/* ===========================
   CSS Custom Properties
   =========================== */
:root {
  --color-primary: #6c5ce7;
  --color-primary-hover: #5a4bd1;
  --color-primary-glow: rgba(108, 92, 231, 0.25);
  --color-secondary: #00cec9;
  --color-secondary-hover: #00b3ae;
  --color-secondary-glow: rgba(0, 206, 201, 0.2);
  --color-correct: #00b894;
  --color-correct-glow: rgba(0, 184, 148, 0.25);
  --color-wrong: #d63031;
  --color-wrong-glow: rgba(214, 48, 49, 0.25);
  --color-bg: #0f0f1a;
  --color-bg-pattern: #13132a;
  --color-surface: #1a1a2e;
  --color-surface-hover: #25254a;
  --color-surface-border: #2a2a4a;
  --color-text: #f0f0f0;
  --color-text-muted: #a0a0b0;
  --color-timer: #fdcb6e;
  --color-timer-warn: #e17055;
  --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'Cascadia Code', 'Fira Code', monospace;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px var(--color-primary-glow);
  --transition-speed: 0.2s;
  --max-width: 600px;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  justify-content: center;
  align-items: center;
  /* Subtle radial gradient background */
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(108, 92, 231, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(0, 206, 201, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 50% 100%, rgba(108, 92, 231, 0.05) 0%, transparent 40%);
  background-attachment: fixed;
}

/* Dot-grid pattern overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, var(--color-surface-border) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.3;
  pointer-events: none;
  z-index: 0;
}

#app {
  width: 100%;
  max-width: var(--max-width);
  padding: 1.25rem;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
}

/* ===========================
   Screen Management
   =========================== */
.screen {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  flex: 1;
  width: 100%;
  animation: screenFadeIn 0.2s ease-out;
}

.screen.active {
  display: flex;
}

@keyframes screenFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===========================
   Typography
   =========================== */
.screen-header {
  text-align: center;
  padding: 1rem 0;
}

.screen-description {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-top: 0.4rem;
}

/* Home screen header gets extra breathing room */
.home-header {
  padding: 2.5rem 0 1rem;
}

.title-icon {
  font-size: 3.5rem;
  margin-bottom: 0.75rem;
  filter: drop-shadow(0 4px 12px rgba(108, 92, 231, 0.4));
  animation: titleBounce 2s ease-in-out infinite;
}

@keyframes titleBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.game-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
  line-height: 1.1;
}

.game-subtitle {
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

/* ===========================
   Buttons
   =========================== */
.btn {
  border: none;
  border-radius: var(--radius);
  padding: 1rem 2rem;
  font-size: 1.1rem;
  font-weight: 600;
  font-family: var(--font-main);
  cursor: pointer;
  transition:
    background-color var(--transition-speed),
    transform 0.15s ease,
    box-shadow var(--transition-speed);
  width: 100%;
  max-width: 300px;
  position: relative;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
  transition-duration: 0.05s;
}

.btn:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 3px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #7c6cf7);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-primary-hover), #6b5be6);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 2px solid var(--color-surface-border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--color-surface-hover);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.btn-back {
  background: none;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  max-width: none;
  width: auto;
}

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

/* ===========================
   Home Screen
   =========================== */
.home-menu {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  width: 100%;
}

.home-stats {
  margin-top: auto;
  padding: 1.25rem;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.high-score {
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: 0.75rem 1.5rem;
  display: inline-block;
}

/* ===========================
   Community Section
   =========================== */
.community-section {
  width: 100%;
  margin-top: 1.5rem;
  padding: 1.25rem;
  background-color: var(--color-surface);
  border: 2px solid var(--color-surface-border);
  border-radius: var(--radius-lg);
  text-align: center;
}

.community-heading {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.community-buttons {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
}

.community-buttons .btn {
  flex: 1;
  max-width: 200px;
  font-size: 0.9rem;
}

/* ===========================
   Onboarding Explainer
   =========================== */
.onboarding-explainer {
  width: 100%;
  margin-bottom: 1.5rem;
  background-color: var(--color-surface);
  border: 2px solid var(--color-surface-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.onboarding-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1.25rem;
  background: none;
  border: none;
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition-speed);
}

.onboarding-toggle:hover {
  background-color: var(--color-surface-hover);
}

.onboarding-chevron {
  transition: transform var(--transition-speed);
}

.onboarding-explainer.collapsed .onboarding-chevron {
  transform: rotate(-90deg);
}

.onboarding-content {
  padding: 0 1.25rem 1.25rem;
}

.onboarding-explainer.collapsed .onboarding-content {
  display: none;
}

.onboarding-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.onboarding-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.onboarding-icon {
  font-size: 1.75rem;
}

.onboarding-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}

.onboarding-arrow {
  font-size: 1.25rem;
  color: var(--color-text-muted);
}

.onboarding-text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 1rem;
  text-align: center;
}

.btn-dismiss {
  background: none;
  color: var(--color-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 1rem;
  border: 1px solid var(--color-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

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

.coming-soon-tooltip {
  position: relative;
  display: inline-block;
}

.coming-soon-tooltip::after {
  content: 'Coming soon!';
  position: absolute;
  bottom: 110%;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-surface);
  color: var(--color-text-muted);
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-surface-border);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-speed);
  box-shadow: var(--shadow-sm);
}

.coming-soon-tooltip.show-tooltip::after {
  opacity: 1;
}

/* ===========================
   Puzzle Type Selector
   =========================== */
.type-selector {
  display: flex;
  gap: 0.75rem;
  width: 100%;
}

.type-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  padding: 1rem 0.5rem;
  background-color: var(--color-surface);
  border: 2px solid var(--color-surface-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition:
    border-color var(--transition-speed),
    background-color var(--transition-speed),
    box-shadow var(--transition-speed);
  color: var(--color-text);
  font-family: var(--font-main);
}

.type-card input[type="radio"] {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
  opacity: 0;
}

.type-card:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(100, 108, 255, 0.3);
}

.type-card:hover:not(.disabled) {
  border-color: var(--color-primary);
  background-color: var(--color-surface-hover);
}

.type-card.active {
  border-color: var(--color-secondary);
  background-color: var(--color-surface-hover);
  box-shadow: 0 0 12px var(--color-secondary-glow);
}

.type-card.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.type-card-icon {
  font-size: 1.5rem;
}

