/* =============================================================
   DUMAT — Pre-seed landing site
   Design system: DB-02 (Charcoal / Anodized Steel / Copper)
   Type: Archivo (display) · Source Sans 3 (body + labels) · Noto Kufi Arabic
   Copper is a FUNCTIONAL accent only — reserved for live / active
   signals. It is never used as decoration or as a background field.
   ============================================================= */

/* ---------- Design tokens ---------- */
:root {
  /* Surface */
  --paper:        #F4F2EF;   /* dominant background */
  --paper-raised: #FAF9F7;   /* raised cards on light */
  --white:        #FFFFFF;
  --line:         #E4E1DC;   /* hairline dividers */

  /* Structure (70) */
  --charcoal:     #1E2022;
  --charcoal-800: #242729;
  --charcoal-700: #2A2D30;
  --charcoal-600: #3A3E42;

  /* Secondary (20) */
  --steel:        #7A8690;
  --steel-light:  #9AA3AB;

  /* Ink */
  --ink:          #1E2022;
  --ink-soft:     #4A4E52;
  --ink-faint:    #7A8690;

  /* Functional accent (10) — live/active only */
  --copper:       #D97736;
  --copper-deep:  #B65E24;

  /* Type — corporate/institutional stack (logistics & banking register).
     Archivo = neo-grotesque headings. Source Sans 3 = body + letterspaced labels.
     No monospace anywhere: mono in marketing copy reads "developer tool". */
  --font-display: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --font-body:    'Source Sans 3', 'Helvetica Neue', Arial, sans-serif;
  --font-label:   'Source Sans 3', 'Helvetica Neue', Arial, sans-serif;
  --font-arabic:  'Noto Kufi Arabic', 'Source Sans 3', sans-serif;

  /* Rhythm */
  --container: 1160px;
  --gutter: clamp(20px, 5vw, 40px);
  --section-y: clamp(72px, 11vw, 148px);

  /* Depth — cool-tinted shadow, never gradient glow */
  --shadow-sm: 0 4px 12px rgba(30, 32, 34, 0.05);
  --shadow-md: 0 18px 40px -20px rgba(30, 32, 34, 0.20), 0 4px 12px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 30px 60px -28px rgba(30, 32, 34, 0.35);

  --radius: 4px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--copper); color: #fff; }

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { padding-block: var(--section-y); }
.section--tight { padding-block: clamp(56px, 8vw, 96px); }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.012em;
  line-height: 1.08;
  margin: 0;
  color: var(--ink);
  text-wrap: balance;
}

.display {
  font-size: clamp(2.5rem, 5.9vw, 4.4rem);
  font-weight: 700;
  letter-spacing: -0.018em;
  line-height: 1.06;
}
.h2 { font-size: clamp(1.85rem, 3.5vw, 2.75rem); letter-spacing: -0.015em; }
.h3 { font-size: clamp(1.15rem, 1.6vw, 1.35rem); font-weight: 600; letter-spacing: -0.005em; }

.lede {
  font-size: clamp(1.05rem, 1.55vw, 1.28rem);
  line-height: 1.62;
  color: var(--ink-soft);
  max-width: 46ch;
  text-wrap: pretty;
}
p { text-wrap: pretty; }

/* Mono eyebrow label — the recurring system device */
.eyebrow {
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 22px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--copper);
}
.eyebrow--plain::before { display: none; }

/* ---------- Buttons ---------- */
.btn {
  --btn-fg: var(--paper);
  --btn-bg: var(--charcoal);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.005em;
  padding: 14px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--btn-bg);
  background: var(--btn-bg);
  color: var(--btn-fg);
  cursor: pointer;
  transition: transform 0.4s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn .arrow { transition: transform 0.35s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  border-color: var(--line);
}
.btn--ghost:hover { border-color: var(--charcoal); background: transparent; }

.btn--on-dark { --btn-bg: var(--paper); --btn-fg: var(--charcoal); border-color: var(--paper); }
.btn--ghost.btn--on-dark { --btn-bg: transparent; --btn-fg: var(--paper); border-color: rgba(244,242,239,0.24); }
.btn--ghost.btn--on-dark:hover { border-color: var(--paper); }

