:root {
  --color-petrole: #1F4E5F;
  --color-petrole-dark: #173F4D;
  --color-sauge: #8FAF9D;
  --color-yellow: #FDBF10;
  --color-dark: #58656D;
  --color-white: #FFFFFF;
  --color-background: #F7F7F4;
  --color-form: #FAF7EA;
  --color-yellow-soft: #FFE296;
  --font-primary: "Montserrat", Arial, Helvetica, sans-serif;
  --container: 1280px;
  --container-wide: 1440px;
  --radius-small: 5px;
  --radius-medium: 12px;
  --radius-pill: 999px;
  --transition-fast: 160ms ease;
  --transition-normal: 250ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--color-petrole);
  background: var(--color-white);
  font-family: var(--font-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

button,
input,
textarea {
  font: inherit;
}

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

:focus-visible {
  outline: 3px solid var(--color-yellow);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 999;
  top: 12px;
  left: 12px;
  transform: translateY(-160%);
  padding: 10px 14px;
  color: var(--color-white);
  background: var(--color-petrole-dark);
  border-radius: var(--radius-small);
}

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

.container {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}

.section {
  padding-block: clamp(72px, 9vw, 140px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: clamp(48px, 6vw, 82px);
}

.section-heading--narrow {
  max-width: 620px;
}

.section-heading--wide-copy {
  max-width: 920px;
}

.section-heading h2,
.mission h2,
.membership h2,
.social h2,
.contact h2 {
  margin: 0;
  font-size: clamp(2rem, 4.5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.035em;
}

.section-heading p {
  max-width: 65ch;
  margin: 14px 0 0;
  color: var(--color-dark);
  font-size: clamp(1rem, 1.2vw, 1.13rem);
}

.eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow--light {
  color: rgba(255, 255, 255, 0.86);
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0.86rem 1.5rem;
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

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

.button--small {
  min-height: 42px;
  padding-inline: 1.15rem;
  font-size: 0.7rem;
}

.button--primary {
  color: var(--color-white);
  background: var(--color-petrole);
}

.button--primary:hover {
  background: var(--color-petrole-dark);
}

.button--secondary {
  color: var(--color-petrole);
  background: transparent;
  border-color: var(--color-petrole);
}

.button--secondary:hover {
  color: var(--color-white);
  background: var(--color-petrole);
}

.button--light {
  color: var(--color-petrole);
  background: var(--color-white);
}

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

.button--outline-light {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.85);
}

.button--outline-light:hover {
  color: var(--color-petrole);
  background: var(--color-white);
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(31, 78, 95, 0.12);
  backdrop-filter: blur(8px);
}

.site-header__inner {
  position: relative;
  display: flex;
  min-height: 84px;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  color: var(--color-petrole);
  line-height: 0.82;
  text-decoration: none;
}

.brand__small {
  margin-left: 22px;
  margin-bottom: 5px;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.brand__large {
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2vw, 30px);
}

.main-nav > a:not(.button) {
  position: relative;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.main-nav > a:not(.button)::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 1px;
  content: "";
  background: var(--color-petrole);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

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

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 10px;
  border: 1px solid rgba(31, 78, 95, 0.25);
  border-radius: var(--radius-small);
  color: var(--color-petrole);
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  margin-block: 5px;
  background: currentColor;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.hero {
  position: relative;
  isolation: isolate;
  min-height: clamp(750px, 88vh, 920px);
  overflow: hidden;
  color: var(--color-white);
  background: var(--color-petrole);
}

.hero__shape {
  position: absolute;
  z-index: -1;
  top: clamp(-250px, -14vw, -120px);
  left: clamp(-210px, -8vw, -70px);
  width: clamp(490px, 43vw, 760px);
  aspect-ratio: 1.06 / 1;
  border-radius: 47% 53% 54% 46% / 54% 48% 52% 46%;
  background: var(--color-yellow);
  transform: rotate(-6deg);
}

.hero__grid {
  display: grid;
  min-height: inherit;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-template-rows: min-content minmax(130px, 1fr) auto minmax(90px, 0.5fr) auto;
  gap: clamp(20px, 2vw, 32px);
  padding-block: clamp(70px, 8vw, 112px) clamp(48px, 6vw, 78px);
}

