/* ==========================================================================
   FIXMART — Home stylesheet (v3, editorial / architectural)
   Reference register: Siemens · Schneider · ABB · Cisco · Vertiv ·
   Honeywell · Johnson Controls · IBM · Palantir.
   Not a landing page. Closer to an engineering annual report.
   Typeface: IBM Plex (Sans + Mono) — an enterprise-engineering family.
   Rules: type carries the design. Whitespace is structure. No cards,
   no shadows, no gradients, no glow, no animation. Hairlines, grids, air.
   Orange is rare and expensive — it marks INTEGRATION and the primary action.
   ========================================================================== */

:root {
  --ink: #0E0E0F;          /* near-black plate */
  --ink-soft: #17181A;
  --ink-line: #2A2C2F;     /* hairline on dark */
  --ink-line-2: #3A3D41;
  --ink-text: #C7CACE;     /* body on dark */
  --ink-text-2: #8A8F96;   /* muted on dark */

  --paper: #FCFCFB;        /* page */
  --paper-2: #F4F3F0;      /* alt paper */
  --text: #101113;         /* body on paper */
  --text-2: #3E434A;
  --text-muted: #767C84;
  --rule: #E4E3DE;         /* hairline on paper */
  --rule-2: #D3D2CC;

  --accent: #E8600A;       /* Fixmart orange, slightly deepened = expensive */
  --accent-2: #C2500A;

  --font: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --maxw: 1240px;
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --col-gap: clamp(1.25rem, 2.5vw, 2rem);
  --sec: clamp(5.5rem, 12vw, 11rem);   /* section vertical rhythm — generous */
}

/* ---------- reset ---------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--paper);
  font-size: 18px;
  line-height: 1.62;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
p { margin: 0; }
svg { display: block; max-width: 100%; }
::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

h1, h2, h3, h4 {
  margin: 0; font-weight: 600; line-height: 1.06;
  letter-spacing: -0.022em; color: var(--text);
  font-feature-settings: "ss02" 1;
}

/* ---------- primitives ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.grid12 { display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--col-gap); }
.section { padding: var(--sec) 0; }
.plate { background: var(--ink); color: var(--ink-text); }
.plate h1, .plate h2, .plate h3, .plate h4 { color: #fff; }
.alt { background: var(--paper-2); }

/* engineering meta label */
.meta { font-family: var(--mono); font-size: 0.7rem; font-weight: 500; letter-spacing: 0.2em; text-transform: uppercase; color: var(--text-muted); }
.plate .meta { color: var(--ink-text-2); }
.meta-accent { color: var(--accent); }

/* section index header: NN / label ————————— */
.sec-head { display: flex; align-items: baseline; gap: 1.25rem; margin-bottom: clamp(2.5rem, 5vw, 4.5rem); }
.sec-head .no { font-family: var(--mono); font-size: 0.7rem; font-weight: 500; letter-spacing: 0.14em; color: var(--accent); flex: 0 0 auto; padding-top: 0.15rem; }
.sec-head .lab { font-family: var(--mono); font-size: 0.7rem; font-weight: 500; letter-spacing: 0.2em; text-transform: uppercase; color: var(--text-muted); flex: 0 0 auto; padding-top: 0.15rem; }
.plate .sec-head .lab { color: var(--ink-text-2); }
.sec-head .line { flex: 1; height: 1px; background: var(--rule); align-self: center; }
.plate .sec-head .line { background: var(--ink-line); }

/* display type scale */
.display { font-weight: 600; letter-spacing: -0.035em; line-height: 1.0; font-size: clamp(2.6rem, 7.2vw, 5.6rem); font-feature-settings: "ss02" 1; }
.h-xl { font-size: clamp(2.1rem, 4.6vw, 3.5rem); letter-spacing: -0.03em; line-height: 1.04; font-weight: 600; }
.h-lg { font-size: clamp(1.75rem, 3.4vw, 2.6rem); letter-spacing: -0.025em; line-height: 1.08; font-weight: 600; }
.h-md { font-size: clamp(1.3rem, 2vw, 1.6rem); letter-spacing: -0.02em; line-height: 1.15; font-weight: 600; }

