/* =========================================================
   Quantum Advertising — site styles
   ========================================================= */

:root {
  --bg: #07070c;
  --bg-2: #0d0d16;
  --bg-3: #14141f;
  --paper: #f1efe9;
  --ink: #0b0b12;
  --ink-2: #4a4a58;
  --text: #f3f3f7;
  --muted: #9c9cb2;
  --line: rgba(255, 255, 255, .09);
  --line-2: rgba(255, 255, 255, .16);
  --glass: rgba(255, 255, 255, .04);

  --c1: #3de4ff;
  --c2: #4f7cff;
  --c3: #a64dff;
  --c4: #ff4fb4;
  --grad: linear-gradient(100deg, var(--c1) 0%, var(--c2) 32%, var(--c3) 64%, var(--c4) 100%);

  --f-display: "Unbounded", "Manrope", system-ui, sans-serif;
  --f-body: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --r-sm: 12px;
  --r: 20px;
  --r-lg: 32px;
  --gutter: clamp(16px, 4vw, 40px);
  --max: 1280px;
  --header-h: 76px;
  --ease: cubic-bezier(.2, .7, .1, 1);

  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.6 var(--f-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
h1, h2, h3 { margin: 0; font-weight: 600; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
::selection { background: var(--c3); color: #fff; }
:focus-visible { outline: 2px solid var(--c1); outline-offset: 3px; border-radius: 6px; }

.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: fixed; left: 16px; top: 16px; transform: translateY(-200%); z-index: 100; background: #fff; color: #000; padding: 10px 16px; border-radius: 10px; }
.skip:focus { transform: none; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding-inline: var(--gutter); }
.mono { font-family: var(--f-mono); font-size: .78rem; letter-spacing: .02em; text-transform: uppercase; }
.muted { color: var(--muted); }
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  background-size: 200% 100%;
  animation: gradShift 8s ease-in-out infinite alternate;
}
@keyframes gradShift { to { background-position: 100% 0; } }

.link { background: linear-gradient(currentColor, currentColor) 0 100% / 100% 1px no-repeat; transition: background-size .35s var(--ease); }
.link:hover { background-size: 0 1px; background-position: 100% 100%; }

/* ---------- Buttons ---------- */
.btn {
  --h: 48px;
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: var(--h); padding: 0 24px;
  border-radius: 999px;
  font-weight: 600; font-size: .95rem; letter-spacing: .01em;
  white-space: nowrap;
  transition: transform .3s var(--ease), background .3s, color .3s, box-shadow .3s;
  isolation: isolate;
}
.btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform .3s var(--ease); }
.btn:hover svg { transform: translateX(4px); }
.btn--sm { --h: 42px; padding: 0 18px; font-size: .88rem; }
.btn--lg { --h: 58px; padding: 0 30px; font-size: 1rem; }
.btn--block { width: 100%; }
.btn--primary { background: var(--text); color: var(--ink); }
.btn--primary::before {
  content: ""; position: absolute; inset: -2px; z-index: -1; border-radius: inherit;
  background: var(--grad); opacity: 0; filter: blur(14px); transition: opacity .35s;
}
.btn--primary:hover::before { opacity: .85; }
.btn--ghost { border: 1px solid var(--line-2); color: var(--text); }
.btn--ghost:hover { background: var(--glass); border-color: var(--text); }
.btn span, .btn svg { pointer-events: none; }

/* ---------- Eyebrow ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--f-mono); font-size: .76rem; text-transform: uppercase; letter-spacing: .14em;
  color: var(--muted); margin-bottom: 20px;
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--grad); }
.eyebrow--dark { color: var(--ink-2); }
.hero .eyebrow::before { display: none; }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--c1); box-shadow: 0 0 0 0 rgba(61, 228, 255, .6); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(61, 228, 255, 0); } 100% { box-shadow: 0 0 0 0 rgba(61, 228, 255, 0); } }

