/* Shared case-page styles — Neon Kinetic
 * Keeps all 7 case studies on one visual language. Loaded after
 * Google Fonts (Orbitron · Space Grotesk · JetBrains Mono).
 */

:root {
  --bg: #03030a;
  --bg-2: #0a0820;
  --fg: #e8eaff;
  --fg-dim: #a6a9d6;
  --cyan: #00f0ff;
  --magenta: #ff2bd6;
  --violet: #7c4dff;
  --acid: #c8ff00;
  --line: rgba(0,240,255,0.18);
  --line-strong: rgba(0,240,255,0.45);
  --magenta-glow: 0 0 24px rgba(255,43,214,0.6);
  --cyan-glow: 0 0 24px rgba(0,240,255,0.6);
  --display: 'Orbitron', 'Inter', 'Space Grotesk', 'Helvetica Neue', sans-serif;
  --body: 'Space Grotesk', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg); color: var(--fg); font-family: var(--body); min-height: 100%; line-height: 1.55; }
body {
  background:
    radial-gradient(ellipse at 80% 0%, rgba(255,43,214,0.18), transparent 55%),
    radial-gradient(ellipse at 0% 100%, rgba(0,240,255,0.18), transparent 55%),
    linear-gradient(180deg, #03030a 0%, #06061a 100%);
  background-attachment: fixed;
  overflow-x: hidden;
  cursor: none;
}
::selection { background: var(--cyan); color: var(--bg); }
a { color: inherit; text-decoration: none; }

/* --- custom cursor --- */
.cursor-dot, .cursor-ring {
  position: fixed; top: 0; left: 0; pointer-events: none; z-index: 9999;
  transform: translate(-50%, -50%);
}
.cursor-dot { width: 6px; height: 6px; background: var(--cyan); border-radius: 50%; box-shadow: var(--cyan-glow); }
.cursor-ring { width: 36px; height: 36px; border: 1px solid var(--cyan); border-radius: 50%; transition: width .25s, height .25s, background .25s, border-color .25s; }
body.h-link .cursor-ring { width: 60px; height: 60px; background: rgba(0,240,255,0.15); border-color: var(--magenta); }

/* --- particle field --- */
canvas#field { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
.spotlight {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(circle 600px at var(--mx,50%) var(--my,50%), rgba(0,240,255,0.06), transparent 60%);
}

/* --- scroll progress --- */
.scroll-bar { position: fixed; top: 0; left: 0; height: 2px; width: var(--p, 0%); background: linear-gradient(90deg, var(--cyan), var(--magenta)); z-index: 9999; box-shadow: 0 0 12px var(--cyan); transition: width .08s linear; }

/* --- top tape (marquee) --- */
.tape {
  position: relative; z-index: 3;
  background: rgba(10,8,32,0.6); backdrop-filter: blur(8px);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  padding: 8px 0; overflow: hidden; white-space: nowrap;
}
.tape-track { display: inline-block; padding-left: 100%; animation: marquee 36s linear infinite; }
.tape-track span { padding: 0 32px; color: transparent; -webkit-text-stroke: 1px var(--cyan); }
.tape-track span:nth-child(odd) { -webkit-text-stroke-color: var(--magenta); }
.tape-track span::before { content: '◆'; -webkit-text-stroke: none; color: var(--cyan); margin-right: 12px; font-size: 9px; vertical-align: 2px; }
.tape-track span:nth-child(odd)::before { color: var(--magenta); }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-100%); } }

/* --- container --- */
.wrap { max-width: 1280px; margin: 0 auto; padding: 0 28px; position: relative; z-index: 3; }

