/* ============================================================
   Sergey Tarasov — systems & integrations
   Strict B2B design, 2026. Vanilla CSS, no external assets.
   ============================================================ */

:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --text: #10182b;
  --muted: #5c6575;
  --dim: #8a93a3;
  --line: #e3e6ec;
  --line-2: #d3d8e1;

  --accent: #2e5bff;
  --accent-ink: #1e44d8;
  --accent-soft: #eaf0ff;
  --ok: #12b76a;

  --dark-bg: #0a0f1e;
  --dark-card: #111a30;
  --dark-line: rgba(255, 255, 255, 0.09);
  --dark-text: #e8ecf5;
  --dark-muted: #9aa4b8;
  --dark-dim: #6b7590;

  --r-lg: 18px;
  --r-md: 13px;
  --r-sm: 9px;

  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.05);
  --shadow-md: 0 14px 36px -14px rgba(16, 24, 40, 0.22);

  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "JetBrains Mono", Consolas, "Liberation Mono", monospace;

  --wrap: 1160px;
  --pad: clamp(20px, 4.5vw, 44px);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--accent); color: #fff; }

img, svg { display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: var(--pad); }
.center { text-align: center; }

h1, h2, h3 { font-weight: 650; letter-spacing: -0.02em; text-wrap: balance; }
h1 { font-size: clamp(2.3rem, 5.4vw, 4rem); line-height: 1.05; letter-spacing: -0.032em; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); line-height: 1.14; }
h3 { font-size: 1.06rem; line-height: 1.35; }
p { text-wrap: pretty; }

.kicker {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.band-dark .kicker { color: #7e97ff; }

.lead { font-size: clamp(1rem, 1.6vw, 1.15rem); color: var(--muted); max-width: 620px; }
.mt-2 { margin-top: 18px; }
.mt-3 { margin-top: 30px; }
.mt-4 { margin-top: 44px; }
.mb-2 { margin-bottom: 18px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}
.skip-link {
  position: fixed; top: -48px; left: 16px; z-index: 2000;
  background: var(--text); color: #fff; padding: 10px 16px;
  border-radius: var(--r-sm); font-size: 0.85rem; transition: top 0.2s;
}
.skip-link:focus-visible { top: 12px; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* ============================ HEADER ============================ */

.progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 0;
  background: linear-gradient(90deg, var(--accent), #6e8fff);
  z-index: 1200;
}
@supports (animation-timeline: scroll()) {
  .progress {
    animation: grow-progress linear both;
    animation-timeline: scroll(root block);
  }
  @keyframes grow-progress { from { width: 0; } to { width: 100%; } }
}

.site-head {
  position: sticky; top: 0; z-index: 1100;
  background: rgba(245, 246, 248, 0.82);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  backdrop-filter: blur(14px) saturate(150%);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.site-head.scrolled { border-bottom-color: var(--line); box-shadow: 0 6px 24px -18px rgba(16, 24, 40, 0.3); }

.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 66px; }

.logo { display: flex; align-items: center; gap: 11px; min-width: 0; }
.logo-mark {
  width: 34px; height: 34px; flex: none;
  display: grid; place-items: center;
  background: var(--dark-bg); color: #fff;
  border-radius: 10px;
  font-family: var(--mono); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.04em;
  position: relative; overflow: hidden;
}
.logo-mark::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), #6e8fff);
}
.logo-name { font-weight: 650; font-size: 0.95rem; letter-spacing: -0.01em; line-height: 1.2; white-space: nowrap; }
.logo-sub {
  display: block; font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--dim); white-space: nowrap;
}

.nav-links { display: none; align-items: center; gap: 26px; }
.nav-links a {
  font-size: 0.9rem; font-weight: 550; color: var(--muted);
  position: relative; padding: 6px 0; transition: color 0.18s;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1.5px;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-right { display: flex; align-items: center; gap: 10px; }

