/* --------------------------------------------------------------------------
   RDC blind — refined architectural landing
   Typography: DM Serif Display (display), Inter (UI / body)
   -------------------------------------------------------------------------- */

:root {
  --bg-page: #f1f2f4;
  --bg-elevated: #fafafa;
  --bg-muted: #e6e8ec;
  --text-primary: #16181c;
  --text-secondary: #4a5058;
  --text-tertiary: #7a8089;
  --accent: #5c6b7a;
  --accent-muted: rgba(92, 107, 122, 0.45);
  --accent-soft: rgba(92, 107, 122, 0.09);
  --border-line: rgba(22, 24, 28, 0.09);
  --border-strong: rgba(22, 24, 28, 0.14);
  --shadow-header: 0 1px 0 rgba(22, 24, 28, 0.08), 0 10px 28px rgba(22, 24, 28, 0.04);
  --footer-bg: #0e1013;
  --footer-text: #b8bdc6;
  --footer-muted: #6d737d;
  --font-display: "DM Serif Display", Georgia, "Times New Roman", serif;
  --font-ui: "Inter", system-ui, -apple-system, sans-serif;
  --space-unit: 0.5rem;
  --space-xs: var(--space-unit);
  --space-sm: calc(var(--space-unit) * 2);
  --space-md: calc(var(--space-unit) * 3);
  --space-lg: calc(var(--space-unit) * 5);
  --space-xl: calc(var(--space-unit) * 8);
  --space-2xl: calc(var(--space-unit) * 12);
  --space-3xl: calc(var(--space-unit) * 16);
  --container: min(1160px, calc(100% - clamp(2rem, 5vw, 4rem)));
  --radius: 0;
  --header-h: 4.5rem;
  --transition: 200ms cubic-bezier(0.25, 0.1, 0.25, 1);
  --section-pad-y: clamp(4.5rem, 11vw, 7.5rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.62;
  letter-spacing: -0.011em;
  color: var(--text-primary);
  background-color: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

a:hover {
  color: var(--accent);
}

.container {
  width: var(--container);
  margin-inline: auto;
}

/* ----- Header ----- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: #fff;
  border-bottom: 1px solid var(--border-line);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-header);
  border-bottom-color: var(--border-strong);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.brand-block {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.875rem;
  line-height: 1.12;
  flex-shrink: 0;
  text-decoration: none;
}

.brand-block:hover {
  color: inherit;
}

.brand-logo {
  display: block;
  height: 2.625rem;
  width: auto;
  max-width: min(200px, 42vw);
  object-fit: contain;
  object-position: left center;
}

.brand-lockup-divider {
  flex-shrink: 0;
  align-self: stretch;
  width: 1px;
  min-height: 2rem;
  max-height: 2.625rem;
  margin-block: auto;
  background: var(--border-strong);
  opacity: 0.85;
}

.brand-line {
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--text-tertiary);
  white-space: nowrap;
  padding-top: 0.06em;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 1.75rem);
}

.nav-list a {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 0.4rem 0;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.nav-list a:hover {
  color: var(--text-primary);
  border-bottom-color: var(--accent-muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.btn-header {
  background: var(--text-primary);
  color: #fff;
  border-color: var(--text-primary);
}

.btn-header:hover {
  background: #2c3036;
  color: #fff;
  border-color: #2c3036;
}

.btn-primary {
  background: var(--text-primary);
  color: #fff;
  border-color: var(--text-primary);
}

.btn-primary:hover {
  background: #2c3036;
  color: #fff;
}

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

.btn-ghost:hover {
  border-color: var(--text-primary);
  background: rgba(255, 255, 255, 0.6);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--border-line);
  background: #fff;
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 1.125rem;
  height: 1px;
  background: var(--text-primary);
  margin-inline: auto;
  transition: transform var(--transition), opacity var(--transition);
}

/* ----- Hero ----- */

.hero {
  padding-top: clamp(3rem, 8vw, 5rem);
  padding-bottom: var(--space-3xl);
  border-bottom: 1px solid var(--border-line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: clamp(2.5rem, 7vw, 5.5rem);
  align-items: end;
}

.eyebrow {
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 var(--space-md);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.375rem, 4.8vw, 3.5rem);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin: 0 0 var(--space-md);
  color: var(--text-primary);
  font-feature-settings: "kern" 1, "liga" 1;
}

.hero-lead {
  margin: 0 0 var(--space-lg);
  font-size: 1.0625rem;
  font-weight: 300;
  letter-spacing: -0.008em;
  color: var(--text-secondary);
  max-width: 34em;
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.hero-visual {
  margin: 0;
  position: relative;
  align-self: end;
}

