:root {
  --color-ink: #324044;
  --color-muted: #81908a;
  --color-paper: #f8f8f4;
  --color-white: #ffffff;
  --color-leaf: #a7b895;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-sans);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  min-height: 72px;
  padding: 18px clamp(24px, 8vw, 120px);
  background: rgba(248, 248, 244, 0.94);
  border-bottom: 1px solid rgba(50, 64, 68, 0.08);
  backdrop-filter: blur(12px);
}

.brand-link {
  display: inline-flex;
  align-items: center;
  color: inherit;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: 165px;
  height: auto;
}

.primary-nav,
.language-nav {
  display: flex;
  align-items: center;
}

.primary-nav {
  justify-content: flex-end;
  gap: 28px;
  min-width: 0;
}

.language-nav {
  gap: 8px;
  font-size: 13px;
  color: var(--color-ink);
}

.primary-nav a,
.language-nav a {
  color: var(--color-ink);
  text-decoration: none;
}

.language-nav a {
  color: rgba(50, 64, 68, 0.52);
  font-weight: 500;
}

.language-nav [aria-current="page"] {
  color: var(--color-ink);
  font-weight: 800;
}

.primary-nav a {
  font-size: 13px;
  font-weight: 500;
}

.primary-nav a:hover,
.language-nav a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 16px;
  border: 1px solid var(--color-ink);
}

.nav-cta:hover {
  background: var(--color-ink);
  color: var(--color-white);
  text-decoration: none;
}

.hero {
  position: relative;
  min-height: calc(100svh - 72px);
  overflow: hidden;
  background: var(--color-paper);
}

.hero-media {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
}

.hero-media.is-loaded {
  opacity: 1;
}

.hero-media::after {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(248, 248, 244, 0.95) 0%, rgba(248, 248, 244, 0.82) 27%, rgba(248, 248, 244, 0.04) 58%),
    linear-gradient(180deg, rgba(248, 248, 244, 0.22) 0%, rgba(248, 248, 244, 0) 48%);
}

.hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center right;
}

@media (prefers-reduced-motion: reduce) {
  .hero-media {
    transition: none;
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(620px, calc(100% - 48px));
  padding: clamp(44px, 8vw, 112px) 0 clamp(96px, 12vw, 170px);
  margin-left: clamp(24px, 8.2vw, 118px);
}

.hero h1 {
  margin: 0;
  max-width: 620px;
  color: var(--color-ink);
  font-size: clamp(36px, 4vw, 58px);
  font-weight: 800;
  line-height: 1.08;
}

.hero p {
  max-width: 450px;
  margin: 28px 0 0;
  color: var(--color-muted);
  font-size: 16px;
  line-height: 1.55;
}

.hero p + p {
  margin-top: 16px;
}

.problem-area {
  scroll-margin-top: 72px;
  background: var(--color-paper);
}

.challenge-strip {
  position: relative;
  z-index: 2;
  padding: 34px clamp(24px, 8vw, 120px) 36px;
  background: #4e6a73;
  color: var(--color-paper);
}

.strip-kicker {
  margin: 0 0 22px;
  color: rgba(245, 245, 241, 0.58);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-align: center;
  text-transform: uppercase;
}

.challenge-list {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0;
  max-width: 1180px;
  padding: 0;
  margin: 0 auto;
  list-style: none;
}

.challenge-list li {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  min-height: 82px;
  padding: 6px 22px 2px;
  border-left: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--color-paper);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.42;
}

.challenge-list li:first-child {
  border-left: 0;
}

.challenge-number {
  display: block;
  color: rgba(245, 245, 241, 0.58);
  font-size: 12px;
  font-weight: 500;
}

.challenge-label {
  display: block;
}

.operator-problem {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  align-items: center;
  gap: clamp(48px, 7vw, 110px);
  padding: clamp(56px, 6vw, 76px) clamp(24px, 8vw, 120px);
  background: var(--color-paper);
}

.operator-copy {
  max-width: 640px;
}

.operator-copy h2 {
  margin: 0;
  max-width: 640px;
  color: var(--color-ink);
  font-size: clamp(36px, 3.3vw, 52px);
  font-weight: 800;
  line-height: 1.08;
}

.operator-copy p {
  max-width: 543px;
  margin: 36px 0 0;
  color: var(--color-muted);
  font-size: 16px;
  line-height: 1.55;
}

.operator-copy p + p {
  margin-top: 16px;
}

.operator-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 360px;
}

.operator-visual img {
  display: block;
  width: min(100%, 620px);
  height: auto;
}

.origin-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 700px;
  background: var(--color-ink);
  scroll-margin-top: 72px;
}

.origin-image {
  min-height: 700px;
  overflow: hidden;
}

.origin-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.origin-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(56px, 7vw, 80px) clamp(44px, 7vw, 100px) clamp(56px, 7vw, 80px) clamp(44px, 6vw, 80px);
  color: var(--color-white);
}

.origin-copy h2 {
  margin: 0 0 32px;
  color: var(--color-white);
  font-size: clamp(36px, 3.3vw, 52px);
  font-weight: 800;
  line-height: 1.08;
}

.origin-copy p {
  margin: 0;
  color: #c8d4d7;
  font-size: 16px;
  line-height: 1.55;
}

