:root {
  --bg: #0b1020;
  --bg-soft: #121932;
  --panel: #18213a;
  --panel-light: #f5f6fa;
  --text: #f4f7fb;
  --muted: #b8c0d0;
  --ink: #14192a;
  --ink-soft: #566172;
  --line: rgba(255, 255, 255, 0.14);
  --line-dark: rgba(21, 32, 37, 0.14);
  --purple: #2d1b78;
  --purple-soft: #4431a0;
  --teal: #178b91;
  --teal-dark: #0f6f75;
  --amber: #d4a129;
  --white: #ffffff;
  --radius: 8px;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
  line-height: 1.55;
}

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

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  padding: 10px clamp(18px, 4vw, 54px);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(21, 32, 37, 0.1);
  box-shadow: 0 12px 34px rgba(11, 16, 32, 0.12);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: max-content;
  min-height: 56px;
  font-weight: 700;
}

.brand-logo {
  display: block;
  width: auto;
  height: clamp(42px, 4.8vw, 52px);
}

.brand-symbol {
  display: block;
  height: clamp(42px, 4.6vw, 48px);
  width: auto;
  border-radius: 7px;
}

.brand-name {
  display: grid;
  gap: 0;
  line-height: 1;
}

.brand-main {
  color: var(--purple);
  font-size: clamp(1.55rem, 2.6vw, 2.05rem);
  font-weight: 850;
  letter-spacing: 0;
}

.brand-sub {
  margin-top: 2px;
  color: #445064;
  font-size: clamp(0.64rem, 1vw, 0.82rem);
  font-weight: 750;
  letter-spacing: 2.5px;
  text-transform: uppercase;
}

.nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: clamp(12px, 3vw, 30px);
  color: #445064;
  font-size: 0.95rem;
  font-weight: 650;
}

.nav li {
  list-style: none;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--purple);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid rgba(43, 22, 118, 0.18);
  border-radius: 6px;
  background: var(--purple);
  color: var(--white);
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(43, 22, 118, 0.18);
}

.header-cta:hover,
.header-cta:focus-visible {
  background: var(--teal-dark);
  border-color: rgba(15, 111, 117, 0.26);
}

.sticky-cta {
  position: fixed;
  right: clamp(18px, 3vw, 34px);
  bottom: 22px;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid rgba(212, 161, 41, 0.42);
  border-radius: 6px;
  color: #0b1020;
  background: var(--amber);
  font-weight: 850;
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.24);
}

.sticky-cta:hover,
.sticky-cta:focus-visible {
  transform: translateY(-1px);
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: center;
  overflow: hidden;
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media {
  background-image: url("../img/gte-hero.png");
  background-size: cover;
  background-position: center;
  filter: saturate(0.95) contrast(1.04);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(7, 11, 28, 0.97) 0%, rgba(15, 18, 45, 0.78) 44%, rgba(15, 18, 45, 0.24) 100%),
    linear-gradient(0deg, rgba(11, 16, 32, 0.95) 0%, rgba(11, 16, 32, 0) 42%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(1040px, calc(100% - 36px));
  margin: 0 auto;
  padding: 92px 0 30px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--amber);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 900px;
  margin: 0;
  color: var(--white);
  font-size: clamp(2.05rem, 5.35vw, 4.25rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  color: inherit;
  font-size: clamp(2rem, 4.3vw, 3.8rem);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.08rem;
  line-height: 1.25;
}

.hero-copy {
  max-width: 780px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.16rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-weight: 800;
  cursor: pointer;
}

.button.primary {
  color: #0b1020;
  background: var(--amber);
}

.button.secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(23, 139, 145, 0.16);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.hero-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  max-width: 900px;
  margin-top: 22px;
}

.hero-stack span {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(12, 17, 34, 0.64);
  font-size: 0.84rem;
}

.section {
  padding: clamp(66px, 9vw, 116px) clamp(18px, 4vw, 54px);
}

.section-inner {
  width: min(1160px, 100%);
  margin: 0 auto;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(34px, 7vw, 88px);
}

.problem {
  background: var(--bg);
}

.risk-list {
  color: var(--muted);
  font-size: 1.05rem;
}

.risk-list p {
  margin-top: 0;
}

ul {
  padding-left: 20px;
}

li + li {
  margin-top: 8px;
}

.value,
.proof {
  background: var(--panel-light);
  color: var(--ink);
}

.value h2 {
  max-width: 1000px;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 38px;
}

