:root {
  --black: #0d0d0f;
  --dark: #1c1c1e;
  --mid: #3a3a3c;
  --cream: #e6e2d9;
  --gold: #c9a063;
  --gold-lt: #e2bb80;
  --lime: #baff00;
  --white: #f5f4f1;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --radius: 8px;
  --wrap: 1180px;
  --font-body: "Inter", Arial, sans-serif;
  --font-display: "Montserrat", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--black);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: clamp(1.55, 1.6vw, 1.75);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background:
    linear-gradient(rgba(186, 255, 0, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(186, 255, 0, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 78% 12%, rgba(201, 160, 99, 0.16), transparent 26%),
    var(--black);
  background-size: 52px 52px, 52px 52px, auto, auto;
  animation: gridMove 18s linear infinite;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

.wrap {
  width: min(calc(100% - 40px), var(--wrap));
  margin: 0 auto;
}

.section {
  padding: clamp(72px, 9vw, 128px) 0;
}

.gold {
  color: var(--lime);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold-lt);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.site-header {
  position: fixed;
  top: 0;
  z-index: 20;
  width: 100%;
  transition: background 0.25s ease, border-color 0.25s ease;
}

.site-header.scrolled {
  border-bottom: 1px solid rgba(230, 226, 217, 0.1);
  background: rgba(13, 13, 15, 0.78);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 28px;
  align-items: center;
  min-height: 84px;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
}

.brand img {
  width: clamp(138px, 13vw, 184px);
  height: auto;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--gold);
  border-radius: 50%;
  color: var(--white);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 900;
}

.brand strong,
.brand small {
  display: block;
  letter-spacing: 0.16em;
  line-height: 1.1;
}

.brand strong {
  color: var(--white);
  font-family: var(--font-display);
  font-size: 15px;
}

.brand small {
  margin-top: 5px;
  color: var(--cream);
  font-size: 9px;
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: clamp(18px, 3vw, 44px);
  color: var(--white);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.main-nav a {
  opacity: 0.82;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--lime);
  opacity: 1;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--lime);
  background: var(--lime);
  color: #111;
  padding: 0 28px;
  font-weight: 700;
  line-height: 1.1;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.button:hover,
.button:focus-visible {
  background: var(--gold-lt);
  color: var(--black);
  transform: translateY(-2px);
}

.button.ghost {
  background: transparent;
  color: var(--white);
}

.button.ghost:hover,
.button.ghost:focus-visible {
  background: rgba(186, 255, 0, 0.08);
  color: var(--lime);
}

.menu-toggle {
  display: none;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 120px;
  background:
    linear-gradient(90deg, rgba(13, 13, 15, 0.96), rgba(13, 13, 15, 0.48)),
    url("../assets/brandbook-logo.jpg") center / cover no-repeat;
}

.hero-grid,
.about-grid,
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.82fr);
  gap: clamp(36px, 7vw, 88px);
  align-items: center;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--white);
  font-family: var(--font-display);
  letter-spacing: 0;
  line-height: 1.04;
}

h1 {
  max-width: 830px;
  font-size: clamp(42px, 7vw, 92px);
  font-weight: 900;
  text-transform: uppercase;
}

h2 {
  max-width: 820px;
  font-size: clamp(30px, 4.2vw, 56px);
  font-weight: 800;
}

h3 {
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 800;
}

.hero-text {
  max-width: 620px;
  margin: 26px 0 0;
  color: var(--cream);
  font-size: clamp(17px, 1.6vw, 20px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 34px;
}

.trust-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 18px;
  padding: 0;
  margin: 52px 0 0;
  list-style: none;
}

.trust-list li {
  border-left: 2px solid var(--lime);
  padding-left: 12px;
  color: var(--white);
  font-size: 13px;
  font-weight: 600;
}

.factory-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(230, 226, 217, 0.18);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.factory-card img {
  min-height: 420px;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.12) brightness(0.72);
}

.glow-cube {
  position: absolute;
  right: 13%;
  top: 26%;
  display: grid;
  width: clamp(140px, 18vw, 220px);
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--lime);
  background: rgba(186, 255, 0, 0.16);
  box-shadow: 0 0 50px rgba(186, 255, 0, 0.35), inset 0 0 30px rgba(186, 255, 0, 0.18);
  color: var(--lime);
  font-family: var(--font-display);
  font-size: clamp(34px, 5vw, 70px);
  font-weight: 900;
  animation: pulse 3.4s ease-in-out infinite;
}

.metrics {
  padding: 0 0 clamp(72px, 8vw, 108px);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
  border: 1px solid rgba(230, 226, 217, 0.16);
  border-radius: var(--radius);
  background: rgba(28, 28, 30, 0.74);
  box-shadow: var(--shadow);
}

.metrics-grid div {
  min-height: 150px;
  display: grid;
  align-content: center;
  padding: 28px;
  border-right: 1px solid rgba(230, 226, 217, 0.13);
}

.metrics-grid div:last-child {
  border-right: 0;
}

.metrics-grid strong {
  color: var(--lime);
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1;
}

.metrics-grid strong::after {
  content: "+";
}

.metrics-grid div:nth-child(3) strong::after {
  content: "x";
}

.metrics-grid div:nth-child(4) strong::after {
  content: "%";
}

.metrics-grid span {
  max-width: 170px;
  margin-top: 12px;
  color: var(--cream);
  font-size: 13px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: end;
  margin-bottom: 34px;
}

.service-grid,
.case-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.service-card,
.case-card,
.lead-form,
.contrast-panel {
  border: 1px solid rgba(230, 226, 217, 0.13);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(28, 28, 30, 0.96), rgba(13, 13, 15, 0.96));
  box-shadow: 0 14px 44px rgba(0, 0, 0, 0.22);
}