.type-card-label {
  font-weight: 600;
  font-size: 0.9rem;
}

.type-card-desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* ===========================
   Options Editor
   =========================== */
.options-editor {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
}

.option-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.option-radio {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--color-correct);
  cursor: pointer;
  flex-shrink: 0;
}

.option-input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border: 2px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 0.9rem;
  transition: border-color var(--transition-speed);
}

.option-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.option-input.has-error {
  border-color: var(--color-wrong);
}

/* ===========================
   Field Errors
   =========================== */
.field-error {
  font-size: 0.8rem;
  color: var(--color-wrong);
  min-height: 1.2em;
  margin-top: 0.25rem;
}

.field-error:empty {
  display: none;
}

/* ===========================
   Puzzle Preview
   =========================== */
.puzzle-preview {
  width: 100%;
  margin-top: 1.5rem;
  background-color: var(--color-surface);
  border: 2px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.preview-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.preview-empty {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  text-align: center;
  padding: 1rem 0;
}

.preview-sequence {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 0.75rem;
}

.preview-sequence-item {
  background-color: var(--color-bg);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  font-size: 1.2rem;
  text-align: center;
  min-width: 2.5rem;
}

.preview-question {
  text-align: center;
  font-weight: 600;
  color: var(--color-text);
  margin: 0.75rem 0;
  font-size: 1rem;
}

.preview-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.preview-option-btn {
  padding: 0.6rem 0.5rem;
  border: 2px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
  color: var(--color-text);
  text-align: center;
  font-size: 0.9rem;
  cursor: default;
}

.preview-option-btn.correct {
  border-color: var(--color-correct);
  background-color: rgba(0, 184, 148, 0.1);
}

.preview-explanation {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
  padding-top: 0.5rem;
  border-top: 1px solid var(--color-surface-border);
}

/* ===========================
   Submit Form Enhancements
   =========================== */
.submit-puzzle-form .form-group {
  margin-bottom: 1rem;
}

.submit-puzzle-form label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  color: var(--color-text);
}

.submit-puzzle-form select,
.submit-puzzle-form input[type="text"],
.submit-puzzle-form textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 2px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 0.9rem;
  transition: border-color var(--transition-speed);
}

.submit-puzzle-form select:focus,
.submit-puzzle-form input[type="text"]:focus,
.submit-puzzle-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.submit-puzzle-form .has-error {
  border-color: var(--color-wrong);
}

#sp-submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Image upload components */
.image-upload-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.image-upload-single {
  margin-bottom: 0.5rem;
}

.image-drop-zone {
  position: relative;
  border: 2px dashed var(--color-border, #555);
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  min-height: 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
}

.image-drop-zone:hover,
.image-drop-zone.drag-over {
  border-color: var(--color-primary, #4fc3f7);
  background: rgba(79, 195, 247, 0.05);
}

.image-drop-zone.has-image {
  border-style: solid;
  border-color: var(--color-success, #66bb6a);
  padding: 0.25rem;
}

.image-drop-zone .drop-zone-text {
  font-size: 0.8rem;
  color: var(--color-text-muted, #888);
}

.image-drop-zone .image-file-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.image-drop-zone .image-preview-thumb {
  max-width: 100%;
  max-height: 80px;
  border-radius: 4px;
  object-fit: contain;
}

.image-drop-zone .image-remove-btn {
  position: absolute;
  top: 2px;
  right: 2px;
  background: rgba(0, 0, 0, 0.6);
  color: white;
  border: none;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  font-size: 0.7rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.btn-sm {
  padding: 0.25rem 0.75rem;
  font-size: 0.85rem;
}

.preview-sequence-item img,
.preview-option-btn img {
  max-width: 60px;
  max-height: 60px;
  object-fit: contain;
  border-radius: 4px;
}

@media (min-width: 768px) {
  #screen-submit-puzzle {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
  }

  #screen-submit-puzzle > .screen-header,
  #screen-submit-puzzle > .onboarding-explainer,
  #screen-submit-puzzle > .btn-back {
    width: 100%;
  }

  .submit-puzzle-form {
    flex: 1;
    min-width: 0;
  }

  .puzzle-preview {
    width: 280px;
    flex-shrink: 0;
    margin-top: 0;
    align-self: flex-start;
    position: sticky;
    top: 1rem;
  }
}

/* ===========================
   My Submissions Dashboard
   =========================== */
.my-submissions-list {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.my-submissions-loading,
.my-submissions-error {
  text-align: center;
  color: var(--color-text-muted);
  padding: 2rem 1rem;
}

.my-submissions-error {
  color: var(--color-wrong);
}

.my-submissions-empty {
  text-align: center;
  padding: 3rem 1rem;
}

.my-submissions-empty-icon {
  font-size: 3rem;
  margin-bottom: 0.75rem;
}

.my-submissions-empty-text {
  color: var(--color-text-muted);
  font-size: 1rem;
  margin-bottom: 1.25rem;
}

.submission-card {
  background-color: var(--color-surface);
  border: 2px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  text-align: left;
}

.submission-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.submission-sequence-preview {
  font-size: 1.1rem;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.submission-status-badge {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.submission-status-badge.status-pending {
  background-color: color-mix(in srgb, var(--color-timer) 20%, transparent);
  color: var(--color-timer);
}

.submission-status-badge.status-approved {
  background-color: color-mix(in srgb, var(--color-correct) 20%, transparent);
  color: var(--color-correct);
}

.submission-status-badge.status-rejected {
  background-color: color-mix(in srgb, var(--color-wrong) 20%, transparent);
  color: var(--color-wrong);
}

.submission-card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.submission-category-badge {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  background-color: var(--color-surface-hover);
  border-radius: var(--radius-sm);
  color: var(--color-text);
}

.submission-difficulty {
  font-size: 0.85rem;
  color: var(--color-timer);
}

.submission-card-dates {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.submission-card-dates span {
  display: inline-block;
  margin-right: 1rem;
}

.submission-reviewer-notes {
  margin-top: 0.5rem;
}

.submission-notes-toggle {
  background: none;
  border: none;
  color: var(--color-secondary);
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.25rem 0;
  transition: color var(--transition-speed);
}

.submission-notes-toggle:hover {
  color: var(--color-secondary-hover);
}

.submission-notes-content {
  display: none;
  margin-top: 0.5rem;
  padding: 0.75rem;
  background-color: var(--color-bg);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.submission-notes-content.expanded {
  display: block;
}

/* Submission card action buttons */
.submission-card-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-surface-border);
}