.burger {
  background: var(--surface); border: 1px solid var(--line); border-radius: 10px;
  width: 40px; height: 40px; display: grid; place-items: center; cursor: pointer;
  transition: border-color 0.18s;
}
.burger:hover { border-color: var(--line-2); }
.burger span { display: block; width: 17px; height: 2px; background: var(--text); border-radius: 2px; position: relative; transition: 0.2s; }
.burger span::before, .burger span::after {
  content: ""; position: absolute; left: 0; width: 17px; height: 2px;
  background: var(--text); border-radius: 2px; transition: 0.2s;
}
.burger span::before { top: -5.5px; }
.burger span::after { top: 5.5px; }

.mobile-menu {
  display: none; flex-direction: column;
  border-top: 1px solid var(--line);
  background: rgba(245, 246, 248, 0.97);
  padding: 10px var(--pad) 18px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 13px 2px; font-weight: 550; border-bottom: 1px solid var(--line); }
.mobile-menu a:last-of-type { border-bottom: none; }
.mobile-menu .btn { margin-top: 14px; justify-content: center; }

@media (min-width: 880px) {
  .nav-links { display: flex; }
  .burger, .mobile-menu { display: none !important; }
}

/* ============================ BUTTONS ============================ */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 24px; border-radius: 12px;
  font-weight: 600; font-size: 0.92rem; letter-spacing: -0.005em;
  border: 1px solid transparent; cursor: pointer;
  transition: transform 0.18s cubic-bezier(0.16, 1, 0.3, 1), background 0.18s, border-color 0.18s, box-shadow 0.18s;
  -webkit-tap-highlight-color: transparent;
  position: relative; overflow: hidden;
}
.btn:active { transform: scale(0.98); }

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-ink); transform: translateY(-1px); box-shadow: 0 10px 24px -10px rgba(46, 91, 255, 0.55); }
.btn-primary::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.22) 50%, transparent 70%);
  transform: translateX(-110%);
}
.btn-primary:hover::after { transition: transform 0.7s ease; transform: translateX(110%); }

.btn-ghost { background: var(--surface); color: var(--text); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--dim); transform: translateY(-1px); }

.btn-dark { background: transparent; color: var(--dark-text); border-color: rgba(255, 255, 255, 0.2); }
.btn-dark:hover { background: rgba(255, 255, 255, 0.07); border-color: rgba(255, 255, 255, 0.35); transform: translateY(-1px); }

.btn-sm { padding: 9px 16px; font-size: 0.84rem; border-radius: 10px; }
.btn-block { width: 100%; }
.btn .arr { transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1); }
.btn:hover .arr { transform: translateX(3px); }

/* ============================ HERO (dark band) ============================ */

.band-dark { background: var(--dark-bg); color: var(--dark-text); }

.hero {
  position: relative; overflow: hidden;
  padding: clamp(64px, 9vw, 108px) 0 clamp(56px, 7vw, 84px);
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: radial-gradient(760px 480px at 68% 12%, rgba(0, 0, 0, 0.9), transparent 72%);
  mask-image: radial-gradient(760px 480px at 68% 12%, rgba(0, 0, 0, 0.9), transparent 72%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(880px 460px at 84% -12%, rgba(46, 91, 255, 0.3), transparent 62%),
    radial-gradient(640px 420px at -8% 112%, rgba(46, 91, 255, 0.13), transparent 58%);
}
.hero > .wrap { position: relative; z-index: 1; }

.hero-grid { display: grid; gap: 48px; align-items: center; }

.status-pill {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 8px 15px; border-radius: 999px;
  border: 1px solid var(--dark-line);
  background: rgba(255, 255, 255, 0.04);
  font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.05em;
  color: var(--dark-muted);
}
.dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--ok); flex: none;
  position: relative;
}
.dot::after {
  content: ""; position: absolute; inset: -4px; border-radius: 50%;
  border: 1px solid var(--ok); opacity: 0.7;
  animation: ping 2.2s cubic-bezier(0, 0, 0.2, 1) infinite;
}
@keyframes ping {
  0% { transform: scale(0.6); opacity: 0.8; }
  80%, 100% { transform: scale(1.7); opacity: 0; }
}

