/* ============================================================
   AutoWP Design System - Flat Dark Theme
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+TC:wght@300;400;500;600;700&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Background Colors */
  --bg-primary: #0f0f1a;
  --bg-secondary: #13132b;
  --bg-tertiary: #1a1a2e;
  --bg-surface: rgba(255, 255, 255, 0.04);
  --bg-surface-hover: rgba(255, 255, 255, 0.07);
  --bg-surface-active: rgba(255, 255, 255, 0.10);
  --bg-glass: rgba(255, 255, 255, 0.05);
  --bg-glass-border: rgba(255, 255, 255, 0.08);

  /* Accent Colors */
  --accent-primary: #4f46e5;
  --accent-primary-hover: #6366f1;
  --accent-primary-glow: rgba(79, 70, 229, 0.35);
  --accent-secondary: #06b6d4;
  --accent-secondary-hover: #22d3ee;
  --accent-secondary-glow: rgba(6, 182, 212, 0.30);

  /* Status Colors */
  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.12);
  --color-warning: #f59e0b;
  --color-warning-bg: rgba(245, 158, 11, 0.12);
  --color-error: #ef4444;
  --color-error-bg: rgba(239, 68, 68, 0.12);
  --color-info: #3b82f6;
  --color-info-bg: rgba(59, 130, 246, 0.12);

  /* Text Colors */
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --text-inverse: #0f172a;
  --text-accent: #818cf8;

  /* Border */
  --border-default: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --border-focus: var(--accent-primary);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px var(--accent-primary-glow);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Typography */
  --font-sans: 'Inter', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.8125rem;
  --text-base: 0.9375rem;
  --text-lg: 1.125rem;
  --text-xl: 1.3125rem;
  --text-2xl: 1.625rem;
  --text-3xl: 2rem;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-Index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal-backdrop: 500;
  --z-modal: 600;
  --z-toast: 700;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  background: var(--bg-primary);
  /* Subtle grid texture */
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 48px 48px;
}

a {
  color: var(--accent-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-secondary-hover);
}

img {
  max-width: 100%;
  display: block;
}

::selection {
  background: var(--accent-primary);
  color: white;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.page {
  display: none;
  min-height: 100vh;
  animation: fadeIn 0.3s ease;
}

.page.active {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Glass Card --- */
.card {
  background: var(--bg-glass);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: var(--space-xl);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  border-color: var(--border-hover);
}

.card-header {
  margin-bottom: var(--space-lg);
}

.card-header h2 {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-primary);
}

.card-header p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: var(--space-xs);
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 600;
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }

.text-secondary { color: var(--text-secondary); }
.text-accent { color: var(--text-accent); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-error { color: var(--color-error); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 10px 20px;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.btn:active {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  background: var(--accent-primary);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-primary-hover);
  box-shadow: var(--shadow-glow);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--bg-surface-hover);
  border-color: var(--border-hover);
}

.btn-danger {
  background: var(--color-error);
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background: #dc2626;
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.35);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--bg-surface);
  color: var(--text-primary);
}

.btn-sm {
  padding: 6px 14px;
  font-size: var(--text-xs);
}

.btn-lg {
  padding: 14px 28px;
  font-size: var(--text-base);
  border-radius: var(--radius-md);
}

.btn-block {
  width: 100%;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-md);
}

/* --- Form Inputs --- */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background var(--transition-fast);
  outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-tertiary);
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: var(--border-hover);
  background: var(--bg-surface-hover);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-primary-glow);
  background: var(--bg-surface-hover);
}

.form-input.error,
.form-textarea.error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: var(--space-xs);
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-top: var(--space-xs);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.5;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  cursor: pointer;
}

.form-select option {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* Toggle Switch */
.toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
}

.toggle input {
  display: none;
}

.toggle-track {
  width: 40px;
  height: 22px;
  background: var(--bg-surface-active);
  border-radius: var(--radius-full);
  position: relative;
  transition: background var(--transition-fast);
}

.toggle input:checked + .toggle-track {
  background: var(--accent-primary);
}

.toggle-track::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  background: white;
  border-radius: 50%;
  transition: transform var(--transition-fast);
}

.toggle input:checked + .toggle-track::after {
  transform: translateX(18px);
}

.toggle-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

/* --- Login / Register Page --- */
.page-auth {
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(79, 70, 229, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(6, 182, 212, 0.06) 0%, transparent 50%),
    var(--bg-primary);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  padding: var(--space-2xl);
}

.auth-logo {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.auth-logo h1 {
  font-size: var(--text-2xl);
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-logo p {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-top: var(--space-xs);
}

