/* =============================================================
   LogicArcade Design Token System
   All components MUST use these variables. No hardcoded colors.
   ============================================================= */

:root {
    /* --- Base Palette (Adult/Lounge defaults) --- */
    --bg-color: #0f172a;
    --surface-color: #1e293b;
    --surface-hover: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-primary: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.5);
    --border-color: #334155;
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 1rem;

    /* --- Glass Morphism --- */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-bright: rgba(255, 255, 255, 0.18);
    --glass-input-bg: rgba(255, 255, 255, 0.05);
    --glass-input-focus: rgba(255, 255, 255, 0.08);

    /* --- Semantic Status Colors (theme-independent) --- */
    --color-success: #22c55e;
    --color-success-soft: rgba(34, 197, 94, 0.12);
    --color-success-text: #86efac;
    --color-error: #ef4444;
    --color-error-soft: rgba(239, 68, 68, 0.10);
    --color-error-text: #fca5a5;
    --color-info: #3b82f6;
    --color-info-soft: rgba(59, 130, 246, 0.12);
    --color-info-text: #93c5fd;
    --color-warning: #f59e0b;
    --color-warning-soft: rgba(245, 158, 11, 0.12);
    --color-warning-text: #fcd34d;

    /* --- Game cell fallbacks --- */
    --cell-bg-active: #2563eb;
    --cell-text-active: #ffffff;
    --cell-text: #f8fafc;
    --cell-text-locked: #94a3b8;
    --cell-text-error: #ef4444;

    /* --- Win/Loss UI --- */
    --win-title-color: #fbbf24;
    --win-title-gradient: linear-gradient(to right, #fbbf24, #f59e0b);
    --lose-title-color: #ef4444;
    --lose-title-gradient: linear-gradient(to right, #ef4444, #fca5a5);

    /* --- Game Type Badge Colors --- */
    --badge-wordfind: #3b82f6;
    --badge-sudoku: #a855f7;
    --badge-bridges: #ef4444;
    --badge-wordsearch: #00f2fe;
    --badge-default: #fbbf24;

    /* --- Leaderboard / Ranking --- */
    --rank-gold: #f59e0b;
    --rank-silver: #9ca3af;
    --rank-bronze: #b45309;
    --rank-positive: #10b981;
    --rank-neutral: #f59e0b;
    --rank-negative: #ef4444;

    /* --- Misc Component Tokens --- */
    --text-on-accent: #ffffff;
    --wf-key-border: #1a1a1a;
    --wf-enter-bg: linear-gradient(135deg, #3b82f6, #1d4ed8);
    --wf-enter-disabled-bg: linear-gradient(135deg, #6b7280, #374151);
    --loading-spinner-size: 3rem;
    --loading-container-height: 400px;

    --font-heading: 'Outfit', 'Helvetica Neue', sans-serif;
    --font-body: 'Inter', 'Segoe UI', sans-serif;

    /* --- Glass Blur (controllable per theme) --- */
    --glass-blur-sm: 4px;
    --glass-blur-md: 8px;
    --glass-blur-lg: 12px;

    /* --- Structural Shadows --- */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.metrics-row {
    margin: 1rem 0 2rem;
    display: flex;
    justify-content: space-around;
    background: var(--glass-bg, rgba(255, 255, 255, 0.03));
    padding: 1rem;
    border-radius: var(--border-radius-md, 0.5rem);
    border: 1px solid var(--glass-border);
}

.metrics-row div {
    text-align: center;
}

.metrics-row small {
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.05em;
}

.metrics-row strong {
    color: var(--text-primary);
    font-size: 1.2rem;
    font-family: var(--font-heading);
}

/* --- Win Overlay Shared Styles --- */
.win-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(var(--glass-blur-md));
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.win-card {
    text-align: center;
    max-width: 450px;
    padding: 3rem 2rem;
    border: 1px solid rgba(255, 215, 0, 0.3);
    /* Gold tint */
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 215, 0, 0.1);
}

