/* =====================================================================
   zunoer-hub / group portal
   Swiss-industrial visual language: dot matrix, 2px rules, asymmetric
   grids, oversized display type, mono micro-labels.
   Zero external dependencies: system fonts only, all assets local.
   ===================================================================== */

:root {
  --ink:    #111114;
  --paper:  #F3F1EA;
  --signal: #FF4B1F;
  --volt:   #D6FF3D;
  --line:   #D8D4C8;
  --mute:   #6B6A66;
  --mute-on-ink: rgba(243, 241, 234, .58);
  --hair-on-ink: rgba(243, 241, 234, .34);

  --disp: "Avenir Next", Futura, "Helvetica Neue", Arial, sans-serif;
  --mono: "SF Mono", Menlo, monospace;

  --rule: 2px;
  --maxw: 1280px;
  --pad: clamp(20px, 4.5vw, 64px);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background-color: var(--paper);
  background-image: radial-gradient(var(--line) 1px, transparent 1px);
  background-size: 22px 22px;
  font-family: var(--disp);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

.mono {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  line-height: 1.5;
}

:focus-visible { outline: 3px solid var(--signal); outline-offset: 3px; }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  padding: 12px 18px;
  font-family: var(--mono);
  font-size: 12px;
}
.skip:focus { left: 12px; top: 12px; }

/* The one coloured element of the identity: the indicator LED.
   Orange on light ground, volt green on dark ground. */
.led {
  flex: 0 0 auto;
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--signal);
  animation: blink 2.6s infinite;
}
.led-volt { background: var(--volt); }
@keyframes blink { 0%, 62%, 100% { opacity: 1; } 72%, 88% { opacity: .18; } }

/* ============================ TOP BAR ============================ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--paper);
  border-bottom: var(--rule) solid var(--ink);
}
.topbar-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 13px var(--pad);
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 42px);
}
.lockup { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.lockup-sym { width: 34px; height: 34px; }
.lockup-mark { width: 150px; height: auto; }
.topbar-tag {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-left: auto;
  color: var(--mute);
  font-size: 10px;
}
.nav { display: flex; gap: clamp(16px, 2.4vw, 32px); }
.nav a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: var(--rule) solid transparent;
  transition: color .16s ease, border-color .16s ease;
}
.nav a:hover, .nav a:focus-visible { color: var(--signal); border-color: var(--signal); }

/* ============================== HERO ============================== */
.hero { border-bottom: var(--rule) solid var(--ink); }
.hero-grid { display: grid; grid-template-columns: 1.35fr 1fr; }
.hero-main {
  padding: clamp(56px, 7vw, 98px) clamp(24px, 5vw, 84px);
  border-right: var(--rule) solid var(--ink);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.eyebrow { margin: 0 0 clamp(28px, 4vw, 48px); color: var(--mute); font-size: 10.5px; }
.idx { color: var(--signal); margin-right: 10px; }
.eyebrow-on-ink { color: var(--mute-on-ink); }
.eyebrow-on-ink .idx { color: var(--volt); }

h1, h2, h3 { margin: 0; font-family: var(--disp); font-weight: 700; }
h1 {
  font-size: clamp(3.2rem, 8.6vw, 8.6rem);
  letter-spacing: -.055em;
  line-height: .9;
}
.hl { color: var(--signal); }
.hero-copy {
  margin: clamp(28px, 3.6vw, 46px) 0 0;
  max-width: 52ch;
  font-size: clamp(1rem, 1.2vw, 1.12rem);
  line-height: 1.65;
}
.hero-copy strong { border-bottom: var(--rule) solid var(--signal); }
.cta {
  margin-top: clamp(32px, 4vw, 52px);
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 20px;
  padding: 16px 22px;
  background: var(--signal);
  color: var(--ink);
  border: var(--rule) solid var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease;
}
.cta:hover, .cta:focus-visible {
  transform: translate(-4px, -4px);
  box-shadow: 6px 6px 0 var(--ink);
}
.cta-arrow { font-size: 17px; line-height: 1; }

.hero-side {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(30px, 3.6vw, 52px);
  min-height: 470px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 26px;
}
.hero-side-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--mute-on-ink);
  font-size: 10.5px;
}
.hero-side-mark { width: 100%; max-width: 420px; height: auto; align-self: center; }
.hero-side-bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px;
  border-top: var(--rule) solid var(--hair-on-ink);
  padding-top: 18px;
}
.hero-side-bottom .mono { font-size: 10px; color: var(--mute-on-ink); }
.hero-side-num {
  margin: 0;
  font-size: clamp(3rem, 6vw, 5.4rem);
  letter-spacing: -.06em;
  line-height: .8;
  color: var(--volt);
  white-space: nowrap;
}
.hero-side-num .mono {
  display: inline-block;
  margin-left: 8px;
  font-size: 10px;
  letter-spacing: .08em;
  line-height: 1.35;
  vertical-align: middle;
  white-space: normal;
}

