.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(160deg, #f1f5f9 0%, #e2e8f0 45%, #f8fafc 100%);
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.login-header {
    background: linear-gradient(135deg, #1a1a1a 0%, #000000 100%);
    padding: 40px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-header::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255, 255, 255, 0.03) 10px, rgba(255, 255, 255, 0.03) 20px);
    animation: slide 20s linear infinite;
}

@keyframes slide {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.login-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 1;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-icon svg {
    width: 32px;
    height: 32px;
    color: #ffffff;
}

.login-title {
    color: #ffffff;
    font-size: 24px;
    font-weight: 600;
    margin: 0;
    letter-spacing: -0.5px;
}

.login-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    margin-top: 8px;
    font-weight: 400;
}

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

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.form-group {
    margin-bottom: 24px;
}

.password-input-wrapper {
    position: relative;
}

.password-input {
    padding-right: 48px;
    font-size: 16px;
    height: 48px;
    background-color: var(--gray-50);
    border: 2px solid var(--gray-200);
    transition: all 0.3s ease;
}

.password-input:focus {
    background-color: #ffffff;
    border-color: #2563eb;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--gray-500);
    transition: color 0.2s ease;
}

.password-toggle:hover {
    color: var(--gray-700);
}

.password-toggle svg {
    width: 20px;
    height: 20px;
}

.btn-login {
    width: 100%;
    height: 48px;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #ffffff;
    font-weight: 600;
    font-size: 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px -6px rgba(37, 99, 235, 0.45);
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

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

.btn-login::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-login:hover::before {
    left: 100%;
}

.alert-error {
    background-color: var(--gray-100);
    border: 1px solid var(--gray-300);
    color: var(--gray-900);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideIn 0.3s ease;
}

.alert-error svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

@keyframes slideIn {
    from {
        transform: translateY(-10px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--gray-500);
    font-size: 14px;
}

@media (max-width: 480px) {
    .login-card {
        max-width: 100%;
    }

    .login-header {
        padding: 30px 20px;
    }

    .login-body {
        padding: 30px 20px;
    }
}