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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: white;
    min-height: 100vh;
    padding: 108px 20px 20px 20px;
    line-height: 1.6;
    color: #2c3e50;
}

/* Focus styles for accessibility */
*:focus {
    outline: 3px solid #3498db;
    outline-offset: 2px;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #3498db;
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
}

.skip-link:focus {
    top: 6px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    overflow: hidden;
}

.header {
    background: #2c3e50;
    color: white;
    padding: 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    width: 100%;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
    min-height: 80px;
}

.header-brand {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.header h1 {
    font-size: 1.8rem;
    margin: 0 0 5px 0;
    font-weight: 700;
    line-height: 1.2;
}

.header p {
    font-size: 0.95rem;
    opacity: 0.9;
    margin: 0;
    line-height: 1.4;
}

.header-nav {
    display: flex;
    align-items: center;
}

.turn-selector {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.turn-selector h2 {
    font-size: 1rem;
    margin: 0;
    color: white;
    font-weight: 600;
}

.turn-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

.turn-selector select {
    background: white;
    color: #2c3e50;
    border: none;
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 0.9rem;
    min-width: 140px;
    cursor: pointer;
}

.turn-selector select:focus {
    outline: 2px solid #3498db;
    outline-offset: 2px;
}

.turn-display {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 0.9rem;
    font-weight: 600;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    min-width: 120px;
    text-align: center;
}

.current-player {
    color: #3498db;
    font-weight: 700;
}

/* Tab container styles */
.tab-container {
    grid-column: 1 / -1;
    margin-bottom: 20px;
}

.tab-buttons {
    display: flex;
    background: #f8f9fa;
    border-radius: 15px 15px 0 0;
    overflow: hidden;
}

.tab-btn {
    flex: 1;
    padding: 12px 8px;
    border: none;
    background: #ecf0f1;
    color: #2c3e50;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.85rem;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    white-space: nowrap;
}

.tab-btn.active {
    background: #3498db;
    color: white;
}

.tab-btn:hover {
    background: #2980b9;
    color: white;
}

.tab-btn:focus {
    outline: 3px solid #3498db;
    outline-offset: -3px;
}

.tab-content {
    display: none;
}

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

.tab-content {
    padding: 30px;
    background: white;
    border-radius: 0 0 15px 15px;
}

.tab-content h2 {
    margin-bottom: 25px;
    font-size: 1.8rem;
    color: #2c3e50;
    border-bottom: 3px solid #3498db;
    padding-bottom: 10px;
}

.section-group {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 25px;
    border: 1px solid #e9ecef;
}

/* Side by side layout for tablet and desktop */
@media (min-width: 768px) {
    .section-group {
        display: inline-block;
        width: calc(50% - 15px);
        vertical-align: top;
        margin-right: 15px;
    }
    
    .section-group:nth-child(even) {
        margin-right: 0;
    }
}

.section-group h3 {
    margin-bottom: 20px;
    font-size: 1.3rem;
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 8px;
}

/* Player Setup Styles */
.player-setup-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.player-setup-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: white;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.player-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-weight: 600;
    color: #2c3e50;
    min-width: 120px;
}

.player-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.player-label {
    font-size: 0.9rem;
}

.player-setup-item input[type="text"] {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 0.9rem;
}

.player-setup-item input[type="text"]:focus {
    outline: 2px solid #3498db;
    outline-offset: 2px;
    border-color: #3498db;
}

.players-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    padding: 30px;
}

/* Turn selector styles */
.turn-selector-section {
    grid-column: 1 / -1;
    background: #f8f9fa;
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 20px;
}

.turn-selector-section h2 {
    margin-bottom: 20px;
    font-size: 1.5rem;
    color: #2c3e50;
}

.turn-display {
    font-size: 1.2rem;
    font-weight: bold;
    color: #2c3e50;
    margin-top: 15px;
    padding: 10px;
    background: white;
    border-radius: 8px;
    border-left: 4px solid #3498db;
}

.current-player {
    color: #3498db;
    font-weight: 700;
}

.players-section {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 25px;
}

.players-section h2 {
    margin-bottom: 20px;
    font-size: 1.5rem;
    color: #2c3e50;
}

.retirement-status {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 20px;
}

.retirement-status h3 {
    margin: 0 0 10px 0;
    color: #856404;
    font-size: 1.1rem;
}

.player-card {
    background: white;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-left: 5px solid;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.player-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.player-blue { border-left-color: #3498db; }
.player-green { border-left-color: #2ecc71; }
.player-pink { border-left-color: #e91e63; }
.player-yellow { border-left-color: #f1c40f; }

.player-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.player-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin-right: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    flex-shrink: 0;
}

.avatar-blue { background: #3498db; }
.avatar-green { background: #2ecc71; }
.avatar-pink { background: #e91e63; }
.avatar-yellow { background: #f1c40f; }

.player-name {
    font-size: 1.2rem;
    font-weight: bold;
    margin: 0;
    color: #2c3e50;
}

.balance {
    font-size: 1.5rem;
    font-weight: bold;
    color: #2c3e50;
    margin: 10px 0;
}

.loan-balance {
    font-size: 1.1rem;
    font-weight: bold;
    color: #e74c3c;
    margin: 5px 0;
}