/* editorial body */
.lede { font-size: clamp(1.2rem, 1.8vw, 1.55rem); line-height: 1.42; font-weight: 400; letter-spacing: -0.01em; color: var(--text-2); }
.plate .lede { color: var(--ink-text); }
.body { font-size: 1.06rem; line-height: 1.65; color: var(--text-2); }
.plate .body { color: var(--ink-text); }
.muted { color: var(--text-muted); }
.plate .muted { color: var(--ink-text-2); }
.measure { max-width: 34em; }
.measure-sm { max-width: 26em; }
.accent { color: var(--accent); }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 0.7rem; font-family: var(--font); font-weight: 500; font-size: 0.98rem; letter-spacing: 0.005em; padding: 1rem 1.7rem; border: 1px solid transparent; cursor: pointer; transition: background-color .16s, border-color .16s, color .16s; }
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-2); }
.btn-line { background: transparent; border-color: var(--rule-2); color: var(--text); }
.btn-line:hover { border-color: var(--text); }
.plate .btn-line { border-color: var(--ink-line-2); color: #fff; }
.plate .btn-line:hover { border-color: var(--ink-text); }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.9rem; align-items: center; }
.textlink { font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.12em; text-transform: uppercase; display: inline-flex; align-items: center; gap: 0.55rem; border-bottom: 1px solid var(--accent); padding-bottom: 3px; color: var(--text); }
.plate .textlink { color: #fff; }
.textlink:hover { color: var(--accent); }

/* ---------- header ---------- */
.site-header { background: var(--ink); position: sticky; top: 0; z-index: 60; border-bottom: 1px solid var(--ink-line); }
.nav { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); height: 72px; display: flex; align-items: center; justify-content: space-between; }
.nav-logo img { height: 34px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-link { color: var(--ink-text); font-size: 0.86rem; font-weight: 400; letter-spacing: 0.01em; transition: color .16s; }
.nav-link:hover { color: #fff; }
.lang { display: flex; align-items: center; gap: 0.35rem; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; }
.lang .on { color: var(--accent); }
.lang .sep { color: #45484c; }
.lang a { color: var(--ink-text-2); }
.lang a:hover { color: #fff; }
.nav-ghost { color: var(--ink-text); font-size: 0.78rem; font-weight: 400; letter-spacing: 0.02em; padding: 0.5rem 0; border-bottom: 1px solid transparent; transition: border-color .16s, color .16s; }
.nav-ghost:hover { color: #fff; border-color: var(--ink-line-2); }
.nav-solid { background: var(--accent); color: #fff; font-size: 0.82rem; font-weight: 500; padding: 0.6rem 1.1rem; transition: background-color .16s; }
.nav-solid:hover { background: var(--accent-2); }
.nav-toggle { display: none; background: none; border: 0; color: var(--ink-text); cursor: pointer; padding: 6px; }
.mobile-menu { display: none; background: var(--ink); border-top: 1px solid var(--ink-line); }
.mobile-menu.open { display: block; }
.mobile-menu a { display: block; padding: 0.95rem var(--gutter); color: var(--ink-text); border-bottom: 1px solid var(--ink-soft); }
.mobile-menu .mm-cta { display: flex; gap: 0.7rem; padding: 1rem var(--gutter); }

/* ---------- hero (annual-report cover) ---------- */
.hero { background: var(--ink); color: var(--ink-text); }
.hero-top { border-bottom: 1px solid var(--ink-line); }
.hero-top .wrap { display: flex; flex-wrap: wrap; gap: 0.6rem 2.5rem; padding-top: 0.9rem; padding-bottom: 0.9rem; }
.hero-top .meta span { color: var(--ink-text); }
.hero-body { padding: clamp(4rem, 10vw, 8.5rem) 0 clamp(3rem, 6vw, 5rem); }
.hero h1 { color: #fff; max-width: 15ch; }
.hero h1 .accent { color: var(--accent); }
.hero-sub { margin-top: clamp(2rem, 4vw, 3rem); max-width: 44ch; }
.hero-meta-row { margin-top: clamp(2.5rem, 5vw, 4rem); display: flex; flex-wrap: wrap; gap: 1.5rem 3rem; align-items: center; }
.hero-tenets { display: flex; flex-wrap: wrap; gap: 0.4rem 2rem; }
.hero-tenets span { position: relative; padding-left: 1.1rem; font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; color: var(--ink-text); }
.hero-tenets span::before { content: ""; position: absolute; left: 0; top: 0.5em; width: 5px; height: 5px; background: var(--accent); }
/* hero diagram band */
.hero-band { border-top: 1px solid var(--ink-line); }
.hero-band .wrap { padding-top: clamp(2rem, 4vw, 3rem); padding-bottom: clamp(2.5rem, 5vw, 4rem); }