/* --- nav --- */
nav.top {
  display: grid; grid-template-columns: auto 1fr auto auto;
  align-items: center; gap: 16px; padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
nav.top .brand-link {
  font-family: var(--display); font-weight: 900; font-size: 18px; letter-spacing: 0.18em;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-decoration: none; cursor: none;
  filter: drop-shadow(0 0 8px rgba(0,240,255,0.4));
}
nav.top .breadcrumb { font-family: var(--mono); font-size: 11px; color: var(--fg-dim); letter-spacing: 0.16em; text-transform: uppercase; justify-self: center; }
nav.top .breadcrumb a { color: var(--cyan); text-decoration: none; transition: text-shadow .2s; }
nav.top .breadcrumb a:hover { text-shadow: var(--cyan-glow); }
nav.top .breadcrumb .sep { color: var(--fg-dim); margin: 0 8px; }
nav.top .back {
  font-family: var(--mono); font-size: 11px; padding: 8px 14px;
  background: rgba(3,3,10,0.4); color: var(--cyan); border: 1px solid var(--cyan);
  text-decoration: none; text-transform: uppercase; letter-spacing: 0.18em;
  transition: all .2s; cursor: none; backdrop-filter: blur(8px);
}
nav.top .back:hover { background: var(--cyan); color: var(--bg); box-shadow: var(--cyan-glow); }

.lang-switch { display: inline-flex; border: 1px solid var(--line); font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; backdrop-filter: blur(8px); }
.lang-switch button { background: transparent; border: none; cursor: none; padding: 5px 10px; color: var(--fg-dim); font: inherit; border-right: 1px solid var(--line); transition: color .15s, background .15s, text-shadow .15s; }
.lang-switch button:last-child { border-right: none; }
.lang-switch button:hover { color: var(--cyan); text-shadow: var(--cyan-glow); }
.lang-switch button.active { background: linear-gradient(90deg, rgba(0,240,255,0.12), rgba(255,43,214,0.12)); color: var(--cyan); text-shadow: var(--cyan-glow); border-color: var(--cyan); }

/* --- case hero --- */
.case-hero { padding: 60px 0 48px; display: grid; grid-template-columns: 1.25fr 1fr; gap: 56px; align-items: end; }
.hero-text { min-width: 0; }
.hero-promo {
  display: block;
  width: auto; height: auto;
  max-width: 100%; max-height: 600px;
  margin-left: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
  align-self: end;
  box-shadow: 0 0 30px rgba(0,240,255,0.18), 0 12px 60px rgba(255,43,214,0.18);
}
.case-hero .meta-row {
  display: grid; grid-template-columns: 1fr auto 1fr; gap: 32px; align-items: end;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--fg-dim); margin-bottom: 28px;
}
.case-hero .meta-row .right { text-align: right; }
.case-hero .meta-row .center {
  padding: 4px 10px; border: 1px solid var(--cyan);
  background: rgba(0,240,255,0.08); color: var(--cyan);
  text-shadow: var(--cyan-glow);
}

.flagship-badge {
  display: inline-block;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--acid); border: 1px solid var(--acid);
  padding: 6px 12px; margin-bottom: 16px;
  box-shadow: 0 0 12px rgba(200,255,0,0.45);
  background: rgba(200,255,0,0.08);
}
.flagship-badge::before { content: '★ '; color: var(--acid); margin-right: 4px; }

.intl-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--cyan); border: 1px solid var(--cyan);
  padding: 6px 12px; margin-bottom: 16px;
  box-shadow: 0 0 12px rgba(0,240,255,0.35);
  background: rgba(0,240,255,0.08);
}
.intl-badge .flag { font-size: 14px; line-height: 1; filter: saturate(1.2); display: inline-flex; align-items: center; }

/* US flag indicator — inline SVG, simplified 5-stripe design for legibility at small sizes */
svg.flag-us {
  display: inline-block; width: 1.4em; height: calc(1.4em / 1.9);
  vertical-align: -0.22em;
  border-radius: 1.5px; overflow: hidden;
}
.intl-badge .flag svg.flag-us { width: 22px; height: 11.5px; vertical-align: middle; }

