/* ============================================
   AI-First Kit — Platform Design System v3
   Studio Layout — 3-column builder
   ============================================ */

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

:root {
  --bg: #0a0e14;
  --bg-elevated: #12161e;
  --bg-card: #151a23;
  --bg-input: #0d1117;
  --bg-tree: #080b10;
  --bg-sidebar: #0d1117;
  --bg-panel: #0a0e14;

  --green: #4ADE80;
  --green-dim: #14291c;
  --green-glow: rgba(74, 222, 128, 0.12);
  --green-glow-strong: rgba(74, 222, 128, 0.25);
  --red: #f85149;
  --yellow: #d29922;
  --blue: #58a6ff;
  --purple: #bc8cff;
  --cyan: #79c0ff;

  --text: #e6edf3;
  --text-muted: #8b949e;
  --text-dim: #484f58;

  --border: #21262d;
  --border-subtle: #1b1f27;
  --border-hover: #4ADE80;

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

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --text-xs: 11px;
  --text-sm: 13px;
  --text-base: 15px;
  --text-lg: 18px;
  --text-xl: 24px;
  --text-2xl: 32px;
  --text-3xl: 44px;

  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);

  --sidebar-w: 280px;
  --panel-w: 300px;
  --toolbar-h: 48px;
}

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  height: 100vh;
  overflow: hidden;
}

a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- Studio Layout (3 columns) --- */
.studio {
  display: grid;
  grid-template-rows: auto var(--toolbar-h) 1fr;
  grid-template-columns: var(--sidebar-w) 1fr var(--panel-w);
  grid-template-areas:
    "upgrade  upgrade  upgrade"
    "toolbar  toolbar  toolbar"
    "sidebar  canvas   panel";
  height: 100vh;
  overflow: hidden;
}

/* --- Upgrade Bar (free tier CTA) --- */
.upgrade-bar {
  grid-area: upgrade;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  border-bottom: 1px solid var(--border);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.upgrade-bar[hidden] { display: none; }

.upgrade-bar__text {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.upgrade-bar__badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--green-dim);
  color: var(--green);
  font-size: var(--text-xs);
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

.upgrade-bar__cta {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  border-radius: 6px;
  background: var(--green);
  color: var(--bg);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s, transform 0.1s;
}

.upgrade-bar__cta:hover {
  background: #5ee892;
  text-decoration: none;
  transform: translateY(-1px);
}

.upgrade-bar__cta:active {
  transform: translateY(0);
}

/* --- Toolbar (top bar) --- */
.toolbar {
  grid-area: toolbar;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-md);
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.toolbar__logo {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 900;
  font-size: var(--text-base);
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.3px;
}

.toolbar__logo:hover { text-decoration: none; }
.toolbar__logo-accent { color: var(--green); }

.toolbar__center {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.toolbar__counter {
  font-size: var(--text-xs);
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.toolbar__counter-number {
  color: var(--green);
  font-weight: 700;
}

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

/* --- Toolbar User Area --- */
.toolbar__user {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.toolbar__avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--border);
  object-fit: cover;
  flex-shrink: 0;
}

.toolbar__user-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-muted);
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.toolbar__user-plan {
  font-size: 10px;
  font-family: var(--font-mono);
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 700;
  text-transform: uppercase;
}

.toolbar__user-plan--free {
  background: var(--bg-card);
  color: var(--text-dim);
}

.toolbar__user-plan--pro {
  background: var(--green-dim);
  color: var(--green);
}

/* --- Left Sidebar (Module Catalog) --- */
.sidebar {
  grid-area: sidebar;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar__header {
  padding: var(--space-md);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar__title {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.sidebar__list {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-sm);
  padding-bottom: var(--space-lg);
}

/* Scrollbar styling */
.sidebar__list::-webkit-scrollbar { width: 4px; }
.sidebar__list::-webkit-scrollbar-track { background: transparent; }
.sidebar__list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

/* --- Module Card (detailed vertical) --- */
.module-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-xs);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  user-select: none;
  transition: all 150ms ease;
}

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

.module-card--selected {
  background: var(--green-dim) !important;
  border-color: var(--green) !important;
}

.module-card--base {
  background: var(--green-dim);
  border-color: rgba(74, 222, 128, 0.3);
  cursor: default;
}

.module-card--locked {
  opacity: 0.45;
}

.module-card--locked:hover {
  opacity: 0.65;
}

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

.module-card__icon {
  font-size: 16px;
  flex-shrink: 0;
}

.module-card__title {
  font-size: var(--text-sm);
  font-weight: 700;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.module-card__desc {
  font-size: var(--text-xs);
  color: var(--text-muted);
  line-height: 1.3;
}