.value-grid article,
.case-grid article,
.proof-grid div {
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  padding: 24px;
  background: var(--white);
}

.number {
  display: block;
  margin-bottom: 28px;
  color: var(--purple-soft);
  font-weight: 800;
}

.value-grid p,
.case-grid p,
.proof-grid p {
  margin: 0;
  color: var(--ink-soft);
}

.services {
  background: #111830;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 34px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.service-card {
  min-height: 350px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(23, 139, 145, 0.055));
}

.service-card h3 {
  color: var(--white);
}

.service-card ul {
  margin: 22px 0 0;
  color: var(--muted);
}

.diagnostic {
  background: #0d1429;
}

.diagnostic-note {
  max-width: 720px;
  margin: 20px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--amber);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.055);
}

.environments {
  background: #0d1429;
}

.environment-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.environment-grid article {
  min-height: 230px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(45, 27, 120, 0.26), rgba(23, 139, 145, 0.08));
}

.environment-grid h3 {
  color: var(--white);
}

.environment-grid p {
  margin: 0;
  color: var(--muted);
}

.projects {
  background: var(--panel-light);
  color: var(--ink);
}

.projects-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(30px, 7vw, 82px);
  align-items: start;
}

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

.project-flow {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.project-flow article {
  min-height: 230px;
  padding: 24px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  background: var(--white);
}

.project-flow span {
  display: block;
  margin-bottom: 24px;
  color: var(--purple-soft);
  font-weight: 800;
}

.project-flow p {
  margin: 0;
  color: var(--ink-soft);
}

.diagnostic-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.75fr);
  gap: clamp(28px, 6vw, 70px);
  align-items: center;
}

.lead {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.diagnostic-panel {
  padding: 26px;
  border: 1px solid rgba(212, 161, 41, 0.32);
  border-radius: var(--radius);
  background: rgba(45, 27, 120, 0.22);
  box-shadow: var(--shadow);
}

.check-grid {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.check-grid span {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.05);
}

.engagement-model {
  background:
    linear-gradient(180deg, #f5f6fa 0%, #ffffff 58%, #eef3f4 100%);
  color: var(--ink);
}

.engagement-model .section-heading {
  max-width: 920px;
}

.model-flow {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 36px;
}

.model-flow::before {
  content: "";
  position: absolute;
  top: 46px;
  left: 13%;
  right: 13%;
  height: 2px;
  background: linear-gradient(90deg, rgba(45, 27, 120, 0.16), rgba(23, 139, 145, 0.5), rgba(45, 27, 120, 0.16));
}

.model-card {
  position: relative;
  display: grid;
  gap: 18px;
  min-height: 360px;
  padding: 24px;
  border: 1px solid rgba(21, 32, 37, 0.12);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 18px 42px rgba(11, 16, 32, 0.08);
}

.model-card.is-accent {
  border-color: rgba(23, 139, 145, 0.35);
  background:
    linear-gradient(180deg, rgba(23, 139, 145, 0.08), rgba(255, 255, 255, 0.98));
}

.model-marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  color: var(--white);
  background: var(--purple);
  font-weight: 850;
  box-shadow: 0 14px 28px rgba(45, 27, 120, 0.2);
}

.model-card.is-accent .model-marker {
  background: var(--teal-dark);
}

.model-body {
  display: grid;
  align-content: start;
}

.model-label {
  margin: 0 0 10px;
  color: var(--teal-dark);
  font-size: 0.76rem;
  font-weight: 850;
  text-transform: uppercase;
}

.model-body h3 {
  margin-bottom: 14px;
  color: var(--ink);
  font-size: clamp(1.28rem, 2vw, 1.7rem);
}

.model-body p {
  margin: 0;
  color: var(--ink-soft);
}

.model-footer {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 18px;
  padding: 18px 20px;
  border: 1px solid rgba(45, 27, 120, 0.14);
  border-radius: var(--radius);
  background: rgba(45, 27, 120, 0.055);
}