.hero-media {
  position: relative;
  width: 100%;
  max-height: min(58vh, 32rem);
  aspect-ratio: 4 / 5;
  border: 1px solid var(--border-line);
  background: var(--bg-muted);
  overflow: hidden;
}

.hero-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* ----- Sections shared ----- */

.section {
  padding-block: var(--section-pad-y);
}

.section-header {
  max-width: 38rem;
  margin-bottom: clamp(2.5rem, 6vw, 3.75rem);
}

.section-header:not(.section-header--center) .section-title {
  position: relative;
  padding-top: var(--space-md);
}

.section-header:not(.section-header--center) .section-title::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 2.25rem;
  height: 1px;
  background: var(--accent);
  opacity: 0.5;
}

.section-header--center {
  text-align: center;
  margin-inline: auto;
  max-width: 40rem;
  margin-bottom: clamp(3rem, 7vw, 4.5rem);
}

.section-header--center .section-title::after {
  content: "";
  display: block;
  width: 2.25rem;
  height: 1px;
  margin: var(--space-md) auto 0;
  background: var(--accent);
  opacity: 0.5;
}

.section-header--narrow {
  max-width: 32rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.875rem, 3.2vw, 2.375rem);
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: -0.03em;
  margin: 0 0 var(--space-sm);
  color: var(--text-primary);
  font-feature-settings: "kern" 1, "liga" 1;
}

.section-intro {
  margin: 0;
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: -0.01em;
  color: var(--text-secondary);
  line-height: 1.7;
}

.section-header--center .section-intro {
  margin-inline: auto;
  max-width: 36em;
}

/* ----- Trust ----- */

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

.trust-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--border-line);
  background: var(--border-line);
}

.trust-card {
  background: var(--bg-elevated);
  padding: var(--space-lg) var(--space-md) var(--space-lg) var(--space-lg);
  min-height: 11.5rem;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-line);
}

.trust-card:last-child {
  border-right: none;
}

.trust-stat {
  display: block;
  font-family: var(--font-display);
  font-size: 2.125rem;
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.trust-stat--icon {
  font-size: 0;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.trust-stat--icon svg {
  display: block;
}

.trust-card-title {
  font-family: var(--font-ui);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin: 0 0 var(--space-xs);
}

.trust-card p {
  margin: 0;
  margin-top: auto;
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ----- Applications ----- */

.applications {
  border-bottom: 1px solid var(--border-line);
}

.cards-grid--apps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  background: var(--border-line);
  border: 1px solid var(--border-line);
  align-items: stretch;
}

.app-card {
  background: var(--bg-elevated);
  border: none;
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 100%;
  transition: background-color var(--transition);
}

.app-card:hover {
  background: #fff;
}

.app-card-visual {
  flex-shrink: 0;
  height: 5.25rem;
  min-height: 5.25rem;
  background:
    linear-gradient(112deg, var(--bg-muted) 0%, #d5d9e0 100%),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 22px,
      rgba(92, 107, 122, 0.05) 22px,
      rgba(92, 107, 122, 0.05) 23px
    );
  border-bottom: 1px solid var(--border-line);
}

.app-card-visual--grid {
  background:
    linear-gradient(132deg, #e0e4ea 0%, #c5ccd6 100%),
    linear-gradient(90deg, rgba(92, 107, 122, 0.07) 1px, transparent 1px),
    linear-gradient(rgba(92, 107, 122, 0.07) 1px, transparent 1px);
  background-size: 100% 100%, 22px 22px, 22px 22px;
}

.app-card-visual--horizontal {
  background: linear-gradient(178deg, #eef0f4 0%, #c3cad3 100%);
  box-shadow: inset 0 -20px 32px rgba(70, 88, 105, 0.06);
}

.app-card-visual--clinical {
  background: linear-gradient(158deg, #f0f2f5 0%, #d9dfe8 52%, #b4bec9 100%);
}

.app-card-visual--commercial {
  background: linear-gradient(22deg, #dadfe6 0%, #9eacb8 48%, #7d8c9a 100%);
}

.app-card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--space-md) var(--space-md) var(--space-lg);
  min-height: 0;
}

.app-card-title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-xs);
  color: var(--text-primary);
  line-height: 1.28;
}

.app-card p {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: -0.008em;
  color: var(--text-secondary);
  line-height: 1.62;
  flex: 1;
}

/* ----- Systems ----- */

.systems {
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-line);
}

.cards-grid--systems {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--border-line);
  border: 1px solid var(--border-line);
}

.system-card {
  border: none;
  border-radius: var(--radius);
  padding: var(--space-lg) var(--space-lg) var(--space-xl);
  background: var(--bg-elevated);
  display: flex;
  flex-direction: column;
  min-height: 100%;
  transition: background-color var(--transition);
}