.module-card__stats {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.module-card__stat {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--bg-elevated);
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-dim);
}

.module-card__stat-value {
  color: var(--text-muted);
  font-weight: 700;
}

.module-card__check {
  display: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--green);
  color: var(--bg);
  font-size: 10px;
  font-weight: 800;
  line-height: 16px;
  text-align: center;
  flex-shrink: 0;
}

.module-card--selected .module-card__check,
.module-card--base .module-card__check { display: block; }

.module-card__lock {
  font-size: 12px;
  opacity: 0.4;
  flex-shrink: 0;
}

/* --- Badges --- */
.badge {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.badge--free {
  color: var(--green);
  border: 1px solid rgba(74, 222, 128, 0.4);
  background: var(--green-dim);
}

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

/* --- Center Canvas (Studio Preview) --- */
.canvas {
  grid-area: canvas;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-panel);
  position: relative;
}

.canvas::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 200px;
  background: radial-gradient(ellipse, var(--green-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* --- Preview Tree (Terminal-style, fills canvas) --- */
.preview-tree {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.preview-tree__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  font-size: var(--text-xs);
  color: var(--text-dim);
  font-family: var(--font-mono);
  user-select: none;
  flex-shrink: 0;
}

.preview-tree__dots {
  display: flex;
  gap: 6px;
}

.preview-tree__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
}

.preview-tree__dot--red { background: #ff5f57; }
.preview-tree__dot--yellow { background: #febc2e; }
.preview-tree__dot--green { background: #28c840; }

.preview-tree__body {
  flex: 1;
  padding: var(--space-lg) var(--space-xl);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.8;
  overflow-y: auto;
  background: var(--bg-tree);
}

.preview-tree__body::-webkit-scrollbar { width: 4px; }
.preview-tree__body::-webkit-scrollbar-track { background: transparent; }
.preview-tree__body::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.preview-tree__empty {
  color: var(--text-dim);
  font-style: italic;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: var(--space-md);
  text-align: center;
}

.preview-tree__empty-icon {
  font-size: 48px;
  opacity: 0.3;
}

.preview-tree__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.preview-tree__item {
  white-space: nowrap;
  padding: 1px 0;
}

.preview-tree__connector {
  color: var(--text-dim);
  user-select: none;
}

.preview-tree__icon {
  display: inline-block;
  width: 20px;
  margin-right: 4px;
  text-align: center;
  font-size: 14px;
  line-height: 1;
  font-style: normal;
}

.preview-tree__name--dir {
  color: var(--blue);
  font-weight: 600;
}

.preview-tree__name--file { color: var(--text-muted); }

/* --- Canvas Footer (summary bar) --- */
.canvas-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-xs) var(--space-md);
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--text-dim);
  flex-shrink: 0;
  z-index: 1;
}

.canvas-footer__stats {
  display: flex;
  gap: var(--space-lg);
}

.canvas-footer__stat { display: flex; align-items: center; gap: 4px; }
.canvas-footer__stat-value { color: var(--text); font-weight: 700; }

.canvas-footer__modules { color: var(--text-muted); }

/* --- Right Panel (Config + Generate) --- */
.panel {
  grid-area: panel;
  background: var(--bg-sidebar);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel__scroll {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md);
}

.panel__scroll::-webkit-scrollbar { width: 4px; }
.panel__scroll::-webkit-scrollbar-track { background: transparent; }
.panel__scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

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

.panel__section-title {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border);
}

.panel__footer {
  padding: var(--space-md);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.form-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--text-dim);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.form-input {
  width: 100%;
  padding: 8px var(--space-sm);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

.form-input:focus {
  border-color: var(--green);
  outline: none;
  box-shadow: 0 0 0 3px var(--green-glow);
}

.form-input::placeholder { color: var(--text-dim); }

/* --- Radio Group --- */
.radio-group {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.radio-option { position: relative; }

.radio-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.radio-option__label {
  display: inline-flex;
  align-items: center;
  padding: 4px var(--space-sm);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 150ms ease;
  user-select: none;
}

.radio-option input[type="radio"]:checked + .radio-option__label {
  border-color: var(--green);
  color: var(--green);
  background: var(--green-dim);
}

.radio-option__label:hover {
  border-color: var(--text-dim);
  color: var(--text-muted);
}

/* --- BC Tags --- */
.bc-input-wrapper {
  display: flex;
  gap: var(--space-xs);
}