/* ---------- diagrams ---------- */
.dgm { width: 100%; height: auto; }
.dgm-line { stroke: currentColor; fill: none; stroke-width: 1; }
.figcap { margin-top: 1.1rem; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-muted); }
.plate .figcap { color: var(--ink-text-2); }

/* ---------- generic editorial two-column ---------- */
.split { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: clamp(2.5rem, 6vw, 6rem); align-items: center; }
.split-40-60 { grid-template-columns: minmax(0,4fr) minmax(0,6fr); }
.split-60-40 { grid-template-columns: minmax(0,6fr) minmax(0,4fr); }
.stack > * + * { margin-top: 1.5rem; }
.stack-sm > * + * { margin-top: 0.9rem; }

/* ---------- manifesto ---------- */
.statement { font-size: clamp(1.7rem, 3.6vw, 3rem); line-height: 1.18; letter-spacing: -0.025em; font-weight: 400; max-width: 20ch; }
.statement b { font-weight: 600; }
.statement .accent { color: var(--accent); }

/* ---------- fragmentation (problem) ---------- */
.list-rule { border-top: 1px solid var(--ink-line); }
.plate .list-rule { border-color: var(--ink-line); }
.list-rule li { display: grid; grid-template-columns: 2.6rem 1fr; gap: 1rem; padding: 1.15rem 0; border-bottom: 1px solid var(--ink-line); align-items: baseline; }
.list-rule li .n { font-family: var(--mono); font-size: 0.72rem; color: var(--ink-text-2); letter-spacing: 0.04em; }
.list-rule li .t { color: var(--ink-text); font-size: 1.05rem; line-height: 1.4; }

/* ---------- capabilities index (spec-sheet) ---------- */
.spec { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: clamp(2rem,5vw,5rem); }
.spec-col > .spec-h { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; padding-bottom: 1rem; border-bottom: 1px solid var(--rule-2); }
.plate .spec-col > .spec-h { border-color: var(--ink-line-2); }
.spec-list li { display: flex; align-items: baseline; gap: 1rem; padding: 0.85rem 0; border-bottom: 1px solid var(--rule); font-size: 1.02rem; }
.plate .spec-list li { border-color: var(--ink-line); color: var(--ink-text); }
.spec-list li .k { font-family: var(--mono); font-size: 0.7rem; color: var(--accent); letter-spacing: 0.06em; flex: 0 0 2.2rem; }

/* ---------- timeline (design/implement/operate) ---------- */
.timeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.5rem,4vw,3.5rem); margin-top: 1rem; }
.tl-step { padding-top: 1.6rem; border-top: 2px solid var(--text); }
.plate .tl-step { border-top-color: var(--ink-text); }
.tl-step.is-accent { border-top-color: var(--accent); }
.tl-step .tl-k { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); }
.plate .tl-step .tl-k { color: var(--ink-text-2); }
.tl-step h3 { margin: 0.7rem 0 0.6rem; }
.tl-step p { color: var(--text-2); font-size: 1rem; line-height: 1.55; }
.plate .tl-step p { color: var(--ink-text); }

/* ---------- solutions (numbered editorial rows) ---------- */
.rows { border-top: 1px solid var(--rule-2); }
.plate .rows { border-color: var(--ink-line-2); }
.row { display: grid; grid-template-columns: 3.5rem minmax(0,7fr) minmax(0,9fr); gap: clamp(1rem,3vw,3rem); padding: clamp(1.6rem,3vw,2.4rem) 0; border-bottom: 1px solid var(--rule); align-items: start; }
.plate .row { border-color: var(--ink-line); }
.row .row-no { font-family: var(--mono); font-size: 0.8rem; color: var(--accent); letter-spacing: 0.04em; padding-top: 0.35rem; }
.row h3 { font-size: clamp(1.2rem, 1.8vw, 1.55rem); }
.row p { color: var(--text-2); font-size: 1.02rem; line-height: 1.55; }
.plate .row p { color: var(--ink-text); }
.row:hover .row-no { color: var(--accent); }

