/* nostr-chat — design tokens (pattern per ../cars/docs/design-spine.md's
   :root-variable shape; own palette, not cars' Workshop-Web materials).
   A terminal/ship's-console read to match MU-TH-UR (PLAN.md §10): fixed
   theme, no dark-mode toggle. */

:root {
  --bg: #0b0f0c;
  --panel: #10160f;
  --line: #1e2b1f;
  --fg: #d8ffe0;
  --fg-dim: #7fa887;
  --accent: #39ff6a;
  --accent-dim: #1e7a3a;
  --warn: #ffb020;
  --danger: #ff5f5f;

  --border: 1px solid var(--line);
  --radius: 2px;
  --unit: 8px;
  --shadow-block: 0 0 0 1px var(--line);
  --font-body: 'IBM Plex Mono', ui-monospace, 'Courier New', monospace;
  --snap: 120ms linear;

  /* Pico v2 overrides — declared on :root and body per house convention. */
  --pico-background-color: var(--bg);
  --pico-color: var(--fg);
  --pico-primary: var(--accent);
  --pico-primary-hover: var(--accent);
  --pico-border-radius: var(--radius);
  --pico-font-family: var(--font-body);
  --pico-form-element-background-color: var(--panel);
  --pico-form-element-border-color: var(--line);
}

body {
  background: var(--bg);
  color: var(--fg);
  --pico-background-color: var(--bg);
  --pico-color: var(--fg);
}

[x-cloak] {
  display: none !important;
}

* {
  scrollbar-width: thin;
}

/* ---------------------------------------------------------------------- */
/* Shell */
/* ---------------------------------------------------------------------- */

.chat-shell {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr;
  height: 100dvh;
  height: 100vh;
  max-width: 720px;
  margin: 0 auto;
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

.topbar {
  display: flex;
  align-items: center;
  gap: var(--unit);
  padding: var(--unit) calc(var(--unit) * 1.5);
  border-bottom: var(--border);
  padding-top: calc(var(--unit) + env(safe-area-inset-top));
}

.topbar h1 {
  font-size: 1rem;
  letter-spacing: 0.04em;
  margin: 0;
  flex: 1;
  text-transform: uppercase;
}

.conn-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--fg-dim);
  flex: none;
}
.conn-dot[data-state='ready'] { background: var(--accent); box-shadow: 0 0 6px var(--accent); }
.conn-dot[data-state='connecting'],
.conn-dot[data-state='authing'],
.conn-dot[data-state='reconnecting'] { background: var(--warn); }
.conn-dot[data-state='restricted'],
.conn-dot[data-state='offline'] { background: var(--danger); }

/* ---------------------------------------------------------------------- */
/* View switcher (mobile: one pane at a time; wide screens: side by side) */
/* ---------------------------------------------------------------------- */

.views {
  display: grid;
  grid-template-columns: 1fr;
  min-height: 0;
}

@media (min-width: 720px) {
  .views {
    grid-template-columns: 240px 1fr;
  }
  .assistant-pane { display: block !important; }
}

.assistant-pane,
.conversation-pane {
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.assistant-pane { border-right: var(--border); }

/* Mobile: conversation view hides the list; back button returns to it. */
.chat-shell[data-view='list'] .conversation-pane { display: none; }
.chat-shell[data-view='conversation'] .assistant-pane { display: none; }

/* ---------------------------------------------------------------------- */
/* Assistant list */
/* ---------------------------------------------------------------------- */

.assistant-list {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-y: auto;
}

.assistant-row {
  display: flex;
  align-items: center;
  gap: var(--unit);
  padding: var(--unit) calc(var(--unit) * 1.5);
  border-bottom: var(--border);
  cursor: pointer;
}
.assistant-row:hover { background: var(--panel); }
.assistant-row[aria-current='true'] { background: var(--panel); border-left: 3px solid var(--accent); }
.assistant-row[data-unavailable='true'] { opacity: 0.5; cursor: not-allowed; }

.assistant-row .label { flex: 1; font-weight: 600; }
.assistant-row .reason { font-size: 0.75rem; color: var(--fg-dim); }

/* ---------------------------------------------------------------------- */
/* Conversation */
/* ---------------------------------------------------------------------- */

.conversation-head {
  display: flex;
  align-items: center;
  gap: var(--unit);
  padding: var(--unit) calc(var(--unit) * 1.5);
  border-bottom: var(--border);
}
.conversation-head a { text-decoration: none; }

.message-log {
  flex: 1;
  overflow-y: auto;
  padding: calc(var(--unit) * 1.5);
  display: flex;
  flex-direction: column;
  gap: var(--unit);
}

.msg-row {
  display: flex;
  max-width: 85%;
}
.msg-row.from-me { align-self: flex-end; justify-content: flex-end; }
.msg-row.from-them { align-self: flex-start; }
.msg-row.from-unknown { align-self: flex-start; opacity: 0.75; }

.bubble {
  border: var(--border);
  border-radius: var(--radius);
  padding: calc(var(--unit) * 0.75) var(--unit);
  white-space: pre-wrap;
  word-break: break-word;
}
.from-me .bubble { background: var(--accent-dim); border-color: var(--accent); }
.from-them .bubble { background: var(--panel); }
.from-unknown .bubble { background: var(--panel); border-style: dashed; }

.bubble .meta {
  display: block;
  margin-top: calc(var(--unit) * 0.5);
  font-size: 0.7rem;
  color: var(--fg-dim);
}

.status-chip {
  align-self: flex-start;
  border: var(--border);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 0.8rem;
  color: var(--fg-dim);
}

.late-badge {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  border: var(--border);
  border-radius: 999px;
  font-size: 0.65rem;
  color: var(--warn);
}

.empty-state {
  margin: auto;
  text-align: center;
  color: var(--fg-dim);
  padding: calc(var(--unit) * 2);
}

.offline-banner {
  padding: calc(var(--unit) * 0.5) var(--unit);
  text-align: center;
  font-size: 0.8rem;
  background: var(--panel);
  border-bottom: var(--border);
  color: var(--warn);
}

/* ---------------------------------------------------------------------- */
/* Composer */
/* ---------------------------------------------------------------------- */

.composer {
  display: flex;
  gap: var(--unit);
  padding: var(--unit) calc(var(--unit) * 1.5);
  border-top: var(--border);
  padding-bottom: calc(var(--unit) + env(safe-area-inset-bottom));
}
.composer textarea {
  flex: 1;
  resize: none;
  min-height: 2.5rem;
  max-height: 8rem;
  margin: 0;
}
.composer .composer-reason {
  font-size: 0.75rem;
  color: var(--fg-dim);
  padding: 0 calc(var(--unit) * 1.5);
}

/* ---------------------------------------------------------------------- */
/* Identity / recovery dialogs */
/* ---------------------------------------------------------------------- */

dialog article { max-width: 480px; }
.nsec-box {
  font-family: var(--font-body);
  word-break: break-all;
  background: var(--panel);
  border: var(--border);
  border-radius: var(--radius);
  padding: var(--unit);
  font-size: 0.85rem;
}
.qr-wrap { display: flex; justify-content: center; padding: var(--unit) 0; }
.qr-wrap img, .qr-wrap svg { max-width: 220px; height: auto; }

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--unit) calc(var(--unit) * 1.5);
}