:root {
  --color-ink: #10100e;
  --color-graphite: #26251f;
  --color-muted: #6c685f;
  --color-line: #d8d1c2;
  --color-soft-line: #ebe5d8;
  --color-surface: #f7f6ef;
  --color-surface-strong: #fffdf6;
  --color-green: #285b52;
  --color-brass: #b99b5f;
  --color-oxide: #a6452d;
  --color-white: #ffffff;

  --font-heading: "Instrument Serif", Georgia, serif;
  --font-body: "IBM Plex Sans", Arial, sans-serif;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-soft: 0 24px 80px rgba(16, 16, 14, 0.12);
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-ink);
  background:
    linear-gradient(90deg, rgba(16, 16, 14, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(16, 16, 14, 0.035) 1px, transparent 1px),
    var(--color-surface);
  background-size: 80px 80px, 80px 80px, auto;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.45;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 240 240' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.16'/%3E%3C/svg%3E");
}

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

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

button {
  color: inherit;
}

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

::selection {
  color: var(--color-surface-strong);
  background: var(--color-green);
}

:focus-visible {
  outline: 2px solid var(--color-oxide);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: var(--space-4);
  left: var(--space-4);
  z-index: 2000;
  padding: var(--space-3) var(--space-4);
  color: var(--color-surface-strong);
  background: var(--color-ink);
  border-radius: var(--radius-sm);
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

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

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

.container,
.hero-inner,
.header-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  border-bottom: 1px solid rgba(16, 16, 14, 0.1);
  background: rgba(247, 246, 239, 0.86);
  backdrop-filter: blur(18px);
  transition:
    background 180ms ease,
    box-shadow 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(247, 246, 239, 0.95);
  box-shadow: 0 12px 40px rgba(16, 16, 14, 0.08);
}

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  line-height: 1;
}

.brand-mark {
  display: inline-grid;
  width: 18px;
  height: 18px;
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-sm);
  place-items: center;
  transform: rotate(45deg);
}

.brand-mark::after {
  width: 6px;
  height: 6px;
  content: "";
  background: var(--color-brass);
  border-radius: 50%;
}

.site-nav {
  display: none;
  gap: var(--space-2);
  align-items: center;
}

.site-nav a {
  padding: 10px 12px;
  color: var(--color-muted);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  transition:
    color 180ms ease,
    background 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-ink);
  background: rgba(16, 16, 14, 0.06);
}

.site-nav .nav-cta {
  color: var(--color-surface-strong);
  background: var(--color-ink);
}

.site-nav .nav-cta:hover,
.site-nav .nav-cta:focus-visible {
  color: var(--color-surface-strong);
  background: var(--color-green);
}

.nav-toggle {
  display: inline-flex;
  width: 44px;
  height: 44px;
  padding: 0;
  cursor: pointer;
  background: transparent;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  width: 18px;
  height: 1px;
  background: var(--color-ink);
  transition:
    transform 180ms ease,
    opacity 180ms ease;
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.site-nav.is-open {
  position: fixed;
  top: calc(var(--header-height) + var(--space-3));
  right: var(--space-4);
  left: var(--space-4);
  display: grid;
  padding: var(--space-3);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface-strong);
  box-shadow: var(--shadow-soft);
}

.site-nav.is-open a {
  padding: var(--space-4);
}

.section {
  padding: var(--space-9) 0;
}

.js .section-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 600ms ease,
    transform 600ms ease;
}

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

.hero {
  display: flex;
  min-height: 76svh;
  padding: var(--space-7) 0 var(--space-8);
  align-items: center;
}

.hero-inner {
  display: grid;
  gap: var(--space-7);
  align-items: center;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 var(--space-4);
  color: var(--color-green);
  font-size: 0.94rem;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: var(--font-heading);
  font-weight: 400;
  letter-spacing: 0;
}

h1 {
  margin-bottom: var(--space-4);
  font-size: 5.1rem;
  line-height: 0.9;
}

h2 {
  margin-bottom: var(--space-5);
  font-size: 3rem;
  line-height: 1;
}

h3 {
  margin-bottom: var(--space-3);
  color: var(--color-graphite);
  font-size: 1.06rem;
  line-height: 1.25;
}

p {
  color: var(--color-muted);
}

.hero-statement {
  max-width: 760px;
  margin-bottom: var(--space-5);
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-size: 2.05rem;
  line-height: 1.08;
}