.auth-footer {
  text-align: center;
  margin-top: var(--space-lg);
  font-size: var(--text-sm);
  color: var(--text-tertiary);
}

.auth-footer a {
  color: var(--accent-primary-hover);
  font-weight: 500;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin: var(--space-lg) 0;
  color: var(--text-tertiary);
  font-size: var(--text-xs);
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-default);
}

/* --- Header / Navbar --- */
.app-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(15, 15, 26, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-default);
  padding: 0 var(--space-lg);
}

.app-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-brand {
  font-size: var(--text-lg);
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.app-nav {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.app-nav-link {
  padding: 6px 14px;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
  cursor: pointer;
}

.app-nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-surface);
}

.app-nav-link.active {
  color: var(--text-primary);
  background: var(--bg-surface-active);
}

.user-menu {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: 600;
  color: white;
  cursor: pointer;
}

.user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 180px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-xs);
  display: none;
  z-index: var(--z-dropdown);
}

.user-dropdown.open {
  display: block;
  animation: slideDown 0.15s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.user-dropdown-item {
  display: block;
  width: 100%;
  padding: 8px 12px;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  font-family: var(--font-sans);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.user-dropdown-item:hover {
  background: var(--bg-surface);
  color: var(--text-primary);
}

.user-dropdown-divider {
  height: 1px;
  background: var(--border-default);
  margin: var(--space-xs) 0;
}

/* --- Dashboard Layout --- */
.page-dashboard {
  flex-direction: column;
  min-height: 100vh;
}

.dashboard-content {
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
  width: 100%;
}

/* --- Tabs --- */
.tabs {
  display: flex;
  gap: 2px;
  background: var(--bg-surface);
  padding: 3px;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-xl);
  overflow-x: auto;
}

.tab-btn {
  flex: 1;
  min-width: 0;
  padding: 10px 16px;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-tertiary);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    color var(--transition-fast),
    background var(--transition-fast);
  white-space: nowrap;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

.tab-btn:hover {
  color: var(--text-secondary);
}

.tab-btn.active {
  color: var(--text-primary);
  background: var(--bg-tertiary);
  box-shadow: var(--shadow-sm);
}

.tab-btn .tab-number {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-surface-active);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: 600;
}

.tab-btn.active .tab-number {
  background: var(--accent-primary);
  color: white;
}

.tab-btn.completed .tab-number {
  background: var(--color-success);
  color: white;
}

.tab-panel {
  display: none;
  animation: fadeIn 0.25s ease;
}

.tab-panel.active {
  display: block;
}

/* --- Pipeline Progress --- */
.pipeline {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg) 0;
  margin-bottom: var(--space-xl);
  overflow-x: auto;
}

.pipeline-step {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.pipeline-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  min-width: 100px;
}

.pipeline-dot {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 2px solid var(--border-default);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-tertiary);
  transition: all var(--transition-base);
  position: relative;
}

.pipeline-dot.active {
  border-color: var(--accent-primary);
  background: var(--accent-primary-glow);
  color: var(--accent-primary-hover);
  box-shadow: 0 0 16px var(--accent-primary-glow);
}

.pipeline-dot.completed {
  border-color: var(--color-success);
  background: var(--color-success);
  color: white;
}

.pipeline-dot.error {
  border-color: var(--color-error);
  background: var(--color-error);
  color: white;
}

/* Pulse animation for active step */
.pipeline-dot.active::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--accent-primary);
  animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.4); opacity: 0; }
}

.pipeline-label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  text-align: center;
  max-width: 80px;
  transition: color var(--transition-base);
}

.pipeline-step.active .pipeline-label {
  color: var(--text-primary);
}

.pipeline-step.completed .pipeline-label {
  color: var(--color-success);
}

.pipeline-connector {
  width: 60px;
  height: 2px;
  background: var(--border-default);
  margin: 0 var(--space-xs);
  margin-bottom: 24px;
  transition: background var(--transition-base);
  position: relative;
}

.pipeline-connector.completed {
  background: var(--color-success);
}

.pipeline-connector.active {
  background: linear-gradient(90deg, var(--color-success), var(--accent-primary));
}

/* --- Step 1: API Settings --- */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-lg);
}

.setting-card {
  padding: var(--space-lg);
}

.setting-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
  margin-bottom: var(--space-md);
}

.setting-card-icon.anthropic { background: rgba(204, 169, 120, 0.15); }
.setting-card-icon.gemini { background: rgba(66, 133, 244, 0.15); }
.setting-card-icon.wordpress { background: rgba(33, 150, 243, 0.15); }
.setting-card-icon.smtp { background: rgba(16, 185, 129, 0.15); }

/* API Key Input with mask */
.input-with-toggle {
  position: relative;
  display: flex;
  align-items: center;
}