.hero__brand {
  grid-column: 1 / span 4;
  align-self: start;
  margin: 28px 0 0 clamp(4px, 2vw, 36px);
  color: var(--color-petrole);
  line-height: 0.83;
}

.hero__brand span {
  display: block;
  margin-left: 42px;
  margin-bottom: 10px;
  font-size: clamp(1rem, 1.2vw, 1.25rem);
  font-weight: 500;
  letter-spacing: 0.06em;
}

.hero__brand strong {
  font-size: clamp(3.1rem, 4.9vw, 5.5rem);
  font-weight: 800;
  letter-spacing: 0.015em;
}

.hero__headline {
  grid-column: 7 / 13;
  grid-row: 1 / span 2;
  align-self: start;
  padding-top: clamp(40px, 5vw, 78px);
}

.hero__headline .eyebrow {
  margin: 0 0 18px;
}

.hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(3rem, 5.8vw, 6.7rem);
  font-weight: 500;
  line-height: 0.97;
  letter-spacing: -0.045em;
}

.hero__mission {
  grid-column: 2 / 9;
  grid-row: 3;
  max-width: 840px;
  margin: 0;
  font-size: clamp(1.35rem, 2.15vw, 2.35rem);
  font-weight: 500;
  line-height: 1.18;
  letter-spacing: -0.025em;
  text-transform: uppercase;
}

.hero__actions {
  display: flex;
  grid-column: 5 / 9;
  grid-row: 5;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.mission {
  min-height: 560px;
}

.principles {
  display: grid;
  width: min(100%, 1160px);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-block: 46px 54px;
  padding: 12px;
  border-radius: var(--radius-pill);
  background: var(--color-petrole);
}

.principles > button {
  display: flex;
  min-height: 56px;
  align-items: center;
  justify-content: center;
  padding-inline: 16px;
  border-radius: var(--radius-pill);
  color: var(--color-dark);
  background: var(--color-white);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.principles .principles__active {
  color: var(--color-petrole);
  background: var(--color-yellow-soft);
  box-shadow: inset 0 0 0 2px var(--color-yellow);
}

.mission__text {
  max-width: 740px;
  margin: 0 0 0 clamp(0px, 4vw, 46px);
  color: var(--color-dark);
  font-size: clamp(1rem, 1.2vw, 1.15rem);
}

.history {
  min-height: 630px;
  background: var(--color-background);
}

.timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(32px, 6vw, 100px);
  margin-top: clamp(64px, 7vw, 98px);
}

.timeline::before {
  position: absolute;
  top: 17px;
  right: 0;
  left: 0;
  height: 1px;
  content: "";
  background: rgba(88, 101, 109, 0.55);
}

.timeline__item {
  position: relative;
  padding-top: 50px;
}

.timeline__marker {
  position: absolute;
  z-index: 1;
  top: 4px;
  left: 0;
  width: 28px;
  height: 28px;
  border: 5px solid var(--color-background);
  border-radius: 50%;
}

.timeline__item--petrole .timeline__marker {
  background: var(--color-petrole);
}

.timeline__item--sauge .timeline__marker {
  background: var(--color-sauge);
}

.timeline__item--yellow .timeline__marker {
  background: var(--color-yellow);
}

.timeline time {
  display: block;
  margin-bottom: 14px;
  color: var(--color-petrole);
  font-size: 1rem;
  font-weight: 600;
}

.timeline h3 {
  margin: 0 0 10px;
  font-size: clamp(0.95rem, 1.2vw, 1.14rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.03em;
}

.timeline p {
  max-width: 36ch;
  margin: 0;
  color: var(--color-dark);
  font-size: 0.88rem;
  line-height: 1.55;
}

.impact {
  min-height: 500px;
}

.impact__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: clamp(50px, 7vw, 100px);
}

.impact__item {
  display: flex;
  min-height: 210px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 30px clamp(18px, 3vw, 48px);
  text-align: center;
}

.impact__item + .impact__item {
  border-left: 1px solid rgba(88, 101, 109, 0.23);
}