.win-icon {
    font-size: 4.5rem;
    color: var(--win-title-color);
    margin-bottom: 1rem;
    display: inline-block;
    filter: drop-shadow(0 0 10px rgba(255, 215, 0, 0.5));
}

.win-card h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--win-title-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.win-card p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.win-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.auto-shared-note {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--color-success-text);
    background: var(--color-success-soft);
    border: 1px solid var(--color-success-text);
    border-radius: var(--border-radius-md);
    padding: 0.4rem 0.9rem;
    opacity: 0.85;
}

/* Options button */
.assist-popup-wrapper {
    display: inline-block;
}

/* Options modal */
.options-modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.options-modal {
    background: var(--surface-color);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    padding: 1rem 1.25rem;
    width: min(90vw, 340px);
    max-height: 80dvh;
    overflow-y: auto;
    box-shadow: 0 8px 32px -4px rgba(0, 0, 0, 0.5);
}

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

.options-modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.2rem 0.3rem;
    line-height: 1;
    border-radius: 4px;
}

.options-modal-close:hover {
    color: var(--text-primary);
    background: var(--glass-border);
}

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

.assist-panel-title {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
}

.assist-source-legend {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.65rem;
    color: var(--text-secondary);
}

.assist-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    font-weight: 700;
    border-radius: 3px;
    padding: 0 3px;
    line-height: 1.4;
}

.group-badge {
    background: var(--color-info-soft);
    color: var(--color-info-text);
}

.me-badge {
    background: var(--color-success-soft);
    color: var(--color-success-text);
}

.assist-sources {
    display: inline-flex;
    gap: 2px;
    margin-left: auto;
}

.assist-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-primary);
    padding: 0.3rem 0;
    cursor: pointer;
    user-select: none;
}

.assist-option input[type="checkbox"] {
    accent-color: var(--accent-primary);
    width: 14px;
    height: 14px;
    cursor: pointer;
}

/* Settings modal assist checks */
.assist-checks {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    padding-left: 0.25rem;
}

.assist-check-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    cursor: pointer;
    user-select: none;
}

.assist-check-item input[type="checkbox"] {
    accent-color: var(--accent-primary);
    width: 14px;
    height: 14px;
    cursor: pointer;
}

.btn-glass-metric {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-body);
}

.btn-glass-metric:hover:not(:disabled) {
    background: var(--surface-hover);
    border-color: var(--accent-primary);
    transform: translateY(-1px);
}

.btn-glass-metric:active:not(:disabled) {
    transform: translateY(0);
}

.btn-glass-metric:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    filter: grayscale(1);
}

.icon-btn {
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    font-size: 1.25rem;
}

.theme-adult {
    /* DEFAULT THEME: THE LOUNGE (Dark Mode, Sleek, Neon Accents) */
    --bg-color: #0f172a;
    --surface-color: #1e293b;
    --surface-hover: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-primary: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.5);
    --border-color: #334155;

    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-bright: rgba(255, 255, 255, 0.18);
    --glass-input-bg: rgba(255, 255, 255, 0.05);
    --glass-input-focus: rgba(255, 255, 255, 0.09);


    /* Sudoku */
    --grid-line: #475569;
    --grid-block-line: #94a3b8;
    --cell-bg: #1e293b;
    --cell-bg-active: #2563eb;
    --cell-text-active: #ffffff;
    --cell-text: #f8fafc;
    --cell-text-locked: #94a3b8;
    --cell-text-error: #ef4444;

    /* Bridges */
    --island-bg: #1e293b;
    --island-text: #f8fafc;
    --island-border: #475569;
    --island-bg-active: #2563eb;
    --island-bg-satisfied: #10b981;
    --island-bg-error: #dc2626;
    --bridge-line: #94a3b8;
    --bridge-cursor: rgba(148, 163, 184, 0.1);