.hero h1 { color: #f4f6fb; margin-top: 22px; max-width: 640px; }
.hero h1 .accent { color: #7e97ff; }
.hero .lead { color: var(--dark-muted); margin-top: 20px; }

.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.hero-stats {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px 28px;
  margin-top: 44px; padding-top: 30px; border-top: 1px solid var(--dark-line);
  max-width: 560px;
}
.stat-num {
  font-family: var(--mono); font-size: clamp(1.5rem, 2.6vw, 1.9rem);
  font-weight: 700; color: #f4f6fb; letter-spacing: -0.02em; line-height: 1.1;
}
.stat-num .suffix { color: #7e97ff; }
.stat-label { font-size: 0.8rem; color: var(--dark-dim); margin-top: 5px; line-height: 1.4; }

@media (min-width: 980px) {
  .hero-grid { grid-template-columns: 1.08fr 0.92fr; gap: 56px; }
  .hero-stats { grid-template-columns: repeat(4, 1fr); }
}

/* --- Operations panel (replaces terminal) --- */
.ops {
  background: var(--dark-card);
  border: 1px solid var(--dark-line);
  border-radius: var(--r-lg);
  box-shadow: 0 30px 70px -30px rgba(0, 0, 0, 0.65);
  overflow: hidden;
}
.ops-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 15px 22px; border-bottom: 1px solid var(--dark-line);
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--dark-dim);
}
.ops-live { display: inline-flex; align-items: center; gap: 8px; color: var(--ok); }
.ops-row {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 15px 22px; border-bottom: 1px solid var(--dark-line);
  transition: background 0.18s;
}
.ops-row:last-of-type { border-bottom: none; }
.ops-row:hover { background: rgba(255, 255, 255, 0.025); }
.ops-row b { display: block; font-size: 0.88rem; font-weight: 600; color: var(--dark-text); line-height: 1.35; }
.ops-row small { display: block; font-size: 0.76rem; color: var(--dark-dim); margin-top: 2px; }
.ops-status {
  flex: none; display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ok);
}
.ops-note {
  padding: 12px 22px; border-top: 1px solid var(--dark-line);
  font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.08em;
  color: var(--dark-dim); text-transform: uppercase;
}

/* ============================ MARQUEE ============================ */

.marquee {
  background: var(--surface); border-block: 1px solid var(--line);
  overflow: hidden; position: relative;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track { display: flex; width: max-content; animation: mq 36s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-half { display: flex; align-items: center; }
.marquee-half span {
  font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--dim);
  padding: 17px 0; margin-right: 56px; white-space: nowrap;
}
.marquee-half span::before { content: "—"; margin-right: 14px; color: var(--line-2); }
@keyframes mq { to { transform: translateX(-50%); } }

/* ============================ SECTIONS ============================ */

.section { padding-block: clamp(64px, 8vw, 100px); }
.section-tight { padding-block: clamp(44px, 6vw, 64px); }

.section-head { margin-bottom: clamp(30px, 4.5vw, 46px); max-width: 720px; }
.section-head h2 { margin-top: 12px; }
.section-head .lead { margin-top: 14px; }

/* --- Cards --- */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s, box-shadow 0.25s;
}
.card:hover { transform: translateY(-3px); border-color: var(--line-2); box-shadow: var(--shadow-md); }

.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: 1fr; }
.g3 { grid-template-columns: 1fr; }
@media (min-width: 640px) { .g2 { grid-template-columns: repeat(2, 1fr); } .g3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 920px) { .g3 { grid-template-columns: repeat(3, 1fr); } }

