/* ────────────────────────────────────────────────────────────
   Morpheus-WASM — Predictive keyboard mode
   A phone-style dark chat UI with suggestion chips + virtual keyboard.
   ──────────────────────────────────────────────────────────── */

:root {
  --kb-bg: #d1d3da;
  --kb-key: #ffffff;
  --kb-key-active: #d0d0d8;
  --kb-mod: #a5a9b5;
  --kb-text: #000000;
  --kb-text-muted: #6b6b7b;
  --chat-bg: #0e1621;
  --input-bg: #17212b;
  --input-text: #ffffff;
  --accent: #5288c1;
  --accent-glow: rgba(82, 136, 193, 0.25);
  --chip-bg: #ffffff;
  --chip-text: #000000;
  --chip-divider: #b8bbc4;
  --radius: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  height: 100%; overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
  display: flex; flex-direction: column;
  background: var(--chat-bg);
  -webkit-font-smoothing: antialiased;
  touch-action: manipulation;
}

/* ── Loading overlay ── */
.loading-overlay {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  background: var(--chat-bg); padding: 20px;
}
.loading-overlay.hidden { display: none; }
.loading-card {
  max-width: 420px; width: 100%; text-align: center;
  background: var(--input-bg); border-radius: 16px; padding: 32px 24px;
  color: var(--input-text);
}
.loading-card .icon-wrap {
  width: 48px; height: 48px; margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
}
.loading-card .icon-wrap svg { width: 36px; height: 36px; }
.loading-card .icon-wrap.spin svg { animation: spin 1s linear infinite; }
.loading-card .icon-wrap.error { color: #ef4444; }
.loading-card h2 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; }
.loading-card .status-text { font-size: 0.85rem; color: var(--kb-text-muted); margin-bottom: 16px; line-height: 1.5; }
.loading-card .status-text code { background: rgba(255,255,255,0.1); padding: 1px 5px; border-radius: 4px; font-size: 0.8rem; }

.progress-wrap { margin-bottom: 16px; }
.progress-bar { height: 6px; background: rgba(255,255,255,0.1); border-radius: 3px; overflow: hidden; }
.progress-bar .fill { height: 100%; background: var(--accent); border-radius: 3px; transition: width 0.3s; width: 0%; }
.progress-meta { display: flex; justify-content: space-between; margin-top: 6px; font-size: 0.75rem; color: var(--kb-text-muted); }

.badges { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.badge {
  font-size: 0.72rem; padding: 3px 10px; border-radius: 20px;
  background: rgba(255,255,255,0.08); color: var(--kb-text-muted);
  display: inline-flex; align-items: center; gap: 5px;
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--kb-text-muted); }
.badge.ok { color: #4ade80; } .badge.ok .dot { background: #4ade80; }
.badge.warn { color: #fbbf24; } .badge.warn .dot { background: #fbbf24; }

.banner { display: none; margin-top: 14px; padding: 10px 14px; border-radius: 8px; font-size: 0.82rem; line-height: 1.5; }
.banner.show { display: block; }
.banner.warn { background: rgba(251, 191, 36, 0.12); color: #fbbf24; }
.banner.error { background: rgba(239, 68, 68, 0.12); color: #ef4444; }
.banner code { background: rgba(255,255,255,0.1); padding: 1px 5px; border-radius: 4px; font-size: 0.78rem; }

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Header ── */
.header {
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px; padding-top: max(10px, env(safe-area-inset-top));
  background: #17212b; color: #fff;
  border-bottom: 1px solid #0e1621;
}
.header .title { font-size: 1rem; font-weight: 600; }
.header .header-right { display: flex; align-items: center; gap: 14px; }
.header .metric { font-size: 0.72rem; color: var(--kb-text-muted); }
.header .link { font-size: 0.75rem; color: var(--accent); text-decoration: none; }
.header .link:hover { text-decoration: underline; }

.status-dot {
  width: 6px; height: 6px; border-radius: 50%; display: inline-block;
  margin-right: 4px;
}
.status-dot.online { background: #4ade80; }
.status-dot.offline { background: #ef4444; }

