/* Mortar Rack Design — Patriotic Dark Theme */

:root {
  --bg: #1A120B;
  --bg-overlay: rgba(26, 18, 11, 0.88);
  --surface: rgba(33, 23, 16, 0.92);
  --surface-hover: rgba(50, 35, 24, 0.95);
  --accent: #CC2936;
  --accent-secondary: #E8E8E8;
  --blue: #2B4C7E;
  --blue-light: #5A82B4;
  --red: #CC2936;
  --red-light: #E85D68;
  --white: #F0EDED;
  --text: #F0EDED;
  --text-secondary: #A09A94;
  --border: #3D2A1A;
  --border-light: #5A3D28;
  --radius: 8px;
  --radius-sm: 4px;
}

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

html, body {
  height: 100%;
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  overflow: hidden;
  background: var(--bg);
}

/* American flag background with dark rustic overlay */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('../img/flag.svg') center / cover no-repeat;
  opacity: 0.35;
  z-index: 0;
  pointer-events: none;
  filter: sepia(0.3) saturate(0.5) contrast(0.9);
}

body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(43, 76, 126, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 80%, rgba(204, 41, 54, 0.04) 0%, transparent 60%);
  z-index: 0;
  pointer-events: none;
}

/* ---- Top Bar ---- */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 48px;
  padding: 0 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  backdrop-filter: blur(8px);
}

.top-bar .logo {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.top-bar .tagline {
  color: var(--text-secondary);
  font-size: 12px;
  margin-left: 12px;
}

.top-bar-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* ---- Main Layout ---- */
.app-layout {
  display: flex;
  height: calc(100vh - 48px);
  position: relative;
  z-index: 1;
}

.viz-column {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.controls-column {
  width: 340px;
  min-width: 320px;
  max-width: 400px;
  background: var(--surface);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  flex-shrink: 0;
  backdrop-filter: blur(8px);
}

/* ---- Primary View ---- */
#primary-view {
  flex: 1;
  position: relative;
  background: transparent;
  min-height: 200px;
}

#primary-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ---- Thumbnail Strip ---- */
#thumb-strip {
  display: flex;
  gap: 8px;
  padding: 8px 12px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  overflow-x: auto;
  flex-shrink: 0;
  backdrop-filter: blur(8px);
}

.thumb {
  flex-shrink: 0;
  width: 160px;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.15s;
  background: var(--bg);
}

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

.thumb.active {
  border-color: var(--red);
}

.thumb canvas {
  width: 100%;
  height: 90px;
  display: block;
}

.thumb-label {
  display: block;
  text-align: center;
  font-size: 11px;
  color: var(--text-secondary);
  padding: 4px 0;
  background: var(--surface);
}

.thumb.active .thumb-label {
  color: var(--red);
}

/* ---- Controls Panel ---- */
.controls-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px;
  border-bottom: 1px solid var(--border);
}

.controls-header .logo {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.controls-header .badge {
  font-size: 10px;
  color: var(--blue-light);
  border: 1px solid var(--blue);
  padding: 2px 6px;
  border-radius: 10px;
}

.control-group {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.group-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--blue-light);
  margin-bottom: 12px;
  font-weight: 600;
}

.control-row {
  margin-bottom: 12px;
}

.control-row:last-child {
  margin-bottom: 0;
}

.control-row label {
  display: block;
  font-size: 12px;
  color: var(--text);
  margin-bottom: 4px;
}

.slider-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.checkbox-row {
  display: flex !important;
  align-items: center;
  gap: 8px;
  margin-bottom: 0 !important;
  cursor: pointer;
}
.checkbox-row input[type="checkbox"] {
  margin: 0;
  cursor: pointer;
}
.checkbox-row span {
  font-size: 12px;
  color: var(--text);
}
.control-hint {
  margin: 4px 0 0 22px;
  font-size: 11px;
  color: var(--text-secondary, #A09A94);
  line-height: 1.35;
}

.slider-row input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
}

.slider-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--red);
  cursor: pointer;
  border: 2px solid var(--bg);
}