/* ---------- Header ---------- */
.header {
  position: fixed; inset: 0 0 auto; z-index: 50;
  padding-top: env(safe-area-inset-top, 0px);
  transition: transform .45s var(--ease), background .3s, border-color .3s;
  border-bottom: 1px solid transparent;
}
.header.is-scrolled { background: rgba(7, 7, 12, .72); backdrop-filter: blur(16px) saturate(1.4); -webkit-backdrop-filter: blur(16px) saturate(1.4); border-color: var(--line); }
.header.is-hidden { transform: translateY(-100%); }
.header__inner { height: var(--header-h); display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.logo { display: inline-flex; align-items: center; gap: 10px; }
.logo__mark { width: 36px; height: 36px; transition: transform .6s var(--ease); }
.logo:hover .logo__mark { transform: rotate(-180deg); }
.logo__word { font-family: var(--f-display); font-weight: 600; font-size: 1.2rem; letter-spacing: -.01em; line-height: 1; display: flex; flex-direction: column; }
.logo__word small { font-family: var(--f-body); font-size: .56rem; font-weight: 500; letter-spacing: .34em; text-transform: uppercase; color: var(--muted); margin-top: 4px; }

.nav { display: flex; gap: 4px; padding: 5px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255, 255, 255, .02); }
.nav a { padding: 8px 16px; border-radius: 999px; font-size: .9rem; color: var(--muted); transition: color .25s, background .25s; }
.nav a:hover, .nav a.is-active { color: var(--text); background: rgba(255, 255, 255, .07); }

.header__cta { display: flex; align-items: center; gap: 12px; }
.burger { display: none; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line-2); position: relative; }
.burger span { position: absolute; left: 13px; right: 13px; height: 1.5px; background: var(--text); transition: transform .35s var(--ease), top .35s var(--ease); }
.burger span:first-child { top: 17px; }
.burger span:last-child { top: 25px; }
.burger[aria-expanded="true"] span:first-child { top: 21px; transform: rotate(45deg); }
.burger[aria-expanded="true"] span:last-child { top: 21px; transform: rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: 0; z-index: 40;
  background: rgba(7, 7, 12, .96); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  padding: calc(var(--header-h) + 32px + env(safe-area-inset-top, 0px)) var(--gutter) calc(32px + env(safe-area-inset-bottom, 0px));
  display: flex; flex-direction: column; justify-content: space-between;
  animation: fadeIn .3s var(--ease);
}
.mobile-menu nav { display: flex; flex-direction: column; }
.mobile-menu nav a { font-family: var(--f-display); font-size: clamp(1.8rem, 8vw, 2.6rem); padding: 10px 0; border-bottom: 1px solid var(--line); }
@keyframes fadeIn { from { opacity: 0; } }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: flex; flex-direction: column; padding: calc(var(--header-h) + 40px) 0 56px; overflow: hidden; }
.hero__field { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero__glow {
  position: absolute; inset: auto -20% -40% -20%; height: 70%;
  background: radial-gradient(50% 50% at 50% 50%, rgba(166, 77, 255, .22), transparent 70%);
  pointer-events: none;
}
.hero::after { content: ""; position: absolute; inset: auto 0 0; height: 160px; background: linear-gradient(transparent, var(--bg)); pointer-events: none; }
/* plain flex row pushed down with margin-top:auto — grid + align-items:end overflowed in Safari */
.hero__inner { position: relative; z-index: 2; margin-top: auto; display: flex; align-items: flex-end; gap: 40px; flex-shrink: 0; }
.hero__copy { flex: 0 1 auto; padding-bottom: 12px; }
.hero__title {
  font-family: var(--f-display); font-weight: 600;
  font-size: clamp(2.5rem, 6.4vw, 6.4rem); line-height: .98; letter-spacing: -.04em;
  margin-bottom: 28px;
}
.line { display: block; overflow: hidden; padding-bottom: .06em; white-space: nowrap; }
.line__in { display: inline-block; transform: translateY(105%); animation: lineUp 1.1s var(--ease) forwards; }
.line:nth-child(2) .line__in { animation-delay: .12s; }
@keyframes lineUp { to { transform: none; } }
.hero__lead { max-width: 560px; font-size: clamp(1.02rem, 1.4vw, 1.18rem); color: #c9c9d8; margin-bottom: 36px; }
.hero__lead em { font-style: normal; color: var(--text); border-bottom: 1px dashed var(--c3); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }

.hero__cards { flex: 1 1 0%; min-width: 0; position: relative; height: 420px; }
.qcard {
  position: absolute; padding: 18px 20px; border-radius: var(--r);
  background: linear-gradient(160deg, rgba(255, 255, 255, .09), rgba(255, 255, 255, .02));
  border: 1px solid var(--line-2);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .6);
}
.qcard .mono { color: var(--muted); font-size: .7rem; }
.qcard__head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.qcard__value { font-family: var(--f-display); font-size: 2.6rem; font-weight: 600; letter-spacing: -.03em; line-height: 1.1; margin: 6px 0 8px; }
.qcard__value small { font-size: .5em; color: var(--muted); margin-left: 2px; }
.qcard__value--sm { font-size: 2rem; }
.qcard--roas { width: min(320px, 90%); right: 4%; top: 10px; }
.qcard--cpa { width: 190px; left: 0; top: 200px; }
.qcard--channels { width: 260px; right: 0; bottom: 10px; }
.spark { width: 100%; height: 56px; }
.chip { font-family: var(--f-mono); font-size: .66rem; padding: 4px 8px; border-radius: 999px; }
.chip--up { background: rgba(61, 228, 255, .12); color: var(--c1); }
.bar { height: 6px; border-radius: 6px; background: rgba(255, 255, 255, .08); overflow: hidden; }
.bar i { display: block; height: 100%; width: var(--w); background: var(--grad); border-radius: inherit; }
.dots { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.dots span { display: inline-flex; align-items: center; gap: 6px; font-size: .78rem; padding: 5px 10px; border-radius: 999px; background: rgba(255, 255, 255, .06); }
.dots span::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--c); box-shadow: 0 0 8px var(--c); }

.float-a { animation: float 7s ease-in-out infinite; }
.float-b { animation: float 8s ease-in-out -2s infinite; }
.float-c { animation: float 9s ease-in-out -4s infinite; }
@keyframes float { 50% { transform: translateY(-14px); } }

.hero > .container { flex-shrink: 0; }
.stats {
  position: relative; z-index: 2; margin: 56px 0 0;
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
}
.stat { padding: 24px 24px 0 0; }
.stat + .stat { padding-left: 24px; border-left: 1px solid var(--line); }
.stat dt { font-size: .85rem; color: var(--muted); order: 2; }
.stat dd { margin: 0 0 4px; font-family: var(--f-display); font-size: clamp(1.8rem, 3.4vw, 2.8rem); font-weight: 500; letter-spacing: -.03em; }
.stat { display: flex; flex-direction: column-reverse; justify-content: flex-end; }

/* ---------- Marquee ---------- */
.marquee { border-block: 1px solid var(--line); padding: 22px 0; overflow: hidden; background: var(--bg-2); }
.marquee__track { display: flex; align-items: center; gap: 36px; width: max-content; animation: marquee 38s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee span { font-family: var(--f-display); font-size: clamp(1.1rem, 2.2vw, 1.6rem); font-weight: 500; letter-spacing: -.01em; white-space: nowrap; color: #d9d9e6; }
.marquee i { width: 14px; height: 14px; border-radius: 50%; border: 3px solid transparent; background: var(--grad) border-box; -webkit-mask: linear-gradient(#000 0 0) padding-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; flex: none; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
.section { position: relative; padding: clamp(72px, 9vw, 128px) 0; }
.section--tight { padding-block: clamp(56px, 7vw, 96px); }
.section__head { margin-bottom: clamp(40px, 6vw, 72px); max-width: 780px; }
.section__head--row { max-width: none; display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; flex-wrap: wrap; }
.section__head--row .section__lead { max-width: 440px; }
.h2 { font-family: var(--f-display); font-weight: 600; font-size: clamp(2.2rem, 5.4vw, 4.4rem); line-height: 1.02; letter-spacing: -.035em; }
.h2--sm { font-size: clamp(1.9rem, 3.8vw, 3rem); margin-bottom: 14px; }
.section__lead { margin-top: 22px; font-size: 1.08rem; color: var(--muted); max-width: 620px; }

/* paper section */
.section--paper { background: var(--paper); color: var(--ink); border-radius: var(--r-lg) var(--r-lg) 0 0; }
.section--paper + .section { margin-top: calc(-1 * var(--r-lg)); border-radius: var(--r-lg) var(--r-lg) 0 0; background: var(--bg); }
.section--paper .section__lead { color: var(--ink-2); }
.section--paper { padding-bottom: calc(clamp(72px, 9vw, 128px) + var(--r-lg)); }