.hero-text {
  max-width: 640px;
  margin-bottom: var(--space-6);
  font-size: 1.06rem;
}

.hero-actions,
.contact-actions {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  min-height: 48px;
  padding: 13px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  transition:
    transform 180ms ease,
    color 180ms ease,
    background 180ms ease,
    border-color 180ms ease;
}

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

.button-primary {
  color: var(--color-surface-strong);
  background: var(--color-ink);
  border-color: var(--color-ink);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--color-green);
  border-color: var(--color-green);
}

.button-secondary {
  color: var(--color-ink);
  background: rgba(255, 253, 246, 0.58);
  border-color: var(--color-line);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--color-ink);
  background: var(--color-surface-strong);
}

.trust-list {
  display: flex;
  gap: var(--space-3);
  padding: 0;
  margin: var(--space-6) 0 0;
  color: var(--color-muted);
  list-style: none;
  flex-wrap: wrap;
}

.trust-list li {
  padding-left: var(--space-3);
  border-left: 2px solid var(--color-brass);
  font-size: 0.95rem;
  font-weight: 600;
}

.hero-visual {
  min-width: 0;
}

.signal-board {
  position: relative;
  overflow: hidden;
  min-height: 430px;
  padding: var(--space-5);
  color: var(--color-surface-strong);
  background:
    linear-gradient(90deg, rgba(255, 253, 246, 0.07) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 253, 246, 0.07) 1px, transparent 1px),
    #141411;
  background-size: 38px 38px, 38px 38px, auto;
  border: 1px solid rgba(185, 155, 95, 0.42);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.signal-board::before {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  bottom: var(--space-5);
  width: 1px;
  content: "";
  background: linear-gradient(180deg, transparent, rgba(185, 155, 95, 0.72), transparent);
}

.signal-board::after {
  position: absolute;
  right: 14%;
  bottom: 18%;
  width: 180px;
  height: 180px;
  content: "";
  border: 1px solid rgba(185, 155, 95, 0.2);
  border-radius: 50%;
  transform: translate(50%, 50%);
}

.board-header {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  color: rgba(247, 246, 239, 0.74);
  font-size: 0.86rem;
  font-weight: 700;
}

.decision-schema {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 300px;
  margin: var(--space-6) 0;
  grid-template-columns: minmax(0, 1fr) 88px minmax(0, 1.12fr);
  gap: var(--space-4);
  align-items: center;
}

.schema-panel {
  min-height: 248px;
  padding: var(--space-5);
  background: rgba(20, 20, 17, 0.82);
  border: 1px solid rgba(247, 246, 239, 0.16);
  border-radius: var(--radius-md);
  box-shadow: inset 0 1px 0 rgba(255, 253, 246, 0.08);
}

.schema-input {
  border-top: 3px solid var(--color-oxide);
}

.schema-output {
  border-top: 3px solid var(--color-brass);
  background: rgba(247, 246, 239, 0.08);
}

.panel-label {
  margin-bottom: var(--space-3);
  color: rgba(247, 246, 239, 0.58);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}

.schema-panel h3 {
  margin-bottom: var(--space-5);
  color: var(--color-surface-strong);
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 400;
}

.schema-panel ul {
  display: grid;
  gap: var(--space-3);
  padding: 0;
  margin: 0;
  list-style: none;
}

.schema-panel li,
.output-list span {
  display: flex;
  min-height: 40px;
  padding: var(--space-3);
  color: rgba(247, 246, 239, 0.78);
  background: rgba(255, 253, 246, 0.06);
  border: 1px solid rgba(247, 246, 239, 0.1);
  border-radius: var(--radius-sm);
  align-items: center;
  font-size: 0.9rem;
  font-weight: 600;
}

