/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #4a90e2;
    --color-primary-dark: #357abd;
    --color-text: #333;
    --color-text-light: #666;
    --color-text-lighter: #999;
    --color-bg: #f8f9fa;
    --color-white: #ffffff;
    --color-border: #e0e0e0;
    --color-shadow: rgba(0, 0, 0, 0.1);
    --color-success: #28a745;
    --color-warning: #ffc107;
    --color-danger: #dc3545;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --border-radius: 8px;
    --max-width: 1200px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Header */
header {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-lg);
}

.site-title {
    font-size: 1.5rem;
    font-weight: 600;
}

.site-title a {
    color: var(--color-text);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.site-title a:hover {
    color: var(--color-primary);
}

/* Main Content */
main {
    flex: 1;
    padding: var(--spacing-lg) 0;
}

/* Footer */
footer {
    background-color: var(--color-white);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* Typography */
h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.lead {
    font-size: 1.25rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    display: grid;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.feature-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px var(--color-shadow);
}

.feature-card h2 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card ul {
    margin-left: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.feature-card li {
    margin-bottom: var(--spacing-xs);
}

/* Getting Started Section */
.getting-started {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px var(--color-shadow);
}

.steps {
    list-style: none;
    counter-reset: step-counter;
    margin-left: 0;
}

.steps li {
    counter-increment: step-counter;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    border-left: 3px solid var(--color-primary);
    background-color: var(--color-bg);
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    position: relative;
    padding-left: 3.5rem;
}

.steps li::before {
    content: counter(step-counter);
    position: absolute;
    left: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--color-primary);
    color: var(--color-white);
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

/* Stats Header */
.stats-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

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

.user-id {
    font-size: 0.85rem;
    color: var(--color-text-lighter);
    margin-top: var(--spacing-xs);
}

/* Summary Section */
.summary-section {
    margin-bottom: var(--spacing-xl);
}

.summary-grid {
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.stat-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px var(--color-shadow);
    text-align: center;
}

.stat-card.highlight {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.stat-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.8;
}

.stat-detail {
    font-size: 0.9rem;
    margin-top: var(--spacing-xs);
    opacity: 0.7;
}

/* Personal Bests Section */
.bests-section {
    margin-bottom: var(--spacing-xl);
}

.bests-grid {
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.best-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px var(--color-shadow);
    border-top: 4px solid var(--color-success);
}

.best-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    font-size: 1.1rem;
}

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

.best-achievement {
    text-align: center;
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.achievement-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-success);
    margin-bottom: var(--spacing-xs);
}

.achievement-label {
    font-size: 0.9rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.best-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.detail-item {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* Badge */
.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-easy {
    background-color: #d4edda;
    color: #155724;
}

.badge-medium {
    background-color: #fff3cd;
    color: #856404;
}

.badge-hard {
    background-color: #f8d7da;
    color: #721c24;
}

/* Recent Games Section */
.recent-section {
    margin-bottom: var(--spacing-xl);
}

.table-responsive {
    overflow-x: auto;
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px var(--color-shadow);
}

.games-table {
    width: 100%;
    border-collapse: collapse;
}

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

.games-table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-light);
    border-bottom: 2px solid var(--color-border);
}

.games-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.games-table tbody tr:hover {
    background-color: var(--color-bg);
}

.games-table tbody tr:last-child td {
    border-bottom: none;
}

.game-badge {
    display: inline-block;
    white-space: nowrap;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px var(--color-shadow);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state h2 {
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.empty-instructions {
    text-align: left;
    max-width: 400px;
    margin: var(--spacing-lg) auto 0;
    padding: var(--spacing-md);
    background-color: var(--color-bg);
    border-radius: var(--border-radius);
}

.empty-instructions h3 {
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.empty-instructions ul {
    list-style: none;
    margin-left: 0;
}

.empty-instructions li {
    margin-bottom: var(--spacing-xs);
}

/* Error Page */
.error-page {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px var(--color-shadow);
}

.error-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.error-message {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.error-suggestions {
    text-align: left;
    max-width: 500px;
    margin: var(--spacing-lg) auto;
    padding: var(--spacing-md);
    background-color: var(--color-bg);
    border-radius: var(--border-radius);
}

.error-suggestions h2 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
}

.error-suggestions ul {
    margin-left: var(--spacing-md);
}

.error-suggestions li {
    margin-bottom: var(--spacing-xs);
}

.btn-home {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--border-radius);
    font-weight: 600;
    margin-top: var(--spacing-lg);
    transition: background-color 0.2s;
}

