/* ============================================
   CELLVERSE ULTRA - СТИЛИ v3.2 (Биологическая версия)
   ============================================ */

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

:root {
    --bg-primary: rgba(5, 12, 25, 0.95);
    --bg-secondary: rgba(10, 25, 50, 0.9);
    --bg-tertiary: rgba(15, 35, 70, 0.8);
    --border-color: rgba(0, 150, 255, 0.4);
    --border-glow: rgba(0, 200, 255, 0.6);
    --text-primary: #ffffff;
    --text-secondary: #aaccff;
    --text-muted: #6699cc;
    --accent-primary: #00ccff;
    --accent-secondary: #00ff88;
    --accent-warning: #ffaa00;
    --accent-danger: #ff4444;
    --accent-success: #44ff44;
    --accent-biology: #ff44aa;
}

body {
    background: #000;
    color: var(--text-primary);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    overflow: hidden;
    font-size: 14px;
    line-height: 1.4;
}

/* Canvas */
#main-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hidden {
    display: none !important;
}

/* ============================================
   ЭКРАН ВЫБОРА РЕЖИМА
   ============================================ */

#mode-selection-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0a1628 0%, #1a0a28 50%, #0a1628 100%);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mode-selection-container {
    text-align: center;
    max-width: 900px;
    padding: 40px;
}

.mode-title {
    font-size: 48px;
    color: var(--accent-primary);
    margin-bottom: 10px;
    text-shadow: 0 0 30px rgba(0, 200, 255, 0.5);
}

.mode-subtitle {
    font-size: 18px;
    color: var(--accent-biology);
    margin-bottom: 40px;
    font-weight: bold;
}

.mode-cards {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.mode-card {
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: 30px;
    width: 380px;
    text-align: left;
    transition: all 0.3s ease;
    cursor: pointer;
}

.mode-card:hover {
    border-color: var(--accent-biology);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(255, 68, 170, 0.2);
}

.mode-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.mode-card h2 {
    color: var(--accent-primary);
    margin-bottom: 10px;
    font-size: 24px;
}

.mode-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 14px;
}

.mode-card ul {
    list-style: none;
    margin-bottom: 20px;
}

.mode-card li {
    color: var(--text-muted);
    padding: 5px 0;
    font-size: 13px;
}

.mode-select-btn {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
}

.beautiful-btn {
    background: linear-gradient(135deg, #00aaff, #0066ff);
    color: white;
}

.beautiful-btn:hover {
    background: linear-gradient(135deg, #00ccff, #0088ff);
    box-shadow: 0 5px 20px rgba(0, 150, 255, 0.4);
}

.engineering-btn {
    background: linear-gradient(135deg, #44aa44, #228822);
    color: white;
}

.engineering-btn:hover {
    background: linear-gradient(135deg, #55cc55, #33aa33);
    box-shadow: 0 5px 20px rgba(0, 200, 100, 0.4);
}

.mode-options {
    margin-top: 30px;
}

.checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    cursor: pointer;
}

.checkbox-label input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* ============================================
   ЭКРАН ЗАГРУЗКИ
   ============================================ */

#loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
}

.loading-container {
    text-align: center;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 68, 170, 0.2);
    border-top-color: var(--accent-biology);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

.loading-text {
    font-size: 24px;
    color: var(--accent-biology);
    margin-bottom: 20px;
}

.loading-progress {
    width: 300px;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    margin: 0 auto 15px;
    overflow: hidden;
}

.loading-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-biology), var(--accent-primary));
    width: 0%;
    transition: width 0.3s ease;
}

.loading-details {
    font-size: 14px;
    color: var(--text-muted);
}

/* ============================================
   ЭКРАН ОШИБКИ
   ============================================ */

#error-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    z-index: 9998;
    display: flex;
    justify-content: center;
    align-items: center;
}

.error-container {
    text-align: center;
    padding: 40px;
}

.error-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.error-container h2 {
    color: var(--accent-danger);
    margin-bottom: 15px;
}

.error-container p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 400px;
}

.error-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.error-buttons button {
    padding: 12px 24px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

.error-buttons button:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-glow);
}

/* ============================================
   ОСНОВНОЙ UI
   ============================================ */

#main-ui {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 100;
}

#main-ui > * {
    pointer-events: auto;
}

/* Заголовок */
#header-panel {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50px;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 15px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    font-size: 24px;
}

.title {
    font-size: 18px;
    font-weight: bold;
    color: var(--accent-primary);
}

.version {
    font-size: 12px;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: 10px;
}

.mode-badge {
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 15px;
    background: linear-gradient(135deg, #00aaff, #0066ff);
    color: white;
    font-weight: bold;
}

