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

body {
    font-family: 'Inter', sans-serif;
    background: #667eea;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

body::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    top: -250px;
    right: -250px;
    animation: float 6s ease-in-out infinite;
}

body::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    bottom: -150px;
    left: -150px;
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(20px); }
}

.login-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 440px;
}

.card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    border: none;
    padding: 3rem 2.5rem;
    backdrop-filter: blur(10px);
    animation: slideUp 0.6s ease-out;
}

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

.card-body {
    padding: 0;
}

h1 {
    color: #667eea;
    font-weight: 700;
    font-size: 2rem;
    margin-bottom: 0.5rem;
    text-align: center;
}

.subtitle {
    text-align: center;
    color: #718096;
    font-size: 0.95rem;
    margin-bottom: 2rem;
    font-weight: 500;
}

.form-label {
    color: #2d3748;
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.form-control {
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 0.85rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f7fafc;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
    background: white;
    outline: none;
}

.form-control::placeholder {
    color: #a0aec0;
}

.btn-primary {
    background: #667eea;
    border: none;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    margin-top: 0.5rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.5);
    background: #5568d3;
}

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

.alert {
    border-radius: 12px;
    border: none;
    padding: 1rem;
    margin-bottom: 1.5rem;
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.alert-danger {
    background: #ef4444;
    color: white;
    font-weight: 500;
}

.alert-success {
    background: #10b981;
    color: white;
    font-weight: 500;
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.forgot-password {
    text-align: center;
    margin-top: 1rem;
}

.forgot-password a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.forgot-password a:hover {
    color: #5568d3;
    text-decoration: underline;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

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

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s ease;
}

.modal-header {
    margin-bottom: 1.5rem;
}

.modal-header h2 {
    color: #667eea;
    font-size: 1.5rem;
    margin: 0;
}

.close-btn {
    float: right;
    font-size: 1.5rem;
    font-weight: bold;
    color: #718096;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    line-height: 1;
}

.close-btn:hover {
    color: #2d3748;
}

.btn-secondary {
    background: #718096;
    border: none;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(113, 128, 150, 0.3);
    color: white;
    cursor: pointer;
}

.btn-secondary:hover {
    background: #5a6268;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(113, 128, 150, 0.4);
}

.mb-3 {
    margin-bottom: 1.5rem !important;
}

@media (max-width: 600px) {
    .card {
        padding: 2rem 1.5rem;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    .form-control, .btn-primary {
        font-size: 1.1rem;
        padding: 1rem;
    }
}