.model-footer strong {
  color: var(--purple);
  white-space: nowrap;
}

.model-footer span {
  color: var(--ink-soft);
}

.cases {
  background: var(--panel-light);
  color: var(--ink);
}

.delivery {
  background: #111830;
}

.delivery-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.delivery-grid article {
  min-height: 220px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.055);
}

.delivery-grid p {
  margin: 0;
  color: var(--muted);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.case-grid article {
  min-height: 210px;
}

.proof-grid {
  display: grid;
  gap: 14px;
}

.contact {
  background:
    linear-gradient(180deg, rgba(13, 20, 26, 0.88), rgba(13, 20, 26, 0.96)),
    url("../img/gte-hero.png");
  background-size: cover;
  background-position: center;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.75fr);
  gap: clamp(30px, 7vw, 88px);
  align-items: start;
}

.contact-note {
  display: grid;
  gap: 4px;
  max-width: 470px;
  margin-top: 34px;
  padding: 18px;
  border-left: 3px solid var(--amber);
  background: rgba(255, 255, 255, 0.06);
}

.contact-note span {
  color: var(--muted);
}

.contact-form {
  display: grid;
  gap: 14px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(12, 17, 22, 0.8);
  box-shadow: var(--shadow);
}

.contact-form label,
.contact-form fieldset {
  display: grid;
  gap: 7px;
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.contact-form select option {
  color: var(--ink);
  background: var(--white);
}

.contact-form textarea {
  resize: vertical;
}

.contact-form fieldset {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 14px;
}

.contact-form legend {
  padding: 0 6px;
  color: var(--white);
}

.contact-form fieldset label {
  display: flex;
  align-items: center;
  gap: 9px;
}

.contact-form input[type="checkbox"] {
  width: 16px;
  min-height: 16px;
  accent-color: var(--purple-soft);
}

.form-button {
  width: 100%;
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: var(--amber);
  font-weight: 700;
}

.form-status.is-error {
  color: var(--amber);
}

.site-footer {
  padding: 24px clamp(18px, 4vw, 54px);
  background: #080d11;
  color: var(--muted);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: min(1160px, 100%);
  margin: 0 auto;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  min-width: max-content;
}

.footer-logo {
  display: block;
  width: auto;
  height: 54px;
}

.footer-symbol {
  display: block;
  width: auto;
  height: 42px;
}

.footer-brand span {
  display: grid;
  line-height: 1;
}

.footer-brand strong {
  color: var(--text);
  font-size: 1.4rem;
  letter-spacing: 0;
}

.footer-brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 750;
  letter-spacing: 2px;
  text-transform: uppercase;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav {
    display: none;
  }

  .two-column,
  .diagnostic-layout,
  .projects-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .value-grid,
  .case-grid,
  .environment-grid,
  .model-flow {
    grid-template-columns: 1fr;
  }

  .model-flow::before {
    top: 26px;
    bottom: 26px;
    left: 50px;
    right: auto;
    width: 2px;
    height: auto;
    background: linear-gradient(180deg, rgba(45, 27, 120, 0.16), rgba(23, 139, 145, 0.5), rgba(45, 27, 120, 0.16));
  }

  .model-card {
    min-height: auto;
  }

  .model-footer {
    display: grid;
  }

  .model-footer strong {
    white-space: normal;
  }

  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .delivery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .project-flow {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 12px 14px;
    gap: 12px;
  }

  .brand-symbol {
    height: 40px;
  }

  .brand-logo {
    height: 40px;
  }

  .brand-main {
    font-size: 1.38rem;
  }

  .brand-sub {
    font-size: 0.58rem;
    letter-spacing: 1.8px;
  }

  .header-cta {
    min-height: 38px;
    padding: 0 12px;
    font-size: 0.86rem;
  }

  .sticky-cta {
    right: 14px;
    bottom: 14px;
    left: 14px;
    width: auto;
    min-height: 46px;
  }

  .hero {
    min-height: 100svh;
  }

  .hero-content {
    width: min(100% - 28px, 980px);
    padding: 84px 0 24px;
  }

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

  .hero-stack {
    max-height: 112px;
    overflow: hidden;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .delivery-grid {
    grid-template-columns: 1fr;
  }

  .project-flow article {
    min-height: auto;
  }

  .service-card {
    min-height: auto;
  }

  .footer-inner {
    display: grid;
    padding-bottom: 54px;
  }
}