.origin-copy p + p {
  margin-top: 24px;
}

.interest-section {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(420px, 1fr);
  gap: clamp(48px, 6vw, 80px);
  align-items: start;
  padding: clamp(72px, 8vw, 96px) clamp(24px, 8vw, 120px);
  background: var(--color-paper);
  scroll-margin-top: 72px;
}

.interest-copy {
  max-width: 520px;
}

.interest-copy h2 {
  margin: 0 0 24px;
  color: var(--color-ink);
  font-size: clamp(36px, 3.3vw, 52px);
  font-weight: 800;
  line-height: 1.08;
}

.interest-copy p {
  margin: 0;
  color: var(--color-muted);
  font-size: 16px;
  line-height: 1.55;
}

.interest-copy p + p {
  margin-top: 20px;
}

.interest-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  padding: 32px;
  background: var(--color-white);
  border: 1px solid #e5e7eb;
  box-shadow: 0 10px 24px rgba(50, 64, 68, 0.08);
}

.interest-form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.interest-form span {
  color: var(--color-ink);
  font-size: 13px;
  font-weight: 700;
}

.interest-form em {
  color: var(--color-muted);
  font-style: normal;
  font-weight: 600;
}

.interest-form input,
.interest-form textarea {
  width: 100%;
  border: 1px solid #e5e7eb;
  background: var(--color-paper);
  color: var(--color-ink);
  font: inherit;
  font-size: 14px;
}

.interest-form input {
  height: 48px;
  padding: 0 14px;
}

.interest-form textarea {
  min-height: 140px;
  resize: vertical;
  padding: 12px 14px;
  line-height: 1.45;
}

.interest-form input::placeholder,
.interest-form textarea::placeholder {
  color: rgba(129, 144, 138, 0.8);
}

.interest-form input:focus,
.interest-form textarea:focus {
  outline: 2px solid rgba(78, 106, 115, 0.35);
  outline-offset: 2px;
  border-color: #4e6a73;
}

.interest-form button {
  min-height: 56px;
  border: 0;
  background: var(--color-ink);
  color: var(--color-white);
  cursor: pointer;
  font: inherit;
  font-size: 16px;
  font-weight: 800;
}

.interest-form button:hover {
  background: #243033;
}

.form-status {
  padding: 14px 16px;
  background: rgba(167, 184, 149, 0.18);
  border: 1px solid rgba(78, 106, 115, 0.28);
  color: var(--color-ink);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.45;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 48px;
  min-height: 260px;
  padding: 64px clamp(24px, 8vw, 100px);
  background: #202928;
  color: var(--color-white);
}

.footer-brand {
  display: inline-flex;
  width: fit-content;
}

.footer-brand img {
  display: block;
  width: 165px;
  height: auto;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 180px;
  color: #c8d4d7;
  font-style: normal;
}

.footer-contact span {
  color: var(--color-white);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.4px;
}

.footer-contact a,
.footer-contact p {
  margin: 0;
  color: #c8d4d7;
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
}

.footer-contact a:hover {
  color: var(--color-white);
  text-decoration: underline;
  text-underline-offset: 4px;
}

@media (max-width: 760px) {
  .site-header {
    grid-template-columns: 1fr auto;
    gap: 14px 18px;
    padding: 14px 20px;
  }

  .brand-logo {
    width: 140px;
  }

  .primary-nav {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: auto auto minmax(0, 1fr);
    justify-content: stretch;
    gap: 14px;
    padding-bottom: 2px;
  }

  .primary-nav a {
    white-space: nowrap;
    font-size: 12px;
  }

  .primary-nav .nav-cta {
    justify-self: end;
    min-height: 36px;
    padding: 0 12px;
  }

  .hero {
    min-height: auto;
    display: flex;
    flex-direction: column-reverse;
  }

  .hero-media {
    position: relative;
    height: 56svh;
    min-height: 360px;
  }

  .hero-media::after {
    background: linear-gradient(180deg, rgba(248, 248, 244, 0) 50%, rgba(248, 248, 244, 0.9) 100%);
  }

  .hero-media img {
    object-position: 62% center;
  }

  .hero-content {
    width: auto;
    padding: 48px 20px 36px;
    margin-left: 0;
    background: var(--color-paper);
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero p {
    margin-top: 22px;
  }

  .challenge-strip {
    padding: 30px 20px 34px;
  }

  .strip-kicker {
    margin-bottom: 22px;
    text-align: left;
  }

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

  .challenge-list li {
    min-height: 92px;
    padding: 14px 16px 14px 0;
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
  }

  .operator-problem {
    grid-template-columns: 1fr;
    gap: 34px;
    padding: 56px 20px;
  }

  .operator-copy h2 {
    font-size: 34px;
  }

  .operator-copy p {
    margin-top: 24px;
  }

  .operator-visual {
    min-height: auto;
  }

  .origin-section {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .problem-area,
  .origin-section,
  .interest-section {
    scroll-margin-top: 180px;
  }

  .origin-image {
    min-height: 360px;
  }

  .origin-copy {
    padding: 48px 20px 56px;
  }

  .origin-copy h2 {
    font-size: 34px;
  }

  .interest-section {
    grid-template-columns: 1fr;
    gap: 34px;
    padding: 56px 20px;
  }

  .interest-copy h2 {
    font-size: 34px;
  }

  .interest-form {
    padding: 22px;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 42px;
    min-height: 0;
    padding: 52px 20px;
  }

  .footer-brand img {
    width: 140px;
  }
}