.impact__number {
  margin-bottom: 26px;
  font-size: clamp(4.6rem, 8vw, 8.4rem);
  font-weight: 500;
  line-height: 0.84;
  letter-spacing: -0.055em;
}

.impact__item > span {
  max-width: 28ch;
  color: var(--color-petrole);
  font-size: 0.95rem;
  line-height: 1.35;
}

.partners {
  min-height: 430px;
  padding-top: clamp(55px, 7vw, 95px);
}

.partners__logo-wrap {
  display: flex;
  min-height: 180px;
  align-items: center;
  justify-content: center;
  margin-top: clamp(30px, 5vw, 70px);
}

.partners__logo-wrap img {
  width: min(230px, 56vw);
}

.membership {
  min-height: 500px;
  padding-top: clamp(76px, 8vw, 120px);
}

.membership__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.membership h2 {
  max-width: 1040px;
}

.membership p {
  max-width: 980px;
  margin: 34px auto 0;
  color: var(--color-dark);
  font-size: clamp(1rem, 1.15vw, 1.12rem);
}

.membership__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 44px;
}

.social {
  min-height: 350px;
  padding-block: clamp(64px, 7vw, 96px);
  color: var(--color-petrole-dark);
  background: var(--color-yellow);
}

.social__intro {
  max-width: 900px;
}

.social h2 {
  font-size: clamp(2rem, 4vw, 4rem);
}

.social__intro p {
  max-width: 720px;
  margin: 18px 0 0;
  font-size: clamp(0.95rem, 1.1vw, 1.1rem);
  font-weight: 600;
  line-height: 1.35;
  text-transform: uppercase;
}

.social__links {
  display: grid;
  max-width: 850px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 70px;
  margin: clamp(55px, 6vw, 86px) auto 0;
}

.social__links a {
  display: flex;
  flex-direction: column;
  gap: 15px;
  padding-block: 10px;
  text-decoration: none;
}

.social__links a:hover strong {
  text-decoration: underline;
  text-underline-offset: 0.24em;
}

.social__links span {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.social__links strong {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.contact {
  min-height: 650px;
  padding-block: clamp(76px, 8vw, 118px);
  color: var(--color-white);
  background: var(--color-petrole);
}

.contact__grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(30px, 4vw, 70px);
  align-items: start;
}

.contact__copy {
  grid-column: 1 / 7;
}

.contact h2 {
  max-width: 760px;
  font-size: clamp(3.2rem, 6vw, 6.4rem);
  font-weight: 700;
  line-height: 0.88;
  letter-spacing: -0.05em;
}

.contact__copy p {
  max-width: 570px;
  margin: 30px 0 0;
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(1rem, 1.15vw, 1.13rem);
}

.site-footer {
  padding-block: 32px 42px;
  color: rgba(255, 255, 255, 0.9);
  background: var(--color-petrole-dark);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr auto;
  gap: 28px;
  align-items: end;
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1;
}

.site-footer__brand-small {
  margin-left: 2px;
  margin-bottom: 3px;
  color: var(--color-yellow);
  font-size: 0.9rem;
}

.site-footer__brand strong {
  color: var(--color-yellow);
  font-size: 2rem;
  font-weight: 800;
}

.site-footer__brand p {
  max-width: 410px;
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.72rem;
  line-height: 1.35;
}

.site-footer a,
.site-footer small {
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.78rem;
}

.site-footer a:hover {
  color: var(--color-white);
}

@media (max-width: 1050px) {
  .main-nav {
    gap: 16px;
  }

  .hero__headline {
    grid-column: 6 / 13;
  }

  .hero__mission {
    grid-column: 2 / 10;
  }
}

@media (max-width: 899px) {
  .site-header__inner {
    min-height: 76px;
  }

  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px 20px 24px;
    background: var(--color-white);
    border-bottom: 1px solid rgba(31, 78, 95, 0.14);
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav > a:not(.button) {
    display: block;
    min-height: 46px;
    padding: 13px 0;
    border-bottom: 1px solid rgba(31, 78, 95, 0.1);
  }

  .main-nav > a:not(.button)::after {
    display: none;
  }

  .main-nav__cta {
    margin-top: 16px;
  }

  .hero {
    min-height: 760px;
  }

  .hero__shape {
    top: -190px;
    left: -170px;
    width: clamp(520px, 80vw, 650px);
  }

  .hero__grid {
    grid-template-rows: 170px auto auto auto;
    align-content: start;
    padding-top: 42px;
  }

  .hero__brand {
    grid-column: 1 / 7;
    grid-row: 1;
    margin-top: 10px;
  }

  .hero__headline {
    grid-column: 3 / 13;
    grid-row: 2;
    padding-top: 30px;
  }

  .hero h1 {
    font-size: clamp(3rem, 8vw, 5.2rem);
  }

  .hero__mission {
    grid-column: 1 / 11;
    grid-row: 3;
    margin-top: 44px;
  }

  .hero__actions {
    grid-column: 1 / 10;
    grid-row: 4;
    justify-content: flex-start;
    margin-top: 46px;
  }

  .principles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-radius: 26px;
  }

  .timeline {
    grid-template-columns: 1fr;
    gap: 44px;
    margin-left: 12px;
    padding-left: 34px;
  }

  .timeline::before {
    top: 0;
    bottom: 0;
    left: 8px;
    width: 1px;
    height: auto;
  }

  .timeline__item {
    padding-top: 0;
  }

  .timeline__marker {
    top: -1px;
    left: -39px;
  }

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

  .impact__item {
    min-height: 190px;
  }

  .impact__item + .impact__item {
    border-top: 1px solid rgba(88, 101, 109, 0.23);
    border-left: 0;
  }

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

  .contact__copy {
    grid-column: 1;
  }


  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 599px) {
  .container {
    width: min(calc(100% - 40px), var(--container));
  }

  .section {
    padding-block: 72px;
  }

  .brand__large {
    font-size: 1.65rem;
  }

  .brand__small {
    margin-left: 18px;
    font-size: 0.7rem;
  }

  .hero {
    min-height: 770px;
  }

  .hero__shape {
    top: -145px;
    left: -168px;
    width: 500px;
  }

  .hero__grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    grid-template-rows: 160px auto auto auto;
    gap: 16px;
    padding-block: 32px 56px;
  }

  .hero__brand {
    grid-column: 1 / 5;
    grid-row: 1;
    margin: 6px 0 0 0;
  }

  .hero__brand span {
    margin-left: 28px;
    font-size: 0.84rem;
  }

  .hero__brand strong {
    font-size: 2.6rem;
  }

  .hero__headline {
    grid-column: 1 / 7;
    grid-row: 2;
    padding-top: 18px;
  }

  .hero__headline .eyebrow {
    margin-bottom: 10px;
  }

  .hero h1 {
    font-size: clamp(2.01rem, 10vw, 3rem);
    line-height: 0.95;
  }

  .hero__mission {
    grid-column: 1 / 7;
    grid-row: 3;
    margin-top: 34px;
    font-size: clamp(1.18rem, 5.2vw, 1.55rem);
  }

  .hero__actions {
    display: grid;
    grid-column: 1 / 7;
    grid-row: 4;
    grid-template-columns: 1fr;
    margin-top: 32px;
  }

  .hero__actions .button {
    width: 100%;
  }

  .principles {
    gap: 8px;
    margin-block: 34px 40px;
    padding: 9px;
  }

  .principles > button {
    min-height: 50px;
    padding-inline: 8px;
    font-size: 0.66rem;
  }

  .mission__text {
    margin-left: 0;
  }

  .timeline {
    margin-top: 52px;
  }

  .impact__number {
    font-size: clamp(4.8rem, 24vw, 6.5rem);
  }

  .membership__actions {
    width: 100%;
  }

  .membership__actions .button {
    width: 100%;
  }

  .social__links {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-top: 46px;
  }

  .contact h2 {
    font-size: clamp(3.1rem, 15vw, 4.7rem);
  }


  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  .site-footer__brand,
  .site-footer a,
  .site-footer small {
    grid-column: 1;
  }
}

@media (min-width: 1600px) {
  .hero__grid {
    padding-top: 96px;
  }

  .hero h1 {
    font-size: 6.9rem;
  }
}

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

/* Targeted layout refinements, preserving the existing palette and sections. */
.brand { max-width: 390px; line-height: 1.35; }
.brand__small { margin-left: 0; margin-bottom: 0; }
.nav-toggle { flex-shrink: 0; }
.hero { min-height: auto; }
.hero__grid {
  width: min(calc(100% - 64px), 1600px);
  grid-template-columns: minmax(180px, 0.7fr) minmax(0, 3fr);
  grid-template-rows: auto auto auto;
  column-gap: clamp(48px, 6vw, 112px);
  row-gap: 32px;
  padding-block: clamp(64px, 7vw, 112px);
}
.hero__brand { grid-column: 1; grid-row: 1; margin: 0; }
.hero__logo { width: 100%; max-width: 290px; height: auto; object-fit: contain; }
.hero__headline { grid-column: 2; grid-row: 1; padding-top: 0; }
.hero h1 { max-width: none; font-size: clamp(3rem, 5.8vw, 6.7rem); line-height: 1.02; }
.hero__mission {
  grid-column: 2; grid-row: 2; max-width: 64ch; margin: 0;
  font-size: clamp(1.05rem, 1.4vw, 1.4rem); line-height: 1.6;
  letter-spacing: 0; text-transform: none; font-weight: 400;
}
.hero__actions { grid-column: 2; grid-row: 3; justify-content: flex-start; flex-wrap: wrap; margin: 8px 0 0; }
.principles > button { transition: background-color 300ms ease, color 300ms ease, box-shadow 300ms ease; }
.mission__text { display: grid; }
.mission__text > span { grid-area: 1 / 1; opacity: 0; visibility: hidden; transition: opacity 300ms ease, visibility 300ms; }
.mission__text > .is-active { opacity: 1; visibility: visible; }
.impact__number { font-variant-numeric: tabular-nums; }
.partners .section-heading { margin-inline: auto; text-align: center; }
.partners .section-heading p { margin-inline: auto; }
.social { min-height: auto; padding-block: clamp(48px, 6vw, 80px); }
.social__inner { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(240px, 1fr); gap: clamp(32px, 6vw, 90px); align-items: center; }
.social h2 { max-width: 20ch; font-size: clamp(1.8rem, 3vw, 3rem); line-height: 1.1; }
.social__intro p { max-width: 58ch; text-transform: none; font-weight: 400; line-height: 1.6; }
.social__links { display: flex; flex-direction: column; gap: 0; margin: 0; }
.social__links a { flex-direction: row; align-items: center; justify-content: space-between; min-height: 64px; gap: 20px; border-bottom: 1px solid rgba(23, 63, 77, 0.35); }
.social__links a:hover { text-decoration: underline; }
.social__links span { font-size: 0.9rem; letter-spacing: 0.03em; }
.social__links .social__arrow { font-size: 1.5rem; }
.contact { min-height: auto; padding-block: clamp(32px, 4vw, 56px); }
.contact__grid { display: block; }
.contact h2 { max-width: 1000px; font-size: clamp(1.45rem, 2.7vw, 2.6rem); line-height: 1.25; letter-spacing: -0.025em; font-weight: 500; }
.contact h2 a { text-decoration: none; }
.contact h2 a:hover { text-decoration: underline; }
.site-footer { padding-block: 24px; }
.site-footer__grid { gap: 20px; }
.site-footer__email { color: rgba(255,255,255,0.76); font-size: 0.78rem; }
@media (max-width: 899px) {
  .hero__grid { width: min(calc(100% - 40px), var(--container)); grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto auto auto; gap: 28px; padding-block: 40px 56px; }
  .hero__brand { grid-column: 1; grid-row: 1; margin: 0 0 32px; }
  .hero__logo { width: 200px; }
  .hero__headline { grid-column: 1; grid-row: 2; }
  .hero h1 { font-size: clamp(2rem, 7.7vw, 4.6rem); }
  .hero__mission { grid-column: 1; grid-row: 3; }
  .hero__actions { grid-column: 1; grid-row: 4; }
  .social__inner { grid-template-columns: 1fr; gap: 28px; }
  .social__links { max-width: none; }
}
/* Keep the decorative shape clear of the headline at every breakpoint. */
.hero__shape {
  top: -130px;
  left: -130px;
  width: clamp(450px, 38vw, 700px);
}

