/* Modern Game Panel Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --dark-bg: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #334155;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--body-gradient, linear-gradient(135deg, #667eea 0%, #764ba2 100%));
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    transition: background 0.3s ease;
}

/* Light Theme Overrides */
body.theme-light {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

body.theme-light .card {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

body.theme-light .form-control {
    background: var(--dark-bg);
    color: var(--text-primary);
}

body.theme-light .form-control:focus {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.container {
    width: 100%;
    max-width: 450px;
}

.card {
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    padding: 30px;
    text-align: center;
}

.card-header h1 {
    color: white;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.card-header p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

.card-body {
    padding: 30px;
}

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

.form-label {
    display: block;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

.form-label .required {
    color: var(--danger-color);
    margin-left: 2px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--dark-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-control::placeholder {
    color: var(--text-secondary);
}

.input-icon {
    position: relative;
}

.input-icon i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.input-icon .form-control {
    padding-left: 45px;
}

.btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

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

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    display: none;
}

.alert.show {
    display: block;
    animation: slideDown 0.3s ease-out;
}

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

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success-color);
    color: var(--success-color);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--warning-color);
    color: var(--warning-color);
}

.form-text {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 6px;
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 24px 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.divider span {
    padding: 0 12px;
    color: var(--text-secondary);
    font-size: 14px;
}

.card-footer {
    background: var(--dark-bg);
    padding: 20px 30px;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.card-footer p {
    color: var(--text-secondary);
    font-size: 14px;
}

.card-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.card-footer a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.password-strength {
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    margin-top: 8px;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    width: 0;
    transition: all 0.3s ease;
}

.password-strength-bar.weak {
    width: 33%;
    background: var(--danger-color);
}

.password-strength-bar.medium {
    width: 66%;
    background: var(--warning-color);
}

.password-strength-bar.strong {
    width: 100%;
    background: var(--success-color);
}

.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* Responsive */
@media (max-width: 480px) {
    .container {
        padding: 10px;
    }
    
    .card-header {
        padding: 24px;
    }
    
    .card-body {
        padding: 20px;
    }
    
    .card-header h1 {
        font-size: 24px;
    }
}