    /* Word Find - Arcade Palette */
    --wf-cell-bg: var(--glass-bg);
    --wf-cell-border: var(--glass-border);
    --wf-cell-active-border: var(--accent-primary);
    --wf-text: var(--text-primary);
    --wf-absent-bg: rgba(255, 255, 255, 0.05);
    /* Fade out */
    --wf-present-bg: #fbbf24;
    /* Neon Gold */
    --wf-correct-bg: #00f2fe;
    /* Cyber Cyan */
    --wf-key-bg: var(--surface-hover);
    --wf-glow-correct: rgba(0, 242, 254, 0.5);
    --wf-glow-present: rgba(251, 191, 36, 0.4);

    /* Word Search */
    --ws-cell-bg: #1e293b;
    --ws-cell-border: #334155;
    --ws-text: #f8fafc;
    --ws-cell-active-bg: #fbbf24;
    --ws-cell-active-text: #0f172a;
    --ws-cell-found-bg: #10b981;
    --ws-cell-found-text: #ffffff;
    --ws-word-text: #94a3b8;

    --font-heading: 'Outfit', 'Helvetica Neue', sans-serif;
    --font-body: 'Inter', 'Segoe UI', sans-serif;

    --glass-blur-sm: 4px;
    --glass-blur-md: 8px;
    --glass-blur-lg: 12px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.theme-kid {
    /* FAMILY/KID THEME: High Contrast, Bright, Accessible */
    --bg-color: #f8fafc;
    --surface-color: #ffffff;
    --surface-hover: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-primary: #10b981;
    --accent-glow: rgba(16, 185, 129, 0.3);
    --border-color: #cbd5e1;

    --glass-bg: rgba(0, 0, 0, 0.02);
    --glass-border: rgba(0, 0, 0, 0.08);
    --glass-border-bright: rgba(0, 0, 0, 0.16);
    --glass-input-bg: rgba(0, 0, 0, 0.04);
    --glass-input-focus: rgba(16, 185, 129, 0.08);


    /* Sudoku */
    --grid-line: #cbd5e1;
    --grid-block-line: #0f172a;
    --cell-bg: #ffffff;
    --cell-bg-active: #fbbf24;
    --cell-text-active: #0f172a;
    --cell-text: #059669;
    --cell-text-locked: #0f172a;
    --cell-text-error: #dc2626;

    /* Bridges */
    --island-bg: #ffffff;
    --island-text: #0f172a;
    --island-border: #0f172a;
    --island-bg-active: #059669;
    --island-bg-satisfied: #10b981;
    --island-bg-error: #dc2626;
    --bridge-line: #0f172a;
    --bridge-cursor: rgba(15, 23, 42, 0.1);

    /* Word Find */
    --wf-cell-bg: #ffffff;
    --wf-cell-border: #cbd5e1;
    --wf-cell-active-border: #0f172a;
    --wf-text: #0f172a;
    --wf-absent-bg: #94a3b8;
    --wf-present-bg: #f97316;
    /* Vivid Orange */
    --wf-correct-bg: #3b82f6;
    /* Bright Blue */
    --wf-key-bg: #e2e8f0;

    /* Word Search */
    --ws-cell-bg: #ffffff;
    --ws-cell-border: #cbd5e1;
    --ws-text: #0f172a;
    --ws-cell-active-bg: #fbbf24;
    --ws-cell-active-text: #0f172a;
    --ws-cell-found-bg: #059669;
    --ws-cell-found-text: #ffffff;
    --ws-word-text: #475569;

    --font-heading: 'Outfit', 'Helvetica Neue', sans-serif;
    --font-body: 'Inter', 'Segoe UI', sans-serif;

    --glass-blur-sm: 4px;
    --glass-blur-md: 8px;
    --glass-blur-lg: 12px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.18);
}

