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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f5f5f5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

.header {
    margin-top: 60px;
    margin-bottom: 60px;
    text-align: center;
}

.company-name {
    font-size: 36px;
    font-weight: 300;
    color: #4a90e2;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.company-name span {
    font-weight: 600;
}

.content {
    background: white;
    padding: 60px 80px;
    border-radius: 3px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 500px;
    width: 100%;
}

h1 {
    font-size: 28px;
    font-weight: 400;
    color: #333;
    margin-bottom: 16px;
}

.subtitle {
    font-size: 15px;
    color: #666;
    margin-bottom: 40px;
    line-height: 1.5;
}

.google-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #4285f4;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.3s;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.google-btn:hover {
    background: #357ae8;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.google-btn:active {
    background: #2d5fc7;
}

.google-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #4285f4;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 20px auto 0;
}

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

@media (max-width: 600px) {
    .content {
        padding: 40px 30px;
    }
    
    .company-name {
        font-size: 28px;
    }
}