/* ---------- Bento ---------- */
.bento { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: minmax(220px, auto); gap: 16px; }
.tile {
  position: relative; padding: 28px; border-radius: var(--r);
  background: #fff; border: 1px solid rgba(11, 11, 18, .06);
  display: flex; flex-direction: column; gap: 12px;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
.tile:hover { transform: translateY(-4px); box-shadow: 0 30px 50px -30px rgba(11, 11, 18, .3); }
.tile h3 { font-family: var(--f-display); font-size: 1.3rem; line-height: 1.15; letter-spacing: -.02em; }
.tile p { color: var(--ink-2); font-size: .98rem; }
.tile__num { color: var(--ink-2); margin-bottom: auto; padding-bottom: 20px; }
.tile--xl { grid-column: span 2; grid-row: span 2; background: var(--ink); color: var(--text); border: 0; overflow: hidden; }
.tile--xl p, .tile--xl .tile__num { color: var(--muted); }
.tile--xl .tile__num { margin-bottom: 0; }
.tile--xl h3 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); max-width: 440px; }
.tile--wide { grid-column: span 2; }
.tile--grad { background: var(--grad); color: var(--ink); border: 0; }
.tile--grad p, .tile--grad .tile__num { color: rgba(11, 11, 18, .75); }
.tile__viz { margin-top: auto; padding-top: 28px; }
.funnel { display: flex; flex-direction: column; gap: 8px; }
.funnel div { width: var(--w); height: 44px; border-radius: 12px; background: rgba(255, 255, 255, .06); display: flex; align-items: center; padding: 0 16px; transform-origin: left; transform: scaleX(0); transition: transform 1.2s var(--ease); }
.funnel div:nth-child(2) { transition-delay: .1s; }
.funnel div:nth-child(3) { transition-delay: .2s; }
.funnel div:nth-child(4) { transition-delay: .3s; }
.funnel span { font-family: var(--f-mono); font-size: .74rem; text-transform: uppercase; color: var(--muted); white-space: nowrap; }
.funnel .is-hot { background: var(--grad); }
.funnel .is-hot span { color: var(--ink); font-weight: 500; }
.tile.is-in .funnel div { transform: none; }
.checks { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.checks li { font-size: .85rem; padding: 6px 12px 6px 30px; border-radius: 999px; background: var(--paper); position: relative; }
.checks li::before { content: ""; position: absolute; left: 12px; top: 50%; width: 9px; height: 5px; border-left: 2px solid var(--ink); border-bottom: 2px solid var(--ink); transform: translateY(-70%) rotate(-45deg); }

/* ---------- Services ---------- */
.services { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: start; }
.svc { border-top: 1px solid var(--line); }
.svc:last-child { border-bottom: 1px solid var(--line); }
.svc__btn { width: 100%; display: flex; align-items: center; gap: 24px; padding: 28px 0; text-align: left; }
.svc__n { color: var(--muted); min-width: 28px; transition: color .3s; }
.svc__t { flex: 1; font-family: var(--f-display); font-size: clamp(1.3rem, 2.6vw, 2.1rem); font-weight: 500; letter-spacing: -.025em; line-height: 1.1; color: #8a8aa0; transition: color .35s, transform .45s var(--ease); }
.svc:hover .svc__t, .svc.is-active .svc__t { color: var(--text); }
.svc:hover .svc__t { transform: translateX(8px); }
.svc.is-active .svc__n { color: var(--c1); }
.svc__plus { position: relative; width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--line-2); flex: none; transition: transform .45s var(--ease), background .3s; }
.svc__plus::before, .svc__plus::after { content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 1.5px; background: currentColor; transform: translate(-50%, -50%); }
.svc__plus::after { transform: translate(-50%, -50%) rotate(90deg); }
.svc.is-active .svc__plus { transform: rotate(45deg); background: var(--text); color: var(--ink); border-color: var(--text); }
.svc__panel { display: grid; grid-template-rows: 0fr; padding-left: 52px; transition: grid-template-rows .5s var(--ease); }
.svc.is-active .svc__panel { grid-template-rows: 1fr; }
.svc__inner { overflow: hidden; min-height: 0; }
.svc__inner p { color: var(--muted); max-width: 560px; }
.svc__inner .tags { padding-bottom: 28px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tags li { font-family: var(--f-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .04em; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line-2); color: #cfcfe0; }

