:root {
  --bg: #0e0e11;
  --surface: #17171c;
  --surface-2: #202027;
  --text: #f2f2f4;
  --text-dim: #9a9aa2;
  --accent: #ff7a45;
  --accent-2: #4f8cff;
  --border: #2b2b33;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
}

.hidden { display: none !important; }

.screen {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: env(safe-area-inset-top) 20px env(safe-area-inset-bottom);
}

.login-card, .device-card {
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 24px;
  text-align: center;
}

.login-card h1 {
  font-size: 28px;
  margin: 0 0 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.subtitle { color: var(--text-dim); margin: 0 0 24px; font-size: 14px; }

#google-signin-button { display: flex; justify-content: center; margin-top: 8px; }

.error { color: #ff6b6b; font-size: 13px; margin-top: 16px; }

.device-card h2 { margin: 0 0 4px; font-size: 22px; }

.device-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 20px 0;
}

.device-option {
  background: var(--surface-2);
  border: 1.5px solid var(--border);
  border-radius: 14px;
  padding: 16px 10px;
  text-align: center;
  cursor: pointer;
  color: var(--text);
  font-size: 14px;
  transition: border-color 0.15s, transform 0.1s;
}

.device-option:active { transform: scale(0.97); }

.device-option.selected {
  border-color: var(--accent);
  background: #2a1f1a;
}

.device-option .icon { font-size: 26px; display: block; margin-bottom: 6px; }

.context-label {
  display: block;
  text-align: left;
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

#extra-context {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-size: 15px;
  margin-bottom: 20px;
}

.primary-btn {
  width: 100%;
  padding: 14px;
  border-radius: 14px;
  border: none;
  background: var(--accent);
  color: #1a1a1a;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
}

.primary-btn:disabled { opacity: 0.4; }

.link-btn {
  width: 100%;
  margin-top: 14px;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: none;
  color: var(--text-dim);
  font-size: 13px;
  cursor: pointer;
}

.saved-list {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.saved-empty {
  color: var(--text-dim);
  font-size: 14px;
  text-align: center;
  margin-top: 40px;
  padding: 0 12px;
}

.saved-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  cursor: pointer;
}

.saved-item .icon { font-size: 22px; line-height: 1; }

.saved-item-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.saved-item-body strong { font-size: 14px; }

.saved-item-date { font-size: 11px; color: var(--text-dim); }

.saved-item-preview {
  font-size: 13px;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#saved-screen, #saved-view-screen {
  display: flex;
  flex-direction: column;
  padding: 0;
  align-items: stretch;
  height: 100dvh;
}

.chat-header {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(env(safe-area-inset-top) + 12px) 16px 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  z-index: 5;
}

.chat-header strong { font-size: 15px; display: block; }

.context-pill {
  font-size: 11px;
  color: var(--text-dim);
  display: block;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
  max-width: 180px;
}

.header-actions button {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 10px;
  padding: 6px 9px;
  font-size: 11.5px;
}

#chat-screen {
  display: flex;
  flex-direction: column;
  padding: 0;
  align-items: stretch;
  height: 100dvh;
}

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.msg {
  max-width: 85%;
  padding: 12px 14px;
  border-radius: 16px;
  font-size: 15px;
  line-height: 1.4;
  white-space: pre-wrap;
}

.msg.user {
  align-self: flex-end;
  background: var(--accent-2);
  color: #0e0e11;
  border-bottom-right-radius: 4px;
}

.msg.assistant {
  align-self: flex-start;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}

.msg.pending { opacity: 0.6; }

.chat-form {
  display: flex;
  gap: 8px;
  padding: 12px 16px calc(env(safe-area-inset-bottom) + 12px);
  border-top: 1px solid var(--border);
  background: var(--surface);
}

#chat-input {
  flex: 1;
  padding: 12px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-size: 15px;
}

.send-btn {
  padding: 0 18px;
  border-radius: 20px;
  border: none;
  background: var(--accent);
  color: #1a1a1a;
  font-weight: 600;
}