*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* ---- Squarezix brand colours ---- */
  --sqz-max-width: 92.1875em;
  --brand-purple: #621DD0;
  --brand-pink: #AB24F2;
  --brand-gradient: linear-gradient(135deg, #621DD0 0%, #AB24F2 100%);
  --brand-gradient-hover: linear-gradient(135deg, #AB24F2 0%, #621DD0 100%);
  --bg-dark: #070511;
  --header-dark: #0a0a15;
  --header-dark-2: #14142b;
  --text-light: #ffffff;
  --text-muted: #b8b8d1;

  --bg: #000;                            /* hero only: its video sky is pure black */
  /* Page colour for every section after the hero's "inside of Squarezix" dive */
  --page: var(--bg-dark);
  --fg: #f5f5f7;
  --muted: rgba(245, 245, 247, 0.7);
  --accent: var(--brand-pink);
  --purple: var(--brand-purple);         /* header states, focus rings */
  --ink: #111114;             /* header text */
  --header-h: 80px;
}

html { background: var(--bg); }
/* Never let the page scroll sideways (wide loops and transformed sections can poke past
   the screen edges). `clip` (not `hidden`) keeps position: sticky working. */
html, body { overflow-x: clip; }
body {
  font-family: "DM Sans", sans-serif;
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 20;
  height: var(--header-h);
  color: var(--ink);
}
/* Frosted glass. The blur lives on a pseudo-element, not the header itself: a
   backdrop-filter on the header would stop the dropdown panels blurring the page
   behind them, and would squash the fixed mobile sheet into the header bar. */
.site-header::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  /* Bright glass: mostly-white so it never greys out over the dark page, with a faint
     brand tint at the edges so it glows rather than looking flat. */
  background:
    radial-gradient(120% 160% at 0% 0%, rgba(171, 36, 242, .10), transparent 55%), radial-gradient(120% 160% at 100% 100%, rgba(98, 29, 208, .10), transparent 55%),
    linear-gradient(180deg, rgba(255, 255, 255, .92), rgba(250, 246, 255, .84));
  -webkit-backdrop-filter: blur(22px) saturate(200%);
          backdrop-filter: blur(22px) saturate(200%);
  border-bottom: 1px solid rgba(255, 255, 255, .9);
  box-shadow: inset 0 1px 0 #fff, inset 0 -1px 0 rgba(171, 36, 242, .12);
  transition: background .35s ease, box-shadow .35s ease;
}
/* A touch clearer once the page is moving under it (class set in site.js) */
.site-header.is-scrolled::before {
  background:
    radial-gradient(120% 160% at 0% 0%, rgba(171, 36, 242, .10), transparent 55%), radial-gradient(120% 160% at 100% 100%, rgba(98, 29, 208, .10), transparent 55%),
    linear-gradient(180deg, rgba(255, 255, 255, .88), rgba(250, 246, 255, .78));
  box-shadow: inset 0 1px 0 #fff, inset 0 -1px 0 rgba(171, 36, 242, .12), 0 8px 32px rgba(0, 0, 0, .28);
}
/* Mobile sheet open: solid white so the sheet and bar read as one surface */
.site-header.menu-open::before {
  background: #fff;
  -webkit-backdrop-filter: none; backdrop-filter: none;
}
.header-inner {
  height: 100%;
  max-width: 1600px; margin: 0 auto;
  padding: 0 clamp(16px, 5.5vw, 92px);
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
}

/* Brand mark (assets/brand/sz-logo.png) */
.logo {
  justify-self: start;
  display: block; flex: none;
  width: 50px; height: 50px;
  text-decoration: none;
}
.logo img { display: block; width: 100%; height: 100%; }

/* Nav triggers + mega-menu panels live in menu.css */
.main-nav { display: flex; gap: clamp(20px, 2.2vw, 30px); height: 100%; }

/* Five nav items + the Contact button: tighten between tablet and wide desktop */
@media (min-width: 1081px) and (max-width: 1320px) {
  .header-inner { column-gap: 16px; }
  .main-nav { gap: 18px; }
}

