:root {
  --ink: #0b1c22;
  --ink-soft: #163039;
  --paper: #eef2f1;
  --paper-2: #e2e8e6;
  --mist: #cfdcd8;
  --teal: #1f6f63;
  --teal-deep: #145248;
  --gold: #c4a35a;
  --line: rgba(11, 28, 34, 0.12);
  --text: #14262c;
  --muted: #4d6269;
  --radius: 2px;
  --shell: min(1120px, calc(100% - 2.5rem));
  --font-display: "Fraunces", "Times New Roman", serif;
  --font-body: "Sora", system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(31, 111, 99, 0.1), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(196, 163, 90, 0.07), transparent 50%),
    linear-gradient(180deg, #f4f7f6 0%, var(--paper) 42%, #e8eeec 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  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)' opacity='0.45'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
  z-index: 0;
}

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

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--teal-deep);
}

button,
input,
select,
textarea {
  font: inherit;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 1rem;
}

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

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  backdrop-filter: blur(10px);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease),
    backdrop-filter 0.3s var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(238, 242, 241, 0.94);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 4.25rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.logo:hover {
  opacity: 0.92;
}

.logo-img {
  display: block;
  height: 2.85rem;
  width: auto;
}

.logo-img-dark {
  display: none;
}

.site-header.is-scrolled .logo-img-light {
  display: none;
}

.site-header.is-scrolled .logo-img-dark {
  display: block;
}

.nav {
  display: flex;
  gap: 1.35rem;
  margin-left: auto;
}

.nav a,
.mobile-nav a {
  text-decoration: none;
  color: rgba(243, 241, 235, 0.78);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.3s var(--ease);
}

.nav a:hover,
.mobile-nav a:hover {
  color: #fff;
}

.site-header.is-scrolled .nav a {
  color: var(--muted);
}

.site-header.is-scrolled .nav a:hover {
  color: var(--ink);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.lang-switch a {
  text-decoration: none;
  color: rgba(243, 241, 235, 0.7);
  padding: 0.2rem 0.3rem;
  transition: color 0.25s var(--ease);
}

.lang-switch a:hover,
.lang-switch a[aria-current="page"] {
  color: #fff;
}

.site-header.is-scrolled .lang-switch a {
  color: var(--muted);
}

.site-header.is-scrolled .lang-switch a:hover,
.site-header.is-scrolled .lang-switch a[aria-current="page"] {
  color: var(--ink);
}

.lang-switch-mobile {
  padding: 0.25rem 0;
}

.lang-switch-mobile a {
  color: rgba(243, 241, 235, 0.85);
}

.site-header.is-scrolled .lang-switch-mobile a {
  color: var(--muted);
}

.header-cta {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gold);
  white-space: nowrap;
  transition: color 0.3s var(--ease);
}

.header-cta:hover {
  color: #dfc07a;
}

.site-header.is-scrolled .header-cta {
  color: var(--teal-deep);
}

.site-header.is-scrolled .header-cta:hover {
  color: var(--teal);
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid rgba(243, 241, 235, 0.3);
  background: transparent;
  padding: 0;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  transition: border-color 0.3s var(--ease);
}

.site-header.is-scrolled .nav-toggle {
  border-color: var(--line);
}

.nav-toggle span:not(.sr-only) {
  display: block;
  width: 1.1rem;
  height: 1.5px;
  background: #fff;
  transition: transform 0.25s var(--ease), background 0.3s var(--ease);
}

.site-header.is-scrolled .nav-toggle span:not(.sr-only) {
  background: var(--ink);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  transform: translateY(3.75px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-3.75px) rotate(-45deg);
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0.85rem;
  padding: 0.5rem 1.25rem 1.25rem;
  border-bottom: 1px solid rgba(243, 241, 235, 0.12);
  background: rgba(11, 28, 34, 0.96);
}

.mobile-nav a {
  color: rgba(243, 241, 235, 0.85);
}

.site-header.is-scrolled .mobile-nav {
  border-bottom-color: var(--line);
  background: rgba(238, 242, 241, 0.98);
}