/* --- Services --- */
.svc { display: flex; flex-direction: column; gap: 12px; }
.svc-top { display: flex; align-items: baseline; justify-content: space-between; }
.svc-num {
  font-family: var(--mono); font-size: 0.78rem; font-weight: 600;
  color: var(--accent); letter-spacing: 0.08em;
}
.svc h3 { font-size: 1.08rem; }
.svc p { font-size: 0.92rem; color: var(--muted); flex: 1; }
.svc-price {
  font-family: var(--mono); font-size: 0.85rem; color: var(--text);
  border-top: 1px solid var(--line); padding-top: 14px; margin-top: 6px;
}

/* --- Case cards --- */
.case-card { display: flex; flex-direction: column; gap: 12px; }
.tag {
  display: inline-flex; align-self: flex-start;
  font-family: var(--mono); font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-soft);
  padding: 5px 11px; border-radius: 999px;
}
.case-card h3 { font-size: 1.14rem; }
.case-card .problem { font-size: 0.9rem; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.case-result { display: flex; gap: 9px; align-items: flex-start; font-size: 0.88rem; color: var(--text); }
.case-result svg { flex: none; color: var(--ok); margin-top: 3px; }
.case-foot {
  display: flex; align-items: center; justify-content: space-between;
  border-top: 1px solid var(--line); padding-top: 14px; margin-top: auto;
  font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--dim);
}
.case-foot .arr { color: var(--accent); transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1); }
.case-card:hover .arr { transform: translateX(4px); }
.case-card:hover { border-color: #c4d0ff; }

/* --- Approach steps --- */
.steps { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 880px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step { border-top: 2px solid var(--line-2); padding-top: 22px; position: relative; }
.step::before {
  content: ""; position: absolute; top: -2px; left: 0; height: 2px; width: 44px;
  background: var(--accent);
}
.step-num { font-family: var(--mono); font-size: 0.78rem; color: var(--accent); letter-spacing: 0.1em; }
.step h3 { margin-top: 12px; }
.step p { margin-top: 9px; font-size: 0.92rem; color: var(--muted); }

/* --- CTA band --- */
.cta-band { text-align: center; position: relative; overflow: hidden; }
.cta-band::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(720px 320px at 50% 118%, rgba(46, 91, 255, 0.32), transparent 65%);
}
.cta-band .wrap { position: relative; z-index: 1; }
.cta-band h2 { color: #f4f6fb; }
.cta-band .lead { color: var(--dark-muted); margin: 16px auto 0; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 32px; }

/* ============================ PAGE HERO (light) ============================ */

.page-hero { padding-block: clamp(48px, 7vw, 84px) 0; }
.page-hero h1 { max-width: 760px; }
.page-hero .lead { margin-top: 18px; }

/* ============================ CASE DETAIL ============================ */

.back-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--dim);
  transition: color 0.18s;
}
.back-link:hover { color: var(--accent); }

.case-head { display: flex; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin-top: 20px; }
.case-head h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); }

.ps-grid { display: grid; gap: 16px; grid-template-columns: 1fr; margin-top: 38px; }
@media (min-width: 820px) { .ps-grid { grid-template-columns: 1fr 1fr; } }
.ps-box {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-lg); padding: 26px; box-shadow: var(--shadow-sm);
}
.ps-label {
  display: flex; align-items: center; gap: 9px;
  font-family: var(--mono); font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 14px;
}
.ps-problem .ps-label { color: #b54708; }
.ps-solution .ps-label { color: var(--accent); }
.ps-box p { font-size: 0.95rem; color: var(--muted); }

.result-list { list-style: none; display: grid; gap: 10px; }
.result-list li { display: flex; gap: 11px; align-items: flex-start; font-size: 0.98rem; }
.result-list svg { flex: none; color: var(--ok); margin-top: 4px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-family: var(--mono); font-size: 0.76rem; color: var(--muted);
  background: var(--surface); border: 1px solid var(--line);
  padding: 7px 13px; border-radius: 999px;
}

