:root {
  --font-display: "Archivo", "Be Vietnam Pro", sans-serif;
  --font-body: "Be Vietnam Pro", sans-serif;
  --paper: oklch(98.4% 0.008 95);
  --paper-strong: oklch(100% 0.003 95);
  --paper-soft: oklch(95.8% 0.014 95);
  --ink: oklch(22% 0.034 240);
  --ink-soft: oklch(43% 0.028 240);
  --ink-muted: oklch(56% 0.022 240);
  --line: oklch(87% 0.018 100);
  --line-dark: oklch(38% 0.028 240);
  --gold: oklch(70% 0.158 78);
  --gold-dark: oklch(54% 0.132 73);
  --gold-soft: oklch(93% 0.06 86);
  --blue: oklch(48% 0.145 255);
  --night: oklch(21% 0.035 240);
  --night-soft: oklch(27% 0.038 240);
  --success: oklch(53% 0.115 156);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;
  --max-width: 1200px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

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

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

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
}

.container {
  width: min(calc(100% - 48px), var(--max-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 20;
  transform: translateY(-160%);
  background: var(--ink);
  color: var(--paper-strong);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  transition: transform 180ms var(--ease-out);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklch, var(--paper) 92%, transparent);
  border-bottom: 1px solid color-mix(in oklch, var(--line) 82%, transparent);
  backdrop-filter: blur(14px);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.brand img {
  width: 104px;
  height: auto;
}

.brand span {
  padding-left: 12px;
  border-left: 1px solid var(--line);
  color: var(--ink-muted);
  white-space: nowrap;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 600;
}

.primary-nav > a:not(.button) {
  position: relative;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.primary-nav > a:not(.button)::after {
  position: absolute;
  right: 0;
  bottom: 7px;
  left: 0;
  height: 2px;
  background: var(--gold);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms var(--ease-out);
}

.primary-nav > a:not(.button):hover::after,
.primary-nav > a:not(.button):focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-toggle {
  display: none;
  border: 0;
  background: transparent;
  color: var(--ink);
  min-width: 64px;
  min-height: 44px;
  padding: 8px;
}

.menu-toggle__line {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
  transition: transform 180ms var(--ease-out), opacity 180ms var(--ease-out);
}

.menu-toggle__label {
  display: block;
  margin-top: 4px;
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: 1px solid var(--ink);
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: var(--paper-strong);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: transform 180ms var(--ease-out), background-color 180ms var(--ease-out), color 180ms var(--ease-out);
}

.button:hover {
  transform: translateY(-2px);
  background: var(--gold-dark);
  border-color: var(--gold-dark);
}

.button:active {
  transform: translateY(1px);
}

.button--small {
  min-height: 44px;
  padding: 8px 16px;
}

.button--full {
  width: 100%;
}

.button--light {
  border-color: var(--paper-strong);
  background: var(--paper-strong);
  color: var(--night);
}

.button--light:hover {
  background: var(--gold-soft);
  border-color: var(--gold-soft);
}

.hero {
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 12% 16%, color-mix(in oklch, var(--gold-soft) 60%, transparent) 0, transparent 28%),
    var(--paper);
}

.hero-grid {
  min-height: 700px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
  align-items: center;
  gap: 48px;
  padding-block: 96px;
}

.hero-copy {
  max-width: 680px;
  min-width: 0;
}

.eyebrow,
.consultation-card__topline,
.why-image__label {
  margin: 0;
  color: var(--gold-dark);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.09em;
  line-height: 1.4;
  text-transform: uppercase;
}

.section-tag,
.service-row__label {
  margin: 0;
  color: var(--gold-dark);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
}

.hero-copy h1,
.section-heading h2,
.section-intro h2,
.matrix-copy h2,
.process-intro h2,
.why-copy h2,
.closing-cta h2 {
  margin: 16px 0 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.03;
  text-wrap: balance;
}

.hero-copy h1 {
  max-width: 680px;
  font-size: clamp(42px, 4.65vw, 64px);
}

.hero-lede {
  max-width: 540px;
  margin: 24px 0 0;
  color: var(--ink);
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 600;
  line-height: 1.3;
  text-wrap: balance;
}

.hero-description {
  max-width: 620px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 32px;
}

.text-link,
.inline-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.text-link span,
.inline-cta span {
  color: var(--gold-dark);
  font-size: 18px;
  transition: transform 180ms var(--ease-out);
}

