/* ============================================================
 * PCBWeave — Unified Design System
 * ============================================================
 * A single shared stylesheet used across every HTML page.
 * Define tokens here; components read from them so a value can
 * be changed in one place. HTML pages should import this file
 * BEFORE their own page-specific styles so overrides still work.
 */

:root {
  color-scheme: light;

  /* ---- Brand / semantic colors ---- */
  --color-primary: #1565c0;
  --color-primary-hover: #1255a1;
  --color-primary-active: #0d47a1;
  --color-primary-bg: #e3f2fd;
  --color-primary-soft: #bbdefb;

  --color-success: #2e7d32;
  --color-success-text: #1b5e20;
  --color-success-hover: #256829;
  --color-success-bg: #e8f5e9;
  --color-success-border: #a5d6a7;

  --color-danger: #c62828;
  --color-danger-text: #8e1b1b;
  --color-danger-hover: #b71c1c;
  --color-danger-bg: #ffebee;
  --color-danger-border: #e57373;
  --color-danger-border-soft: #ffcdd2;

  --color-warning: #e65100;
  --color-warning-text: #7a2e00;
  --color-warning-hover: #d35400;
  --color-warning-bg: #fff3e0;
  --color-warning-border: #ffe0b2;

  --color-info: #0288d1;
  --color-info-text: #015a8a;
  --color-info-bg: #e1f5fe;
  --color-info-border: #81d4fa;

  /* Admin/secondary accent (purple) — used on admin-only pages */
  --color-admin: #7b1fa2;
  --color-admin-hover: #6a1b9a;
  --color-admin-bg: #f3e5f5;

  /* ---- Text ---- */
  --text-strong: #222;
  --text-primary: #333;
  --text-secondary: #555;
  --text-muted: #888;
  --text-faint: #ccc;
  --text-on-primary: #fff;

  /* ---- Surfaces ---- */
  --bg-page: #fff;
  --bg-body: #f0f2f5;
  --bg-subtle: #f5f5f5;
  --bg-raised: #fafafa;
  --bg-hover: #f0f0f0;
  --bg-active: #e8e8e8;
  --bg-primary: var(--bg-body);
  --bg-secondary: var(--bg-subtle);
  --bg-panel: var(--bg-raised);
  --bg-muted: #f8f8f8;
  --bg-code: #f5f5f5;
  --bg-input: #fff;
  --bg-card: var(--bg-page);
  --bg-card-hover: var(--bg-raised);
  --bg-hover-2: rgba(0, 0, 0, 0.06);
  --bg-selected: var(--color-primary-bg);
  --input-bg: var(--bg-input);
  --panel-bg: var(--bg-page);
  --btn-bg: var(--bg-hover);

  --border-color: #ddd;
  --border-strong: #ccc;
  --border-subtle: #eee;
  --border: var(--border-color);
  --border-faint: #eee;
  --border-card: var(--border-subtle);
  --color-border: var(--border-color);
  --color-border-subtle: var(--border-subtle);
  --panel-border: var(--border-color);

  /* ---- Legacy/component aliases ---- */
  --accent: var(--color-primary);
  --accent-color: var(--color-primary);
  --accent-bg: var(--color-primary);
  --accent-soft: var(--color-primary-bg);
  --accent-warn: var(--color-warning);
  --accent-blue: var(--color-primary);
  --accent-blue-dim: var(--color-primary-active);
  --accent-copper: #b56f2a;
  --accent-copper-dim: rgba(181, 111, 42, 0.14);
  --accent-green: var(--color-success);
  --color-error: var(--color-danger);
  --color-text-secondary: var(--text-secondary);

  /* ---- Type scale ---- */
  --font-xs: 10px;
  --font-sm: 11px;
  --font-base: 12px;
  --font-md: 13px;
  --font-lg: 14px;
  --font-xl: 16px;
  --font-family: 'Segoe UI', 'Arial', sans-serif;
  --font-mono: 'Consolas', 'Monaco', monospace;
  --font-body: var(--font-family);
  --font-display: var(--font-mono);
  --_lab-sans: var(--font-family);
  --_lab-mono: var(--font-mono);

  /* ---- Spacing ---- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;

  /* ---- Shape ---- */
  --radius-sm: 3px;
  --radius-md: 4px;
  --radius-lg: 6px;
  --radius-xl: 8px;
  --radius: var(--radius-lg);

  /* ---- Shadows ---- */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.18);
  --shadow-xl: 0 6px 24px rgba(0, 0, 0, 0.3);

  /* ---- Z-index scale ---- */
  --z-dropdown: 200;
  --z-floating: 1000;
  --z-overlay: 1500;
  --z-dialog: 2100;
  --z-toast: 3000;

  /* ---- Transitions ---- */
  --t-fast: 0.12s;
  --t-base: 0.15s;

  /* ---- Shared layout defaults ---- */
  --max-width: 1140px;
  --header-h: 48px;
  --toolbar-rows: 999;

  /* ---- Canvas / schematic colors (light theme defaults) ---- */
  --canvas-bg: #ffffff;
  --canvas-page-bg: #fdfdfd;
  --canvas-page-border: #b0b0b0;
  --canvas-page-inner-border: #c0c0c0;
  --canvas-page-marker: #b0b0b0;
  --canvas-titleblock-bg: #f8f8f8;
  --canvas-titleblock-border: #a0a0a0;
  --canvas-titleblock-text: #808080;
  --canvas-titleblock-title: #505050;
  --canvas-grid-minor: #ccc;
  --canvas-grid-major: #aaa;
  --canvas-origin: #bbb;
  --canvas-wire: #009900;
  --canvas-bus: #0000c8;
  --canvas-junction: #009900;
  --canvas-no-connect: #000000;
  --canvas-pin: #840000;
  --canvas-pin-name: #000000;
  --canvas-pin-number: #000000;
  --canvas-body: #840000;
  --canvas-fill-bg: #d4e0f3;
  --canvas-reference: #008484;
  --canvas-value: #00c100;
  --canvas-fields: #808080;
  --canvas-label: #008000;
  --canvas-global-label: #c80000;
  --canvas-text: #000000;
  --canvas-hier-sheet-bg: #d4e0f3;
  --canvas-hier-sheet-border: #840084;
  --canvas-hier-sheet-filename: #808080;
  --canvas-block-sheet-bg: #dde9ff;
  --canvas-block-sheet-border: #1f4fbf;
  --canvas-overlay-ratsnest: #cc0000;
  --canvas-overlay-snap-stroke: #ff6600;
  --canvas-overlay-snap-fill: rgba(255, 102, 0, 0.3);
  --canvas-overlay-pin-drag-stroke: #ffcc00;
  --canvas-overlay-pin-drag-fill: rgba(255, 204, 0, 0.35);
  --canvas-overlay-select-inside: #4488ff;
  --canvas-overlay-select-touching: #44cc44;
  --canvas-overlay-tooltip-bg: rgba(0, 0, 0, 0.72);
  --canvas-overlay-tooltip-text: #ffffff;
  --canvas-overlay-net-highlight: #ff0050;
  --canvas-overlay-net-highlight-glow: #ff0050;
  --canvas-overlay-cross-sheet: #0064c8;
  --canvas-overlay-cross-sheet-border: #003c8c;
  --canvas-overlay-erc-error: #c62828;
  --canvas-overlay-erc-warning: #e65100;
  --canvas-overlay-marker-outline: rgba(255, 255, 255, 0.9);
  --canvas-overlay-marker-text: #ffffff;
  --canvas-overlay-remote-text-ghost: #333333;
  --canvas-overlay-presence-fallback: #888888;
  --canvas-overlay-presence-outline: rgba(255, 255, 255, 0.65);
  --canvas-overlay-presence-text: #ffffff;
  --pcb-overlay-preview: #00ffcc;
  --pcb-overlay-preview-fill: rgba(0, 255, 204, 0.08);
  --pcb-overlay-anchor: #ff6666;
  --pcb-overlay-pad-preview: #ffcc66;
  --pcb-overlay-dimension-preview: #ff9100;
  --pcb-overlay-route-blocked: #ff3366;
  --pcb-overlay-route-warning: #ff9900;
  --pcb-overlay-route-shove: #ff8800;
  --pcb-overlay-route-modified: #ffaa33;
  --pcb-overlay-route-walked: #33dd77;
  --pcb-overlay-route-ratline: #ff0000;
  --pcb-overlay-route-status: #ff1744;
  --pcb-overlay-route-status-hint: rgba(80, 80, 80, 0.85);
  --pcb-overlay-point-outline: #ffaa00;
  --pcb-overlay-point-handle: #ffaa00;
  --pcb-overlay-point-handle-fill: rgba(255, 255, 255, 0.9);
  --pcb-overlay-point-edge-insert: #0277bd;
  --pcb-overlay-model-selection-outline: #2a7ddb;

