/* ==================================================================
   NOVA CONCEPTS · "Obsidian private gold desk"
   Locked dark theme. One metal. Vault registration marks as signature.
   ================================================================== */

/* ---------- fonts -------------------------------------------------- */

@font-face {
  font-family: "Piazzolla";
  src: url("../fonts/piazzolla-latin-var.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Piazzolla";
  src: url("../fonts/piazzolla-latin-ext-var.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113,
    U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Piazzolla";
  src: url("../fonts/piazzolla-cyrillic-var.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "Golos Text";
  src: url("../fonts/golos-latin-var.woff2") format("woff2");
  font-weight: 400 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Golos Text";
  src: url("../fonts/golos-latin-ext-var.woff2") format("woff2");
  font-weight: 400 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113,
    U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Golos Text";
  src: url("../fonts/golos-cyrillic-var.woff2") format("woff2");
  font-weight: 400 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "Geist Mono";
  src: url("../fonts/geist-mono-latin-var.woff2") format("woff2");
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}

/* ---------- tokens -------------------------------------------------- */

:root {
  /* obsidian surfaces */
  --bg: oklch(0.145 0.008 270);
  --bg-deep: oklch(0.115 0.007 270);
  --bg-plate: oklch(0.175 0.01 268);
  --bg-raised: oklch(0.205 0.011 266);

  /* ink */
  --ink: oklch(0.945 0.006 90);
  --ink-dim: oklch(0.73 0.012 85);
  --ink-faint: oklch(0.56 0.012 85);

  /* the metal */
  --gold: oklch(0.8 0.105 90);          /* champagne */
  --gold-deep: oklch(0.66 0.115 84);    /* bullion */
  --gold-dark: oklch(0.45 0.085 80);

  /* hairlines */
  --line: oklch(0.945 0.006 90 / 0.11);
  --line-strong: oklch(0.945 0.006 90 / 0.2);
  --line-gold: oklch(0.8 0.105 90 / 0.34);

  /* semantic */
  --danger: oklch(0.7 0.14 25);

  /* type */
  --serif: "Piazzolla", "Georgia", serif;
  --sans: "Golos Text", system-ui, sans-serif;
  --mono: "Geist Mono", ui-monospace, monospace;

  /* layout */
  --wrap: 76rem;
  --pad: clamp(1.25rem, 4vw, 3rem);
  --sec-gap: clamp(5rem, 11vh, 8.5rem);

  /* motion */
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
  --t-fast: 180ms;
  --t-med: 280ms;

  /* z scale */
  --z-head: 50;
  --z-menu: 60;
  --z-grain: 80;
}

@property --sheen-x {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 50%;
}

/* ---------- base ----------------------------------------------------- */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.03125rem;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 520;
  line-height: 1.08;
  letter-spacing: -0.018em;
  text-wrap: balance;
}

p {
  margin: 0;
  text-wrap: pretty;
}

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

a {
  color: inherit;
}

button {
  font: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

::selection {
  background: var(--gold-deep);
  color: var(--bg-deep);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.6rem 1rem;
  background: var(--gold);
  color: var(--bg-deep);
  font-weight: 600;
  text-decoration: none;
  transform: translateY(-300%);
}

.skip-link:focus-visible {
  transform: none;
}

.gold-i {
  font-style: italic;
  font-weight: 460;
  color: var(--gold);
  padding-bottom: 0.05em;
}

.lede {
  color: var(--ink-dim);
  font-size: clamp(1.04rem, 1.4vw, 1.14rem);
  max-width: 58ch;
}