.text-link:hover span,
.inline-cta:hover span {
  transform: translate(3px, -3px);
}

.text-link--dark {
  color: var(--paper-strong);
}

.hero-note {
  max-width: 500px;
  margin: 24px 0 0;
  color: var(--ink-muted);
  font-size: 13px;
}

.hero-service-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 620px;
  margin-top: 32px;
  border-top: 1px solid var(--line);
}

.hero-service-links a {
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 12px 12px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}

.hero-service-links a:nth-child(even) {
  padding-left: 12px;
  border-left: 1px solid var(--line);
}

.hero-service-links a span:last-child {
  color: var(--gold-dark);
  font-size: 18px;
  transition: transform 180ms var(--ease-out);
}

.hero-service-links a:hover span:last-child {
  transform: translate(3px, -3px);
}

.consultation-card {
  position: relative;
  max-width: 520px;
  min-width: 0;
  justify-self: end;
  padding: 32px;
  border: 1px solid var(--line);
  border-top: 4px solid var(--gold);
  background: var(--paper-strong);
}

.consultation-card__topline {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-muted);
  font-size: 11px;
}

.status-mark {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
}

.consultation-card h2 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.form-intro {
  margin: 12px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.demo-note {
  margin: 16px 0 0;
  padding: 8px 10px;
  border: 1px solid color-mix(in oklch, var(--gold-dark) 42%, var(--line));
  background: var(--gold-soft);
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.45;
}

form {
  margin-top: 24px;
}

.form-field {
  margin-top: 16px;
}

.form-field:first-child {
  margin-top: 0;
}

.form-field label,
.form-field legend {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}

.form-field label > span:not(.optional),
.form-field legend > span:not(.optional) {
  color: var(--gold-dark);
}

.optional {
  color: var(--ink-muted);
  font-size: 11px;
  font-weight: 500;
}

.form-field input[type="text"],
.form-field input[type="tel"],
.form-field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.5;
  padding: 12px;
  transition: border-color 180ms var(--ease-out), background-color 180ms var(--ease-out);
}

.form-field textarea {
  min-height: 96px;
  resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--gold-dark);
  background: var(--paper-strong);
  outline: 3px solid color-mix(in oklch, var(--gold-soft) 70%, transparent);
  outline-offset: 0;
}

.form-field input[aria-invalid="true"],
.form-field textarea[aria-invalid="true"] {
  border-color: var(--gold-dark);
  background: color-mix(in oklch, var(--gold-soft) 35%, var(--paper));
}

.field-error {
  display: block;
  min-height: 0;
  margin-top: 4px;
  color: var(--gold-dark);
  font-size: 12px;
  line-height: 1.4;
}

.service-fieldset {
  padding: 0;
  border: 0;
}

.service-fieldset legend {
  width: 100%;
}

.service-choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.choice-chip {
  position: relative;
  display: flex;
  min-height: 48px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: border-color 180ms var(--ease-out), background-color 180ms var(--ease-out), color 180ms var(--ease-out);
}

.choice-chip--wide {
  grid-column: 1 / -1;
}

.choice-chip input {
  position: absolute;
  opacity: 0;
}

.choice-chip span {
  display: flex;
  width: 100%;
  min-height: 48px;
  align-items: center;
  padding: 8px 12px;
}

.choice-chip:hover {
  border-color: var(--gold-dark);
  color: var(--ink);
}

.choice-chip:has(input:checked) {
  border-color: var(--gold-dark);
  background: var(--gold-soft);
  color: var(--ink);
}

.choice-chip:has(input:focus-visible) {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
}

.form-disclaimer {
  margin: 12px 0 0;
  color: var(--ink-muted);
  font-size: 11px;
  line-height: 1.5;
}

.form-message {
  margin-top: 16px;
  padding: 12px;
  border: 1px solid color-mix(in oklch, var(--success) 50%, var(--line));
  border-radius: var(--radius-sm);
  background: color-mix(in oklch, var(--success) 8%, var(--paper-strong));
  color: var(--ink);
  font-size: 13px;
}

.form-message[data-state="error"] {
  border-color: color-mix(in oklch, var(--gold-dark) 55%, var(--line));
  background: var(--gold-soft);
}

.service-map {
  padding-block: 96px;
  border-bottom: 1px solid var(--line);
  background: var(--paper-strong);
}