.site-header.is-scrolled .mobile-nav a {
  color: var(--muted);
}

.mobile-nav:not([hidden]) {
  display: flex;
}

/* Hero */
.hero {
  position: relative;
  min-height: min(100vh, 920px);
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--paper);
  isolation: isolate;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(165deg, rgba(11, 28, 34, 0.55) 0%, rgba(11, 28, 34, 0.82) 55%, rgba(11, 28, 34, 0.94) 100%),
    linear-gradient(120deg, #145248 0%, #0b1c22 48%, #1a3340 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(243, 241, 235, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(243, 241, 235, 0.06) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 70% 60% at 70% 40%, #000 20%, transparent 75%);
  animation: grid-drift 28s linear infinite;
}

.hero-glow {
  position: absolute;
  width: 55vmax;
  height: 55vmax;
  right: -12%;
  top: -18%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 111, 99, 0.45) 0%, transparent 68%);
  animation: glow-pulse 8s ease-in-out infinite;
}

.hero-ledger {
  position: absolute;
  right: 6%;
  top: 18%;
  width: min(38vw, 420px);
  height: min(55vh, 520px);
  display: grid;
  gap: 1rem;
  opacity: 0.55;
}

.hero-ledger span {
  display: block;
  border: 1px solid rgba(243, 241, 235, 0.18);
  background: linear-gradient(90deg, rgba(243, 241, 235, 0.04), rgba(243, 241, 235, 0.1));
  transform-origin: left center;
  animation: ledger-rise 1.2s var(--ease) both;
}

.hero-ledger span:nth-child(1) {
  width: 100%;
  height: 18%;
  animation-delay: 0.15s;
}

.hero-ledger span:nth-child(2) {
  width: 78%;
  height: 14%;
  animation-delay: 0.28s;
}

.hero-ledger span:nth-child(3) {
  width: 92%;
  height: 22%;
  animation-delay: 0.4s;
}

.hero-ledger span:nth-child(4) {
  width: 64%;
  height: 28%;
  animation-delay: 0.52s;
}

.hero-content {
  padding: 8.5rem 0 5.5rem;
  max-width: 42rem;
  margin-left: max(calc((100% - var(--shell)) / 2), 1.25rem);
  margin-right: auto;
  width: auto;
}

.hero-brand {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
  color: #fff;
}

.hero-title {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3.4vw, 2.35rem);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: rgba(243, 241, 235, 0.94);
  max-width: 18ch;
}

.hero-lead {
  margin: 0 0 2rem;
  color: rgba(243, 241, 235, 0.78);
  max-width: 36ch;
  font-size: 1.02rem;
}

.hero-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;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease),
    transform 0.25s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

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

.btn-primary:hover {
  background: #c49a4a;
  color: var(--ink);
}

.btn-ghost {
  background: transparent;
  color: var(--paper);
  border-color: rgba(243, 241, 235, 0.35);
}

.btn-ghost:hover {
  background: rgba(243, 241, 235, 0.08);
  color: #fff;
}

/* Sections */
.section {
  padding: 5.5rem 0;
  position: relative;
  z-index: 1;
}

.section-alt {
  background: linear-gradient(180deg, rgba(213, 227, 223, 0.35), transparent 70%);
}

.section-trust {
  padding: 0;
  margin-top: -1.5rem;
}

.trust-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding: 1.35rem 1.5rem;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.trust-row p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}

.trust-row strong {
  color: var(--ink);
  font-weight: 600;
}

.eyebrow {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
}

.section-intro h2,
.clients-layout h2 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--ink);
  max-width: 16ch;
}

.section-lead {
  margin: 0;
  color: var(--muted);
  max-width: 38ch;
  font-size: 1.05rem;
}

.section-intro {
  margin-bottom: 2.75rem;
}

.service-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.service-item {
  display: grid;
  grid-template-columns: minmax(10rem, 0.35fr) 1fr;
  gap: 1.5rem;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
}

