/* Theorema Tech — base + components */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-feature-settings: "ss01", "cv11";
  font-size: 16px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background 360ms var(--ease), color 360ms var(--ease);
}

::selection { background: var(--selection-bg); color: var(--selection-fg); }

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.rule { border-top: 1px solid var(--line); }
.rule-strong { border-top: 1px solid var(--line-strong); }
.rule-bottom { border-bottom: 1px solid var(--line); }
.rule-bottom-strong { border-bottom: 1px solid var(--line-strong); }

/* ---------- Type scale ---------- */
.mono { font-family: var(--font-mono); font-weight: 400; letter-spacing: 0.01em; }
.serif { font-family: var(--font-serif); font-weight: 400; }
.italic-serif { font-family: var(--font-serif); font-style: italic; font-weight: 400; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--fg-mute);
}

h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 500; letter-spacing: -0.02em; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }

.display {
  font-size: clamp(54px, 9.2vw, 168px);
  line-height: 0.92;
  letter-spacing: -0.045em;
  font-weight: 500;
}
.display .serif-italic { font-family: var(--font-serif); font-style: italic; font-weight: 400; letter-spacing: -0.02em; }

.h1 { font-size: clamp(40px, 5.4vw, 96px); line-height: 0.96; letter-spacing: -0.035em; font-weight: 500; }
.h2 { font-size: clamp(32px, 4vw, 64px); line-height: 1.02; letter-spacing: -0.03em; font-weight: 500; }
.h3 { font-size: clamp(24px, 2.2vw, 36px); line-height: 1.1; letter-spacing: -0.02em; font-weight: 500; }
.lede { font-size: clamp(18px, 1.5vw, 24px); line-height: 1.35; color: var(--fg); }

.small { font-size: 13px; color: var(--fg-mute); }

/* ---------- Halmos (QED) ---------- */
.qed {
  display: inline-block;
  width: 0.62em;
  height: 0.62em;
  background: currentColor;
  transform: translateY(0.05em);
  margin-left: 0.4em;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--bg) 92%, transparent);
  backdrop-filter: saturate(120%) blur(14px);
  -webkit-backdrop-filter: saturate(120%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header .row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 64px;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand .logo { height: 22px; }
.brand .logo-mark { width: 26px; height: 26px; }
.brand .logo-text {
  font-weight: 500;
  letter-spacing: -0.02em;
  font-size: 17px;
}
.brand .logo-text .slash { color: var(--accent); }

.nav { display: flex; gap: 28px; justify-content: center; }
.nav a {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--fg);
  padding: 6px 0;
  position: relative;
  opacity: 0.85;
  transition: opacity 200ms var(--ease);
}
.nav a:hover { opacity: 1; }
.nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: var(--accent);
}
.nav a .num {
  font-size: 9.5px;
  color: var(--fg-mute);
  margin-right: 6px;
  vertical-align: top;
  position: relative;
  top: 2px;
}

.header-right { display: flex; align-items: center; gap: 14px; justify-content: flex-end; }
.lang {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  height: 30px;
  background: transparent;
}
.lang button {
  font-family: var(--font-mono);
  font-size: 11.5px;
  padding: 0 12px;
  height: 100%;
  color: var(--fg-mute);
  letter-spacing: 0.06em;
  transition: color 180ms var(--ease), background 180ms var(--ease);
}
.lang button.active { background: var(--fg); color: var(--bg); }

.cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 38px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--fg);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  border: 1px solid var(--fg);
  transition: transform 220ms var(--ease), background 220ms var(--ease), color 220ms var(--ease);
  white-space: nowrap;
}
.cta:hover { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.cta .arrow { width: 12px; height: 12px; }

.cta.ghost { background: transparent; color: var(--fg); border-color: var(--line-strong); }
.cta.ghost:hover { background: var(--fg); color: var(--bg); border-color: var(--fg); }

