:root {
  --case-blue: #0a6db1;
  --case-dark: #152d42;
  --case-ink: #17222b;
  --case-orange: #ec4814;
  --case-cream: #fffaf0;
  --case-muted: #5d6e7a;
  --case-border: #dfe8ee;
  --case-pale: #eef8ff;
  --case-green: #168a4d;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--case-ink); overflow-x: hidden; }
header.sticky {
  background-image: linear-gradient(135deg, rgba(113,179,255,.97) 0%, rgba(12,84,145,.95) 55%, rgba(25,109,177,.93) 100%);
  backdrop-filter: blur(10px);
}
.case-container { width: min(1160px, calc(100% - 32px)); margin-inline: auto; }
.case-section { padding: 84px 0; }
.case-section-soft { background: var(--case-pale); }
.case-section-cream { background: var(--case-cream); }
.case-kicker {
  display: inline-flex; align-items: center; gap: 9px; color: var(--case-blue);
  font-size: 13px; font-weight: 850; letter-spacing: .085em; text-transform: uppercase;
}
.case-kicker::before { content: ""; width: 27px; height: 3px; border-radius: 10px; background: var(--case-orange); }
.case-title { max-width: 850px; color: var(--case-dark); font-size: clamp(34px, 4.2vw, 54px); line-height: 1.08; font-weight: 900; letter-spacing: -.025em; margin: 14px 0 18px; }
.case-lead { max-width: 800px; color: var(--case-muted); font-size: 18px; line-height: 1.72; margin: 0; }
.case-center { max-width: 860px; margin: 0 auto 44px; text-align: center; }
.case-center .case-title, .case-center .case-lead { margin-left: auto; margin-right: auto; }

.case-hero { position: relative; isolation: isolate; overflow: hidden; padding: 72px 0 82px; background: linear-gradient(120deg,#edf8ff 0%,#fff 60%,#fffaf0 100%); }
.case-hero::before { content: ""; position: absolute; z-index: -1; width: 520px; height: 520px; border-radius: 50%; left: -240px; top: -250px; background: rgba(71,167,232,.17); }
.case-hero-grid { display: grid; grid-template-columns: minmax(0,.98fr) minmax(0,1.02fr); gap: 54px; align-items: center; }
.case-breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 0 0 24px; color: #657682; font-size: 14px; }
.case-breadcrumb a { color: var(--case-blue); font-weight: 750; text-decoration: none; }
.case-hero h1 { color: #111c25; font-size: clamp(42px, 5vw, 67px); line-height: 1.03; letter-spacing: -.038em; font-weight: 900; margin: 15px 0 22px; }
.case-hero-copy { color: #4f6371; font-size: clamp(17px,1.6vw,20px); line-height: 1.7; margin: 0; }
.case-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.case-btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 52px; padding: 13px 23px; border-radius: 10px; font-size: 15px; font-weight: 850; text-decoration: none; transition: transform .2s ease, background-color .2s ease; }
.case-btn:hover { transform: translateY(-2px); }
.case-btn-primary { color: #fff; background: var(--case-blue); box-shadow: 0 12px 28px rgba(10,109,177,.22); }
.case-btn-primary:hover { color: #fff; background: #075f9c; }
.case-btn-secondary { color: var(--case-dark); background: #fff; border: 2px solid var(--case-dark); }
.case-btn-secondary:hover { color: var(--case-blue); border-color: var(--case-blue); }
.case-hero-visual { position: relative; }
.case-hero-visual img { display: block; width: 100%; height: auto; border-radius: 22px; object-fit: cover; box-shadow: 0 28px 60px rgba(22,61,88,.18); }
.case-result-chip { position: absolute; left: -18px; bottom: 22px; max-width: 270px; padding: 17px 18px; border-radius: 15px; border: 1px solid var(--case-border); background: #fff; box-shadow: 0 16px 38px rgba(16,54,80,.18); }
.case-result-chip strong { display: block; color: var(--case-blue); font-size: 26px; line-height: 1.05; margin-bottom: 5px; }
.case-result-chip span { color: #5e6f7a; font-size: 13px; line-height: 1.42; }

.case-facts { background: var(--case-dark); color: #fff; }
.case-facts-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.case-fact { padding: 23px 18px; text-align: center; border-right: 1px solid rgba(255,255,255,.13); }
.case-fact:last-child { border-right: 0; }
.case-fact small { display: block; color: #9ed6fb; font-size: 11px; font-weight: 850; letter-spacing: .075em; text-transform: uppercase; margin-bottom: 6px; }
.case-fact strong { color: #fff; font-size: 15px; line-height: 1.4; }

.case-two-col { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 62px; align-items: center; }
.case-panel { padding: clamp(28px,4vw,43px); border-radius: 22px; border: 1px solid var(--case-border); background: #fff; box-shadow: 0 14px 38px rgba(26,64,90,.07); }
.case-panel h3 { color: var(--case-dark); font-size: 23px; line-height: 1.25; font-weight: 850; margin: 0 0 16px; }
.case-panel p { color: var(--case-muted); line-height: 1.7; margin: 0; }
.case-list { display: grid; gap: 14px; padding: 0; margin: 25px 0 0; list-style: none; }
.case-list li { display: flex; gap: 12px; align-items: flex-start; color: #435562; line-height: 1.58; }
.case-list i { color: var(--case-green); margin-top: 5px; }
.case-quote { margin: 26px 0 0; padding: 22px 24px; border-left: 4px solid var(--case-orange); border-radius: 0 14px 14px 0; background: var(--case-cream); color: #415461; font-size: 17px; line-height: 1.65; }