.slider-value {
  min-width: 56px;
  text-align: right;
  font-size: 13px;
  font-family: 'SF Mono', 'Menlo', 'Monaco', monospace;
  color: var(--accent-secondary);
}

select {
  width: 100%;
  padding: 6px 10px;
  background: rgba(26, 18, 11, 0.8);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  cursor: pointer;
  outline: none;
}

select:focus {
  border-color: var(--blue);
}

/* Presets */
.presets {
  display: flex;
  gap: 4px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.preset-btn {
  padding: 3px 8px;
  font-size: 11px;
  background: rgba(26, 18, 11, 0.6);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.15s;
}

.preset-btn:hover {
  border-color: var(--red);
  color: var(--red);
}

.preset-btn.active {
  border-color: var(--red);
  background: var(--red);
  color: var(--white);
}

/* Buttons */
.button-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.action-btn {
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: var(--red);
  color: var(--white);
  transition: opacity 0.15s;
}

.action-btn:hover {
  opacity: 0.85;
}

.action-btn.secondary {
  background: var(--blue);
  color: var(--white);
}

/* Pro upgrade button */
#btn-pro {
  background: var(--red);
  color: var(--white);
}

#btn-share {
  background: var(--blue);
  color: var(--white);
}

/* Hide native number input spinners */
.tube-angle-input::-webkit-inner-spin-button,
.tube-angle-input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.tube-angle-input {
  -moz-appearance: textfield;
}

/* Data Table */
.data-table-wrap {
  max-height: 300px;
  overflow-y: auto;
  margin-top: 8px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
  font-family: 'SF Mono', 'Menlo', 'Monaco', monospace;
}

.data-table th {
  position: sticky;
  top: 0;
  background: var(--surface);
  color: var(--blue-light);
  font-weight: 600;
  text-align: left;
  padding: 4px 6px;
  border-bottom: 1px solid var(--border);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table td {
  padding: 3px 6px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

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

/* ---- Responsive (< 768px) ---- */
@media (max-width: 767px) {
  .app-layout {
    flex-direction: column;
  }

  .controls-column {
    width: 100%;
    max-width: none;
    min-width: auto;
    border-left: none;
    border-top: 1px solid var(--border);
    max-height: 50vh;
  }

  #primary-view {
    min-height: 250px;
    max-height: 40vh;
  }

  #thumb-strip {
    overflow-x: auto;
    flex-wrap: nowrap;
  }

  .thumb {
    width: 120px;
  }

  .thumb canvas {
    height: 60px;
  }
}

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

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

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-light);
}

/* ==========================================================================
   Getting Started view
   ========================================================================== */

.gs-wrap {
  position: absolute;
  inset: 0;
  overflow-y: auto;
  padding: 28px 40px 40px;
  max-width: 820px;
  margin: 0 auto;
}

.gs-hero {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 20px;
}
.gs-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
}
.gs-badge {
  font-size: 10px;
  padding: 2px 8px;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.gs-section {
  margin-bottom: 22px;
}
.gs-h2 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--blue-light);
  margin-bottom: 8px;
  font-weight: 600;
}
.gs-p {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text);
  opacity: 0.92;
}

.gs-create {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.gs-label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.gs-input-row {
  display: flex;
  gap: 8px;
}
.gs-input {
  flex: 1;
  min-width: 0;
  font-family: inherit;
  font-size: 15px;
  padding: 10px 12px;
  background: rgba(0, 0, 0, 0.35);
  color: var(--text);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.gs-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(204, 41, 54, 0.25);
}
.gs-input.gs-shake {
  animation: gsShake 0.35s cubic-bezier(.36,.07,.19,.97) both;
  border-color: var(--red-light);
}
@keyframes gsShake {
  10%, 90% { transform: translateX(-1px); }
  20%, 80% { transform: translateX(2px); }
  30%, 50%, 70% { transform: translateX(-4px); }
  40%, 60% { transform: translateX(4px); }
}
.gs-go-btn {
  padding: 10px 18px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
  white-space: nowrap;
}
.gs-go-btn:hover { background: var(--red-light); }
.gs-go-btn:active { transform: translateY(1px); }