.cta.lg { height: 56px; padding: 0 28px; font-size: 13.5px; }

/* mobile nav toggle */
.menu-toggle { display: none; }

@media (max-width: 880px) {
  .site-header .row { grid-template-columns: 1fr auto; }
  .nav { display: none; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: var(--bg);
    padding: 24px var(--gutter);
    border-bottom: 1px solid var(--line);
    gap: 14px;
  }
  .menu-toggle {
    display: inline-flex;
    width: 38px; height: 38px;
    align-items: center; justify-content: center;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
  }
  .menu-toggle span {
    display: block;
    width: 14px; height: 1.5px;
    background: var(--fg);
    position: relative;
  }
  .menu-toggle span::before, .menu-toggle span::after {
    content: ""; position: absolute; left: 0; right: 0; height: 1.5px; background: var(--fg);
  }
  .menu-toggle span::before { top: -5px; }
  .menu-toggle span::after { top: 5px; }
  .cta.hide-mobile { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  padding: clamp(28px, 5vw, 56px) 0 clamp(56px, 9vw, 120px);
  position: relative;
}
.hero .meta-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--fg-mute);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
.hero .meta-row .right { text-align: right; }
.hero .title-block {
  padding-top: clamp(40px, 6vw, 80px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.hero .theorem-label {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--accent);
  text-transform: uppercase;
}
.hero .theorem-label::before {
  content: "";
  width: 24px; height: 1px;
  background: var(--accent);
  display: inline-block;
  transform: translateY(-4px);
}
.hero h1 { max-width: 18ch; }
.hero .sub-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 80px);
  padding-top: clamp(32px, 4vw, 64px);
  border-top: 1px solid var(--line);
  margin-top: clamp(40px, 5vw, 80px);
}
.hero .sub-grid p { font-size: clamp(15px, 1.1vw, 18px); line-height: 1.5; }
.hero .cta-row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; padding-top: 24px; }

/* ---------- Section header ---------- */
.section {
  padding: clamp(64px, 9vw, 140px) 0;
  border-top: 1px solid var(--line);
}
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 24px;
  align-items: baseline;
  padding-bottom: clamp(40px, 5vw, 80px);
}
.section-head .left {
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--fg-mute);
}
.section-head .left .num { color: var(--accent); margin-right: 8px; }
.section-head h2 { max-width: 18ch; }

@media (max-width: 720px) {
  .section-head { grid-template-columns: 1fr; }
}

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--line);
}
.service {
  display: grid;
  grid-template-columns: 80px 1fr 1.4fr 220px;
  align-items: start;
  gap: 24px;
  padding: clamp(28px, 4vw, 48px) 0;
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: background 280ms var(--ease);
}
.service:hover { background: color-mix(in oklab, var(--bg) 80%, var(--fg) 5%); }
.service .num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-mute);
  padding-top: 14px;
}
.service h3 { font-size: clamp(28px, 3.4vw, 56px); line-height: 1; letter-spacing: -0.03em; }
.service .desc { font-size: 15.5px; line-height: 1.5; max-width: 50ch; }
.service .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.service .tags span {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--fg-mute);
}
.service .glyph {
  position: absolute;
  right: var(--gutter);
  top: 50%;
  transform: translate(0, -50%);
  width: 64px; height: 64px;
  color: var(--fg-mute);
  pointer-events: none;
  opacity: 0;
  transition: opacity 240ms var(--ease), transform 240ms var(--ease);
}
.service:hover .glyph { opacity: 1; transform: translate(-12px, -50%); color: var(--accent); }

@media (max-width: 880px) {
  .service { grid-template-columns: 50px 1fr; gap: 16px; }
  .service .desc { grid-column: 2 / -1; }
  .service .tags { grid-column: 2 / -1; }
  .service .glyph { display: none; }
}

/* ---------- Axioms / principles ---------- */
.axioms {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
}
.axiom {
  padding: clamp(28px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.axiom:nth-child(2n) { border-right: 0; }
.axiom .num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--accent);
  letter-spacing: 0.12em;
}
.axiom h3 { font-size: clamp(20px, 1.8vw, 28px); letter-spacing: -0.02em; }
.axiom p { color: var(--fg-mute); }
.axiom .formula { font-family: var(--font-serif); font-style: italic; font-size: 26px; color: var(--fg); padding-top: 8px; }

@media (max-width: 720px) { .axioms { grid-template-columns: 1fr; } .axiom { border-right: 0; } }

/* ---------- Stack marquee ---------- */
.marquee {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  padding: 22px 0;
  background: var(--bg-2);
  white-space: nowrap;
  display: flex;
  gap: 48px;
}
.marquee-track {
  display: inline-flex;
  gap: 48px;
  animation: marquee 48s linear infinite;
  flex-shrink: 0;
  padding-left: 48px;
}
.marquee-track span {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--fg);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.marquee-track span::after {
  content: "—";
  margin-left: 16px;
  color: var(--fg-mute);
}
@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ---------- Cases ---------- */
.cases-list { border-top: 1px solid var(--line); }
.case-row {
  display: grid;
  grid-template-columns: 100px minmax(0, 2.4fr) minmax(0, 1fr) minmax(0, 1fr) 80px;
  align-items: center;
  padding: clamp(20px, 2.6vw, 32px) 0;
  border-bottom: 1px solid var(--line);
  gap: 18px;
  transition: background 240ms var(--ease);
  cursor: pointer;
}
.case-row:hover { background: color-mix(in oklab, var(--bg) 80%, var(--fg) 5%); }
.case-row .yr { font-family: var(--font-mono); font-size: 12.5px; color: var(--fg-mute); }
.case-row .title { font-size: clamp(20px, 1.8vw, 28px); letter-spacing: -0.02em; }
.case-row .desc { font-size: 14px; color: var(--fg-mute); }
.case-row .tag { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); }
.case-row .arrow {
  width: 26px; height: 26px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background 240ms var(--ease), color 240ms var(--ease), border-color 240ms var(--ease);
}
.case-row:hover .arrow { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }

@media (max-width: 880px) {
  .case-row { grid-template-columns: 1fr auto; }
  .case-row .yr, .case-row .desc, .case-row .tag { grid-column: 1 / -1; }
  .case-row .arrow { grid-column: 2; grid-row: 1; }
}

/* ---------- Process / Proof ---------- */
.proof {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
}
.step {
  display: grid;
  grid-template-columns: 120px minmax(0, 1.4fr) minmax(0, 2fr);
  align-items: start;
  gap: 24px;
  padding: clamp(24px, 3.4vw, 40px) 0;
  border-bottom: 1px solid var(--line);
}
.step .num { font-family: var(--font-mono); font-size: 13px; color: var(--fg-mute); }
.step .num .acc { color: var(--accent); }
.step .label { font-family: var(--font-serif); font-style: italic; font-size: clamp(24px, 2.4vw, 36px); letter-spacing: -0.02em; }
.step .desc { font-size: 15.5px; line-height: 1.55; color: var(--fg); }
.step .desc .em { color: var(--accent); }
@media (max-width: 720px) {
  .step { grid-template-columns: 1fr; gap: 8px; }
}

/* ---------- Insights / Blog ---------- */
.insights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}
.insight {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(24px, 3vw, 36px);
  border-right: 1px solid var(--line);
  min-height: 320px;
  position: relative;
  transition: background 240ms var(--ease);
  cursor: pointer;
}
.insight:last-child { border-right: 0; }
.insight:hover { background: color-mix(in oklab, var(--bg) 80%, var(--fg) 5%); }
.insight .meta { font-family: var(--font-mono); font-size: 11.5px; color: var(--fg-mute); text-transform: uppercase; letter-spacing: 0.1em; display: flex; justify-content: space-between; }
.insight h3 { font-size: clamp(20px, 1.6vw, 26px); letter-spacing: -0.02em; line-height: 1.15; margin-top: auto; }
.insight .read { font-family: var(--font-mono); font-size: 12px; color: var(--accent); margin-top: 12px; }

@media (max-width: 880px) { .insights { grid-template-columns: 1fr; } .insight { border-right: 0; border-bottom: 1px solid var(--line); } .insight:last-child { border-bottom: 0; } }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  display: grid;
  grid-template-columns: 60px 1fr 40px;
  gap: 24px;
  align-items: center;
  padding: clamp(20px, 2.4vw, 32px) 0;
  width: 100%;
  text-align: left;
  cursor: pointer;
}
.faq-q .num { font-family: var(--font-mono); font-size: 12.5px; color: var(--fg-mute); }
.faq-q .q { font-size: clamp(18px, 1.5vw, 24px); letter-spacing: -0.02em; }
.faq-q .ico {
  width: 22px; height: 22px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  position: relative;
  transition: background 200ms var(--ease), color 200ms var(--ease), transform 240ms var(--ease);
}
.faq-q .ico::before, .faq-q .ico::after {
  content: ""; position: absolute; left: 50%; top: 50%;
  width: 9px; height: 1px; background: currentColor;
  transform: translate(-50%, -50%);
}
.faq-q .ico::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform 240ms var(--ease); }
.faq-item[open] .faq-q .ico::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq-item[open] .faq-q .ico { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.faq-a {
  padding: 0 0 clamp(20px, 2.4vw, 32px) calc(60px + 24px);
  max-width: 70ch;
  font-size: 15.5px; line-height: 1.55; color: var(--fg-mute);
}

/* ---------- Contact CTA ---------- */
.cta-block {
  padding: clamp(80px, 12vw, 200px) 0;
  border-top: 1px solid var(--line);
  position: relative;
}
.cta-block .pre { color: var(--accent); }
.cta-block h2 { font-size: clamp(48px, 8vw, 144px); line-height: 0.92; letter-spacing: -0.04em; max-width: 14ch; }
.cta-block h2 .underline { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 12px; }
.cta-block .row { display: flex; gap: 16px; padding-top: clamp(32px, 4vw, 56px); flex-wrap: wrap; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--fg);
  color: var(--bg);
  padding: clamp(48px, 6vw, 96px) 0 36px;
  font-family: var(--font-sans);
}
.site-footer a { color: inherit; }
.site-footer .mark { font-size: clamp(80px, 16vw, 240px); line-height: 0.86; letter-spacing: -0.04em; font-weight: 500; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.18); }
.site-footer .cols {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 24px;
  padding-top: 36px;
}
.site-footer .col h4 { font-family: var(--font-mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.12em; opacity: 0.55; font-weight: 400; margin-bottom: 12px; }
.site-footer .col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; font-size: 14.5px; }
.site-footer .col ul a { opacity: 0.8; transition: opacity 200ms; }
.site-footer .col ul a:hover { opacity: 1; }
.site-footer .col p { opacity: 0.7; font-size: 14px; max-width: 32ch; }
.site-footer .bottom {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding-top: 36px;
  font-family: var(--font-mono); font-size: 11.5px;
  opacity: 0.55;
  flex-wrap: wrap;
}

