/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0d1117;
  --surface: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --primary: #7c3aed;
  --primary-hover: #6d28d9;
  --danger: #f85149;
  --danger-hover: #da3633;
  --success: #3fb950;
  --radius: 8px;
  --toolbar-height: 44px;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px; /* Prevents iOS zoom on input focus */
  overflow: hidden;
  -webkit-text-size-adjust: 100%;
}

/* Views */
.view {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.view[hidden] {
  display: none !important;
}

/* Login */
.login-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  gap: 32px;
}

.login-logo {
  text-align: center;
}

.login-logo h1 {
  font-size: 24px;
  margin-top: 12px;
  font-weight: 600;
}

.login-logo .subtitle {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 4px;
}

#login-form {
  width: 100%;
  max-width: 320px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

#login-form input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 16px;
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
}

#login-form input:focus {
  border-color: var(--primary);
}

#login-form button {
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius);
  padding: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

#login-form button:hover {
  background: var(--primary-hover);
}

#login-form button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.error {
  color: var(--danger);
  font-size: 14px;
  text-align: center;
}

/* Dashboard */
.dashboard-header, .terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  min-height: 48px;
  flex-shrink: 0;
}

.dashboard-header h2 {
  font-size: 18px;
  font-weight: 600;
}

.header-actions {
  display: flex;
  gap: 8px;
}

.icon-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 6px;
  width: 36px;
  height: 36px;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.icon-btn:hover {
  color: var(--text);
  border-color: var(--text-muted);
}

.session-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.session-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  cursor: pointer;
  transition: border-color 0.2s;
}

.session-item:hover, .session-item:active {
  border-color: var(--primary);
}

.session-name {
  font-weight: 500;
  font-size: 15px;
}

.session-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.session-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.session-delete {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--danger);
  border-radius: 6px;
  width: 32px;
  height: 32px;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.session-delete:hover {
  background: var(--danger);
  color: white;
  border-color: var(--danger);
}

.session-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  flex-shrink: 0;
}

.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state p {
  font-size: 14px;
  margin-top: 8px;
}

.create-session {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.create-session input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  font-size: 16px;
  color: var(--text);
  outline: none;
}

.create-session input:focus {
  border-color: var(--primary);
}

.create-session button {
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.create-session button:hover {
  background: var(--primary-hover);
}

/* Terminal */
.terminal-header {
  gap: 12px;
}

#session-title {
  flex: 1;
  font-weight: 500;
  font-size: 15px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#terminal-container {
  flex: 1;
  overflow: hidden;
  background: #000;
}

#terminal-container .xterm {
  height: 100%;
  padding: 4px;
}

/* Mobile input field */
.mobile-terminal-input {
  width: 100%;
  height: 36px;
  background: #161b22;
  color: #e6edf3;
  border: none;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 4px 12px;
  font-size: 16px; /* Prevents iOS zoom */
  font-family: 'Menlo', 'DejaVu Sans Mono', 'Consolas', monospace;
  outline: none;
  flex-shrink: 0;
  caret-color: #e6edf3;
}

.mobile-terminal-input::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
  font-style: italic;
  font-size: 14px;
}

/* Toolbar */
#toolbar {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 4px 4px;
  gap: 4px;
  flex-shrink: 0;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

#toolbar::-webkit-scrollbar {
  display: none;
}

.toolbar-btn {
  min-width: 44px;
  height: var(--toolbar-height);
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  font-family: monospace;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  white-space: nowrap;
  flex-shrink: 0;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  transition: all 0.15s;
}

.toolbar-btn:active {
  background: var(--primary);
  border-color: var(--primary);
  transform: scale(0.95);
}

.toolbar-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.toolbar-separator {
  width: 1px;
  height: 28px;
  background: var(--border);
  flex-shrink: 0;
  align-self: center;
}

/* Connection status */
.connection-status {
  font-size: 11px;
  padding: 4px 8px;
  text-align: center;
  flex-shrink: 0;
}

.connection-status.connected {
  background: #0d1f0d;
  color: var(--success);
}

.connection-status.disconnected {
  background: #2d0d0d;
  color: var(--danger);
}

.connection-status.connecting {
  background: #1f1f0d;
  color: #d29922;
}

/* Safe area for notch/home indicator */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  #toolbar {
    padding-bottom: calc(4px + env(safe-area-inset-bottom));
  }
  .create-session {
    padding-bottom: calc(12px + env(safe-area-inset-bottom));
  }
  .login-container {
    padding-bottom: env(safe-area-inset-bottom);
  }
}

@supports (padding-top: env(safe-area-inset-top)) {
  .dashboard-header, .terminal-header {
    padding-top: calc(12px + env(safe-area-inset-top));
  }
}