.loans-section {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 25px;
}

.loan-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 20px;
}

.loan-btn {
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.loan-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.btn-50k { background: #f39c12; color: white; }

.quick-amount-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 10px;
}

.quick-amount-btn {
    padding: 8px 12px;
    border: 2px solid #3498db;
    background: white;
    color: #3498db;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.quick-amount-btn:hover {
    background: #3498db;
    color: white;
    transform: translateY(-1px);
}

.custom-transaction {
    background: white;
    border-radius: 10px;
    padding: 20px;
    margin-top: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
    font-size: 0.95rem;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background: white;
}

.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group input:hover, .form-group select:hover {
    border-color: #bdc3c7;
}

.transaction-btn {
    background: #27ae60;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    margin-right: 10px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.transaction-btn:hover {
    background: #219a52;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(39, 174, 96, 0.3);
}

.transaction-btn:focus {
    outline: 3px solid #27ae60;
    outline-offset: 2px;
}

.remove-btn {
    background: #e74c3c;
}

.remove-btn:hover {
    background: #c0392b;
    box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
}

.remove-btn:focus {
    outline: 3px solid #e74c3c;
    outline-offset: 2px;
}

.transactions-section {
    grid-column: 1 / -1;
    background: #f8f9fa;
    border-radius: 15px;
    padding: 25px;
    margin-top: 20px;
}

.transaction-list {
    max-height: 300px;
    overflow-y: auto;
}

.transaction-item {
    background: white;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 8px;
    border-left: 4px solid #3498db;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.transaction-info {
    flex: 1;
}

.transaction-amount {
    font-weight: bold;
    font-size: 1.1rem;
}

.positive { color: #27ae60; }
.negative { color: #e74c3c; }

.transaction-details {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.delete-transaction {
    background: #e74c3c;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 3px;
    cursor: pointer;
}

.delete-transaction:hover {
    background: #c0392b;
}

.tab-btn:hover {
    background: #2980b9 !important;
    color: white !important;
}

.tab-content {
    display: none;
}

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

/* Responsive design */
@media (max-width: 768px) {
    body {
        padding: 140px 10px 10px 10px;
    }
    
    .container {
        border-radius: 15px;
    }
    
    .header {
        padding: 20px;
    }
    
    .header-content {
        flex-direction: column;
        gap: 20px;
        padding: 20px;
        min-height: auto;
    }
    
    .header-brand {
        text-align: center;
    }
    
    .header h1 {
        font-size: 1.5rem;
    }
    
    .header p {
        font-size: 0.9rem;
    }
    
    .turn-selector {
        flex-direction: column;
        gap: 15px;
        padding: 15px;
        width: 100%;
    }
    
    .turn-controls {
        flex-direction: column;
        gap: 10px;
        width: 100%;
    }
    
    .turn-selector select,
    .turn-display {
        width: 100%;
        min-width: auto;
    }
    
    .tab-content {
        padding: 20px;
    }
    
    .tab-content h2 {
        font-size: 1.5rem;
        margin-bottom: 20px;
    }
    
    .players-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .main-content {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 20px;
    }
    
    .turn-selector-section,
    .players-section,
    .loans-section {
        padding: 20px;
    }
    
    .tab-btn {
        padding: 10px 6px;
        font-size: 0.8rem;
        min-height: 45px;
    }
    
    .player-card {
        padding: 15px;
    }
    
    .player-name {
        font-size: 1.1rem;
    }
    
    .balance {
        font-size: 1.3rem;
    }
    
    .loan-balance {
        font-size: 1rem;
    }
    
    .form-group input, 
    .form-group select {
        padding: 10px;
    }
    
    .transaction-btn {
        padding: 10px 16px;
        font-size: 0.9rem;
        margin-bottom: 8px;
    }
    
    .loan-buttons {
        grid-template-columns: 1fr;
    }
    
    .quick-amount-buttons {
        grid-template-columns: 1fr 1fr;
    }
    
    .player-setup-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .player-setup-item {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .player-checkbox {
        min-width: auto;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.8rem;
    }
    
    .header p {
        font-size: 1rem;
    }
    
    .main-content {
        padding: 15px;
        gap: 15px;
    }
    
    .turn-selector-section,
    .players-section,
    .loans-section {
        padding: 15px;
    }
    
    .player-card {
        padding: 12px;
    }
    
    .quick-amount-buttons {
        grid-template-columns: 1fr;
    }
    
    .transaction-btn {
        width: 100%;
        margin-right: 0;
        margin-bottom: 10px;
    }
}

/* Footer Styles */
.footer {
    background: #2c3e50;
    color: white;
    padding: 30px 0;
    margin-top: 50px;
    border-top: 1px solid #34495e;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
}

.footer-disclaimer {
    text-align: center;
    font-size: 0.85rem;
    line-height: 1.6;
    opacity: 0.9;
}

.footer-disclaimer p {
    margin: 0 0 10px 0;
}

.footer-disclaimer p:last-child {
    margin-bottom: 0;
}

/* Responsive footer */
@media (max-width: 768px) {
    .footer {
        padding: 20px 0;
        margin-top: 30px;
    }
    
    .footer-content {
        padding: 0 20px;
    }
    
    .footer-disclaimer {
        font-size: 0.8rem;
    }
}