.next-case {
  display: flex; flex-wrap: wrap; gap: 18px; align-items: center; justify-content: space-between;
  background: var(--dark-bg); color: var(--dark-text);
  border-radius: var(--r-lg); padding: 30px 32px;
  position: relative; overflow: hidden;
}
.next-case::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(480px 240px at 88% -20%, rgba(46, 91, 255, 0.35), transparent 65%);
}
.next-case > * { position: relative; }
.next-case h3 { color: #f4f6fb; font-size: 1.2rem; }
.next-case p { color: var(--dark-muted); font-size: 0.9rem; margin-top: 6px; }

/* ============================ RESUME ============================ */

.resume-grid { display: grid; gap: 20px; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 880px) { .resume-grid { grid-template-columns: 1.2fr 0.8fr; gap: 44px; } }

.resume-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px 22px; }
.resume-stats .stat-num { font-size: clamp(1.6rem, 2.8vw, 2.1rem); color: var(--text); }
.resume-stats .stat-num .suffix { color: var(--accent); }
.resume-stats .stat-label { color: var(--muted); }

.contact-card {
  display: flex; align-items: center; gap: 14px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-md); padding: 15px 18px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.contact-card:hover { border-color: #c4d0ff; transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.contact-ico {
  width: 40px; height: 40px; flex: none; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent); border-radius: 11px;
}
.contact-card b { display: block; font-size: 0.92rem; line-height: 1.3; }
.contact-card small { display: block; font-size: 0.76rem; color: var(--dim); margin-top: 2px; }
.contact-stack { display: grid; gap: 10px; }

.timeline { display: flex; flex-direction: column; }
.tl-item {
  position: relative; padding: 0 0 34px 30px;
  border-left: 2px solid var(--line);
}
.tl-item:last-child { border-left-color: transparent; padding-bottom: 6px; }
.tl-item::before {
  content: ""; position: absolute; left: -7px; top: 5px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent); border: 2.5px solid var(--bg);
  box-shadow: 0 0 0 1.5px var(--line-2);
}
.tl-period { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); }
.tl-role { font-weight: 650; font-size: 1.08rem; margin-top: 7px; letter-spacing: -0.01em; }
.tl-company { font-size: 0.88rem; color: var(--muted); margin-top: 3px; }
.tl-points { margin-top: 13px; display: grid; gap: 7px; }
.tl-points div { display: flex; gap: 9px; font-size: 0.88rem; color: var(--muted); }
.tl-points div::before { content: "—"; color: var(--dim); flex: none; }

.skill-group b {
  display: block; font-family: var(--mono); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--dim);
  margin-bottom: 12px;
}

/* ============================ CONTACT / FORM ============================ */

.contact-grid { display: grid; gap: 16px; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 880px) { .contact-grid { grid-template-columns: 1fr 1.15fr; gap: 20px; } }

.form-card { padding: clamp(24px, 3vw, 34px); }
.form-card h3 { font-size: 1.2rem; }

.form-grid { display: grid; gap: 15px; margin-top: 22px; }
.field label {
  display: block; font-family: var(--mono); font-size: 0.68rem; font-weight: 600;
  color: var(--dim); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 7px;
}
.field input, .field textarea, .field select {
  width: 100%; padding: 13px 15px;
  background: #fbfbfc; border: 1px solid var(--line-2); border-radius: var(--r-md);
  color: var(--text); font-size: 0.94rem; font-family: var(--sans);
  outline: none; transition: border-color 0.16s, box-shadow 0.16s, background 0.16s;
}
.field input::placeholder, .field textarea::placeholder { color: var(--dim); }
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--accent); background: #fff;
  box-shadow: 0 0 0 3.5px rgba(46, 91, 255, 0.13);
}
.field textarea { resize: vertical; min-height: 116px; }