.theme-retro-dark {
    /* RETRO DARK: Early 2000s dark web — navy-charcoal, classic link blue, no glass */
    --bg-color: #0e0e16;
    --surface-color: #16161e;
    --surface-hover: #1e1e2a;
    --text-primary: #ccccdc;
    --text-secondary: #7788aa;
    --accent-primary: #4488cc;
    --accent-glow: rgba(68, 136, 204, 0.4);
    --border-color: #2a2a3a;
    --border-radius-sm: 2px;
    --border-radius-md: 2px;
    --border-radius-lg: 4px;

    --glass-blur-sm: 0px;
    --glass-blur-md: 0px;
    --glass-blur-lg: 0px;
    --glass-bg: rgba(255, 255, 255, 0.02);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-bright: rgba(255, 255, 255, 0.14);
    --glass-input-bg: rgba(255, 255, 255, 0.04);
    --glass-input-focus: rgba(68, 136, 204, 0.12);

    --font-heading: Georgia, 'Times New Roman', serif;
    --font-body: Verdana, Tahoma, Arial, sans-serif;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.6);

    /* Sudoku */
    --grid-line: #2a2a3a;
    --grid-block-line: #4455aa;
    --cell-bg: #16161e;
    --cell-bg-active: #1155cc;
    --cell-text-active: #ffffff;
    --cell-text: #ccccdc;
    --cell-text-locked: #7788aa;
    --cell-text-error: #ee5555;

    /* Bridges */
    --island-bg: #16161e;
    --island-text: #ccccdc;
    --island-border: #2a2a3a;
    --island-bg-active: #1155cc;
    --island-bg-satisfied: #117755;
    --island-bg-error: #cc3333;
    --bridge-line: #7788aa;
    --bridge-cursor: rgba(119, 136, 170, 0.1);

    /* Word Find */
    --wf-cell-bg: var(--glass-bg);
    --wf-cell-border: var(--glass-border);
    --wf-cell-active-border: var(--accent-primary);
    --wf-text: var(--text-primary);
    --wf-absent-bg: rgba(255, 255, 255, 0.04);
    --wf-present-bg: #cc8800;
    --wf-correct-bg: #00aacc;
    --wf-key-bg: var(--surface-hover);
    --wf-glow-correct: rgba(0, 170, 204, 0.4);
    --wf-glow-present: rgba(204, 136, 0, 0.4);

    /* Word Search */
    --ws-cell-bg: #16161e;
    --ws-cell-border: #2a2a3a;
    --ws-text: #ccccdc;
    --ws-cell-active-bg: #cc8800;
    --ws-cell-active-text: #ffffff;
    --ws-cell-found-bg: #117755;
    --ws-cell-found-text: #ffffff;
    --ws-word-text: #7788aa;
}

.theme-retro-light {
    /* RETRO LIGHT: Early 2000s light web — warm cream, white panels, classic navy */
    --bg-color: #e8e4de;
    --surface-color: #ffffff;
    --surface-hover: #f0eeea;
    --text-primary: #111111;
    --text-secondary: #555566;
    --accent-primary: #1155cc;
    --accent-glow: rgba(17, 85, 204, 0.3);
    --border-color: #aaaaaa;
    --border-radius-sm: 2px;
    --border-radius-md: 2px;
    --border-radius-lg: 4px;

    --glass-blur-sm: 0px;
    --glass-blur-md: 0px;
    --glass-blur-lg: 0px;
    --glass-bg: rgba(0, 0, 0, 0.02);
    --glass-border: rgba(0, 0, 0, 0.10);
    --glass-border-bright: rgba(0, 0, 0, 0.18);
    --glass-input-bg: rgba(0, 0, 0, 0.03);
    --glass-input-focus: rgba(17, 85, 204, 0.08);

    --font-heading: Georgia, 'Times New Roman', serif;
    --font-body: Verdana, Tahoma, Arial, sans-serif;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.18);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.22);

    /* Win/Loss UI */
    --win-title-color: #996600;
    --win-title-gradient: linear-gradient(to right, #996600, #cc8800);
    --lose-title-color: #cc2200;
    --lose-title-gradient: linear-gradient(to right, #cc2200, #ee4422);