/* fine grain over everything, GPU-cheap: fixed + pointer-events none */
.grain {
  position: fixed;
  inset: 0;
  z-index: var(--z-grain);
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.92' numOctaves='2'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* vault registration marks */
.corner-ticks {
  position: absolute;
  inset: 0.6rem;
  pointer-events: none;
  background:
    linear-gradient(var(--line-gold), var(--line-gold)) left top / 1rem 1px,
    linear-gradient(var(--line-gold), var(--line-gold)) left top / 1px 1rem,
    linear-gradient(var(--line-gold), var(--line-gold)) right top / 1rem 1px,
    linear-gradient(var(--line-gold), var(--line-gold)) right top / 1px 1rem,
    linear-gradient(var(--line-gold), var(--line-gold)) left bottom / 1rem 1px,
    linear-gradient(var(--line-gold), var(--line-gold)) left bottom / 1px 1rem,
    linear-gradient(var(--line-gold), var(--line-gold)) right bottom / 1rem 1px,
    linear-gradient(var(--line-gold), var(--line-gold)) right bottom / 1px 1rem;
  background-repeat: no-repeat;
}

/* ---------- buttons -------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.7rem;
  font-family: var(--sans);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 160ms var(--ease-out), background-color var(--t-fast) ease,
    border-color var(--t-fast) ease, color var(--t-fast) ease;
}

.btn:active {
  transform: scale(0.97);
}

.btn-gold {
  background: var(--gold);
  color: var(--bg-deep);
}

.btn-gold:hover {
  background: oklch(0.85 0.1 92);
}

.btn-ghost {
  border-color: var(--line-strong);
  color: var(--ink);
  background: transparent;
}

.btn-ghost:hover {
  border-color: var(--line-gold);
  color: var(--gold);
}

/* ---------- header ---------------------------------------------------- */

.site-head {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-head);
  background: oklch(0.145 0.008 270 / 0);
  border-bottom: 1px solid transparent;
  transition: background-color var(--t-med) ease, border-color var(--t-med) ease,
    backdrop-filter var(--t-med) ease;
}

.site-head.is-scrolled {
  background: oklch(0.13 0.008 270 / 0.82);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}

.head-in {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
  height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.5;
  stroke-linecap: square;
}

.brand-name {
  font-family: var(--sans);
  font-weight: 650;
  font-size: 0.92rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.head-nav {
  display: flex;
  gap: clamp(1.2rem, 2.5vw, 2.2rem);
}

.head-nav a {
  position: relative;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink-dim);
  text-decoration: none;
  padding: 0.4rem 0;
  transition: color var(--t-fast) ease;
}

.head-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--gold);
  transition: right 220ms var(--ease-out);
}

.head-nav a:hover {
  color: var(--ink);
}

.head-nav a:hover::after {
  right: 0;
}

.head-tools {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* language selector */
.lang-box {
  position: relative;
}

.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.7rem;
  background: transparent;
  border: 1px solid var(--line-strong);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: border-color var(--t-fast) ease, transform 160ms var(--ease-out);
}

.lang-btn:hover {
  border-color: var(--line-gold);
}

.lang-btn:active {
  transform: scale(0.97);
}

.lang-btn svg {
  width: 0.6rem;
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.5;
  transition: transform 200ms var(--ease-out);
}

.lang-box.open .lang-btn svg {
  transform: rotate(180deg);
}

.lang-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  min-width: 9.5rem;
  margin: 0;
  padding: 0.35rem;
  list-style: none;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  box-shadow: 0 8px 24px oklch(0 0 0 / 0.4);
  transform-origin: top right;
  transform: scale(0.96);
  opacity: 0;
  visibility: hidden;
  transition: transform 180ms var(--ease-out), opacity 180ms var(--ease-out),
    visibility 0s linear 180ms;
}

.lang-box.open .lang-menu {
  transform: none;
  opacity: 1;
  visibility: visible;
  transition: transform 180ms var(--ease-out), opacity 180ms var(--ease-out);
}

.lang-menu a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.75rem;
  font-size: 0.88rem;
  text-decoration: none;
  color: var(--ink-dim);
  transition: background-color var(--t-fast) ease, color var(--t-fast) ease;
}

.lang-menu a:hover {
  background: oklch(0.945 0.006 90 / 0.06);
  color: var(--ink);
}

.lang-menu [aria-selected="true"] a {
  color: var(--gold);
}

.lang-menu [aria-selected="true"] a::after {
  content: "";
  width: 0.4rem;
  height: 0.4rem;
  background: var(--gold);
  transform: rotate(45deg);
}