.service-map-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.78fr) minmax(0, 1.22fr);
  gap: 64px;
  align-items: start;
}

.section-intro {
  max-width: 380px;
  min-width: 0;
}

.section-intro h2,
.section-heading h2,
.matrix-copy h2,
.process-intro h2,
.why-copy h2,
.closing-cta h2 {
  font-size: clamp(32px, 4vw, 54px);
}

.section-intro > p:last-child,
.section-heading > p:last-child,
.matrix-copy > p,
.process-intro > p,
.why-copy > p {
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: 16px;
}

.service-index {
  border-top: 1px solid var(--line);
}

.service-index-item {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) 24px;
  align-items: center;
  gap: 16px;
  min-height: 104px;
  padding-block: 16px;
  border-bottom: 1px solid var(--line);
  transition: padding-inline 180ms var(--ease-out), background-color 180ms var(--ease-out);
}

.service-index-item:hover {
  padding-inline: 12px;
  background: var(--gold-soft);
}

.service-index-item__number,
.service-row__index,
.proof-strip__mark,
.process-list__number,
.matrix-list div > span {
  color: var(--gold-dark);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.service-index-item__body {
  display: grid;
  gap: 4px;
}

.service-index-item__body strong {
  font-family: var(--font-display);
  font-size: 21px;
  letter-spacing: -0.025em;
}

.service-index-item__body span {
  color: var(--ink-muted);
  font-size: 13px;
}

.service-index-item__arrow {
  color: var(--gold-dark);
  font-size: 20px;
  transition: transform 180ms var(--ease-out);
}

.service-index-item:hover .service-index-item__arrow {
  transform: translate(3px, -3px);
}

.proof-strip {
  border-bottom: 1px solid var(--line);
  background: var(--paper-soft);
}

.proof-strip__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.proof-strip__grid > div {
  display: grid;
  grid-template-columns: 1fr;
  row-gap: 4px;
  min-height: 112px;
  align-content: center;
  padding: 16px 24px;
  border-right: 1px solid var(--line);
}

.proof-strip__grid > div:first-child {
  padding-left: 0;
}

.proof-strip__grid > div:last-child {
  padding-right: 0;
  border-right: 0;
}

.proof-strip__grid strong {
  font-size: 14px;
}

.proof-strip__grid span:last-child {
  color: var(--ink-muted);
  font-size: 12px;
}

.services-section {
  padding-block: 96px;
  background: var(--paper);
}

.section-heading--wide {
  max-width: 720px;
}

.section-heading,
.matrix-copy {
  min-width: 0;
}

.service-list {
  margin-top: 64px;
  border-top: 1px solid var(--line);
}

.service-row {
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(0, 1.06fr);
  gap: 64px;
  align-items: center;
  padding-block: 64px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 112px;
}

#contact,
#service-map {
  scroll-margin-top: 112px;
}

.service-row--reverse {
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
}

.service-row--reverse .service-row__visual {
  order: 2;
}

.service-row--reverse .service-row__content {
  order: 1;
}

.service-row__visual {
  position: relative;
  min-width: 0;
  min-height: 400px;
  overflow: hidden;
  background: var(--night);
}

.service-row__visual::after {
  position: absolute;
  inset: auto 0 0;
  height: 30%;
  background: linear-gradient(to top, oklch(15% 0.03 240 / 0.64), transparent);
  content: "";
}

.service-row__visual img {
  width: 100%;
  height: 100%;
  min-height: 400px;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.04);
  transition: transform 500ms var(--ease-out), filter 500ms var(--ease-out);
}

.service-row:hover .service-row__visual img {
  transform: scale(1.03);
  filter: saturate(0.9) contrast(1.04);
}

.service-row__index {
  position: absolute;
  right: 24px;
  bottom: 20px;
  z-index: 1;
  color: var(--paper-strong);
  font-size: 38px;
  letter-spacing: -0.04em;
}

.service-row__content {
  max-width: 600px;
  min-width: 0;
}

.service-row__label {
  color: var(--gold-dark);
}

.service-row h3 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 44px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.07;
  text-wrap: balance;
}

.service-row__content > p:not(.service-row__label) {
  margin: 20px 0 0;
  color: var(--ink-soft);
  font-size: 16px;
}

.service-points {
  display: grid;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.service-points li {
  position: relative;
  padding-left: 24px;
  color: var(--ink);
  font-size: 14px;
}