/* ---------- levels (progression) ---------- */
.levels { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 1rem; }
.level { padding: 2rem clamp(1.25rem,2.5vw,2rem) 2rem 0; border-top: 1px solid var(--ink-line); }
.level .lv-k { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-text-2); }
.level h3 { font-size: clamp(1.6rem, 2.6vw, 2.2rem); margin: 0.6rem 0 0.3rem; letter-spacing: -0.03em; }
.level .lv-for { color: var(--accent); font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.04em; margin-bottom: 1.1rem; }
.level p { color: var(--ink-text); font-size: 1rem; line-height: 1.55; }
.level.is-mid { border-top-color: var(--accent); }

/* ---------- sectors (typographic index) ---------- */
.index-grid { columns: 3; column-gap: clamp(2rem,5vw,5rem); }
.index-grid li { break-inside: avoid; display: flex; align-items: baseline; gap: 0.8rem; padding: 0.7rem 0; border-bottom: 1px solid var(--rule); font-size: 1.02rem; }
.index-grid li .ix { font-family: var(--mono); font-size: 0.7rem; color: var(--accent); }
.signals-line { margin-top: clamp(2.5rem,5vw,4rem); }
.signals-line h3 { margin-bottom: 1.4rem; }
.signals-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.9rem 3rem; }
.signals-grid li { display: flex; gap: 0.8rem; align-items: baseline; color: var(--text-2); font-size: 1.02rem; padding: 0.35rem 0; }
.signals-grid li::before { content: "—"; color: var(--accent); font-family: var(--mono); }

/* ---------- differentiators (editorial statements) ---------- */
.diffs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.diffi { padding: clamp(1.8rem,3vw,2.6rem) clamp(1.5rem,2.5vw,2.4rem) clamp(1.8rem,3vw,2.6rem) 0; border-top: 1px solid var(--ink-line); }
.diffi .dn { font-family: var(--mono); font-size: 0.72rem; color: var(--accent); letter-spacing: 0.06em; }
.diffi h3 { font-size: 1.28rem; margin: 0.9rem 0 0.6rem; letter-spacing: -0.02em; }
.diffi p { color: var(--ink-text); font-size: 0.99rem; line-height: 1.55; }

/* ---------- results (principles) ---------- */
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.5rem,4vw,3.5rem); }
.principle { border-top: 2px solid var(--text); padding-top: 1.5rem; }
.principle .pk { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }
.principle h3 { font-size: 1.4rem; margin: 0.8rem 0 0.6rem; letter-spacing: -0.02em; }
.principle p { color: var(--text-2); font-size: 1rem; line-height: 1.55; }

/* ---------- faq ---------- */
.faq { max-width: 900px; }
.faq details { border-top: 1px solid var(--rule-2); padding: 1.5rem 0; }
.faq details:last-child { border-bottom: 1px solid var(--rule-2); }
.faq summary { cursor: pointer; list-style: none; display: grid; grid-template-columns: 2.5rem 1fr auto; gap: 1rem; align-items: baseline; font-size: clamp(1.15rem,1.7vw,1.4rem); font-weight: 600; letter-spacing: -0.02em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .qn { font-family: var(--mono); font-size: 0.74rem; color: var(--accent); font-weight: 500; padding-top: 0.35rem; }
.faq summary .plus { color: var(--accent); transition: transform .2s; align-self: center; }
.faq details[open] summary .plus { transform: rotate(45deg); }
.faq details .a { margin-top: 1rem; padding-left: 3.5rem; color: var(--text-2); font-size: 1.05rem; line-height: 1.62; max-width: 66ch; }

/* ---------- cta ---------- */
.cta .cta-grid { display: grid; grid-template-columns: minmax(0,1.4fr) minmax(0,1fr); gap: clamp(2rem,5vw,5rem); align-items: end; }
.cta h2 { max-width: 16ch; }
.cta .cta-side { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.06em; line-height: 2; color: var(--ink-text-2); }
.cta .cta-side a:hover { color: #fff; }
.cta .cta-side .accent { color: var(--accent); }