.input-with-toggle .form-input {
  padding-right: 40px;
}

.input-toggle-btn {
  position: absolute;
  right: 4px;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.input-toggle-btn:hover {
  color: var(--text-primary);
}

/* Status indicator */
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: var(--space-xs);
}

.status-dot.connected { background: var(--color-success); }
.status-dot.disconnected { background: var(--color-error); }
.status-dot.pending { background: var(--color-warning); }

/* --- Step 2: Prompt Editor --- */
.prompt-editor-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-lg);
}

.prompt-editor {
  position: relative;
}

.prompt-editor .form-textarea {
  min-height: 400px;
  font-size: var(--text-sm);
  line-height: 1.7;
  padding: var(--space-md);
}

.prompt-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  padding: var(--space-sm);
  background: var(--bg-surface);
  border-radius: var(--radius-md);
}

.prompt-toolbar .btn-ghost {
  font-size: var(--text-xs);
  padding: 4px 10px;
}

/* Variable sidebar */
.variable-panel {
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  background: var(--bg-glass);
  overflow: hidden;
}

.variable-panel-header {
  padding: var(--space-md);
  border-bottom: 1px solid var(--border-default);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
}

.variable-list {
  padding: var(--space-sm);
  max-height: 400px;
  overflow-y: auto;
}

.variable-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: grab;
  transition: background var(--transition-fast), color var(--transition-fast);
  user-select: none;
}

.variable-item:hover {
  background: var(--bg-surface);
  color: var(--text-primary);
}

.variable-item:active {
  cursor: grabbing;
}

.variable-tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--accent-secondary);
  background: rgba(6, 182, 212, 0.1);
  border-radius: var(--radius-sm);
}

.variable-item .drag-handle {
  color: var(--text-tertiary);
  font-size: var(--text-xs);
}

/* --- Step 3: Execute --- */
.execute-section {
  text-align: center;
}

.execute-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.summary-item {
  padding: var(--space-md);
  text-align: left;
}

.summary-item-label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

.summary-item-value {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--text-primary);
  word-break: break-all;
}

.execute-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

/* --- Step 4: Result --- */
.result-card {
  margin-top: var(--space-lg);
}

.result-preview {
  padding: var(--space-lg);
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  margin-top: var(--space-md);
  max-height: 500px;
  overflow-y: auto;
  line-height: 1.8;
}

.result-preview h2,
.result-preview h3 {
  margin-top: var(--space-md);
  margin-bottom: var(--space-sm);
}

.result-preview p {
  margin-bottom: var(--space-sm);
}

.result-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.result-meta-item {
  padding: var(--space-md);
}

.result-meta-label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-bottom: var(--space-xs);
}

.result-meta-value {
  font-size: var(--text-sm);
  color: var(--text-primary);
}

/* --- Progress Bar --- */
.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--bg-surface);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
  position: relative;
}

.progress-bar-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.2) 50%,
    transparent 100%
  );
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.progress-info {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-sm);
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

/* --- Log Page: Table --- */
.page-logs {
  flex-direction: column;
  min-height: 100vh;
}

.logs-content {
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
  width: 100%;
}

.logs-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.logs-search {
  position: relative;
  flex: 1;
  max-width: 360px;
}

.logs-search .form-input {
  padding-left: 36px;
}

.logs-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  font-size: var(--text-sm);
  pointer-events: none;
}

.logs-filters {
  display: flex;
  gap: var(--space-sm);
}

/* Data Table */
.data-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  background: var(--bg-glass);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.data-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-default);
  white-space: nowrap;
  position: sticky;
  top: 0;
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-default);
  color: var(--text-secondary);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background var(--transition-fast);
}

.data-table tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.015);
}

.data-table tbody tr:hover {
  background: var(--bg-surface-hover);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* --- Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  font-size: var(--text-xs);
  font-weight: 500;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-success {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.badge-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}

.badge-error {
  background: var(--color-error-bg);
  color: var(--color-error);
}

.badge-info {
  background: var(--color-info-bg);
  color: var(--color-info);
}

.badge-default {
  background: var(--bg-surface);
  color: var(--text-secondary);
}

/* --- Modal --- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal-backdrop);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  animation: fadeIn 0.15s ease;
}

.modal-backdrop.open {
  display: flex;
}

.modal {
  width: 100%;
  max-width: 520px;
  max-height: 85vh;
  overflow-y: auto;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.2s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-lg) 0;
}

.modal-header h3 {
  font-size: var(--text-lg);
  font-weight: 600;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-size: var(--text-lg);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.modal-close:hover {
  color: var(--text-primary);
  background: var(--bg-surface);
}