.service-points li::before {
  position: absolute;
  top: 0.75em;
  left: 0;
  width: 12px;
  height: 1px;
  background: var(--gold-dark);
  content: "";
}

.service-row .inline-cta {
  margin-top: 24px;
}

.protection-matrix {
  padding-block: 96px;
  background: var(--night);
  color: var(--paper-strong);
}

.matrix-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(0, 1.06fr);
  gap: 64px;
  align-items: center;
}

.matrix-visual {
  position: relative;
  min-width: 0;
  min-height: 580px;
  overflow: hidden;
  background: var(--night-soft);
}

.matrix-visual img {
  width: 100%;
  height: 100%;
  min-height: 580px;
  object-fit: cover;
  opacity: 0.82;
  filter: saturate(0.55) contrast(1.12);
}

.matrix-visual__caption {
  position: absolute;
  right: 24px;
  bottom: 24px;
  left: 24px;
  display: grid;
  gap: 4px;
  padding: 16px;
  border: 1px solid color-mix(in oklch, var(--paper-strong) 28%, transparent);
  background: color-mix(in oklch, var(--night) 74%, transparent);
}

.matrix-visual__caption span {
  color: color-mix(in oklch, var(--paper-strong) 66%, transparent);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.matrix-visual__caption strong {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: -0.02em;
}

.matrix-copy .section-tag,
.process-intro .section-tag,
.why-copy .section-tag,
.closing-cta .section-tag {
  color: var(--gold);
}

.matrix-copy h2,
.process-intro h2,
.why-copy h2,
.closing-cta h2 {
  color: var(--paper-strong);
}

.matrix-copy > p {
  color: color-mix(in oklch, var(--paper-strong) 72%, transparent);
}

.matrix-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 24px;
  margin-top: 32px;
  border-top: 1px solid var(--line-dark);
}

.matrix-list div {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 8px;
  padding-block: 16px;
  border-bottom: 1px solid var(--line-dark);
}

.matrix-list div > span {
  grid-row: span 2;
  color: var(--gold);
}

.matrix-list strong {
  font-size: 14px;
}

.matrix-list small {
  color: color-mix(in oklch, var(--paper-strong) 64%, transparent);
  font-size: 12px;
  line-height: 1.5;
}

.matrix-copy .text-link {
  margin-top: 24px;
}

.process-section {
  padding-block: 96px;
  background: var(--night-soft);
  color: var(--paper-strong);
}

.process-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.78fr) minmax(0, 1.22fr);
  gap: 96px;
  align-items: start;
}

.process-intro {
  position: sticky;
  top: 104px;
  min-width: 0;
}

.process-intro > p:not(.section-tag) {
  color: color-mix(in oklch, var(--paper-strong) 68%, transparent);
}

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

.process-list li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 16px;
  padding-block: 24px;
  border-bottom: 1px solid var(--line-dark);
}

.process-list__number {
  color: var(--gold);
  font-size: 18px;
}

.process-list strong {
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: -0.025em;
}

.process-list p {
  max-width: 500px;
  margin: 8px 0 0;
  color: color-mix(in oklch, var(--paper-strong) 67%, transparent);
  font-size: 14px;
}

.why-section {
  padding-block: 96px;
  background: var(--paper-strong);
}

.why-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 64px;
  align-items: center;
}

.why-image {
  position: relative;
  min-width: 0;
  min-height: 560px;
  overflow: hidden;
  background: var(--paper-soft);
}

.why-image img {
  width: 100%;
  height: 100%;
  min-height: 560px;
  object-fit: cover;
  filter: saturate(0.66) contrast(1.04);
}

.why-image__label {
  position: absolute;
  right: 24px;
  bottom: 20px;
  color: var(--paper-strong);
  text-shadow: 0 1px 8px oklch(15% 0.03 240 / 0.65);
}

.why-copy {
  max-width: 620px;
  min-width: 0;
}

.why-pillars {
  display: grid;
  margin-top: 32px;
  border-top: 1px solid var(--line);
}

.why-pillars > div {
  display: grid;
  grid-template-columns: minmax(180px, 0.7fr) minmax(0, 1fr);
  gap: 24px;
  padding-block: 20px;
  border-bottom: 1px solid var(--line);
}

.why-pillars strong {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: -0.02em;
}

.why-pillars span {
  color: var(--ink-muted);
  font-size: 14px;
}

.faq-section {
  padding-block: 96px;
  border-top: 1px solid var(--line);
  background: var(--paper);
}