.btn-sm {
  font-size: 0.8rem;
  padding: 0.3rem 0.75rem;
}

.btn-danger {
  background-color: var(--color-wrong);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-main);
  font-weight: 600;
  transition: background-color var(--transition-speed);
}

.btn-danger:hover {
  background-color: color-mix(in srgb, var(--color-wrong) 80%, black);
}

/* Inline edit form */
.submission-edit-form {
  padding: 0.5rem 0;
}

.submission-edit-form .form-group {
  margin-bottom: 0.75rem;
}

.submission-edit-form label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--color-text);
}

.submission-edit-form input[type="text"],
.submission-edit-form textarea,
.submission-edit-form select {
  width: 100%;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 0.85rem;
  box-sizing: border-box;
}

.edit-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
}

.submission-edit-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.submission-edit-status {
  font-size: 0.8rem;
  margin-top: 0.5rem;
}

.submission-edit-status.error {
  color: var(--color-wrong);
}

/* Delete confirmation overlay */
.submission-delete-confirm {
  margin-top: 0.75rem;
  padding: 0.75rem;
  background-color: color-mix(in srgb, var(--color-wrong) 10%, var(--color-surface));
  border: 1px solid var(--color-wrong);
  border-radius: var(--radius-sm);
}

.delete-confirm-text {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.delete-approved-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.delete-confirm-actions {
  display: flex;
  gap: 0.5rem;
}

/* Card removal animation */
@keyframes card-remove {
  from { opacity: 1; transform: scaleY(1); margin-bottom: 0; }
  to { opacity: 0; transform: scaleY(0); margin-bottom: 0; padding: 0; overflow: hidden; }
}

.submission-card.card-removing {
  animation: card-remove 0.3s ease-out forwards;
  transform-origin: top;
}

.submit-puzzle-links {
  text-align: center;
  margin-top: 0.75rem;
  margin-bottom: 0.5rem;
}

.btn-link {
  background: none;
  border: none;
  color: var(--color-secondary);
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.4rem 0;
  transition: color var(--transition-speed);
}

.btn-link:hover {
  color: var(--color-secondary-hover);
}

/* ===========================
   Notification Badge & List
   =========================== */
.notification-badge {
  display: inline-block;
  background: #e74c3c;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: 10px;
  padding: 0.1rem 0.4rem;
  min-width: 1.2rem;
  text-align: center;
  line-height: 1.3;
  vertical-align: middle;
  margin-left: 0.3rem;
}

.notifications-section {
  margin-bottom: 1rem;
}

.notifications-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.notifications-toggle {
  background: none;
  border: none;
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.4rem 0;
}

.notifications-mark-all {
  font-size: 0.85rem;
}

.notifications-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.notification-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius);
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  cursor: pointer;
  transition: background var(--transition-speed);
}

.notification-item:hover {
  background: var(--color-surface-hover, rgba(255, 255, 255, 0.08));
}

.notification-item.notification-unread {
  border-left: 3px solid var(--color-secondary);
  font-weight: 500;
}

.notification-item.notification-read {
  opacity: 0.7;
}

.notification-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.notification-content {
  flex: 1;
  min-width: 0;
}

.notification-message {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.4;
  word-break: break-word;
}

.notification-time {
  font-size: 0.75rem;
  color: var(--color-text-muted, #888);
  display: block;
  margin-top: 0.2rem;
}

.notification-mark-read {
  font-size: 0.8rem;
  flex-shrink: 0;
  white-space: nowrap;
}

.submission-highlight {
  animation: highlight-pulse 2s ease-out;
}

@keyframes highlight-pulse {
  0% { box-shadow: 0 0 0 3px var(--color-secondary); }
  100% { box-shadow: none; }
}

/* ===========================
   Category Select
   =========================== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  width: 100%;
}

.category-btn {
  background-color: var(--color-surface);
  border: 2px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: 1.25rem 1rem;
  text-align: center;
  cursor: pointer;
  transition:
    border-color var(--transition-speed),
    background-color var(--transition-speed),
    transform 0.15s ease,
    box-shadow var(--transition-speed);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
  line-height: 1.3;
}

.category-btn:hover {
  border-color: var(--color-primary);
  background-color: var(--color-surface-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.category-btn:active {
  transform: translateY(0);
}

.category-btn:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 3px;
}

/* ===========================
   Game Screen — HUD
   =========================== */
.game-hud {
  display: flex;
  justify-content: space-between;
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.hud-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
}

.hud-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  font-weight: 600;
}

.hud-value {
  font-size: 1.4rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.hud-value.bump {
  animation: scoreBump 0.3s ease-out;
}

@keyframes scoreBump {
  0% { transform: scale(1); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

/* ===========================
   Game Screen — Timer
   =========================== */
.timer-bar-container {
  width: 100%;
  height: 6px;
  background-color: var(--color-surface);
  border-radius: 3px;
  overflow: hidden;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
}

.timer-bar {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--color-timer-warn), var(--color-timer));
  border-radius: 3px;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px rgba(253, 203, 110, 0.3);
}

.timer-bar.warning {
  animation: timerWarningPulse 0.8s ease-in-out infinite;
}

@keyframes timerWarningPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

/* ===========================
   Game Screen — Sequence
   =========================== */
.sequence-display {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  align-items: center;
  padding: 2rem 0.5rem;
  min-height: 130px;
  flex-wrap: wrap;
}

.sequence-item {
  font-size: 2.5rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  min-width: 60px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  line-height: 1.2;
  animation: seqItemIn 0.3s ease-out backwards;
  animation-delay: calc(var(--seq-i, 0) * 0.1s);
}

.sequence-item.mystery {
  background: linear-gradient(135deg, var(--color-primary), #7c6cf7);
  border-color: transparent;
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  box-shadow: var(--shadow-sm), var(--shadow-glow);
  animation:
    mysteryBounceIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) both,
    mysteryPulse 1.5s ease-in-out infinite;
  animation-delay:
    calc(var(--seq-i, 0) * 0.1s),
    calc(var(--seq-i, 0) * 0.1s + 0.4s);
}

@keyframes mysteryPulse {
  0%, 100% { box-shadow: var(--shadow-sm), 0 0 12px var(--color-primary-glow); }
  50% { box-shadow: var(--shadow-sm), 0 0 24px var(--color-primary-glow); }
}

