.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: #0e1621;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(120, 119, 198, 0.1) 0%, transparent 50%);
    padding: 20px;
}

.login-card {
    background: #17212b;
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid #242f3d;
    animation: slideUp 0.4s ease-out;
}

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

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: white;
    font-weight: 600;
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
}

.login-title {
    font-size: 28px;
    font-weight: 600;
    color: #e4e6eb;
    margin-bottom: 8px;
}

.login-subtitle {
    font-size: 15px;
    color: #6c757d;
    line-height: 1.5;
}

.login-button {
    width: 100%;
    padding: 14px 24px;
    background: #5288c1;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 24px;
    box-shadow: 0 4px 12px rgba(82, 136, 193, 0.3);
}

.login-button:hover {
    background: #5a95d1;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(82, 136, 193, 0.4);
}

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

.login-button:disabled {
    background: #3d5a7a;
    cursor: not-allowed;
    transform: none;
    opacity: 0.7;
}

.login-button-icon {
    font-size: 20px;
}

.login-loading {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.login-button.loading .login-button-text {
    opacity: 0.7;
}

.login-button.loading .login-loading {
    display: block;
}

.login-footer {
    margin-top: 24px;
    text-align: center;
    font-size: 13px;
    color: #6c757d;
}

.error-message {
    display: none;
    padding: 12px 16px;
    background: rgba(244, 67, 54, 0.1);
    border: 1px solid rgba(244, 67, 54, 0.3);
    border-radius: 8px;
    color: #f44336;
    font-size: 14px;
    margin-top: 16px;
    animation: fadeIn 0.3s;
}

.error-message.show {
    display: block;
}

@media (max-width: 480px) {
    .login-card {
        padding: 32px 24px;
    }

    .login-title {
        font-size: 24px;
    }
}