/* ---------- footer ---------- */
.site-footer { background: var(--ink); color: var(--ink-text-2); border-top: 1px solid var(--ink-line); }
.footer-inner { max-width: var(--maxw); margin: 0 auto; padding: clamp(3.5rem,7vw,6rem) var(--gutter) 2rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 2.5rem; }
.footer-grid img { height: 32px; width: auto; margin-bottom: 1.3rem; }
.footer-grid .f-about { font-size: 0.92rem; line-height: 1.6; color: var(--ink-text-2); max-width: 32ch; }
.footer-col h4 { font-family: var(--mono); color: var(--ink-text); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; margin-bottom: 1.2rem; font-weight: 500; }
.footer-col li { margin-bottom: 0.65rem; font-size: 0.92rem; }
.footer-col a:hover { color: #fff; }
.footer-contact li { display: flex; gap: 0.6rem; align-items: baseline; }
.footer-bottom { border-top: 1px solid var(--ink-line); margin-top: clamp(2.5rem,5vw,4rem); padding-top: 1.6rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.8rem; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em; color: #565a60; }

/* ---------- responsive ---------- */
@media (max-width: 1000px) {
  .split, .split-40-60, .split-60-40, .cta .cta-grid { grid-template-columns: 1fr; }
  .spec { grid-template-columns: 1fr; gap: 3rem; }
  .index-grid { columns: 2; }
  .diffs { grid-template-columns: 1fr 1fr; }
  .levels { grid-template-columns: 1fr; }
  .level { padding-right: 0; }
  .level.is-mid { border-top-color: var(--accent); }
}
@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .timeline, .principles, .diffs, .signals-grid, .levels { grid-template-columns: 1fr; }
  .index-grid { columns: 1; }
  .row { grid-template-columns: 2.5rem 1fr; }
  .row p { grid-column: 2; }
  .faq summary { grid-template-columns: 2rem 1fr auto; }
  .faq details .a { padding-left: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .hero-band { display: none; }
}
@media (max-width: 460px) {
  body { font-size: 17px; }
  .btn { width: 100%; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* ---------- section internal hero (concept-first) ---------- */
.sec-hero { margin-bottom: clamp(2.75rem, 6vw, 5rem); }
.sec-hero .dgm { width: 100%; height: auto; }
.sec-hero.center { margin-left: auto; margin-right: auto; }
.sec-hero.center .dgm { display: block; margin: 0 auto; }
.sec-hero + .split, .sec-hero + h2 { margin-top: 0; }

/* ======================================================================
   INTERIOR PAGES — shared components (about, contact, blog, article, legal, 404)
   ====================================================================== */

/* back / breadcrumb link */
.crumbs { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; display: inline-flex; align-items: center; gap: 0.5rem; color: var(--ink-text-2); }
.crumbs:hover { color: #fff; }
.crumbs svg { width: 14px; height: 14px; }

/* page hero (interior) */
.page-hero { background: var(--ink); color: var(--ink-text); border-bottom: 1px solid var(--ink-line); }
.page-hero .wrap { padding: clamp(3rem, 7vw, 6rem) 0 clamp(2.5rem, 5vw, 4rem); }
.page-hero .kicker { margin-bottom: 1.6rem; }
.page-hero h1 { color: #fff; font-size: clamp(2.2rem, 5.4vw, 4rem); letter-spacing: -0.035em; line-height: 1.02; max-width: 18ch; }
.page-hero h1 .accent { color: var(--accent); }
.page-hero .lede { margin-top: 1.6rem; max-width: 46ch; }

/* generic tight intro measure */
.intro { max-width: 60ch; }

/* ---- about / editorial content blocks ---- */
.rule-top { border-top: 1px solid var(--rule-2); padding-top: clamp(2rem,4vw,3rem); }
.pair { display: grid; grid-template-columns: minmax(0,4fr) minmax(0,6fr); gap: clamp(2rem,5vw,5rem); align-items: start; }
.pair .pair-k { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); }
.pair h2 { font-size: clamp(1.5rem,2.6vw,2.1rem); margin-top: 0.6rem; letter-spacing: -0.025em; }

