:root {
  color-scheme: dark;
  --bg: #050505;
  --gold: #d4af37;
  --muted: #8a8a8a;
  --card: #101010;
  --line: #2a2a2a;
  --text: #f3f3f3;
  --danger: #ff6b6b;
  font-family: "Rajdhani", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body,
#root {
  min-height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

body {
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom)
    env(safe-area-inset-left);
}

.shell {
  max-width: 520px;
  margin: 0 auto;
  min-height: 100dvh;
  padding: 28px 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero {
  text-align: center;
}

.mark {
  width: 72px;
  height: 72px;
  object-fit: contain;
}

h1 {
  margin: 12px 0 4px;
  letter-spacing: 0.18em;
  font-size: 28px;
}

.credit,
.hint {
  color: var(--muted);
  font-size: 13px;
}

.card,
.composer,
.chat-bar {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 18px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

input,
textarea {
  background: #050505;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  padding: 12px;
  font-size: 16px;
}

textarea {
  min-height: 88px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  resize: vertical;
}

button {
  background: var(--gold);
  color: #111;
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

button:disabled {
  opacity: 0.6;
}

button.ghost {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--gold);
  padding: 8px 12px;
  font-size: 12px;
}

.error {
  color: var(--danger);
  margin: 0;
}

code {
  color: var(--gold);
}

.shell.chat {
  padding: 12px;
  gap: 12px;
}

.chat-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
}

.transcript {
  flex: 1;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bubble {
  max-width: 88%;
  padding: 10px 12px;
  border-radius: 14px;
  white-space: pre-wrap;
  line-height: 1.4;
}

.bubble.user {
  align-self: flex-end;
  background: #1b1b1b;
  border: 1px solid var(--gold);
}

.bubble.assistant {
  align-self: flex-start;
  background: #121212;
  border: 1px solid var(--line);
}

.bubble.status {
  align-self: center;
  color: var(--muted);
  font-size: 12px;
  background: transparent;
  border: 0;
}

.composer {
  display: flex;
  gap: 8px;
  padding: 8px;
}

.composer input {
  flex: 1;
}