/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #1a73e8;
    --secondary-color: #34a853;
    --danger-color: #d33b27;
    --warning-color: #fbbc04;
    --dark-text: #202124;
    --light-text: #5f6368;
    --border-color: #dadce0;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    /* Sizing */
    --card-min-width: 300px;
    --header-height: 80px;
    --border-radius: 8px;
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: #333333;
    color: var(--dark-text);
    line-height: 1.5;
    min-height: 100vh;
}

html {
    background-color: #e8e8e8;
}

/* Header */
.header {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

    .header h1 {
        font-size: 32px;
        font-weight: 600;
    }

/* Site credit — fixed top-right, main page only (index.html) */
.site-credit {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-lg);
    z-index: 100;
    margin: 0;
    font-size: 13px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    background-color: rgba(0, 0, 0, 0.35);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    letter-spacing: 0.02em;
    pointer-events: none;
}

/* Filters Container */
.filters-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: var(--bg-white);
    border-radius: var(--border-radius);
    margin: 0 var(--spacing-lg) var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    align-items: center;
}

.search-input,
.filter-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 14px;
    font-family: inherit;
    min-width: 150px;
    height: 38px;
    line-height: normal;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

.filters-container > .filter-select,
.filters-container .rank-filter-input {
    width: 165px;
    flex: 0 0 auto;
}

.search-input {
    flex: 1;
    min-width: 200px;
}

    .search-input:hover,
    .filter-select:hover {
        border-color: var(--primary-color);
        background-color: #f8f9fa;
    }

    .search-input:focus,
    .filter-select:focus {
        outline: none;
        border-color: var(--primary-color);
        box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
    }

.rank-filter-group {
    display: flex;
    align-items: center;
    width: 165px;
    flex: 0 0 auto;
    align-self: center;
    position: relative;
}

.rank-filter-input {
    width: 100%;
    -moz-appearance: textfield;
    appearance: textfield;
}

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

.rank-filter-input.input-invalid {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 3px rgba(211, 59, 39, 0.15);
}

.rank-filter-error {
    position: absolute;
    top: calc(100% + var(--spacing-xs));
    left: 0;
    font-size: 12px;
    color: var(--danger-color);
    white-space: nowrap;
}

/* Buttons */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

a.btn {
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

    .btn-primary:hover {
        background-color: #1557b0;
        box-shadow: var(--shadow-md);
    }

.btn-secondary {
    background-color: var(--bg-light);
    color: var(--dark-text);
    border: 1px solid var(--border-color);
}

    .btn-secondary:hover {
        background-color: #f0f0f0;
        border-color: var(--dark-text);
    }

/* Players Grid */
.players-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(var(--card-min-width), 1fr));
    gap: var(--spacing-lg);
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    margin: 0 auto;
    max-width: 1400px;
}

/* Player Card */
.player-card {
    background-color: #1902e9fd;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

    .player-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-lg);
    }

.player-card-image {
    width: 100%;
    height: 200px;
    background-color: #333333;
    object-fit: cover;
    object-position: top center;
}

.player-card-content {
    padding: var(--spacing-md);
}

.player-rank {
    font-size: 10px;
    font-weight: 700;
    color: white;
    background-color: var(--primary-color);
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    margin-bottom: var(--spacing-sm);
}

.player-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: white;
    background-color: rgba(0, 0, 0, 0.5);
    padding: 8px 12px;
    border-radius: 4px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.7);
    display: inline-block;
    max-width: 100%;
}

.player-position,
.player-team {
    font-size: 12px;
    color: var(--light-text);
    margin-bottom: var(--spacing-xs);
}

.player-badges {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    color: white;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.7);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

/* Position-specific badge colors */
.badge.pos-QB { background-color: #e74c3c; color: white; }
.badge.pos-RB { background-color: #3498db; color: white; }
.badge.pos-WR { background-color: #2ecc71; color: white; }
.badge.pos-TE { background-color: #f39c12; color: white; }
.badge.pos-OL { background-color: #9b59b6; color: white; }
.badge.pos-DL { background-color: #e67e22; color: white; }
.badge.pos-LB { background-color: #1abc9c; color: white; }
.badge.pos-CB { background-color: #34495e; color: white; }
.badge.pos-S { background-color: #95a5a6; color: white; }
.badge.pos-K { background-color: #16a085; color: white; }

/* Team badge styling */
.badge.team-badge {
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* Year badge styling */
.badge.year-badge {
    background-color: #7d3c98;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.badge.mvp-badge {
    background-color: #b8860b;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.badge.injured-badge {
    background-color: #c0392b;
    color: #ffffff;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.badge.suspended-badge {
    background-color: #000000;
    color: #f50101;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.badge.retired-badge {
    background-color: #000000;
    color: #ffffff;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.badge.dnp-badge {
    background-color: #000000;
    color: #ffffff;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.badge.year-badge.mvp-badge {
    background: linear-gradient(135deg, #7d3c98 0%, #b8860b 100%);
}

.player-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    font-size: 12px;
}

.stat {
    padding: var(--spacing-sm);
    background-color: var(--bg-light);
    border-radius: 4px;
    text-align: center;
    border-left: 3px solid var(--primary-color);
    transition: background-color 0.2s ease, transform 0.2s ease;
}

    .stat:hover {
        background-color: #e8f0fe;
        transform: translateY(-2px);
    }

.stat-value {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 14px;
}

.stat-label {
    color: var(--light-text);
    font-size: 10px;
}

/* Loading Spinner */
.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    gap: var(--spacing-md);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-spinner p {
    color: var(--light-text);
    font-size: 14px;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Error Message */
.error-message {
    background-color: #fce4e4;
    border-left: 4px solid var(--danger-color);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg);
    border-radius: var(--border-radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

    .error-message p {
        color: var(--danger-color);
        font-weight: 500;
    }

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--light-text);
    font-size: 16px;
    grid-column: 1 / -1;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* About Page */
.about-container {
    max-width: 720px;
    margin: 0 auto var(--spacing-xl);
    padding: 0 var(--spacing-lg);
}

.about-content {
    background-color: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-xl);
}

.about-content p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--dark-text);
    margin-bottom: var(--spacing-lg);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header h1 {
        font-size: 24px;
    }

    .filters-container {
        flex-direction: column;
        padding: var(--spacing-md);
        margin: 0 var(--spacing-md) var(--spacing-md);
    }

    .search-input,
    .filter-select,
    .filters-container > .filter-select,
    .filters-container .rank-filter-input,
    .rank-filter-group {
        width: 100%;
        min-width: unset;
    }

    .btn {
        width: 100%;
    }

    .players-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: var(--spacing-md);
        padding: 0 var(--spacing-md) var(--spacing-md);
    }

    .player-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .site-credit {
        font-size: 11px;
        top: var(--spacing-sm);
        right: var(--spacing-md);
    }

    .header {
        padding: var(--spacing-md);
    }

        .header h1 {
            font-size: 20px;
        }

    .filters-container {
        margin: 0 var(--spacing-sm) var(--spacing-sm);
        padding: var(--spacing-sm);
    }

    .players-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        padding: 0 var(--spacing-sm) var(--spacing-sm);
    }
}