/* Login Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-content {
    background: linear-gradient(135deg, rgba(17, 17, 17, 0.95) 0%, rgba(34, 34, 34, 0.95) 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 0;
    width: 90%;
    max-width: 400px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(20px);
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s ease;
}

.modal.show .modal-content {
    transform: scale(1) translateY(0);
}

.modal-header {
    padding: 24px 24px 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 24px;
}

.modal-header h2 {
    margin: 0;
    color: #ffffff;
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: #ffffff;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background-color 0.2s ease;
}

.modal-close:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.modal-body {
    padding: 0 24px 24px 24px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #ffffff;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    font-size: 1rem;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #007bff;
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.input-hint {
    margin-top: 6px;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
}

.error-message {
    display: none;
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.3);
    color: #ff6b6b;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.error-message.show {
    display: block;
}

.form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-primary {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    color: #ffffff;
    border: 1px solid transparent;
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #0056b3 0%, #004085 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-spinner {
    display: none;
}

.btn.loading .btn-text {
    opacity: 0;
}

.btn.loading .btn-spinner {
    display: inline-block;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

/* Responsive Design */
@media (max-width: 480px) {
    .modal-content {
        width: 95%;
        margin: 20px;
    }
    
    .modal-header {
        padding: 20px 20px 0 20px;
    }
    
    .modal-body {
        padding: 0 20px 20px 20px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

/* Animation for form validation */
.form-group input.error {
    border-color: #dc3545;
    background: rgba(220, 53, 69, 0.05);
    animation: shake 0.3s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Focus trap for accessibility */
.modal[aria-hidden="false"] {
    display: flex;
}

.modal[aria-hidden="true"] {
    display: none;
}