* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: linear-gradient(135deg, #1a365d 0%, #2d5a87 50%, #3182ce 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.login-header {
    background: linear-gradient(135deg, #2d5a87 0%, #1a365d 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
}

.logo {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.logo svg {
    width: 32px;
    height: 32px;
    color: #90cdf4;
}

.login-header h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.login-header p {
    font-size: 0.9rem;
    opacity: 0.85;
}

.login-form {
    padding: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: #4a5568;
    margin-bottom: 8px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    transition: all 0.2s ease;
    background: #f7fafc;
}

.form-group input:focus {
    outline: none;
    border-color: #3182ce;
    background: white;
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.15);
}

.form-group input::placeholder {
    color: #a0aec0;
}

.error-message {
    background: #fed7d7;
    color: #c53030;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.875rem;
    margin-bottom: 20px;
    border-left: 4px solid #c53030;
}

.login-button {
    width: 100%;
    padding: 14px 24px;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, #3182ce 0%, #2b6cb0 100%);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.login-button:hover:not(:disabled) {
    background: linear-gradient(135deg, #2b6cb0 0%, #2c5282 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(49, 130, 206, 0.4);
}

.login-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.button-loader {
    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-footer {
    padding: 20px 30px;
    background: #f7fafc;
    text-align: center;
    border-top: 1px solid #e2e8f0;
}

.login-footer p {
    font-size: 0.8rem;
    color: #718096;
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .login-header {
        padding: 30px 20px;
    }

    .login-header h1 {
        font-size: 1.5rem;
    }

    .login-form {
        padding: 20px;
    }
}