/* ═══════════════════════════════════════════════════════════
   Forma — AI 3D Print Studio
   Design System: "Digital Atelier"
   ═══════════════════════════════════════════════════════════ */

/* ── Design Tokens ── */
:root {
  /* Typography */
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Hanken Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Type Scale (1.25 ratio) */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5rem;
  --text-2xl: 2rem;
  --text-3xl: 2.5rem;

  /* Spacing (8px grid) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --dur-fast: 0.15s;
  --dur: 0.25s;
  --dur-slow: 0.4s;

  /* Layout */
  --header-h: 56px;
  --panel-create-w: 340px;
  --panel-gallery-w: 300px;
  --z-dock: 10;
  --z-loading: 20;
  --z-header: 100;
  --z-mobile-nav: 200;
}

/* ── Light Theme (default) ── */
:root,
[data-theme="light"] {
  --bg-canvas: oklch(97% 0.006 60);
  --bg-surface: oklch(99% 0.003 60);
  --bg-elevated: oklch(95% 0.008 60);
  --bg-hover: oklch(93% 0.01 60);
  --bg-active: oklch(91% 0.012 60);

  --fg-primary: oklch(20% 0.012 60);
  --fg-secondary: oklch(45% 0.01 60);
  --fg-tertiary: oklch(62% 0.008 60);
  --fg-inverse: oklch(98% 0.003 60);

  --accent: oklch(58% 0.16 42);
  --accent-hover: oklch(52% 0.17 42);
  --accent-active: oklch(48% 0.17 42);
  --accent-soft: oklch(92% 0.04 42);
  --accent-fg: oklch(98% 0.003 60);

  --success: oklch(52% 0.13 155);
  --success-soft: oklch(92% 0.04 155);
  --warning: oklch(68% 0.15 70);
  --warning-soft: oklch(93% 0.05 70);
  --danger: oklch(55% 0.2 25);
  --danger-soft: oklch(93% 0.04 25);

  --border: oklch(90% 0.006 60);
  --border-strong: oklch(84% 0.008 60);
  --border-accent: oklch(75% 0.06 42);

  --shadow-sm: 0 1px 2px oklch(20% 0.01 60 / 0.06);
  --shadow-md: 0 2px 8px oklch(20% 0.01 60 / 0.08);
  --shadow-lg: 0 8px 24px oklch(20% 0.01 60 / 0.12);

  --viewport-bg: radial-gradient(ellipse at center, oklch(96% 0.006 60) 0%, oklch(90% 0.008 60) 100%);
}

/* ── Dark Theme ── */
[data-theme="dark"] {
  --bg-canvas: oklch(16% 0.008 60);
  --bg-surface: oklch(19% 0.008 60);
  --bg-elevated: oklch(23% 0.01 60);
  --bg-hover: oklch(26% 0.01 60);
  --bg-active: oklch(29% 0.012 60);

  --fg-primary: oklch(93% 0.005 60);
  --fg-secondary: oklch(70% 0.008 60);
  --fg-tertiary: oklch(50% 0.006 60);
  --fg-inverse: oklch(18% 0.008 60);

  --accent: oklch(68% 0.15 42);
  --accent-hover: oklch(72% 0.15 42);
  --accent-active: oklch(64% 0.15 42);
  --accent-soft: oklch(30% 0.06 42);
  --accent-fg: oklch(16% 0.008 60);

  --success: oklch(65% 0.13 155);
  --success-soft: oklch(28% 0.05 155);
  --warning: oklch(75% 0.15 70);
  --warning-soft: oklch(28% 0.06 70);
  --danger: oklch(65% 0.2 25);
  --danger-soft: oklch(28% 0.06 25);

  --border: oklch(28% 0.008 60);
  --border-strong: oklch(35% 0.01 60);
  --border-accent: oklch(40% 0.08 42);

  --shadow-sm: 0 1px 2px oklch(0% 0 0 / 0.2);
  --shadow-md: 0 2px 8px oklch(0% 0 0 / 0.3);
  --shadow-lg: 0 8px 24px oklch(0% 0 0 / 0.4);

  --viewport-bg: radial-gradient(ellipse at center, oklch(22% 0.01 60) 0%, oklch(14% 0.008 60) 100%);
}

/* ── System Theme ── */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) {
    --bg-canvas: oklch(16% 0.008 60);
    --bg-surface: oklch(19% 0.008 60);
    --bg-elevated: oklch(23% 0.01 60);
    --bg-hover: oklch(26% 0.01 60);
    --bg-active: oklch(29% 0.012 60);
    --fg-primary: oklch(93% 0.005 60);
    --fg-secondary: oklch(70% 0.008 60);
    --fg-tertiary: oklch(50% 0.006 60);
    --fg-inverse: oklch(18% 0.008 60);
    --accent: oklch(68% 0.15 42);
    --accent-hover: oklch(72% 0.15 42);
    --accent-active: oklch(64% 0.15 42);
    --accent-soft: oklch(30% 0.06 42);
    --accent-fg: oklch(16% 0.008 60);
    --success: oklch(65% 0.13 155);
    --success-soft: oklch(28% 0.05 155);
    --warning: oklch(75% 0.15 70);
    --warning-soft: oklch(28% 0.06 70);
    --danger: oklch(65% 0.2 25);
    --danger-soft: oklch(28% 0.06 25);
    --border: oklch(28% 0.008 60);
    --border-strong: oklch(35% 0.01 60);
    --border-accent: oklch(40% 0.08 42);
    --shadow-sm: 0 1px 2px oklch(0% 0 0 / 0.2);
    --shadow-md: 0 2px 8px oklch(0% 0 0 / 0.3);
    --shadow-lg: 0 8px 24px oklch(0% 0 0 / 0.4);
    --viewport-bg: radial-gradient(ellipse at center, oklch(22% 0.01 60) 0%, oklch(14% 0.008 60) 100%);
  }
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { height: 100%; -webkit-font-smoothing: antialiased; }
body {
  height: 100%;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--fg-primary);
  background: var(--bg-canvas);
  overflow: hidden;
  transition: background var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}
.hidden { display: none !important; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
textarea, input, select { font-family: inherit; }
a { color: inherit; text-decoration: none; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--fg-tertiary); }

/* ═══════════════ HEADER ═══════════════ */
.studio-header {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-4);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  position: relative;
  z-index: var(--z-header);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: var(--panel-create-w);
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: var(--radius-md);
  transition: transform var(--dur) var(--ease-out);
}
.brand-mark:hover { transform: rotate(12deg) scale(1.05); }

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--fg-primary);
}
.brand-tag {
  font-size: var(--text-xs);
  color: var(--fg-tertiary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.header-center {
  flex: 1;
  display: flex;
  justify-content: center;
}

/* Mode Switch */
.mode-switch {
  display: flex;
  gap: 2px;
  padding: 3px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}
.mode-tab {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--fg-secondary);
  transition: all var(--dur) var(--ease-out);
}
.mode-tab:hover { color: var(--fg-primary); background: var(--bg-hover); }
.mode-tab.active {
  background: var(--bg-surface);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
}
.mode-tab svg { flex-shrink: 0; }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  min-width: var(--panel-gallery-w);
  justify-content: flex-end;
}

/* API Status */
.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--fg-tertiary);
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: var(--fg-tertiary);
  transition: background var(--dur) var(--ease-out);
}
.status-indicator.ok .status-dot { background: var(--success); box-shadow: 0 0 8px var(--success); }
.status-indicator.ok .status-text { color: var(--success); }
.status-indicator.error .status-dot { background: var(--danger); }
.status-indicator.error .status-text { color: var(--danger); }

/* Theme Toggle */
.theme-toggle {
  display: flex;
  gap: 2px;
  padding: 3px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}
.theme-btn {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--fg-tertiary);
  transition: all var(--dur) var(--ease-out);
}
.theme-btn:hover { color: var(--fg-primary); background: var(--bg-hover); }
.theme-btn.active {
  background: var(--bg-surface);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
}

/* ═══════════════ MAIN STUDIO LAYOUT ═══════════════ */
.studio-main {
  display: grid;
  grid-template-columns: var(--panel-create-w) 1fr var(--panel-gallery-w);
  height: calc(100vh - var(--header-h));
  overflow: hidden;
}

/* ═══════════════ LEFT: Create Panel ═══════════════ */
.panel-create {
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
}

/* Upload Zone */
.upload-zone {
  padding: var(--space-4);
}
.upload-label {
  display: block;
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-4);
  text-align: center;
  cursor: pointer;
  transition: all var(--dur) var(--ease-out);
}
.upload-label:hover {
  border-color: var(--border-accent);
  background: var(--accent-soft);
}
.upload-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--fg-tertiary);
}
.upload-label:hover .upload-placeholder { color: var(--accent); }
.upload-title { font-size: var(--text-sm); font-weight: 500; }
.upload-hint { font-size: var(--text-xs); color: var(--fg-tertiary); }
.upload-preview {
  max-height: 120px;
  max-width: 100%;
  border-radius: var(--radius-md);
  margin: 0 auto;
}

