:root {
  --ink: #101316;
  --black: #080a0d;
  --blue: #16588e;
  --light-blue: #35a8e0;
  --red: #e7222e;
  --surface: #f4f7fa;
  --white: #fff;
  --muted: #60707c;
  --line: rgba(16, 19, 22, 0.12);
  --display: "Orbitron", "Michroma", "Audiowide", "Exo 2", sans-serif;
  --body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --shadow: 0 22px 60px rgba(8, 21, 31, 0.11);
  --gutter: clamp(18px, 4vw, 42px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: var(--body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; height: auto; }
button, a { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible { outline: 3px solid rgba(53,168,224,.72); outline-offset: 4px; }
.shell { width: min(1180px, calc(100% - (var(--gutter) * 2))); margin-inline: auto; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255,255,255,.09);
  background: rgba(8,10,13,.9);
  backdrop-filter: blur(18px) saturate(140%);
}
.nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { width: 174px; flex: 0 0 auto; }
.brand img { filter: brightness(0) invert(1); }
.navlinks { display: flex; align-items: center; gap: 26px; color: rgba(255,255,255,.78); font-size: .9rem; font-weight: 800; }
.navlinks a:hover { color: #fff; }
.nav-cta, .button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 900;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.nav-cta, .button.primary { color: #fff; background: var(--red); box-shadow: 0 14px 30px rgba(231,34,46,.23); }
.nav-cta:hover, .button:hover { transform: translateY(-2px); }
.button.secondary { color: #fff; border: 1px solid rgba(255,255,255,.32); background: rgba(255,255,255,.06); }

.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: var(--black);
}
.hero::before {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(5,13,19,.97) 0%, rgba(5,13,19,.9) 42%, rgba(5,13,19,.32) 78%, rgba(5,13,19,.2) 100%), url("assets/case-studies/paint-check.jpg") 72% 50% / cover no-repeat;
  content: "";
}
.hero::after {
  position: absolute;
  inset: auto 0 0;
  height: 140px;
  background: linear-gradient(transparent, var(--black));
  content: "";
}
.hero-inner { position: relative; z-index: 1; min-height: 650px; display: grid; grid-template-columns: minmax(0, 680px) 1fr; align-items: center; padding-block: 92px 110px; }
.eyebrow { margin: 0 0 18px; color: #72c8ef; font-size: .78rem; font-weight: 950; letter-spacing: .16em; text-transform: uppercase; }
h1, h2, .case-title { font-family: var(--display); font-weight: 650; text-wrap: balance; }
h1 { max-width: 780px; margin: 0; font-size: clamp(2.4rem, 4.7vw, 4.2rem); line-height: 1.03; letter-spacing: .005em; }
.hero-copy { max-width: 670px; margin: 25px 0 0; color: rgba(255,255,255,.79); font-size: clamp(1.05rem, 1.7vw, 1.25rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.proof-strip { position: relative; z-index: 2; margin-top: -1px; color: #fff; background: var(--black); }
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid rgba(255,255,255,.12); border-radius: 22px 22px 0 0; background: rgba(16,25,31,.92); }
.proof-item { padding: 24px 28px; }
.proof-item + .proof-item { border-left: 1px solid rgba(255,255,255,.1); }
.proof-item strong { display: block; margin-bottom: 3px; font-family: var(--display); font-size: 1.12rem; }
.proof-item span { color: rgba(255,255,255,.62); font-size: .9rem; }