  /* PCB footprint preview canvas background. Matches PcbCommon's default
     canvas clear color so the CSS box never shows a seam. Same in both
     themes: PCB canvases are intentionally always dark. */
  --pcb-preview-bg: #16162a;

  /* Rating-star color (yellow, same in both themes). */
  --rating-star: #f9a825;

  /* ---- Tooltip / subtle-danger tokens ---- */
  --color-danger-subtle: #fff0f0;

  /* Overlay text used on top of translucent-dark-on-canvas scrims
     (3D viewer status/meta/buttons, Gerber viewer status chip, etc.).
     The backdrop is always dark regardless of page theme, so these
     stay light in both themes. */
  --overlay-text: #f2f2f2;
  --overlay-text-dim: #e0e0e0;
  --overlay-text-faint: #d0d0d0;
}

/* ============================================================
 * Dark theme overrides
 * ============================================================ */
[data-theme="dark"] {
  color-scheme: dark;

  --color-primary: #42a5f5;
  --color-primary-hover: #64b5f6;
  --color-primary-active: #90caf9;
  --color-primary-bg: #0d2a4a;
  --color-primary-soft: #133862;

  --color-success: #66bb6a;
  --color-success-text: #81c784;
  --color-success-hover: #81c784;
  --color-success-bg: #1b3a1e;
  --color-success-border: #2e5c30;

  --color-danger: #ef5350;
  --color-danger-text: #ff8a80;
  --color-danger-hover: #f06563;
  --color-danger-bg: #3a1b1b;
  --color-danger-border: #6e2a2a;
  --color-danger-border-soft: #4a2020;

  --color-warning: #ffa726;
  --color-warning-text: #ffb74d;
  --color-warning-hover: #e67e22;
  --color-warning-bg: #3a2a1b;
  --color-warning-border: #5a3f26;

  --color-info: #29b6f6;
  --color-info-text: #4fc3f7;
  --color-info-bg: #0d2a3a;
  --color-info-border: #1e4b5f;

  /* Admin/secondary accent (purple) — dark */
  --color-admin: #ba68c8;
  --color-admin-hover: #ab47bc;
  --color-admin-bg: #2a1a33;

  --text-strong: #f0f0f0;
  --text-primary: #e0e0e0;
  --text-secondary: #b0b0b0;
  --text-muted: #808080;
  --text-faint: #555555;
  --text-on-primary: #ffffff;

  --bg-page: #1e1e1e;
  --bg-body: #181818;
  --bg-subtle: #252525;
  --bg-raised: #2a2a2a;
  --bg-hover: #333333;
  --bg-active: #3a3a3a;
  --bg-primary: var(--bg-body);
  --bg-secondary: var(--bg-subtle);
  --bg-panel: var(--bg-raised);
  --bg-muted: #242424;
  --bg-code: #202124;
  --bg-input: #252525;
  --bg-card: var(--bg-page);
  --bg-card-hover: var(--bg-raised);
  --bg-hover-2: rgba(255, 255, 255, 0.08);
  --bg-selected: var(--color-primary-bg);
  --input-bg: var(--bg-input);
  --panel-bg: var(--bg-page);
  --btn-bg: var(--bg-hover);

  --border-color: #404040;
  --border-strong: #555555;
  --border-subtle: #333333;
  --border: var(--border-color);
  --border-faint: #2d2d2d;
  --border-card: var(--border-subtle);
  --color-border: var(--border-color);
  --color-border-subtle: var(--border-subtle);
  --panel-border: var(--border-color);

  --accent: var(--color-primary);
  --accent-color: var(--color-primary);
  --accent-bg: var(--color-primary);
  --accent-soft: var(--color-primary-bg);
  --accent-warn: var(--color-warning);
  --accent-blue: var(--color-primary);
  --accent-blue-dim: var(--color-primary-active);
  --accent-copper: #d4955a;
  --accent-copper-dim: rgba(212, 149, 90, 0.18);
  --accent-green: var(--color-success);
  --color-error: var(--color-danger);
  --color-text-secondary: var(--text-secondary);

  --font-body: var(--font-family);
  --font-display: var(--font-mono);
  --_lab-sans: var(--font-family);
  --_lab-mono: var(--font-mono);

  --max-width: 1140px;
  --header-h: 48px;
  --toolbar-rows: 999;

  --radius: var(--radius-lg);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 6px 24px rgba(0, 0, 0, 0.7);

  --color-danger-subtle: #3b1f1f;