.svc-stage { position: sticky; top: calc(var(--header-h) + 40px); aspect-ratio: 1; border-radius: var(--r-lg); background: var(--bg-2); border: 1px solid var(--line); overflow: hidden; display: grid; place-items: center; }
.svc-stage__orb {
  position: absolute; width: 62%; aspect-ratio: 1; border-radius: 50%;
  background: conic-gradient(from var(--a, 0deg), var(--c1), var(--c2), var(--c3), var(--c4), var(--c1));
  filter: blur(40px); opacity: .55;
  transition: --a 1s var(--ease), transform 1s var(--ease);
  animation: spin 14s linear infinite;
}
@property --a { syntax: "<angle>"; inherits: false; initial-value: 0deg; }
@keyframes spin { to { transform: rotate(360deg); } }
.svc-stage__ring { position: absolute; width: 74%; aspect-ratio: 1; border-radius: 50%; border: 1px dashed rgba(255, 255, 255, .18); animation: spin 40s linear infinite; }
.svc-stage__ring--2 { width: 46%; border-style: solid; border-color: rgba(255, 255, 255, .1); animation-direction: reverse; animation-duration: 26s; }
.svc-stage__ring::after { content: ""; position: absolute; top: -5px; left: 50%; width: 10px; height: 10px; border-radius: 50%; background: var(--c1); box-shadow: 0 0 14px var(--c1); }
.svc-stage__ring--2::after { background: var(--c4); box-shadow: 0 0 14px var(--c4); }
.svc-stage__big { position: relative; font-family: var(--f-display); font-size: clamp(5rem, 11vw, 9rem); font-weight: 600; letter-spacing: -.06em; line-height: 1; text-transform: none; color: var(--text); mix-blend-mode: overlay; }
.svc-stage__label { position: absolute; bottom: 28px; left: 28px; font-family: var(--f-mono); font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.svc-stage__big.swap, .svc-stage__label.swap { animation: swap .5s var(--ease); }
@keyframes swap { from { opacity: 0; transform: translateY(20px); } }

/* ---------- Steps ---------- */
.steps { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding-top: 44px; }
.steps__rail { position: absolute; top: 12px; left: 0; right: 0; height: 2px; background: var(--line); border-radius: 2px; overflow: hidden; }
.steps__rail i { display: block; height: 100%; width: 100%; background: var(--grad); transform-origin: left; transform: scaleX(var(--p, 0)); }
.step { position: relative; padding: 28px 24px 32px; border-radius: var(--r); background: var(--bg-2); border: 1px solid var(--line); transition: border-color .4s, transform .5s var(--ease); }
.step::before { content: ""; position: absolute; top: -39px; left: 24px; width: 12px; height: 12px; border-radius: 50%; background: var(--bg); border: 2px solid var(--line-2); transition: background .4s, border-color .4s, box-shadow .4s; }
.step.is-lit::before { background: var(--c1); border-color: var(--c1); box-shadow: 0 0 16px var(--c1); }
.step.is-lit { border-color: var(--line-2); }
.step:hover { transform: translateY(-4px); }
.step__time { color: var(--c1); }
.step h3 { font-family: var(--f-display); font-size: 1.2rem; letter-spacing: -.02em; margin: 14px 0 10px; }
.step p { color: var(--muted); font-size: .96rem; }

/* ---------- Calculator ---------- */
.calc {
  display: grid; grid-template-columns: 1fr 1.25fr; gap: clamp(28px, 5vw, 64px);
  padding: clamp(24px, 4vw, 56px); border-radius: var(--r-lg);
  background: radial-gradient(120% 90% at 100% 0%, rgba(79, 124, 255, .16), transparent 60%), var(--bg-2);
  border: 1px solid var(--line);
}
.calc__controls .muted { margin-bottom: 32px; }
.field-range { margin-bottom: 28px; }
.field-range__top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 14px; gap: 12px; }
.field-range label { color: var(--muted); font-size: .95rem; }
.field-range output { font-family: var(--f-display); font-size: 1.4rem; font-weight: 500; letter-spacing: -.02em; }
input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 28px; background: transparent; cursor: pointer; --p: 50%; }
input[type="range"]::-webkit-slider-runnable-track { height: 4px; border-radius: 4px; background: linear-gradient(90deg, var(--c1), var(--c3) var(--p), rgba(255, 255, 255, .1) var(--p)); }
input[type="range"]::-moz-range-track { height: 4px; border-radius: 4px; background: rgba(255, 255, 255, .1); }
input[type="range"]::-moz-range-progress { height: 4px; border-radius: 4px; background: linear-gradient(90deg, var(--c1), var(--c3)); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 24px; height: 24px; margin-top: -10px; border-radius: 50%; background: var(--text); border: 5px solid var(--c3); box-shadow: 0 0 0 6px rgba(166, 77, 255, .18); transition: transform .2s; }
input[type="range"]::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: var(--text); border: 5px solid var(--c3); }
input[type="range"]:active::-webkit-slider-thumb { transform: scale(1.15); }