.system-card:hover {
  background: #fff;
}

.system-card--accent {
  background: var(--bg-elevated);
  box-shadow: inset 0 0 0 1px var(--accent-soft);
}

.system-card--accent:hover {
  background: #fff;
}

.system-index {
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.system-card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: -0.025em;
  margin: 0 0 var(--space-sm);
  line-height: 1.22;
}

.system-card-lead {
  margin: 0 0 var(--space-lg);
  font-size: 0.875rem;
  font-weight: 300;
  letter-spacing: -0.01em;
  color: var(--text-secondary);
  line-height: 1.65;
}

.system-meta {
  margin: 0;
  margin-top: auto;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-line);
}

.system-meta > div {
  margin-bottom: var(--space-md);
}

.system-meta > div:last-child {
  margin-bottom: 0;
}

.system-meta dt {
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 0.35rem;
}

.system-meta dd {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ----- Advantages ----- */

.advantages {
  border-bottom: 1px solid var(--border-line);
}

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

.advantage-list > li {
  display: grid;
  grid-template-columns: 3.5rem minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
  align-items: start;
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--border-line);
  background: transparent;
}

.advantage-list > li:last-child {
  border-bottom-color: var(--border-strong);
}

.advantage-num {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--accent-muted);
  line-height: 1.2;
  padding-top: 0.15em;
  text-align: right;
}

.advantage-list h3 {
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  margin: 0 0 var(--space-xs);
  color: var(--text-primary);
}

.advantage-list p {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 300;
  letter-spacing: -0.01em;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ----- Editorial ----- */

.editorial {
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-line);
}

.editorial-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(2rem, 6vw, 4.5rem);
  align-items: start;
}

.editorial-aside {
  padding-right: var(--space-lg);
  border-right: 1px solid var(--border-line);
}

.editorial-title {
  margin-bottom: 0;
}

.editorial-body {
  padding-top: 0.25rem;
}

.editorial-body p {
  margin: 0 0 var(--space-lg);
  font-size: 1.0625rem;
  font-weight: 300;
  letter-spacing: -0.012em;
  color: var(--text-secondary);
  line-height: 1.75;
}

.editorial-points {
  margin: 0;
  padding: 0;
  list-style: none;
}

.editorial-points li {
  position: relative;
  padding-left: 1.125rem;
  margin-bottom: var(--space-sm);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text-secondary);
  line-height: 1.62;
}

.editorial-points li:last-child {
  margin-bottom: 0;
}

.editorial-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 4px;
  height: 1px;
  background: var(--accent);
  opacity: 0.65;
}

/* ----- FAQ ----- */

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

.faq .section-header--center {
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.faq-list {
  max-width: 42rem;
  margin-inline: auto;
  border-top: 1px solid var(--border-strong);
}

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

.faq-item:last-child {
  border-bottom-color: var(--border-strong);
}

.faq-summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-md) 0 var(--space-md) 0;
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.45;
  color: var(--text-primary);
  transition: color var(--transition);
}

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

.faq-summary::marker {
  content: "";
}

.faq-summary::after {
  content: "";
  flex-shrink: 0;
  width: 0.5rem;
  height: 0.5rem;
  margin-top: 0.35em;
  border-right: 1px solid var(--accent);
  border-bottom: 1px solid var(--accent);
  transform: rotate(45deg);
  opacity: 0.65;
  transition: transform var(--transition), opacity var(--transition);
}

.faq-item[open] .faq-summary::after {
  transform: rotate(-135deg);
  margin-top: 0.55em;
}

.faq-summary:hover {
  color: var(--accent);
}

.faq-summary:hover::after {
  opacity: 1;
}

.faq-answer {
  padding: 0 1.75rem var(--space-md) 0;
}

.faq-answer p {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 300;
  letter-spacing: -0.01em;
  line-height: 1.68;
  color: var(--text-secondary);
}

/* ----- Contact ----- */

.contact .section-header {
  margin-bottom: var(--space-lg);
}

.contact-block {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  padding: var(--space-xl);
  background: var(--bg-elevated);
  border: 1px solid var(--border-line);
  border-radius: var(--radius);
  width: 100%;
  max-width: none;
  margin-inline: 0;
  align-items: start;
}

.contact-cell {
  border-right: 1px solid var(--border-line);
  min-height: 100%;
}

.contact-cell:nth-child(1) {
  padding-right: clamp(1rem, 3vw, 1.75rem);
}

.contact-cell:nth-child(2) {
  padding-left: clamp(1rem, 3vw, 1.75rem);
  padding-right: clamp(1rem, 3vw, 1.75rem);
}

.contact-cell:nth-child(3) {
  padding-left: clamp(1rem, 3vw, 1.75rem);
  border-right: none;
}