.faq-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.76fr) minmax(0, 1.24fr);
  gap: 96px;
  align-items: start;
}

.faq-list {
  min-width: 0;
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 16px;
  color: var(--ink);
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  flex: 0 0 auto;
  color: var(--gold-dark);
  content: "+";
  font-family: var(--font-body);
  font-size: 28px;
  font-weight: 400;
  line-height: 1;
  transition: transform 180ms var(--ease-out);
}

.faq-list details[open] summary::after {
  transform: rotate(45deg);
}

.faq-list details p {
  max-width: 680px;
  margin: -4px 48px 20px 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.closing-cta {
  padding-block: 64px;
  background: var(--gold-dark);
  color: var(--paper-strong);
}

.closing-cta__inner {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
}

.closing-cta h2 {
  max-width: 620px;
  margin-top: 12px;
  font-size: clamp(32px, 4vw, 56px);
}

.site-footer {
  padding-top: 64px;
  background: var(--night);
  color: var(--paper-strong);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.9fr;
  gap: 64px;
  padding-bottom: 48px;
}

.brand--footer {
  color: var(--paper-strong);
}

.brand--footer span {
  color: color-mix(in oklch, var(--paper-strong) 65%, transparent);
  border-color: var(--line-dark);
}

.footer-note {
  max-width: 380px;
  margin: 24px 0 0;
  color: color-mix(in oklch, var(--paper-strong) 65%, transparent);
  font-size: 13px;
}

.footer-links,
.footer-contact {
  display: grid;
  align-content: start;
  gap: 12px;
  font-size: 13px;
}

.footer-links a,
.footer-contact a {
  color: color-mix(in oklch, var(--paper-strong) 76%, transparent);
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--gold);
}

.footer-contact > span {
  color: var(--gold);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.footer-contact small {
  max-width: 280px;
  color: color-mix(in oklch, var(--paper-strong) 52%, transparent);
  font-size: 11px;
  line-height: 1.5;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 64px;
  border-top: 1px solid var(--line-dark);
  color: color-mix(in oklch, var(--paper-strong) 48%, transparent);
  font-size: 11px;
}

.footer-bottom a {
  color: color-mix(in oklch, var(--paper-strong) 74%, transparent);
}

.proof-section {
  padding-block: 80px;
  border-bottom: 1px solid var(--line);
  background: var(--paper-strong);
}

.proof-section__intro {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(280px, 0.58fr);
  gap: 64px;
  align-items: end;
}

.proof-section__intro h2 {
  margin: 16px 0 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 54px);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.03;
  text-wrap: balance;
}

.proof-section__intro > p {
  max-width: 480px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 16px;
}

.proof-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 56px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.proof-metric {
  display: grid;
  gap: 4px;
  min-height: 132px;
  align-content: center;
  padding: 16px 24px;
  border-right: 1px solid var(--line);
}

.proof-metric:first-child {
  padding-left: 0;
}

.proof-metric:last-child {
  padding-right: 0;
  border-right: 0;
}

.proof-metric strong {
  color: var(--ink);
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.proof-metric span {
  color: var(--ink-muted);
  font-size: 12px;
}

.client-proof {
  margin-top: 48px;
}

.client-proof__heading {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--ink-muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.client-proof__rule {
  height: 1px;
  flex: 1;
  background: var(--line);
}

.client-logo-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.client-logo-grid img {
  width: 100%;
  height: 56px;
  object-fit: contain;
  padding: 12px 16px;
  border: 1px solid var(--line);
  background: var(--paper);
  filter: grayscale(1) saturate(0.25) contrast(0.92);
  transition: filter 180ms var(--ease-out), border-color 180ms var(--ease-out);
}

.client-logo-grid img:hover {
  border-color: var(--gold-dark);
  filter: grayscale(0) saturate(0.9) contrast(1);
}

.service-proof {
  margin-top: 24px;
  padding: 12px 16px;
  border-top: 1px solid var(--gold);
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.55;
}

.service-proof strong {
  color: var(--ink);
}

.risk-section {
  padding-block: 96px;
  border-top: 1px solid var(--line);
  background: var(--paper-soft);
}

.risk-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  margin-top: 56px;
}

.risk-item {
  display: flex;
  min-width: 0;
  flex-direction: column;
  min-height: 280px;
  padding: 24px;
  border-top: 2px solid var(--ink);
  background: var(--paper-strong);
}

