/* Shared styles for the static SEO pages (tool pages and blog). Same tokens as home-v2.html. */
:root {
  --page: #f6f7f9;
  --panel: #ffffff;
  --wash: #eef0f4;
  --ink: #15171b;
  --ink-2: #4a4f59;
  --ink-3: #6b707a;
  --line: #e3e6ec;
  --field: #131315;
  --blue: #0a6cff;
  --blue-hover: #2a7fff;
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Source Serif 4", ui-serif, Georgia, serif;
  --gutter: clamp(1rem, 4vw, 1.5rem);
  --container: 68rem;
  --prose: 42rem;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
::selection { background: rgba(10, 108, 255, 0.18); }
a { color: inherit; }
h1, h2, h3, p, ul, ol { margin: 0; }
h1, h2 { text-wrap: balance; font-weight: 500; letter-spacing: -0.02em; }
p { text-wrap: pretty; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 6px; }
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.prose-w { max-width: var(--prose); }

/* header */
.top { border-bottom: 1px solid var(--line); background: var(--panel); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 1rem; }
.brand { display: inline-flex; align-items: center; gap: 0.5rem; font-weight: 500; text-decoration: none; }
.brand svg { width: 22px; height: 22px; fill: var(--ink); }
.nav-links { display: flex; align-items: center; gap: 1.25rem; font-size: 0.875rem; font-weight: 500; }
.nav-links a:not(.btn) { color: var(--ink-2); text-decoration: none; }
.nav-links a:not(.btn):hover { color: var(--ink); }
@media (max-width: 520px) { .nav-links .hide-sm { display: none; } }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  height: 2.75rem; padding: 0 1.125rem; border-radius: 10px;
  font: 500 0.9375rem/1 var(--sans); text-decoration: none; white-space: nowrap;
  transition: background-color .15s ease;
}
.btn-sm { height: 2.25rem; padding: 0 0.875rem; font-size: 0.875rem; }
.btn-blue { background: var(--blue); color: #fff; box-shadow: 0 6px 18px -8px rgba(10,108,255,.8); }
.btn-blue:hover { background: var(--blue-hover); }
.btn-ghost { background: var(--wash); color: var(--ink); }
.btn-ghost:hover { background: #e3e6ec; }

/* hero */
.hero { padding-block: clamp(3rem, 2rem + 4vw, 5.5rem) clamp(2.5rem, 2rem + 2vw, 4rem); }
.eyebrow { font-size: 0.8125rem; font-weight: 500; color: var(--blue); letter-spacing: 0.02em; text-transform: uppercase; }
.hero h1 { margin-top: 0.75rem; font-size: clamp(2.125rem, 1.5rem + 2.6vw, 3.5rem); line-height: 1.08; }
.lede { margin-top: 1.25rem; font-size: clamp(1.0625rem, 1rem + 0.3vw, 1.1875rem); color: var(--ink-2); max-width: 40rem; }
.cta-row { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }
.note { font-size: 0.8125rem; color: var(--ink-3); }

/* sections */
section.block { padding-block: clamp(2.5rem, 2rem + 3vw, 4.5rem); border-top: 1px solid var(--line); }
section.block h2 { font-size: clamp(1.5rem, 1.25rem + 1vw, 2.125rem); line-height: 1.15; }
section.block > .container > p.sub { margin-top: 0.75rem; color: var(--ink-2); max-width: 40rem; }
.grid { margin-top: 2rem; display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 1.25rem 1.25rem 1.375rem; }
.card h3 { font-size: 1.0625rem; font-weight: 600; }
.card p { margin-top: 0.375rem; color: var(--ink-2); font-size: 0.9375rem; }
.step-n { display: inline-block; font-size: 0.8125rem; font-weight: 600; color: var(--blue); margin-bottom: 0.5rem; }

/* faq */
.faq { margin-top: 1.5rem; max-width: 46rem; }
.faq details { border-bottom: 1px solid var(--line); padding-block: 1rem; }
.faq summary { cursor: pointer; font-weight: 500; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--ink-3); }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin-top: 0.5rem; color: var(--ink-2); }

/* links list */
.links { margin-top: 1.25rem; display: flex; flex-wrap: wrap; gap: 0.5rem; padding: 0; list-style: none; }
.links a { display: inline-block; padding: 0.375rem 0.75rem; border: 1px solid var(--line); border-radius: 999px; background: var(--panel); font-size: 0.875rem; text-decoration: none; color: var(--ink-2); }
.links a:hover { color: var(--ink); border-color: #cfd4dd; }

/* article */
.article { padding-block: clamp(2.5rem, 2rem + 3vw, 4.5rem); }
.article h1 { font-size: clamp(2rem, 1.5rem + 2vw, 3rem); line-height: 1.1; }
.meta { margin-top: 1rem; font-size: 0.875rem; color: var(--ink-3); }
.body { margin-top: 2rem; font-family: var(--serif); font-size: 1.125rem; line-height: 1.7; color: #23262c; }
.body > * + * { margin-top: 1.1em; }
.body h2 { font-family: var(--sans); font-size: 1.5rem; line-height: 1.2; margin-top: 2em; color: var(--ink); }
.body h3 { font-family: var(--sans); font-size: 1.125rem; margin-top: 1.6em; color: var(--ink); }
.body ul, .body ol { padding-left: 1.25em; }
.body li + li { margin-top: 0.4em; }
.body a { color: var(--blue); }
.body .answer { font-family: var(--sans); font-size: 1rem; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 1rem 1.25rem; color: var(--ink-2); }
.body .answer strong { color: var(--ink); }
.post-list { margin-top: 2rem; display: grid; gap: 1rem; }
.post-list a { text-decoration: none; }
.post-list .card:hover { border-color: #cfd4dd; }
.cta-box { margin-top: 3rem; padding: 1.5rem; border-radius: 16px; background: var(--field); color: #fff; font-family: var(--sans); }
.cta-box p { color: rgba(255,255,255,.75); margin-top: 0.375rem; font-size: 0.9375rem; }
.cta-box .btn { margin-top: 1rem; }

/* footer */
footer { border-top: 1px solid var(--line); padding-block: 2.5rem; font-size: 0.875rem; color: var(--ink-2); }
.foot { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); }
.foot h4 { margin: 0 0 0.5rem; font-size: 0.8125rem; font-weight: 600; color: var(--ink); }
.foot a { display: block; text-decoration: none; padding-block: 0.2rem; }
.foot a:hover { color: var(--ink); }
.fine { margin-top: 2rem; color: var(--ink-3); font-size: 0.8125rem; }