.hero-strip {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 13px clamp(24px, 5vw, 84px);
  border-top: var(--rule) solid var(--ink);
  color: var(--mute);
  font-size: 10px;
}

/* ========================= WORDMARK BAND ========================= */
.markband {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: clamp(16px, 3vw, 40px);
  padding: clamp(28px, 4vw, 52px) var(--pad);
  border-bottom: var(--rule) solid var(--ink);
}
.markband-side { font-size: 10.5px; color: var(--mute); }
.markband-side:last-child { text-align: right; }
.markband-img { width: min(760px, 58vw); height: auto; justify-self: center; }

/* ============================= BRANDS ============================= */
.brands { padding: clamp(60px, 8vw, 112px) var(--pad) 0; }
.sec-head, .brand-row { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.sec-head { margin-bottom: clamp(32px, 4vw, 52px); }
.sec-head-row {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: clamp(24px, 5vw, 70px);
  align-items: end;
}
.sec-head h2, .about-left h2 {
  font-size: clamp(2.4rem, 5.4vw, 5rem);
  letter-spacing: -.05em;
  line-height: .95;
}
.sec-intro { margin: 0; max-width: 46ch; font-size: 1rem; line-height: 1.65; color: var(--mute); }

/* Three bands with different split ratios: 7/5, 5/7, 8/4.
   The 2px grid gap over an ink ground draws the rules — no cards. */
.brand-row {
  display: grid;
  gap: var(--rule);
  background: var(--ink);
  border: var(--rule) solid var(--ink);
  border-bottom: 0;
}
.brand-row:last-child { border-bottom: var(--rule) solid var(--ink); }
.row-a { grid-template-columns: 7fr 5fr; }
.row-b { grid-template-columns: 5fr 7fr; }
.row-c { grid-template-columns: 8fr 4fr; }

.cell {
  position: relative;
  overflow: hidden;
  min-height: 340px;
  padding: clamp(24px, 2.8vw, 40px);
  background: var(--paper);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 26px;
}
.cell.ink { background: var(--ink); color: var(--paper); }
.cell-top { display: flex; align-items: center; justify-content: space-between; }
.cell-idx { font-size: 10.5px; color: var(--mute); }
.cell.ink .cell-idx { color: var(--mute-on-ink); }

.cell-body { position: relative; z-index: 1; }
.cell-sym { width: 36px; height: 36px; margin-bottom: 18px; }
.cell h3 {
  font-size: clamp(2rem, 3.5vw, 3.5rem);
  letter-spacing: -.045em;
  line-height: .95;
}
.cell-wide h3 { font-size: clamp(2.7rem, 5vw, 5rem); }
.cell-compact h3, .cell-tight h3 { font-size: clamp(1.8rem, 2.6vw, 2.8rem); }
.cell-cat { margin: 14px 0 0; color: var(--signal); font-size: 10.5px; }
.cell.ink .cell-cat { color: var(--volt); }
.cell-desc {
  margin: 18px 0 0;
  max-width: 44ch;
  font-size: .95rem;
  line-height: 1.65;
  color: var(--mute);
}
.cell.ink .cell-desc { color: var(--mute-on-ink); }

.cell-link {
  position: relative;
  z-index: 1;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 6px;
  border-bottom: var(--rule) solid var(--ink);
  font-size: 10.5px;
  text-decoration: none;
  transition: color .16s ease, border-color .16s ease;
}
.cell.ink .cell-link { border-color: var(--paper); }
.cell-link:hover, .cell-link:focus-visible { color: var(--signal); border-color: var(--signal); }
.cell.ink .cell-link:hover, .cell.ink .cell-link:focus-visible { color: var(--volt); border-color: var(--volt); }
.cell-link span { font-size: 13px; }

.ghost-num {
  margin: 0 0 10px;
  font-family: var(--disp);
  font-weight: 700;
  font-size: clamp(5rem, 9vw, 9rem);
  letter-spacing: -.08em;
  line-height: .75;
  color: rgba(17, 17, 20, .09);
}
.cell.ink .ghost-num { color: rgba(243, 241, 234, .13); }

.cell-split .cell-body, .cell-horizontal .cell-body {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: end;
}
.split-right .cell-link { margin-top: 22px; }

.mini-spec { margin: 0; border-top: var(--rule) solid var(--ink); }
.mini-spec div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 10px;
}
.mini-spec dt { color: var(--mute); }
.mini-spec dd { margin: 0; text-align: right; }