#realistic-badge {
    background: linear-gradient(135deg, #ff44aa, #cc0088);
}

.header-right {
    display: flex;
    gap: 8px;
}

.header-btn {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.header-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-glow);
}

.header-btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #000;
}

/* Левая панель */
#left-panel {
    position: absolute;
    top: 60px;
    left: 10px;
    width: 380px;
    max-height: calc(100vh - 80px);
    overflow-y: auto;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.panel-section {
    border-bottom: 1px solid var(--border-color);
}

.panel-section:last-child {
    border-bottom: none;
}

.section-header {
    padding: 12px 15px;
    background: var(--bg-secondary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--text-secondary);
    user-select: none;
    transition: background 0.2s;
}

.section-header:hover {
    background: var(--bg-tertiary);
}

.toggle-icon {
    font-size: 10px;
    color: var(--accent-primary);
}

.section-content {
    padding: 15px;
}

.control-item {
    margin-bottom: 15px;
}

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

.control-item label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.count-control {
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
}

.count-control label {
    display: block;
    margin-bottom: 5px;
    font-size: 13px;
    color: var(--text-secondary);
}

.count-real {
    font-size: 11px;
    color: var(--accent-biology);
    display: block;
    margin-top: 3px;
}

.small-btn {
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    margin-right: 5px;
    margin-bottom: 5px;
}

.small-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-glow);
}

input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    -webkit-appearance: none;
    background: linear-gradient(to right, var(--bg-tertiary), var(--accent-primary));
    cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-primary);
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0, 200, 255, 0.5);
}

/* Видимость */
.visibility-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.visibility-grid label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-muted);
    cursor: pointer;
    margin: 0;
}

.visibility-grid input {
    width: 14px;
    height: 14px;
    cursor: pointer;
}

.visibility-buttons {
    display: flex;
    gap: 10px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.visibility-buttons button {
    flex: 1;
    min-width: 80px;
    padding: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
}

.visibility-buttons button:hover {
    background: var(--bg-tertiary);
}

/* Режимы */
.mode-switch {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.mode-btn {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s;
}

.mode-btn:hover {
    background: var(--bg-tertiary);
}

.mode-btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #000;
    font-weight: bold;
}

/* Пресеты */
select, input[type="text"] {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 6px;
    font-size: 13px;
    margin-bottom: 10px;
}

select:focus, input[type="text"]:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.preset-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

.preset-buttons button {
    flex: 1;
    padding: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
}

.preset-buttons button:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-glow);
}

/* Правая панель статистики */
#right-panel {
    position: absolute;
    top: 60px;
    right: 10px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 15px;
    min-width: 150px;
}

.stats-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 13px;
}

.stats-item:last-child {
    margin-bottom: 0;
}

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

.stats-value {
    color: var(--accent-primary);
    font-weight: bold;
    font-family: 'Courier New', monospace;
}

/* Подсказка */
#tooltip {
    position: fixed;
    background: var(--bg-primary);
    border: 1px solid var(--border-glow);
    border-radius: 10px;
    padding: 12px 15px;
    max-width: 300px;
    z-index: 1000;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    pointer-events: none;
}

.tooltip-title {
    font-size: 16px;
    font-weight: bold;
    color: var(--accent-primary);
    margin-bottom: 5px;
}

.tooltip-description {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.tooltip-stats {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.tooltip-real {
    font-size: 11px;
    color: var(--accent-biology);
    font-style: italic;
}

/* Панель выделения */
#selection-panel {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-primary);
    border: 2px solid var(--accent-primary);
    border-radius: 12px;
    min-width: 350px;
    box-shadow: 0 10px 40px rgba(0, 200, 255, 0.3);
}

.selection-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: var(--bg-secondary);
    border-radius: 10px 10px 0 0;
}

#selection-title {
    font-weight: bold;
    color: var(--accent-primary);
}

#btn-close-selection {
    width: 24px;
    height: 24px;
    border: none;
    background: var(--accent-danger);
    color: white;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
}

.selection-content {
    padding: 15px;
}

#selection-info {
    margin-bottom: 15px;
    font-size: 13px;
    color: var(--text-secondary);
}

.selection-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.selection-buttons button {
    flex: 1;
    min-width: 100px;
    padding: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
}

.selection-buttons button:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-glow);
}

/* Кнопки пересборки и паузы */
.floating-btn {
    position: absolute;
    bottom: 20px;
    width: 50px;
    height: 50px;
    border: 2px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    border-radius: 50%;
    cursor: pointer;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    z-index: 100;
}

