/* ===========================
   Musclelog — shared styles
   =========================== */

:root {
    color-scheme: light dark;

    --bg: #ffffff;
    --bg-alt: #f5f5f7;
    --surface: #ebebed;
    --text: #111111;
    --text-sub: #666666;
    --accent: #3d7fc1;
    --border: #e0e0e3;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0a0a0a;
        --bg-alt: #111113;
        --surface: #1c1c1e;
        --text: #f2f2f7;
        --text-sub: #8d8d93;
        --accent: #7aabde;
        --border: #2c2c2e;
    }
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

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

a:hover {
    text-decoration: underline;
}

/* ─── Accessibility ─── */

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ─── Header ─── */

.site-header {
    padding: .875rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.site-header a {
    display: inline-flex;
    align-items: center;
}

.site-header a:hover {
    opacity: .8;
    text-decoration: none;
}

.nav-logo {
    height: 28px;
    width: auto;
    display: block;
}

/* ─── Main wrapper ─── */

main {
    max-width: 860px;
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
    flex: 1;
}

/* ─── Footer ─── */

footer {
    padding: 1.75rem 1.5rem;
    text-align: center;
    font-size: .875rem;
    color: var(--text-sub);
    border-top: 1px solid var(--border);
}

footer a {
    color: var(--text-sub);
}

footer a:hover {
    color: var(--accent);
}

/* ─── Hero ─── */

.hero {
    padding: 4.5rem 0 3.5rem;
    text-align: center;
}

.hero-logo {
    max-width: 260px;
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.hero .tagline {
    font-size: clamp(1.05rem, 2.5vw, 1.25rem);
    color: var(--text-sub);
    max-width: 480px;
    margin: 1.75rem auto 0;
}

/* ─── Features grid ─── */

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    padding: 3rem 0;
    border-top: 1px solid var(--border);
}

.feature {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1.375rem 1.5rem;
}

.feature h2 {
    font-size: .9375rem;
    font-weight: 700;
    margin-bottom: .5rem;
    letter-spacing: -.01em;
}

.feature p {
    font-size: .875rem;
    color: var(--text-sub);
    line-height: 1.55;
}

/* ─── Download / CTA ─── */

.download {
    padding: 3rem 0;
    text-align: center;
    border-top: 1px solid var(--border);
}

.coming-soon {
    display: inline-block;
    padding: .7rem 1.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: .9rem;
    font-weight: 600;
    color: var(--text-sub);
    letter-spacing: .005em;
}

/* ─── Privacy page ─── */

.page-header {
    padding: 3rem 0 2rem;
    border-bottom: 1px solid var(--border);
}

.page-header h1 {
    font-size: clamp(1.75rem, 4vw, 2.4rem);
    font-weight: 800;
    letter-spacing: -.03em;
}

.page-header .updated {
    margin-top: .4rem;
    font-size: .875rem;
    color: var(--text-sub);
}

.policy-body {
    padding: 2.5rem 0 4rem;
}

.policy-body section {
    margin-bottom: 2.5rem;
}

.policy-body h2 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: .85rem;
    padding-bottom: .5rem;
    border-bottom: 1px solid var(--border);
    letter-spacing: -.01em;
}

.policy-body h3 {
    font-size: .9375rem;
    font-weight: 700;
    margin: 1.25rem 0 .4rem;
}

.policy-body p {
    font-size: .9375rem;
    color: var(--text-sub);
    margin-bottom: .75rem;
}

.policy-body ul,
.policy-body ol {
    padding-left: 1.5rem;
    margin-bottom: .75rem;
}

.policy-body li {
    font-size: .9375rem;
    color: var(--text-sub);
    margin-bottom: .3rem;
}

.policy-body strong {
    color: var(--text);
    font-weight: 600;
}

.placeholder {
    background: #fef3c7;
    color: #92400e;
    padding: .15rem .4rem;
    border-radius: 4px;
    font-weight: 600;
    font-style: italic;
    font-size: .875rem;
}

@media (prefers-color-scheme: dark) {
    .placeholder {
        background: #451a03;
        color: #fde68a;
    }
}