  /* Canvas / schematic colors (dark theme) */
  --canvas-bg: #1a1a1a;
  --canvas-page-bg: #222222;
  --canvas-page-border: #555555;
  --canvas-page-inner-border: #4a4a4a;
  --canvas-page-marker: #707070;
  --canvas-titleblock-bg: #2a2a2a;
  --canvas-titleblock-border: #606060;
  --canvas-titleblock-text: #a0a0a0;
  --canvas-titleblock-title: #d0d0d0;
  --canvas-grid-minor: #333333;
  --canvas-grid-major: #4a4a4a;
  --canvas-origin: #555555;
  --canvas-wire: #00a000;
  --canvas-bus: #3a7bd5;
  --canvas-junction: #00a000;
  --canvas-no-connect: #5a8eff;
  --canvas-pin: #ff6060;
  --canvas-pin-name: #e0e0e0;
  --canvas-pin-number: #e0e0e0;
  --canvas-body: #ff6060;
  --canvas-fill-bg: #1c2840;
  --canvas-reference: #4dd0e1;
  --canvas-value: #7ed67e;
  --canvas-fields: #a0a0a0;
  --canvas-label: #4caf50;
  --canvas-global-label: #ff5252;
  --canvas-text: #e0e0e0;
  --canvas-hier-sheet-bg: #2a2820;
  --canvas-hier-sheet-border: #c070c0;
  --canvas-hier-sheet-filename: #909090;
  --canvas-block-sheet-bg: #1d314f;
  --canvas-block-sheet-border: #64b5f6;
  --canvas-overlay-ratsnest: #ff6b6b;
  --canvas-overlay-snap-stroke: #ffb74d;
  --canvas-overlay-snap-fill: rgba(255, 183, 77, 0.28);
  --canvas-overlay-pin-drag-stroke: #ffe066;
  --canvas-overlay-pin-drag-fill: rgba(255, 224, 102, 0.26);
  --canvas-overlay-select-inside: #64b5f6;
  --canvas-overlay-select-touching: #66bb6a;
  --canvas-overlay-tooltip-bg: rgba(0, 0, 0, 0.78);
  --canvas-overlay-tooltip-text: #ffffff;
  --canvas-overlay-net-highlight: #ff5c8a;
  --canvas-overlay-net-highlight-glow: #ff5c8a;
  --canvas-overlay-cross-sheet: #42a5f5;
  --canvas-overlay-cross-sheet-border: #90caf9;
  --canvas-overlay-erc-error: #ef5350;
  --canvas-overlay-erc-warning: #ffa726;
  --canvas-overlay-marker-outline: rgba(255, 255, 255, 0.9);
  --canvas-overlay-marker-text: #ffffff;
  --canvas-overlay-remote-text-ghost: #e0e0e0;
  --canvas-overlay-presence-fallback: #b0b0b0;
  --canvas-overlay-presence-outline: rgba(255, 255, 255, 0.65);
  --canvas-overlay-presence-text: #ffffff;
  --pcb-overlay-preview: #00ffcc;
  --pcb-overlay-preview-fill: rgba(0, 255, 204, 0.08);
  --pcb-overlay-anchor: #ff8a80;
  --pcb-overlay-pad-preview: #ffd180;
  --pcb-overlay-dimension-preview: #ffb74d;
  --pcb-overlay-route-blocked: #ff5c8a;
  --pcb-overlay-route-warning: #ffb74d;
  --pcb-overlay-route-shove: #ffb74d;
  --pcb-overlay-route-modified: #ffd180;
  --pcb-overlay-route-walked: #66bb6a;
  --pcb-overlay-route-ratline: #ff6b6b;
  --pcb-overlay-route-status: #ff5c8a;
  --pcb-overlay-route-status-hint: rgba(220, 220, 220, 0.85);
  --pcb-overlay-point-outline: #ffd180;
  --pcb-overlay-point-handle: #ffd180;
  --pcb-overlay-point-handle-fill: rgba(30, 30, 30, 0.92);
  --pcb-overlay-point-edge-insert: #66ccff;
  --pcb-overlay-model-selection-outline: #64b5f6;
}

body {
  font-family: var(--font-family);
  color: var(--text-primary);
}

/* ============================================================
 * Back-to-top button (shared across marketplace/browse pages)
 * ============================================================ */

.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--bg-page);
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}
.back-to-top[hidden] { display: none; }
.back-to-top:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; }

/* Dark-mode hero banner: mute the gradient so it doesn't flash light blue on a dark page */
[data-theme="dark"] .hero-banner {
  background: linear-gradient(135deg, #1a3764 0%, #0d2444 100%);
}

/* ============================================================
 * Scrollbars
 * ============================================================ */

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-subtle); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }
::-webkit-scrollbar-corner { background: var(--bg-subtle); }
* { scrollbar-width: thin; scrollbar-color: var(--border-strong) var(--bg-subtle); }

/* ============================================================
 * Accessibility utilities
 * ============================================================
 */

/* Visually hidden but readable by screen readers. */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}

/* Skip-to-content link: invisible until focused. */
.skip-to-content {
  position: absolute;
  top: -100%;
  left: 8px;
  z-index: 99999;
  padding: 8px 16px;
  background: var(--color-primary);
  color: var(--text-on-primary);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-size: var(--font-md);
  font-weight: 500;
  text-decoration: none;
  transition: top 0.1s;
}
.skip-to-content:focus {
  top: 0;
  outline: 3px solid var(--color-primary-active);
  outline-offset: 2px;
}

/* ============================================================
 * Canonical button classes
 * ============================================================
 * Usage: <button class="btn btn-primary">Label</button>
 * Modifiers: .btn-sm / .btn-lg / .btn-block
 */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: var(--font-md);
  font-weight: 500;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast);
  -webkit-user-select: none;
          user-select: none;
}
.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}
.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--text-on-primary);
  border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }
.btn-primary:active { background: var(--color-primary-active); border-color: var(--color-primary-active); }

.btn-success {
  background: var(--color-success);
  color: var(--text-on-primary);
  border-color: var(--color-success);
}
.btn-success:hover { background: var(--color-success-hover); border-color: var(--color-success-hover); }

.btn-danger {
  background: var(--color-danger);
  color: var(--text-on-primary);
  border-color: var(--color-danger);
}
.btn-danger:hover { background: var(--color-danger-hover); border-color: var(--color-danger-hover); }

.btn-danger-outline {
  background: var(--bg-page);
  color: var(--color-danger);
  border: 1px solid var(--color-danger-border);
}
.btn-danger-outline:hover {
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
}

.btn-outline {
  background: var(--bg-page);
  color: var(--text-secondary);
  border: 1px solid var(--border-strong);
}
.btn-outline:hover { background: var(--bg-subtle); border-color: var(--text-muted); }
.btn-outline.active {
  background: var(--color-primary-bg);
  border-color: var(--color-primary);
  color: var(--color-primary);
  font-weight: 600;
}

.btn-secondary {
  background: var(--bg-subtle);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover { background: var(--bg-hover); }

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

/* ---- Size modifiers ---- */
.btn-sm { padding: 4px 10px; font-size: var(--font-sm); }
.btn-lg { padding: 10px 20px; font-size: var(--font-lg); font-weight: 600; }
.btn-block { display: flex; width: 100%; }
.btn-xs { padding: 2px 6px; font-size: var(--font-xs); }
.btn-icon {
  width: 28px; height: 28px;
  padding: 0; gap: 0;
  border-color: transparent;
}
.btn-icon.btn-sm { width: 24px; height: 24px; font-size: var(--font-sm); }
.btn-warning {
  background: var(--color-warning);
  color: var(--text-on-primary);
  border-color: var(--color-warning);
}
.btn-warning:hover { background: var(--color-warning-hover); border-color: var(--color-warning-hover); }