/* mobile menu */
.menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 0.42rem;
  width: 2.6rem;
  height: 2.6rem;
  background: transparent;
  border: 1px solid var(--line-strong);
  cursor: pointer;
}

.menu-line {
  display: block;
  width: 1.1rem;
  height: 1px;
  margin-inline: auto;
  background: var(--ink);
  transition: transform 220ms var(--ease-out);
}

.menu-btn[aria-expanded="true"] .menu-line:first-child {
  transform: translateY(0.215rem) rotate(45deg);
}

.menu-btn[aria-expanded="true"] .menu-line:last-child {
  transform: translateY(-0.215rem) rotate(-45deg);
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem var(--pad) 1.5rem;
  background: oklch(0.13 0.008 270 / 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.mobile-nav a {
  padding: 0.8rem 0;
  font-size: 1.05rem;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}

.mobile-nav .btn {
  margin-top: 1rem;
  border-bottom: none;
}

/* ---------- hero ------------------------------------------------------ */

.hero {
  position: relative;
  min-height: 100dvh;
  display: grid;
  align-items: center;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 72% center;
  filter: saturate(0.88) brightness(0.78) contrast(1.05);
  transform: scale(1.06);
  animation: hero-settle 1600ms var(--ease-out) 150ms forwards;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 78% 40%, transparent 0%, oklch(0.145 0.008 270 / 0.55) 55%, var(--bg) 100%),
    linear-gradient(92deg, var(--bg) 22%, oklch(0.145 0.008 270 / 0.82) 42%, oklch(0.145 0.008 270 / 0.25) 70%, oklch(0.145 0.008 270 / 0.45) 100%),
    linear-gradient(to top, var(--bg) 0%, transparent 26%);
}

.hero-dust {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1200ms ease 800ms;
}

.hero-dust.on {
  opacity: 1;
}

@keyframes hero-settle {
  to {
    transform: scale(1);
  }
}

.hero-in {
  position: relative;
  z-index: 1;
  max-width: var(--wrap);
  width: 100%;
  margin-inline: auto;
  padding: 7.5rem var(--pad) 5rem;
}

.hero-title {
  font-size: clamp(2.55rem, 5vw, 4.45rem);
  max-width: 14ch;
}

.line-mask {
  display: block;
  overflow: hidden;
  padding-bottom: 0.09em;
}

.line-mask > span {
  display: block;
  transform: translateY(115%);
  animation: line-up 800ms var(--ease-out) forwards;
}

.line-mask:nth-child(2) > span {
  animation-delay: 100ms;
}

@keyframes line-up {
  to {
    transform: translateY(0);
  }
}

.hero-sub {
  margin-top: 1.7rem;
  max-width: 46ch;
  color: var(--ink-dim);
  font-size: clamp(1.04rem, 1.35vw, 1.15rem);
  opacity: 0;
  animation: fade-up 700ms var(--ease-out) 320ms forwards;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2.3rem;
  opacity: 0;
  animation: fade-up 700ms var(--ease-out) 460ms forwards;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- trust band ------------------------------------------------ */

.trust {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-deep);
}

.trust-in {
  max-width: var(--wrap);
  margin-inline: auto;
  padding: 0 var(--pad);
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.trust-in li {
  padding: 1.15rem 1rem 1.15rem 0;
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--ink-dim);
}

.trust-in li + li {
  padding-left: 1.25rem;
  border-left: 1px solid var(--line);
}

/* ---------- shared section scaffolding -------------------------------- */

.sec-head {
  max-width: 56ch;
  margin-bottom: clamp(2.5rem, 5vh, 4rem);
}

.sec-head h2,
.preserve h2,
.intl h2,
.contact h2 {
  font-size: clamp(1.95rem, 3.3vw, 3rem);
}

.sec-head .lede {
  margin-top: 1.1rem;
}

/* ---------- preserve --------------------------------------------------- */

.preserve {
  max-width: var(--wrap);
  margin: var(--sec-gap) auto 0;
  padding-inline: var(--pad);
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: center;
}

.preserve-fig {
  position: relative;
  margin: 0;
  max-height: 38rem;
  overflow: hidden;
}