/* Your Racks grid */
.gs-rack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}
.gs-empty {
  grid-column: 1 / -1;
  padding: 24px 20px;
  border: 1px dashed var(--border-light);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: 13px;
  text-align: center;
}
.gs-rack-tile {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.1s ease;
  min-height: 130px;
  display: flex;
  flex-direction: column;
}
.gs-rack-tile:hover {
  background: var(--surface-hover);
  border-color: var(--border-light);
}
.gs-rack-tile.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent) inset;
}
.gs-rack-thumb {
  font-size: 36px;
  text-align: center;
  padding: 12px 0 10px;
  opacity: 0.9;
  position: relative;
}
.gs-active-dot {
  position: absolute;
  top: 0;
  right: 0;
  color: var(--accent);
  font-size: 14px;
}
.gs-rack-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: 2px;
}
.gs-rack-meta {
  font-size: 11px;
  color: var(--text-secondary);
}
.gs-rack-delete {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 22px;
  height: 22px;
  border: none;
  background: rgba(0,0,0,0.4);
  color: var(--text-secondary);
  border-radius: 50%;
  font-size: 12px;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.gs-rack-tile:hover .gs-rack-delete { opacity: 1; }
.gs-rack-delete:hover {
  background: var(--accent);
  color: #fff;
}

/* A Bit More Info — collapsible */
.gs-more-info-header {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  padding: 6px 0;
}
.gs-more-info-header:hover { color: var(--text); }
.gs-chevron {
  display: inline-block;
  width: 12px;
  font-size: 14px;
}
.gs-more-info-body {
  list-style: decimal inside;
  padding: 10px 4px 4px 8px;
  font-size: 13px;
  color: var(--text);
  line-height: 1.6;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.gs-more-info-body.gs-open {
  max-height: 1000px;
}
.gs-more-info-body li {
  margin: 4px 0;
  padding-left: 4px;
}

/* ---- Stepper Thumbs (Phase 3b) ---- */
.thumb {
  position: relative;
}

.step-badge {
  position: absolute;
  top: 6px;
  left: 6px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 2;
  font-family: monospace;
}

.thumb.active .step-badge {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
  box-shadow: 0 0 0 0 rgba(215, 58, 58, 0.7);
  animation: stepPulse 1.8s ease-out infinite;
}

@keyframes stepPulse {
  0%   { box-shadow: 0 0 0 0   rgba(215, 58, 58, 0.55); }
  70%  { box-shadow: 0 0 0 10px rgba(215, 58, 58, 0); }
  100% { box-shadow: 0 0 0 0   rgba(215, 58, 58, 0); }
}

.thumb.visited .step-badge {
  background: rgba(76, 175, 80, 0.85);
  color: #fff;
  border-color: #4caf50;
}

/* Keep the pulsing red for the active step even if it's also visited */
.thumb.active.visited .step-badge {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
}

.step-check {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(76, 175, 80, 0.9);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: none;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 2;
}

.thumb.visited:not(.active) .step-check {
  display: flex;
}

.thumb.aux-thumb .step-badge {
  background: rgba(40, 30, 20, 0.75);
  color: #f5b94b;
  border-color: rgba(245, 185, 75, 0.5);
  font-size: 14px;
  font-weight: 400;
}

.thumb.aux-thumb.active .step-badge {
  background: #f5b94b;
  color: #1a120b;
  border-color: #f5b94b;
  animation: none;
  box-shadow: 0 0 0 2px rgba(245, 185, 75, 0.3);
}

/* Lock overlay for paywalled views (⑨ STL, ⑩ DIY List, ⑪ DIY Build Instructions). */
.step-lock {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  background: rgba(0, 0, 0, 0.62);
  border-radius: 6px;
  pointer-events: none;
  z-index: 3;
  color: #f5b94b;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.7);
}

.thumb.locked .step-lock {
  display: flex;
}

.thumb.locked canvas {
  filter: grayscale(0.7) brightness(0.55);
}

.thumb.locked .thumb-label {
  color: var(--text-secondary);
}

/* Next / Back navigation pinned at the end of the strip */
.step-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex-shrink: 0;
  padding: 4px 4px 4px 8px;
  border-left: 1px solid var(--border);
  margin-left: 4px;
  align-self: stretch;
  justify-content: center;
}

.step-nav-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 14px;
  border-radius: var(--radius);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
  white-space: nowrap;
  min-width: 88px;
  text-align: center;
}

.step-nav-btn:hover:not(:disabled) {
  border-color: var(--red);
  color: var(--red);
}