/* ============================================================
 * Shared site header
 * ============================================================ */

.header {
  background: var(--bg-page);
  border-bottom: 1px solid var(--border-color);
  padding: 0 24px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 0;
}
.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
  min-width: 0;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.logo {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  flex-shrink: 0;
}
.logo span {
  color: var(--text-muted);
  font-weight: 400;
}

.pcbw-search-form {
  flex: 1;
  max-width: 480px;
  position: relative;
}
.pcbw-search-input {
  width: 100%;
  padding: 5px 12px;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  font-size: var(--font-md);
  background: var(--bg-subtle);
  color: var(--text-primary);
  outline: none;
  font-family: inherit;
  transition: border-color var(--t-fast), background var(--t-fast);
}
.pcbw-search-input:focus {
  border-color: var(--color-primary);
  background: var(--bg-page);
  box-shadow: 0 0 0 2px rgba(21, 101, 192, 0.15);
}
.search-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--bg-page);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  max-height: 480px;
  overflow-y: auto;
  z-index: 10000;
}
.search-result {
  display: block;
  padding: 8px 12px;
  cursor: pointer;
  text-decoration: none;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-subtle);
  font-size: var(--font-md);
}
.search-result:last-child { border-bottom: none; }
.search-result:hover,
.search-result.active {
  background: var(--bg-selected);
}
.search-result-name { font-weight: 600; }
.search-result-kind {
  font-size: var(--font-xs);
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-right: 6px;
}
.search-result-owner {
  font-size: var(--font-sm);
  color: var(--text-muted);
  margin-left: 4px;
}
.search-result-desc {
  font-size: var(--font-sm);
  color: var(--text-secondary);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.search-result-group {
  font-size: var(--font-sm);
  padding: 6px 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 700;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-subtle);
}
.search-dropdown-empty {
  padding: 12px;
  color: var(--text-muted);
  font-size: var(--font-md);
  text-align: center;
}

.pcbw-nav-link {
  padding: 6px 10px;
  font-size: var(--font-md);
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  white-space: nowrap;
  transition: background var(--t-fast), color var(--t-fast);
}
.pcbw-nav-link:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.pcbw-nav-link.active {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.pcbw-notif-btn {
  background: none;
  border: none;
  padding: 4px 6px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--font-xl);
  line-height: 1;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.pcbw-notif-btn:hover { background: var(--bg-subtle); }
.pcbw-notif-btn.has-unread::after {
  content: attr(data-unread);
  position: absolute;
  top: -4px;
  right: -5px;
  min-width: 14px;
  height: 14px;
  padding: 0 4px;
  box-sizing: border-box;
  border-radius: 999px;
  background: var(--color-danger);
  color: var(--text-on-primary);
  font-size: var(--font-xs);
  font-weight: 700;
  line-height: 14px;
  text-align: center;
  box-shadow: 0 0 0 2px var(--bg-page);
}
.pcbw-notif-dropdown {
  display: none;
  position: fixed;
  width: min(360px, calc(100vw - 24px));
  max-height: min(520px, calc(100vh - 72px));
  overflow: hidden;
  background: var(--bg-page);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  z-index: 2147483647;
}
.pcbw-notif-dropdown.open {
  display: flex;
  flex-direction: column;
}
.pcbw-notif-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: var(--font-md);
  font-weight: 700;
}
.pcbw-notif-list {
  overflow: auto;
  max-height: 400px;
}
.pcbw-notif-empty,
.pcbw-notif-loading {
  padding: 18px 12px;
  color: var(--text-muted);
  font-size: var(--font-md);
  text-align: center;
}
.pcbw-notif-row {
  display: block;
  width: 100%;
  padding: 10px 12px;
  border: 0;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-page);
  color: var(--text-primary);
  text-align: left;
  font-family: inherit;
  cursor: pointer;
}
.pcbw-notif-row:hover { background: var(--bg-subtle); }
.pcbw-notif-row.unread { background: var(--color-primary-bg); }
.pcbw-notif-row-title {
  display: block;
  font-size: var(--font-md);
  line-height: 1.35;
}
.pcbw-notif-row-time {
  display: block;
  margin-top: 4px;
  color: var(--text-muted);
  font-size: var(--font-sm);
}
.pcbw-notif-footer {
  padding: 8px;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-page);
}
.pcbw-notif-mark-all {
  width: 100%;
  border: 0;
  background: none;
  color: var(--color-primary);
  padding: 7px 8px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-md);
  font-weight: 600;
}
.pcbw-notif-mark-all:hover { background: var(--bg-subtle); }

.user-avatar-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--text-on-primary);
  border: none;
  cursor: pointer;
  font-size: var(--font-sm);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.user-avatar-btn:hover { opacity: 0.88; }
.user-menu-dropdown {
  display: none;
  position: fixed;
  background: var(--bg-page);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  min-width: 180px;
  z-index: 2147483647;
  padding: 4px 0;
}
.user-menu-dropdown a {
  display: block;
  padding: 8px 16px;
  font-size: var(--font-md);
  color: var(--text-primary);
  text-decoration: none;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  font-family: inherit;
  cursor: pointer;
}
.user-menu-dropdown a:hover { background: var(--bg-subtle); }
.user-menu-dropdown a.active {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}
.user-menu-admin {
  color: var(--color-admin) !important;
  font-weight: 600;
}
.user-menu-logout { color: var(--color-danger) !important; }
.user-menu-sep {
  height: 1px;
  background: var(--border-subtle);
  margin: 4px 0;
}

.verify-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9000;
  background: var(--color-warning-bg);
  border-bottom: 2px solid var(--color-warning);
  padding: 12px 24px;
  text-align: center;
  font-size: var(--font-lg);
  color: var(--color-warning-text);
}
.verify-banner-link {
  color: var(--color-primary);
  text-decoration: underline;
  margin-left: 8px;
}
.banner-message { font-weight: 600; }
.banner-message-success { color: var(--color-success-text); }
.banner-message-warning { color: var(--color-warning-text); }
.banner-message-error { color: var(--color-danger-text); }
.prelaunch-banner {
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 8px 24px;
  font-size: 12.5px;
  line-height: 1.4;
  text-align: center;
}
.prelaunch-banner strong { color: var(--text-strong); }
.prelaunch-banner em {
  font-style: normal;
  font-weight: 600;
}

@media (max-width: 600px) {
  .pcbw-search-form { max-width: 140px; }
  .pcbw-nav-link { display: none; }
}

/* ============================================================
 * Form controls
 * ============================================================ */

.input,
.form-input,
.form-select,
.form-textarea {
  display: inline-block;
  width: 100%;
  padding: 6px 10px;
  font-size: var(--font-md);
  line-height: 1.4;
  color: var(--text-primary);
  background: var(--bg-page);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--t-fast);
  box-sizing: border-box;
  font-family: inherit;
}
.input:focus,
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
}
.form-textarea {
  min-height: 64px;
  resize: vertical;
}