/* capability list (about) */
.caps { border-top: 1px solid var(--rule-2); }
.caps li { display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; padding: 1.05rem 0; border-bottom: 1px solid var(--rule); font-size: 1.05rem; align-items: baseline; }
.caps li .k { font-family: var(--mono); font-size: 0.72rem; color: var(--accent); }

/* ---- blog list ---- */
.posts { border-top: 1px solid var(--rule-2); }
.post { display: grid; grid-template-columns: minmax(0,3fr) minmax(0,7fr); gap: clamp(1rem,3vw,3rem); padding: clamp(2rem,3.5vw,2.75rem) 0; border-bottom: 1px solid var(--rule); align-items: start; }
.post-meta { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); line-height: 1.9; }
.post-meta .cat { color: var(--accent); display: block; }
.post h2 { font-size: clamp(1.35rem,2.2vw,1.9rem); letter-spacing: -0.025em; margin-bottom: 0.7rem; }
.post h2 a:hover { color: var(--accent); }
.post p { color: var(--text-2); font-size: 1.05rem; line-height: 1.55; margin-bottom: 1rem; max-width: 60ch; }

/* ---- article ---- */
.article-head { max-width: 820px; }
.article-tags { display: flex; gap: 1.2rem; margin-bottom: 1.5rem; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); }
.article-tags .cat { color: var(--accent); }
.article-head h1 { font-size: clamp(2rem,4.4vw,3.3rem); letter-spacing: -0.035em; line-height: 1.05; }
.article-body { max-width: 740px; margin-top: clamp(2rem,4vw,3rem); }
.article-body > p { font-size: 1.14rem; line-height: 1.75; color: var(--text-2); margin: 1.5rem 0; }
.article-body .lead { font-size: 1.32rem; line-height: 1.55; color: var(--text); font-weight: 400; letter-spacing: -0.01em; }
.article-body h2 { font-size: clamp(1.5rem,2.6vw,2rem); letter-spacing: -0.025em; margin: clamp(2.5rem,5vw,3.5rem) 0 1.1rem; padding-top: clamp(2rem,4vw,2.5rem); border-top: 1px solid var(--rule); }
.article-body h3 { font-size: 1.2rem; margin: 2rem 0 0.6rem; letter-spacing: -0.015em; }
.article-body ul { margin: 1.3rem 0; }
.article-body li { position: relative; padding-left: 1.6rem; margin-bottom: 0.8rem; font-size: 1.08rem; line-height: 1.6; color: var(--text-2); }
.article-body li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 8px; height: 1px; background: var(--accent); }
.article-body li b, .article-body p b { color: var(--text); font-weight: 600; }
.article-figure { margin: clamp(2rem,4vw,3rem) 0; }
.article-figure .imgs { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.article-figure img { width: 100%; border: 1px solid var(--rule-2); border-radius: 4px; }
.article-figure figcaption { margin-top: 0.9rem; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); }
.note { border-left: 2px solid var(--accent); padding: 0.4rem 0 0.4rem 1.4rem; margin: 2rem 0; color: var(--text-2); font-size: 1.05rem; }
.article-cta { max-width: 740px; margin-top: clamp(3rem,6vw,4.5rem); padding-top: clamp(2rem,4vw,3rem); border-top: 1px solid var(--rule-2); }
.article-cta h3 { font-size: clamp(1.4rem,2.4vw,1.9rem); letter-spacing: -0.025em; max-width: 22ch; }
.article-cta p { color: var(--text-2); margin: 1rem 0 1.8rem; max-width: 54ch; }

/* ---- contact ---- */
.contact-grid { display: grid; grid-template-columns: minmax(0,5fr) minmax(0,7fr); gap: clamp(2.5rem,5vw,5rem); }
.info-list { border-top: 1px solid var(--rule-2); }
.info-list .row-i { display: grid; grid-template-columns: 8rem 1fr; gap: 1rem; padding: 1.1rem 0; border-bottom: 1px solid var(--rule); align-items: baseline; }
.info-list .row-i .k { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); }
.info-list .row-i .v { font-size: 1.08rem; color: var(--text); }
.info-list .row-i .v a:hover { color: var(--accent); }
.steps { border-top: 1px solid var(--rule-2); }
.step { display: grid; grid-template-columns: 3.5rem 1fr; gap: 1rem; padding: 1.5rem 0; border-bottom: 1px solid var(--rule); }
.step .sn { font-family: var(--mono); font-size: 0.8rem; color: var(--accent); }
.step h3 { font-size: 1.15rem; margin-bottom: 0.35rem; }
.step p { color: var(--text-2); font-size: 1rem; line-height: 1.5; }

