:root {
  color: #172026;
  background: #f4f2ef;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
}

button,
input,
select {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(18px, 4vw, 56px);
  background: rgba(16, 31, 38, 0.88);
  color: #ffffff;
  backdrop-filter: blur(16px);
}

.brand,
.nav-links,
.hero-actions,
.trust-strip,
.check-list li,
.download-state,
.site-footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  color: inherit;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: #ffffff;
  padding: 4px;
}

.nav-links {
  gap: clamp(12px, 3vw, 26px);
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a,
.site-footer a {
  color: inherit;
}

.nav-links a {
  text-decoration: none;
  font-size: 14px;
  color: #d9e5e2;
}

.hero {
  min-height: 88vh;
  display: grid;
  align-items: end;
  padding: 132px clamp(18px, 5vw, 72px) 72px;
  color: #ffffff;
  background:
    linear-gradient(90deg, rgba(12, 25, 31, 0.93) 0%, rgba(12, 25, 31, 0.72) 43%, rgba(12, 25, 31, 0.16) 100%),
    url("https://images.pexels.com/photos/5668789/pexels-photo-5668789.jpeg?auto=compress&cs=tinysrgb&w=1800") center / cover;
}

.hero-copy {
  width: min(720px, 100%);
}

.eyebrow {
  margin: 0 0 12px;
  color: #c78547;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: clamp(44px, 7vw, 82px);
  line-height: 0.98;
  letter-spacing: 0;
  max-width: 820px;
}

h2 {
  color: #172026;
  font-size: clamp(30px, 4.2vw, 54px);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  color: #172026;
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: 0;
}

.hero-copy > p:not(.eyebrow),
.section-heading,
.registration-copy > p,
.photo-band p,
.download-panel p,
.site-footer,
.capability-grid p {
  line-height: 1.65;
}

.hero-copy > p:not(.eyebrow) {
  max-width: 640px;
  margin-top: 22px;
  color: #e5eeec;
  font-size: 20px;
}

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

.primary-button,
.secondary-button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 12px 18px;
  text-decoration: none;
  font-weight: 800;
  line-height: 1.1;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.primary-button {
  background: #0f766e;
  color: #ffffff;
  box-shadow: 0 16px 36px rgba(15, 118, 110, 0.3);
}

.secondary-button {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.12);
}

.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-1px);
}

.trust-strip {
  justify-content: center;
  gap: 0;
  padding: 0 clamp(18px, 4vw, 56px);
  background: #ffffff;
  border-bottom: 1px solid #ded9d1;
}

.trust-strip div {
  width: min(33.333%, 380px);
  min-height: 112px;
  padding: 22px 28px;
  border-left: 1px solid #ded9d1;
}

.trust-strip div:last-child {
  border-right: 1px solid #ded9d1;
}

.trust-strip strong,
.trust-strip span {
  display: block;
}

.trust-strip strong {
  font-size: 18px;
}

.trust-strip span {
  margin-top: 6px;
  color: #626d70;
  font-size: 14px;
  line-height: 1.45;
}

.section {
  padding: clamp(72px, 9vw, 118px) clamp(18px, 5vw, 72px);
}

.intro-section {
  background: #f4f2ef;
}

.section-heading {
  width: min(850px, 100%);
  margin-bottom: 38px;
}

.section-heading h2 {
  max-width: 780px;
}

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

.capability-grid article {
  min-height: 270px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 16px;
  padding: 26px;
  background: #ffffff;
  border: 1px solid #ded9d1;
  border-radius: 8px;
}

.feature-number {
  color: #0f766e;
  font-weight: 900;
}

.capability-grid p,
.registration-copy > p,
.photo-band p,
.download-panel p {
  color: #5c686b;
}

.photo-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
  min-height: 520px;
  background: #14242b;
  color: #ffffff;
}

.photo-band img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
}

.photo-band div {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(36px, 6vw, 70px);
}

.photo-band h2,
.download-panel h2 {
  color: inherit;
}

.photo-band p:not(.eyebrow) {
  margin-top: 18px;
  color: #d6e0dd;
}

.registration-section {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(320px, 1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
  background: #ffffff;
}

