:root {
  --bg: #0b0c0e;
  --panel: #121418;
  --ink: #ece7dc;
  --mute: #a39f94;
  --gold: #c9ac78;
  --gold-deep: #7a5c22;
  --line: rgba(236, 231, 220, 0.14);
  --ok: #8dbb98;
  --warn: #c9ac78;
  --err: #e08a72;
  --light: #ece7dc;
  --dark-text: #0b0c0e;
  --soft: #4a4741;
  --font: "Manrope", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --max: 1184px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--gold);
  color: var(--dark-text);
  padding: 0.7rem 1rem;
  z-index: 100;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
}

.page {
  overflow: hidden;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 48px;
}

.kicker {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
}

.kicker.dark {
  color: var(--gold-deep);
}

h2 {
  margin: 16px 0 0;
  font-weight: 800;
  font-size: clamp(36px, 5.2vw, 72px);
  line-height: 1.03;
  letter-spacing: -0.03em;
}

h2.dark {
  color: var(--dark-text);
}

.lead {
  color: var(--mute);
  font-size: 18px;
  line-height: 1.6;
  margin: 24px 0 0;
  max-width: 620px;
}

.lead.dark {
  color: var(--soft);
}

.lead.wide {
  max-width: 820px;
}

.sec {
  padding: 120px 0;
  border-top: 1px solid var(--line);
}

.sec.light {
  background: var(--light);
  color: var(--dark-text);
  border-top: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 28px;
  font-weight: 700;
  font-size: 15px;
  border: 0;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn-primary {
  background: var(--gold);
  color: var(--dark-text);
}

.btn-primary:hover {
  background: var(--ink);
}

.btn-line {
  border: 1px solid rgba(236, 231, 220, 0.4);
  background: transparent;
  color: var(--ink);
}

.btn-line:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn-sm {
  min-height: 44px;
  padding: 0 20px;
}

.btn-xs {
  min-height: 40px;
  padding: 0 16px;
  font-size: 13px;
}

.btn-block {
  width: 100%;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.logo {
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0.3em;
}

.nav-links {
  display: none;
  gap: 36px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
}

.nav-actions {
  display: none;
  align-items: center;
  gap: 16px;
}

.phone {
  font-weight: 700;
  white-space: nowrap;
}

.menu-btn {
  width: 40px;
  height: 40px;
  border: 0;
  background: transparent;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  padding: 0;
}

.menu-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
}

.nav-mobile {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(11, 12, 14, 0.97);
  display: grid;
  align-content: center;
  gap: 24px;
  padding: 48px;
  font-size: 28px;
  font-weight: 700;
}

.nav-mobile[hidden] {
  display: none;
}

@media (min-width: 960px) {
  .nav-links,
  .nav-actions {
    display: flex;
  }

  .menu-btn {
    display: none;
  }
}

.hero {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 32px;
  align-items: center;
  min-height: 660px;
  padding: 40px 0 80px;
}

.hero-title {
  margin: 24px 0 0;
  font-weight: 800;
  font-size: clamp(52px, 8vw, 116px);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.hero-title span {
  color: var(--gold);
}

.hero-lead {
  font-size: 20px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 40px;
}

.stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.stats b {
  display: block;
  font-size: 32px;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.sec.light .stats b,
.team .stats b {
  color: inherit;
}

.stats span {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}

.brain-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 460px;
  perspective: 900px;
}

.brain-scene {
  position: relative;
  width: min(100%, 460px);
  aspect-ratio: 1;
  transform-style: preserve-3d;
}

.brain-glow {
  position: absolute;
  inset: 18%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 172, 120, 0.28), transparent 70%);
  filter: blur(8px);
  pointer-events: none;
}

.brain-img {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 56%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  z-index: 2;
  background: var(--gold);
  -webkit-mask-image: url("assets/brain-clean.png");
  mask-image: url("assets/brain-clean.png");
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  animation: brainPulse 5s ease-in-out infinite;
  user-select: none;
  pointer-events: none;
}

.neurons {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  z-index: 3;
}

.neuron {
  position: absolute;
  left: 50%;
  top: 50%;
  white-space: nowrap;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid rgba(201, 172, 120, 0.55);
  background: rgba(11, 12, 14, 0.92);
  color: var(--ink);
  padding: 7px 11px;
  will-change: transform, opacity;
  backface-visibility: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.neuron::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  transform: translateY(-50%);
  box-shadow: 0 0 10px rgba(201, 172, 120, 0.8);
}

@keyframes brainPulse {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
    filter: drop-shadow(0 0 10px rgba(201, 172, 120, 0.2));
  }
  50% {
    transform: translate(-50%, -50%) scale(1.04);
    filter: drop-shadow(0 0 22px rgba(201, 172, 120, 0.45));
  }
}

.grid {
  display: grid;
  gap: 1px;
  background: rgba(236, 231, 220, 0.14);
  border: 1px solid rgba(236, 231, 220, 0.14);
  margin-top: 56px;
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.cell,
.card {
  background: var(--bg);
  padding: 32px 28px;
}

.card {
  background: var(--panel);
  padding: 36px 32px;
}

.big {
  margin: 0;
  font-weight: 800;
  font-size: 60px;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--gold);
}

