:root {
    --primary-color: #1a73e8;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --bg-primary: #ffffff;
    --bg-secondary: #f1f3f4;
    --border-color: #dadce0;
    --font-family: 'Roboto', -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font-family);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.header {
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    background-color: var(--bg-primary);
    z-index: 100;
}

.header-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 16px 24px;
}

.header-container h1 {
    font-size: 22px;
    font-weight: 400;
    color: var(--text-secondary);
}

.container {
    max-width: 800px;
    margin: 40px auto;
    padding: 0 24px;
    min-height: calc(100vh - 180px);
}

.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 32px;
}

.tab-btn {
    background: none;
    border: none;
    padding: 16px 24px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    position: relative;
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: color 0.2s;
}

.tab-btn:hover {
    color: var(--text-primary);
    background-color: var(--bg-secondary);
}

.tab-btn.active {
    color: var(--primary-color);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px 3px 0 0;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.tab-content h2 {
    font-size: 32px;
    font-weight: 400;
    margin-bottom: 8px;
}

.last-updated {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.content-block h3 {
    font-size: 20px;
    font-weight: 500;
    margin-top: 32px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.content-block p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.8;
}

.content-block strong {
    color: var(--text-primary);
    font-weight: 500;
}

.footer {
    border-top: 1px solid var(--border-color);
    padding: 24px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    background-color: var(--bg-secondary);
}

/* Form Styles */
.deletion-form {
    margin-top: 24px;
    background-color: var(--bg-secondary);
    padding: 24px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 16px;
}

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

.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
    font-size: 16px;
    transition: border-color 0.2s;
}

.form-group input[type="email"]:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.checkbox-group input {
    margin-top: 4px;
}

.checkbox-group label {
    font-weight: 400;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.submit-btn {
    background-color: #d93025;
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    font-family: inherit;
    transition: background-color 0.2s;
}

.submit-btn:hover {
    background-color: #b32a21;
}

.success-message {
    margin-top: 24px;
    padding: 16px;
    background-color: #e6f4ea;
    border: 1px solid #ceead6;
    border-radius: 8px;
    color: #137333;
}

.success-message h4 {
    margin-bottom: 8px;
}

@media (max-width: 600px) {
    .tabs {
        flex-direction: column;
    }
    .tab-btn {
        text-align: left;
    }
    .tab-btn.active::after {
        left: 0;
        top: 0;
        bottom: 0;
        width: 3px;
        height: 100%;
        border-radius: 0 3px 3px 0;
    }
    .container {
        margin: 24px auto;
    }
}