/* static/css/login.css */
.login-container {
    min-height: calc(100vh - 140px);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    position: relative;
    overflow: hidden;
}

.login-wrapper {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 500px;
}

.login-card {
    border: none;
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    backdrop-filter: blur(5px);
}

.login-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.login-card-body {
    padding: 2.5rem;
    text-align: center;
}

.login-title {
    color: #0066cc;
    font-size: 2.5rem;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0, 102, 204, 0.2);
    animation: fadeInDown 0.8s ease-out;
}

.login-alert {
    border-radius: 10px;
    margin-bottom: 1.5rem;
    animation: bounceIn 0.5s ease-out;
}

.login-alert-error {
    background-color: #ffebee;
    border: 1px solid #ffcdd2;
    color: #c62828;
}

.form-group {
    margin-bottom: 1.5rem;
}

.login-input-group {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.3s ease;
}

.login-input-group:focus-within {
    box-shadow: 0 4px 10px rgba(0, 102, 204, 0.2);
}

.login-icon {
    background: #f8f9fa;
    border: none;
    border-radius: 10px 0 0 10px;
    padding: 0.75rem 1rem;
    font-size: 1.2rem;
    color: #0066cc;
}

.login-input {
    border: none;
    border-radius: 0 10px 10px 0;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.login-input:focus {
    border-color: #0066cc;
    box-shadow: none;
    outline: none;
}

.login-input.is-invalid {
    border-color: #dc3545;
    background-color: #fff3f3;
}

.login-error {
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

.login-btn {
    background: linear-gradient(90deg, #0066cc, #0052a3);
    border: none;
    padding: 0.9rem;
    font-size: 1.2rem;
    font-weight: 600;
    color: #fff;
    border-radius: 10px;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, background 0.3s ease;
}

.login-btn:hover {
    transform: scale(1.05);
    background: linear-gradient(90deg, #0052a3, #003d7a);
}

.login-btn.disabled {
    background: #cccccc;
    transform: none;
    cursor: not-allowed;
}

.login-btn::after {
    content: '';
    position: absolute;
    width: 0;
    height: 100%;
    top: 0;
    left: 0;
    background: rgba(255, 255, 255, 0.2);
    transition: width 0.3s ease;
}

.login-btn:hover::after {
    width: 100%;
}

.login-btn-text {
    transition: opacity 0.3s ease;
}

.login-btn:hover .login-btn-text {
    opacity: 0.9;
}

.login-loader {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #0066cc;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    display: none;
    margin: 1rem auto;
}

.login-loader.active {
    display: block;
}

.login-container.loading {
    opacity: 0.85;
    pointer-events: none;
}

.login-container.loading .login-input {
    background-color: #f8f9fa;
}

.disabled-input {
    pointer-events: none;
    opacity: 0.6;
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes bounceIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 768px) {
    .login-card {
        margin: 1rem;
    }
    .login-title {
        font-size: 2rem;
    }
    .login-btn {
        font-size: 1.1rem;
    }
}