body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
}

.main-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    padding: 50px 40px;
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
}

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.login-header .logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.login-header .logo i {
    font-size: 2.5rem;
    color: white;
}

.login-header h2 {
    color: #333;
    font-weight: 700;
    margin-bottom: 8px;
    font-size: 2rem;
}

.login-header p {
    color: #666;
    font-size: 1rem;
    margin: 0;
}

/* Fixed form floating styles */
.form-floating {
    position: relative;
    margin-bottom: 20px;
}

.form-floating>.form-control {
    height: calc(3.5rem + 2px);
    line-height: 1.25;
    padding: 1rem 0.75rem;
    border: 2px solid #e8ecef;
    border-radius: 12px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.form-floating>.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.25rem rgba(102, 126, 234, 0.15);
    background: white;
}

.form-floating>.form-control:focus~label,
.form-floating>.form-control:not(:placeholder-shown)~label {
    opacity: 0.65;
    transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
    color: #667eea;
}

.form-floating>label {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    padding: 1rem 0.75rem;
    pointer-events: none;
    border: 1px solid transparent;
    transform-origin: 0 0;
    transition: opacity 0.1s ease-in-out, transform 0.1s ease-in-out;
    color: #6c757d;
    font-weight: 500;
}

/* Password wrapper specific styles */
.password-wrapper {
    position: relative;
}

.password-wrapper>.form-control {
    padding-right: 45px;
    /* Make room for toggle button */
}

.password-toggle {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #6c757d;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 5;
    transition: color 0.3s ease;
}

.password-toggle:hover {
    color: #007bff;
    background: none;
    border: none;
}

.password-toggle:focus {
    outline: none;
    box-shadow: none;
    background: none;
    border: none;
}

.form-check {
    margin: 25px 0;
}

.form-check-input {
    width: 1.2em;
    height: 1.2em;
    border: 2px solid #dee2e6;
    margin-top: 0.125em;
}

.form-check-input:checked {
    background-color: #667eea;
    border-color: #667eea;
}

.form-check-label {
    color: #495057;
    font-weight: 500;
    margin-left: 8px;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    cursor: pointer;
}

.form-check-label:hover {
    color: #495057;
}

.btn-login {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    padding: 16px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    width: 100%;
    color: white;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
    color: white;
}

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

.divider {
    text-align: center;
    margin: 30px 0;
    position: relative;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: #dee2e6;
}

.divider span {
    background: white;
    padding: 0 20px;
    color: #6c757d;
    font-weight: 500;
}

.register-link {
    text-align: center;
    margin-top: 25px;
}

.register-link a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.register-link a:hover {
    color: #764ba2;
    text-decoration: underline;
}

.alert {
    border: none;
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 25px;
    font-weight: 500;
}

.alert-danger {
    background: linear-gradient(135deg, #fee 0%, #fdd 100%);
    color: #721c24;
    border-left: 4px solid #dc3545;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
    border-left: 4px solid #28a745;
}

.back-to-home {
    position: fixed;
    top: 30px;
    left: 30px;
    z-index: 1000;
}

.back-to-home a {
    color: white;
    text-decoration: none;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    transition: all 0.3s ease;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.back-to-home a:hover {
    background: rgba(255, 255, 255, 0.25);
    color: white;
    transform: translateY(-2px);
}

.demo-accounts {
    margin-top: 30px;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
    border: 1px solid #dee2e6;
}

.demo-accounts h6 {
    color: #495057;
    margin-bottom: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.demo-account {
    margin-bottom: 12px;
    padding: 12px 16px;
    background: white;
    border-radius: 8px;
    border: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.demo-account:last-child {
    margin-bottom: 0;
}

.demo-info {
    flex: 1;
}

.demo-info strong {
    color: #495057;
    display: block;
    margin-bottom: 2px;
}

.demo-info .credentials {
    color: #6c757d;
    font-size: 0.9rem;
}

.btn-demo {
    background: #667eea;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn-demo:hover {
    background: #5a6fd8;
    transform: translateY(-1px);
}

.form-control.is-invalid {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.15);
}

.loading {
    display: none;
}

.btn-login.loading .spinner-border {
    width: 1rem;
    height: 1rem;
}

.forgot-password-link {
    color: #6c757d;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
}

.forgot-password-link:hover {
    color: #007bff;
    text-decoration: none;
    transform: translateX(2px);
}

.forgot-password-link i {
    transition: all 0.3s ease;
}

.forgot-password-link:hover i {
    transform: scale(1.1);
}

/* Responsive adjustments */
@media (max-width: 576px) {
    .main-container {
        padding: 10px;
    }

    .login-container {
        padding: 40px 30px;
    }

    .back-to-home {
        top: 20px;
        left: 20px;
    }

    .back-to-home a {
        padding: 8px 12px;
        font-size: 14px;
    }

    .back-to-home a span {
        display: none;
    }

    .row.align-items-center .col-6 {
        margin-bottom: 0.5rem;
    }

    .row.align-items-center .col-6:last-child {
        text-align: left !important;
        margin-bottom: 0;
    }

    .forgot-password-link {
        font-size: 0.85rem;
    }

    .form-check-label {
        font-size: 0.85rem;
    }
}