/* ---------- Live / status indicator (copper — functional) ---------- */
.status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-label);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.status .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--copper);
  position: relative;
  flex: none;
}
.status .dot::after {
  content: "";
  position: absolute; inset: -5px;
  border-radius: 50%;
  border: 1px solid var(--copper);
  opacity: 0;
  animation: pulse 2.6s var(--ease) infinite;
}
@keyframes pulse {
  0%   { transform: scale(0.6); opacity: 0.7; }
  70%  { transform: scale(1.5); opacity: 0; }
  100% { opacity: 0; }
}

/* =============================================================
   NAVBAR
   ============================================================= */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(244, 242, 239, 0.82);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom-color: var(--line);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 76px;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 34px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav__links a {
  font-size: 0.92rem;
  color: var(--ink-soft);
  position: relative;
  padding: 4px 0;
  transition: color 0.2s var(--ease);
}
.nav__links a::after {
  content: "";
  position: absolute; left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--copper);
  transition: width 0.3s var(--ease);
}
.nav__links a:hover { color: var(--ink); }
.nav__links a:hover::after { width: 100%; }
.nav__cta { display: flex; align-items: center; gap: 18px; }

/* Brand lockup */
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand__mark { width: 30px; height: 30px; }
.brand__word {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.28rem;
  letter-spacing: -0.008em;
  color: var(--ink);
}

/* Mobile nav toggle */
.nav__toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: transparent;
  cursor: pointer;
  padding: 0;
  align-items: center; justify-content: center;
}
.nav__toggle span, .nav__toggle span::before, .nav__toggle span::after {
  content: ""; display: block;
  width: 18px; height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.nav__toggle span { position: relative; }
.nav__toggle span::before { position: absolute; top: -6px; }
.nav__toggle span::after  { position: absolute; top: 6px; }
.nav.is-open .nav__toggle span { background: transparent; }
.nav.is-open .nav__toggle span::before { transform: translateY(6px) rotate(45deg); }
.nav.is-open .nav__toggle span::after  { transform: translateY(-6px) rotate(-45deg); }

/* =============================================================
   HERO
   ============================================================= */
.hero { padding-top: 148px; padding-bottom: clamp(60px, 9vw, 110px); }
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero__eyebrow { margin-bottom: 26px; }
.hero__title { margin-bottom: 26px; }
.hero__title .accent { color: var(--ink); }
.hero__lede { margin-bottom: 34px; max-width: 42ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }
.hero__status {
  padding-top: 24px;
  border-top: 1px solid var(--line);
  max-width: 40ch;
}
.hero__status p { margin: 10px 0 0; font-size: 0.92rem; color: var(--ink-soft); }

/* Hero visual — abstract system map + live app card */
.hero__visual { position: relative; }
.device-frame {
  position: relative;
  aspect-ratio: 4 / 5;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, var(--paper-raised), #F0EDE8);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.device-frame__label {
  position: absolute;
  top: 18px; left: 18px;
  font-family: var(--font-label);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel);
  background: rgba(250,249,247,0.7);
  padding: 5px 9px;
  border: 1px solid var(--line);
  border-radius: 3px;
}
.device-frame__art {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}
/* Abstract system / connectivity map — the product ecosystem, not the device */
.system-map { width: 90%; max-width: 380px; }
.system-map text {
  font-family: var(--font-label);
  font-size: 9px;
  letter-spacing: 0.1em;
  fill: var(--steel);
}
/* Live pulse on the active hub — the single animated accent in the hero */
.system-map .hub-ring {
  transform-box: fill-box;
  transform-origin: center;
  animation: ringpulse 2.8s var(--ease) infinite;
}
@keyframes ringpulse {
  0%   { transform: scale(0.55); opacity: 0.65; }
  70%  { transform: scale(1.7); opacity: 0; }
  100% { opacity: 0; }
}

/* =============================================================
   LOGO / TRUST STRIP
   ============================================================= */
.stage-strip { border-block: 1px solid var(--line); }
.stage-strip__inner {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 20px 40px;
  padding-block: 26px;
}
.stage-strip__lead {
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--copper);
}
.stage-strip__text { font-size: 0.95rem; color: var(--ink-soft); margin: 0; max-width: 62ch; }

/* =============================================================
   SECTION HEADER
   ============================================================= */
.sec-head { max-width: 62ch; margin-bottom: clamp(40px, 5vw, 64px); }
.sec-head .h2 { margin-bottom: 20px; }
.sec-head p { color: var(--ink-soft); font-size: 1.05rem; margin: 0; }