/* ============================== ABOUT ============================== */
.about {
  margin-top: clamp(72px, 10vw, 140px);
  border-top: var(--rule) solid var(--ink);
  padding: clamp(56px, 7vw, 96px) var(--pad) clamp(60px, 8vw, 110px);
}
.about-grid, .disclaimer { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.about-grid {
  display: grid;
  grid-template-columns: 1.35fr .65fr;
  gap: clamp(32px, 6vw, 80px);
}
.about-lead {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: 1.02rem;
  line-height: 1.65;
}
.about-right {
  border-left: var(--rule) solid var(--ink);
  padding-left: clamp(24px, 3vw, 44px);
}
.about-right-title { margin: 0 0 20px; color: var(--mute); font-size: 10.5px; }
.speclist { margin: 0; }
.speclist div {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}
.speclist dt { color: var(--mute); font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; }
.speclist dd { margin: 0; font-family: var(--mono); font-size: 10.5px; letter-spacing: .05em; text-align: right; }
.about-mark { width: 64px; height: 64px; margin-top: 30px; }

.disclaimer {
  margin-top: clamp(48px, 6vw, 80px);
  border: var(--rule) solid var(--ink);
  padding: clamp(24px, 3vw, 38px);
  background: var(--paper);
}
.disclaimer-label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  color: var(--signal);
  font-size: 10.5px;
}
.disclaimer p:last-child {
  margin: 0;
  max-width: 92ch;
  font-size: 1rem;
  line-height: 1.65;
}
.disclaimer strong { font-weight: 700; }

/* ============================= CONTACT ============================= */
.contact {
  background: var(--ink);
  color: var(--paper);
  border-top: var(--rule) solid var(--ink);
  padding: clamp(64px, 9vw, 120px) var(--pad);
}
.contact-inner { max-width: var(--maxw); margin: 0 auto; }
.contact h2 {
  font-size: clamp(2.8rem, 7vw, 6rem);
  letter-spacing: -.05em;
  line-height: .92;
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--rule);
  background: var(--hair-on-ink);
  border: var(--rule) solid var(--hair-on-ink);
  margin-top: clamp(40px, 5vw, 70px);
}
.contact-item {
  background: var(--ink);
  padding: clamp(22px, 3vw, 36px);
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-decoration: none;
  transition: background .16s ease;
}
a.contact-item:hover, a.contact-item:focus-visible { background: #1D1D22; }
.contact-item .mono { color: var(--mute-on-ink); font-size: 10.5px; }
.contact-value {
  font-family: var(--disp);
  font-size: clamp(1.1rem, 2vw, 1.7rem);
  font-weight: 600;
  letter-spacing: -.025em;
  word-break: break-word;
}
.contact-note {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 26px 0 0;
  color: var(--mute-on-ink);
  font-size: 10.5px;
}

/* ============================= FOOTER ============================= */
.footer {
  background: var(--paper);
  border-top: var(--rule) solid var(--ink);
  padding: clamp(40px, 6vw, 72px) var(--pad) 24px;
}
.footer-top {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-mark { width: 230px; height: auto; }
.footer-slogan {
  margin: 0;
  font-family: var(--disp);
  font-size: clamp(1.6rem, 3.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -.035em;
}
.footer-bottom {
  max-width: var(--maxw);
  margin: clamp(32px, 5vw, 56px) auto 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--mute);
  font-size: 10px;
}

/* =========================== RESPONSIVE =========================== */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-main { border-right: 0; border-bottom: var(--rule) solid var(--ink); }
  .hero-side { min-height: 330px; }
  .sec-head-row, .about-grid { grid-template-columns: 1fr; }
  .about-right {
    border-left: 0;
    border-top: var(--rule) solid var(--ink);
    padding: 28px 0 0;
  }
  .row-a, .row-b, .row-c { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .markband-img { width: min(620px, 62vw); }
}

@media (max-width: 720px) {
  .topbar-tag { display: none; }
  .lockup-mark { width: 120px; }
  .nav { gap: 14px; }
  .nav a { font-size: 10px; }
  .row-a, .row-b, .row-c { grid-template-columns: 1fr; }
  .cell { min-height: 0; }
  .cell-split .cell-body, .cell-horizontal .cell-body { grid-template-columns: 1fr; }
  .markband { grid-template-columns: 1fr; text-align: center; }
  .markband-side:last-child { text-align: center; }
  .markband-img { width: 100%; }
  .hero-strip, .footer-bottom { flex-direction: column; }
  .hero-side-bottom { flex-direction: column; align-items: flex-start; }
  .speclist div { grid-template-columns: 1fr; gap: 4px; }
  .speclist dd { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .led { animation: none; }
  .cta, .nav a, .cell-link, .contact-item { transition: none; }
}