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

@keyframes mysteryBounceIn {
  from {
    opacity: 0;
    transform: scale(0.6);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.sequence-item img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.prompt-text {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* ===========================
   Game Screen — Options
   =========================== */
.options-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  width: 100%;
  margin-top: auto;
  padding-bottom: 0.5rem;
}

.option-btn {
  background-color: var(--color-surface);
  border: 2px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  font-size: 1.8rem;
  text-align: center;
  cursor: pointer;
  transition:
    border-color var(--transition-speed),
    background-color var(--transition-speed),
    transform 0.15s ease,
    box-shadow var(--transition-speed);
  color: var(--color-text);
  font-family: var(--font-main);
  box-shadow: var(--shadow-sm);
  line-height: 1.2;
  min-height: 44px;
  animation: optionSlideIn 0.25s ease-out backwards;
  animation-delay: calc(var(--opt-i, 0) * 0.06s);
}

.option-btn:hover {
  border-color: var(--color-primary);
  background-color: var(--color-surface-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.option-btn:active {
  transform: translateY(0);
}

.option-btn:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 3px;
}

.option-btn.correct {
  border-color: var(--color-correct);
  background-color: rgba(0, 184, 148, 0.15);
  box-shadow: 0 0 16px var(--color-correct-glow);
  animation: optionCorrectPulse 0.4s ease-out;
}

.option-btn.wrong {
  border-color: var(--color-wrong);
  background-color: rgba(214, 48, 49, 0.15);
  box-shadow: 0 0 16px var(--color-wrong-glow);
  animation: optionWrongShake 0.4s ease-out;
}

.option-btn img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

@keyframes optionSlideIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes optionCorrectPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.04); }
  100% { transform: scale(1); }
}

@keyframes optionWrongShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

/* ===========================
   Round Result Screen
   =========================== */
.result-icon {
  font-size: 5rem;
  margin-top: 2.5rem;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.3));
}

.result-title {
  font-size: 1.8rem;
  font-weight: 700;
}

.result-explanation {
  color: var(--color-text-muted);
  text-align: center;
  max-width: 400px;
  line-height: 1.6;
  font-size: 0.95rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}

.score-breakdown {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  min-width: 220px;
  font-size: 0.95rem;
}

.score-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.score-row.total {
  border-top: 1px solid var(--color-surface-border);
  padding-top: 0.4rem;
  margin-top: 0.2rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-secondary);
}

.score-row .label {
  color: var(--color-text-muted);
}

.score-row .value {
  font-weight: 600;
}

.streak-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: linear-gradient(135deg, #e17055, #d63031);
  color: white;
  padding: 0.2rem 0.6rem;
  border-radius: 1rem;
  font-size: 0.8rem;
  font-weight: 700;
}

.share-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-surface);
  border: 1px solid var(--color-correct);
  color: var(--color-text);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  z-index: 100;
  animation: toast-in 0.3s ease, toast-out 0.3s ease 1.7s forwards;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(1rem); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@keyframes toast-out {
  from { opacity: 1; }
  to { opacity: 0; }
}

/* ===========================
   Game Over Screen
   =========================== */
.gameover-header {
  text-align: center;
  padding-top: 2rem;
}

.gameover-icon {
  font-size: 4rem;
  margin-bottom: 0.5rem;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.3));
}

.gameover-title {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gameover-stats {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  padding: 1.5rem 1rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-lg);
  width: 100%;
  box-shadow: var(--shadow-md);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  flex: 1;
}

.stat-value {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-secondary);
  font-variant-numeric: tabular-nums;
}

.gameover-stats .stat-value {
  animation: statScaleIn 0.4s ease-out both;
}

.gameover-stats .stat:nth-child(1) .stat-value { animation-delay: 0.1s; }
.gameover-stats .stat:nth-child(2) .stat-value { animation-delay: 0.25s; }
.gameover-stats .stat:nth-child(3) .stat-value { animation-delay: 0.4s; }

@keyframes statScaleIn {
  from {
    opacity: 0;
    transform: scale(0.5);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.stat-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  font-weight: 600;
}

.gameover-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  width: 100%;
  margin-top: auto;
  padding-bottom: 1.5rem;
}

/* ===========================
   Leaderboard Screen
   =========================== */
.leaderboard-tabs {
  display: flex;
  gap: 0.5rem;
  width: 100%;
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: 0.3rem;
}

.leaderboard-mode-tabs {
  display: flex;
  gap: 0.5rem;
  width: 100%;
  margin-bottom: 0.5rem;
}

.leaderboard-mode-tab {
  flex: 1;
  background: none;
  border: 2px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: 0.7rem 1rem;
  font-size: 0.95rem;
  font-weight: 700;
  font-family: var(--font-main);
  color: var(--color-text-muted);
  cursor: pointer;
  transition:
    border-color var(--transition-speed),
    color var(--transition-speed),
    background-color var(--transition-speed);
}

.leaderboard-mode-tab:hover {
  color: var(--color-text);
  border-color: var(--color-primary);
}

.leaderboard-mode-tab.active {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: rgba(108, 92, 231, 0.08);
}

.leaderboard-mode-tab:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 2px;
}

.leaderboard-tab {
  flex: 1;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-main);
  color: var(--color-text-muted);
  cursor: pointer;
  transition:
    background-color var(--transition-speed),
    color var(--transition-speed);
}

.leaderboard-tab:hover {
  color: var(--color-text);
  background-color: var(--color-surface-hover);
}

.leaderboard-tab.active {
  background: linear-gradient(135deg, var(--color-primary), #7c6cf7);
  color: white;
  box-shadow: var(--shadow-sm);
}

.leaderboard-tab:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 2px;
}

.leaderboard-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
  flex: 1;
  overflow-y: auto;
  max-height: 50vh;
  padding-right: 0.25rem;
}

.leaderboard-list::-webkit-scrollbar {
  width: 4px;
}

.leaderboard-list::-webkit-scrollbar-track {
  background: transparent;
}

.leaderboard-list::-webkit-scrollbar-thumb {
  background-color: var(--color-surface-border);
  border-radius: 2px;
}

.leaderboard-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  transition: border-color var(--transition-speed);
}

.leaderboard-row.rank-1 {
  border-color: #f1c40f;
  background: linear-gradient(135deg, rgba(241, 196, 15, 0.08), var(--color-surface));
}

.leaderboard-row.rank-2 {
  border-color: #bdc3c7;
  background: linear-gradient(135deg, rgba(189, 195, 199, 0.08), var(--color-surface));
}