    /* Sudoku */
    --grid-line: #bbbbbb;
    --grid-block-line: #333333;
    --cell-bg: #ffffff;
    --cell-bg-active: #1155cc;
    --cell-text-active: #ffffff;
    --cell-text: #111111;
    --cell-text-locked: #555566;
    --cell-text-error: #cc2200;

    /* Bridges */
    --island-bg: #ffffff;
    --island-text: #111111;
    --island-border: #aaaaaa;
    --island-bg-active: #1155cc;
    --island-bg-satisfied: #117744;
    --island-bg-error: #cc2200;
    --bridge-line: #555566;
    --bridge-cursor: rgba(17, 85, 204, 0.1);

    /* Word Find */
    --wf-cell-bg: #ffffff;
    --wf-cell-border: #aaaaaa;
    --wf-cell-active-border: #111111;
    --wf-text: #111111;
    --wf-absent-bg: #cccccc;
    --wf-present-bg: #cc6600;
    --wf-correct-bg: #1155cc;
    --wf-key-bg: #e0ddd8;
    --wf-glow-correct: rgba(17, 85, 204, 0);
    --wf-glow-present: rgba(204, 102, 0, 0);

    /* Word Search */
    --ws-cell-bg: #ffffff;
    --ws-cell-border: #aaaaaa;
    --ws-text: #111111;
    --ws-cell-active-bg: #cc8800;
    --ws-cell-active-text: #ffffff;
    --ws-cell-found-bg: #117744;
    --ws-cell-found-text: #ffffff;
    --ws-word-text: #555566;

    /* Semantic colors */
    --color-success: #117744;
    --color-success-soft: rgba(17, 119, 68, 0.1);
    --color-success-text: #117744;
    --color-error: #cc2200;
    --color-error-soft: rgba(204, 34, 0, 0.1);
    --color-error-text: #cc2200;
    --color-info: #1155cc;
    --color-info-soft: rgba(17, 85, 204, 0.1);
    --color-info-text: #1155cc;
    --color-warning: #996600;
    --color-warning-soft: rgba(153, 102, 0, 0.1);
    --color-warning-text: #996600;
    --text-on-accent: #ffffff;
}

/* Base DOM Reset */
html,
body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    touch-action: manipulation;
    /* Prevent mobile double-tap zoom */
}

/* Mobile First App Layout Grid */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 1200px;
    margin: 0 auto;
}

header {
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 0.5rem;
}

header h1 {
    font-family: var(--font-heading);
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
    white-space: nowrap;
}

.timer {
    font-variant-numeric: tabular-nums;
    min-width: 3.5rem;
    text-align: right;
    display: inline-block;
    flex-shrink: 0;
}

.toolbar-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.game-layout {
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

/* Desktop/Tablet Override */
@media (min-width: 768px) {
    .game-layout {
        flex-direction: row;
        align-items: flex-start;
        justify-content: center;
        padding: 2rem;
        gap: 2rem;
    }
}

/* Blazor Defaults Kept for Safety */
#blazor-error-ui {
    background: #ef4444;
    color: white;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 1rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
}

/* Global Game Status Indicators (Bronze, Silver, Gold) */
.status-indicator {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 8px;
    box-shadow: 0 0 3px rgba(0, 0, 0, 0.5);
}

.status-bronze {
    background-color: #cd7f32;
    border: 1px solid #a0522d;
}

.status-silver {
    background-color: #c0c0c0;
    border: 1px solid #808080;
}

.status-gold {
    background-color: #ffd700;
    border: 1px solid #b8860b;
    box-shadow: 0 0 8px rgba(255, 215, 0, 0.6);
}

/* Word Find Specific Styles */
.wf-board-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    width: 100%;
    margin-top: 1rem;
}