.seg { border: 0; padding: 0; margin: 0; }
.seg legend { color: var(--muted); font-size: .95rem; margin-bottom: 14px; padding: 0; }
.seg__opts { display: flex; flex-wrap: wrap; gap: 6px; padding: 5px; border-radius: 999px; background: rgba(255, 255, 255, .04); border: 1px solid var(--line); width: fit-content; max-width: 100%; }
.seg label { position: relative; cursor: pointer; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span { display: block; padding: 9px 16px; border-radius: 999px; font-size: .9rem; color: var(--muted); transition: background .3s, color .3s; }
.seg input:checked + span { background: var(--text); color: var(--ink); }
.seg input:focus-visible + span { outline: 2px solid var(--c1); outline-offset: 2px; }

.calc__out { display: flex; flex-direction: column; gap: 24px; }
.calc__kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.calc__kpis > div { padding: 18px; border-radius: var(--r-sm); background: rgba(255, 255, 255, .03); border: 1px solid var(--line); min-width: 0; }
.calc__kpis .mono { font-size: .66rem; display: block; margin-bottom: 8px; }
.calc__kpis strong { font-family: var(--f-display); font-size: clamp(1.05rem, 1.7vw, 1.5rem); font-weight: 600; letter-spacing: -.03em; display: block; white-space: nowrap; }

.chart { margin: 0; }
.chart__cap { font-size: .88rem; margin-bottom: 12px; }
.chart__plot { position: relative; height: 240px; }
.chart__plot svg { width: 100%; height: 100%; overflow: visible; }
.chart .grid-line { stroke: rgba(255, 255, 255, .07); stroke-width: 1; }
.chart .axis-lbl { fill: var(--muted); font: 500 11px var(--f-mono); }
.chart .base-line { stroke: var(--muted); stroke-width: 1.5; stroke-dasharray: 4 5; pointer-events: none; }
.chart .grid-line, .chart .axis-lbl { pointer-events: none; }
.chart .bar-rect { transition: opacity .2s; }
.chart .bar-hit { fill: transparent; cursor: pointer; }
.chart svg:hover .bar-rect { opacity: .55; }
.chart svg .bar-g:hover .bar-rect { opacity: 1; }
.chart__tip { position: absolute; pointer-events: none; transform: translate(-50%, calc(-100% - 10px)); background: var(--text); color: var(--ink); padding: 8px 12px; border-radius: 10px; font-size: .82rem; line-height: 1.35; white-space: nowrap; box-shadow: 0 10px 30px rgba(0, 0, 0, .4); }
.chart__tip b { font-family: var(--f-display); font-weight: 600; }

/* ---------- Cases ---------- */
.filters { display: flex; gap: 6px; flex-wrap: wrap; }
.filter { padding: 10px 18px; border-radius: 999px; border: 1px solid var(--line-2); font-size: .9rem; color: var(--muted); transition: all .3s; }
.filter:hover { color: var(--text); border-color: var(--text); }
.filter.is-active { background: var(--text); color: var(--ink); border-color: var(--text); }
.cases { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.case {
  --accent: var(--c1);
  position: relative; overflow: hidden;
  padding: clamp(24px, 3vw, 36px); border-radius: var(--r-lg);
  background: var(--bg-2); border: 1px solid var(--line);
  min-height: 360px; display: flex; flex-direction: column; gap: 24px;
  transition: transform .6s var(--ease), border-color .4s, opacity .4s;
}
.case::before {
  content: ""; position: absolute; width: 380px; height: 380px; border-radius: 50%;
  right: -140px; top: -160px; background: radial-gradient(circle, var(--accent), transparent 65%);
  opacity: .22; transition: opacity .5s, transform .8s var(--ease);
}
.case:hover { transform: translateY(-6px); border-color: var(--line-2); }
.case:hover::before { opacity: .45; transform: scale(1.2); }
.case--b { --accent: var(--c4); }
.case--c { --accent: var(--c3); }
.case--d { --accent: var(--c2); }
.case > * { position: relative; }
.case__top { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; color: var(--muted); }
.case h3 { font-family: var(--f-display); font-size: clamp(1.3rem, 2.2vw, 1.75rem); line-height: 1.15; letter-spacing: -.025em; max-width: 520px; }
.case__metrics { margin-top: auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; border-top: 1px solid var(--line); padding-top: 22px; }
.case__metrics strong { display: block; font-family: var(--f-display); font-size: clamp(1.4rem, 2.8vw, 2.3rem); font-weight: 600; letter-spacing: -.04em; line-height: 1.1; }
.case__metrics span { font-size: .85rem; color: var(--muted); }
.case.is-hidden { display: none; }
.note { margin-top: 20px; color: var(--muted); font-size: .7rem; }