/* Russia flag indicator — same sizing as US for visual parity in the intl-badge */
svg.flag-ru {
  display: inline-block; width: 1.4em; height: calc(1.4em / 1.5);
  vertical-align: -0.22em;
  border-radius: 1.5px; overflow: hidden;
}
.intl-badge .flag svg.flag-ru { width: 22px; height: 14.7px; vertical-align: middle; }

.ai-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--magenta); border: 1px solid var(--magenta);
  padding: 6px 12px; margin-bottom: 16px;
  box-shadow: 0 0 12px rgba(255,43,214,0.4);
  background: rgba(255,43,214,0.06);
}
.ai-badge::before { content: '⚡'; color: var(--magenta); }

.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.badge-row > * { margin-bottom: 0 !important; }

.case-hero h1 {
  font-family: var(--display); font-weight: 900;
  font-size: clamp(40px, 6.4vw, 92px); line-height: 1; letter-spacing: -0.02em;
  text-transform: uppercase;
  overflow-wrap: break-word; word-break: keep-all;
  background: linear-gradient(180deg, #fff 0%, var(--cyan) 60%, var(--magenta) 110%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 0 40px rgba(0,240,255,0.25);
}
.case-hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 0 30px rgba(255,43,214,0.5);
}

.case-hero .summary { margin-top: 32px; }
.case-hero .summary p { font-size: 17px; line-height: 1.6; max-width: 56ch; color: var(--fg-dim); margin-bottom: 18px; }
.case-hero .summary p em { font-style: normal; color: var(--cyan); text-shadow: var(--cyan-glow); }
.case-hero .summary .tag-stack { display: flex; flex-wrap: wrap; gap: 6px; }
.case-hero .summary .tag-stack span {
  font-family: var(--mono); font-size: 11px; padding: 4px 10px;
  background: rgba(0,240,255,0.08); border: 1px solid var(--line-strong); color: var(--cyan);
  text-transform: uppercase; letter-spacing: 0.12em; border-radius: 999px;
}
.case-hero .summary .tag-stack .yr { background: rgba(255,43,214,0.08); border-color: var(--magenta); color: var(--magenta); }

/* --- facts strip --- */
.facts-strip {
  margin-top: 56px;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: rgba(10,8,32,0.4); backdrop-filter: blur(8px);
  display: grid; grid-template-columns: repeat(4, 1fr);
}
.facts-strip .cell { padding: 22px 24px; border-right: 1px solid var(--line); position: relative; overflow: hidden; }
.facts-strip .cell:last-child { border-right: none; }
.facts-strip .cell::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  transform: translateX(-100%); animation: streak 5s linear infinite;
}
.facts-strip .cell:nth-child(2)::before { animation-delay: -1.2s; background: linear-gradient(90deg, transparent, var(--magenta), transparent); }
.facts-strip .cell:nth-child(3)::before { animation-delay: -2.4s; }
.facts-strip .cell:nth-child(4)::before { animation-delay: -3.6s; background: linear-gradient(90deg, transparent, var(--acid), transparent); }
@keyframes streak { 0% { transform: translateX(-100%); } 60% { transform: translateX(100%); } 100% { transform: translateX(100%); } }

.facts-strip .cell .k {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--fg-dim); margin-bottom: 8px;
}
.facts-strip .cell .v {
  font-family: var(--display); font-weight: 900; font-size: 24px; line-height: 1; letter-spacing: -0.01em;
}
.facts-strip .cell:nth-child(1) .v { color: var(--cyan); text-shadow: var(--cyan-glow); }
.facts-strip .cell:nth-child(2) .v { color: var(--magenta); text-shadow: var(--magenta-glow); }
.facts-strip .cell:nth-child(3) .v { color: var(--violet); }
.facts-strip .cell:nth-child(4) .v em { color: var(--acid); font-style: italic; }
.facts-strip .cell .v em { font-style: italic; }