.intro { padding: 92px 0 44px; background: #fff; }
.section-head { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr); gap: 50px; align-items: end; margin-bottom: 36px; }
.kicker { margin: 0 0 10px; color: var(--blue); font-size: .74rem; font-weight: 950; letter-spacing: .14em; text-transform: uppercase; }
h2 { margin: 0; font-size: clamp(2rem, 4.6vw, 3.7rem); line-height: 1.06; letter-spacing: .01em; }
.section-head > p { margin: 0; color: var(--muted); font-size: 1.04rem; }
.case-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 28px; }
.case-card { overflow: hidden; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 24px; background: #fff; box-shadow: 0 14px 40px rgba(12,31,44,.07); transition: transform .25s ease, box-shadow .25s ease; }
.case-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.case-card figure { position: relative; overflow: hidden; aspect-ratio: 4 / 3; margin: 0; background: #dbe3e9; }
.case-card img { height: 100%; object-fit: cover; transition: transform .55s ease; }
.case-card:hover img { transform: scale(1.035); }
.verdict { position: absolute; top: 16px; left: 16px; display: inline-flex; align-items: center; gap: 7px; padding: 8px 11px; border-radius: 999px; color: #fff; background: rgba(8,10,13,.86); backdrop-filter: blur(10px); font-size: .7rem; font-weight: 950; letter-spacing: .08em; text-transform: uppercase; }
.verdict::before { width: 8px; height: 8px; border-radius: 50%; background: var(--light-blue); content: ""; }
.verdict.stop::before { background: var(--red); }
.verdict.buy::before { background: #52b788; }
.card-body { display: flex; flex: 1; flex-direction: column; padding: 23px; }
.meta { margin: 0 0 10px; color: var(--blue); font-size: .72rem; font-weight: 950; letter-spacing: .1em; text-transform: uppercase; }
.case-card h3 { margin: 0; font-size: 1.27rem; line-height: 1.27; letter-spacing: 0; }
.case-card .summary { margin: 13px 0 20px; color: var(--muted); font-size: .94rem; }
.card-metric { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: end; margin-top: auto; padding-top: 17px; border-top: 1px solid var(--line); }
.card-metric span { color: var(--muted); font-size: .78rem; }
.card-metric strong { color: var(--ink); font-family: var(--display); font-size: 1rem; text-align: right; }
.read-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 20px; color: var(--blue); font-weight: 900; font-size: .9rem; }
.read-link::after { content: "→"; transition: transform .2s ease; }
.case-card:hover .read-link::after { transform: translateX(4px); }

.stories { padding: 60px 0 100px; background: #fff; }
.story { scroll-margin-top: 96px; display: grid; grid-template-columns: minmax(290px, .8fr) minmax(0, 1.2fr); margin-top: 34px; overflow: hidden; border: 1px solid var(--line); border-radius: 30px; background: var(--surface); box-shadow: var(--shadow); }
.story + .story { margin-top: 52px; }
.story-visual { position: relative; min-height: 580px; }
.story-visual img { position: absolute; inset: 0; height: 100%; object-fit: cover; }
.story-visual::after { position: absolute; inset: 45% 0 0; background: linear-gradient(transparent, rgba(8,10,13,.88)); content: ""; }
.story-number { position: absolute; z-index: 1; right: 24px; bottom: 18px; color: rgba(255,255,255,.9); font-family: var(--display); font-size: 4.5rem; font-weight: 900; line-height: 1; }
.story-content { padding: clamp(30px, 5vw, 60px); }
.story-topline { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 17px; }
.chip { display: inline-flex; padding: 7px 10px; border: 1px solid rgba(22,88,142,.16); border-radius: 999px; color: #31546a; background: #e8f2f8; font-size: .7rem; font-weight: 900; letter-spacing: .06em; text-transform: uppercase; }
.chip.sample { color: #7c4b0e; border-color: rgba(171,103,16,.19); background: #fff1dc; }
.case-title { margin: 0; font-size: clamp(1.65rem, 3vw, 2.5rem); line-height: 1.13; letter-spacing: .01em; }
.story-lead { margin: 16px 0 0; color: var(--muted); font-size: 1.02rem; }
.story-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 28px 0; }
.fact { padding: 16px; border: 1px solid rgba(16,19,22,.09); border-radius: 16px; background: #fff; }
.fact span { display: block; color: var(--muted); font-size: .72rem; }
.fact strong { display: block; margin-top: 5px; font-size: .95rem; line-height: 1.3; }
.story-flow { display: grid; gap: 18px; }
.flow-row { display: grid; grid-template-columns: 115px 1fr; gap: 18px; padding-top: 18px; border-top: 1px solid var(--line); }
.flow-row:first-child { padding-top: 0; border-top: 0; }
.flow-label { color: var(--blue); font-size: .73rem; font-weight: 950; letter-spacing: .09em; text-transform: uppercase; }
.flow-row p { margin: 0; color: #36444d; }
.finding-list { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.finding-list li { display: grid; grid-template-columns: 18px 1fr; gap: 8px; color: #36444d; }
.finding-list li::before { color: var(--light-blue); font-weight: 950; content: "✓"; }
.outcome { display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: center; margin-top: 27px; padding: 19px; border-radius: 17px; color: #fff; background: linear-gradient(135deg, #123e5f, #16588e); }
.outcome.stop { background: linear-gradient(135deg, #52151b, #a81e27); }
.outcome-icon { display: grid; width: 44px; height: 44px; place-items: center; border: 1px solid rgba(255,255,255,.28); border-radius: 50%; font-weight: 950; }
.outcome small { display: block; color: rgba(255,255,255,.7); font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.outcome strong { display: block; margin-top: 2px; line-height: 1.3; }

