/* Poker Calculator Styles */
:root {
    --primary-color: #2c5530;
    --secondary-color: #4a7c59;
    --accent-color: #d4af37;
    --background-color: #0f1419;
    --surface-color: #1a2332;
    --card-color: #2a3441;
    --text-primary: #ffffff;
    --text-secondary: #b0b8c4;
    --text-muted: #7a8491;
    --success-color: #22c55e;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --border-color: #374151;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, var(--background-color) 0%, #1a2332 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    padding: 2rem 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.header-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.header-content p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.header-content i {
    margin-right: 0.5rem;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem 0;
}

/* Mode Selector */
.mode-selector {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.mode-btn {
    background: var(--surface-color);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
    padding: 1rem 2rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mode-btn:hover {
    background: var(--card-color);
    border-color: var(--secondary-color);
}

.mode-btn.active {
    background: var(--primary-color);
    border-color: var(--secondary-color);
    color: var(--text-primary);
}

/* Game Selector */
.game-selector {
    text-align: center;
    margin-bottom: 2rem;
}

.game-selector label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-secondary);
}

#game-select {
    background: var(--surface-color);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 1rem;
    min-width: 200px;
}

#game-select:focus {
    outline: none;
    border-color: var(--secondary-color);
}

/* Mode Content */
.mode-content {
    display: none;
}

.mode-content.active {
    display: block;
}

/* Card Input Section */
.card-input-section {
    background: var(--surface-color);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.card-input-section h3 {
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.card-input {
    width: 100%;
    background: var(--card-color);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    padding: 1rem;
    border-radius: 8px;
    font-size: 1rem;
    font-family: 'Courier New', monospace;
    transition: all 0.3s ease;
}

.card-input:focus {
    outline: none;
    border-color: var(--secondary-color);
    background: var(--surface-color);
}

.card-input::placeholder {
    color: var(--text-muted);
}

.input-help {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* Hands Grid for Comparison */
.hands-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1rem;
    align-items: end;
    margin-bottom: 1.5rem;
}

.hand-input {
    display: flex;
    flex-direction: column;
}

.vs-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    font-size: 1.5rem;
    font-weight: bold;
    padding: 0 1rem;
}

/* Submit Button */
.submit-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-primary);
    border: none;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    box-shadow: var(--shadow);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.submit-btn:active {
    transform: translateY(0);
}

/* Results Section */
.results-section {
    background: var(--surface-color);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.results-section h3 {
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.result-card {
    background: var(--card-color);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.result-item:last-child {
    border-bottom: none;
}

.result-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.result-value {
    color: var(--text-primary);
    font-weight: 600;
    font-family: 'Courier New', monospace;
}

/* Comparison Grid */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.comparison-hand {
    background: var(--card-color);
    border-radius: 12px;
    padding: 1.5rem;
    border: 2px solid var(--border-color);
    position: relative;
}

.comparison-hand.winner {
    border-color: var(--success-color);
    background: linear-gradient(135deg, var(--card-color), rgba(34, 197, 94, 0.1));
}

.comparison-hand.winner::after {
    content: '👑';
    position: absolute;
    top: -10px;
    right: -10px;
    font-size: 1.5rem;
    background: var(--success-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hand-title {
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.winner-announcement {
    grid-column: 1 / -1;
    text-align: center;
    background: linear-gradient(135deg, var(--success-color), #16a34a);
    color: white;
    padding: 1rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

/* Loading */
.loading {
    text-align: center;
    padding: 2rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

/* Error Message */
.error-message {
    background: var(--error-color);
    color: white;
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Help Section */
.help-section {
    margin: 2rem 0;
}

.help-section details {
    background: var(--surface-color);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.help-section summary {
    padding: 1rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.help-section summary:hover {
    color: var(--text-primary);
}

.help-content {
    padding: 0 1rem 1rem;
    border-top: 1px solid var(--border-color);
}

.help-content h4 {
    color: var(--accent-color);
    margin: 1rem 0 0.5rem;
}

.notation-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.notation-item {
    background: var(--card-color);
    padding: 1rem;
    border-radius: 8px;
}

.help-content ul {
    list-style: none;
    padding-left: 0;
}

.help-content li {
    padding: 0.25rem 0;
}

.help-content code {
    background: var(--card-color);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: var(--accent-color);
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}

.footer a {
    color: var(--accent-color);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

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

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

.text-success {
    color: var(--success-color);
}

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

.text-warning {
    color: var(--warning-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .header-content h1 {
        font-size: 2rem;
    }
    
    .mode-selector {
        flex-direction: column;
        align-items: center;
    }
    
    .mode-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .hands-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .vs-divider {
        order: 2;
        margin: 1rem 0;
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .notation-grid {
        grid-template-columns: 1fr;
    }
}