.form-input-sm { padding: 3px 6px; font-size: var(--font-sm); }

.form-label {
  display: block;
  font-size: var(--font-sm);
  color: var(--text-muted);
  margin-bottom: 3px;
}

/* ============================================================
 * Badges / pill labels
 * ============================================================ */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 1px 8px;
  font-size: var(--font-xs);
  font-weight: 500;
  border-radius: 10px;
  background: var(--bg-active);
  color: var(--text-secondary);
  white-space: nowrap;
}
.badge-success,
.badge-public,
.badge-in-library,
.badge-pins { background: var(--color-success-bg); color: var(--color-success-text); }
.badge-warning,
.badge-forked,
.badge-license { background: var(--color-warning-bg); color: var(--color-warning-text); }
.badge-muted,
.badge-private { background: var(--bg-active); color: var(--text-muted); }

/* Marketplace semantic badge aliases */
.badge-category { background: var(--color-primary-bg); color: var(--color-primary); }
.badge-pins { font-family: var(--font-mono); }

/* Star rating */
.stars { letter-spacing: 1px; font-size: 14px; white-space: nowrap; }
.star-full { color: var(--rating-star); }
.star-empty { color: var(--text-faint); }
.rating-interactive .star-full,
.rating-interactive .star-empty {
  font-size: 22px;
  cursor: pointer;
  transition: transform 0.1s;
}
.rating-interactive .star-full:hover,
.rating-interactive .star-empty:hover {
  transform: scale(1.15);
}

/* ============================================================
 * Catalog controls — shared across marketplace list pages
 * (symbols, footprints, parts, projects, part-new)
 * ============================================================ */

.catalog-search {
  flex: 1;
  min-width: 220px;
  position: relative;
}
.catalog-search input,
.catalog-filter,
.catalog-num-filter {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  background: var(--bg-raised);
  font-family: inherit;
  outline: none;
}
.catalog-search input,
.catalog-num-filter {
  color: var(--text-primary);
  box-sizing: border-box;
}
.catalog-filter,
.catalog-num-filter {
  font-size: var(--font-md);
}
.catalog-search input {
  width: 100%;
  padding: 9px 14px 9px 36px;
  font-size: var(--font-lg);
  transition: border-color var(--t-base), background var(--t-base);
}
.catalog-search input:focus,
.catalog-filter:focus,
.catalog-num-filter:focus { border-color: var(--color-primary); }
.catalog-search input:focus {
  background: var(--bg-page);
}
.catalog-search input:focus-visible,
.catalog-filter:focus-visible {
  outline: 2px solid var(--color-primary);
}
.catalog-search input:focus-visible {
  outline-offset: -1px;
}
.catalog-search-icon {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: var(--font-lg);
  pointer-events: none;
}

.catalog-filter {
  padding: 9px 14px;
  cursor: pointer;
  color: var(--text-secondary);
}
.catalog-filter:focus-visible {
  outline-offset: 1px;
}

.catalog-num-filter {
  width: 100px;
  padding: 9px 10px;
}

.catalog-scope-toggle {
  display: inline-flex;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--bg-raised);
}
.catalog-scope-toggle button {
  padding: 9px 14px;
  font-size: var(--font-md);
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-weight: 500;
}
.catalog-scope-toggle button.active {
  background: var(--color-primary);
  color: var(--text-on-primary);
}
.catalog-scope-toggle button + button {
  border-left: 1px solid var(--border-color);
}

.catalog-chip-group {
  display: inline-flex;
  gap: 6px;
  flex-wrap: wrap;
  align-items: center;
}
.catalog-chip {
  display: inline-flex;
  align-items: center;
  padding: 5px 11px;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  font-size: var(--font-base);
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-raised);
  cursor: pointer;
  user-select: none;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}
.catalog-chip:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.catalog-chip.active {
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.catalog-chip:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ============================================================
 * Catalog page chrome — shared by marketplace, symbols,
 * footprints, parts, and projects browse pages
 * ============================================================ */

/* Hero banner (light-mode; dark-mode override already above) */
.hero-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-active) 100%);
  color: var(--text-on-primary);
  padding: 40px 24px 36px;
  text-align: center;
}
.hero-banner h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}
.hero-banner p {
  font-size: 15px;
  opacity: 0.9;
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.5;
}
@media (max-width: 600px) {
  .hero-banner h1 { font-size: 22px; }
  .hero-banner p { font-size: 13px; }
}

/* Search/filter toolbar */
.toolbar-section {
  background: var(--bg-page);
  border-bottom: 1px solid var(--border-subtle);
  padding: 14px 24px 10px;
}
.toolbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toolbar-inner.toolbar-flat {
  flex-direction: row;
  flex-wrap: wrap;
}
.toolbar-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}
@media (max-width: 600px) {
  .toolbar-row { flex-direction: column; align-items: stretch; }
}

/* Results count + clear-filters */
.results-info {
  max-width: 1200px;
  margin: 14px auto 0;
  padding: 0 24px;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.results-clear {
  background: none;
  border: none;
  color: var(--color-primary);
  font-size: 13px;
  cursor: pointer;
  padding: 4px 8px;
}
.results-clear:hover { text-decoration: underline; }
.results-clear:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Infinite scroll chrome */
.infinite-sentinel { height: 1px; width: 100%; }
.infinite-loader {
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
  padding: 16px 0 30px;
}
.load-more-wrap { text-align: center; padding: 24px; }

/* License filter chip-group label */
.license-chips-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-right: 2px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  font-weight: 600;
}

/* Card preview area */
.card-preview {
  position: relative;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 150px;
  overflow: hidden;
  padding: 8px;
}
.card-preview canvas {
  display: block;
  width: 100%;
  height: 140px;
  object-fit: contain;
}
.card-preview .unit-grid {
  display: grid;
  gap: 4px;
  align-items: center;
  justify-items: center;
  width: 100%;
  height: 140px;
}
.card-preview .unit-grid.cols-1 { grid-template-columns: 1fr; }
.card-preview .unit-grid.cols-2 { grid-template-columns: 1fr 1fr; }
.card-preview .unit-grid canvas { width: 100%; height: 100%; object-fit: contain; }
.card-preview .preview-placeholder { color: var(--text-faint); font-size: 32px; }
.card-preview .preview-unavailable {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-align: center;
  text-transform: uppercase;
}
.card-preview .preview-spinner {
  width: 22px;
  height: 22px;
  border: 3px solid var(--border-subtle);
}
.card-model-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 3px 8px;
  background: rgba(0, 0, 0, 0.55);
  color: var(--text-on-primary);
  font-size: 11px;
  font-weight: 600;
  border-radius: 10px;
  letter-spacing: 0.02em;
  backdrop-filter: blur(4px);
  pointer-events: none;
  z-index: 1;
}
.card-model-badge.zero { background: rgba(0, 0, 0, 0.35); opacity: 0.85; }