@media (max-width: 880px) {
  .site-footer .cols { grid-template-columns: 1fr 1fr; }
  .site-footer .col.brand { grid-column: 1 / -1; }
}

/* ---------- Page hero (subpages) ---------- */
.page-hero {
  padding: clamp(40px, 6vw, 80px) 0 clamp(56px, 8vw, 100px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 64px);
  border-bottom: 1px solid var(--line);
  align-items: end;
}
.page-hero h1 { font-size: clamp(54px, 8vw, 144px); line-height: 0.94; letter-spacing: -0.04em; }
.page-hero .meta { font-family: var(--font-mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--fg-mute); padding-bottom: 12px; }
.page-hero p { font-size: clamp(16px, 1.3vw, 20px); line-height: 1.5; max-width: 50ch; color: var(--fg); }
@media (max-width: 720px) { .page-hero { grid-template-columns: 1fr; } }

/* ---------- Stats / numbers ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
}
.stat {
  padding: clamp(20px, 3vw, 36px);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 8px;
}
.stat:last-child { border-right: 0; }
.stat .v { font-size: clamp(40px, 5vw, 84px); letter-spacing: -0.04em; line-height: 0.95; }
.stat .l { font-family: var(--font-mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--fg-mute); }
@media (max-width: 720px) { .stats { grid-template-columns: 1fr 1fr; } .stat:nth-child(2) { border-right: 0; } }

/* ---------- Form (contact) ---------- */
.brief {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 56px);
  padding-top: clamp(40px, 5vw, 64px);
}
@media (max-width: 880px) { .brief { grid-template-columns: 1fr; } }
.brief .col label {
  display: block;
  font-family: var(--font-mono); font-size: 11.5px;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--fg-mute);
  padding-bottom: 10px;
}
.brief .col input, .brief .col textarea, .brief .col select {
  width: 100%;
  background: transparent;
  border: 0; border-bottom: 1px solid var(--line-strong);
  padding: 14px 0 14px;
  font: inherit; color: var(--fg);
  font-size: 18px;
  outline: none;
  transition: border-color 200ms var(--ease);
}
.brief .col textarea { min-height: 140px; resize: vertical; }
.brief .col input:focus, .brief .col textarea:focus, .brief .col select:focus { border-color: var(--accent); }
.brief .col .field { padding-bottom: 28px; }
.brief .chip-row { display: flex; flex-wrap: wrap; gap: 8px; padding-bottom: 4px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 12px;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  cursor: pointer;
  transition: all 200ms var(--ease);
  user-select: none;
}
.chip:hover { background: color-mix(in oklab, var(--bg) 70%, var(--fg) 10%); }
.chip.active { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }

/* ---------- Diagram block (math) ---------- */
.diagram {
  border: 1px solid var(--line);
  padding: clamp(24px, 3vw, 36px);
  background: var(--bg-2);
  font-family: var(--font-mono);
  font-size: 13px;
  white-space: pre;
  overflow-x: auto;
  color: var(--fg);
  line-height: 1.7;
}
.diagram .acc { color: var(--accent); }

/* ---------- Logo SVGs ---------- */
.brand .logo svg, .brand .logo-mark svg { width: 100%; height: 100%; display: block; }

/* ---------- Reveal on scroll (simple, safe-by-default) ---------- */
/* Elements are visible by default; JS adds .reveal-armed to opt-into the fade-in. */
.reveal { opacity: 1; transform: none; }
.reveal-armed { opacity: 0; transform: translateY(14px); transition: opacity 700ms var(--ease), transform 700ms var(--ease); }
.reveal-armed.in { opacity: 1; transform: translateY(0); }

/* ---------- Reduce motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .marquee-track { animation: none; }
}

/* ---------- Util ---------- */
.hide { display: none !important; }
[data-i18n-hidden="true"] { display: none !important; }
.row-flex { display: flex; align-items: center; gap: 16px; }
.spread { display: flex; justify-content: space-between; align-items: baseline; }
.pad-top-sm { padding-top: 12px; }
.muted { color: var(--fg-mute); }
.accent { color: var(--accent); }