.method { padding: 88px 0; color: #fff; background: #0d1820; }
.method .section-head { align-items: start; }
.method .kicker { color: #72c8ef; }
.method .section-head > p { color: rgba(255,255,255,.62); }
.method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; overflow: hidden; border: 1px solid rgba(255,255,255,.1); border-radius: 22px; background: rgba(255,255,255,.1); }
.method-card { padding: 27px; background: #0d1820; }
.method-card span { display: grid; width: 38px; height: 38px; margin-bottom: 34px; place-items: center; border-radius: 50%; color: #07141d; background: var(--light-blue); font-family: var(--display); font-weight: 900; }
.method-card h3 { margin: 0 0 9px; font-size: 1.03rem; }
.method-card p { margin: 0; color: rgba(255,255,255,.62); font-size: .9rem; }

.cta { padding: 90px 0; color: #fff; background: linear-gradient(120deg, #11456b, #176ba5); }
.cta-inner { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 48px; align-items: center; }
.cta h2 { max-width: 780px; }
.cta p { max-width: 690px; margin: 16px 0 0; color: rgba(255,255,255,.75); }
.cta-actions { display: grid; gap: 10px; min-width: 230px; }

footer { padding: 34px 0; color: rgba(255,255,255,.68); background: var(--black); }
.footer-row { display: flex; justify-content: space-between; gap: 24px; align-items: center; font-size: .86rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-links a:hover { color: #fff; }

@media (max-width: 900px) {
  .navlinks { display: none; }
  .hero::before { background: linear-gradient(90deg, rgba(5,13,19,.98), rgba(5,13,19,.7)), url("assets/case-studies/paint-check.jpg") 65% 50% / cover no-repeat; }
  .hero-inner { min-height: 610px; grid-template-columns: 1fr; }
  .section-head, .story, .cta-inner { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .case-card { display: grid; grid-template-columns: minmax(230px, .7fr) 1fr; }
  .case-card figure { height: 100%; aspect-ratio: auto; }
  .story-visual { min-height: 390px; }
  .method-grid { grid-template-columns: 1fr; }
  .cta-actions { display: flex; flex-wrap: wrap; }
}

@media (max-width: 620px) {
  html { scroll-padding-top: 76px; }
  .nav { min-height: 68px; }
  .brand { width: 132px; }
  .nav-cta { min-height: 42px; padding: 0 14px; font-size: .84rem; }
  .hero-inner { min-height: 590px; padding-block: 72px 96px; }
  h1 { font-size: clamp(2.15rem, 10vw, 2.7rem); }
  .proof-grid { grid-template-columns: 1fr; }
  .proof-item + .proof-item { border-top: 1px solid rgba(255,255,255,.1); border-left: 0; }
  .intro { padding-top: 66px; }
  .section-head { gap: 22px; }
  .case-card { display: flex; }
  .case-card figure { aspect-ratio: 4 / 3; }
  .stories { padding-bottom: 70px; }
  .story { border-radius: 22px; }
  .story-visual { min-height: 300px; }
  .story-content { padding: 26px 20px 24px; }
  .story-facts { grid-template-columns: 1fr; }
  .flow-row { grid-template-columns: 1fr; gap: 7px; }
  .cta { padding: 68px 0; }
  .cta-actions, .cta-actions .button { width: 100%; }
  .footer-row { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}