/* Prompt Input Section */
.create-input-section {
  padding: var(--space-4);
  border-top: 1px solid var(--border);
}
.input-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg-tertiary);
  margin-bottom: var(--space-2);
}
.prompt-input {
  width: 100%;
  padding: var(--space-3);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--bg-canvas);
  color: var(--fg-primary);
  font-size: var(--text-sm);
  line-height: 1.5;
  resize: none;
  transition: border-color var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}
.prompt-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.prompt-input::placeholder { color: var(--fg-tertiary); }

/* Generate Button */
.btn-generate {
  width: 100%;
  margin-top: var(--space-3);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  border-radius: var(--radius-md);
  background: var(--accent);
  color: var(--accent-fg);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: all var(--dur) var(--ease-out);
}
.btn-generate:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-generate:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}
.btn-generate:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Advanced Settings */
.advanced-settings {
  border-top: 1px solid var(--border);
}
.settings-summary {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg-tertiary);
  cursor: pointer;
  transition: color var(--dur) var(--ease-out), background var(--dur) var(--ease-out);
  list-style: none;
  user-select: none;
}
.settings-summary::-webkit-details-marker { display: none; }
.settings-summary:hover { color: var(--fg-secondary); background: var(--bg-hover); }
.settings-summary svg { transition: transform var(--dur) var(--ease-out); }
.advanced-settings[open] .settings-summary svg { transform: rotate(180deg); }

.settings-body {
  padding: var(--space-2) var(--space-4) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}
.setting-label {
  font-size: var(--text-sm);
  color: var(--fg-secondary);
}
.setting-select {
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-canvas);
  color: var(--fg-primary);
  font-size: var(--text-xs);
  cursor: pointer;
}
.setting-select:focus { outline: none; border-color: var(--accent); }

/* Toggle Switch */
.toggle-switch {
  position: relative;
  width: 36px;
  height: 20px;
  display: inline-block;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--border-strong);
  border-radius: var(--radius-full);
  transition: background var(--dur) var(--ease-out);
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  left: 3px;
  top: 3px;
  background: var(--bg-surface);
  border-radius: var(--radius-full);
  transition: transform var(--dur) var(--ease-out);
  box-shadow: var(--shadow-sm);
}
.toggle-switch input:checked + .toggle-slider {
  background: var(--accent);
}
.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(16px);
}

/* Activity Log */
.activity-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 120px;
  border-top: 1px solid var(--border);
}
.section-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg-tertiary);
}
.icon-btn-sm {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--fg-tertiary);
  transition: all var(--dur-fast) var(--ease-out);
}
.icon-btn-sm:hover { color: var(--fg-primary); background: var(--bg-hover); }

.activity-log {
  flex: 1;
  overflow-y: auto;
  padding: 0 var(--space-4) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.activity-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 60px;
  font-size: var(--text-xs);
  color: var(--fg-tertiary);
  font-style: italic;
}

/* Activity entry */
.activity-entry {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  font-size: var(--text-xs);
  line-height: 1.5;
  animation: slideIn var(--dur) var(--ease-out);
}
.activity-entry::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: var(--radius-full);
  margin-top: 6px;
  flex-shrink: 0;
}
.activity-entry.user::before { background: var(--accent); }
.activity-entry.system::before { background: var(--fg-tertiary); }
.activity-entry.success::before { background: var(--success); }
.activity-entry.error::before { background: var(--danger); }
.activity-entry .activity-time {
  font-family: var(--font-mono);
  color: var(--fg-tertiary);
  font-size: 10px;
  flex-shrink: 0;
}
.activity-entry .activity-text {
  color: var(--fg-secondary);
  word-break: break-word;
}
.activity-entry.user .activity-text { color: var(--fg-primary); font-weight: 500; }

@keyframes slideIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ═══════════════ CENTER: Viewport ═══════════════ */
.panel-viewport {
  display: flex;
  flex-direction: column;
  background: var(--bg-canvas);
  position: relative;
  overflow: hidden;
}

/* Viewport Toolbar */
.viewport-toolbar {
  height: 44px;
  display: flex;
  align-items: center;
  padding: 0 var(--space-4);
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
  flex-shrink: 0;
}
.task-info {
  font-size: var(--text-xs);
  color: var(--fg-tertiary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.task-info-idle { color: var(--fg-tertiary); font-style: italic; }

/* Status badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.status-PENDING, .status-SUBMITTED, .status-QUEUED, .status-PROCESSING {
  background: var(--warning-soft);
  color: var(--warning);
}
.status-DONE, .status-DOWNLOADED, .status-PRINTABLE {
  background: var(--success-soft);
  color: var(--success);
}
.status-FAIL, .status-REJECTED {
  background: var(--danger-soft);
  color: var(--danger);
}