.btn-home:hover {
    background-color: var(--color-primary-dark);
    text-decoration: none;
}

/* Game Selector Section */
.game-selector-section {
    margin-bottom: var(--spacing-xl);
}

.section-subtitle {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.game-cards-grid {
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.game-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px var(--color-shadow);
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
}

.game-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--color-shadow);
}

.game-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.game-card-icon {
    font-size: 2rem;
}

.game-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.game-card-stats {
    flex: 1;
    margin-bottom: var(--spacing-md);
}

.game-card-count {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.game-card-recent {
    font-size: 0.9rem;
    color: var(--color-text);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: var(--spacing-sm);
    background: var(--color-bg);
    border-radius: 4px;
}

.recent-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.recent-date {
    font-weight: 600;
    color: var(--color-text);
    text-align: center;
}

.recent-result {
    font-family: 'SF Mono', Monaco, monospace;
    color: var(--color-primary);
    font-weight: 600;
    text-align: center;
}

.recent-details {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.recent-grid {
    font-size: 0.75rem;
    line-height: 1;
    margin: 0.5rem auto 0 auto;
    padding: 0;
    font-family: 'Apple Color Emoji', 'Segoe UI Emoji', sans-serif;
    text-align: left;
    width: fit-content;
}

.game-card-button {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    font-size: 1rem;
}

.game-card-button:hover {
    background-color: var(--color-primary-dark);
}

/* Game Details Section */
.game-details-section {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px var(--color-shadow);
    margin-bottom: var(--spacing-xl);
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.game-details-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-border);
}

.game-details-header h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
}

.game-details-icon {
    font-size: 1.5rem;
}

.close-details-button {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-bg);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.close-details-button:hover {
    background-color: var(--color-border);
}

/* Stats Table */
.stats-table-container {
    margin-bottom: var(--spacing-xl);
}

.stats-table-container h3 {
    margin-bottom: var(--spacing-md);
}

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

.stats-table th {
    text-align: left;
    padding: var(--spacing-md);
    font-weight: 600;
    color: var(--color-text);
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
}

.stats-table td {
    padding: var(--spacing-md);
    color: var(--color-text-light);
    border-bottom: 1px solid var(--color-border);
}

.stats-table tr:last-child td,
.stats-table tr:last-child th {
    border-bottom: none;
}

.stats-table th[colspan="2"] {
    background-color: var(--color-primary);
    color: var(--color-white);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

/* Component: Key-Value List */
.component-key-value-list {
    width: 100%;
    background-color: var(--color-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.component-key-value-list__item {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-white);
}

.component-key-value-list__item:last-child {
    border-bottom: none;
}

.component-key-value-list__label {
    flex: 0 0 50%;
    padding: var(--spacing-md);
    font-weight: 600;
    color: var(--color-text);
}

.component-key-value-list__value {
    flex: 1;
    padding: var(--spacing-md);
    color: var(--color-text-light);
    text-align: left;
}

/* Component: Monospace Block */
.component-monospace-block {
    margin-top: var(--spacing-md);
}

.component-monospace-block__title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.component-monospace-block__content {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    font-size: 1.2rem;
    line-height: 1.3;
    white-space: pre;
    overflow-x: auto;
    padding: var(--spacing-md);
    background-color: var(--color-bg);
    border-radius: var(--border-radius);
    margin: 0;
}

.no-stats-message {
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--color-text-light);
    background-color: var(--color-bg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-xl);
}

/* Game History */
.game-history-container {
    margin-top: var(--spacing-xl);
}

.game-history-container h3 {
    margin-bottom: var(--spacing-md);
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

/* Grid Calendar Layout for Clues by Sam History */
.history-grid {
    display: grid;
    gap: 1rem;
    margin-bottom: var(--spacing-md);
}

/* Responsive breakpoints */
/* Mobile: 1 column */
@media (max-width: 767px) {
    .history-grid {
        grid-template-columns: 1fr;
    }
}

/* Tablet: 2 columns */
@media (min-width: 768px) and (max-width: 1023px) {
    .history-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop: 3 columns */
@media (min-width: 1024px) and (max-width: 1439px) {
    .history-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Large desktop: 4 columns */
@media (min-width: 1440px) {
    .history-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Individual grid item (compact box) */
.grid-item {
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.grid-item:hover {
    border-color: var(--color-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.grid-item-date {
    font-weight: bold;
    font-size: 0.85rem;
    color: var(--color-text);
    text-align: center;
}