.contact-field-group {
  margin: 0;
  padding: 0;
}

.contact-field-group dt {
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin: 0 0 0.5rem;
}

.contact-field-group dt:not(:first-of-type) {
  margin-top: var(--space-lg);
}

.contact-field-group dd {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.55;
  color: var(--text-primary);
}

.contact-address {
  font-style: normal;
  font-size: 0.9375rem;
  font-weight: 300;
  letter-spacing: -0.01em;
  line-height: 1.75;
  color: var(--text-secondary);
}

.contact-field-group a {
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-strong);
  transition: color var(--transition), border-color var(--transition);
}

.contact-field-group a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent-muted);
}

/* ----- Footer ----- */

.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: var(--space-lg) 0 var(--space-md);
  margin-top: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md) var(--space-lg);
  align-items: start;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 400;
  letter-spacing: -0.03em;
  display: block;
  color: #f2f3f5;
  margin-bottom: 0.375rem;
}

.footer-sub {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--footer-muted);
  line-height: 1.55;
  max-width: 20rem;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
  text-align: right;
}

.footer-contact-external {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
  margin-top: 0.125rem;
}

.footer-contact a {
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--footer-text);
  border-bottom: 1px solid rgba(184, 189, 198, 0.2);
  transition: color var(--transition), border-color var(--transition);
}

.footer-contact a:hover {
  color: #fff;
  border-bottom-color: rgba(255, 255, 255, 0.3);
}

.footer-copy {
  grid-column: 1 / -1;
  margin: var(--space-md) 0 0;
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  font-size: 0.6875rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--footer-muted);
  text-align: center;
}

/* ----- Responsive ----- */

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    align-items: start;
  }

  .hero-visual {
    order: -1;
    width: 100%;
    max-width: min(36rem, 100%);
    margin-inline: auto;
    align-self: stretch;
  }

  .hero-media {
    max-height: none;
    aspect-ratio: 16 / 10;
  }

  .trust-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .trust-card {
    border-right: 1px solid var(--border-line);
    border-bottom: 1px solid var(--border-line);
    min-height: 10rem;
  }

  .trust-card:nth-child(2n) {
    border-right: none;
  }

  .trust-card:nth-last-child(-n + 2) {
    border-bottom: none;
  }

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

  .cards-grid--systems {
    grid-template-columns: 1fr;
  }

  .editorial-aside {
    padding-right: 0;
    border-right: none;
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border-line);
  }

  .editorial-layout {
    grid-template-columns: 1fr;
  }

  .contact-block {
    grid-template-columns: 1fr;
    padding: var(--space-lg);
  }

  .contact-cell {
    padding: var(--space-md) 0;
    border-right: none;
    border-bottom: 1px solid var(--border-line);
  }

  .contact-cell:nth-child(1),
  .contact-cell:nth-child(2),
  .contact-cell:nth-child(3) {
    padding-left: 0;
    padding-right: 0;
  }

  .contact-cell:first-child {
    padding-top: 0;
  }

  .contact-cell:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .contact-field-group dt:not(:first-of-type) {
    margin-top: var(--space-md);
  }
}

@media (max-width: 720px) {
  :root {
    --container: calc(100% - 2.25rem);
  }

  .nav-toggle {
    display: flex;
  }

  .primary-nav {
    position: fixed;
    inset: var(--header-h) 0 0 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-lg);
    gap: var(--space-md);
    border-top: 1px solid var(--border-line);
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 240ms cubic-bezier(0.25, 0.1, 0.25, 1), opacity 240ms ease, visibility 240ms;
  }

  .primary-nav.is-open {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .nav-list a {
    font-size: 0.8125rem;
  }

  .btn-header {
    width: 100%;
  }

  body.nav-open {
    overflow: hidden;
  }

  .brand-logo {
    height: 2.375rem;
    max-width: min(176px, 46vw);
  }

  .brand-block {
    gap: 0.625rem;
  }

  .brand-line {
    font-size: 0.5625rem;
    letter-spacing: 0.14em;
  }

  .brand-lockup-divider {
    min-height: 1.625rem;
    max-height: 2.375rem;
  }

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

  .trust-card {
    border-right: none;
    border-bottom: 1px solid var(--border-line);
    min-height: 0;
  }

  .trust-card:last-child {
    border-bottom: none;
  }

  .cards-grid--apps {
    grid-template-columns: 1fr;
  }

  .advantage-list > li {
    grid-template-columns: 2.5rem minmax(0, 1fr);
  }

  .advantage-num {
    text-align: left;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-md);
  }

  .footer-sub {
    margin-inline: auto;
  }

  .footer-contact {
    align-items: center;
    text-align: center;
  }

  .footer-contact-external {
    align-items: center;
  }
}

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

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