/* Viewport Canvas */
.viewport-canvas {
  flex: 1;
  position: relative;
  background: var(--viewport-bg);
  overflow: hidden;
}

model-viewer {
  width: 100%;
  height: 100%;
  --poster-color: transparent;
}

/* Empty State */
.viewport-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  color: var(--fg-tertiary);
}
.empty-visual {
  opacity: 0.6;
  animation: float 4s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.empty-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--fg-secondary);
}
.empty-hint {
  font-size: var(--text-sm);
  color: var(--fg-tertiary);
}

/* Loading State */
.viewport-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  background: var(--bg-canvas);
  z-index: var(--z-loading);
}

.loading-orb {
  position: relative;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.orb-ring {
  position: absolute;
  inset: 0;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: var(--radius-full);
  animation: spin 1.2s linear infinite;
}
.orb-ring-2 {
  inset: 12px;
  border-top-color: var(--accent-hover);
  animation-duration: 1.8s;
  animation-direction: reverse;
}
.orb-core {
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: var(--radius-full);
  animation: pulse 1.5s ease-in-out infinite;
  box-shadow: 0 0 20px var(--accent);
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.3); opacity: 1; }
}

.loading-status {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--fg-primary);
}
.loading-timer {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--fg-tertiary);
}

.loading-stages {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-2);
}
.loading-stages .stage {
  font-size: 10px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: var(--bg-elevated);
  color: var(--fg-tertiary);
  border: 1px solid var(--border);
  transition: all var(--dur) var(--ease-out);
}
.loading-stages .stage.active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--border-accent);
}
.loading-stages .stage.done {
  background: var(--success-soft);
  color: var(--success);
  border-color: transparent;
}

/* Result Dock */
.result-dock {
  position: absolute;
  bottom: var(--space-4);
  left: var(--space-4);
  right: var(--space-4);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dock);
  max-height: 40%;
  overflow-y: auto;
  animation: dockSlideUp var(--dur-slow) var(--ease-out);
}
@keyframes dockSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.dock-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
}
.dock-title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--success);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.dock-title::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--success);
  box-shadow: 0 0 6px var(--success);
}
.dock-downloads {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.dock-details {
  padding: var(--space-3) var(--space-4);
}

/* Download buttons */
.dl-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 500;
  background: var(--bg-elevated);
  color: var(--fg-primary);
  border: 1px solid var(--border);
  transition: all var(--dur-fast) var(--ease-out);
}
.dl-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}
.dl-btn.stl {
  background: var(--success-soft);
  color: var(--success);
  border-color: transparent;
}
.dl-btn.stl:hover { background: var(--success); color: var(--fg-inverse); }

/* Printability report */
.printability-report {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--fg-secondary);
}
.printability-report .report-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-mono);
}
.printability-report .report-label {
  color: var(--fg-tertiary);
}
.printability-report .fixes {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--border);
}
.fix-tag {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent);
}

/* Pricing & Order section */
.pricing-section {
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--border-strong);
}
.pricing-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--fg-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-2);
}
.pricing-buttons {
  display: flex;
  gap: var(--space-2);
}
.pay-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  font-weight: 600;
  transition: all var(--dur) var(--ease-out);
  border: 1px solid var(--border);
}
.pay-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.pay-btn .pay-label { font-size: var(--text-sm); }
.pay-btn .pay-price {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: 700;
}
.pay-download {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}
.pay-download:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.pay-print {
  background: var(--bg-surface);
  color: var(--fg-primary);
  border-color: var(--border-strong);
}
.pay-print:hover { border-color: var(--accent); }
.pay-status {
  font-size: var(--text-xs);
  color: var(--fg-tertiary);
  margin-top: var(--space-2);
  text-align: center;
}

/* ═══════════════ RIGHT: Gallery & Orders ═══════════════ */
.panel-gallery {
  background: var(--bg-surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.gallery-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.gallery-tab {
  flex: 1;
  padding: var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--fg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  border-bottom: 2px solid transparent;
  transition: all var(--dur) var(--ease-out);
}
.gallery-tab:hover { color: var(--fg-secondary); }
.gallery-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.tab-count {
  font-size: 10px;
  font-family: var(--font-mono);
  padding: 1px 6px;
  border-radius: var(--radius-full);
  background: var(--bg-elevated);
  color: var(--fg-tertiary);
}

.gallery-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.gallery-content:not(.active) { display: none; }

.gallery-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  flex-shrink: 0;
}
.gallery-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--fg-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.gallery-grid {
  flex: 1;
  overflow-y: auto;
  padding: 0 var(--space-4) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.gallery-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 80px;
  font-size: var(--text-xs);
  color: var(--fg-tertiary);
  font-style: italic;
}