.grid-item-meta {
    display: flex;
    justify-content: center;
    gap: 0.25rem;
    font-size: 0.8rem;
    color: var(--color-text-light);
}

.grid-item-time {
    font-weight: 600;
    color: var(--color-primary);
}

.grid-item-difficulty {
    color: var(--color-text-light);
}

.grid-item-grid {
    margin: 0;
    display: flex;
    justify-content: center;
}

.grid-item-grid .component-monospace-block {
    margin-top: 0;
}

.grid-item-grid .component-monospace-block__content {
    font-size: 1.1rem;
    line-height: 1.3;
    padding: 0;
    background-color: transparent;
    text-align: left;
}

.history-item {
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-primary);
}

.history-item-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.history-item-identifier {
    font-weight: 600;
    color: var(--color-text);
}

.history-item-result {
    font-weight: 700;
    color: var(--color-primary);
    font-size: 1.1rem;
}

.history-item-details {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.loading-indicator {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--color-text-light);
    font-style: italic;
}

.error-message {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--color-danger);
    background-color: #f8d7da;
    border-radius: var(--border-radius);
}

.load-more-button {
    width: 100%;
    padding: var(--spacing-md);
    background-color: var(--color-bg);
    color: var(--color-text);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1rem;
}

.load-more-button:hover {
    background-color: var(--color-border);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Emoji Legend */
.emoji-legend {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--color-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.emoji-legend__title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.emoji-legend__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.emoji-legend__item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.emoji-legend__icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.emoji-legend__text {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.4;
}

/* Responsive Design */
@media (min-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .container {
        padding: 0 var(--spacing-lg);
    }

    .features {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .game-cards-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 767px) {
    /* Mobile-specific table styling */
    .games-table thead {
        display: none;
    }

    .games-table tbody,
    .games-table tr,
    .games-table td {
        display: block;
    }

    .games-table tr {
        margin-bottom: var(--spacing-md);
        border: 1px solid var(--color-border);
        border-radius: var(--border-radius);
        padding: var(--spacing-sm);
    }

    .games-table td {
        padding: var(--spacing-xs) var(--spacing-sm);
        border: none;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .games-table td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--color-text-light);
        font-size: 0.85rem;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }

    .games-table td:first-child {
        padding-top: var(--spacing-sm);
    }

    .games-table td:last-child {
        padding-bottom: var(--spacing-sm);
    }
    
    /* Mobile game cards */
    .game-cards-grid {
        grid-template-columns: 1fr;
    }
    
    /* Mobile game details */
    .game-details-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .close-details-button {
        width: 100%;
        text-align: center;
    }
    
    /* Mobile history items */
    .history-item-main {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .history-item-result {
        font-size: 1rem;
    }
}

/* Score Distribution Bar Chart */
.score-distribution-container {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px var(--color-shadow);
    margin-top: var(--spacing-md);
}

.score-distribution-container h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.bar-chart {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.bar-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.bar-label {
    min-width: 2rem;
    font-weight: 600;
    color: var(--color-text);
    text-align: right;
}

.bar-container {
    flex: 1;
    background: var(--color-border);
    border-radius: 4px;
    height: 32px;
    position: relative;
    overflow: hidden;
}

.bar-fill {
    background: var(--color-primary);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: var(--spacing-xs);
    border-radius: 4px;
    transition: width 0.3s ease;
    min-width: 32px;
}

.bar-fill--loss {
    background: var(--color-error);
}

.bar-count {
    color: var(--color-white);
    font-weight: 600;
    font-size: 0.875rem;
}

/* Grid Display Styles */
.grid-expandable {
    margin-top: var(--spacing-sm);
}

.grid-toggle {
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-bg);
    border-radius: 4px;
    color: var(--color-primary);
    font-weight: 500;
    display: inline-block;
    user-select: none;
}

.grid-toggle:hover {
    background: var(--color-border);
}

.grid-toggle::marker {
    color: var(--color-primary);
}

.grid-display {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-bg);
    border-radius: 4px;
}

.grid-inline {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-bg);
    border-radius: 4px;
}

.grid-content {
    font-family: 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', monospace;
    font-size: 1.5rem;
    line-height: 1.4;
    margin: 0;
    white-space: pre;
    overflow-x: auto;
}