.leaderboard-row.rank-3 {
  border-color: #e67e22;
  background: linear-gradient(135deg, rgba(230, 126, 34, 0.08), var(--color-surface));
}

.leaderboard-row.current-user {
  border-color: var(--color-primary);
  box-shadow: 0 0 12px var(--color-primary-glow), 0 0 24px rgba(108, 92, 231, 0.1);
}

.leaderboard-rank {
  font-size: 1.1rem;
  font-weight: 700;
  min-width: 2rem;
  text-align: center;
  font-variant-numeric: tabular-nums;
  color: var(--color-text-muted);
}

.rank-1 .leaderboard-rank { color: #f1c40f; }
.rank-2 .leaderboard-rank { color: #bdc3c7; }
.rank-3 .leaderboard-rank { color: #e67e22; }

.leaderboard-medal {
  font-size: 1.3rem;
  min-width: 2rem;
  text-align: center;
}

.leaderboard-name {
  flex: 1;
  font-weight: 500;
  font-size: 1rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.leaderboard-score {
  font-weight: 700;
  font-size: 1.1rem;
  font-variant-numeric: tabular-nums;
  color: var(--color-secondary);
  white-space: nowrap;
}

.leaderboard-stats {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  margin-left: auto;
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}

.leaderboard-wins {
  font-weight: 700;
  color: var(--color-correct);
}

.leaderboard-winrate {
  color: var(--color-text-muted);
}

.leaderboard-matches {
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

.leaderboard-empty,
.leaderboard-error {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.6;
}

.leaderboard-error {
  color: var(--color-timer-warn);
}

.leaderboard-loading {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--color-text-muted);
  font-size: 1rem;
}

.leaderboard-loading::after {
  content: '';
  display: inline-block;
  width: 1.2rem;
  height: 1.2rem;
  border: 2px solid var(--color-surface-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: leaderboardSpin 0.6s linear infinite;
  margin-left: 0.5rem;
  vertical-align: middle;
}

@keyframes leaderboardSpin {
  to { transform: rotate(360deg); }
}

/* ===========================
   Auth Screen
   =========================== */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  max-width: 340px;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.auth-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  font-weight: 600;
}

.auth-input {
  background-color: var(--color-surface);
  border: 2px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: var(--font-main);
  color: var(--color-text);
  transition: border-color var(--transition-speed);
  width: 100%;
}

.auth-input::placeholder {
  color: var(--color-text-muted);
  opacity: 0.6;
}

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

.auth-error {
  color: var(--color-wrong);
  font-size: 0.9rem;
  text-align: center;
  min-height: 1.4em;
}

.auth-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  margin-top: 0.25rem;
}

/* ===========================
   Multiplayer Menu
   =========================== */
.multiplayer-menu {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: center;
  width: 100%;
}

.join-room-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  width: 100%;
  max-width: 300px;
}

.join-room-input {
  text-align: center;
  text-transform: uppercase;
  font-family: var(--font-mono);
  font-size: 1.2rem;
  letter-spacing: 0.15em;
  max-width: 300px;
}

/* Room config controls */
.room-config {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
  max-width: 300px;
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}

.room-config-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.room-config-label {
  font-weight: 600;
  font-size: 0.95rem;
}

.room-config-select {
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.6rem;
  font-family: var(--font-main);
  cursor: pointer;
  min-width: 4rem;
  text-align: center;
}

.room-config-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

/* ===========================
   Waiting Lobby
   =========================== */
.lobby-code-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background-color: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 1.25rem 2rem;
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.lobby-code {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--color-secondary);
  text-shadow: 0 0 16px var(--color-secondary-glow);
}

.lobby-copy-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.4rem;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-speed);
}

.lobby-copy-btn:hover {
  background-color: var(--color-surface-hover);
}

.lobby-copy-btn:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 2px;
}

.lobby-player-count {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-secondary);
  text-shadow: 0 0 8px var(--color-secondary-glow);
  letter-spacing: 0.04em;
}

.lobby-status {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.lobby-spinner {
  width: 1.2rem;
  height: 1.2rem;
  border: 2px solid var(--color-surface-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: leaderboardSpin 0.6s linear infinite;
}

.lobby-players {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
  max-width: 340px;
}

.lobby-player-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
}

.lobby-player-icon {
  font-size: 1.2rem;
}

.lobby-player-number {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-muted);
  min-width: 1.5rem;
}

.lobby-player-name {
  font-weight: 600;
  flex: 1;
}

.lobby-player-tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  font-weight: 600;
}

.lobby-player-tag.host-tag {
  color: var(--color-primary);
}

.btn-start-match {
  margin-top: 1rem;
  font-size: 1.1rem;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.03); }
}

/* ===========================
   Live Match — Scoreboard
   =========================== */
.match-hud-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  margin-bottom: 0.5rem;
}

.spectator-badge {
  background: var(--color-secondary);
  color: #fff;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
}

.spectator-count {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.lobby-spectator-count {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

.sound-toggle-btn {
  background: none;
  border: 1px solid var(--color-surface-border);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-speed);
  line-height: 1;
}

.sound-toggle-btn:hover {
  background-color: var(--color-surface-hover);
}

.sound-toggle-btn:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 2px;
}

.match-scoreboard {
  display: flex;
  flex-direction: column;
  gap: 0;
  width: 100%;
  max-width: 380px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.match-sb-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--color-surface-border);
  transition: background-color 0.2s;
}

.match-sb-row:last-child {
  border-bottom: none;
}

.match-sb-row.is-you {
  background-color: rgba(99, 102, 241, 0.12);
  font-weight: 700;
}

.match-sb-row.disconnected {
  opacity: 0.45;
}

.match-sb-row.disconnected .match-sb-name {
  text-decoration: line-through;
}

.sb-dc-icon {
  font-size: 0.75rem;
  margin-left: 0.25rem;
}

.match-sb-rank {
  min-width: 1.4rem;
  text-align: center;
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.8rem;
}

.match-sb-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.match-sb-score {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  min-width: 2rem;
  text-align: right;
  color: var(--color-secondary);
}

.match-round-badge {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-muted);
  background-color: var(--color-bg);
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  border: 1px solid var(--color-surface-border);
}

/* ===========================
   Match Round Result
   =========================== */
.match-round-scores {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
  max-width: 340px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}