.schema-filter {
  position: relative;
  display: grid;
  min-height: 248px;
  place-items: center;
}

.flow-line {
  position: absolute;
  top: 50%;
  right: -18px;
  left: -18px;
  height: 1px;
  background: linear-gradient(90deg, rgba(166, 69, 45, 0.75), rgba(185, 155, 95, 0.9));
}

.flow-line::before,
.flow-line::after {
  position: absolute;
  top: 50%;
  width: 8px;
  height: 8px;
  content: "";
  background: var(--color-brass);
  border-radius: 50%;
  transform: translateY(-50%);
}

.flow-line::before {
  left: 0;
  background: var(--color-oxide);
}

.flow-line::after {
  right: 0;
}

.filter-core {
  position: relative;
  z-index: 1;
  display: grid;
  width: 78px;
  height: 78px;
  color: var(--color-ink);
  background: var(--color-brass);
  border: 1px solid rgba(255, 253, 246, 0.42);
  border-radius: 50%;
  cursor: pointer;
  place-items: center;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  box-shadow:
    0 0 0 12px rgba(185, 155, 95, 0.12),
    0 18px 48px rgba(0, 0, 0, 0.25);
  transition:
    transform 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease;
}

.filter-core:hover {
  transform: scale(1.04);
  box-shadow:
    0 0 0 16px rgba(185, 155, 95, 0.14),
    0 22px 54px rgba(0, 0, 0, 0.28);
}

.output-list {
  display: grid;
  gap: var(--space-3);
}

.output-list span {
  color: var(--color-ink);
  background: rgba(185, 155, 95, 0.92);
  border-color: rgba(185, 155, 95, 0.92);
}

.schema-panel li,
.output-list span {
  transition:
    color 180ms ease,
    background 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.signal-board[data-active-step="cadrer"] [data-schema-item="cadrer"],
.signal-board[data-active-step="choisir"] [data-schema-item="choisir"],
.signal-board[data-active-step="construire"] [data-schema-item="construire"],
.signal-board[data-active-step="transmettre"] [data-schema-item="transmettre"] {
  color: var(--color-ink);
  background: var(--color-brass);
  border-color: var(--color-brass);
  transform: translateX(3px);
}

.signal-board[data-active-step="choisir"] .filter-core {
  background: #d3b773;
}

.signal-board[data-active-step="construire"] .filter-core {
  color: var(--color-surface-strong);
  background: var(--color-green);
}

.signal-board[data-active-step="transmettre"] .filter-core {
  color: var(--color-surface-strong);
  background: var(--color-oxide);
}

.signal-board[data-active-step="choisir"] .flow-line {
  background: linear-gradient(90deg, rgba(185, 155, 95, 0.7), rgba(211, 183, 115, 0.95));
}

.signal-board[data-active-step="construire"] .flow-line {
  background: linear-gradient(90deg, rgba(185, 155, 95, 0.75), rgba(40, 91, 82, 0.95));
}

.signal-board[data-active-step="transmettre"] .flow-line {
  background: linear-gradient(90deg, rgba(40, 91, 82, 0.8), rgba(166, 69, 45, 0.95));
}

.method-strip {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid rgba(247, 246, 239, 0.16);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.method-strip button {
  min-height: 44px;
  display: grid;
  padding: 0 var(--space-2);
  place-items: center;
  color: rgba(247, 246, 239, 0.78);
  background: transparent;
  border: 0;
  border-right: 1px solid rgba(247, 246, 239, 0.14);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 700;
  transition:
    color 180ms ease,
    background 180ms ease;
}

.method-strip button:last-child {
  border-right: 0;
}

.method-strip button:hover,
.method-strip button:focus-visible,
.method-strip button[aria-pressed="true"] {
  color: var(--color-ink);
  background: var(--color-brass);
}