/* ---------- FAQ ---------- */
.faq { display: grid; grid-template-columns: 1fr 1.6fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
.faq__head { position: sticky; top: calc(var(--header-h) + 32px); }
.faq__head .muted { margin-top: 20px; }
.qa { border-top: 1px solid var(--line); }
.qa:last-child { border-bottom: 1px solid var(--line); }
.qa summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 26px 0; font-family: var(--f-display); font-weight: 500; font-size: clamp(1.02rem, 1.6vw, 1.25rem); letter-spacing: -.015em; }
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after { content: ""; flex: none; width: 12px; height: 12px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg) translateY(-4px); transition: transform .35s var(--ease); }
.qa[open] summary::after { transform: rotate(-135deg) translateY(-2px); }
.qa p { color: var(--muted); padding: 0 40px 26px 0; max-width: 680px; }

/* ---------- Contact / Brief ---------- */
.contact { overflow: hidden; }
.contact__glow { position: absolute; width: 900px; height: 900px; left: -300px; bottom: -500px; background: radial-gradient(circle, rgba(61, 228, 255, .18), transparent 60%); pointer-events: none; }
.contact__inner { position: relative; display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(32px, 6vw, 88px); align-items: start; }
.perks { margin-top: 32px; display: grid; gap: 14px; }
.perks li { display: flex; gap: 14px; align-items: center; }
.perks li::before { content: ""; flex: none; width: 22px; height: 22px; border-radius: 50%; background: var(--grad); -webkit-mask: radial-gradient(circle, transparent 5px, #000 5.5px); mask: radial-gradient(circle, transparent 5px, #000 5.5px); }

.brief { position: relative; padding: clamp(24px, 4vw, 44px); border-radius: var(--r-lg); background: rgba(255, 255, 255, .035); border: 1px solid var(--line-2); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); min-height: 460px; display: flex; flex-direction: column; }
.brief__progress { height: 3px; border-radius: 3px; background: rgba(255, 255, 255, .08); overflow: hidden; margin-bottom: 18px; }
.brief__progress i { display: block; height: 100%; width: 33.3%; background: var(--grad); transition: width .5s var(--ease); }
.brief__stepnum { color: var(--muted); margin-bottom: 18px; }
.brief__step { border: 0; padding: 0; margin: 0; display: none; min-width: 0; }
.brief__step.is-active { display: block; animation: stepIn .5s var(--ease); }
@keyframes stepIn { from { opacity: 0; transform: translateX(24px); } }
.brief__step legend { font-family: var(--f-display); font-size: 1.35rem; font-weight: 500; letter-spacing: -.02em; margin-bottom: 18px; padding: 0; }
.brief__sub { font-family: var(--f-display); font-size: 1.05rem; font-weight: 500; margin: 28px 0 14px; }
.pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pills--grid { display: grid; grid-template-columns: repeat(2, 1fr); }
.pills label { position: relative; cursor: pointer; }
.pills input { position: absolute; opacity: 0; pointer-events: none; }
.pills span { display: block; padding: 11px 18px; border-radius: 999px; border: 1px solid var(--line-2); font-size: .92rem; transition: all .25s; text-align: center; }
.pills label:hover span { border-color: var(--text); }
.pills input:checked + span { background: var(--text); color: var(--ink); border-color: var(--text); }
.pills input:focus-visible + span { outline: 2px solid var(--c1); outline-offset: 2px; }