.form-grid .row2 { display: grid; gap: 15px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .form-grid .row2 { grid-template-columns: 1fr 1fr; } }

.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form-note { font-size: 0.76rem; color: var(--dim); line-height: 1.5; }

.form-ok { display: none; text-align: left; }
.form-ok.show { display: block; animation: ok-in 0.45s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes ok-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ============================ FOOTER ============================ */

.footer { border-top: 1px solid var(--dark-line); padding: 34px 0; }
.footer .wrap { display: flex; flex-wrap: wrap; gap: 14px 28px; align-items: center; justify-content: space-between; }
.footer, .footer a { font-size: 0.82rem; color: var(--dark-dim); }
.footer a { color: var(--dark-muted); transition: color 0.18s; }
.footer a:hover { color: var(--dark-text); }
.footer .mono { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.04em; }
/* a11y: footer links meet 24px min tap target (WCAG 2.2) without visual change */
.footer .mono a { display: inline-block; padding: 8px 0; margin: -8px 0; }

/* ============================ 404 ============================ */

.err-band { min-height: 62vh; display: grid; place-items: center; text-align: center; }
.err-code {
  font-family: var(--mono); font-weight: 700;
  font-size: clamp(4.5rem, 14vw, 8rem); line-height: 1;
  color: transparent; -webkit-text-stroke: 1.5px var(--dark-dim);
  letter-spacing: 0.04em;
}
.err-band h1 { color: #f4f6fb; font-size: clamp(1.4rem, 3.4vw, 2.1rem); margin-top: 18px; }
.err-band p { color: var(--dark-muted); margin: 12px auto 28px; max-width: 420px; }

/* ============================ REVEAL ANIMATION ============================ */

[data-reveal] {
  opacity: 0; transform: translateY(18px);
  transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1), transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: var(--d, 0s);
  will-change: opacity, transform;
}
[data-reveal].in { opacity: 1; transform: none; }

/* ============================ MISC / RESPONSIVE ============================ */

@media (max-width: 560px) {
  .nav { height: 60px; }
  .logo-sub { display: none; }
  .nav-cta { display: none; }
  .burger { width: 44px; height: 44px; }
  .hero-ctas .btn, .cta-actions .btn { flex: 1 1 100%; }
  .pill-hide-sm { display: none; }
  .field input, .field textarea, .field select { font-size: 16px; }
  .hero-stats { gap: 18px 20px; }
  .ops-row { padding: 14px 18px; }
  .ops-head, .ops-note { padding-inline: 18px; }
  .card { padding: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .marquee-track { animation: none; }
}

/* ============================ WOW FX LAYER (fx.js) ============================ */

/* hero canvas behind content */
.hero-fx {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 0; opacity: 0.85;
}
.hero > .wrap { z-index: 2; }
.hero::before, .hero::after { z-index: 1; }

/* tilt cards — hover glow + smooth return (transform/opacity only) */
.tilt-wrap { will-change: transform; transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease; }
.tilt-wrap:hover { box-shadow: 0 18px 50px -18px rgba(46, 91, 255, 0.35); }
@media (pointer: fine) and (min-width: 768px) {
  .case-card, .svc { transform-style: preserve-3d; }
  .case-card:hover .tag, .svc:hover .svc-num { transform: translateZ(24px); }
  .case-card .tag, .svc .svc-num { transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1); }
}

/* magnetic buttons keep their own transform — smooth return */
.btn-primary, .nav-cta { will-change: transform; transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.2s ease, box-shadow 0.25s ease; }

/* cursor ring */
.cursor-ring {
  position: fixed; top: 0; left: 0; width: 32px; height: 32px;
  border: 1.5px solid rgba(126, 151, 255, 0.75); border-radius: 50%;
  pointer-events: none; z-index: 9999; opacity: 0.6;
  transition: opacity 0.2s ease;
  mix-blend-mode: screen;
}
.cursor-ring.hot { opacity: 1; border-color: rgba(255, 255, 255, 0.9); }
@media (pointer: coarse) { .cursor-ring { display: none; } }