.match-score-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.4rem 0;
}

.match-score-row.is-you {
  font-weight: 700;
}

.match-score-row .player-name {
  font-weight: 600;
}

.match-score-row .player-result {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.match-score-row .player-answer-icon {
  font-size: 1.1rem;
}

.match-score-row .player-points {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--color-secondary);
}

.match-result-info {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-style: italic;
}

/* ===========================
   Match Game Over
   =========================== */
.match-placement {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin: 0 0 0.75rem;
  text-align: center;
}

.match-final-scores {
  display: flex;
  flex-direction: column;
  gap: 0;
  width: 100%;
  max-width: 400px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.match-final-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--color-surface-border);
  transition: border-color var(--transition-speed);
}

.match-final-row:last-child {
  border-bottom: none;
}

.match-final-row.is-you {
  background-color: rgba(99, 102, 241, 0.12);
  font-weight: 700;
}

.match-final-row.rank-1 {
  border-left: 3px solid #f1c40f;
  background: linear-gradient(135deg, rgba(241, 196, 15, 0.08), var(--color-surface));
}

.match-final-row.rank-2 {
  border-left: 3px solid #c0c0c0;
}

.match-final-row.rank-3 {
  border-left: 3px solid #cd7f32;
}

.match-final-row .final-player-icon {
  font-size: 1.25rem;
  min-width: 1.6rem;
  text-align: center;
}

.match-final-row .final-player-rank {
  font-size: 0.8rem;
  min-width: 1.6rem;
  text-align: center;
  color: var(--color-text-muted);
  font-weight: 600;
}

.match-final-row .final-player-name {
  flex: 1;
  font-weight: 600;
  font-size: 0.95rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.match-final-row .final-player-score {
  font-weight: 700;
  font-size: 1.1rem;
  font-variant-numeric: tabular-nums;
  color: var(--color-secondary);
}

.home-user {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin: 0;
}

.home-user-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.btn-logout {
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: 0.5rem;
  background: var(--color-surface);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.btn-logout:hover {
  background: var(--color-danger, #e74c3c);
  color: #fff;
  border-color: var(--color-danger, #e74c3c);
}

/* ===========================
   Reconnection Overlay
   =========================== */
.reconnect-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 15, 26, 0.85);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  justify-content: center;
  align-items: center;
}

.reconnect-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  padding: 2.5rem 2rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 340px;
  text-align: center;
}

.reconnect-spinner {
  width: 2.5rem;
  height: 2.5rem;
  border: 3px solid var(--color-surface-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: leaderboardSpin 0.7s linear infinite;
}

.reconnect-message {
  color: var(--color-text);
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1.5;
}

.reconnect-home-btn {
  margin-top: 0.5rem;
}

/* ===========================
   Match History
   =========================== */
.match-history-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
  flex: 1;
  overflow-y: auto;
  max-height: 55vh;
  padding-right: 0.25rem;
}

.match-history-list::-webkit-scrollbar {
  width: 4px;
}

.match-history-list::-webkit-scrollbar-track {
  background: transparent;
}

.match-history-list::-webkit-scrollbar-thumb {
  background-color: var(--color-surface-border);
  border-radius: 2px;
}

.match-history-entry {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  transition: border-color var(--transition-speed);
}

.match-history-entry.history-win {
  border-left: 3px solid var(--color-correct);
}

.match-history-entry.history-loss {
  border-left: 3px solid var(--color-wrong);
}

/* ===========================
   Achievements
   =========================== */

.achievements-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  width: 100%;
  max-width: var(--max-width);
  margin-bottom: 1.5rem;
}

@media (max-width: 520px) {
  .achievements-grid {
    grid-template-columns: 1fr;
  }
}

.achievements-loading {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--color-text-muted);
  padding: 2rem 0;
}

.achievement-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  transition: box-shadow var(--transition-speed), opacity var(--transition-speed);
}

.achievement-card.unlocked {
  border-color: var(--color-primary);
  box-shadow: 0 0 12px var(--color-primary-glow);
}

.achievement-card.locked {
  opacity: 0.5;
  filter: grayscale(0.7);
}

.achievement-icon {
  font-size: 1.75rem;
  flex-shrink: 0;
}

.achievement-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
  flex: 1;
}

.achievement-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
}

.achievement-desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.achievement-check,
.achievement-lock {
  font-size: 1rem;
  flex-shrink: 0;
}

/* Achievement unlock toast */
.achievement-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-primary);
  box-shadow: 0 0 20px var(--color-primary-glow), var(--shadow-md);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  z-index: 9999;
  animation: achievementSlideIn 0.4s ease, achievementFadeOut 0.5s 3s ease forwards;
  white-space: nowrap;
}

.achievement-toast-icon {
  font-size: 1.2rem;
  margin-right: 0.25rem;
}

@keyframes achievementSlideIn {
  from { transform: translateX(-50%) translateY(1rem); opacity: 0; }
  to   { transform: translateX(-50%) translateY(0); opacity: 1; }
}

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

.match-history-entry.history-tie {
  border-left: 3px solid var(--color-timer);
}

.history-result-badge {
  font-size: 0.8rem;
  font-weight: 700;
  min-width: 70px;
  text-align: center;
  padding: 0.25rem 0.5rem;
  border-radius: 1rem;
  background-color: var(--color-bg);
}

.history-win .history-result-badge {
  color: var(--color-correct);
}

.history-loss .history-result-badge {
  color: var(--color-wrong);
}

.history-tie .history-result-badge {
  color: var(--color-timer);
}

.history-details {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0.15rem;
  min-width: 0;
}

.history-opponent {
  font-weight: 600;
  font-size: 0.95rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.history-score {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}

.history-date {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

/* ===========================
   Rematch Status
   =========================== */
.rematch-status {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  text-align: center;
  padding: 0.5rem 1rem;
  font-style: italic;
}

.rematch-host-indicator {
  text-align: center;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.95rem;
  margin: 0.5rem auto;
  max-width: 400px;
}

.rematch-host-indicator.host-you {
  background: rgba(250, 204, 21, 0.15);
  color: #facc15;
  border: 1px solid rgba(250, 204, 21, 0.3);
}

.rematch-host-indicator.host-other {
  background: rgba(148, 163, 184, 0.1);
  color: var(--color-text-muted);
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.rematch-players {
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
  padding: 0.5rem;
}

.rematch-players-title {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  text-align: center;
}

.rematch-player-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.5rem;
  font-size: 0.95rem;
  color: var(--color-text);
}