.preserve-fig img {
  width: 100%;
  height: 100%;
  max-height: 38rem;
  object-fit: cover;
  filter: saturate(0.9) brightness(0.92);
}

@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .preserve-fig img {
      animation: drift linear both;
      animation-timeline: view();
      animation-range: entry 0% exit 100%;
    }
    @keyframes drift {
      from { transform: translateY(-3.5%) scale(1.08); }
      to { transform: translateY(3.5%) scale(1.08); }
    }
  }
}

.preserve-body .lede {
  margin-top: 1.3rem;
}

.preserve-points {
  margin: 2.4rem 0 0;
}

.preserve-points > div {
  display: grid;
  grid-template-columns: 9.5rem 1fr;
  gap: 1.25rem;
  padding: 1.05rem 0;
}

.preserve-points > div + div {
  border-top: 1px solid var(--line);
}

.preserve-points dt {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.12rem;
  color: var(--gold);
}

.preserve-points dd {
  margin: 0;
  color: var(--ink-dim);
  font-size: 0.97rem;
}

/* ---------- services ---------------------------------------------------- */

.services {
  max-width: var(--wrap);
  margin: var(--sec-gap) auto 0;
  padding-inline: var(--pad);
}

.svc-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.svc {
  position: relative;
  grid-column: span 6;
  padding: clamp(1.75rem, 3.5vw, 2.75rem);
  background: var(--bg-plate);
  overflow: hidden;
  isolation: isolate;
  transition: background-color var(--t-med) ease;
  --mx: 50%;
  --my: 50%;
}

.svc:nth-child(1) { grid-column: span 7; }
.svc:nth-child(2) { grid-column: span 5; }
.svc:nth-child(3) { grid-column: span 5; }
.svc:nth-child(4) { grid-column: span 7; }

/* metallic sheen that follows the pointer */
.svc::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(
    26rem circle at var(--mx) var(--my),
    oklch(0.8 0.105 90 / 0.08),
    transparent 55%
  );
  opacity: 0;
  transition: opacity var(--t-med) ease;
}

/* animated gold border, drawn only while hovered/focused */
.svc::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border: 1px solid transparent;
  background: linear-gradient(
      120deg,
      transparent 20%,
      var(--line-gold) 40%,
      oklch(0.85 0.1 92 / 0.65) 50%,
      var(--line-gold) 60%,
      transparent 80%
    )
    border-box;
  background-size: 250% 100%;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--t-med) ease;
}

@media (hover: hover) and (pointer: fine) {
  .svc:hover {
    background-color: var(--bg-raised);
  }
  .svc:hover::before {
    opacity: 1;
  }
  .svc:hover::after {
    opacity: 1;
    animation: border-run 2.6s linear infinite;
  }
}

.svc:focus-within::after {
  opacity: 1;
}

@keyframes border-run {
  from { background-position: 125% 0; }
  to { background-position: -125% 0; }
}

.svc-glyph {
  width: 2.6rem;
  height: 2.6rem;
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.5;
  stroke-linecap: square;
  margin-bottom: 1.3rem;
}

.svc h3 {
  font-size: 1.32rem;
  font-weight: 540;
}

.svc p {
  margin-top: 0.8rem;
  color: var(--ink-dim);
  font-size: 0.97rem;
  max-width: 44ch;
}

/* ---------- process ------------------------------------------------------ */

.process {
  max-width: var(--wrap);
  margin: var(--sec-gap) auto 0;
  padding-inline: var(--pad);
}

.proc-list {
  position: relative;
  margin: 0;
  padding: 0 0 0 clamp(2.5rem, 5vw, 3.5rem);
  list-style: none;
  counter-reset: step;
  max-width: 46rem;
}

.proc-line {
  position: absolute;
  left: 0.45rem;
  top: 0.4rem;
  bottom: 0.4rem;
  width: 1px;
  background: var(--line);
  overflow: hidden;
}

.proc-line-fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, var(--gold-deep), var(--gold));
  transform-origin: top;
  transform: scaleY(0.12);
}