/* History card */
.history-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
  background: var(--bg-surface);
}
.history-card:hover {
  border-color: var(--border-accent);
  background: var(--bg-hover);
}
.history-card.active {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.history-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.history-card-prompt {
  font-size: var(--text-xs);
  color: var(--fg-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.history-card-time {
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--fg-tertiary);
  margin-left: auto;
}

/* Orders list */
.orders-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 var(--space-4) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* Order card */
.order-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
}
.order-card:hover { border-color: var(--border-strong); background: var(--bg-hover); }
.order-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
}
.order-card-type {
  font-weight: 600;
  color: var(--fg-primary);
}
.order-card-price {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--fg-secondary);
}
.order-card-meta {
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--fg-tertiary);
}

/* ═══════════════ MOBILE NAV ═══════════════ */
.mobile-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 50px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  z-index: var(--z-mobile-nav);
}
.mobile-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--fg-tertiary);
}
.mobile-tab.active { color: var(--accent); }

/* ═══════════════ RESPONSIVE ═══════════════ */
@media (max-width: 1024px) {
  .header-brand { min-width: auto; }
  .header-actions { min-width: auto; }
  .brand-tag { display: none; }

  .studio-main {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
  }

  .panel-create,
  .panel-gallery {
    display: none;
  }

  .mobile-nav { display: flex; }

  .studio-main[data-active-panel="create"] .panel-create { display: flex; }
  .studio-main[data-active-panel="gallery"] .panel-gallery { display: flex; }
  .studio-main[data-active-panel="viewport"] .panel-viewport { display: flex; }
  .studio-main:not([data-active-panel="create"]) .panel-create { display: none; }
  .studio-main:not([data-active-panel="gallery"]) .panel-gallery { display: none; }
  .studio-main:not([data-active-panel="viewport"]) .panel-viewport { display: none; }
}

@media (max-width: 640px) {
  .header-center { display: none; }
  .mode-switch { display: none; }
  .status-indicator .status-text { display: none; }
}

/* ═══════════════ LANGUAGE SWITCHER ═══════════════ */
.lang-toggle {
  display: flex;
  gap: 2px;
  padding: 3px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}
.lang-btn {
  min-width: 34px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--fg-tertiary);
  transition: all var(--dur) var(--ease-out);
}
.lang-btn:hover { color: var(--fg-primary); background: var(--bg-hover); }
.lang-btn.active {
  background: var(--bg-surface);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
}

/* ═══════════════ ARABIC / RTL SUPPORT ═══════════════ */
html[lang="ar"] {
  --font-display: 'Noto Kufi Arabic', 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Noto Kufi Arabic', 'Hanken Grotesk', system-ui, sans-serif;
}

[dir="rtl"] .header-brand { min-width: var(--panel-create-w); }

[dir="rtl"] .panel-create {
  border-right: none;
  border-left: 1px solid var(--border);
}

[dir="rtl"] .panel-gallery {
  border-left: none;
  border-right: 1px solid var(--border);
}

[dir="rtl"] .studio-main {
  grid-template-columns: var(--panel-gallery-w) 1fr var(--panel-create-w);
}

[dir="rtl"] .panel-create { order: 3; }
[dir="rtl"] .panel-viewport { order: 2; }
[dir="rtl"] .panel-gallery { order: 1; }

[dir="rtl"] .history-card-time { margin-left: 0; margin-right: auto; }

[dir="rtl"] .activity-entry { flex-direction: row-reverse; }

[dir="rtl"] .dock-downloads { flex-direction: row-reverse; }

[dir="rtl"] .loading-stages { flex-direction: row-reverse; }

[dir="rtl"] .pricing-buttons { flex-direction: row-reverse; }

[dir="rtl"] .gallery-tabs { flex-direction: row-reverse; }

[dir="rtl"] .mode-switch { flex-direction: row-reverse; }

[dir="rtl"] .header-actions { flex-direction: row-reverse; }

[dir="rtl"] .header-brand { flex-direction: row-reverse; }

[dir="rtl"] .result-dock {
  left: var(--space-4);
  right: var(--space-4);
}

/* RTL toggle slider direction */
[dir="rtl"] .toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(-16px);
}

/* ═══════════════ UTILITY ═══════════════ */
.text-mono { font-family: var(--font-mono); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-tertiary { color: var(--fg-tertiary); }
.flex-gap-2 { gap: var(--space-2); }
.flex-gap-3 { gap: var(--space-3); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.pb-2 { padding-bottom: var(--space-2); }