/* Trip Data Kit — tokens. Own palette and type pair (not shared with other sites). */
:root {
  --paper: #f7f3ec;
  --paper-2: #efe9de;
  --card: #fffdf8;
  --ink: #1d1a16;
  --ink-2: #5b554c;
  --rule: #d9d1c3;
  --sky: #1f5fa8;
  --sky-deep: #15457c;
  --sky-soft: #dfe9f6;
  --sun: #e4862b;
  --sun-deep: #a65a12;
  --sun-soft: #fbe8d4;
  --sea: #1b8a7a;
  --sea-soft: #d8f0ec;
  --focus: #15457c;
  --font-display: "Outfit", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-body: "Source Sans 3", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --measure: 68ch;
  --wrap: 1060px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #15130f; --paper-2: #1e1b16; --card: #221f19; --ink: #efeae1; --ink-2: #b2a99b; --rule: #37322a;
    --sky: #7fb0f0; --sky-deep: #a9c9f5; --sky-soft: #1c2d44; --sun: #f0a054; --sun-deep: #f5bd84; --sun-soft: #3d2a16;
    --sea: #5ec7b6; --sea-soft: #173530; --focus: #a9c9f5;
  }
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font-body); font-size: 1.0625rem; line-height: 1.6; overflow-x: hidden; }
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--sky-deep); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--sky); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 8px; background: var(--card); padding: 8px 12px; z-index: 10; }

h1, h2, h3, .brand, nav, th, .button, .stat, legend, label, summary, .card h2, .card h3, .crumb, .pill { font-family: var(--font-display); }
h1 { font-size: clamp(1.9rem, 5vw, 3.1rem); line-height: 1.05; letter-spacing: -0.02em; font-weight: 700; margin: 0 0 16px; max-width: 24ch; }
h2 { font-size: clamp(1.35rem, 2.6vw, 1.75rem); line-height: 1.15; letter-spacing: -0.01em; font-weight: 600; margin: 44px 0 12px; }
h3 { font-size: 1.12rem; line-height: 1.3; font-weight: 600; margin: 24px 0 8px; }
p, ul, ol { margin: 0 0 1.1em; max-width: var(--measure); }
.lede { font-size: 1.18rem; line-height: 1.5; color: var(--ink-2); max-width: 60ch; }
.small { font-size: 0.9rem; color: var(--ink-2); }
.crumb { font-size: 0.92rem; color: var(--ink-2); margin: 0 0 10px; }
.crumb a { color: inherit; }
.num, .stat .value, td.num, .mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
code { font-family: var(--font-mono); font-size: 0.9em; background: var(--paper-2); padding: 1px 5px; border-radius: 4px; }

/* header / footer */
.site-header { border-bottom: 1px solid var(--rule); background: var(--card); }
.site-header .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; padding: 14px 16px; }
.brand { font-weight: 700; font-size: 1.25rem; letter-spacing: -0.01em; text-decoration: none; color: var(--ink); display: inline-flex; align-items: center; gap: 10px; }
.brand-mark { width: 22px; height: 16px; border-radius: 3px; background: linear-gradient(90deg, var(--sky) 0 55%, var(--sun) 55% 100%); position: relative; }
.brand-mark::after { content: ""; position: absolute; left: 55%; top: -3px; bottom: -3px; width: 2px; background: var(--card); }
nav { display: flex; flex-wrap: wrap; gap: 4px 20px; font-size: 0.98rem; }
nav a { text-decoration: none; color: var(--ink-2); }
nav a:hover, nav a[aria-current] { color: var(--ink); }
.site-footer { border-top: 1px solid var(--rule); margin-top: 64px; padding: 28px 0 40px; color: var(--ink-2); font-size: 0.92rem; }
.site-footer p { max-width: none; }