@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .proc-line-fill {
      animation: line-grow linear both;
      animation-timeline: view();
      animation-range: entry 20% exit 80%;
    }
    @keyframes line-grow {
      from { transform: scaleY(0.05); }
      to { transform: scaleY(1); }
    }
  }
}

.proc-step {
  position: relative;
  counter-increment: step;
  padding: 1.4rem 0 1.6rem;
}

.proc-step + .proc-step {
  border-top: 1px solid var(--line);
}

.proc-node {
  position: absolute;
  left: calc(-1 * clamp(2.5rem, 5vw, 3.5rem) - 0.05rem);
  top: 2.05rem;
  width: 0.62rem;
  height: 0.62rem;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  transform: rotate(45deg);
  transition: background-color 300ms ease, border-color 300ms ease, box-shadow 300ms ease;
}

.proc-step.active .proc-node {
  background: var(--gold);
  border-color: var(--gold);
  box-shadow: 0 0 0 4px oklch(0.8 0.105 90 / 0.12);
}

.proc-step h3 {
  font-size: 1.28rem;
  font-weight: 540;
  transition: color 300ms ease;
}

.proc-step h3::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 460;
  color: var(--gold);
  margin-right: 0.9rem;
  letter-spacing: 0.08em;
}

.proc-step p {
  margin-top: 0.55rem;
  color: var(--ink-dim);
  font-size: 0.97rem;
  max-width: 54ch;
}

/* ---------- security ------------------------------------------------------ */

.security {
  position: relative;
  margin-top: var(--sec-gap);
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.security::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("../img/bars-flatlay.jpg");
  background-size: cover;
  background-position: center;
  opacity: 0.07;
  filter: saturate(0.6);
}

.security::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(80% 100% at 50% 0%, transparent 30%, var(--bg-deep) 100%);
}

.security-in {
  position: relative;
  z-index: 1;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: clamp(4rem, 9vh, 6.5rem) var(--pad);
}

.sec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 3.5rem) clamp(2.5rem, 5vw, 5rem);
}

.sec-item {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1.25rem;
  align-items: start;
}

.sec-glyph {
  width: 2.4rem;
  height: 2.4rem;
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.25;
  stroke-linecap: square;
  margin-top: 0.2rem;
}

.sec-item h3 {
  font-size: 1.22rem;
  font-weight: 540;
}

.sec-item p {
  margin-top: 0.6rem;
  color: var(--ink-dim);
  font-size: 0.95rem;
  max-width: 46ch;
}

/* ---------- international -------------------------------------------------- */

.intl {
  max-width: var(--wrap);
  margin: var(--sec-gap) auto 0;
  padding-inline: var(--pad);
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}

.intl-body .lede {
  margin-top: 1.3rem;
}

.intl-langs {
  margin-top: 2.2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.intl-label {
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
}

.lang-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.chip {
  padding: 0.45rem 0.95rem;
  border: 1px solid var(--line-strong);
  font-size: 0.86rem;
  text-decoration: none;
  color: var(--ink-dim);
  transition: border-color var(--t-fast) ease, color var(--t-fast) ease,
    background-color var(--t-fast) ease, transform 160ms var(--ease-out);
}

.chip:hover {
  border-color: var(--line-gold);
  color: var(--gold);
}

.chip:active {
  transform: scale(0.96);
}

.chip[aria-current] {
  border-color: var(--gold);
  color: var(--gold);
}

.intl-net svg {
  width: 100%;
  height: auto;
  display: block;
}

.net-arc {
  fill: none;
  stroke: var(--line);
  stroke-width: 1;
}

.net-arc-2 {
  stroke: oklch(0.945 0.006 90 / 0.06);
}

.net-route {
  fill: none;
  stroke: var(--gold-deep);
  stroke-width: 1.2;
  stroke-dasharray: 340;
  stroke-dashoffset: 340;
}

.intl-net.in .net-route {
  animation: route-draw 1400ms var(--ease-out) forwards;
}