.bc-input-wrapper .form-input { flex: 1; }

.bc-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
}

.bc-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  background: var(--green-dim);
  border: 1px solid rgba(74, 222, 128, 0.3);
  border-radius: 20px;
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--green);
  transition: all 150ms ease;
}

.bc-tag:hover { border-color: var(--green); }

.bc-tag__remove {
  cursor: pointer;
  font-size: 12px;
  line-height: 1;
  opacity: 0.5;
  border: none;
  background: none;
  color: var(--green);
  padding: 0;
  transition: opacity 150ms ease;
}

.bc-tag__remove:hover { opacity: 1; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 10px var(--space-lg);
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 150ms ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover { text-decoration: none; }

.btn--primary {
  background: var(--green);
  color: var(--bg);
}

.btn--primary:hover {
  background: #5ee898;
  box-shadow: 0 0 24px var(--green-glow-strong);
}

.btn--primary:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  box-shadow: none;
}

.btn--secondary {
  background: transparent;
  color: var(--green);
  border-color: rgba(74, 222, 128, 0.4);
}

.btn--secondary:hover {
  background: var(--green-dim);
  border-color: var(--green);
}

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

.btn--ghost:hover {
  color: var(--text-muted);
  background: var(--bg-elevated);
}

.btn--sm { padding: 4px 10px; font-size: var(--text-xs); }
.btn--lg {
  padding: 14px var(--space-xl);
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
  width: 100%;
}

/* --- Summary (in panel) --- */
.summary__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  font-size: var(--text-sm);
}

.summary__row + .summary__row {
  border-top: 1px solid var(--border-subtle);
}

.summary__label { color: var(--text-dim); font-size: var(--text-xs); }

.summary__value {
  color: var(--text);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-sm);
}

/* --- Modal --- */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal--open { display: flex; }

.modal__content {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  max-width: 480px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal__title {
  font-size: var(--text-xl);
  font-weight: 800;
  margin-bottom: var(--space-sm);
}

.modal__desc {
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
  line-height: 1.5;
  font-size: var(--text-sm);
}

.modal__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.modal__list {
  list-style: none;
  margin: var(--space-md) 0;
}

.modal__list li {
  padding: 6px 0;
  font-size: var(--text-sm);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.modal__list li::before {
  content: "✓";
  color: var(--green);
  font-weight: 700;
  font-size: var(--text-xs);
}

.modal__content--narrow {
  max-width: 400px;
}

/* --- OAuth Login Buttons --- */
.login-providers {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.btn--oauth {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 150ms ease;
}

.btn--oauth:hover {
  border-color: var(--border-hover);
  background: var(--bg-elevated);
}

.btn__oauth-icon {
  flex-shrink: 0;
}

.login-terms {
  font-size: 11px;
  color: var(--text-dim);
  text-align: center;
  margin-top: var(--space-md);
  line-height: 1.4;
}

.login-terms a {
  color: var(--text-muted);
  text-decoration: underline;
}

.login-divider {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin: var(--space-sm) 0;
}

.login-divider__line {
  flex: 1;
  height: 1px;
  background: var(--border);
}

.login-divider__text {
  font-size: var(--text-xs);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.login-email-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.login-magic-hint {
  font-size: var(--text-sm);
  color: var(--green);
  text-align: center;
  margin-top: var(--space-xs);
}

/* --- Toast --- */
.toast {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  background: var(--bg-elevated);
  border: 1px solid var(--green);
  border-radius: var(--radius);
  padding: var(--space-sm) var(--space-lg);
  color: var(--text);
  font-size: var(--text-sm);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  box-shadow: 0 4px 24px rgba(74, 222, 128, 0.15);
  transform: translateY(0);
  opacity: 1;
  transition: opacity 300ms ease, transform 300ms ease;
}

.toast--hidden {
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
}

.toast__icon { color: var(--green); font-weight: 700; }
.toast--error { border-color: var(--red); }
.toast--error .toast__icon { color: var(--red); }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .studio {
    grid-template-columns: var(--sidebar-w) 1fr;
    grid-template-areas:
      "upgrade upgrade"
      "toolbar toolbar"
      "sidebar canvas";
  }
  .panel {
    display: none;
  }
  /* Show floating panel button */
  .canvas-footer__toggle-panel { display: flex; }
}

