/**
 * Sudoku Styling
 * Responsive design for Sudoku game interface
 */

/* Container */
.sudoku-container {
    max-width: 600px;
    margin: 2rem auto;
    padding: 1.5rem;
    background: var(--color-bg-card);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.result-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background: var(--color-bg-card);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Header */
.sudoku-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.sudoku-header h1 {
    margin: 0;
    font-size: 2rem;
    color: var(--color-text-main);
}

/* Difficulty badges - use generic classes from theme.css */
.difficulty-badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.85rem;
}

/* These are defined in theme.css as .diff-beginner, .diff-easy, etc.
   but keeping legacy class names for backwards compatibility */
.difficulty-beginner {
    background: var(--color-accent-sky);
    color: var(--color-sky-700);
}

.difficulty-easy {
    background: var(--color-accent-green);
    color: var(--color-emerald-700);
}

.difficulty-medium {
    background: var(--color-accent-amber);
    color: var(--color-amber-700);
}

.difficulty-hard {
    background: var(--color-accent-rose);
    color: var(--color-rose-700);
}

.difficulty-expert {
    background: var(--color-accent-rose);
    color: var(--color-rose-800);
}

/* Game Info */
.game-info {
    display: flex;
    justify-content: space-around;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--color-bg-hover);
    border-radius: 8px;
}

.info-item {
    text-align: center;
}

.info-item .label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.info-item .value {
    display: block;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-text-main);
}

/* Sudoku Grid - uses puzzle-cell base from theme.css */
.sudoku-grid {
    display: grid;
    grid-template-columns: repeat(9, 1fr);
    gap: 0;
    border: 2px solid var(--color-text-main);
    box-sizing: border-box;
    background: var(--color-text-main);
    aspect-ratio: 1;
    max-width: 100%;
    user-select: none;
    -webkit-user-select: none;
}

.sudoku-cell {
    position: relative;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-main);
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1;
    transition: background-color 0.2s;
    cursor: pointer;
    font-size: clamp(0.875rem, 4vw, 1.875rem);
    font-weight: bold;
    color: var(--color-text-main);
    user-select: none;
    box-sizing: border-box;
    overflow: hidden;
}

.sudoku-cell.fixed {
    cursor: default;
}

.sudoku-cell.border-right {
    border-right: 3px solid var(--color-text-main);
}

.sudoku-cell.border-bottom {
    border-bottom: 3px solid var(--color-text-main);
}

.sudoku-cell.fixed {
    /*background: var(--color-bg-hover);*/
    font-weight: bold;
    color: var(--color-text-main);
    cursor: default;
}

.sudoku-cell.user-input {
    color: var(--color-primary);
}

.sudoku-cell.selected {
    background: var(--color-sky-300) !important;
}

.sudoku-cell.multi-selected {
    background: var(--color-sky-200) !important;
    outline: 2px solid var(--color-sky-400);
    outline-offset: -2px;
}

.sudoku-cell.highlight-same {
    background: var(--color-sky-200);
}

.sudoku-cell.highlight-related {
    background: var(--color-sky-100);
}

.sudoku-cell.correct {
    background: var(--color-accent-green);
}

.sudoku-cell.error {
    background: var(--color-error-bg) !important;
    color: var(--color-error) !important;
    border-color: var(--color-error) !important;
}

.sudoku-cell.hint {
    background: var(--color-accent-amber);
}

/* Hint icon - permanent lightbulb indicator */
.hint-icon {
    position: absolute;
    top: 2px;
    right: 2px;
    width: clamp(10px, 2vw, 16px);
    height: clamp(10px, 2vw, 16px);
    color: var(--color-warning);
    opacity: 0.9;
    pointer-events: none;
    z-index: 10;
    filter: drop-shadow(0 1px 2px rgba(255, 255, 255, 0.8));
}

/* Temporary flash effect when hint is given */
.sudoku-cell.hint-flash {
    background: linear-gradient(135deg, var(--color-accent-amber) 0%, var(--color-amber-300) 100%) !important;
    animation: hintFadeOut 2s ease-out forwards;
}

@keyframes hintFadeOut {
    0% {
        background: linear-gradient(135deg, var(--color-accent-amber) 0%, var(--color-amber-300) 100%);
        box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-warning) 30%, transparent);
    }

    100% {
        background: var(--color-bg-card);
        box-shadow: none;
    }
}

.cell-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--color-text-main);
}

.cell-input {
    width: 100%;
    height: 100%;
    border: none;
    background: transparent;
    text-align: center;
    font-size: 2rem;
    font-weight: bold;
    color: var(--color-primary);
    outline: none;
    -moz-appearance: textfield;
}

.cell-input::-webkit-inner-spin-button,
.cell-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.cell-input:disabled {
    color: var(--color-text-muted);
}

.pencil-marks {
    position: absolute;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    inset: 0;
    width: 100%;
    height: 100%;
    padding: 1px;
    box-sizing: border-box;
    pointer-events: none;
    font-size: clamp(0.5rem, 1.5vw, 0.8rem);
    color: var(--color-text-muted);
    line-height: 1.1;
}

.note-num {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Number Pad */
.numpad-btn {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-primary);
    height: 3.5rem;
    width: 100%;
    border-radius: 0.75rem;
    background: var(--color-bg-hover);
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.numpad-btn:hover {
    background: var(--color-accent-sky);
}