.service-card {
  position: relative;
  min-height: 270px;
  padding: 28px;
}

.service-card::after {
  position: absolute;
  left: 28px;
  bottom: 0;
  width: 0;
  height: 2px;
  content: "";
  background: var(--lime);
  transition: width 0.25s ease;
}

.service-card:hover::after {
  width: calc(100% - 56px);
}

.service-card span,
.process-line span,
.case-card span {
  color: var(--gold-lt);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.service-card h3 {
  margin-top: 62px;
}

.service-card p,
.process-line p,
.case-card p,
.contacts p {
  color: rgba(230, 226, 217, 0.78);
}

.process-line {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.process-line::before {
  position: absolute;
  top: 38px;
  left: 7%;
  right: 7%;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--lime), transparent);
}

.process-line article {
  position: relative;
  padding-top: 86px;
}

.process-line article::before {
  position: absolute;
  top: 10px;
  left: 0;
  width: 56px;
  height: 56px;
  border: 1px solid var(--lime);
  border-radius: 50%;
  content: "";
  background: var(--black);
}

.check-list,
.contact-list {
  padding: 0;
  margin: 30px 0 0;
  list-style: none;
}

.check-list li,
.contact-list li {
  position: relative;
  padding-left: 26px;
  margin: 12px 0;
}

.check-list li::before,
.contact-list li::before {
  position: absolute;
  left: 0;
  content: "✓";
  color: var(--lime);
}

.contrast-panel {
  min-height: 430px;
  display: grid;
  align-content: center;
  gap: 22px;
  padding: clamp(28px, 4vw, 52px);
}

.contrast-panel p {
  margin: 0;
  color: var(--white);
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 46px);
}

.contrast-panel strong {
  color: var(--lime);
}

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

.case-card {
  min-height: 250px;
  padding: 28px;
}

.case-card strong {
  display: block;
  margin: 36px 0 10px;
  color: var(--lime);
  font-family: var(--font-display);
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1;
}

.case-card a {
  display: inline-flex;
  margin-top: 24px;
  border-bottom: 1px solid var(--lime);
  color: var(--white);
  font-weight: 700;
}

.clients {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  justify-content: space-between;
  margin-top: 48px;
  color: rgba(245, 244, 241, 0.56);
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 28px);
  font-weight: 800;
}

.contacts {
  padding-top: 0;
}

.lead-form {
  display: grid;
  gap: 10px;
  padding: clamp(22px, 4vw, 40px);
}

.lead-form label {
  color: var(--white);
  font-size: 13px;
  font-weight: 600;
}

.lead-form input,
.lead-form select,
.lead-form textarea {
  width: 100%;
  border: 1px solid rgba(230, 226, 217, 0.18);
  border-radius: 0;
  background: rgba(13, 13, 15, 0.72);
  color: var(--white);
  padding: 13px 14px;
  outline: none;
}

.lead-form input:focus,
.lead-form select:focus,
.lead-form textarea:focus {
  border-color: var(--lime);
  box-shadow: 0 0 0 3px rgba(186, 255, 0, 0.12);
}

.lead-form button {
  margin-top: 8px;
}

.form-status {
  min-height: 24px;
  margin: 4px 0 0;
  color: var(--lime);
}

.site-footer {
  border-top: 1px solid rgba(230, 226, 217, 0.12);
  padding: 26px 0;
}

.footer-inner {
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
  color: rgba(230, 226, 217, 0.65);
  font-size: 13px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

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

@keyframes gridMove {
  from { background-position: 0 0, 0 0, 0 0, 0 0; }
  to { background-position: 52px 52px, 52px 52px, 0 0, 0 0; }
}

@keyframes pulse {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-8px) scale(1.03); }
}

@media (max-width: 1024px) {
  .header-inner {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .menu-toggle {
    display: grid;
    width: 48px;
    height: 48px;
    place-items: center;
    border: 1px solid rgba(230, 226, 217, 0.2);
    background: transparent;
    color: var(--white);
  }

  .menu-toggle span {
    width: 22px;
    height: 2px;
    background: currentColor;
  }

  .main-nav,
  .header-cta {
    display: none;
  }

  .main-nav.open {
    position: fixed;
    inset: 84px 0 auto;
    display: grid;
    gap: 0;
    justify-content: stretch;
    border-top: 1px solid rgba(230, 226, 217, 0.12);
    background: rgba(13, 13, 15, 0.96);
  }

  .main-nav.open a {
    padding: 22px 28px;
    border-bottom: 1px solid rgba(230, 226, 217, 0.1);
  }

  .hero-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .service-grid,
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-line,
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-line::before {
    display: none;
  }
}

@media (max-width: 768px) {
  .wrap {
    width: min(calc(100% - 28px), var(--wrap));
  }

  .hero {
    min-height: auto;
    padding-top: 120px;
  }

  .hero-actions,
  .footer-inner {
    align-items: stretch;
    flex-direction: column;
  }

  .trust-list,
  .service-grid,
  .metrics-grid,
  .process-line,
  .case-grid {
    grid-template-columns: 1fr;
  }

  .metrics-grid div {
    border-right: 0;
    border-bottom: 1px solid rgba(230, 226, 217, 0.13);
  }

  .metrics-grid div:last-child {
    border-bottom: 0;
  }

  .factory-card img {
    min-height: 300px;
  }
}

@media (max-width: 480px) {
  .brand strong {
    font-size: 13px;
  }

  .hero-actions .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}