:root {
  --green-950: #0f241c;
  --green-900: #163828;
  --green-800: #1f4d36;
  --green-700: #2a5c42;
  --gold: #e8c96a;
  --gold-soft: rgba(232, 201, 106, 0.22);
  --ink: #1a2b24;
  --muted: #5c6f66;
  --paper: #f3f6f4;
  --white: #ffffff;
  --font-display: "Noto Serif SC", "Songti SC", serif;
  --font-body: "Source Sans 3", "PingFang SC", "Helvetica Neue", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --nav-h: 4.25rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

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

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

.site-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  background: linear-gradient(180deg, rgba(15, 36, 28, 0.72), rgba(15, 36, 28, 0));
  color: var(--white);
  transition: background 0.35s var(--ease), backdrop-filter 0.35s var(--ease);
}

.site-nav.is-solid {
  background: rgba(15, 36, 28, 0.92);
  backdrop-filter: blur(10px);
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.06em;
}

.nav-brand img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--gold-soft);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-links a {
  opacity: 0.88;
  transition: opacity 0.2s ease, color 0.2s ease;
}

.nav-links a:hover {
  opacity: 1;
  color: var(--gold);
}

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--white);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 55% at 70% 20%, rgba(232, 201, 106, 0.18), transparent 55%),
    radial-gradient(ellipse 60% 50% at 15% 80%, rgba(42, 92, 66, 0.55), transparent 50%),
    linear-gradient(165deg, #0f241c 0%, #163828 42%, #1f4d36 72%, #2a5c42 100%);
  transform: scale(1.04);
  animation: hero-drift 18s ease-in-out infinite alternate;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image:
    repeating-linear-gradient(
      -18deg,
      transparent 0 14px,
      rgba(255, 255, 255, 0.015) 14px 15px
    ),
    radial-gradient(circle at 30% 40%, rgba(255, 255, 255, 0.05), transparent 28%);
}

.hero-veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(15, 36, 28, 0.15) 0%,
    rgba(15, 36, 28, 0.35) 45%,
    rgba(15, 36, 28, 0.82) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(42rem, 100%);
  padding: calc(var(--nav-h) + 3rem) clamp(1.25rem, 4vw, 3rem) clamp(3.5rem, 8vh, 5.5rem);
}

.hero-brand {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 8vw, 4.4rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.05;
  color: var(--gold);
}

.hero-title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.8vw, 2.15rem);
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.35;
}

.hero-lead {
  margin: 0 0 2rem;
  max-width: 28rem;
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.86);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0 1.35rem;
  border: 1px solid transparent;
  border-radius: 2px;
  font-family: var(--font-body);
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: transform 0.25s var(--ease), background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

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

.btn-primary {
  background: var(--gold);
  color: var(--green-950);
}

.btn-primary:hover {
  background: #f0d687;
}

.section {
  padding: clamp(4rem, 10vh, 6.5rem) 0;
}

.section-inner {
  width: min(68rem, calc(100% - 2.5rem));
  margin: 0 auto;
}

.section-head {
  max-width: 36rem;
  margin-bottom: 2.5rem;
}

.section-head h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--green-900);
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

.services {
  background: var(--white);
}

.service-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.service-item {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1.25rem;
  padding: 1.6rem 0;
  border-top: 1px solid rgba(22, 56, 40, 0.12);
}

.service-item:last-child {
  border-bottom: 1px solid rgba(22, 56, 40, 0.12);
}

.service-index {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.service-item h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--green-800);
}

.service-item p {
  margin: 0;
  color: var(--muted);
  max-width: 38rem;
}

.about {
  background:
    linear-gradient(135deg, rgba(232, 201, 106, 0.08), transparent 40%),
    linear-gradient(180deg, #e8efe9 0%, var(--paper) 100%);
}

.about-grid {
  display: grid;
  gap: 1.5rem;
}

.about-copy {
  margin: 0;
  max-width: 40rem;
  font-size: 1.12rem;
  color: var(--ink);
}

.site-footer {
  padding: 1.5rem clamp(1.25rem, 4vw, 3rem);
  background: var(--green-950);
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.88rem;
  text-align: center;
}

.site-footer p {
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }

@keyframes hero-drift {
  from { transform: scale(1.02) translate3d(0, 0, 0); }
  to { transform: scale(1.06) translate3d(-1.2%, -0.8%, 0); }
}

@media (min-width: 768px) {
  .service-list {
    grid-template-columns: 1fr 1fr;
    gap: 0 2.5rem;
  }

  .service-item:nth-child(odd) {
    border-right: 1px solid rgba(22, 56, 40, 0.08);
    padding-right: 1.5rem;
  }
}

@media (max-width: 640px) {
  .nav-links {
    gap: 0.9rem;
    font-size: 0.88rem;
  }

  .hero-content {
    align-self: end;
  }

  .service-item {
    grid-template-columns: 3rem 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-bg { animation: none; }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .btn:hover { transform: none; }
}