:root {
  --ink: #0c1210;
  --ink-soft: #3a4540;
  --paper: #eef2ef;
  --paper-deep: #dfe6e1;
  --line: rgba(12, 18, 16, 0.12);
  --accent: #0f6b5c;
  --accent-bright: #17a089;
  --accent-soft: rgba(15, 107, 92, 0.12);
  --white: #f7faf8;
  --font-display: "Syne", sans-serif;
  --font-body: "Outfit", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 4.5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1200px 700px at 85% -10%, rgba(23, 160, 137, 0.18), transparent 55%),
    radial-gradient(900px 600px at -10% 20%, rgba(12, 18, 16, 0.06), transparent 50%),
    linear-gradient(180deg, #f4f7f5 0%, var(--paper) 40%, #e8eee9 100%);
  line-height: 1.55;
  overflow-x: hidden;
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  padding: 0 clamp(1.25rem, 4vw, 3.5rem);
  background: rgba(238, 242, 239, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(238, 242, 239, 0.9);
}

.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.06em;
}

.nav {
  display: none;
  align-items: center;
  gap: 2rem;
  font-size: 0.95rem;
  font-weight: 500;
}

.nav a:not(.nav-cta) {
  position: relative;
}

.nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 100%;
  height: 1.5px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.nav a:not(.nav-cta):hover::after {
  transform: scaleX(1);
}

.nav-cta {
  padding: 0.65rem 1.15rem;
  background: var(--ink);
  color: var(--white);
  border-radius: 2px;
  transition: background 0.25s ease, transform 0.25s var(--ease);
}

.nav-cta:hover {
  background: var(--accent);
  transform: translateY(-1px);
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 1.4rem;
  height: 2px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.2s ease;
}

.menu-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  z-index: 39;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 1.25rem 1.5rem;
  background: rgba(238, 242, 239, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.mobile-nav[hidden] {
  display: none;
}

.mobile-nav a {
  padding: 0.9rem 0.25rem;
  font-size: 1.15rem;
  font-weight: 600;
  font-family: var(--font-display);
  border-bottom: 1px solid var(--line);
}

@media (min-width: 860px) {
  .nav {
    display: flex;
  }

  .menu-toggle,
  .mobile-nav {
    display: none !important;
  }
}

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  align-items: end;
  padding:
    calc(var(--header-h) + 2rem)
    clamp(1.25rem, 4vw, 3.5rem)
    clamp(2.5rem, 6vw, 4.5rem);
  overflow: hidden;
}

.hero-visual {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-plane {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      115deg,
      rgba(238, 242, 239, 0.92) 0%,
      rgba(238, 242, 239, 0.55) 42%,
      rgba(15, 107, 92, 0.28) 100%
    ),
    linear-gradient(180deg, #1a2e2a 0%, #0f6b5c 45%, #17a089 100%);
  clip-path: polygon(38% 0, 100% 0, 100% 100%, 18% 100%);
  animation: plane-in 1.2s var(--ease) both;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(90deg, transparent 20%, black 55%);
  opacity: 0.55;
  animation: grid-drift 28s linear infinite;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
}

.hero-orb--a {
  width: min(42vw, 420px);
  height: min(42vw, 420px);
  right: 8%;
  top: 18%;
  background: radial-gradient(circle at 35% 35%, rgba(255, 255, 255, 0.45), rgba(23, 160, 137, 0.15) 55%, transparent 70%);
  animation: float-a 9s ease-in-out infinite;
}

.hero-orb--b {
  width: min(28vw, 260px);
  height: min(28vw, 260px);
  right: 28%;
  bottom: 12%;
  background: radial-gradient(circle at 40% 40%, rgba(12, 18, 16, 0.25), transparent 70%);
  animation: float-b 11s ease-in-out infinite;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 38rem;
}

.brand {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3.8rem, 14vw, 8.5rem);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--ink);
}

.hero h1 {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.45rem, 3.4vw, 2.15rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  max-width: 18ch;
}