.step-nav-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.step-nav-btn.finale {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
}

.step-nav-btn.finale:hover:not(:disabled) {
  background: #c02d2d;
  border-color: #c02d2d;
  color: #fff;
}

/* ---- Save Indicator (Phase 3b) ---- */
.save-indicator {
  font-size: 12px;
  color: var(--text-secondary);
  margin-right: 8px;
  min-width: 78px;
  text-align: right;
  opacity: 0;
  transition: opacity 0.25s;
  font-family: monospace;
}

.save-indicator.visible {
  opacity: 1;
}

.save-indicator.saving   { color: #f5b94b; }
.save-indicator.saved    { color: #4caf50; }
.save-indicator.error    { color: var(--red); }
.save-indicator.offline  { color: var(--text-secondary); }

/* ---- Auth UI (Phase 4) ---- */
.auth-slot {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-right: 8px;
}

.auth-email {
  font-size: 12px;
  color: var(--text-secondary);
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: monospace;
}

/* Modal */
.auth-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: authFadeIn 0.15s ease-out;
}

@keyframes authFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.auth-modal-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px 28px 24px;
  width: min(440px, calc(100vw - 32px));
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  animation: authCardIn 0.2s ease-out;
}

@keyframes authCardIn {
  from { transform: translateY(12px) scale(0.98); opacity: 0; }
  to   { transform: translateY(0)    scale(1);    opacity: 1; }
}

.auth-modal-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 28px;
  height: 28px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 16px;
  cursor: pointer;
  border-radius: 4px;
  line-height: 1;
}

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

.auth-modal-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}

.auth-modal-sub {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 18px;
}

.auth-modal-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.auth-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

.auth-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: var(--radius);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
}

.auth-input:focus {
  border-color: var(--red);
}

.auth-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 4px;
}

.auth-success {
  padding: 18px 8px 6px;
  text-align: center;
}

.auth-success-icon {
  font-size: 36px;
  margin-bottom: 8px;
}

.auth-success-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}

.auth-success-sub {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ---- Share UI (Phase 5) ---- */
.share-loading {
  padding: 12px;
  color: var(--text-secondary);
  font-size: 13px;
  text-align: center;
}

.share-error {
  padding: 12px;
  color: var(--red);
  font-size: 13px;
  background: rgba(215, 58, 58, 0.08);
  border: 1px solid rgba(215, 58, 58, 0.35);
  border-radius: 6px;
}

.share-link-row {
  display: flex;
  gap: 8px;
}

.share-link-input {
  font-family: monospace;
  font-size: 12px;
  color: var(--text-secondary);
}

.share-hint {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
  padding: 8px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.share-hint em {
  color: var(--white);
  font-style: normal;
  font-weight: 600;
}

/* Share icon on "Your Racks" tiles — sits next to delete ✕ */
.gs-rack-share {
  position: absolute;
  top: 4px;
  right: 28px;
  width: 22px;
  height: 22px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  border-radius: 4px;
  opacity: 0;
  transition: opacity 0.15s, background 0.15s, color 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.gs-rack-tile:hover .gs-rack-share {
  opacity: 1;
}

.gs-rack-share:hover {
  background: var(--bg);
  color: var(--white);
}

/* ---- Shared Viewer (/r/:token) ---- */
/* The base html+body use overflow:hidden + fixed height for the app shell —
   override both when in shared-viewer mode so the page scrolls normally. */
html:has(body.shared-viewer-mode),
body.shared-viewer-mode {
  overflow: auto !important;
  height: auto !important;
}

/* Hide the app's flag + radial overlays in shared viewer (they leak through
   otherwise and look scrappy on the error state). */
body.shared-viewer-mode::before,
body.shared-viewer-mode::after {
  display: none !important;
}

.shared-viewer {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
}

.shared-viewer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
}

.shared-viewer-home {
  color: var(--white);
  text-decoration: none;
  font-size: 18px;
  letter-spacing: 0.5px;
}

.shared-viewer-home strong {
  font-weight: 700;
}

.shared-viewer-actions {
  display: flex;
  gap: 8px;
}

.shared-viewer-body {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px 64px;
  width: 100%;
  box-sizing: border-box;
}