/* ops status label flip */
.ops-status { transition: opacity 0.18s ease; }

/* page enter fallback (no View Transitions) */
main.page-enter { opacity: 0; transform: translateY(10px); }
main.page-enter-in { opacity: 1; transform: none; transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1); }

/* full FX fallback */
@media (prefers-reduced-motion: reduce) {
  .hero-fx, .cursor-ring { display: none !important; }
  .tilt-wrap, .btn-primary, .nav-cta, .case-card .tag, .svc .svc-num { transition: none !important; transform: none !important; }
  main.page-enter { opacity: 1; transform: none; }
}

/* ============================ MOBILE FX (fx.js mobile branch) ============================ */

/* softer network on mobile */
.hero-fx-mobile .hero-fx { opacity: 0.55; }

/* scroll parallax layers use transform — compositor only */
@media (max-width: 767px) {
  .hero-grid > div { will-change: transform; }
}

/* glow breathing in dark bands (CSS-only, opacity anim; reduced-motion kills below) */
.glow-breathe::after {
  content: ""; position: absolute; inset: -20%;
  background: radial-gradient(ellipse 60% 45% at 70% 20%, rgba(46, 91, 255, 0.16), transparent 65%);
  animation: fx-breathe 7s ease-in-out infinite;
  pointer-events: none; z-index: 1;
}
@keyframes fx-breathe {
  0%, 100% { opacity: 0.45; }
  50% { opacity: 1; }
}

/* ripple on tap (JS adds span.fx-ripple) */
.fx-ripple {
  position: absolute; left: 0; top: 0; width: 8px; height: 8px;
  border-radius: 50%; pointer-events: none;
  background: rgba(255, 255, 255, 0.35);
  transform: translate(-50%, -50%) scale(1);
  animation: fx-ripple 0.55s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes fx-ripple {
  to { transform: translate(-50%, -50%) scale(26); opacity: 0; }
}

/* mobile FX fallback */
@media (prefers-reduced-motion: reduce) {
  .glow-breathe::after { display: none !important; }
  .hero-fx-mobile .hero-fx { display: none !important; }
  .fx-ripple { display: none !important; }
}

/* ============================ MOBILE FX EXTRA (shimmer / scan / gyro) ============================ */

/* shimmer sweep on hero accent text */
.hero-shimmer .accent {
  position: relative;
  background: linear-gradient(100deg, var(--accent, #2e5bff) 30%, #8fb0ff 50%, var(--accent, #2e5bff) 70%);
  background-size: 220% 100%;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  animation: fx-shimmer 4.5s ease-in-out infinite;
}
@keyframes fx-shimmer {
  0%, 100% { background-position: 100% 0; }
  50% { background-position: -20% 0; }
}

/* ops rows: sequential scan pulse (each row glows as system "checks" it) */
.ops-scan .ops-row { position: relative; }
.ops-scan .ops-row::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: rgba(126, 151, 255, 0.07);
  opacity: 0;
  animation: fx-scan 6s ease-in-out infinite;
}
.ops-scan .ops-row:nth-child(2)::after { animation-delay: 0.35s; }
.ops-scan .ops-row:nth-child(3)::after { animation-delay: 0.7s; }
.ops-scan .ops-row:nth-child(4)::after { animation-delay: 1.05s; }
.ops-scan .ops-row:nth-child(5)::after { animation-delay: 1.4s; }
@keyframes fx-scan {
  0%, 8%, 100% { opacity: 0; }
  3% { opacity: 1; }
}

/* gyro tilt container — transform-only, no layout impact */
@media (max-width: 767px) {
  .hero-grid { transition: transform 0.25s ease-out; will-change: transform; }
}