.schema-detail {
  position: relative;
  z-index: 1;
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: rgba(255, 253, 246, 0.07);
  border: 1px solid rgba(247, 246, 239, 0.16);
  border-radius: var(--radius-sm);
}

.detail-label {
  margin-bottom: var(--space-2);
  color: rgba(247, 246, 239, 0.56);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}

.schema-detail h3 {
  margin-bottom: var(--space-2);
  color: var(--color-surface-strong);
  font-size: 1.05rem;
}

.schema-detail p:last-child {
  margin-bottom: 0;
  color: rgba(247, 246, 239, 0.76);
  font-size: 0.92rem;
}

.split-layout {
  display: grid;
  gap: var(--space-6);
  align-items: start;
}

.text-stack p {
  max-width: 650px;
  font-size: 1.08rem;
}

.section-intro {
  max-width: 760px;
  margin-bottom: var(--space-7);
}

.section-intro p {
  font-size: 1.05rem;
}

.problem-grid,
.service-grid,
.usefulness-grid {
  display: grid;
  gap: var(--space-4);
}

.problem-item {
  min-height: 250px;
  padding: var(--space-5);
  background: rgba(255, 253, 246, 0.62);
  border: 1px solid var(--color-soft-line);
  border-radius: var(--radius-md);
}

.problem-item span,
.service-index {
  display: inline-flex;
  margin-bottom: var(--space-5);
  color: var(--color-oxide);
  font-weight: 700;
}

.approach {
  color: var(--color-surface-strong);
  background: var(--color-ink);
}

.approach p,
.approach .section-kicker {
  color: rgba(247, 246, 239, 0.74);
}

.approach h2,
.approach h3 {
  color: var(--color-surface-strong);
}

.operating-table {
  border-top: 1px solid rgba(247, 246, 239, 0.24);
}

.table-row {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-5) 0;
  border-bottom: 1px solid rgba(247, 246, 239, 0.18);
}

.table-row > span {
  color: var(--color-brass);
  font-family: var(--font-heading);
  font-size: 1.75rem;
}

.table-row p {
  max-width: 720px;
  margin-bottom: 0;
}

.service-card {
  position: relative;
  min-height: 260px;
  padding: var(--space-5);
  overflow: hidden;
  background: var(--color-surface-strong);
  border: 1px solid var(--color-soft-line);
  border-radius: var(--radius-md);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.service-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  content: "";
  background: var(--color-green);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 220ms ease;
}

.service-card:hover {
  border-color: rgba(40, 91, 82, 0.34);
  box-shadow: 0 18px 42px rgba(16, 16, 14, 0.08);
  transform: translateY(-4px);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card p {
  margin-bottom: 0;
}

.usefulness {
  background:
    linear-gradient(90deg, rgba(185, 155, 95, 0.16) 1px, transparent 1px),
    var(--color-green);
  background-size: 72px 72px, auto;
}

.usefulness-inner {
  display: grid;
  gap: var(--space-7);
  color: var(--color-surface-strong);
}

.usefulness h2,
.usefulness h3 {
  color: var(--color-surface-strong);
}

.usefulness .section-kicker,
.usefulness p {
  color: rgba(247, 246, 239, 0.78);
}

.usefulness-grid article {
  padding-top: var(--space-5);
  border-top: 1px solid rgba(247, 246, 239, 0.25);
}

.final-cta {
  padding-bottom: var(--space-10);
}

.contact-panel {
  display: grid;
  gap: var(--space-7);
  padding: var(--space-6);
  background: var(--color-surface-strong);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.contact-panel h2 {
  max-width: 740px;
}

.contact-panel p {
  max-width: 680px;
}

.contact-actions {
  align-content: start;
}

.copy-feedback {
  width: 100%;
  min-height: 24px;
  margin: var(--space-2) 0 0;
  color: var(--color-green);
  font-size: 0.94rem;
  font-weight: 700;
}

.site-footer {
  padding: var(--space-6) 0;
  color: rgba(247, 246, 239, 0.72);
  background: var(--color-ink);
}