/* Dual-preview strip (parts cards) */
.card-previews {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
  min-height: 100px;
}
.card-preview-half {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  min-height: 100px;
  overflow: hidden;
}
.card-preview-half:first-child { border-right: 1px solid var(--border-subtle); }
.card-preview-half canvas { display: block; width: 100%; height: 90px; object-fit: contain; }
.card-preview-label {
  font-size: 9px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-align: center;
  margin-top: 4px;
}
.card-preview-half-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

/* Card body typography */
.card-body { padding: 14px 16px 12px; }
.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
}
.card-slug {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-word;
  font-family: var(--font-mono);
  line-height: 1.3;
}
.card-slug .slug-owner { color: var(--color-primary); }
.card-slug .slug-path { color: var(--text-muted); }
.card-slug .slug-name { color: var(--text-primary); }
.card-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-word;
  line-height: 1.3;
}
.card-author { font-size: 12px; color: var(--text-muted); margin-top: 3px; }
.card-library { font-size: 11px; color: var(--text-muted); margin-top: 1px; font-family: var(--font-mono); }
.card-owner { font-size: 12px; color: var(--color-primary); margin-top: 3px; font-family: var(--font-mono); }
.card-desc {
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.45;
  margin-top: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-attribution { font-size: 12px; color: var(--text-muted); line-height: 1.35; margin-top: 8px; }
.card-fork { font-size: 12px; color: var(--text-muted); line-height: 1.35; margin-top: 8px; }
.card-fork a { color: var(--color-primary); text-decoration: none; font-family: var(--font-mono); }
.card-fork a:hover { text-decoration: underline; }
.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
  font-size: 12px;
  color: var(--text-muted);
  align-items: center;
}
.card-meta-item { display: inline-flex; align-items: center; gap: 3px; }
.card-specs { font-size: 12px; color: var(--text-secondary); margin-top: 6px; line-height: 1.5; }
.card-spec-row { display: flex; gap: 12px; flex-wrap: wrap; }
.card-spec-item { display: inline-flex; align-items: center; gap: 3px; }
.card-spec-label { color: var(--text-muted); font-size: 11px; }

/* Version chip */
.ver-tag {
  font-family: var(--font-mono);
  background: var(--color-primary-bg);
  color: var(--color-primary);
  padding: 2px 7px;
  border-radius: 3px;
  font-size: 11px;
  font-weight: 500;
}

/* Datasheet link */
.datasheet-link { color: var(--color-primary); text-decoration: none; font-size: 12px; }
.datasheet-link:hover { text-decoration: underline; }

/* Catalog grid containers */
:where(.symbol-grid, .fp-grid, .part-grid, .project-grid) {
  max-width: 1200px;
  padding: 0 24px;
  display: grid;
  gap: 16px;
}
.symbol-grid {
  margin: 14px auto 40px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
@media (max-width: 1199px) { .symbol-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 899px)  { .symbol-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 599px)  { .symbol-grid { grid-template-columns: 1fr; } }

.fp-grid {
  margin: 16px auto 40px;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}
@media (max-width: 600px) { .fp-grid { grid-template-columns: 1fr; } }

.part-grid,
.project-grid {
  margin: 14px auto 40px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
@media (max-width: 1199px) {
  .part-grid,
  .project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 699px) {
  .part-grid,
  .project-grid { grid-template-columns: 1fr; }
}

/* Catalog card base styles */
.symbol-card,
.fp-card,
.part-card,
.project-card {
  background: var(--bg-page);
  border-radius: 10px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow 0.2s, border-color 0.2s, transform 0.15s;
  color: inherit;
  text-decoration: none;
  display: block;
}
.symbol-card:hover,
.fp-card:hover,
.part-card:hover,
.project-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}
.symbol-card:focus-visible,
.fp-card:focus-visible,
.part-card:focus-visible,
.project-card:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ============================================================
 * Panels / section helpers
 * ============================================================ */

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--border-color);
  font-size: var(--font-md);
  font-weight: 600;
  color: var(--text-primary);
  flex-shrink: 0;
}
.panel-empty {
  padding: var(--space-5) var(--space-4);
  color: var(--text-muted);
  text-align: center;
  font-style: italic;
  font-size: var(--font-base);
}

/* ============================================================
 * Message / alert text
 * ============================================================ */

.msg { font-size: var(--font-base); margin-top: var(--space-1); }
.msg.ok { color: var(--color-success); }
.msg.err, .msg.error { color: var(--color-danger); }
.msg.warn { color: var(--color-warning); }

/* ============================================================
 * Auth card — shared pattern for login / reset-password /
 * invite / verify-email pages
 * ============================================================
 * Centered card on a subtle page background. Consumers put the
 * logo, title, subtitle, form fields (using standard .form-input
 * or bare inputs styled via `.auth-card input`), and a primary
 * button (.btn .btn-primary .btn-block, or bare .auth-btn) inside
 * a <div class="auth-card">. All colors come from tokens so
 * [data-theme="dark"] works automatically.
 */

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-subtle);
  padding: var(--space-4);
}

.auth-card {
  background: var(--bg-page);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: var(--space-6);
  width: 100%;
  max-width: 380px;
  box-sizing: border-box;
  color: var(--text-primary);
}

.auth-card .auth-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
  letter-spacing: -0.5px;
}
.auth-card .auth-logo span { color: var(--text-muted); font-weight: 400; }

.auth-card .auth-subtitle {
  font-size: var(--font-md);
  color: var(--text-muted);
  margin-bottom: var(--space-5);
}

.auth-card .auth-tabs {
  display: flex;
  margin-bottom: var(--space-4);
  border-bottom: 2px solid var(--border-color);
}
.auth-card .auth-tabs button {
  flex: 1;
  padding: var(--space-2);
  background: none;
  border: none;
  font-size: var(--font-lg);
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  font-family: inherit;
}
.auth-card .auth-tabs button.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.auth-card .form-group { margin-bottom: var(--space-3); }
.auth-card .form-group label {
  display: block;
  font-size: var(--font-base);
  color: var(--text-secondary);
  margin-bottom: var(--space-1);
  font-weight: 500;
}
.auth-card .form-group input {
  width: 100%;
  padding: var(--space-2) 10px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  font-size: var(--font-lg);
  background: var(--bg-page);
  color: var(--text-primary);
  box-sizing: border-box;
  font-family: inherit;
}
.auth-card .form-group input:focus {
  outline: none;
  border-color: var(--color-primary);
}
.auth-card .checkbox-group {
  display: grid;
  grid-template-columns: 18px 1fr;
  align-items: start;
  gap: 10px;
  margin: var(--space-3) 0;
  color: var(--text-secondary);
  font-size: var(--font-base);
  line-height: 1.4;
}
.auth-card .checkbox-group input {
  width: 18px;
  height: 18px;
  margin-top: 1px;
  accent-color: var(--color-primary);
}
.auth-card .checkbox-group a {
  font-weight: 500;
}