/* --- sections --- */
section { border-top: 1px solid var(--line); padding: 80px 0; position: relative; }
.sec-head {
  display: grid; grid-template-columns: auto 1fr auto;
  gap: 24px; align-items: end;
  margin-bottom: 56px; padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.sec-head .num {
  font-family: var(--display); font-weight: 900; font-size: 72px; line-height: 0.85; letter-spacing: -0.02em;
  background: linear-gradient(180deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.sec-head h2 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(28px, 4vw, 48px); line-height: 1; letter-spacing: -0.01em; text-transform: uppercase;
  background: linear-gradient(90deg, #fff, var(--fg-dim));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.sec-head .tag {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  padding: 5px 10px; color: var(--cyan); border: 1px solid var(--cyan);
  background: rgba(0,240,255,0.06);
}

/* --- prose --- */
.about-prose {
  max-width: 720px; margin: 0 auto; padding: 0 8px;
  font-size: 17px; line-height: 1.75; color: var(--fg-dim);
}
.about-prose p { margin-bottom: 1.4em; }
.about-prose p:last-child { margin-bottom: 0; }
.about-prose p em {
  font-style: normal; color: var(--cyan); text-shadow: 0 0 16px rgba(0,240,255,0.55);
}
.about-prose.lead p:first-child::first-letter {
  float: left; font-family: var(--display); font-weight: 900;
  font-size: 5em; line-height: 0.86; margin: 0.04em 0.12em -0.06em 0;
  background: linear-gradient(180deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 12px rgba(0,240,255,0.4));
}

/* --- inline figures --- */
.inline-figure { margin: 56px auto; }
.inline-figure-mobile { max-width: 320px; }
.inline-figure-wide { max-width: 100%; margin: 64px 0; }

/* Tall mobile screenshots — clip the bottom and fade out */
.inline-figure.crop-bottom img {
  height: 540px;
  object-fit: cover;
  border-radius: 14px;
  object-position: top;
  -webkit-mask-image: linear-gradient(180deg, #000 78%, rgba(0,0,0,0.6) 92%, rgba(0,0,0,0) 100%);
          mask-image: linear-gradient(180deg, #000 78%, rgba(0,0,0,0.6) 92%, rgba(0,0,0,0) 100%);
}
.inline-figure-pair {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  max-width: 540px; margin: 56px auto;
}
.inline-figure-trio {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px;
  max-width: 720px; margin: 56px auto;
}
.inline-figure img,
.inline-figure-pair img,
.inline-figure-trio img {
  width: 100%; height: auto; display: block;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(10,8,32,0.5);
  transition: border-color .25s, box-shadow .25s;
}
.inline-figure:hover img,
.inline-figure-pair figure:hover img,
.inline-figure-trio figure:hover img {
  border-color: var(--cyan);
  box-shadow: 0 0 32px rgba(0,240,255,0.25);
}
.inline-figure figcaption,
.inline-figure-pair figcaption,
.inline-figure-trio figcaption {
  margin-top: 10px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--fg-dim);
  display: flex; gap: 10px; align-items: baseline;
}
.inline-figure figcaption b,
.inline-figure-pair figcaption b,
.inline-figure-trio figcaption b { font-weight: 700; color: var(--cyan); text-shadow: var(--cyan-glow); }