.service-item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.service-item p {
  margin: 0;
  color: var(--muted);
  max-width: 42ch;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem 1.5rem;
}

.cert-item {
  padding: 1.35rem 0 1.5rem;
  border-top: 1px solid var(--line);
}

.cert-label {
  margin: 0 0 0.55rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
}

.cert-item h3 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.cert-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.clients-layout,
.reach-layout,
.contact-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: start;
}

.lang-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.lang-list li {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 1rem;
  align-items: center;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.lang-code {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--teal-deep);
}

.reach-panel {
  padding: 2rem 0 0;
  border-top: 1px solid var(--line);
}

.reach-address {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.reach-note {
  margin: 0;
  color: var(--muted);
  max-width: 30ch;
}

.section-contact {
  background:
    linear-gradient(180deg, transparent, rgba(11, 28, 34, 0.03)),
    radial-gradient(ellipse 50% 40% at 80% 100%, rgba(31, 111, 99, 0.1), transparent);
}

.contact-grid {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.contact-layout .section-intro {
  grid-column: 1 / -1;
  margin-bottom: 1.5rem;
}

.contact-layout .contact-grid {
  grid-column: 1;
}

.contact-layout .contact-form {
  grid-column: 2;
  grid-row: 2;
}

.contact-link {
  display: grid;
  gap: 0.2rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.contact-link:hover .contact-value {
  color: var(--teal-deep);
}

.contact-static {
  cursor: default;
}

.contact-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact-value {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
  transition: color 0.2s var(--ease);
}

.contact-form {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.45);
  border: 1px solid var(--line);
}

.form-row {
  display: grid;
  gap: 0.4rem;
}

.form-row label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.75);
  color: var(--ink);
  padding: 0.75rem 0.85rem;
  border-radius: var(--radius);
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: 2px solid rgba(31, 111, 99, 0.35);
  outline-offset: 1px;
  border-color: var(--teal);
}

.form-note {
  margin: 0;
  font-size: 0.9rem;
  color: var(--teal-deep);
}

.form-note[data-error="true"] {
  color: #8a2f2f;
}

.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--line);
  padding: 2rem 0 2.5rem;
  background: rgba(11, 28, 34, 0.03);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.25rem;
  align-items: center;
}

.footer-brand {
  display: flex;
  gap: 0.85rem;
  align-items: center;
}

.footer-logo {
  display: block;
  height: 2.6rem;
  width: auto;
}

.footer-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-meta a {
  text-decoration: none;
}

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

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

@keyframes grid-drift {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-72px, -72px, 0);
  }
}

@keyframes glow-pulse {
  0%,
  100% {
    opacity: 0.75;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.06);
  }
}

@keyframes ledger-rise {
  from {
    opacity: 0;
    transform: scaleX(0.6) translateY(12px);
  }
  to {
    opacity: 1;
    transform: scaleX(1) translateY(0);
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero-grid,
  .hero-glow,
  .hero-ledger span {
    animation: none;
  }

  .btn:hover {
    transform: none;
  }
}

@media (max-width: 900px) {
  .nav,
  .header-cta,
  .header-inner > .lang-switch {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .trust-row,
  .clients-layout,
  .reach-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

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

  .service-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .contact-layout .contact-grid,
  .contact-layout .contact-form {
    grid-column: 1;
    grid-row: auto;
  }

  .hero-ledger {
    opacity: 0.28;
    right: -8%;
  }

  .hero-content {
    padding-top: 7rem;
    padding-bottom: 4rem;
    margin-left: auto;
    width: var(--shell);
  }

  .hero-brand {
    font-size: clamp(2.4rem, 12vw, 3.6rem);
  }
}

@media (max-width: 640px) {
  :root {
    --shell: calc(100% - 1.5rem);
  }

  .logo-img {
    height: 2.35rem;
  }

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

  .trust-row {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .section {
    padding: 4rem 0;
  }

  .hero {
    min-height: 100svh;
  }
}