/* ---- legal document ---- */
.legal-layout { display: grid; grid-template-columns: 240px minmax(0,1fr); gap: clamp(2.5rem,5vw,5rem); align-items: start; }
.legal-toc { position: sticky; top: 96px; }
.legal-toc h2 { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 1rem; font-weight: 500; }
.legal-toc ol { list-style: none; counter-reset: t; }
.legal-toc li { counter-increment: t; }
.legal-toc a { display: block; padding: 0.4rem 0 0.4rem 2.2rem; font-size: 0.9rem; color: var(--text-muted); position: relative; border-left: 1px solid var(--rule); }
.legal-toc a::before { content: counter(t,decimal-leading-zero); position: absolute; left: 0.7rem; font-family: var(--mono); font-size: 0.72rem; color: var(--accent); }
.legal-toc a:hover { color: var(--text); border-left-color: var(--accent); }
.legal-content section { scroll-margin-top: 96px; padding-bottom: clamp(2rem,4vw,3rem); margin-bottom: clamp(2rem,4vw,3rem); border-bottom: 1px solid var(--rule); }
.legal-content section:last-child { border-bottom: 0; }
.legal-content h2 { display: flex; gap: 1rem; align-items: baseline; font-size: clamp(1.3rem,2.2vw,1.7rem); letter-spacing: -0.02em; margin-bottom: 1.1rem; }
.legal-content h2 .sn { font-family: var(--mono); font-size: 0.82rem; color: var(--accent); flex: 0 0 auto; }
.legal-content h3 { font-size: 1.1rem; margin: 1.5rem 0 0.5rem; }
.legal-content p { color: var(--text-2); margin-bottom: 1rem; font-size: 1.04rem; line-height: 1.65; }
.legal-content ul { margin: 0.6rem 0 1.2rem 0; }
.legal-content li { position: relative; padding-left: 1.5rem; margin-bottom: 0.5rem; color: var(--text-2); font-size: 1.02rem; line-height: 1.55; }
.legal-content li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 7px; height: 1px; background: var(--accent); }
.legal-content li b, .legal-content p b { color: var(--text); font-weight: 600; }
.callout { border: 1px solid var(--rule-2); border-left: 2px solid var(--accent); padding: 1.2rem 1.4rem; margin: 1.4rem 0; font-size: 1rem; line-height: 1.6; color: var(--text-2); background: var(--paper-2); }
.callout b { display: block; color: var(--text); margin-bottom: 0.3rem; }
.policy-table { width: 100%; border-collapse: collapse; font-size: 0.98rem; margin: 1.4rem 0; }
.policy-table th { text-align: left; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); padding: 0.7rem 1rem 0.7rem 0; border-bottom: 1px solid var(--rule-2); }
.policy-table td { padding: 0.85rem 1rem 0.85rem 0; border-bottom: 1px solid var(--rule); color: var(--text-2); vertical-align: top; }

/* ---- 404 ---- */
.nf { min-height: 62vh; display: flex; align-items: center; }
.nf .code { font-family: var(--mono); font-size: clamp(4rem,14vw,9rem); color: var(--accent); line-height: 1; letter-spacing: -0.02em; }
.nf h1 { font-size: clamp(1.8rem,3.4vw,2.6rem); margin: 1rem 0 1rem; letter-spacing: -0.03em; }
.nf p { color: var(--ink-text-2); max-width: 44ch; margin-bottom: 2rem; }

@media (max-width: 900px) {
  .pair, .contact-grid, .legal-layout, .post, .caps li, .info-list .row-i { grid-template-columns: 1fr; }
  .legal-toc { display: none; }
  .article-figure .imgs { grid-template-columns: 1fr; }
  .post-meta { line-height: 1.7; margin-bottom: 0.5rem; }
  .info-list .row-i { gap: 0.2rem; }
}

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }