/* Chess.com Inspired Styles */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans:wght@400;600;700&display=swap');

:root {
    /* Chess.com Color Palette */
    --chess-green: #81b64c;
    --chess-green-dark: #769656;
    --chess-brown: #ecca8c;
    --chess-brown-dark: #b58863;
    --chess-bg-dark: #312e2b;
    --chess-bg-darker: #262421;
    --chess-text: #dbdbdb;
    --chess-text-secondary: #a6a6a6;
    --chess-accent: #7fa650;
    --chess-hover: #8fae5d;
    
    /* Move evaluation colors (Chess.com style) */
    --brilliant: #1baca6;
    --great: #5d9cec;
    --best: #96bc4b;
    --excellent: #96af8b;
    --good: #96bc4b;
    --book: #a88865;
    --inaccuracy: #f0c15c;
    --mistake: #e58f2a;
    --blunder: #b33430;
    --miss: #dbac16;
}

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

body {
    font-family: 'Noto Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--chess-bg-dark);
    color: var(--chess-text);
    min-height: 100vh;
    padding: 0;
}

/* Header - Transparent with centered text */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0;
}

header {
    background: transparent; /* Changed from var(--chess-bg-darker) */
    padding: 40px 40px 20px 40px; /* Added top padding */
    border-bottom: none; /* Removed border */
    box-shadow: none; /* Removed shadow */
    text-align: center; /* Centered text */
}

header h1 {
    font-size: 2.5rem; /* Slightly larger */
    color: var(--chess-text);
    font-weight: 700;
    display: inline-flex; /* Changed from flex to inline-flex for centering */
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    justify-content: center; /* Center the content */
}

header h1::before {
    content: none;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--chess-text-secondary);
    font-weight: 400;
}

/* Navigation (for future pages) */
nav {
    margin-top: 20px;
    padding: 15px 0;
    border-top: 1px solid rgba(129, 182, 76, 0.2);
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 30px;
    padding: 0;
}

nav ul li {
    padding: 0;
}

nav ul li::before {
    content: none; /* Remove bullet point */
}

nav a {
    color: var(--chess-text);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.2s;
    padding: 8px 16px;
    border-radius: 4px;
    display: block;
}

nav a:hover {
    color: var(--chess-green);
    background: rgba(129, 182, 76, 0.1);
}

nav a.active {
    color: var(--chess-green);
    background: rgba(129, 182, 76, 0.15);
}

/* Main Content Area */
main {
    padding: 40px;
    background: var(--chess-bg-dark);
}

/* Card Styling - Chess.com inspired */
.card {
    background: var(--chess-bg-darker);
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 24px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.4);
    border: 1px solid rgba(129, 182, 76, 0.2);
}

.card h2 {
    color: var(--chess-green);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--chess-green-dark);
}

.card h3 {
    color: var(--chess-text);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 16px;
    margin-top: 24px;
}

.card h4 {
    color: var(--chess-text-secondary);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
    margin-top: 16px;
}

.card h5 {
    color: var(--chess-text);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 10px;
    margin-top: 12px;
}

/* Form Styles */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--chess-text);
    font-size: 0.95rem;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="email"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    background: var(--chess-bg-dark);
    border: 2px solid rgba(129, 182, 76, 0.3);
    border-radius: 6px;
    color: var(--chess-text);
    font-size: 1rem;
    font-family: 'Noto Sans', sans-serif;
    transition: all 0.3s;
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--chess-green);
    background: var(--chess-bg-darker);
}

.form-group small {
    display: block;
    margin-top: 6px;
    color: var(--chess-text-secondary);
    font-size: 0.85rem;
}

/* Button - Chess.com green style */
button[type="submit"] {
    width: 100%;
    padding: 16px;
    font-size: 1.1rem;
    font-weight: 700;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--chess-green);
    color: white;
    font-family: 'Noto Sans', sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

button[type="submit"]:hover:not(:disabled) {
    background: var(--chess-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(129, 182, 76, 0.3);
}

button[type="submit"]:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Loading Spinner */
.loader {
    border: 3px solid rgba(255,255,255,0.3);
    border-top: 3px solid var(--chess-green);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 0.8s linear infinite;
    display: inline-block;
    vertical-align: middle;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Results Section */
#results {
    animation: fadeIn 0.4s ease-in;
}

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

.games-analyzed {
    color: var(--chess-text-secondary);
    margin-bottom: 20px;
    font-size: 1rem;
}

.section {
    margin-bottom: 36px;
}

.subsection {
    margin-top: 24px;
    margin-bottom: 20px;
}

/* Style Badge - Chess.com inspired */
.style-badge {
    display: inline-block;
    padding: 12px 28px;
    background: var(--chess-green);
    color: white;
    border-radius: 6px;
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 2px 6px rgba(129, 182, 76, 0.4);
}

.style-badge.positional { background: var(--excellent); }
.style-badge.aggressive { background: var(--mistake); }
.style-badge.tactical { background: var(--brilliant); }
.style-badge.solid { background: var(--great); }
.style-badge.balanced { background: var(--good); }

.confidence {
    color: var(--chess-text-secondary);
    font-size: 1rem;
    margin-bottom: 20px;
}

/* Lists */
ul {
    list-style: none;
    padding-left: 0;
}

ul li {
    padding: 10px 0;
    padding-left: 28px;
    position: relative;
    line-height: 1.6;
    color: var(--chess-text);
}

ul li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--chess-green);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Progress Bars - Chess.com style */
.prob-bar {
    display: grid;
    grid-template-columns: 140px 1fr 80px;
    gap: 16px;
    align-items: center;
    margin-bottom: 14px;
    padding: 10px 0;
}

.prob-label {
    font-weight: 600;
    color: var(--chess-text);
    text-align: left;
    font-size: 0.95rem;
}

.prob-fill-container {
    background: var(--chess-bg-dark);
    border-radius: 4px;
    height: 28px;
    overflow: hidden;
    position: relative;
    border: 1px solid rgba(129, 182, 76, 0.2);
}

.prob-fill {
    background: linear-gradient(90deg, var(--chess-green) 0%, var(--chess-hover) 100%);
    height: 100%;
    border-radius: 3px;
    transition: width 0.6s ease;
    min-width: 2%;
}

.prob-value {
    font-weight: 700;
    color: var(--chess-green);
    text-align: right;
    font-size: 0.95rem;
}

/* Position Stats Cards */
.position-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 24px 0;
}

.stat-card {
    background: var(--chess-bg-dark);
    padding: 24px;
    border-radius: 6px;
    text-align: center;
    border: 2px solid rgba(129, 182, 76, 0.3);
}

.stat-label {
    color: var(--chess-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--chess-green);
    margin-bottom: 8px;
}

.stat-detail {
    color: var(--chess-text);
    font-size: 0.95rem;
}

/* Performance Cards - Move evaluation style */
#positionPerformance {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin: 24px 0;
}

.position-card {
    background: var(--chess-bg-dark);
    padding: 20px;
    border-radius: 6px;
    border-left: 4px solid var(--chess-text-secondary);
    transition: all 0.2s;
    cursor: default;
}

.position-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

/* Move evaluation colors for position cards */
.position-card.excellent { 
    border-left-color: var(--excellent);
    background: linear-gradient(135deg, var(--chess-bg-dark) 0%, rgba(150, 175, 139, 0.1) 100%);
}
.position-card.strong { 
    border-left-color: var(--good);
    background: linear-gradient(135deg, var(--chess-bg-dark) 0%, rgba(150, 188, 75, 0.1) 100%);
}
.position-card.average { 
    border-left-color: var(--inaccuracy);
    background: linear-gradient(135deg, var(--chess-bg-dark) 0%, rgba(240, 193, 92, 0.1) 100%);
}
.position-card.weak { 
    border-left-color: var(--mistake);
    background: linear-gradient(135deg, var(--chess-bg-dark) 0%, rgba(229, 143, 42, 0.1) 100%);
}

.position-type {
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--chess-text);
    margin-bottom: 10px;
}

.position-rating {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.position-card.excellent .position-rating { 
    background: var(--excellent);
    color: white;
}
.position-card.strong .position-rating { 
    background: var(--good);
    color: white;
}
.position-card.average .position-rating { 
    background: var(--inaccuracy);
    color: var(--chess-bg-darker);
}
.position-card.weak .position-rating { 
    background: var(--mistake);
    color: white;
}

.position-stats {
    color: var(--chess-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 24px 0;
}

.stat-item {
    text-align: center;
    padding: 24px;
    background: var(--chess-bg-dark);
    border-radius: 6px;
    border: 2px solid rgba(129, 182, 76, 0.3);
}

.stat-item .stat-value {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--chess-green);
    display: block;
    margin-bottom: 8px;
}

.stat-item .stat-label {
    color: var(--chess-text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

/* Error Display */
.error {
    background: var(--chess-bg-darker);
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 24px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.4);
    border-left: 4px solid var(--blunder);
}

.error h3 {
    color: var(--blunder);
    margin-bottom: 16px;
    font-weight: 700;
}

#errorMessage {
    color: var(--chess-text);
    line-height: 1.6;
}

/* FAQ Styling */
.faq-item {
    background: var(--chess-bg-dark);
    padding: 20px;
    margin-bottom: 16px;
    border-radius: 6px;
    border-left: 4px solid var(--chess-green);
}

.faq-question {
    font-weight: 700;
    color: var(--chess-green);
    font-size: 1.1rem;
    margin-bottom: 12px;
}

.faq-answer {
    color: var(--chess-text);
    line-height: 1.8;
}

/* Players Table */
.players-table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
}

.players-table thead {
    background: var(--chess-bg-dark);
}

.players-table th {
    padding: 16px;
    text-align: left;
    color: var(--chess-green);
    font-weight: 700;
    border-bottom: 2px solid var(--chess-green);
}

.players-table td {
    padding: 14px 16px;
    border-bottom: 1px solid rgba(129, 182, 76, 0.2);
    color: var(--chess-text);
}

.players-table tbody tr:hover {
    background: var(--chess-bg-dark);
}

/* Footer - Centered and transparent background */
footer {
    text-align: center;
    background: transparent; /* Changed from var(--chess-bg-darker) */
    color: var(--chess-text-secondary);
    padding: 40px 30px; /* Increased padding */
    margin-top: 60px;
    border-top: 1px solid rgba(129, 182, 76, 0.2); /* Subtle border */
}

footer p {
    margin: 8px 0;
    font-size: 0.9rem;
}

footer a {
    color: var(--chess-green);
    text-decoration: none;
    transition: color 0.2s;
}

footer a:hover {
    color: var(--chess-hover);
    text-decoration: underline;
}

/* Chess board pattern decoration (subtle) */
.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--chess-green) 0%, var(--chess-green-dark) 50%, var(--chess-green) 100%);
    border-radius: 8px 8px 0 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    header {
        padding: 30px 20px 15px 20px;
    }
    
    header h1 {
        font-size: 1.8rem;
    }
    
    
    .subtitle {
        font-size: 1rem;
    }
    
    nav ul {
        flex-direction: column;
        gap: 10px;
    }
    
    main {
        padding: 20px;
    }
    
    .card {
        padding: 20px;
    }
    
    .position-stats {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .prob-bar {
        grid-template-columns: 120px 1fr 70px;
        gap: 12px;
    }
    
    #positionPerformance {
        grid-template-columns: 1fr;
    }
    
    .style-badge {
        font-size: 1.3rem;
        padding: 10px 20px;
    }
    
    .players-table {
        font-size: 0.9rem;
    }
    
    .players-table th,
    .players-table td {
        padding: 10px;
    }
}

/* Hide scrollbar */
::-webkit-scrollbar {
    display: none;
}

/* For Firefox */
* {
    scrollbar-width: none;
}

/* For IE and Edge */
body {
    -ms-overflow-style: none;
}