/* =============================================================
   OVERVIEW — split with name meaning
   ============================================================= */
.overview__grid {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: start;
}
.overview__body p { color: var(--ink-soft); font-size: 1.08rem; margin: 0 0 20px; }
.overview__body p strong { color: var(--ink); font-weight: 600; }

.name-card {
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: var(--radius);
  padding: 34px 32px;
  box-shadow: var(--shadow-sm);
}
.name-card__ar {
  font-family: var(--font-arabic);
  font-size: 3.4rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
  direction: rtl;
}
.name-card__label {
  font-family: var(--font-label);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel);
  margin: 8px 0 20px;
}
.name-card__def { font-size: 0.98rem; color: var(--ink-soft); margin: 0; }
.name-card__def b { color: var(--copper); font-weight: 600; }

/* =============================================================
   PRODUCT — how it works
   ============================================================= */
.section--dark {
  background: var(--charcoal);
  color: var(--paper);
  position: relative;
  overflow: hidden;
}
/* Abstract connective node motif, top-right of dark sections */
.dark-deco {
  position: absolute;
  top: -40px; right: -40px;
  width: 340px; height: 340px;
  color: var(--charcoal-600);
  pointer-events: none;
  opacity: 0.9;
  z-index: 0;
}
.dark-deco .live-node { fill: var(--copper); }
.section--dark > .container { position: relative; z-index: 1; }
@media (max-width: 720px) { .dark-deco { opacity: 0.5; } }
.section--dark .h2,
.section--dark h3 { color: #fff; }
.section--dark .sec-head p { color: var(--steel-light); }
.section--dark .eyebrow { color: var(--steel-light); }

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--charcoal-600);
  border: 1px solid var(--charcoal-600);
  border-radius: var(--radius);
  overflow: hidden;
}
.step {
  background: var(--charcoal);
  padding: 32px 26px 34px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 250px;
}
.step__num {
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--copper);
}
.step__icon { width: 34px; height: 34px; color: var(--steel-light); }
.step__title { color: #fff; font-family: var(--font-display); font-weight: 600; font-size: 1.12rem; letter-spacing: -0.01em; }
.step__desc { color: var(--steel-light); font-size: 0.92rem; line-height: 1.6; margin: 0; }
.step__desc .live { color: var(--copper); }

.spec-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 28px;
}
.spec {
  border-top: 1px solid var(--charcoal-600);
  padding-top: 18px;
}
.spec__value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 2.4vw, 2.1rem);
  color: #fff;
  letter-spacing: -0.008em;
}
.spec__label { font-family: var(--font-label); font-size: 0.68rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--steel-light); margin-top: 6px; }

/* =============================================================
   PROBLEM
   ============================================================= */
.problem__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: start;
}
.gap-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.gap-item {
  background: var(--white);
  padding: 24px 26px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  align-items: baseline;
}
.gap-item__k { font-family: var(--font-label); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--steel); white-space: nowrap; }
.gap-item__v { font-size: 0.98rem; color: var(--ink); margin: 0; }
.gap-item__v strong { font-weight: 600; }

/* =============================================================
   APPROACH — differentiators
   ============================================================= */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.pillar {
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 30px 34px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.pillar:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.pillar__icon {
  width: 40px; height: 40px;
  color: var(--charcoal);
  margin-bottom: 22px;
}
.pillar__title { font-size: 1.2rem; font-weight: 600; margin-bottom: 12px; }
.pillar__desc { color: var(--ink-soft); font-size: 0.96rem; margin: 0; }

/* Moat highlight band */
.moat {
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: clamp(24px, 4vw, 56px);
  padding: clamp(28px, 4vw, 40px);
  box-shadow: var(--shadow-sm);
}
.moat__figure {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3rem, 7vw, 5rem);
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--charcoal);
}
.moat__figure .of { color: var(--steel); font-weight: 500; font-size: 0.4em; }
.moat__text { font-size: 1.05rem; color: var(--ink-soft); margin: 0; max-width: 58ch; }
.moat__text strong { color: var(--ink); font-weight: 600; }

