.auth-page {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
    padding: 24px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.auth-card {
    background: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    width: 100%;
    max-width: 420px;
    padding: 48px 40px;
}

.auth-logo {
    text-align: center;
    margin-bottom: 15px;
}

.auth-logo img {
    max-width: 220px;
    height: auto;
    object-fit: contain;
}

.auth-subtitle {
    text-align: center;
    color: #64748b;
    font-size: 0.95rem;
    margin-bottom: 35px;
    font-weight: 500;
}

.auth-input-group {
    position: relative;
    margin-bottom: 24px;
}

.auth-input-group .form-control {
    height: 52px;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
    padding: 10px 15px 10px 48px;
    font-size: 1rem;
    color: #1e293b;
    background: #f8fafc;
    transition: all 0.3s ease;
    box-shadow: none;
}

.auth-input-group .form-control:focus {
    background: #ffffff;
    border-color: #1c75bc;
    box-shadow: 0 0 0 4px rgba(28, 117, 188, 0.1);
}

.auth-input-icon {
    position: absolute;
    top: 26px;
    left: 18px;
    transform: translateY(-50%);
    color: #94a3b8;
    font-size: 1.1rem;
    z-index: 10;
    transition: color 0.3s ease;
}

.auth-input-group:focus-within .auth-input-icon {
    color: #1c75bc;
}

.auth-validation-message {
    display: block;
    margin-top: 0.25rem;
    padding-left: 5px;
    font-size: 0.85rem;
}

.btn-auth-primary {
    background: #1c75bc;
    color: #ffffff;
    border: none;
    height: 52px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1.05rem;
    width: 100%;
    box-shadow: 0 4px 12px rgba(28, 117, 188, 0.25);
    transition: all 0.3s ease;
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-auth-primary:hover {
    background: #155a92;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(28, 117, 188, 0.35);
    color: #ffffff;
}

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

.auth-alert {
    border-radius: 10px;
    font-size: 0.9rem;
    padding: 12px 16px;
    margin-bottom: 24px;
    border: none;
}

.auth-alert.alert-danger {
    background: #fef2f2;
    color: #b91c1c;
    border-left: 4px solid #ef4444;
}

.auth-alert.alert-success {
    background: #f0fdf4;
    color: #15803d;
    border-left: 4px solid #22c55e;
}

.auth-leading-icon {
    margin-right: 6px;
}

.auth-trailing-icon {
    margin-left: 8px;
}

.auth-back-link {
    display: block;
    margin-top: 24px;
    text-align: center;
    color: #64748b;
    font-size: 0.9rem;
    font-weight: 500;
}

.auth-back-link:hover {
    color: #1c75bc;
}

@media (max-width: 480px) {
    .auth-card {
        padding: 36px 24px;
    }
}