#btn-rebuild {
    right: 20px;
}

#btn-pause {
    right: 90px;
}

.floating-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #000;
}

#btn-rebuild:hover {
    transform: rotate(180deg);
}

/* ============================================
   МОДАЛЬНЫЕ ОКНА
   ============================================ */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 5000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    width: 90%;
    max-width: 700px;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.editor-modal {
    max-width: 900px;
}

.modal-header {
    padding: 15px 20px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    color: var(--accent-primary);
    font-size: 18px;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--accent-danger);
    color: white;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 15px 20px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.modal-footer button {
    padding: 10px 20px;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}

.modal-footer button:hover {
    border-color: var(--border-glow);
}

/* Табы в настройках */
.settings-tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 10px 15px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    white-space: nowrap;
}

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

.tab-btn.active {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.setting-item {
    margin-bottom: 20px;
}

.setting-item label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 14px;
}

.setting-item select {
    margin-bottom: 0;
}

/* Редактор объекта */
.editor-modal .modal-body {
    display: flex;
    gap: 20px;
    padding: 0;
}

.editor-sidebar {
    width: 250px;
    padding: 20px;
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
}

.editor-sidebar h3 {
    color: var(--accent-primary);
    margin-bottom: 15px;
    font-size: 16px;
}

.editor-preview {
    flex: 1;
    background: #000;
    position: relative;
}

#editor-canvas {
    width: 100%;
    height: 100%;
    min-height: 400px;
}

/* Скроллбар */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

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

/* Адаптивность */
@media (max-width: 768px) {
    #left-panel {
        width: calc(100% - 20px);
        left: 10px;
        right: 10px;
        max-height: 50vh;
    }
    
    #right-panel {
        top: auto;
        bottom: 120px;
        right: 10px;
    }
    
    .mode-cards {
        flex-direction: column;
    }
    
    .mode-card {
        width: 100%;
    }
    
    #selection-panel {
        width: calc(100% - 20px);
        min-width: auto;
    }
    
    .settings-tabs {
        justify-content: center;
    }
    
    .tab-btn {
        padding: 8px 12px;
        font-size: 12px;
    }
}

/* Биореализм */
.realistic-btn {
    background: linear-gradient(135deg, #d8d8d8, #6f6f6f);
    color: #111;
}
.realistic-btn:hover {
    filter: brightness(1.05);
}


/* === FIX: экран выбора режима всегда влезает и скроллится === */
html, body {
  height: 100%;
}

body {
  margin: 0;
  overflow-x: hidden;
}

* {
  box-sizing: border-box;
}

#mode-selection-screen {
  position: fixed;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: flex-start;          /* ВАЖНО: не center */
  padding: clamp(16px, 4vh, 48px) 16px;
  overflow-y: auto;                /* ВАЖНО: можно прокручивать */
  overflow-x: hidden;
}

.mode-selection-container {
  width: min(1100px, 100%);
}

/* Карточки адаптивно и компактно раскладываются */
.mode-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  align-items: start;
}

/* Чтобы в узких/невысоких окнах “реалистичный” не обрезался */
#mode-realistic {
  justify-self: center;
  width: min(520px, 100%);
}

/* Чуть ужмём высоту на низких экранах */
@media (max-height: 800px) {
  .mode-card { padding: 16px; }
  .mode-card ul { margin: 10px 0; }
}

/* ============================================
   v5.3: LEADERBOARD STYLES
   ============================================ */

.leaderboard-section {
  margin-bottom: 12px;
}

.leaderboard-section h3 {
  font-size: 14px;
  margin: 0 0 10px 0;
  color: #00ffcc;
}

.leaderboard-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  background: rgba(0,0,0,0.25);
  padding: 10px;
  border-radius: 6px;
}

.leaderboard-stats .stat-item {
  display: flex;
  justify-content: space-between;
}

.leaderboard-stats .stat-label {
  opacity: 0.7;
}

.leaderboard-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 10px;
}

.leaderboard-tabs .tab-btn {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(0,0,0,0.3);
  color: #fff;
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.2s;
}

.leaderboard-tabs .tab-btn:hover {
  border-color: rgba(0,255,204,0.5);
}

.leaderboard-tabs .tab-btn.active {
  background: rgba(0,255,204,0.15);
  border-color: #00ffcc;
  color: #00ffcc;
}

.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.leaderboard-table th,
.leaderboard-table td {
  padding: 8px 6px;
  text-align: left;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.leaderboard-table th {
  background: rgba(0,0,0,0.3);
  color: #00ffcc;
  font-weight: 600;
}

.leaderboard-table tbody tr:hover {
  background: rgba(0,255,204,0.05);
}

.leaderboard-table tbody tr.own-record {
  background: rgba(0,255,204,0.1);
  border-left: 3px solid #00ffcc;
}