/* ── Chat area ── */
.chat-area {
  flex: 1; overflow-y: auto; padding: 16px;
  display: flex; flex-direction: column; gap: 8px;
}
.chat-bubble {
  align-self: flex-end; max-width: 70%;
  background: #2b5276; color: #fff;
  padding: 8px 12px; border-radius: 12px 12px 4px 12px;
  font-size: 0.95rem; line-height: 1.4; word-break: break-word;
  animation: bubble-in 0.2s ease;
}
@keyframes bubble-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ── Input bar ── */
.input-bar {
  flex-shrink: 0;
  display: flex; align-items: flex-end; gap: 8px;
  padding: 8px 12px; padding-bottom: max(8px, env(safe-area-inset-bottom));
  background: var(--input-bg);
}
.input-bar .input-wrapper {
  flex: 1; display: flex; align-items: center; gap: 8px;
  background: var(--chat-bg); border-radius: 20px;
  padding: 8px 14px; min-height: 40px;
}
.input-bar textarea {
  flex: 1; border: none; outline: none; background: transparent;
  color: var(--input-text); font-size: 1rem; line-height: 1.4;
  resize: none; max-height: 120px; min-height: 24px;
  font-family: inherit; caret-color: var(--accent);
}
.input-bar textarea::selection { background: rgba(82, 136, 193, 0.4); }
.input-bar textarea::placeholder { color: #6b7280; }
.input-bar .send-btn {
  flex-shrink: 0; width: 44px; height: 44px; border-radius: 50%;
  background: var(--accent); border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: #fff; transition: opacity 0.15s;
}
.input-bar .send-btn:disabled { opacity: 0.4; }
.input-bar .send-btn svg { width: 20px; height: 20px; }

/* ── Suggestion bar ── */
.suggestion-bar {
  flex-shrink: 0;
  display: flex; align-items: center;
  background: var(--kb-bg);
  border-bottom: 1px solid #b0b3bb;
  min-height: 40px; overflow: hidden;
}
.suggestion-bar .chip {
  flex: 1; padding: 8px 4px; text-align: center;
  font-size: 0.95rem; color: var(--chip-text);
  cursor: pointer; user-select: none;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  border-right: 1px solid var(--chip-divider);
  transition: background 0.1s;
}
.suggestion-bar .chip:last-child { border-right: none; }
.suggestion-bar .chip:active { background: var(--kb-key-active); }
.suggestion-bar .chip.placeholder { color: var(--kb-text-muted); font-style: italic; font-size: 0.85rem; }
.suggestion-bar .chip.chip-primary { color: var(--accent); font-weight: 600; }

/* ── Virtual keyboard ── */
.keyboard {
  flex-shrink: 0;
  background: var(--kb-bg);
  padding: 6px 4px; padding-bottom: max(6px, env(safe-area-inset-bottom));
  display: flex; flex-direction: column; gap: 8px;
}
.kb-row { display: flex; gap: 6px; justify-content: center; }
.kb-key {
  flex: 1; min-width: 0; height: 42px; border-radius: 6px;
  background: var(--kb-key); color: var(--kb-text);
  font-size: 1.05rem; font-weight: 400;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; user-select: none;
  border: none; transition: background 0.05s; position: relative;
}
.kb-key:active { background: var(--kb-key-active); }
.kb-key.mod { background: var(--kb-mod); }
.kb-key.mod:active { background: #9a9eaa; }
.kb-key.wide { flex: 4; }
.kb-key.extra-wide { flex: 6; }
.kb-key.narrow { flex: 0.8; }
.kb-key .alt-chars {
  position: absolute; top: 3px; right: 5px;
  font-size: 0.6rem; color: var(--kb-text-muted); pointer-events: none;
}
.kb-key.shift-active { background: #fff; color: var(--accent); box-shadow: 0 0 0 2px var(--accent) inset; }

/* ── Alt-char popup ── */
.alt-popup {
  position: fixed; background: #333; border-radius: 8px; padding: 4px;
  display: flex; gap: 2px; z-index: 1000; box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.alt-popup .alt-item {
  padding: 8px 12px; font-size: 1.1rem; color: #fff; cursor: pointer;
  border-radius: 6px; min-width: 36px; text-align: center;
}
.alt-popup .alt-item:hover { background: rgba(255,255,255,0.15); }