.wf-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
}

.wf-grid-row {
    display: flex;
    gap: 8px;
}

.wf-grid-row.invalid-word {
    animation: h-shake 0.4s ease-in-out;
}

.wf-cell {
    width: 3.5rem;
    height: 3.5rem;
    background: var(--wf-cell-bg);
    border: 2px solid var(--wf-cell-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--wf-text);
    text-transform: uppercase;
    transition: all 0.3s ease;
}

.wf-cell.active {
    border-bottom: 4px solid var(--wf-cell-active-border);
}

.wf-cell.absent {
    border-color: var(--cell-text-error);
}

.wf-cell.present {
    color: var(--wf-present-bg);
}

.wf-cell.correct {
    color: var(--wf-correct-bg);
}

.wf-keyboard {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    max-width: 500px;
    touch-action: manipulation;
    margin: 1rem auto 0;
    padding-bottom: 2rem;
}

.wf-row {
    display: flex;
    justify-content: center;
    gap: 6px;
}

.wf-row.invalid-word {
    animation: h-shake 0.4s ease-in-out;
}

@keyframes h-shake {
    0% {
        transform: translateX(0);
    }

    20% {
        transform: translateX(-5px);
    }

    40% {
        transform: translateX(5px);
    }

    60% {
        transform: translateX(-5px);
    }

    80% {
        transform: translateX(5px);
    }

    100% {
        transform: translateX(0);
    }
}

.wf-key {
    background: var(--wf-key-bg);
    color: var(--wf-text);
    border: none;
    border-radius: 4px;
    font-size: 1.2rem;
    font-weight: 600;
    padding: 12px 0;
    flex: 1;
    min-width: 30px;
    max-width: 45px;
    cursor: pointer;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

.wf-key.wide {
    flex: 1.5;
    max-width: 70px;
    font-size: 0.9rem;
}

.wf-key:active {
    opacity: 0.8;
}

.wf-key.disabled {
    opacity: 0.2;
    pointer-events: none;
}

/* Word Search Specific Styles */
.ws-board-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    width: 100%;
    margin-top: 1rem;
}

.ws-grid {
    display: grid;
    gap: 4px;
    justify-content: center;
}

.ws-cell {
    /* Responsive sizing based on standard 12x12 grid */
    width: min(2.5rem, 7.5vw);
    height: min(2.5rem, 7.5vw);
    background: var(--ws-cell-bg);
    border: 1px solid var(--ws-cell-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: min(1.25rem, 4vw);
    font-weight: 600;
    color: var(--ws-text);
    text-transform: uppercase;
    cursor: pointer;
    user-select: none;
    transition: all 0.2s ease;
}

@media (min-width: 768px) {
    .ws-cell {
        width: 3rem;
        height: 3rem;
        font-size: 1.5rem;
    }
}

.ws-cell.active {
    background: var(--ws-cell-active-bg);
    color: var(--ws-cell-active-text);
    border-color: var(--ws-cell-active-bg);
    transform: scale(1.05);
}

.ws-cell.found {
    background: var(--ws-cell-found-bg);
    color: var(--ws-cell-found-text);
    border-color: var(--ws-cell-found-bg);
}

.ws-word-list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    max-width: 600px;
    padding: 1rem;
    background: var(--surface-color);
    border-radius: var(--border-radius-lg);
}

.ws-word {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--ws-text);
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius-sm);
    transition: all 0.3s ease;
}

.ws-word.found {
    color: var(--ws-word-text);
    text-decoration: line-through;
    opacity: 0.6;
}

/* =============================================================
   Global Table Reset (Bootstrap Override)
   ============================================================= */
.table,
.table> :not(caption)>*>* {
    background-color: transparent !important;
    --bs-table-bg: transparent !important;
    --bs-table-accent-bg: transparent !important;
    --bs-table-striped-bg: transparent !important;
    --bs-table-hover-bg: transparent !important;
    color: var(--text-primary) !important;
    border-color: var(--glass-border) !important;
}

.table thead th {
    color: var(--text-secondary) !important;
    border-bottom: 1px solid var(--glass-border) !important;
}

