*, *::before, *::after {
    box-sizing: border-box;
}

:root {
    --bg: #ffffff;
    --text: #1c1c1e;
    --text-secondary: #6e6e73;
    --accent: #0066cc;
    --accent-hover: #004499;
    --border: #d1d1d6;
    --meta-bg: #f5f5f7;
    --max-width: 700px;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.75;
    color: var(--text);
    background-color: var(--bg);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2.5rem 1.5rem 4rem;
}

/* ── Header ── */
header {
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.back-link {
    display: inline-block;
    color: var(--accent);
    text-decoration: none;
    font-size: 0.875rem;
    margin-bottom: 1.25rem;
    letter-spacing: 0.01em;
}

.back-link:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

h1 {
    font-size: 1.875rem;
    font-weight: 700;
    margin: 0 0 0.25rem;
    color: var(--text);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ── Index page ── */
.intro-text {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 0.9375rem;
}

.section-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.app-list {
    list-style: none;
    padding: 0;
    margin: 0 0 2.5rem;
    border-top: 1px solid var(--border);
}

.app-list li {
    border-bottom: 1px solid var(--border);
}

.app-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.875rem 0;
    color: var(--accent);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
}

.app-list a::after {
    content: "→";
    color: var(--border);
    font-size: 0.875rem;
}

.app-list a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

/* ── Policy meta box ── */
.meta {
    background: var(--meta-bg);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    margin-bottom: 2.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.meta p {
    margin: 0.2rem 0;
}

/* ── Policy sections ── */
section {
    margin-bottom: 2rem;
}

h2 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 0.5rem;
    letter-spacing: -0.01em;
}

p {
    margin: 0 0 0.875rem;
    color: var(--text);
    font-size: 0.9375rem;
}

ul {
    margin: 0 0 0.875rem;
    padding-left: 1.375rem;
}

li {
    margin-bottom: 0.35rem;
    color: var(--text);
    font-size: 0.9375rem;
}

/* ── Footer ── */
footer {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

footer a {
    color: var(--accent);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

footer p {
    margin: 0.25rem 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ── Responsive ── */
@media (max-width: 600px) {
    h1 {
        font-size: 1.5rem;
    }
    .container {
        padding: 1.5rem 1rem 3rem;
    }
}