.intl-net.in .net-route:nth-of-type(4) {
  animation-delay: 300ms;
}

.intl-net.in .net-route:nth-of-type(5) {
  animation-delay: 550ms;
}

@keyframes route-draw {
  to {
    stroke-dashoffset: 0;
  }
}

.net-node {
  fill: var(--gold);
  stroke: none;
}

.net-node-dim {
  fill: var(--gold-dark);
}

/* ---------- contact ---------------------------------------------------------- */

.contact {
  max-width: var(--wrap);
  margin: var(--sec-gap) auto 0;
  padding-inline: var(--pad);
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}

.contact-copy {
  position: sticky;
  top: 7rem;
}

.contact-copy .lede {
  margin-top: 1.3rem;
}

.contact-note {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  margin-top: 2.2rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  background: var(--bg-deep);
  color: var(--ink-dim);
  font-size: 0.88rem;
  max-width: 40ch;
}

.contact-note svg {
  flex: 0 0 1rem;
  width: 1rem;
  height: 1rem;
  margin-top: 0.2rem;
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.3;
}

.contact-form {
  position: relative;
  padding: clamp(1.75rem, 4vw, 2.75rem);
  background: var(--bg-plate);
  border: 1px solid var(--line);
}

.contact-form::after {
  content: "";
  position: absolute;
  inset: 0.6rem;
  pointer-events: none;
  background:
    linear-gradient(var(--line-gold), var(--line-gold)) left top / 1rem 1px,
    linear-gradient(var(--line-gold), var(--line-gold)) left top / 1px 1rem,
    linear-gradient(var(--line-gold), var(--line-gold)) right top / 1rem 1px,
    linear-gradient(var(--line-gold), var(--line-gold)) right top / 1px 1rem,
    linear-gradient(var(--line-gold), var(--line-gold)) left bottom / 1rem 1px,
    linear-gradient(var(--line-gold), var(--line-gold)) left bottom / 1px 1rem,
    linear-gradient(var(--line-gold), var(--line-gold)) right bottom / 1rem 1px,
    linear-gradient(var(--line-gold), var(--line-gold)) right bottom / 1px 1rem;
  background-repeat: no-repeat;
}

.field {
  margin-bottom: 1.4rem;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.field label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.86rem;
  font-weight: 550;
  letter-spacing: 0.02em;
}

.field .opt {
  color: var(--ink-faint);
  font-weight: 400;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.8rem 0.95rem;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  color: var(--ink);
  font: inherit;
  font-size: 0.96rem;
  transition: border-color var(--t-fast) ease, box-shadow var(--t-fast) ease;
}

.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%23c9a24b' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  background-size: 0.65rem;
}

.field textarea {
  resize: vertical;
  min-height: 7.5rem;
}

.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible {
  outline: none;
  border-color: var(--gold);
  box-shadow: inset 0 0 0 1px var(--gold), 0 0 0 3px oklch(0.8 0.105 90 / 0.12);
}

.field.invalid input,
.field.invalid textarea {
  border-color: var(--danger);
}

.field-help {
  margin-top: 0.45rem;
  font-size: 0.8rem;
  color: var(--ink-faint);
}

.field-err {
  margin-top: 0.45rem;
  font-size: 0.8rem;
  color: var(--danger);
}

.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.btn-submit {
  position: relative;
  min-width: 11rem;
}

.btn-busy {
  display: none;
  width: 0.95rem;
  height: 0.95rem;
  border: 2px solid oklch(0.115 0.007 270 / 0.35);
  border-top-color: var(--bg-deep);
  border-radius: 50%;
}

.contact-form.busy .btn-busy {
  display: inline-block;
  animation: spin 700ms linear infinite;
}

.contact-form.busy .btn-submit {
  pointer-events: none;
  opacity: 0.85;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.form-state {
  margin-top: 1.25rem;
  padding: 1rem 1.1rem;
  font-size: 0.92rem;
}

.form-ok {
  border: 1px solid var(--line-gold);
  background: oklch(0.8 0.105 90 / 0.07);
  color: var(--ink);
}

.form-bad {
  border: 1px solid oklch(0.7 0.14 25 / 0.45);
  background: oklch(0.7 0.14 25 / 0.07);
  color: var(--ink);
}