/* Full-width primary button tailored for auth forms.
 * Use either <button class="btn btn-primary btn-block"> or
 * <button class="auth-btn"> for convenience. */
.auth-card .auth-btn {
  width: 100%;
  padding: 10px;
  background: var(--color-primary);
  color: var(--text-on-primary);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-lg);
  cursor: pointer;
  font-weight: 500;
  margin-top: var(--space-2);
  font-family: inherit;
  transition: background var(--t-fast);
}
.auth-card .auth-btn:hover { background: var(--color-primary-hover); }
.auth-card .auth-btn:disabled {
  background: var(--text-muted);
  cursor: not-allowed;
}

.auth-card a {
  color: var(--color-primary);
  text-decoration: none;
}
.auth-card a:hover { text-decoration: underline; }

.auth-card .error-msg {
  color: var(--color-danger);
  font-size: var(--font-base);
  margin-top: var(--space-2);
  display: none;
}
.auth-card .error-msg.visible { display: block; }

.auth-card .info-msg {
  color: var(--color-primary);
  font-size: var(--font-base);
  margin-top: var(--space-2);
  display: none;
}
.auth-card .info-msg.visible { display: block; }

.auth-card .success-msg {
  color: var(--color-success);
  font-size: var(--font-md);
  margin-top: var(--space-3);
  display: none;
  text-align: center;
}
.auth-card .success-msg.visible { display: block; }

.auth-card .auth-divider {
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-color);
}

/* Spinner used on verify-email while we wait for the server. */
.auth-spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--border-color);
}

/* Small note beneath auth form (e.g. "Forgot password?" link row). */
.auth-card .auth-note {
  margin-top: var(--space-3);
  font-size: var(--font-base);
  text-align: center;
}
.auth-card .auth-note + .auth-note { margin-top: var(--space-1); }

/* ============================================================
 * Toast (non-blocking notifications) — top-right per UX Vision §14.1
 * ============================================================
 * Pages add <div class="toast-container" id="toast-container"></div>
 * and call a local showToast(msg, type) that appends a .toast child.
 * Positioned below the site header (48–56 px) so toasts are not
 * obscured by the nav bar on pages that load /editor/header.js.
 */
.toast-container {
  position: fixed;
  top: 60px;
  right: 16px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  pointer-events: none;
}
.toast {
  background: var(--bg-active);
  color: var(--text-primary);
  padding: 10px 16px;
  border-radius: 6px;
  margin-bottom: 0;
  font-size: 13px;
  box-shadow: var(--shadow-md);
  pointer-events: auto;
  max-width: 400px;
  word-break: break-word;
  opacity: 0;
  transform: translateX(20px);
  animation: toast-slide-in var(--t-fast) forwards;
}
/* Semantic variants — two naming conventions:
   header.js uses .toast-<type>; per-page showToast helpers use .<type>. */
.toast.toast-error,
.toast.error  {
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
  border: 1px solid var(--color-danger-border);
}
.toast.toast-success,
.toast.success {
  background: var(--color-success-bg);
  color: var(--color-success-text);
  border: 1px solid var(--color-success-border);
}
.toast.toast-warning,
.toast.toast-warn,
.toast.warning,
.toast.warn {
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
  border: 1px solid var(--color-warning-border);
}
.toast.toast-info,
.toast.info {
  background: var(--color-info-bg);
  color: var(--color-info-text);
  border: 1px solid var(--color-info-border);
}
.toast.toast-out { animation: toast-slide-out var(--t-fast) forwards; }
@keyframes toast-slide-in { to { opacity: 1; transform: translateX(0); } }
@keyframes toast-slide-out { to { opacity: 0; transform: translateX(20px); } }

/* ============================================================
 * Theme toggle button — visible in site header for all users
 * ============================================================ */
.theme-toggle {
  background: none;
  border: none;
  padding: 4px;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.theme-toggle:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* ============================================================
 * Utility classes — for sparing use in JS-generated markup
 * ============================================================ */

.u-hidden { display: none !important; }
.u-mono { font-family: var(--font-mono); }
.u-muted { color: var(--text-muted); }

/* ============================================================
 * Empty state — shared across marketplace / dashboard pages
 * ============================================================ */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-state h3 {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 600;
}
.empty-state p {
  font-size: 13px;
  line-height: 1.5;
  margin-bottom: 12px;
}

/* ============================================================
 * Loading state — shared across marketplace / dashboard pages
 * ============================================================ */
.loading-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-muted);
  font-size: 14px;
}
.loading-state::before {
  content: '';
  display: block;
  width: 28px;
  height: 28px;
  --spinner-duration: 0.7s;
  border: 3px solid var(--border-subtle);
  margin: 0 auto 12px;
}
.card-preview .preview-spinner,
.auth-spinner,
.loading-state::before {
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin var(--spinner-duration, 0.8s) linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
 * Tab bar — shared by symbol-detail, footprint-detail, home
 * ============================================================
 * Pages that need per-element tweaks (e.g. .tab-count-pill) add
 * their own rules on top of these base styles.
 */
.tab-bar {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: 0;
  flex-wrap: wrap;
}
.tab {
  padding: 10px 16px;
  font-size: var(--font-md);
  font-weight: 500;
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color var(--t-fast), border-color var(--t-fast);
  white-space: nowrap;
  text-decoration: none;
  display: inline-block;
}
.tab:hover { color: var(--text-primary); }
.tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}
.tab:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ============================================================
 * Admin nav tabs — shared by admin.html, admin-analytics.html,
 * admin-bugs.html. Colors use admin purple accent.
 * ============================================================ */
.admin-tabs {
  display: flex;
  gap: 4px;
}
.admin-tab {
  padding: 6px 14px;
  font-size: var(--font-md);
  color: var(--text-secondary);
  background: none;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
}
.admin-tab:hover { background: var(--bg-hover); color: var(--text-primary); }
.admin-tab.active {
  background: var(--color-admin-bg);
  color: var(--color-admin);
  border-color: var(--color-admin);
}
.admin-tab:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

/* Allow overlay elements to be hidden via the HTML hidden attribute.
 * Without this rule, the element's display:flex CSS declaration wins
 * over the user-agent [hidden]{display:none} rule. */
.marketplace-overlay[hidden],
.confirm-dialog-overlay[hidden] { display: none; }