.risk-item__number {
  color: var(--gold-dark);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
}

.risk-item h3 {
  margin: 48px 0 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.risk-item p {
  margin: 12px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.risk-item .inline-cta {
  margin-top: auto;
  padding-top: 24px;
}

.process-note {
  display: grid;
  gap: 4px;
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--line-dark);
}

.process-note strong {
  color: var(--gold);
  font-size: 13px;
}

.process-note span {
  color: color-mix(in oklch, var(--paper-strong) 68%, transparent);
  font-size: 12px;
}

.authority-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.authority-stats div {
  display: grid;
  gap: 4px;
}

.authority-stats strong {
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 26px;
  letter-spacing: -0.04em;
  line-height: 1;
}

.authority-stats span {
  color: var(--ink-muted);
  font-size: 11px;
}

.awards-band {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: 64px;
  align-items: center;
  margin-top: 80px;
  padding-top: 48px;
  border-top: 1px solid var(--line);
}

.awards-band h3 {
  max-width: 430px;
  margin: 16px 0 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.awards-band img {
  width: 100%;
  max-height: 112px;
  object-fit: contain;
  object-position: left center;
}

.reviews-section {
  padding-block: 96px;
  border-top: 1px solid var(--line);
  background: var(--paper);
}

.reviews-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
}

.reviews-heading h2 {
  margin: 16px 0 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 54px);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.03;
}

.review-score {
  display: grid;
  justify-items: end;
  gap: 4px;
  text-align: right;
}

.review-score strong {
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 36px;
  letter-spacing: -0.05em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.review-score span {
  color: var(--ink-muted);
  font-size: 12px;
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 56px;
}

.review-card {
  display: flex;
  min-width: 0;
  min-height: 240px;
  flex-direction: column;
  margin: 0;
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--paper-strong);
}

.review-card__stars {
  color: var(--gold-dark);
  font-size: 16px;
  letter-spacing: 0.14em;
}

.review-card p {
  margin: 24px 0 0;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
}

.review-card footer {
  display: grid;
  gap: 2px;
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.review-card footer strong {
  color: var(--ink);
  font-size: 13px;
}

.review-card footer span {
  color: var(--ink-muted);
  font-size: 11px;
}

@media (max-width: 1000px) {
  .hero-grid,
  .matrix-grid,
  .why-grid {
    gap: 48px;
  }

  .proof-metrics,
  .risk-grid,
  .review-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .proof-metric:nth-child(2) {
    border-right: 0;
  }

  .proof-metric:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .proof-metric:nth-child(3) {
    padding-left: 0;
  }

  .proof-metric:nth-child(4) {
    padding-right: 0;
  }

  .primary-nav {
    gap: 16px;
  }

  .primary-nav > a:not(.button) {
    font-size: 13px;
  }
}

@media (max-width: 960px) {
  .container {
    width: min(calc(100% - 32px), var(--max-width));
  }

  .header-inner {
    min-height: 64px;
  }

  .brand img {
    width: 96px;
  }

  .brand span {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .primary-nav {
    position: absolute;
    top: 64px;
    right: 16px;
    left: 16px;
    display: none;
    padding: 16px;
    border: 1px solid var(--line);
    background: var(--paper-strong);
  }

  .primary-nav.is-open {
    display: grid;
  }

  .primary-nav > a:not(.button) {
    min-height: 44px;
    border-bottom: 1px solid var(--line);
  }

  .primary-nav > a:not(.button)::after {
    bottom: 0;
  }

  .primary-nav .button {
    margin-top: 8px;
  }

  .hero-grid,
  .service-map-layout,
  .matrix-grid,
  .process-grid,
  .why-grid,
  .faq-grid,
  .proof-section__intro,
  .awards-band {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    min-height: auto;
    padding-block: 64px;
  }

  .consultation-card {
    max-width: none;
    justify-self: stretch;
  }

  .service-map,
  .proof-section,
  .services-section,
  .risk-section,
  .protection-matrix,
  .process-section,
  .why-section,
  .reviews-section,
  .faq-section {
    padding-block: 64px;
  }

  .service-map-layout,
  .matrix-grid,
  .process-grid,
  .why-grid,
  .faq-grid {
    gap: 48px;
  }

  .section-intro,
  .section-heading,
  .why-copy,
  .proof-section__intro > p {
    max-width: 680px;
  }