.contact-form.sent .field,
.contact-form.sent .field-row,
.contact-form.sent .btn-submit {
  opacity: 0.35;
  pointer-events: none;
}

/* ---------- footer ------------------------------------------------------------ */

.site-foot {
  margin-top: var(--sec-gap);
  border-top: 1px solid var(--line-gold);
  background: var(--bg-deep);
}

.foot-in {
  max-width: var(--wrap);
  margin-inline: auto;
  padding: clamp(2.75rem, 6vh, 4rem) var(--pad) 1.5rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2.5rem;
}

.foot-brand .brand-mark {
  width: 2.2rem;
  height: 2.2rem;
}

.foot-tag {
  margin-top: 1rem;
  color: var(--ink-dim);
  font-size: 0.92rem;
  max-width: 24ch;
}

.foot-col h3 {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.9rem;
}

.foot-col p {
  color: var(--ink-dim);
  font-size: 0.92rem;
  line-height: 1.8;
}

.foot-col a {
  color: var(--ink-dim);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color var(--t-fast) ease, border-color var(--t-fast) ease;
}

.foot-col a:hover {
  color: var(--gold);
  border-bottom-color: var(--line-gold);
}

.foot-langs a {
  display: inline-block;
  margin-right: 0.9rem;
}

.foot-langs [aria-current] {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.foot-rights {
  max-width: var(--wrap);
  margin-inline: auto;
  padding: 1.25rem var(--pad) 1.75rem;
  border-top: 1px solid var(--line);
  color: var(--ink-faint);
  font-size: 0.8rem;
}

/* ---------- scroll reveals ------------------------------------------------------ */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 650ms var(--ease-out), transform 650ms var(--ease-out);
}

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

.reveal[data-delay="1"] { transition-delay: 80ms; }
.reveal[data-delay="2"] { transition-delay: 160ms; }
.reveal[data-delay="3"] { transition-delay: 240ms; }

/* ---------- responsive ------------------------------------------------------------ */

@media (max-width: 1060px) {
  .head-nav {
    display: none;
  }

  .head-cta {
    display: none;
  }

  .menu-btn {
    display: flex;
  }

  .mobile-nav.open {
    display: flex;
  }
}

@media (max-width: 880px) {
  .preserve,
  .intl,
  .contact {
    grid-template-columns: 1fr;
  }

  .preserve-fig {
    order: 2;
    max-height: 22rem;
  }

  .preserve-fig img {
    max-height: 22rem;
  }

  .svc,
  .svc:nth-child(1),
  .svc:nth-child(2),
  .svc:nth-child(3),
  .svc:nth-child(4) {
    grid-column: span 12;
  }

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

  .trust-in {
    grid-template-columns: 1fr 1fr;
  }

  .trust-in li {
    border-left: none !important;
    padding-left: 0 !important;
    border-top: 1px solid var(--line);
  }

  .trust-in li:nth-child(-n+2) {
    border-top: none;
  }

  .contact-copy {
    position: static;
  }

  .field-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .foot-in {
    grid-template-columns: 1fr 1fr;
  }

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

  .hero-in {
    padding-top: 6.5rem;
    padding-bottom: 4rem;
  }
}

@media (max-width: 520px) {
  .foot-in {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .hero-actions .btn {
    flex: 1 1 100%;
  }
}

/* ---------- reduced motion --------------------------------------------------------- */

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

  .hero-media img,
  .line-mask > span,
  .hero-sub,
  .hero-actions {
    animation: none;
    transform: none;
    opacity: 1;
  }

  .hero-dust {
    display: none;
  }

  .reveal {
    transform: none;
    transition: opacity 250ms ease;
  }

  .svc::after {
    animation: none !important;
  }

  .intl-net .net-route,
  .intl-net.in .net-route {
    animation: none;
    stroke-dashoffset: 0;
  }

  .lang-menu {
    transition-duration: 1ms;
  }

  .btn,
  .chip,
  .lang-btn {
    transition-duration: 1ms;
  }
}