:root {
  --ink: #10231c;
  --ink-soft: #3a5248;
  --paper: #f3f7f4;
  --mist: #d8e6df;
  --turf: #1f6b4a;
  --turf-deep: #0f3d2c;
  --lime: #b7e36a;
  --line: rgba(16, 35, 28, 0.12);
  --white: #ffffff;
  --shadow-soft: 0 18px 50px rgba(15, 61, 44, 0.18);
  --font-display: "Syne", "Zen Kaku Gothic New", sans-serif;
  --font-body: "Zen Kaku Gothic New", "Hiragino Sans", sans-serif;
  --header-h: 4.5rem;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(183, 227, 106, 0.22), transparent 55%),
    radial-gradient(900px 500px at 100% 20%, rgba(31, 107, 74, 0.12), transparent 50%),
    linear-gradient(180deg, #eaf3ee 0%, var(--paper) 28%, #eef4f1 100%);
  overflow-x: hidden;
}

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

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: var(--white);
  border-radius: 0.4rem;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  height: var(--header-h);
  backdrop-filter: blur(10px);
  background: rgba(243, 247, 244, 0.72);
  border-bottom: 1px solid transparent;
  transition: background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.site-header.is-scrolled {
  background: rgba(243, 247, 244, 0.92);
  border-bottom-color: var(--line);
  box-shadow: 0 8px 24px rgba(16, 35, 28, 0.06);
}

.nav {
  width: min(1120px, calc(100% - 2.5rem));
  height: 100%;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav__brand {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 1rem;
}

.nav__links {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__links a {
  font-size: 0.92rem;
  font-weight: 500;
  opacity: 0.78;
  transition: opacity 0.2s ease;
}

.nav__links a:hover,
.nav__links a:focus-visible {
  opacity: 1;
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: end;
  color: var(--white);
  isolation: isolate;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.08);
  animation: hero-zoom 8s var(--ease-out) both;
}

.hero__shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(15, 61, 44, 0.35) 0%, rgba(15, 61, 44, 0.55) 42%, rgba(10, 28, 20, 0.88) 100%),
    linear-gradient(90deg, rgba(10, 28, 20, 0.55), transparent 55%);
}

.hero__content {
  width: min(1120px, calc(100% - 2.5rem));
  margin: 0 auto;
  padding: calc(var(--header-h) + 3rem) 0 4.5rem;
}

.hero__brand {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 8vw, 5.8rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: 0.02em;
}

.hero__headline {
  margin: 0 0 1rem;
  max-width: 14ch;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.4vw, 2.35rem);
  font-weight: 700;
  line-height: 1.3;
}

.hero__lead {
  margin: 0 0 2rem;
  max-width: 32rem;
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.86);
}

.hero__actions,
.contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.35rem;
  border: 1px solid transparent;
  border-radius: 0.45rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--lime);
  color: var(--turf-deep);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: #c9ef7d;
}

.btn--ghost {
  border-color: rgba(255, 255, 255, 0.45);
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.16);
}

.contact .btn--ghost {
  border-color: rgba(16, 35, 28, 0.25);
  color: var(--ink);
  background: transparent;
}

.contact .btn--ghost:hover,
.contact .btn--ghost:focus-visible {
  border-color: var(--turf);
  background: rgba(31, 107, 74, 0.08);
}

.section {
  width: min(1120px, calc(100% - 2.5rem));
  margin-inline: auto;
  padding: 5.5rem 0;
}

.section__intro {
  margin-bottom: 2.75rem;
}

.eyebrow {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--turf);
}

.section h2,
.about h2,
.feature h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 1.2;
}

.section h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

.section__lead {
  margin: 0.9rem 0 0;
  max-width: 36rem;
  color: var(--ink-soft);
}

.feature {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
}

.feature__visual {
  position: relative;
  min-height: 22rem;
  overflow: hidden;
  border-radius: 0.35rem;
  box-shadow: var(--shadow-soft);
}

.feature__visual img {
  width: 100%;
  height: 100%;
  min-height: 22rem;
  object-fit: cover;
}

.feature__visual::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 35%;
  background: linear-gradient(180deg, transparent, rgba(15, 61, 44, 0.35));
  pointer-events: none;
}

.feature__index {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--turf);
}

.feature h3 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin-bottom: 1rem;
}

.feature__summary {
  margin: 0 0 1.25rem;
  color: var(--ink-soft);
}

.feature__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.1rem;
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
  color: var(--ink);
  font-weight: 500;
}

.feature__meta li {
  position: relative;
  padding-left: 0.9rem;
}

.feature__meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 0.35rem;
  height: 0.35rem;
  border-radius: 50%;
  background: var(--turf);
}

.feature__stack {
  margin: 0 0 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 700;
  color: var(--turf-deep);
  border-bottom: 1px solid currentColor;
  padding-bottom: 0.15rem;
  transition: color 0.2s ease, gap 0.2s ease;
}

.text-link::after {
  content: "→";
  transition: transform 0.2s ease;
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--turf);
  gap: 0.7rem;
}

.text-link:hover::after,
.text-link:focus-visible::after {
  transform: translateX(3px);
}

.about__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: start;
}

.about p {
  color: var(--ink-soft);
}

.about__practices {
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--line);
}

.about__practices h3 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
}

.about__practices ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--ink-soft);
}

.about__practices li + li {
  margin-top: 0.55rem;
}

.stack__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  margin: 2rem 0 0;
  padding: 1.5rem 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.stack__list li {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--turf-deep);
}

.contact {
  padding-bottom: 6rem;
}

.contact .section__lead {
  margin-bottom: 1.75rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 1.25rem 2rem;
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.reveal {
  transform: translateY(28px);
  transition: transform 0.8s var(--ease-out), opacity 0.8s var(--ease-out);
  opacity: 0.92;
}

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

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes hero-zoom {
  from {
    transform: scale(1.14);
  }
  to {
    transform: scale(1.08);
  }
}

@media (max-width: 900px) {
  .feature,
  .about__grid {
    grid-template-columns: 1fr;
  }

  .feature__visual,
  .feature__visual img {
    min-height: 16rem;
  }
}

@media (max-width: 640px) {
  :root {
    --header-h: 4rem;
  }

  .nav {
    width: calc(100% - 1.5rem);
  }

  .nav__links {
    gap: 0.85rem;
  }

  .nav__links a {
    font-size: 0.85rem;
  }

  .hero__content,
  .section {
    width: calc(100% - 1.5rem);
  }

  .hero__content {
    padding-bottom: 3.25rem;
  }

  .section {
    padding: 4rem 0;
  }

  .btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero__image,
  .hero__brand,
  .hero__headline,
  .hero__lead,
  .hero__actions,
  .reveal {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}