/* =============================================================
   FOUNDER / TEAM
   ============================================================= */
.people {
  display: grid;
  grid-template-columns: 1fr;
  max-width: 800px;
}
.founder-card {
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: var(--radius);
  padding: clamp(28px, 3vw, 40px);
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(24px, 3vw, 36px);
  align-items: start;
}
.avatar {
  width: 148px; height: 148px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--charcoal);
  position: relative;
  overflow: hidden;
  flex: none;
}
.avatar img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 50% 22%; /* keep the face centred as the frame crops */
  display: block;
}
.founder-card__name { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; letter-spacing: -0.008em; }
.founder-card__role { font-family: var(--font-label); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.11em; text-transform: uppercase; color: var(--copper); margin: 8px 0 18px; }
.founder-card__bio { color: var(--ink-soft); font-size: 0.98rem; margin: 0 0 8px; }

/* =============================================================
   CONTACT
   ============================================================= */
.contact { position: relative; }
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.contact__title { margin-bottom: 22px; }
.contact__lede { color: var(--steel-light); font-size: 1.1rem; margin: 0 0 32px; max-width: 40ch; }
.contact__actions { display: flex; flex-wrap: wrap; gap: 14px; }

.contact-list { display: grid; gap: 1px; background: var(--charcoal-600); border: 1px solid var(--charcoal-600); border-radius: var(--radius); overflow: hidden; }
.contact-list a, .contact-list div {
  background: var(--charcoal);
  padding: 22px 26px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  transition: background 0.25s var(--ease);
}
.contact-list a:hover { background: var(--charcoal-700); }
.contact-list .k { font-family: var(--font-label); font-size: 0.68rem; font-weight: 600; letter-spacing: 0.11em; text-transform: uppercase; color: var(--steel-light); }
.contact-list .v { color: #fff; font-size: 1rem; }
.contact-list .v small { display: block; font-size: 0.7rem; color: var(--steel); font-family: var(--font-label); margin-top: 4px; letter-spacing: 0.04em; }

/* =============================================================
   FOOTER
   ============================================================= */
.footer { background: var(--paper); border-top: 1px solid var(--line); padding-block: clamp(48px, 6vw, 72px); }
.footer__top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line);
}
.footer__lockup { display: flex; align-items: center; gap: 20px; margin-bottom: 22px; }
.footer__divider { width: 1px; height: 34px; background: var(--line); }
.footer__ar { font-family: var(--font-arabic); font-size: 1.7rem; font-weight: 600; color: var(--ink); direction: rtl; line-height: 1.5; }
.footer__blurb { color: var(--ink-soft); font-size: 0.92rem; max-width: 42ch; margin: 0; }
.footer__col h4 { font-family: var(--font-label); font-size: 0.68rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--steel); margin-bottom: 18px; }
.footer__col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.footer__col a, .footer__col li { font-size: 0.92rem; color: var(--ink-soft); transition: color 0.2s var(--ease); }
.footer__col a:hover { color: var(--ink); }
.footer__bottom {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px;
  padding-top: 28px;
}
.footer__meta { font-family: var(--font-label); font-size: 0.7rem; letter-spacing: 0.08em; color: var(--steel); }

/* =============================================================
   SCROLL REVEAL
   ============================================================= */
/* Progressive enhancement: content is visible by default; only hidden
   once JS confirms it can reveal it again (.js on <html>). */
.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }

/* =============================================================
   RESPONSIVE
   ============================================================= */
@media (max-width: 1000px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { max-width: 460px; margin-inline: auto; width: 100%; }
  .overview__grid,
  .problem__grid,
  .people,
  .contact__grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .spec-row { grid-template-columns: repeat(2, 1fr); gap: 24px 20px; }
  .pillars { grid-template-columns: 1fr; }
  .moat { grid-template-columns: 1fr; text-align: left; }
  .footer__top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .nav__links, .nav__cta .btn { display: none; }
  .nav__toggle { display: inline-flex; }
  .nav.is-open .nav__links {
    display: flex;
    position: absolute;
    top: 76px; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 16px var(--gutter) 28px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
  }
  .nav.is-open .nav__links a { padding: 12px 0; width: 100%; font-size: 1.05rem; }
  .steps { grid-template-columns: 1fr; }
  .founder-card { grid-template-columns: 1fr; }
  .avatar { width: 120px; height: 120px; }
  .footer__top { grid-template-columns: 1fr; gap: 32px; }
  .contact-list a, .contact-list div { flex-direction: column; align-items: flex-start; gap: 6px; }
}

@media (max-width: 420px) {
  .spec-row { grid-template-columns: 1fr; }
}