/* tool */
.tool { background: var(--card); border: 1px solid var(--rule); border-radius: 14px; padding: 18px; margin: 18px 0 26px; box-shadow: 0 1px 0 rgba(0,0,0,.03); }
.tool form { display: grid; gap: 14px; }
.tool .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tool label { display: block; font-weight: 600; font-size: 0.95rem; margin-bottom: 4px; }
.tool select, .tool input[type=number] { width: 100%; min-height: 44px; font: inherit; font-size: 1rem; padding: 8px 10px; border: 1px solid var(--rule); border-radius: 8px; background: var(--paper); color: var(--ink); }
.habits { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.habit { border: 1px solid var(--rule); border-radius: 10px; padding: 10px; background: var(--paper); }
.habit .name { font-family: var(--font-display); font-weight: 600; font-size: 0.95rem; margin: 0 0 6px; }
.seg { display: flex; border: 1px solid var(--rule); border-radius: 8px; overflow: hidden; }
.seg label { flex: 1; margin: 0; text-align: center; font-weight: 500; font-size: 0.9rem; cursor: pointer; }
.seg input { position: absolute; opacity: 0; }
.seg span { display: block; min-height: 40px; line-height: 40px; }
.seg input:checked + span { background: var(--sky); color: #fff; }
.seg input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: -3px; }
.check { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.check input { width: 20px; height: 20px; }
.result { margin-top: 6px; border-top: 2px dashed var(--rule); padding-top: 16px; }
.result .big { font-family: var(--font-mono); font-size: clamp(1.8rem, 6vw, 2.8rem); font-weight: 600; line-height: 1.05; color: var(--sky-deep); margin: 0 0 4px; }
.result .sub { color: var(--ink-2); margin: 0 0 12px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin: 14px 0 18px; }
.stat { background: var(--paper); border: 1px solid var(--rule); border-radius: 10px; padding: 10px 12px; }
.stat .label { font-size: 0.82rem; color: var(--ink-2); }
.stat .value { font-size: 1.25rem; font-weight: 600; }
.stat.sun { background: var(--sun-soft); border-color: transparent; }
.stat.sea { background: var(--sea-soft); border-color: transparent; }
.stat.sky { background: var(--sky-soft); border-color: transparent; }
.button { display: inline-block; background: var(--sun); color: #1d1a16; font-weight: 700; padding: 12px 18px; border-radius: 10px; text-decoration: none; border: 0; font-size: 1rem; cursor: pointer; min-height: 44px; }
.button:hover { background: var(--sun-deep); color: #fff; }
.button.quiet { background: var(--paper-2); color: var(--ink); }

/* tables */
.table-wrap { overflow-x: auto; margin: 0 0 1.2em; border: 1px solid var(--rule); border-radius: 10px; background: var(--card); }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-weight: 600; font-size: 0.86rem; color: var(--ink-2); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; }
.best td { background: var(--sea-soft); }

/* cards & lists */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; margin: 0 0 1.4em; padding: 0; list-style: none; }
.card { background: var(--card); border: 1px solid var(--rule); border-radius: 12px; padding: 14px 16px; }
.card h2, .card h3 { margin: 0 0 6px; font-size: 1.05rem; }
.card p { margin: 0; font-size: 0.95rem; color: var(--ink-2); }
.card a { text-decoration: none; }
.pill { display: inline-block; font-size: 0.8rem; padding: 2px 9px; border-radius: 999px; background: var(--sky-soft); color: var(--sky-deep); margin-right: 6px; }
.pill.sun { background: var(--sun-soft); color: var(--sun-deep); }
.pill.sea { background: var(--sea-soft); color: var(--sea); }
.callout { background: var(--sky-soft); border-left: 4px solid var(--sky); border-radius: 8px; padding: 12px 16px; margin: 18px 0; max-width: var(--measure); }
.callout.sun { background: var(--sun-soft); border-left-color: var(--sun); }
.source { font-size: 0.86rem; color: var(--ink-2); }
.source a { color: inherit; }

/* post / guide */
.post-header .hero { border-radius: 12px; margin: 18px 0; }
.post-body > :first-child { margin-top: 0; }
.cta { background: var(--card); border: 1px solid var(--rule); border-left: 4px solid var(--sun); border-radius: 10px; padding: 14px 18px; margin: 28px 0; max-width: var(--measure); }
.cta-title { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; margin: 0 0 4px; }
.cta p { margin: 0 0 10px; }
.faq details { border-top: 1px solid var(--rule); padding: 10px 0; }
.faq details:last-child { border-bottom: 1px solid var(--rule); }
.faq summary { cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary h3 { margin: 0; display: inline; font-size: 1.05rem; }
.faq summary::before { content: "+"; display: inline-block; width: 1.3em; color: var(--sky); font-weight: 700; }
.faq details[open] summary::before { content: "–"; }
.author-box, .related { background: var(--paper-2); border-radius: 10px; padding: 14px 18px; margin: 28px 0; max-width: var(--measure); }
.author-box h2, .related h2 { margin: 0 0 8px; font-size: 1.05rem; }
.related ul { margin: 0; padding-left: 18px; }
.post-card { background: var(--card); border: 1px solid var(--rule); border-radius: 12px; padding: 14px 16px; }
.post-card h2 { font-size: 1.1rem; margin: 0 0 6px; }
.post-card a { text-decoration: none; }
.post-card p { margin: 0; color: var(--ink-2); font-size: 0.95rem; }
.ad-slot { min-height: 280px; margin: 24px 0; background: transparent; }
@media (max-width: 600px) { .tool .row2 { grid-template-columns: 1fr; } h1 { max-width: none; } }