/* SizeMyLaptop site. Light and dark follow the OS setting; no other theme switch. */
:root {
  --paper: #F4F5F0;
  --surface: #FFFFFF;
  --ink: #17201D;
  --muted: #55625D;
  --rule: #D3DAD4;
  --accent: #0E7C6B;
  --accent-strong: #0A6457;
  --code-bg: #122019;
  --code-ink: #DDF3EA;
  --serif: "Charter", "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0E1513;
    --surface: #131D1A;
    --ink: #E6EEEA;
    --muted: #A3B3AC;
    --rule: #2A3834;
    --accent: #4FC9AE;
    --accent-strong: #8EE3CC;
    --code-bg: #08100E;
    --code-ink: #CDEFE4;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.65 var(--sans);
  overflow-wrap: break-word;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-strong); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.12; margin: 0 0 0.6em; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.35rem, 5.4vw, 4.3rem); line-height: 1.02; letter-spacing: -0.025em; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); margin-top: 0; }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; max-width: 68ch; }
code, kbd { font-family: var(--mono); font-size: 0.92em; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
section { padding: 72px 0; border-top: 1px solid var(--rule); }
.lede { font-size: clamp(1.1rem, 2vw, 1.3rem); color: var(--muted); max-width: 46ch; }

/* header */
.site-header { border-bottom: 1px solid var(--rule); }
.bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; padding-top: 18px; padding-bottom: 18px; }
.wordmark { font-family: var(--serif); font-size: 1.35rem; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.site-header nav { display: flex; flex-wrap: wrap; gap: 6px 22px; font-size: 0.95rem; }
.site-header nav a { color: var(--muted); text-decoration: none; }
.site-header nav a:hover { color: var(--ink); text-decoration: underline; }

/* hero */
.hero { padding: 64px 0 80px; }
.hero-grid { display: grid; gap: 48px; align-items: start; }
.hero h1 { margin-bottom: 22px; }
.hero .lede { margin-bottom: 28px; }
.hero-links { display: flex; flex-wrap: wrap; gap: 10px 26px; font-size: 0.98rem; }
.install {
  background: var(--code-bg);
  color: var(--code-ink);
  border-radius: 14px;
  padding: 22px;
  min-width: 0;
}
.tabs { display: inline-flex; gap: 4px; padding: 4px; background: rgba(255,255,255,0.06); border-radius: 999px; margin-bottom: 16px; }
.tabs button {
  font: 500 0.92rem/1 var(--sans);
  color: var(--code-ink);
  background: transparent;
  border: 0;
  border-radius: 999px;
  padding: 9px 16px;
  cursor: pointer;
}
.tabs button[aria-pressed="true"] { background: var(--code-ink); color: var(--code-bg); }
.cmd { display: flex; align-items: stretch; gap: 10px; min-width: 0; }
.cmd pre {
  margin: 0; flex: 1 1 auto; min-width: 0; overflow-wrap: anywhere;
  font: 500 0.95rem/1.5 var(--mono); padding: 14px 16px;
  background: rgba(255,255,255,0.05); border-radius: 10px; color: var(--code-ink);
  white-space: pre-wrap;
}
.copy {
  flex: 0 0 auto; font: 600 0.9rem/1 var(--sans); color: var(--code-bg);
  background: var(--code-ink); border: 0; border-radius: 10px; padding: 0 16px; cursor: pointer; min-height: 44px;
}
.install-note { margin: 14px 0 0; font-size: 0.92rem; color: #B9D6CB; max-width: none; }

/* steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; counter-reset: none; }
.steps li { display: grid; gap: 6px 28px; padding: 26px 0; border-top: 1px solid var(--rule); }
.steps li:last-child { border-bottom: 1px solid var(--rule); }
.steps h3 { margin: 0; }
.steps p { margin: 0; color: var(--muted); }
.steps code { color: var(--ink); }

/* report */
.report { display: grid; gap: 36px; align-items: start; }
.report figure { margin: 0; }
.report img { border: 1px solid var(--rule); border-radius: 6px; background: var(--surface); width: 100%; }
.report figcaption { font-size: 0.92rem; color: var(--muted); margin-top: 12px; max-width: 60ch; }

/* faq and privacy */
.faq details { border-top: 1px solid var(--rule); padding: 18px 0; }
.faq details:last-child { border-bottom: 1px solid var(--rule); }
.faq summary { cursor: pointer; font-family: var(--serif); font-size: 1.2rem; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--sans); color: var(--accent-strong); font-size: 1.4rem; line-height: 1; }
.faq details[open] summary::after { content: "-"; }
.faq details p { margin: 12px 0 0; color: var(--muted); }
.privacy-claim { font-family: var(--serif); font-size: clamp(1.5rem, 3vw, 2.1rem); line-height: 1.25; max-width: 24ch; margin: 0 0 20px; }

/* footer */
.site-footer { border-top: 1px solid var(--rule); padding: 36px 0 48px; font-size: 0.92rem; color: var(--muted); }
.foot p { margin: 0 0 6px; }

/* guides */
.article { padding: 56px 0 72px; }
.article .wrap { max-width: 720px; }
.article h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); margin-bottom: 18px; }
.article h2 { font-size: clamp(1.45rem, 2.6vw, 1.9rem); margin-top: 44px; }
.article p, .article li { font-size: 1.0625rem; }
.article ul, .article ol { padding-left: 22px; max-width: 68ch; }
.article li { margin-bottom: 0.5em; }
.meta { font-size: 0.92rem; color: var(--muted); margin-bottom: 36px; }
.cta-card { margin-top: 48px; padding: 26px; border: 1px solid var(--rule); border-radius: 14px; background: var(--surface); }
.cta-card p { margin-bottom: 14px; }
.guide-list { list-style: none; padding: 0; margin: 0; max-width: none; }
.guide-list li { border-top: 1px solid var(--rule); padding: 22px 0; }
.guide-list li:last-child { border-bottom: 1px solid var(--rule); }
.guide-list a { font-family: var(--serif); font-size: 1.4rem; color: var(--ink); text-decoration: none; }
.guide-list a:hover { text-decoration: underline; }
.guide-list p { margin: 6px 0 0; color: var(--muted); }

/* breakpoints */
@media (min-width: 860px) {
  .hero-grid { grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr); gap: 64px; }
  .report { grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); gap: 56px; }
  .steps li { grid-template-columns: 220px minmax(0, 1fr); }
  .steps li h3 { grid-row: span 2; }
  .steps li p { grid-column: 2; }
}
@media (max-width: 420px) {
  .wrap { padding: 0 16px; }
  .install { padding: 16px; }
  .cmd { flex-direction: column; }
  .copy { min-height: 44px; }
  section { padding: 56px 0; }
  .hero { padding: 40px 0 56px; }
}