.numpad-btn:active {
    background: var(--color-sky-300);
}

/* Highlight for helper targets */
.sudoku-cell.hint-target {
    background-color: var(--color-accent-amber) !important;
    box-shadow: inset 0 0 0 4px var(--color-amber-600) !important;
    animation: hintPulse 2s infinite;
    z-index: 10;
    position: relative;
}

@keyframes hintPulse {
    0% {
        box-shadow: inset 0 0 0 4px var(--color-amber-600);
        background-color: var(--color-accent-amber);
    }

    50% {
        box-shadow: inset 0 0 0 4px var(--color-warning);
        background-color: var(--color-amber-300);
    }

    100% {
        box-shadow: inset 0 0 0 4px var(--color-amber-600);
        background-color: var(--color-accent-amber);
    }
}

/* Highlight for wrong cells detected during hint trigger */
.sudoku-cell.hint-wrong {
    background-color: var(--color-error-bg) !important;
    box-shadow: inset 0 0 0 3px var(--color-error) !important;
    animation: hintWrongPulse 0.5s ease-in-out 4;
    z-index: 10;
    position: relative;
}

@keyframes hintWrongPulse {
    0% {
        box-shadow: inset 0 0 0 3px var(--color-error);
        background-color: var(--color-error-bg);
    }

    50% {
        box-shadow: inset 0 0 0 4px var(--color-rose-600);
        background-color: var(--color-rose-200);
    }

    100% {
        box-shadow: inset 0 0 0 3px var(--color-error);
        background-color: var(--color-error-bg);
    }
}

/* Legacy style cleanup - styles moved to Tailwind classes */
@media (min-width: 768px) {
    /* Height handled by h-14 class */
}



.number-btn:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-primary);
}

.number-btn:active {
    transform: scale(0.95);
}

.erase-btn {
    background: var(--color-accent-rose);
    border-color: var(--color-rose-700);
}

.erase-btn:hover {
    background: var(--color-rose-200);
}

/* Game Controls - NOTE: Use .btn-primary, .btn-secondary from theme.css instead */
.game-controls {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    margin-bottom: 1rem;
}

/* Legacy button styles - prefer using theme.css classes */
.btn {
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

/* Legacy .btn-primary/.btn-secondary/.btn-info/.btn-warning/.btn-success removed.
   Use theme.css classes instead (they inherit --color-primary etc.) */

.btn:active {
    transform: scale(0.98);
}

/* Error Message */
.error-message {
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
}

.error-message.error {
    background: var(--color-error-bg);
    color: var(--color-error-text);
}

.error-message.success {
    background: var(--color-success-bg);
    color: var(--color-success-text);
}

/* Result Page */
.result-header {
    text-align: center;
    margin-bottom: 2rem;
}

.result-icon {
    margin-bottom: 1rem;
}

.result-header h1 {
    margin: 0.5rem 0;
    font-size: 2.5rem;
    color: var(--color-text-main);
}

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

.result-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    padding: 1.5rem;
    background: var(--color-bg-hover);
    border-radius: 12px;
    text-align: center;
}

.stat-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: bold;
    color: var(--color-text-main);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.error-details {
    padding: 1rem;
    background: var(--color-accent-rose);
    border-radius: 8px;
    margin-bottom: 1.5rem;
    text-align: center;
}

.error-details h3 {
    margin-top: 0;
    color: var(--color-rose-800);
}

.perfect-badge,
.achievement-badge {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.perfect-badge {
    background: var(--color-accent-amber);
    color: var(--color-amber-800);
}

.achievement-badge {
    background: var(--color-accent-sky);
    color: var(--color-sky-800);
}

.badge-icon {
    font-size: 1.5rem;
}

.result-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

/* Leaderboard */
.leaderboard-section {
    margin-bottom: 2rem;
}

.leaderboard-section h3 {
    margin-bottom: 1rem;
    color: var(--color-text-main);
}

.leaderboard-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-bg-card);
    border-radius: 8px;
    overflow: hidden;
}

.leaderboard-table thead {
    background: var(--color-bg-hover);
}

.leaderboard-table th {
    padding: 0.75rem;
    text-align: left;
    font-weight: 600;
    color: var(--color-text-muted);
}

.leaderboard-table td {
    padding: 0.75rem;
    border-top: 1px solid var(--color-border-main);
}

.leaderboard-table tr.current-user {
    background: var(--color-accent-sky);
}

.avatar-small {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    vertical-align: middle;
    margin-right: 0.5rem;
}

/* Share Section */
.share-section {
    text-align: center;
    padding: 1.5rem;
    background: var(--color-bg-hover);
    border-radius: 8px;
}

.share-section h3 {
    margin-top: 0;
}

.share-buttons {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-social {
    background: var(--color-bg-card);
    color: var(--color-text-main);
    border: 2px solid var(--color-border-main);
}

.btn-social:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Responsive Design */
@media (max-width: 600px) {
    .sudoku-container {
        padding: 1rem;
    }

    .game-controls {
        grid-template-columns: 1fr;
    }

    .result-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .result-actions {
        flex-direction: column;
    }
}

@media (max-width: 400px) {
    .sudoku-grid {
        border-width: 1.5px;
    }

    .sudoku-cell.border-right {
        border-right-width: 2px;
    }

    .sudoku-cell.border-bottom {
        border-bottom-width: 2px;
    }
}