/* ============================================================
   Workspace Chat Pane — Claude.ai-inspired welcome screen
   ============================================================ */

.ws-chat-pane {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  background: var(--bg-primary, #0d1117);
}

/* ── Welcome screen ────────────────────────────────────────── */
.chat-welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  gap: 32px;
  padding: 48px 24px;
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
}

/* ── Hero: glowing logo + tagline ───────────────────────────── */
.chat-welcome-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.chat-welcome-logo-glow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(56, 139, 253, 0.15) 0%,
    transparent 70%
  );
  box-shadow: 0 0 60px 20px rgba(56, 139, 253, 0.08);
  animation: chat-logo-pulse 4s ease-in-out infinite;
}

@keyframes chat-logo-pulse {
  0%,
  100% {
    box-shadow: 0 0 60px 20px rgba(56, 139, 253, 0.08);
  }
  50% {
    box-shadow: 0 0 80px 30px rgba(56, 139, 253, 0.15);
  }
}

.chat-welcome-logo {
  width: 96px;
  height: 96px;
  transition: transform 300ms ease;
}

/* Spin the logo when AI is thinking */
.chat-welcome-logo-glow.loading .chat-welcome-logo {
  animation: logo-spin 2s linear infinite;
}

@keyframes logo-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.chat-welcome-tagline {
  font-size: 16px;
  color: var(--text-muted, #8b949e);
  margin: 0;
  text-align: center;
  font-weight: 400;
}

/* ── Welcome input box ─────────────────────────────────────── */
.chat-welcome-input-area {
  width: 100%;
  max-width: 600px;
}

.chat-welcome-input-box {
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary, #161b22);
  border: 1px solid var(--border-default, #30363d);
  border-radius: 16px;
  padding: 16px;
  transition: border-color 200ms ease;
}

.chat-welcome-input-box:focus-within {
  border-color: var(--text-link, #58a6ff);
}

.chat-welcome-input {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary, #f0f6fc);
  font-size: 15px;
  line-height: 1.5;
  resize: none;
  font-family: inherit;
  min-height: 24px;
  max-height: 200px;
}

.chat-welcome-input::placeholder {
  color: var(--text-muted, #8b949e);
}

.chat-welcome-input-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

.chat-welcome-attach {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: none;
  border: 1px solid var(--border-default, #30363d);
  border-radius: 50%;
  color: var(--text-muted, #8b949e);
  cursor: pointer;
  font-size: 14px;
}

.chat-welcome-attach:hover {
  color: var(--text-primary, #f0f6fc);
  border-color: var(--text-secondary, #c9d1d9);
}

.chat-welcome-model {
  margin-left: auto;
  font-size: 13px;
  color: var(--text-muted, #8b949e);
}

/* Welcome input action buttons (camera, sketch, mic) */
.chat-welcome-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  color: var(--text-muted, #8b949e);
  cursor: pointer;
  font-size: 16px;
  border-radius: 8px;
}

.chat-welcome-btn:hover {
  color: var(--text-primary, #f0f6fc);
  background: rgba(177, 186, 196, 0.08);
}

/* ── Quick action shortcuts ────────────────────────────────── */
.chat-welcome-shortcuts {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.chat-shortcut-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: none;
  border: 1px solid var(--border-default, #30363d);
  border-radius: 20px;
  color: var(--text-secondary, #c9d1d9);
  font-size: 13px;
  cursor: pointer;
  transition: all 150ms ease;
  white-space: nowrap;
}

.chat-shortcut-btn:hover {
  background: var(--bg-secondary, #161b22);
  border-color: var(--text-secondary, #c9d1d9);
  color: var(--text-primary, #f0f6fc);
}

.chat-shortcut-btn i {
  font-size: 14px;
}

/* ── Hidden state ──────────────────────────────────────────── */
.chat-messages-area.hidden,
.chat-input-area.hidden {
  display: none;
}

/* ── Chat messages (active conversation) ───────────────────── */
.chat-messages-area {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
}

/* ── Chat input (active conversation) ──────────────────────── */
.chat-input-area {
  padding: 16px 24px 24px;
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
}

.chat-input-box {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  background: var(--bg-secondary, #161b22);
  border: 1px solid var(--border-default, #30363d);
  border-radius: 16px;
  padding: 12px 16px;
}

.chat-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary, #f0f6fc);
  font-size: 15px;
  line-height: 1.5;
  resize: none;
  font-family: inherit;
  min-height: 24px;
  max-height: 200px;
}

.chat-input::placeholder {
  color: var(--text-muted, #8b949e);
}

.chat-input-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.chat-attach-btn,
.chat-send-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  color: var(--text-muted, #8b949e);
  cursor: pointer;
  border-radius: 8px;
}

.chat-attach-btn:hover,
.chat-send-btn:hover {
  color: var(--text-primary, #f0f6fc);
  background: rgba(177, 186, 196, 0.08);
}

.chat-send-btn {
  background: var(--text-link, #58a6ff);
  color: #fff;
  border-radius: 50%;
}

.chat-send-btn:hover {
  background: #4a9af5;
  color: #fff;
}