.rematch-player-row .ready-icon {
  color: #4ade80;
}

.btn-start-rematch {
  margin-top: 0.25rem;
  font-size: 1.1rem;
  animation: pulse 2s ease-in-out infinite;
}

/* ===========================
   Difficulty Selector
   =========================== */
.difficulty-selector {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.difficulty-label {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-right: 0.25rem;
}

.difficulty-btn {
  padding: 0.4rem 1rem;
  border: 2px solid var(--color-surface-border);
  border-radius: 2rem;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.difficulty-btn:hover {
  border-color: var(--color-primary);
  background: var(--color-surface-hover);
}

.difficulty-btn.active {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #fff;
}

/* ===========================
   Player Profile
   =========================== */

.profile-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  width: 100%;
  max-width: var(--max-width);
  flex: 1;
  overflow-y: auto;
  max-height: 70vh;
  padding: 0.25rem;
}

.profile-loading {
  text-align: center;
  color: var(--color-text-muted);
  padding: 2rem;
  font-style: italic;
}

.profile-section {
  background-color: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}

.profile-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.profile-section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}

.profile-view-all {
  font-size: 0.8rem;
  color: var(--color-secondary);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-main);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition-speed);
}

.profile-view-all:hover {
  background: var(--color-surface-hover);
}

.profile-info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.profile-username {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}

.profile-member-since {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.profile-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

.profile-stat {
  background: var(--color-bg);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.75rem;
  text-align: center;
}

.profile-stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-secondary);
  font-family: var(--font-mono);
  display: block;
}

.profile-stat-label {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.profile-achievement-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--color-surface-border);
}

.profile-achievement-row:last-child {
  border-bottom: none;
}

.profile-achievement-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.profile-achievement-info {
  flex: 1;
  min-width: 0;
}

.profile-achievement-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  display: block;
}

.profile-achievement-date {
  font-size: 0.7rem;
  color: var(--color-text-muted);
}

.profile-match-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--color-surface-border);
}

.profile-match-row:last-child {
  border-bottom: none;
}

.profile-match-result {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 1rem;
  flex-shrink: 0;
}

.profile-match-result.win {
  background: rgba(0, 184, 148, 0.15);
  color: var(--color-correct);
}

.profile-match-result.loss {
  background: rgba(214, 48, 49, 0.15);
  color: var(--color-wrong);
}

.profile-match-result.tie {
  background: rgba(253, 203, 110, 0.15);
  color: var(--color-timer);
}

.profile-match-info {
  flex: 1;
  min-width: 0;
}

.profile-match-opponent {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  display: block;
}

.profile-match-score {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.profile-match-date {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.profile-empty {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  padding: 0.75rem;
  font-style: italic;
}

.btn-profile {
  font-size: 0.8rem;
  padding: 0.3rem 0.75rem;
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-speed);
}

.btn-profile:hover {
  border-color: var(--color-primary);
  background: var(--color-surface-hover);
}

/* ===========================
   Skip Button
   =========================== */
.btn-skip {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.5rem 1.5rem;
  background: transparent;
  border: 2px solid var(--color-text-muted);
  color: var(--color-text-muted);
  border-radius: 2rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-skip:hover {
  border-color: var(--color-text);
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.05);
}

/* ===========================
   Confetti Animation
   =========================== */
.confetti-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  overflow: hidden;
}

.confetti-piece {
  position: absolute;
  top: -10px;
  width: 10px;
  height: 10px;
  opacity: 0.9;
  animation: confettiFall 2s ease-in forwards;
}

@keyframes confettiFall {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(100vh) rotate(720deg);
    opacity: 0;
  }
}

/* ===========================
   Responsive — Small Screens
   =========================== */
@media (max-width: 359px) {
  #app {
    padding: 0.75rem;
  }

  .game-title {
    font-size: 1.6rem;
  }

  .title-icon {
    font-size: 2.5rem;
  }

  .category-grid {
    grid-template-columns: 1fr;
  }

  .category-btn {
    min-height: 44px;
  }

  .game-hud {
    padding: 0.5rem 0.75rem;
  }

  .hud-label {
    font-size: 0.6rem;
  }

  .hud-value {
    font-size: 1.1rem;
  }

  .sequence-item {
    font-size: 2rem;
    padding: 0.5rem;
    min-width: 48px;
  }

  .option-btn {
    font-size: 1.4rem;
    padding: 0.75rem;
    min-height: 44px;
  }

  .gameover-stats {
    gap: 0.75rem;
    padding: 1rem 0.75rem;
  }

  .stat-value {
    font-size: 1.6rem;
  }

  .leaderboard-tab {
    font-size: 0.8rem;
    padding: 0.5rem 0.5rem;
  }

  .leaderboard-row {
    padding: 0.6rem 0.75rem;
    gap: 0.6rem;
  }

  .leaderboard-score {
    font-size: 0.95rem;
  }

  .lobby-code {
    font-size: 1.8rem;
  }

  .lobby-code-container {
    padding: 1rem 1.25rem;
  }

  .match-sb-row {
    font-size: 0.8rem;
    padding: 0.3rem 0.5rem;
  }

  .match-scoreboard {
    max-width: 100%;
  }
}

/* ===========================
   Responsive — Medium+
   =========================== */
@media (min-width: 480px) {
  .game-title {
    font-size: 3rem;
  }

  .title-icon {
    font-size: 4rem;
  }

  .sequence-item {
    font-size: 3rem;
    padding: 1rem;
    min-width: 80px;
  }

  .option-btn {
    font-size: 2.2rem;
    padding: 1.5rem;
  }

  .gameover-stats {
    gap: 2rem;
    padding: 2rem 1.5rem;
  }
}

/* ===========================
   Light Theme
   =========================== */
[data-theme="light"] {
  --color-bg: #f5f5f5;
  --color-bg-pattern: #ebebeb;
  --color-surface: #ffffff;
  --color-surface-hover: #f0f0f0;
  --color-surface-border: #e0e0e0;
  --color-text: #1a1a2e;
  --color-text-muted: #666;
  --color-primary: #6c5ce7;
  --color-primary-glow: rgba(108, 92, 231, 0.2);
  --color-secondary: #00cec9;
  --color-secondary-glow: rgba(0, 206, 201, 0.15);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
}

/* ===========================
   Settings Screen
   =========================== */
.settings-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
}