.case-card-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 22px; }
.case-card { height: 100%; padding: 29px; border: 1px solid var(--case-border); border-radius: 18px; background: #fff; box-shadow: 0 12px 32px rgba(28,65,91,.055); }
.case-icon { display: grid; place-items: center; width: 56px; height: 56px; margin-bottom: 19px; border-radius: 14px; background: #e7f5ff; color: var(--case-blue); font-size: 22px; }
.case-card:nth-child(even) .case-icon { background: #fff0ea; color: var(--case-orange); }
.case-card h3 { color: var(--case-dark); font-size: 20px; line-height: 1.3; font-weight: 850; margin: 0 0 10px; }
.case-card p { color: var(--case-muted); line-height: 1.63; margin: 0; }

.case-flow { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; counter-reset: case-flow; }
.case-flow-step { position: relative; min-height: 182px; padding: 27px 23px; border-radius: 17px; border: 1px solid #e9e1d5; background: #fff; }
.case-flow-step::before { counter-increment: case-flow; content: counter(case-flow); display: grid; place-items: center; width: 34px; height: 34px; margin-bottom: 16px; border-radius: 50%; background: var(--case-blue); color: #fff; font-weight: 850; }
.case-flow-step h3 { color: var(--case-dark); font-size: 18px; line-height: 1.3; font-weight: 850; margin: 0 0 9px; }
.case-flow-step p { color: var(--case-muted); font-size: 14px; line-height: 1.55; margin: 0; }

.case-result { color: #fff; background: linear-gradient(125deg,#102b41,#0a6db1); }
.case-result .case-kicker { color: #9edcff; }
.case-result .case-title { color: #fff; }
.case-result .case-lead { color: rgba(255,255,255,.78); }
.case-metrics { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; margin-top: 40px; }
.case-metric { padding: 27px; border: 1px solid rgba(255,255,255,.15); border-radius: 17px; background: rgba(255,255,255,.075); }
.case-metric strong { display: block; color: #fff; font-size: clamp(28px,3.5vw,45px); line-height: 1.04; margin-bottom: 10px; }
.case-metric span { color: rgba(255,255,255,.78); line-height: 1.55; }
.case-evidence { margin-top: 20px; color: rgba(255,255,255,.7); font-size: 13px; line-height: 1.5; }

.case-related-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.case-related { display: block; height: 100%; padding: 26px; border-radius: 17px; border: 1px solid var(--case-border); background: #fff; color: inherit; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.case-related:hover { transform: translateY(-4px); box-shadow: 0 16px 36px rgba(26,64,90,.1); color: inherit; }
.case-related span { color: var(--case-blue); font-size: 12px; font-weight: 850; letter-spacing: .07em; text-transform: uppercase; }
.case-related h3 { color: var(--case-dark); font-size: 20px; line-height: 1.3; font-weight: 850; margin: 10px 0 8px; }
.case-related p { color: var(--case-muted); line-height: 1.55; margin: 0; }

.case-cta { padding: 0 0 84px; }
.case-cta-panel { display: grid; grid-template-columns: 1.35fr .65fr; gap: 30px; align-items: center; padding: clamp(34px,5vw,60px); border-radius: 24px; background: var(--case-cream); border: 1px solid #eee3d3; }
.case-cta-panel h2 { color: var(--case-dark); font-size: clamp(30px,4vw,45px); line-height: 1.12; font-weight: 900; margin: 0 0 14px; }
.case-cta-panel p { color: var(--case-muted); font-size: 17px; line-height: 1.65; margin: 0; }
.case-cta-actions { display: flex; justify-content: flex-end; }

@media (max-width: 930px) {
  .case-section { padding: 66px 0; }
  .case-hero-grid, .case-two-col, .case-cta-panel { grid-template-columns: 1fr; }
  .case-hero-visual { max-width: 720px; margin: 4px auto 0; }
  .case-result-chip { left: 16px; }
  .case-card-grid { grid-template-columns: repeat(2,1fr); }
  .case-flow { grid-template-columns: repeat(2,1fr); }
  .case-facts-grid { grid-template-columns: repeat(2,1fr); }
  .case-fact:nth-child(2) { border-right: 0; }
  .case-fact:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,.13); }
  .case-related-grid { grid-template-columns: 1fr; }
  .case-cta-actions { justify-content: flex-start; }
}

@media (max-width: 620px) {
  .case-container { width: min(100% - 24px,1160px); }
  .case-hero { padding: 51px 0 59px; }
  .case-hero h1 { font-size: 40px; }
  .case-actions, .case-actions .case-btn, .case-cta-actions, .case-cta-actions .case-btn { width: 100%; }
  .case-result-chip { position: static; max-width: none; margin-top: 12px; }
  .case-card-grid, .case-flow, .case-metrics, .case-facts-grid { grid-template-columns: 1fr; }
  .case-fact { border-right: 0; border-top: 1px solid rgba(255,255,255,.13); }
  .case-fact:first-child { border-top: 0; }
  .case-metric strong { font-size: 32px; }
  .case-cta { padding-bottom: 60px; }
}

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