.modal-body {
  padding: var(--space-lg);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-sm);
  padding: 0 var(--space-lg) var(--space-lg);
}

/* --- Toast Notifications --- */
.toast-container {
  position: fixed;
  top: var(--space-lg);
  right: var(--space-lg);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  pointer-events: none;
  max-width: 380px;
  width: 100%;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  pointer-events: all;
  animation: toastIn 0.3s ease;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.toast.removing {
  opacity: 0;
  transform: translateX(100%);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(100%); }
  to { opacity: 1; transform: translateX(0); }
}

.toast-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  margin-top: 1px;
}

.toast.toast-success .toast-icon { background: var(--color-success-bg); color: var(--color-success); }
.toast.toast-error .toast-icon { background: var(--color-error-bg); color: var(--color-error); }
.toast.toast-warning .toast-icon { background: var(--color-warning-bg); color: var(--color-warning); }
.toast.toast-info .toast-icon { background: var(--color-info-bg); color: var(--color-info); }

.toast-content {
  flex: 1;
  min-width: 0;
}

.toast-title {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
}

.toast-message {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  margin-top: 2px;
}

.toast-close {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: var(--text-sm);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.toast-close:hover {
  color: var(--text-primary);
}

/* Left border accent for toasts */
.toast.toast-success { border-left: 3px solid var(--color-success); }
.toast.toast-error { border-left: 3px solid var(--color-error); }
.toast.toast-warning { border-left: 3px solid var(--color-warning); }
.toast.toast-info { border-left: 3px solid var(--color-info); }

/* --- Loading Spinner --- */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--bg-surface-active);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.spinner-lg {
  width: 36px;
  height: 36px;
  border-width: 3px;
}

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

.loading-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-3xl);
  color: var(--text-secondary);
  font-size: var(--text-sm);
}

/* Skeleton loader */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-surface) 25%,
    var(--bg-surface-hover) 50%,
    var(--bg-surface) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-line {
  height: 14px;
  margin-bottom: var(--space-sm);
}

.skeleton-line:last-child {
  width: 60%;
}

/* --- Pagination --- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  margin-top: var(--space-xl);
}

.pagination-btn {
  min-width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-sm);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-family: var(--font-sans);
  transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
  border-color: var(--border-hover);
  background: var(--bg-surface);
  color: var(--text-primary);
}

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

.pagination-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* --- Empty State --- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl);
  text-align: center;
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.3;
}

.empty-state h3 {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.empty-state p {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  max-width: 360px;
}

/* --- Utility Classes --- */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.w-full { width: 100%; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.hidden { display: none !important; }
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --- Responsive Design --- */

/* Tablet */
@media (max-width: 768px) {
  :root {
    --space-lg: 16px;
    --space-xl: 24px;
    --space-2xl: 32px;
  }

  .container {
    padding: 0 var(--space-md);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .prompt-editor-layout {
    grid-template-columns: 1fr;
  }

  .variable-panel {
    order: -1;
  }

  .variable-list {
    max-height: 200px;
  }

  .settings-grid {
    grid-template-columns: 1fr;
  }

  .tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .tab-btn {
    flex: none;
    min-width: auto;
    padding: 10px 14px;
  }

  .pipeline {
    justify-content: flex-start;
    padding-left: var(--space-md);
  }

  .pipeline-connector {
    width: 32px;
  }

  .pipeline-node {
    min-width: 70px;
  }

  .data-table {
    font-size: var(--text-xs);
  }

  .data-table th,
  .data-table td {
    padding: 8px 10px;
  }

  .logs-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .logs-search {
    max-width: 100%;
  }

  .execute-summary {
    grid-template-columns: 1fr;
  }

  .result-meta {
    grid-template-columns: 1fr;
  }

  .modal {
    max-width: 100%;
    margin: var(--space-md);
  }
}

/* Mobile */
@media (max-width: 480px) {
  .app-header-inner {
    height: 48px;
  }

  .app-brand {
    font-size: var(--text-base);
  }

  .auth-card {
    padding: var(--space-lg);
  }

  .card {
    padding: var(--space-md);
  }

  .tabs {
    gap: 0;
  }

  .tab-btn {
    padding: 8px 10px;
    font-size: var(--text-xs);
  }

  .pipeline-dot {
    width: 28px;
    height: 28px;
    font-size: var(--text-xs);
  }

  .pipeline-connector {
    width: 20px;
  }

  .pipeline-label {
    font-size: 10px;
    max-width: 60px;
  }

  .btn-lg {
    padding: 12px 20px;
  }

  .toast-container {
    right: var(--space-sm);
    left: var(--space-sm);
    max-width: 100%;
  }
}

/* Prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}