/* =============================================================
   §8 Theming Utility Classes (replace inline styles)
   ============================================================= */

/* Loading spinner containers */
.loading-container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    height: var(--loading-container-height, 400px);
}

.spinner-lg {
    width: var(--loading-spinner-size, 3rem);
    height: var(--loading-spinner-size, 3rem);
}

.spinner-xs {
    width: 0.75rem;
    height: 0.75rem;
}

/* Game Over icon and title (WordFind loss state) */
.game-over-icon {
    color: var(--lose-title-color);
    filter: drop-shadow(0 0 10px var(--accent-glow));
}

.game-over-title {
    background: var(--lose-title-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Error boundary detail panel */
.error-detail-panel {
    max-height: 400px;
    overflow-y: auto;
    background: var(--surface-color);
    padding: 10px;
    border-radius: var(--border-radius-sm);
}

.error-detail-pre {
    font-size: 0.8em;
    margin: 0;
    color: var(--text-primary);
    white-space: pre-wrap;
}

/* Nav helpers */
.nav-bottom-pad {
    padding-bottom: 2rem;
}

.nav-group-label {
    color: var(--text-secondary);
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

/* Log table column widths */
.log-col-timestamp {
    width: 200px;
}

.log-col-level {
    width: 100px;
}

/* =============================================================
   §10 Group Theme Manager UI
   ============================================================= */

.theme-manager {
    z-index: 100;
}

.theme-card-full {
    padding: 1.5rem;
    border: 1px solid var(--glass-border-bright);
}

.theme-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.25rem;
    margin-top: 1rem;
}

.theme-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    display: flex;
    flex-direction: column;
}

.theme-item:hover {
    transform: translateY(-4px);
    border-color: var(--accent-primary);
    box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.4);
}

.theme-item.active {
    border-color: var(--accent-primary);
    border-width: 2px;
    background: rgba(255, 255, 255, 0.05);
}

.theme-preview {
    height: 80px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-preview .accent-stripe {
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
}

.theme-preview .surface-preview {
    width: 60%;
    height: 40%;
    border-radius: 4px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.theme-info {
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

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

.theme-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.small-badge {
    font-size: 0.65rem;
    padding: 0.2rem 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
}

@keyframes animate-slide-down {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-slide-down {
    animation: animate-slide-down 0.4s ease-out forwards;
}

/* --- Theme Editor Modal --- */
.theme-editor-modal {
    max-width: 450px !important;
}

.theme-editor-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.editor-field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.editor-field label {
    font-size: 0.85rem;
    font-weight: 600;
    opacity: 0.8;
}

.editor-field input[type="color"] {
    width: 100%;
    height: 40px;
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    background: var(--glass-bg);
    cursor: pointer;
}

.theme-preview-large {
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.preview-surface {
    padding: 1.5rem;
    border-radius: var(--border-radius-md);
    position: relative;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.preview-accent {
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    border-radius: 4px 0 0 4px;
}


.preview-sub {
    font-size: 0.85rem;
    opacity: 0.7;
    margin-top: 0.25rem;
}

/* =============================================================
   Bootstrap Overrides for Dynamic Theming
   ============================================================= */
.btn-primary {
    background-color: var(--accent-primary) !important;
    border-color: var(--accent-primary) !important;
    color: var(--text-on-accent, #ffffff) !important;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background-color: var(--accent-primary) !important;
    border-color: var(--accent-primary) !important;
    color: var(--text-on-accent, #ffffff) !important;
    filter: brightness(1.2);
}

.bg-primary {
    background-color: var(--accent-primary) !important;
}

.text-primary {
    color: var(--accent-primary) !important;
}

.badge.bg-primary-soft {
    background-color: color-mix(in srgb, var(--accent-primary) 20%, transparent);
    color: var(--accent-primary);
}
/* Offline banner */
.offline-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: #b45309;
    color: #fff;
    text-align: center;
    padding: 8px 16px;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.01em;
}