.hero-lead {
  margin: 0 0 1.75rem;
  color: var(--ink-soft);
  font-size: clamp(1rem, 2vw, 1.125rem);
  max-width: 34ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.8rem 1.35rem;
  font-family: var(--font-body);
  font-size: 0.98rem;
  font-weight: 600;
  border-radius: 2px;
  transition: transform 0.25s var(--ease), background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

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

.btn-primary {
  background: var(--ink);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--accent);
}

.btn-ghost {
  border: 1.5px solid var(--ink);
  background: transparent;
}

.btn-ghost:hover {
  background: var(--ink);
  color: var(--white);
}

.services,
.process,
.contact {
  padding: clamp(4.5rem, 10vw, 7.5rem) clamp(1.25rem, 4vw, 3.5rem);
}

.section-head {
  max-width: 36rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-head h2,
.contact h2 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.section-head p,
.contact p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.service-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.service {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1rem 1.5rem;
  padding: clamp(1.5rem, 3vw, 2.25rem) 0;
  border-bottom: 1px solid var(--line);
  transition: background 0.3s ease, padding-left 0.35s var(--ease);
}

.service:hover {
  background: var(--accent-soft);
  padding-left: 0.75rem;
}

.service-index {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent);
  letter-spacing: 0.04em;
  padding-top: 0.2rem;
}

.service h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.service p {
  margin: 0;
  max-width: 42rem;
  color: var(--ink-soft);
}

.process {
  background:
    linear-gradient(180deg, transparent, rgba(15, 107, 92, 0.05) 30%, transparent),
    transparent;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
  counter-reset: step;
}

.steps li {
  position: relative;
  padding: 0 0 0 4.25rem;
  counter-increment: step;
}

.steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--accent);
  line-height: 1;
}

.steps strong {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
}

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

@media (min-width: 800px) {
  .steps {
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }

  .steps li {
    padding: 3rem 0 0;
  }

  .steps li::before {
    top: 0;
  }
}

.contact {
  padding-bottom: clamp(5rem, 12vw, 8rem);
}

.contact-panel {
  max-width: 44rem;
  padding: clamp(2rem, 5vw, 3.5rem);
  background:
    linear-gradient(145deg, rgba(15, 107, 92, 0.12), transparent 45%),
    linear-gradient(180deg, #1a2622, #0c1210);
  color: var(--white);
}

.contact-brand {
  margin: 0 0 1.25rem !important;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.5rem, 8vw, 4rem);
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--white) !important;
}

.contact-panel h2 {
  color: var(--white);
  max-width: 16ch;
}

.contact-panel p:not(.contact-brand) {
  margin: 0 0 1.75rem !important;
  color: rgba(247, 250, 248, 0.72) !important;
  max-width: 34ch;
}

.contact-panel .btn-primary {
  background: var(--white);
  color: var(--ink);
}

.contact-panel .btn-primary:hover {
  background: var(--accent-bright);
  color: var(--white);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 2rem;
  padding: 1.75rem clamp(1.25rem, 4vw, 3.5rem);
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.site-footer span {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ink);
}

.footer-copy {
  margin: 0;
}

.site-footer > p:first-child {
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.8s var(--ease),
    transform 0.8s var(--ease);
  transition-delay: var(--d, 0s);
}

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

.hero .reveal {
  opacity: 0;
  animation: rise 0.9s var(--ease) forwards;
  animation-delay: var(--d, 0s);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes plane-in {
  from {
    opacity: 0;
    transform: translateX(4%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float-a {
  0%,
  100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(-18px, 22px);
  }
}

@keyframes float-b {
  0%,
  100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(14px, -16px);
  }
}

@keyframes grid-drift {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 56px 56px;
  }
}

@media (max-width: 720px) {
  .hero-plane {
    clip-path: polygon(0 42%, 100% 18%, 100% 100%, 0 100%);
  }

  .hero-grid {
    mask-image: linear-gradient(180deg, transparent 10%, black 50%);
  }

  .hero {
    align-items: flex-end;
    padding-bottom: 3rem;
  }

  .hero-content {
    max-width: 100%;
  }

  .brand {
    font-size: clamp(3.4rem, 18vw, 5.5rem);
  }

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

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

  .reveal,
  .hero .reveal,
  .hero-plane,
  .hero-orb,
  .hero-grid {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}