/* --- modules / platforms / integrations grid (06 / 07 / 10) --- */
.modules-grid, .platforms-grid {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px;
  max-width: 720px; margin: 56px auto;
}
.integrations-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
  margin: 40px 0 0;
}
.integrations-grid .platform-card { min-height: 200px; padding: 22px 18px; gap: 12px; }
.integrations-grid .platform-card .num { font-size: 26px; }
.integrations-grid .platform-card h3 { font-size: 16px; }
.integrations-grid .platform-card p { font-size: 13px; }
.integrations-grid .platform-card:nth-child(3) {
  border-color: var(--magenta);
  background: rgba(255,43,214,0.06);
}
@media (max-width: 1080px) {
  .integrations-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .integrations-grid { grid-template-columns: 1fr; }
}
.module-card, .platform-card {
  border: 1px solid var(--line);
  background: rgba(10,8,32,0.55); backdrop-filter: blur(10px);
  padding: 24px 20px; min-height: 220px;
  display: flex; flex-direction: column; gap: 14px;
  transition: border-color .25s, transform .25s, box-shadow .25s;
  position: relative; overflow: hidden;
}
.module-card::before, .platform-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  transform: translateX(-100%); transition: transform .6s;
}
.module-card:hover, .platform-card:hover {
  border-color: var(--cyan); transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,240,255,0.18);
}
.module-card:hover::before, .platform-card:hover::before { transform: translateX(100%); }
.module-card:nth-child(2), .platform-card:nth-child(2) {
  border-color: var(--magenta);
  background: rgba(255,43,214,0.06);
}
.module-card .num, .platform-card .num {
  font-family: var(--display); font-weight: 900; font-size: 32px; line-height: 0.85;
  background: linear-gradient(180deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.module-card h3, .platform-card h3 {
  font-family: var(--display); font-weight: 700; font-size: 18px;
  text-transform: uppercase; letter-spacing: 0.02em; line-height: 1; color: var(--fg);
}
.module-card p, .platform-card p { font-family: var(--body); font-size: 13.5px; line-height: 1.55; color: var(--fg-dim); }
.module-card p em, .platform-card p em { font-style: normal; color: var(--cyan); text-shadow: var(--cyan-glow); }
.module-card .who, .platform-card .tech {
  margin-top: auto;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--cyan); padding-top: 10px; border-top: 1px dashed var(--line-strong);
}

/* --- landings grid (case 04) --- */
.landings-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
  margin: 56px 0;
}
.landing-card {
  display: grid; gap: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(10,8,32,0.5); backdrop-filter: blur(8px);
  overflow: hidden;
  transition: border-color .25s, box-shadow .25s, transform .25s;
}
.landing-card:hover { border-color: var(--cyan); box-shadow: 0 0 30px rgba(0,240,255,0.18); transform: translateY(-3px); }
.landing-card .img-frame {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 14px;
  background: rgba(3,3,10,0.4);
  border-bottom: 1px solid var(--line);
  position: relative;
}
.landing-card .img-frame img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: top;
  display: block;
  transition: transform .4s;
}
.landing-card:hover .img-frame img { transform: scale(1.04); }
.landing-card figcaption {
  display: grid; grid-template-columns: auto 1fr; gap: 16px;
  padding: 18px 20px; align-items: start;
}
.lf-num {
  font-family: var(--display); font-weight: 900; font-size: 30px; line-height: 0.9;
  background: linear-gradient(180deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lf-text { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.lf-title {
  font-family: var(--display); font-weight: 700; font-size: 18px;
  text-transform: uppercase; color: var(--fg); letter-spacing: 0.02em; line-height: 1;
}
.lf-meta {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em;
  color: var(--fg-dim); text-transform: uppercase;
}
.lf-meta .sep { color: var(--cyan); margin: 0 6px; }
.lf-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.lf-tags span {
  font-family: var(--mono); font-size: 10px; padding: 3px 9px;
  border: 1px solid var(--line-strong); border-radius: 999px;
  color: var(--cyan); background: rgba(0,240,255,0.06);
  letter-spacing: 0.1em;
}

@media (max-width: 720px) {
  .landings-grid { grid-template-columns: 1fr; }
}

/* --- stack chips --- */
.stack-flat { display: flex; flex-wrap: wrap; gap: 8px; }
.stack-flat span {
  font-family: var(--mono); font-size: 12px; padding: 6px 14px;
  border: 1px solid var(--line); border-radius: 999px;
  background: rgba(10,8,32,0.4); color: var(--fg-dim);
  transition: all .2s; cursor: none;
}
.stack-flat span:hover { border-color: var(--cyan); color: var(--cyan); text-shadow: var(--cyan-glow); }