.input { width: 100%; font: inherit; color: var(--text); background: rgba(255, 255, 255, .04); border: 1px solid var(--line-2); border-radius: var(--r-sm); padding: 16px 16px; transition: border-color .25s, background .25s; resize: vertical; }
.input:focus { outline: none; border-color: var(--c1); background: rgba(255, 255, 255, .06); }
.input::placeholder { color: #6d6d82; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.float { position: relative; display: block; margin-bottom: 12px; }
.float .input { padding: 24px 16px 8px; }
.float span { position: absolute; left: 17px; top: 17px; color: var(--muted); pointer-events: none; transition: all .2s var(--ease); font-size: .98rem; }
.float .input:focus + span, .float .input:not(:placeholder-shown) + span { top: 7px; font-size: .72rem; color: var(--c1); }
.float .input.is-invalid { border-color: var(--c4); }
.consent { display: flex; gap: 12px; align-items: flex-start; font-size: .88rem; color: var(--muted); cursor: pointer; margin-top: 6px; }
.consent input { width: 18px; height: 18px; accent-color: var(--c3); margin-top: 2px; flex: none; }

.brief__err { color: var(--c4); font-size: .9rem; margin-top: 16px; }
.brief__nav { display: flex; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 32px; }
.brief__nav #briefNext { margin-left: auto; }
.brief__done { text-align: center; margin: auto 0; padding: 40px 0; animation: stepIn .5s var(--ease); }
.brief__done h3 { font-family: var(--f-display); font-size: 1.8rem; margin: 20px 0 8px; }
.brief__check svg { width: 76px; height: 76px; margin: 0 auto; fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.brief__check circle { stroke: var(--c3); stroke-dasharray: 160; stroke-dashoffset: 160; animation: draw .8s var(--ease) forwards; }
.brief__check path { stroke: var(--c1); stroke-dasharray: 40; stroke-dashoffset: 40; animation: draw .5s .5s var(--ease) forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 40px 0 calc(32px + env(safe-area-inset-bottom, 0px)); overflow: hidden; }
.footer__big {
  font-family: var(--f-display); font-weight: 700; letter-spacing: -.06em; line-height: .8;
  font-size: clamp(4.5rem, 22vw, 20rem); text-align: center;
  background: linear-gradient(180deg, rgba(255, 255, 255, .14), rgba(255, 255, 255, 0) 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-bottom: 40px; user-select: none;
}
.footer__grid { display: grid; grid-template-columns: repeat(3, 1fr) auto; gap: 32px; padding-bottom: 40px; border-bottom: 1px solid var(--line); }
.footer__grid .mono { margin-bottom: 12px; }
.footer address { font-style: normal; }
.footer__links { display: grid; gap: 6px; }
.footer__links a { color: var(--muted); transition: color .25s; }
.footer__links a:hover { color: var(--text); }
.footer__cta { align-self: center; }
.footer__bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 24px; font-size: .88rem; color: var(--muted); }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .nav { display: none; }
  .burger { display: block; }
  .hero__cards { display: none; }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .services { grid-template-columns: 1fr; }
  .svc-stage { display: none; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .steps__rail, .step::before { display: none; }
  .calc { grid-template-columns: 1fr; }
  .contact__inner { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .header__cta .btn { display: none; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat, .stat + .stat { padding: 20px 12px 20px 0; border-left: 0; }
  .stat:nth-child(even) { padding-left: 16px; border-left: 1px solid var(--line); }
  .stat:nth-child(n+3) { border-top: 1px solid var(--line); }
  .bento { grid-template-columns: 1fr; }
  .tile--xl, .tile--wide { grid-column: auto; grid-row: auto; }
  .steps { grid-template-columns: 1fr; }
  .cases { grid-template-columns: 1fr; }
  .case { min-height: 0; }
  .faq { grid-template-columns: 1fr; }
  .faq__head { position: static; }
  .calc__kpis { grid-template-columns: 1fr 1fr; }
  .calc__kpis > div:first-child { grid-column: span 2; }
  .grid-2 { grid-template-columns: 1fr; gap: 0; }
  .seg__opts { width: 100%; display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; border-radius: 16px; }
  .seg span { padding: 9px 6px; text-align: center; font-size: .84rem; border-radius: 12px; }
  .hero__field { opacity: .55; }
  .svc__btn { gap: 14px; padding: 22px 0; }
  .svc__panel { padding-left: 42px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__cta { grid-column: span 2; }
  .hero__actions .btn { flex: 1 1 auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .line__in { transform: none; }
}