:root {
  color-scheme: dark;
  --bg: #0b1018;
  --panel: #111827;
  --panel-soft: #172033;
  --text: #eef4ff;
  --muted: #9fb0c8;
  --line: #263247;
  --accent: #25d0a5;
  --accent-2: #f5b84b;
  --danger: #ff7a7a;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

button,
input,
select,
textarea {
  font: inherit;
}

.shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: end;
  padding: 28px 0 22px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.83rem;
  font-weight: 700;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 12px;
  font-size: clamp(2.2rem, 7vw, 5rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 6px;
  font-size: 1.05rem;
}

.lede {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(92px, 1fr));
  gap: 10px;
}

.stats div,
.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.stats div {
  padding: 14px;
}

.stats span {
  display: block;
  font-weight: 800;
  color: var(--accent-2);
}

.stats small {
  color: var(--muted);
}

.panel {
  padding: 18px;
}

.notice {
  margin-bottom: 18px;
  background: var(--panel-soft);
}

.notice p,
.settings p,
.links p,
.panel-head p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.6;
}

#modelStatus[data-kind="ok"] {
  color: var(--accent);
}

#modelStatus[data-kind="error"] {
  color: var(--danger);
}

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 18px;
  align-items: start;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
  margin-bottom: 14px;
}

.messages {
  min-height: 320px;
  max-height: 520px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0d1422;
}

.message {
  max-width: min(720px, 92%);
  padding: 12px 14px;
  border-radius: 8px;
  line-height: 1.55;
  white-space: pre-wrap;
}

.message.user {
  align-self: flex-end;
  background: #173b43;
}

.message.assistant {
  align-self: flex-start;
  background: #1a2436;
}

.message.error {
  align-self: flex-start;
  color: #ffe1e1;
  background: #4b1f2a;
}

.composer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  margin-top: 12px;
}

textarea,
input,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0d1422;
  color: var(--text);
  padding: 11px 12px;
  outline: none;
}

textarea:focus,
input:focus,
select:focus {
  border-color: var(--accent);
}

button,
.link-row a {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #192338;
  color: var(--text);
  padding: 10px 14px;
  text-decoration: none;
  cursor: pointer;
}

button:hover,
.link-row a:hover {
  border-color: var(--accent);
}

button:disabled {
  cursor: wait;
  opacity: 0.6;
}

.examples,
.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.settings {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.9rem;
}

.setting-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.links {
  margin-top: 18px;
}

@media (max-width: 860px) {
  .hero,
  .grid {
    grid-template-columns: 1fr;
  }

  .stats {
    grid-template-columns: 1fr 1fr;
  }

  .composer {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .shell {
    width: min(100% - 20px, 1120px);
    padding-top: 18px;
  }

  .stats,
  .setting-row {
    grid-template-columns: 1fr;
  }
}