.card .big {
  margin-top: 32px;
}

.cell-title {
  font-size: 18px;
  line-height: 1.45;
  margin: 16px 0 0;
}

.cell-title.muted {
  color: var(--mute);
}

.cell-title.small {
  font-size: 16px;
}

.cell-meta {
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--mute);
  margin-top: 16px;
}

.card h3,
.cell h3 {
  margin: 16px 0 0;
  font-size: 24px;
  line-height: 1.2;
}

.cell h3 {
  margin-top: 20px;
}

.service-list {
  margin-top: 56px;
  border-top: 2px solid var(--dark-text);
}

.service {
  display: grid;
  grid-template-columns: 70px 260px 1fr;
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid rgba(11, 12, 14, 0.25);
  align-items: baseline;
  font-size: 17px;
  line-height: 1.55;
  color: var(--soft);
}

.service-num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--gold-deep);
}

.service h3 {
  margin: 0;
  font-size: 24px;
  letter-spacing: -0.02em;
  color: var(--dark-text);
}

.service-body p {
  margin: 0;
}

.service-metrics {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.service-metrics b {
  display: block;
  font-size: 30px;
  letter-spacing: -0.03em;
  color: var(--gold-deep);
  font-weight: 800;
}

.service-metrics small {
  display: block;
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--soft);
}

.mock-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 56px;
}

.mock {
  background: var(--panel);
  border: 1px solid rgba(236, 231, 220, 0.18);
}

.mock-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--mute);
}

.mock-head i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(236, 231, 220, 0.25);
}

.mock-head span {
  margin-left: 12px;
}

.mock-body {
  padding: 22px 20px;
}

.mock-label {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
}

.mock-row {
  display: grid;
  grid-template-columns: 1.3fr 1.2fr 1fr 1fr;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(236, 231, 220, 0.1);
  font-size: 14px;
  align-items: center;
}

.mock-head-row {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
  margin-top: 12px;
}

.pill {
  display: inline-block;
  justify-self: start;
  padding: 4px 10px;
  border: 1px solid rgba(236, 231, 220, 0.3);
  font-size: 12px;
}

.pill.ok {
  border-color: var(--ok);
  color: var(--ok);
}

.pill.warn {
  border-color: var(--warn);
  color: var(--warn);
}

.pill.err {
  border-color: var(--err);
  color: var(--err);
}

.note {
  margin-top: 18px;
  padding: 14px 16px;
  background: var(--bg);
  border-left: 2px solid var(--gold);
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink);
}

.note-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.ask {
  border: 1px solid rgba(236, 231, 220, 0.3);
  padding: 14px 16px;
  font-size: 15px;
}

.team {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 64px;
  align-items: center;
}

.portrait {
  aspect-ratio: 4 / 5;
  background: #16181c;
  border: 1px solid var(--line);
  border-bottom: 2px solid var(--gold);
  overflow: hidden;
}

.portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(1) contrast(1.05);
}

.faq-title {
  margin-bottom: 48px;
}

.faq {
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 22px;
  list-style: none;
  min-height: 44px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  color: var(--gold);
  font-size: 28px;
}

.faq[open] summary::after {
  content: "−";
}

.faq p {
  margin: 12px 0 8px;
  color: var(--mute);
  font-size: 17px;
  line-height: 1.6;
  max-width: 760px;
}

.contact {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: start;
}

.contact-title {
  font-size: clamp(44px, 7vw, 104px);
}

.contact-title span {
  color: var(--gold);
}

.phone-lg {
  display: inline-block;
  margin-top: 32px;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.03em;
  border-bottom: 1px solid var(--gold);
}

.form {
  position: relative;
  background: var(--panel);
  border: 1px solid rgba(236, 231, 220, 0.18);
  padding: 28px;
  display: grid;
  gap: 16px;
}

.form label {
  display: grid;
  gap: 8px;
}

.form label span {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
}

.form input {
  width: 100%;
  min-height: 52px;
  padding: 0 16px;
  border: 1px solid rgba(236, 231, 220, 0.25);
  background: var(--bg);
  color: var(--ink);
  font: inherit;
  font-size: 16px;
}

.form input:focus {
  outline: 1px solid var(--gold);
  border-color: var(--gold);
}

.hp {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.form-note {
  margin: 0;
  color: var(--mute);
  font-size: 13px;
}

.form-status {
  margin: 0;
  min-height: 1.4em;
  font-size: 14px;
  font-weight: 600;
}

.form-status.ok {
  color: var(--ok);
}

.form-status.err {
  color: var(--err);
}

.footer {
  padding-top: 28px;
  padding-bottom: 28px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}

@media (prefers-reduced-motion: reduce) {
  .brain-img {
    animation: none !important;
  }
}

@media (max-width: 900px) {
  .wrap {
    padding: 0 24px;
  }

  .sec {
    padding: 80px 0;
  }

  .hero,
  .grid-4,
  .grid-3,
  .mock-grid,
  .team,
  .contact,
  .service {
    grid-template-columns: 1fr;
  }

  .brain-wrap {
    order: -1;
    min-height: 340px;
    padding-top: 12px;
  }

  .mock-row {
    grid-template-columns: 1fr 1fr;
  }

  .nav-actions .phone {
    display: none;
  }
}