@media (max-width: 768px) {
  .studio {
    grid-template-columns: 1fr;
    grid-template-rows: auto var(--toolbar-h) auto 1fr;
    grid-template-areas:
      "upgrade"
      "toolbar"
      "sidebar"
      "canvas";
    height: auto;
    min-height: 100vh;
  }
  .upgrade-bar {
    flex-direction: column;
    gap: var(--space-xs);
    text-align: center;
  }
  body { overflow: auto; }
  .sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border);
    max-height: 280px;
  }
  .panel { display: none; }
  .canvas { min-height: 400px; }
  /* Show floating panel button */
  .canvas-footer__toggle-panel { display: flex; }
}

/* Panel as overlay on smaller screens */
.panel--overlay {
  position: fixed;
  top: var(--toolbar-h);
  right: 0;
  bottom: 0;
  width: var(--panel-w);
  z-index: 50;
  display: flex !important;
  box-shadow: var(--shadow-lg);
}

.panel-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 49;
  display: none;
}

.panel-backdrop--open { display: block; }

/* Toggle panel button (hidden on desktop) */
.canvas-footer__toggle-panel {
  display: none;
  align-items: center;
  gap: 4px;
  padding: 2px var(--space-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: var(--text-xs);
  font-family: var(--font-body);
  cursor: pointer;
  transition: all 150ms ease;
}

.canvas-footer__toggle-panel:hover {
  border-color: var(--green);
  color: var(--green);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
  .canvas::before { display: none; }
}

/* ============================================
   ONBOARDING TOUR
   ============================================ */

.tour-overlay {
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
}

.tour-overlay--active {
  pointer-events: auto;
}

.tour-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  z-index: 9998;
  transition: opacity 300ms ease;
}

.tour-spotlight {
  position: absolute;
  z-index: 9999;
  border-radius: var(--radius);
  box-shadow:
    0 0 0 4000px rgba(0, 0, 0, 0.75),
    0 0 0 3px var(--green),
    0 0 30px var(--green-glow-strong);
  transition: all 400ms cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.tour-spotlight::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: calc(var(--radius) + 3px);
  border: 2px solid var(--green);
  animation: tour-pulse 2s ease-in-out infinite;
}

@keyframes tour-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 12px var(--green-glow-strong); }
  50% { opacity: 0.5; box-shadow: 0 0 24px var(--green-glow-strong); }
}

.tour-tooltip {
  position: absolute;
  z-index: 10000;
  width: 320px;
  background: var(--bg-elevated);
  border: 1px solid var(--green);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-lg), 0 0 40px var(--green-glow);
  pointer-events: auto;
  animation: tour-fade-in 300ms ease both;
}

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

.tour-tooltip__step {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--bg);
  background: var(--green);
  padding: 2px 8px;
  border-radius: 10px;
  margin-bottom: var(--space-sm);
  letter-spacing: 0.05em;
}

.tour-tooltip__title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text);
  margin-bottom: var(--space-xs);
  line-height: 1.3;
}

.tour-tooltip__desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.tour-tooltip__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tour-tooltip__dots {
  display: flex;
  gap: 6px;
}

.tour-tooltip__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  transition: all 200ms ease;
}

.tour-tooltip__dot--active {
  background: var(--green);
  box-shadow: 0 0 6px var(--green-glow-strong);
}

.tour-tooltip__dot--done {
  background: var(--green-dim);
}

.tour-tooltip__nav {
  display: flex;
  gap: var(--space-sm);
}

.tour-tooltip__btn {
  padding: 6px 16px;
  border-radius: var(--radius);
  font-size: var(--text-sm);
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  transition: all 150ms ease;
}

.tour-tooltip__btn--next {
  background: var(--green);
  color: var(--bg);
}

.tour-tooltip__btn--next:hover {
  box-shadow: 0 0 16px var(--green-glow-strong);
}

.tour-tooltip__btn--skip {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
}

.tour-tooltip__btn--skip:hover {
  color: var(--text-muted);
  border-color: var(--text-dim);
}

.tour-tooltip__arrow {
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--bg-elevated);
  border-right: 1px solid var(--green);
  border-bottom: 1px solid var(--green);
}

.tour-tooltip__arrow--top {
  top: -7px;
  left: 32px;
  transform: rotate(-135deg);
}

.tour-tooltip__arrow--bottom {
  bottom: -7px;
  right: 32px;
  transform: rotate(45deg);
}

.tour-tooltip__arrow--left {
  left: -7px;
  top: 24px;
  transform: rotate(135deg);
}

.tour-tooltip__arrow--right {
  right: -7px;
  top: 24px;
  transform: rotate(-45deg);
}

@media (prefers-reduced-motion: reduce) {
  .tour-spotlight::after { animation: none; }
  .tour-tooltip { animation: none; }
}