* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-primary: #1a1a1a;
  --bg-secondary: #242424;
  --bg-tertiary: #2e2e2e;
  --text-primary: #e8e8e8;
  --text-secondary: #888;
  --text-muted: #666;
  --accent: #5D9A9A;
  --accent-hover: #6DAAAA;
  --border: #333;
  --color-success: #4CAF50;
  --color-success-bg: rgba(76, 175, 80, 0.15);
  --color-error: #ff6b6b;
  --color-error-bg: rgba(255, 100, 100, 0.2);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #e8e8e8;
    --text-primary: #1a1a1a;
    --text-secondary: #666;
    --text-muted: #888;
    --accent: #4D8A8A;
    --accent-hover: #3D7A7A;
    --border: #ddd;
    --color-success: #2e7d32;
    --color-success-bg: rgba(46, 125, 50, 0.12);
    --color-error: #c62828;
    --color-error-bg: rgba(198, 40, 40, 0.15);
  }
}

html, body {
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.5;
}

/* ─── Layout ─────────────────────────────── */

.onboarding-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
}

.onboarding-container {
  max-width: 640px;
  width: 100%;
}

.onboarding-header {
  text-align: center;
  margin-bottom: 40px;
}

.onboarding-header h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto;
}

.logo-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  color: var(--accent);
}

.logo-icon svg {
  width: 100%;
  height: 100%;
}

/* ─── Mode Selection Cards ───────────────── */

.mode-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.mode-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  text-align: left;
  transition: border-color 0.15s, transform 0.1s;
  display: flex;
  flex-direction: column;
  font-family: inherit;
  color: var(--text-primary);
  overflow: hidden;
}

.mode-preview {
  margin: -28px -24px 18px;
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, rgba(93, 154, 154, 0.18), rgba(0, 0, 0, 0.08));
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.mode-preview video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.mode-icon {
  width: 36px;
  height: 36px;
  margin-bottom: 16px;
  color: var(--accent);
}

.mode-icon svg {
  width: 100%;
  height: 100%;
}

.mode-card h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.mode-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  flex: 1;
}

.mode-setup {
  font-size: 12px;
  color: var(--text-muted);
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.done-sections {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.done-section {
  padding: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.done-section h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
}

.install-step {
  margin-bottom: 18px;
  padding: 14px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.install-step-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.agent-cards.compact {
  margin-bottom: 0;
}

/* ─── Connect Step ───────────────────────── */

.back-btn {
  position: fixed;
  top: 24px;
  left: 24px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  padding: 8px 0;
  font-family: inherit;
  z-index: 10;
}

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

.connect-sections {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.section-kicker {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.connect-section h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.section-intro {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

.connect-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.quick-connect-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.quick-connect-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s, transform 0.1s;
  font-family: inherit;
  color: var(--text-primary);
}

.quick-connect-card:hover:not(:disabled) {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.quick-connect-card.connected {
  border-color: var(--color-success);
  background: var(--color-success-bg);
}

.quick-connect-card.selected {
  border-color: var(--accent);
  background: rgba(93, 154, 154, 0.1);
}

.quick-connect-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.quick-connect-title {
  font-size: 15px;
  font-weight: 600;
}

.quick-connect-desc {
  font-size: 13px;
  color: var(--text-secondary);
}

.quick-connect-pill {
  font-size: 11px;
  color: var(--text-muted);
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.nested-panel {
  margin-top: 14px;
  padding: 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.connect-option {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s;
  font-family: inherit;
  color: var(--text-primary);
}

.connect-option:hover:not(:disabled) {
  border-color: var(--accent);
}

.connect-option:disabled {
  cursor: default;
}

.connect-option.connected {
  border-color: var(--color-success);
  background: var(--color-success-bg);
}

.connect-option-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.connect-option-desc {
  font-size: 13px;
  color: var(--text-secondary);
}

.check-mark {
  font-size: 12px;
  padding: 2px 8px;
  background: var(--color-success-bg);
  color: var(--color-success);
  border-radius: 10px;
}

/* ─── API Provider Grid ──────────────────── */

.api-provider-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.api-provider-btn {
  padding: 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  text-align: center;
  transition: border-color 0.15s;
  font-family: inherit;
  color: var(--text-primary);
}