  .proof-section__intro {
    gap: 32px;
  }

  .client-logo-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .awards-band {
    gap: 32px;
  }

  .awards-band img {
    max-height: 96px;
  }

  .reviews-heading {
    align-items: start;
    flex-direction: column;
  }

  .review-score {
    justify-items: start;
    text-align: left;
  }

  .proof-strip__grid {
    grid-template-columns: 1fr;
  }

  .proof-strip__grid > div,
  .proof-strip__grid > div:first-child,
  .proof-strip__grid > div:last-child {
    min-height: 84px;
    padding: 16px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .proof-strip__grid > div:last-child {
    border-bottom: 0;
  }

  .service-row,
  .service-row--reverse {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-block: 48px;
  }

  .service-row--reverse .service-row__visual,
  .service-row--reverse .service-row__content {
    order: initial;
  }

  .service-row__visual,
  .service-row__visual img {
    min-height: 320px;
  }

  .matrix-visual,
  .matrix-visual img,
  .why-image,
  .why-image img {
    min-height: 400px;
  }

  .process-intro {
    position: static;
  }

  .closing-cta__inner {
    align-items: start;
    flex-direction: column;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-grid > :first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 520px) {
  .hero-copy h1 {
    font-size: clamp(38px, 11vw, 62px);
  }

  .hero-service-links {
    grid-template-columns: 1fr;
  }

  .hero-service-links a,
  .hero-service-links a:nth-child(even) {
    padding-inline: 0;
    border-left: 0;
  }

  .hero-lede {
    font-size: 20px;
  }

  .hero-description {
    font-size: 15px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions .button,
  .hero-actions .text-link {
    width: 100%;
    justify-content: center;
  }

  .consultation-card {
    padding: 24px;
  }

  .service-choice-grid,
  .matrix-list,
  .proof-metrics,
  .risk-grid,
  .review-grid {
    grid-template-columns: 1fr;
  }

  .proof-metric,
  .proof-metric:first-child,
  .proof-metric:nth-child(3),
  .proof-metric:nth-child(4) {
    min-height: 104px;
    padding: 16px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .proof-metric:last-child {
    border-bottom: 0;
  }

  .client-proof__heading {
    align-items: start;
    flex-direction: column;
    gap: 8px;
  }

  .client-proof__rule {
    width: 100%;
  }

  .client-logo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .client-logo-grid img {
    height: 48px;
    padding: 8px 12px;
  }

  .risk-item {
    min-height: 240px;
  }

  .authority-stats {
    gap: 8px;
  }

  .authority-stats strong {
    font-size: 22px;
  }

  .awards-band {
    margin-top: 56px;
    padding-top: 32px;
  }

  .awards-band img {
    max-height: 72px;
  }

  .choice-chip--wide {
    grid-column: auto;
  }

  .service-index-item {
    grid-template-columns: 36px minmax(0, 1fr) 20px;
    gap: 12px;
  }

  .service-index-item__body strong {
    font-size: 18px;
  }

  .service-index-item__body span {
    font-size: 12px;
  }

  .service-row__visual,
  .service-row__visual img {
    min-height: 260px;
  }

  .matrix-visual,
  .matrix-visual img,
  .why-image,
  .why-image img {
    min-height: 320px;
  }

  .why-pillars > div {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .faq-list summary {
    min-height: 64px;
    font-size: 16px;
  }

  .faq-list details p {
    margin-right: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-grid > :first-child {
    grid-column: auto;
  }

  .footer-bottom {
    align-items: start;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    padding-block: 16px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

.zalo-float {
  position: fixed;
  right: 20px;
  bottom: max(20px, env(safe-area-inset-bottom));
  z-index: 90;
  display: inline-flex;
  min-width: 48px;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 6px 10px 6px 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper-strong);
  color: var(--ink);
  box-shadow: 0 8px 24px color-mix(in oklch, var(--ink) 16%, transparent);
  font-size: 12px;
  font-weight: 700;
}

.zalo-float img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
}

.zalo-float:hover {
  border-color: var(--gold-dark);
  transform: translateY(-2px);
}

@media (max-width: 520px) {
  .zalo-float {
    right: 16px;
    bottom: max(16px, env(safe-area-inset-bottom));
    padding: 6px;
  }

  .zalo-float span {
    display: none;
  }

  body {
    padding-bottom: 72px;
  }
}