.shared-viewer-header h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 8px;
}

.shared-viewer-sub {
  color: var(--text-secondary);
  font-size: 14px;
  margin: 0 0 28px;
  font-family: monospace;
}

.shared-viewer-stage {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.shared-viewer-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
}

.shared-viewer-panel-title {
  color: var(--text-secondary);
  font-size: 11px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.shared-viewer-panel canvas {
  width: 100%;
  height: auto;
  display: block;
  background: var(--bg);
  border-radius: 4px;
}

/* Compact per-row grid inside the Rack Rows panel */
.shared-viewer-row-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 12px;
}

.shared-viewer-row-cell {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.shared-viewer-row-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}

.shared-viewer-row-name {
  color: var(--white);
  font-weight: 700;
  font-size: 12px;
  font-family: monospace;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

.shared-viewer-row-angles {
  color: var(--text-secondary);
  font-size: 10px;
  font-family: monospace;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.shared-viewer-row-cell canvas {
  width: 100%;
  height: auto;
  display: block;
  background: var(--bg);
  border-radius: 4px;
}

/* ---- Toasts (Phase 6) ---- */
.toast-container {
  position: fixed;
  top: 64px;
  right: 16px;
  z-index: 1100;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--red);
  color: var(--text);
  font-size: 13px;
  padding: 10px 14px;
  border-radius: 6px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 340px;
  transform: translateX(calc(100% + 24px));
  opacity: 0;
  transition: transform 0.28s cubic-bezier(0.2, 0.9, 0.3, 1), opacity 0.2s;
  pointer-events: auto;
  backdrop-filter: blur(6px);
}

.toast.visible {
  transform: translateX(0);
  opacity: 1;
}

.toast.leaving {
  opacity: 0;
  transform: translateX(16px);
}

.toast-icon {
  font-size: 16px;
  line-height: 1;
  flex-shrink: 0;
}

.toast-text {
  line-height: 1.4;
}

.toast-success { border-left-color: #4caf50; }
.toast-error   { border-left-color: var(--red); }

/* ---- Legend Card (Phase 6) ---- */
.legend-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  padding: 8px 0 14px;
}

.legend-stat {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.legend-stat-val {
  color: var(--white);
  font-size: 20px;
  font-weight: 700;
  font-family: monospace;
}

.legend-stat-label {
  color: var(--text-secondary);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.legend-clip {
  padding: 14px;
  background: linear-gradient(135deg, rgba(215, 58, 58, 0.08), rgba(74, 124, 200, 0.06));
  border: 1px solid var(--border);
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.legend-clip-title {
  color: var(--white);
  font-weight: 700;
  font-size: 14px;
}

.legend-clip-sub {
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.45;
  margin-bottom: 6px;
}

.legend-clip-btn {
  align-self: flex-start;
}

.legend-clip-status {
  font-size: 12px;
  color: var(--text-secondary);
  font-style: italic;
  min-height: 16px;
}

.legend-clip-status-error {
  color: var(--red);
  font-style: normal;
}

.legend-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
  padding-top: 8px;
}

/* ---- Easter egg chip (Phase 6) ---- */
/* ---- SFX toggle button ---- */
.sfx-toggle {
  min-width: 40px;
  padding: 6px 10px;
  font-size: 14px;
}

.sfx-toggle.sfx-on {
  background: #f5b94b;
  border-color: #f5b94b;
  color: #1a120b;
}

.sfx-toggle.sfx-on:hover {
  background: #dfa236;
  border-color: #dfa236;
}

.ee-chip {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 8px;
  font-size: 10px;
  background: rgba(215, 58, 58, 0.15);
  color: #f5b94b;
  border: 1px solid rgba(245, 185, 75, 0.4);
  border-radius: 10px;
  letter-spacing: 0.5px;
  font-weight: 600;
  animation: eeChipIn 0.3s ease-out;
}

@keyframes eeChipIn {
  from { transform: scale(0.7); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

.shared-viewer-footer {
  margin-top: 28px;
  color: var(--text-secondary);
  font-size: 12px;
  text-align: center;
}

.shared-viewer-loading,
.shared-viewer-missing {
  padding: 48px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
}

.shared-viewer-missing {
  font-size: 48px;
}