.api-provider-btn:hover:not(:disabled) {
  border-color: var(--accent);
}

.api-provider-btn.selected {
  border-color: var(--accent);
  background: rgba(93, 154, 154, 0.1);
}

.api-provider-btn.connected {
  border-color: var(--color-success);
}

.api-provider-btn:disabled {
  cursor: default;
}

.api-key-entry {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.api-key-entry input {
  flex: 1;
  padding: 10px 14px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
}

.api-key-entry input:focus {
  outline: none;
  border-color: var(--accent);
}

.api-key-entry input::placeholder {
  color: var(--text-muted);
}

/* ─── Banners ────────────────────────────── */

.success-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: var(--color-success-bg);
  border: 1px solid var(--color-success-bg);
  border-radius: 10px;
  color: var(--color-success);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
}

.error-banner {
  padding: 14px 16px;
  background: var(--color-error-bg);
  border: 1px solid var(--color-error-bg);
  border-radius: 10px;
  color: var(--color-error);
  font-size: 14px;
  margin-bottom: 24px;
}

/* ─── Done Steps ─────────────────────────── */

.success-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 20px;
  color: var(--color-success);
}

.success-icon svg {
  width: 100%;
  height: 100%;
}

.example-tasks {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}

.example-task {
  padding: 14px 18px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  color: var(--text-primary);
  font-style: italic;
}

/* ─── Agent Cards ────────────────────────── */

.agent-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.agent-card {
  padding: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.agent-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.agent-card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.command-block {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 10px;
}

.command-block code {
  flex: 1;
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 13px;
  color: var(--text-primary);
  overflow-x: auto;
  white-space: nowrap;
}

.copy-btn {
  padding: 4px 10px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  flex-shrink: 0;
  font-family: inherit;
}

.copy-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent);
}

.verify-step {
  font-size: 12px;
  color: var(--text-muted);
}

/* ─── Footer / Buttons ───────────────────── */

.onboarding-footer {
  text-align: center;
  margin-top: 32px;
}

.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
}

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

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

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--bg-secondary);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
}

.skip-btn {
  font-size: 13px;
  color: var(--text-muted);
}

/* ─── Custom Model Form ──────────────────── */

.custom-model-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.custom-model-form input {
  padding: 10px 14px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
}

.custom-model-form input:focus {
  outline: none;
  border-color: var(--accent);
}

.custom-model-form input::placeholder {
  color: var(--text-muted);
}

.connect-hint {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 8px;
}

.defaults-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.default-select-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.default-select-card.primary {
  border-color: rgba(93, 154, 154, 0.45);
}

.default-select-card.secondary {
  opacity: 0.92;
}

.default-label {
  font-size: 14px;
  font-weight: 600;
}

.default-select-card select {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
}

.default-select-card select:focus {
  outline: none;
  border-color: var(--accent);
}

.default-help {
  font-size: 12px;
  color: var(--text-muted);
}

.advanced-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
}

.advanced-section summary {
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  list-style: none;
}

.advanced-section summary::-webkit-details-marker {
  display: none;
}

.advanced-section[open] summary {
  margin-bottom: 12px;
}

.hint-text {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 20px;
}

.hint-text.compact {
  margin-top: 12px;
}

/* ─── Toolbar Hint Illustration ──────────── */

.toolbar-hint {
  margin-bottom: 32px;
}

.toolbar-hint-svg {
  width: 100%;
  max-width: 480px;
  display: block;
  margin: 0 auto;
}

/* ─── Status Items ───────────────────────── */

.status-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.status-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
}

.status-dot {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 999px;
}

.status-dot.ok {
  color: var(--color-success);
  background: var(--color-success-bg);
}

.status-dot.pending {
  color: var(--text-muted);
  background: var(--bg-tertiary);
}

.status-label {
  font-weight: 500;
}

.status-detail {
  margin-left: auto;
  font-size: 13px;
  color: var(--text-muted);
}

@media (max-width: 760px) {
  .mode-cards,
  .defaults-grid,
  .api-provider-grid,
  .quick-connect-grid {
    grid-template-columns: 1fr;
  }
}

/* Focus styles */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button:focus-visible,
.btn:focus-visible,
.quick-connect-card:focus-visible,
.connect-option:focus-visible,
.api-provider-btn:focus-visible,
.copy-btn:focus-visible,
.back-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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