.registration-copy {
  position: sticky;
  top: 104px;
}

.registration-copy > p {
  margin-top: 18px;
  max-width: 560px;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  gap: 10px;
  color: #28353a;
}

.check-list li::before {
  content: "";
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #bf6f37;
  box-shadow: 0 0 0 5px rgba(191, 111, 55, 0.13);
}

.registration-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: clamp(20px, 4vw, 34px);
  background: #eef7f5;
  border: 1px solid #cfe5e0;
  border-radius: 8px;
}

.field-group {
  display: grid;
  gap: 8px;
}

.field-wide {
  grid-column: 1 / -1;
}

label {
  color: #243239;
  font-size: 14px;
  font-weight: 800;
}

input,
select {
  width: 100%;
  height: 48px;
  border: 1px solid #bfd0cf;
  border-radius: 8px;
  background: #ffffff;
  color: #172026;
  padding: 0 13px;
  outline: 0;
}

input:focus,
select:focus {
  border-color: #0f766e;
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.14);
}

.error-message {
  display: none;
  color: #9b2d20;
  font-size: 12px;
}

.field-group.invalid input,
.field-group.invalid select {
  border-color: #b34032;
}

.field-group.invalid .error-message {
  display: block;
}

.consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: #38474c;
  font-weight: 600;
  line-height: 1.5;
}

.consent input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  flex: 0 0 auto;
}

.form-status {
  grid-column: 1 / -1;
  min-height: 22px;
  color: #0f766e;
  font-weight: 800;
}

.download-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.82fr);
  background: #1e2930;
  color: #ffffff;
}

.download-section img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
}

.download-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(36px, 6vw, 72px);
}

.download-panel p:not(.eyebrow) {
  margin-top: 18px;
  color: #dae6e3;
}

.download-panel code {
  color: #ffe2c2;
}

.download-state {
  width: fit-content;
  min-height: 38px;
  margin-top: 24px;
  padding: 8px 12px;
  border-radius: 8px;
  color: #ffe2c2;
  background: rgba(199, 133, 71, 0.16);
  border: 1px solid rgba(199, 133, 71, 0.35);
  font-weight: 800;
}

#downloadButton {
  width: fit-content;
  margin-top: 14px;
}

#downloadButton.disabled {
  pointer-events: none;
  opacity: 0.62;
  background: #6f7c80;
  box-shadow: none;
}

.site-footer {
  justify-content: space-between;
  gap: 18px;
  padding: 26px clamp(18px, 4vw, 56px);
  background: #101f26;
  color: #dce8e5;
  flex-wrap: wrap;
}

.site-footer strong,
.site-footer span {
  display: block;
}

.site-footer span,
.site-footer p {
  color: #aebcba;
  font-size: 13px;
}

@media (max-width: 920px) {
  .site-header {
    position: absolute;
  }

  .hero {
    min-height: 760px;
    background:
      linear-gradient(180deg, rgba(12, 25, 31, 0.93) 0%, rgba(12, 25, 31, 0.72) 60%, rgba(12, 25, 31, 0.52) 100%),
      url("https://images.pexels.com/photos/5668789/pexels-photo-5668789.jpeg?auto=compress&cs=tinysrgb&w=1100") center / cover;
  }

  .trust-strip,
  .photo-band,
  .registration-section,
  .download-section {
    display: grid;
    grid-template-columns: 1fr;
  }

  .trust-strip {
    padding: 0;
  }

  .trust-strip div {
    width: 100%;
    min-height: auto;
    border-left: 0;
    border-right: 0;
    border-bottom: 1px solid #ded9d1;
  }

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

  .capability-grid article {
    min-height: 220px;
  }

  .registration-copy {
    position: static;
  }

  .download-section img {
    order: 2;
    min-height: 360px;
  }
}

@media (max-width: 620px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .hero {
    min-height: 720px;
    padding-top: 170px;
  }

  .hero-copy > p:not(.eyebrow) {
    font-size: 17px;
  }

  .primary-button,
  .secondary-button {
    width: 100%;
  }

  .registration-form {
    grid-template-columns: 1fr;
  }

  #downloadButton {
    width: 100%;
  }
}