.footer-inner {
  display: grid;
  gap: var(--space-4);
}

.site-footer .brand,
.site-footer a {
  color: var(--color-surface-strong);
}

.site-footer .brand-mark {
  border-color: var(--color-surface-strong);
}

.site-footer p {
  margin-bottom: 0;
  color: rgba(247, 246, 239, 0.72);
}

@media (min-width: 768px) {
  .container,
  .hero-inner,
  .header-inner {
    width: min(1180px, calc(100% - 56px));
  }

  .nav-toggle {
    display: none;
  }

  .site-nav {
    display: flex;
  }

  .hero {
    min-height: 82svh;
    padding: var(--space-8) 0 var(--space-9);
  }

  h1 {
    font-size: 7.6rem;
  }

  h2 {
    font-size: 4.2rem;
  }

  .hero-statement {
    font-size: 2.65rem;
  }

  .split-layout,
  .hero-inner,
  .usefulness-inner,
  .contact-panel {
    grid-template-columns: 0.9fr 1.1fr;
  }

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

  .table-row {
    grid-template-columns: 220px 1fr;
    padding: var(--space-6) 0;
  }

  .usefulness-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-6);
  }

  .footer-inner {
    grid-template-columns: auto 1fr auto;
    align-items: center;
  }
}

@media (min-width: 1280px) {
  .container,
  .hero-inner,
  .header-inner {
    width: min(1240px, calc(100% - 80px));
  }

  h1 {
    font-size: 9.4rem;
  }

  .hero-statement {
    font-size: 3rem;
  }

  .signal-board {
    min-height: 520px;
  }

  .decision-schema {
    min-height: 380px;
  }
}

@media (max-width: 720px) {
  .decision-schema {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .schema-panel {
    min-height: auto;
  }

  .schema-filter {
    min-height: 88px;
  }

  .flow-line {
    top: -12px;
    bottom: -12px;
    left: 50%;
    width: 1px;
    height: auto;
    background: linear-gradient(180deg, rgba(166, 69, 45, 0.75), rgba(185, 155, 95, 0.9));
  }

  .flow-line::before,
  .flow-line::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .flow-line::before {
    top: 0;
  }

  .flow-line::after {
    top: auto;
    right: auto;
    bottom: 0;
  }

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

  .method-strip button:nth-child(2) {
    border-right: 0;
  }

  .method-strip button:nth-child(3),
  .method-strip button:nth-child(4) {
    border-top: 1px solid rgba(247, 246, 239, 0.14);
  }

  .signal-board[data-active-step="cadrer"] [data-schema-item="cadrer"],
  .signal-board[data-active-step="choisir"] [data-schema-item="choisir"],
  .signal-board[data-active-step="construire"] [data-schema-item="construire"],
  .signal-board[data-active-step="transmettre"] [data-schema-item="transmettre"] {
    transform: translateY(-2px);
  }
}

@media (max-width: 460px) {
  :root {
    --header-height: 66px;
  }

  body {
    background-size: 56px 56px, 56px 56px, auto;
  }

  .container,
  .hero-inner,
  .header-inner {
    width: min(100% - 24px, 1180px);
  }

  .section {
    padding: var(--space-8) 0;
  }

  .hero {
    min-height: auto;
    padding: var(--space-6) 0 var(--space-8);
  }

  h1 {
    font-size: 4.35rem;
  }

  h2 {
    font-size: 2.45rem;
  }

  .hero-statement {
    font-size: 1.78rem;
  }

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

  .button {
    width: 100%;
  }

  .signal-board {
    min-height: auto;
    padding: var(--space-4);
  }

  .board-header {
    gap: var(--space-3);
    flex-direction: column;
  }

  .schema-panel {
    padding: var(--space-4);
  }

  .schema-panel h3 {
    font-size: 1.75rem;
  }

  .method-strip button {
    min-height: 42px;
    font-size: 0.8rem;
  }

  .contact-panel {
    padding: var(--space-5);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .js .section-reveal {
    opacity: 1;
    transform: none;
  }
}