.btn-contact {
  justify-self: end;
  display: inline-flex; align-items: center; gap: 6px;
  white-space: nowrap;
  padding: 11px 22px;
  border-radius: 999px;
  background: var(--brand-gradient);
  color: #fff; text-decoration: none;
  font-size: 14px; font-weight: 500;
  /* Grey outer ring + soft inner depth, as in the reference */
  box-shadow:
    0 0 0 3px #cfcfd6,
    0 0 0 4px #b9b9c2,
    inset 0 -2px 6px rgba(0, 0, 0, .3),
    inset 0 1px 0 rgba(255, 255, 255, .25);
  transition: transform .2s ease, filter .2s ease;
}
.btn-contact:hover { transform: translateY(-1px); background: var(--brand-gradient-hover); }

.menu-toggle {
  display: none;
  justify-self: end;
  width: 40px; height: 40px;
  background: none; border: 0; cursor: pointer;
  position: relative;
}
.menu-toggle span {
  position: absolute; left: 10px; right: 10px; height: 2px; background: var(--ink);
  transition: transform .3s ease, top .3s ease;
}
.menu-toggle span:first-child { top: 15px; }
.menu-toggle span:last-child { top: 23px; }
.menu-open .menu-toggle span:first-child { top: 19px; transform: rotate(45deg); }
.menu-open .menu-toggle span:last-child { top: 19px; transform: rotate(-45deg); }

.site-header a:focus-visible, .menu-toggle:focus-visible {
  outline: 2px solid var(--purple); outline-offset: 3px;
}

/* ---------- Hero ---------- */
/* Lives in hero.css */

/* ---------- Services marquee ---------- */
.marquee {
  position: relative; z-index: 1;
  background: #201E3E;             /* deep indigo band (was the brand purple #621dd0) */
  overflow: hidden;
  padding: 14px 0;
}
.marquee-track {
  display: flex; width: max-content;
  animation: marquee var(--marquee-duration, 30s) linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-group { display: flex; list-style: none; }
.marquee-group li {
  display: flex; align-items: center;
  font-family: "Sora", sans-serif;
  font-weight: 700; font-size: clamp(18px, 1.6vw, 24px);
  color: #fff; white-space: nowrap;
}
/* 4-point sparkle between items */
.marquee-group li::after {
  content: "";
  width: 0.95em; height: 0.95em;
  margin: 0 clamp(28px, 3.2vw, 50px);
  background: #fff;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 0C12.6 6.6 17.4 11.4 24 12 17.4 12.6 12.6 17.4 12 24 11.4 17.4 6.6 12.6 0 12 6.6 11.4 11.4 6.6 12 0Z'/%3E%3C/svg%3E") center / contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 0C12.6 6.6 17.4 11.4 24 12 17.4 12.6 12.6 17.4 12 24 11.4 17.4 6.6 12.6 0 12 6.6 11.4 11.4 6.6 12 0Z'/%3E%3C/svg%3E") center / contain no-repeat;
}
@keyframes marquee {
  to { transform: translateX(calc(-1 * var(--group-width, 50%))); }
}
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation-duration: 120s; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  :root { --header-h: 68px; }
  .header-inner { grid-template-columns: 1fr auto auto; gap: 12px; }
  .logo { width: 44px; height: 44px; }
  .menu-toggle { display: block; }
  .btn-contact { padding: 9px 16px; font-size: 13px; }
  /* Full-height sheet; the nav items become accordions (menu.css) */
  .main-nav {
    position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0; height: auto;
    flex-direction: column; gap: 0;
    background: #fff; border-top: 1px solid rgba(0,0,0,.06);
    padding: 8px 16px 32px;
    overflow-y: auto; overscroll-behavior: contain;
    visibility: hidden; opacity: 0; transform: translateY(-8px);
    transition: opacity .25s ease, transform .25s ease, visibility .25s;
  }
  .menu-open .main-nav { visibility: visible; opacity: 1; transform: none; }
}

@media (max-width: 420px) {
  .btn-contact svg { display: none; }
}

/* ---------- Typography roles ----------
   Three families only: Sora for titles, DM Sans for body and UI text, Instrument Serif
   italic for the accent word inside a title. These rules settle the few places where a
   title or a UI label would otherwise inherit the wrong one. */
h1, h2, h3, h4 { font-family: "Sora", sans-serif; }
/* Display text that isn't a heading tag: bento title lines, footer letter tiles */
.b-grow-title p, .szf-tiles span { font-family: "Sora", sans-serif; }