/* reduced-motion: kill extras */
@media (prefers-reduced-motion: reduce) {
  .hero-shimmer .accent { animation: none; background: none; -webkit-text-fill-color: currentColor; color: inherit; }
  .ops-scan .ops-row::after { display: none !important; }
}

/* ============================ CASE GALLERY ============================ */
.case-gallery {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px;
  margin-top: 30px;
}
.case-shot { margin: 0; }
.case-shot a { display: block; border-radius: 10px; overflow: hidden; border: 1px solid rgba(10, 15, 30, 0.12); transition: box-shadow 0.25s ease, transform 0.35s cubic-bezier(0.16, 1, 0.3, 1); }
.case-shot a:hover { box-shadow: 0 14px 40px -14px rgba(46, 91, 255, 0.4); transform: translateY(-3px); }
.case-shot img { display: block; width: 100%; height: auto; background: #0a0f1e; }
.case-shot figcaption { font-size: 0.8rem; color: var(--muted, #5a6478); margin-top: 7px; line-height: 1.4; }
@media (max-width: 767px) {
  .case-gallery { grid-template-columns: 1fr; gap: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  .case-shot a { transition: none; transform: none; }
}

/* ============================ LIGHTBOX ============================ */

.lightbox {
  position: fixed; inset: 0; z-index: 3000;
  display: none; place-items: center;
  background: rgba(6, 9, 18, 0.94);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  padding: clamp(16px, 3vw, 40px);
}
.lightbox.open { display: grid; animation: lb-in 0.25s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes lb-in { from { opacity: 0; } to { opacity: 1; } }

.lightbox-figure { margin: 0; max-width: min(1600px, 96vw); display: grid; gap: 10px; justify-items: center; }
.lightbox-figure img {
  max-width: 96vw; max-height: 84vh; width: auto; height: auto;
  border-radius: 12px; box-shadow: 0 40px 120px -30px rgba(0, 0, 0, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.lightbox-caption {
  color: #c8d0e0; font-size: 0.86rem; text-align: center; max-width: 720px;
}

.lightbox-close {
  position: absolute; top: 18px; right: 20px;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.08); color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 1.25rem; line-height: 1; cursor: pointer;
  display: grid; place-items: center;
  transition: background 0.18s, transform 0.18s;
}
.lightbox-close:hover { background: rgba(255, 255, 255, 0.16); transform: rotate(90deg); }

.lightbox-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.08); color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 1.3rem; cursor: pointer; display: grid; place-items: center;
  transition: background 0.18s;
}
.lightbox-nav:hover { background: rgba(255, 255, 255, 0.16); }
.lightbox-prev { left: 18px; }
.lightbox-next { right: 18px; }
.lightbox-nav[disabled] { opacity: 0.3; pointer-events: none; }

.lightbox-counter {
  position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%);
  font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.1em;
  color: var(--dark-dim, #6b7590);
}

body.lightbox-open { overflow: hidden; }

@media (prefers-reduced-motion: reduce) {
  .lightbox.open { animation: none; }
}

/* ============================ ANTI-POSITION & SERVICES META ============================ */

.anti-card { display: flex; flex-direction: column; gap: 11px; }
.anti-num {
  font-family: var(--mono); font-size: 0.78rem; font-weight: 600;
  color: var(--accent); letter-spacing: 0.08em;
}
.anti-promise {
  font-family: var(--mono); font-size: 1.02rem; color: var(--dim);
  text-decoration: line-through;
  text-decoration-color: rgba(181, 71, 8, 0.6);
  text-decoration-thickness: 1.5px;
}
.anti-answer { font-size: 0.93rem; color: var(--muted); }
.anti-answer::before { content: "— "; color: var(--accent); }

.svc-meta { font-size: 0.8rem; color: var(--muted); margin-top: -8px; }
.svc-meta::before { content: "→ "; color: var(--ok); font-weight: 600; }