

.composer { border: 1px solid var(--border); background: var(--panel); border-radius: var(--radius); padding: 0.8rem; display: grid; gap: 0.6rem; }
.composer-head { display: flex; justify-content: space-between; gap: 0.6rem; flex-wrap: wrap; }
.composer-tools { display: flex; align-items: center; gap: 0.5rem; }
.composer-foot { display: flex; justify-content: space-between; align-items: center; gap: 0.6rem; flex-wrap: wrap; }

.chips { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.chip-btn {
  font: inherit;
  font-size: 0.8rem;
  color: var(--muted);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.7rem;
  cursor: pointer;
  display: inline-flex;
  gap: 0.3rem;
  align-items: center;
}
.chip-btn:hover { color: var(--text); }
.chip-btn.active { color: #fff; border-color: rgba(91, 140, 255, 0.7); background: rgba(91, 140, 255, 0.18); }
.chip-btn.disabled { opacity: 0.55; }
.chip-btn .mini { color: var(--warn); font-family: var(--mono); }

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font: inherit;
  font-size: 0.82rem;
  color: var(--muted);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.7rem 0.3rem 0.35rem;
  cursor: pointer;
}
.toggle .knob { width: 26px; height: 15px; border-radius: 999px; background: var(--border); position: relative; transition: background 0.15s ease; }
.toggle .knob::after { content: ""; position: absolute; top: 2px; left: 2px; width: 11px; height: 11px; border-radius: 50%; background: var(--muted); transition: transform 0.15s ease, background 0.15s ease; }
.toggle.on { color: var(--text); border-color: rgba(52, 214, 196, 0.5); }
.toggle.on .knob { background: rgba(52, 214, 196, 0.35); }
.toggle.on .knob::after { transform: translateX(11px); background: var(--accent-2); }

.sidebar { border: 1px solid var(--border-soft); background: var(--panel); border-radius: var(--radius); padding: 1rem; display: grid; gap: 0.2rem; align-content: start; }
.sidebar h3 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 0.3rem; }
.plan-line { font-size: 1.1rem; margin: 0; }

.compare-out:empty { display: none; }
.compare-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0.7rem; }
.compare-col { border: 1px solid var(--border); background: var(--panel-2); border-radius: 12px; padding: 0.75rem; min-width: 0; }
.compare-col.failed { border-color: rgba(255, 107, 107, 0.4); }
.compare-col header { display: flex; justify-content: space-between; gap: 0.5rem; align-items: baseline; margin-bottom: 0.5rem; border-bottom: 1px solid var(--border-soft); padding-bottom: 0.4rem; }
.compare-body { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 0.88rem; max-height: 40vh; overflow-y: auto; }

/* ---------------------------------------------------------------- tables */

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 0.7rem; margin-bottom: 1.1rem; }
.stat-card { display: grid; gap: 0.2rem; }
.stat-card strong { font-size: 1.25rem; }

.page-title { font-size: 1.6rem; margin-bottom: 1rem; }

.table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.table th, .table td { text-align: left; padding: 0.45rem 0.6rem; border-bottom: 1px solid var(--border-soft); }
.table th { color: var(--muted); font-weight: 600; font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.06em; }
.table tr:last-child td { border-bottom: 0; }
.table td:first-child { font-family: var(--mono); font-size: 0.8rem; }

/* ------------------------------------------------------------ documents */

.auth-wrap { display: grid; gap: 1rem; justify-items: center; }
.oauth-box { display: grid; gap: 0.5rem; justify-items: center; width: min(420px, 100%); }
.oauth-box p { margin: 0; }
.oauth-btn { width: 100%; justify-content: center; }

.doc-grid { display: grid; grid-template-columns: minmax(0, 320px) minmax(0, 1fr); gap: 1rem; margin-bottom: 1rem; align-items: start; }
@media (max-width: 860px) { .doc-grid { grid-template-columns: minmax(0, 1fr); } }
.doc-form { display: grid; gap: 0.7rem; }
.doc-list { display: grid; gap: 0.5rem; margin-top: 0.4rem; }
.doc-row { display: flex; justify-content: space-between; gap: 0.8rem; align-items: center; border-bottom: 1px solid var(--border-soft); padding: 0.5rem 0; }
.doc-row:last-child { border-bottom: 0; }
.doc-row strong { font-size: 0.9rem; }

.ask-panel textarea { margin: 0.4rem 0 0.6rem; }
.row-end { display: flex; justify-content: flex-end; }
.answer { white-space: pre-wrap; overflow-wrap: anywhere; border-left: 2px solid var(--accent); padding-left: 0.8rem; margin: 0.8rem 0; }
.citations { margin: 0.8rem 0 0.4rem; padding-left: 1.4rem; display: grid; gap: 0.45rem; }
.citations li { font-size: 0.86rem; }
.citations strong { font-family: var(--mono); font-size: 0.8rem; }

/* ---------------------------------------------------------------- toast */

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.4rem;
  transform: translate(-50%, 140%);
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.65rem 1rem;
  border-radius: 10px;
  font-size: 0.86rem;
  max-width: min(90vw, 520px);
  box-shadow: 0 18px 40px -18px rgba(0, 0, 0, 0.9);
  transition: transform 0.2s ease;
  z-index: 60;
}
.toast.show { transform: translate(-50%, 0); }
.toast[data-kind="error"] { border-color: rgba(255, 107, 107, 0.5); }
.toast[data-kind="ok"] { border-color: rgba(67, 209, 122, 0.5); }

/* status badges on the usage page */
.badges { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.badge { border-radius: 999px; padding: 4px 10px; font-size: 12px; border: 1px solid currentColor; opacity: .9; }
.badge.ok { color: #22c55e; background: rgba(34, 197, 94, .12); }
.badge.bad { color: #ef4444; background: rgba(239, 68, 68, .12); }