.settings-item {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}

.settings-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
}

.settings-toggle {
  width: 20px;
  height: 20px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.settings-select {
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.6rem;
  font-family: var(--font-main);
  cursor: pointer;
}

/* ===========================
   Community Gallery
   =========================== */
.gallery-filters {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  padding: 0 1rem;
}

.gallery-filter-select {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.6rem;
  font-family: var(--font-main);
  font-size: 0.9rem;
  cursor: pointer;
  flex: 1;
  min-width: 120px;
  max-width: 200px;
}

.gallery-difficulty-filter {
  display: flex;
  gap: 0.25rem;
}

.gallery-difficulty-filter .difficulty-btn {
  font-size: 0.8rem;
  padding: 0.3rem 0.6rem;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  padding: 0 1rem;
  margin-bottom: 1rem;
}

.gallery-card {
  background-color: var(--color-surface);
  border: 2px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: 0.75rem;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.gallery-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.gallery-card-sequence {
  font-size: 1.2rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-height: 1.5em;
}

.gallery-card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.gallery-card-category {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.1rem 0.4rem;
  background-color: var(--color-surface-hover);
  border-radius: var(--radius-sm);
  color: var(--color-text);
}

.gallery-card-difficulty {
  font-size: 0.75rem;
  color: var(--color-timer);
}

.gallery-card-author {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.gallery-card-play {
  align-self: stretch;
  padding: 0.4rem;
  border: none;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary);
  color: #fff;
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition-speed);
}

.gallery-card-play:hover {
  background-color: var(--color-primary-hover);
}

.gallery-loading,
.gallery-empty {
  text-align: center;
  color: var(--color-text-muted);
  padding: 2rem 1rem;
  grid-column: 1 / -1;
}

.gallery-empty-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.gallery-empty-text {
  font-size: 0.95rem;
  line-height: 1.4;
}

.gallery-pagination {
  text-align: center;
  padding: 0 1rem 1rem;
}

@media (min-width: 600px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
  }
}

/* ===========================
   Reduced Motion
   =========================== */
.puzzle-credit {
  font-size: 0.8rem;
  color: #888;
  text-align: center;
  margin-top: 0.5rem;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    animation-delay: 0ms !important;
  }

  .screen {
    animation: none;
  }

  .sequence-item,
  .sequence-item.mystery,
  .leaderboard-loading::after,
  .lobby-spinner,
  .reconnect-spinner,
  .option-btn,
  .option-btn.correct,
  .option-btn.wrong,
  .timer-bar.warning,
  .hud-value.bump,
  .gameover-stats .stat-value {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ===========================
   Moderation UI
   =========================== */
.mod-stats-bar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.mod-stat-card {
  flex: 1;
  min-width: 120px;
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: 0.5rem;
  padding: 0.75rem;
  text-align: center;
}
.mod-stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}
.mod-stat-value {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}
.mod-bulk-header {
  display: flex;
  align-items: center;
  padding: 0.5rem 0;
  margin-bottom: 0.5rem;
}
.mod-select-all-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  cursor: pointer;
}
.mod-bulk-actions {
  position: sticky;
  bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-primary);
  border-radius: 0.75rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  z-index: 10;
  margin-top: 1rem;
}
.mod-bulk-count {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-right: auto;
}
.mod-checkbox-label {
  display: flex;
  align-items: center;
  margin-right: 0.5rem;
}
.mod-card-checkbox {
  width: 1.125rem;
  height: 1.125rem;
  cursor: pointer;
}
.moderation-card {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: 0.75rem;
  padding: 1rem;
  margin-bottom: 0.75rem;
}
.mod-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}
.mod-badge {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: 0.25rem;
  font-weight: 600;
}
.mod-badge-easy { background: rgba(0, 184, 148, 0.2); color: var(--color-correct); }
.mod-badge-medium { background: rgba(255, 165, 0, 0.2); color: #ffa500; }
.mod-badge-hard { background: rgba(214, 48, 49, 0.2); color: var(--color-wrong); }
.mod-category, .mod-type-badge, .mod-author {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.mod-type-badge {
  background: rgba(108, 92, 231, 0.15);
  padding: 0.15rem 0.4rem;
  border-radius: 0.25rem;
}
.mod-card-body p { margin: 0.25rem 0; font-size: 0.9rem; }
.mod-card-preview {
  border-top: 1px solid var(--color-surface-border);
  margin-top: 0.75rem;
  padding-top: 0.75rem;
}
.mod-card-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--color-surface-border);
}
.btn-approve {
  background: rgba(0, 184, 148, 0.15);
  color: var(--color-correct);
  border: 1px solid rgba(0, 184, 148, 0.3);
  padding: 0.4rem 0.75rem;
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: 0.85rem;
}
.btn-approve:hover { background: rgba(0, 184, 148, 0.3); }
.btn-reject {
  background: rgba(214, 48, 49, 0.15);
  color: var(--color-wrong);
  border: 1px solid rgba(214, 48, 49, 0.3);
  padding: 0.4rem 0.75rem;
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: 0.85rem;
}
.btn-reject:hover { background: rgba(214, 48, 49, 0.3); }
.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; }
.moderation-status { margin-top: 0.75rem; font-size: 0.875rem; text-align: center; }
.moderation-status.success { color: var(--color-correct); }
.moderation-status.error { color: var(--color-wrong); }
.moderation-loading, .moderation-empty, .moderation-error {
  text-align: center;
  padding: 2rem 0;
  color: var(--color-text-muted);
}
.moderation-error { color: var(--color-wrong); }
.moderation-tabs { margin-bottom: 1rem; display: flex; gap: 0.5rem; }
.mod-edit-form { display: flex; flex-direction: column; gap: 0.5rem; }
.mod-edit-form label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.85rem; color: var(--color-text-muted); }
.mod-edit-form textarea, .mod-edit-form input, .mod-edit-form select {
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-surface-border);
  border-radius: 0.375rem;
  padding: 0.4rem;
  font-size: 0.875rem;
}
.mod-edit-options { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.mod-edit-options input { flex: 1; min-width: 80px; }
.user-card .mod-card-header { justify-content: space-between; }
.mod-username { font-weight: 600; font-size: 0.95rem; }
.mod-badge-system { background: rgba(108, 92, 231, 0.2); color: var(--color-primary); }
.mod-badge-admin { background: rgba(255, 165, 0, 0.2); color: #ffa500; }
.mod-badge-user { background: rgba(0, 206, 201, 0.2); color: var(--color-secondary); }