#leaderboard-email {
  padding: 8px 12px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(0,0,0,0.4);
  color: #fff;
  border-radius: 4px;
  font-size: 13px;
}

#leaderboard-email:focus {
  outline: none;
  border-color: #00ffcc;
}

#btn-leaderboard-login,
#btn-save-record {
  background: linear-gradient(135deg, rgba(0,255,204,0.15), rgba(0,255,204,0.05));
  border: 1px solid rgba(0,255,204,0.4);
  color: #00ffcc;
  padding: 8px 16px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

#btn-leaderboard-login:hover,
#btn-save-record:hover {
  background: linear-gradient(135deg, rgba(0,255,204,0.25), rgba(0,255,204,0.1));
  border-color: #00ffcc;
}

/* v5.5: Auth form styles */
.auth-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.auth-tab-btn {
    flex: 1;
    padding: 10px 16px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 6px;
    color: #fff;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 14px;
}

.auth-tab-btn:hover {
    background: rgba(255,255,255,0.1);
}

.auth-tab-btn.active {
    background: rgba(0,255,204,0.2);
    border-color: #00ffcc;
    color: #00ffcc;
}

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

.auth-form.hidden {
    display: none;
}

.auth-form input {
    padding: 10px 12px;
    background: rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 6px;
    color: #fff;
    font-size: 14px;
    transition: border-color 0.2s;
}

.auth-form input:focus {
    outline: none;
    border-color: #00ffcc;
}

.auth-form input::placeholder {
    color: rgba(255,255,255,0.4);
}

.user-info-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(0,255,204,0.1);
    border: 1px solid rgba(0,255,204,0.3);
    border-radius: 8px;
}

.user-avatar {
    font-size: 28px;
}

.user-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.user-email {
    font-size: 14px;
    color: #00ffcc;
}

.user-name {
    font-size: 12px;
    color: rgba(255,255,255,0.6);
}

#btn-logout {
    padding: 8px 12px;
    font-size: 16px;
}

.panel-btn.small {
    padding: 6px 12px;
    font-size: 14px;
}

#save-record-result {
    font-size: 13px;
    padding: 8px;
    border-radius: 6px;
}

#save-record-result.success {
    background: rgba(0,255,100,0.15);
    color: #00ff66;
    border: 1px solid rgba(0,255,100,0.3);
}

#save-record-result.error {
    background: rgba(255,100,100,0.15);
    color: #ff6666;
    border: 1px solid rgba(255,100,100,0.3);
}

/* v5.5: Better input styles */
.setting-item input[type="email"],
.setting-item input[type="password"],
.setting-item input[type="text"] {
    padding: 8px 10px;
    background: rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 4px;
    color: #fff;
    font-size: 14px;
}

.setting-item input:focus {
    outline: none;
    border-color: #00ffcc;
}

.setting-item label {
    display: block;
    margin-bottom: 4px;
    font-size: 12px;
    color: rgba(255,255,255,0.7);
}


/* ========================================================================== */
/* CELLVERSE I18N: language controls only                                     */
/* ========================================================================== */
.language-picker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(0, 194, 255, 0.48);
  border-radius: 10px;
  background: rgba(3, 18, 42, 0.88);
  color: #d9f7ff;
  box-shadow: 0 0 16px rgba(0, 170, 255, 0.12);
  z-index: 20;
}

.language-picker-start {
  position: absolute;
  top: 16px;
  right: 18px;
  padding: 6px 8px;
}

.language-picker-header {
  min-height: 34px;
  padding: 0 7px;
}

.language-picker-icon {
  font-size: 15px;
  line-height: 1;
  pointer-events: none;
}

.language-picker select {
  appearance: none;
  border: 0;
  outline: 0;
  padding: 3px 18px 3px 2px;
  color: inherit;
  background:
    linear-gradient(45deg, transparent 50%, #5fe0ff 50%) right 7px center / 5px 5px no-repeat,
    linear-gradient(135deg, #5fe0ff 50%, transparent 50%) right 3px center / 5px 5px no-repeat;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.language-picker select option {
  color: #e7f9ff;
  background: #07152d;
}

@media (max-width: 720px) {
  .language-picker-start {
    position: static;
    width: max-content;
    margin: 0 0 12px auto;
  }

  .language-picker-header {
    padding: 0 5px;
  }

  .language-picker-header .language-picker-icon {
    display: none;
  }
}

/* Keep the start-screen selector anchored to its own panel, and align it with header controls. */
.mode-selection-container {
  position: relative;
}

.header-right {
  align-items: center;
}