/* ============================================================
 * Diff-overlay color tokens — used by editor-revision-diff.js
 * ============================================================
 * Default (light) values match the hardcoded hex literals the
 * canvas used before. Dark-theme overrides produce softer tones
 * that read well on the dark canvas background (#1e1e1e).
 * The "bg" variants are semi-transparent fills for symbol rects.
 */
:root {
  --diff-added:        #2e7d32;
  --diff-removed:      #c62828;
  --diff-modified:     #ef6c00;
  --diff-added-bg:     #c8e6c9;
  --diff-removed-bg:   #ffcdd2;
  --diff-modified-bg:  #ffe0b2;
  --diff-neutral-wire: #455a64;
  --diff-neutral-bus:  #1565c0;
  --diff-neutral-hier: #6a1b9a;
  --diff-neutral-label:#00695c;
  --diff-neutral-sym:  #616161;
  --diff-neutral-sym-bg:#e0e0e0;
  --diff-canvas-bg:    #ffffff;
  --diff-text:         #222222;
}
[data-theme="dark"] {
  --diff-added:        #66bb6a;
  --diff-removed:      #ef5350;
  --diff-modified:     #ffa726;
  --diff-added-bg:     #1b3a1e;
  --diff-removed-bg:   #3a1b1b;
  --diff-modified-bg:  #3a2a1b;
  --diff-neutral-wire: #78909c;
  --diff-neutral-bus:  #64b5f6;
  --diff-neutral-hier: #ce93d8;
  --diff-neutral-label:#80cbc4;
  --diff-neutral-sym:  #9e9e9e;
  --diff-neutral-sym-bg:#3a3a3a;
  --diff-canvas-bg:    #1e1e1e;
  --diff-text:         #e0e0e0;
}

/* ============================================================
 * Project card thumbnails — shared by /projects and /<owner>/projects
 * ============================================================ */
.card-thumbnail {
  height: 160px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border-color);
  overflow: hidden;
  flex-shrink: 0;
}
.card-thumb-cell {
  position: relative;
  overflow: hidden;
  background: var(--bg-subtle);
}
.card-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--bg-card);
  position: absolute;
  inset: 0;
  z-index: 2;
}
.card-thumb-fallback {
  align-items: center;
  color: var(--text-faint);
  display: flex;
  font-size: 34px;
  font-weight: 700;
  inset: 0;
  justify-content: center;
  position: absolute;
  text-transform: uppercase;
  z-index: 0;
}
.card-thumb-label {
  position: absolute;
  bottom: 8px;
  left: 10px;
  right: 10px;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  opacity: 0.9;
  letter-spacing: 0.3px;
  z-index: 1;
  text-transform: uppercase;
}

/* ============================================================
 * Confirm dialog — shared overlay + centered dialog shell.
 * Used by editor/ui/confirm-dialog.js and standalone detail pages.
 * Button styling comes from .btn / .btn-danger / .btn-outline.
 * Colors are token-driven so dark mode is automatic.
 * ============================================================ */
.confirm-dialog-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 3100;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}
.confirm-dialog {
  background: var(--bg-page);
  color: var(--text-primary);
  border-radius: 8px;
  box-shadow: var(--shadow-xl);
  width: 460px;
  max-width: calc(100vw - 40px);
  max-height: calc(100vh - 80px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.confirm-dialog-header {
  padding: 14px 18px 0;
}
.confirm-dialog-title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  word-break: break-word;
}
.confirm-dialog-body {
  padding: 10px 18px 16px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-secondary);
  overflow-y: auto;
}
.confirm-dialog-lead {
  margin: 0 0 10px 0;
  color: var(--text-primary);
}
.confirm-dialog-lead strong {
  font-weight: 600;
}
.confirm-dialog-bullets {
  margin: 0;
  padding-left: 18px;
}
.confirm-dialog-bullets li {
  margin-bottom: 6px;
}
.confirm-dialog-bullets li:last-child {
  margin-bottom: 0;
}
.confirm-dialog-body code {
  background: var(--bg-subtle);
  border-radius: 3px;
  padding: 1px 4px;
  font-family: var(--font-mono, ui-monospace, SFMono-Regular, monospace);
  font-size: 12px;
}
.confirm-dialog-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 18px 14px;
  border-top: 1px solid var(--border-subtle);
}

/* ============================================================
 * Marketplace overlay/dialog shell — shared between the editor
 * (editor.css duplicates these for historical reasons) and
 * standalone marketplace pages (symbols.html, footprints.html).
 * ============================================================ */
.marketplace-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 3000;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}
.marketplace-dialog {
  background: var(--bg-page);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-xl);
  width: 460px;
  max-width: calc(100vw - 40px);
  max-height: calc(100vh - 80px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.marketplace-dialog-title {
  padding: 16px 18px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}
.marketplace-dialog-body {
  padding: 12px 18px 16px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--text-secondary);
  overflow-y: auto;
}
.marketplace-dialog-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 18px 14px;
  border-top: 1px solid var(--border-subtle);
}

/* ---- Form helpers used inside dialogs ---- */
.form-row { margin-bottom: 12px; }
.form-row:last-child { margin-bottom: 0; }
.form-field-error {
  display: none;
  font-size: 11px;
  color: var(--color-danger);
  margin-top: 3px;
}
.form-radio-group {
  display: flex;
  gap: 16px;
}
.form-radio-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-primary);
}

/* ============================================================
 * Canonical page footer
 * ============================================================ */
.page-footer {
  border-top: 1px solid var(--border-color);
  padding: 16px 20px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}
.page-footer-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.page-footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: center;
}
.page-footer a {
  color: inherit;
  text-decoration: none;
}
.page-footer a:hover {
  color: var(--text-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-footer-copy {
  font-size: 12px;
  color: var(--text-muted);
}

/* ---- Two-pane template picker (used on /new and modals) ---- */
.template-picker {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 14px;
  min-height: 300px;
}
.template-list {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-subtle);
  overflow-y: auto;
  max-height: 360px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.template-list-item {
  padding: 10px 12px;
  cursor: pointer;
  border-bottom: 1px solid var(--border-color);
  transition: background var(--t-fast);
}
.template-list-item:last-child { border-bottom: none; }
.template-list-item:hover { background: var(--bg-active); }
.template-list-item.active {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}
.template-list-item .tli-name {
  font-size: 13px;
  font-weight: 600;
  color: inherit;
}
.template-list-item .tli-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}
.template-list-item.active .tli-meta { color: var(--color-primary); opacity: 0.85; }
.template-detail {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-page);
  min-height: 260px;
}
.template-detail-empty {
  color: var(--text-muted);
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}
.template-detail-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}
.template-detail-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}
.template-loading,
.template-empty-msg {
  color: var(--text-muted);
  font-size: 13px;
  padding: 20px;
  text-align: center;
}

/* ============================================================
 * Detail page utilities — shared across marketplace detail pages
 * (symbol-detail, footprint-detail, part-detail)
 * ============================================================ */

.page-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 24px;
}
@media (max-width: 600px) {
  .page-container { padding: 12px; }
}

/* ============================================================
 * Unit grid — symbol preview with multiple unit columns
 * (symbol-detail and marketplace card previews)
 * ============================================================ */

.unit-grid {
  display: grid;
  gap: 12px;
  align-items: center;
  justify-items: center;
}
.unit-grid.cols-1 { grid-template-columns: 1fr; }
.unit-grid.cols-2 { grid-template-columns: 1fr 1fr; }
.unit-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.unit-grid canvas {
  background: var(--bg-page);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
}
.unit-label {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 2px;
}