/* --- next case CTA --- */
.next-case {
  display: grid; grid-template-columns: 1fr auto;
  align-items: center; gap: 40px;
  padding: 48px;
  background: linear-gradient(135deg, rgba(0,240,255,0.06), rgba(255,43,214,0.10));
  border: 1px solid var(--line);
  text-decoration: none; color: var(--fg);
  transition: all .25s; backdrop-filter: blur(10px);
  position: relative; overflow: hidden;
}
.next-case::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(0,240,255,0), rgba(255,43,214,0.2));
  opacity: 0; transition: opacity .25s;
}
.next-case:hover { border-color: var(--cyan); box-shadow: 0 0 40px rgba(0,240,255,0.18); }
.next-case:hover::before { opacity: 1; }
.next-case > * { position: relative; z-index: 1; }
.next-case .next-meta {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--cyan); margin-bottom: 8px; display: flex; gap: 12px; align-items: center;
}
.next-case .next-meta::before { content: '→'; color: var(--magenta); font-size: 16px; }
.next-case h4 {
  font-family: var(--display); font-weight: 900;
  font-size: clamp(32px, 4.5vw, 56px); line-height: 1; letter-spacing: -0.02em; text-transform: uppercase;
  background: linear-gradient(90deg, #fff, var(--cyan));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.next-case h4 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.next-case .arrow {
  font-family: var(--display); font-weight: 900; font-size: 80px; line-height: 0.8;
  color: var(--cyan); text-shadow: var(--cyan-glow);
  transition: transform .25s, text-shadow .25s;
}
.next-case:hover .arrow { transform: translateX(12px); color: var(--magenta); text-shadow: var(--magenta-glow); }

/* --- previous link --- */
.cta-back { padding: 56px 0 64px; text-align: center; }
.cta-back a {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 14px 28px;
  font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.18em;
  background: rgba(3,3,10,0.4); color: var(--cyan); border: 1px solid var(--cyan);
  text-decoration: none; backdrop-filter: blur(8px);
  transition: all .2s; cursor: none; font-weight: 500;
}
.cta-back a:hover { background: var(--cyan); color: var(--bg); box-shadow: var(--cyan-glow); }

/* --- footer --- */
footer.foot {
  border-top: 1px solid var(--line); padding: 28px 0;
  display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px; align-items: center;
  font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.16em; color: var(--fg-dim);
}
footer.foot .center {
  text-align: center; padding: 4px 10px;
  border: 1px solid var(--line); color: var(--cyan);
  background: rgba(0,240,255,0.05);
}
footer.foot .right { text-align: right; }

/* --- reveal-on-scroll --- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s, transform .7s; }
.reveal.on { opacity: 1; transform: translateY(0); }

/* --- responsive --- */
@media (max-width: 960px) {
  html, body { cursor: auto; }
  .cursor-dot, .cursor-ring { display: none; }
  nav.top { grid-template-columns: 1fr auto auto; gap: 12px; }
  nav.top .breadcrumb { display: none; }
  .case-hero { grid-template-columns: 1fr; gap: 32px; }
  .hero-promo { order: 2; }
  .case-hero .meta-row { grid-template-columns: 1fr; gap: 8px; }
  .case-hero .meta-row .right { text-align: left; }
  .facts-strip { grid-template-columns: 1fr 1fr; }
  .facts-strip .cell:nth-child(2) { border-right: none; }
  .facts-strip .cell:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .inline-figure-pair { grid-template-columns: 1fr; max-width: 320px; }
  .inline-figure-trio { grid-template-columns: 1fr; max-width: 320px; }
  .modules-grid, .platforms-grid { grid-template-columns: 1fr; max-width: 360px; }
  .next-case { grid-template-columns: 1fr; padding: 32px; }
  .sec-head { grid-template-columns: 1fr; gap: 8px; }
  .sec-head .num { font-size: 56px; }
  .lang-switch button, .next-case, .stack-flat span, nav.top .back, .cta-back a { cursor: pointer; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01s !important; transition-duration: 0.01s !important; }
}