/* Mobile adjustments for bar charts */
@media (max-width: 768px) {
    .bar-chart {
        gap: var(--spacing-xs);
    }
    
    .bar-row {
        gap: var(--spacing-xs);
    }
    
    .bar-label {
        min-width: 1.5rem;
        font-size: 0.875rem;
    }
    
    .bar-container {
        height: 28px;
    }
    
    .bar-count {
        font-size: 0.75rem;
    }
    
    .grid-content {
        font-size: 1.25rem;
    }
}

/* Modern Stats Card Layout */
.modern-stats-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

/* Overview Grid - 3 columns on desktop */
.stats-overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

/* Stat Cards */
.stat-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: 0 2px 4px var(--color-shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--color-shadow);
}

.stat-card--highlight {
    border-top: 3px solid var(--color-primary);
}

.stat-card--compact {
    padding: var(--spacing-sm);
}

.stat-card__title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.stat-card__subtitle {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Stat Circle - Central large number */
.stat-card__visual {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.stat-circle {
    text-align: center;
    padding: var(--spacing-sm) 0;
}

.stat-circle__number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.stat-circle__label {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-top: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Progress Ring - Circular percentage */
.stat-visual-breakdown {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

.progress-ring {
    position: relative;
    width: 120px;
    height: 120px;
}

.progress-ring svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.progress-ring__bg {
    fill: none;
    stroke: #f59e0b; /* Amber/yellow for mistakes portion */
    stroke-width: 8;
}

.progress-ring__progress {
    fill: none;
    stroke: var(--color-success);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 251.2; /* 2 * PI * 40 */
    stroke-dashoffset: calc(251.2 - (251.2 * var(--progress) / 100));
    transition: stroke-dashoffset 0.5s ease;
}

.progress-ring__text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.progress-ring__value {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-success);
    line-height: 1;
}

.progress-ring__label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Legend */
.stat-breakdown-legend {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--color-text);
}

.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.legend-dot--perfect {
    background: var(--color-success);
}

.legend-dot--regular {
    background: #f59e0b; /* Amber/yellow for mistakes */
}

/* Stat Pairs - Side by side metrics */
.stat-pairs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--spacing-md);
}

.stat-pair {
    text-align: center;
}

.stat-pair__value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.stat-pair__value--large {
    font-size: 2.5rem;
    color: var(--color-warning);
}

.stat-pair__label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-top: 0.25rem;
}

/* Time Statistics Section */
.stats-time-section {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: 0 2px 4px var(--color-shadow);
}

/* Collapsible section styling */
.stats-time-section[open] {
    padding-bottom: var(--spacing-md);
}

.section-title-toggle {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    cursor: pointer;
    list-style: none;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: background 0.2s;
}

.section-title-toggle:hover {
    background: var(--color-bg);
}

.section-title-toggle::-webkit-details-marker {
    display: none;
}

.toggle-hint {
    font-size: 0.85rem;
    color: var(--color-text-light);
    font-weight: normal;
}

.stats-time-section summary::before {
    content: '▶';
    display: inline-block;
    margin-right: 0.5rem;
    transition: transform 0.2s;
}

.stats-time-section[open] summary::before {
    transform: rotate(90deg);
}

.section-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

/* Stat List - Vertical list of label/value pairs */
.stat-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem;
    background: var(--color-bg);
    border-radius: 4px;
    transition: background 0.2s;
}

.stat-item:hover {
    background: var(--color-border);
}

.stat-item__label {
    font-size: 0.9rem;
    color: var(--color-text-light);
    font-weight: 500;
}

.stat-item__value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    font-family: 'SF Mono', Monaco, monospace;
}

.stat-item__value--primary {
    color: var(--color-primary);
}

.stat-item__value--success {
    color: var(--color-success);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .stats-overview-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-circle__number {
        font-size: 2.5rem;
    }
    
    .progress-ring {
        width: 100px;
        height: 100px;
    }
    
    .progress-ring__value {
        font-size: 1.5rem;
    }
    
    .stat-pairs {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modern-stats-container {
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .stat-card {
        padding: var(--spacing-sm);
    }
    
    .stat-card__title {
        font-size: 1rem;
    }
    
    .stat-pair__value {
        font-size: 1.5rem;
    }
    
    .stat-pair__value--large {
        font-size: 2rem;
    }
}