.principles > button { width: 100%; border: 0; cursor: pointer; font-family: inherit; line-height: inherit; }

/* Hero éditorial — composition modifiable en HTML, CSS et SVG. */
.site-header { background: #f4f3ec; backdrop-filter: none; }
.site-header__inner { width: 91%; max-width: 1600px; min-height: 108px; gap: 24px; }
.brand { flex-direction: row; align-items: center; gap: 30px; max-width: 570px; }
.brand__logo { width: clamp(140px, 11.5vw, 195px); flex-shrink: 0; }
.brand .brand__small { border-left: 1px solid #c8ceca; padding-left: 30px; margin: 0; max-width: 300px; font-size: 14px; line-height: 1.45; letter-spacing: 0; }
.main-nav > a:not(.button) { font-size: 14px; white-space: nowrap; }
.main-nav__cta { background: #f4bb1f; color: #123b48; border-color: #f4bb1f; gap: 22px; white-space: nowrap; }
.main-nav__cta:hover { background: #ffcf42; color: #123b48; }
.editorial-hero { --paper: #f4f3ec; --gold: #f4bb1f; background: #154553; color: var(--paper); display: block; min-height: 0; }
.editorial-copy { width: 55.7%; padding: clamp(64px, 5.6vw, 104px) 0 58px 6.3vw; z-index: 1; }
.editorial-hero h1 { font-size: clamp(40px, 4.95vw, 92px); font-weight: 500; letter-spacing: -.045em; line-height: .99; margin: 0; max-width: none; }
.editorial-hero h1 span { display: block; }
.editorial-hero h1 span:first-child { color: #b9cec5; }
.editorial-rule { width: 110px; height: 7px; background: var(--gold); margin: 28px 0; }
.editorial-description { font-size: clamp(18px, 1.48vw, 28px); line-height: 1.45; max-width: 580px; width: 88%; margin: 0 0 32px; }
.editorial-actions { display: flex; gap: 22px; flex-wrap: wrap; }
.editorial-actions .button { min-height: 64px; padding: 17px 30px; font-size: clamp(12px, 1vw, 17px); gap: 22px; border-radius: 5px; letter-spacing: .065em; }
.editorial-actions .button span, .main-nav__cta span { font-size: 25px; line-height: 1; font-weight: 400; }
.editorial-primary { background: var(--gold); color: #123b48; border-color: var(--gold); }
.editorial-primary:hover { background: #ffcf42; border-color: #ffcf42; }
.editorial-secondary { color: var(--paper); border: 1px solid var(--paper); background: transparent; }
.editorial-secondary:hover { background: var(--paper); color: #154553; }
.editorial-signature { display: flex; align-items: center; gap: 22px; margin: 68px 0 0; width: 88%; color: #c1d3d7; font-size: 12px; text-transform: uppercase; letter-spacing: .25em; line-height: 1.6; }
.editorial-signature span { height: 1px; flex: 1; min-width: 35px; background: #8eacb5; }
.network-art { position: absolute; top: 0; right: 0; bottom: 0; width: 44.3%; overflow: hidden; container-type: inline-size; }
.network-art > div, .network-lines, .network-stat, .network-motto { position: absolute; }
.network-sun { width: 64%; aspect-ratio: 1; left: 50%; top: -9%; background: var(--gold); border-radius: 50%; }
.network-sage { left: 6.6%; top: 29.2%; width: 42%; height: 37.5%; background: #95ada2; border-radius: 46% 0 0 0; }
.network-arch { left: 33.8%; top: 13.7%; width: 24.2%; height: 28%; border-radius: 110px 110px 0 0; background: var(--paper); }
.network-arch::after { content: ''; position: absolute; left: 0; bottom: 0; width: 60%; height: 45%; border-radius: 0 60px 0 0; background: #154553; }
.network-blue { left: 42.6%; top: 69.5%; width: 23%; height: 16.4%; border-radius: 0 72px 0 0; background: #829fa8; }
.network-lines { inset: 0; width: 100%; height: 100%; }
.network-pillar { left: 19.2%; top: 55.6%; width: 23.4%; bottom: 0; background: var(--paper); border-radius: 130px 0 0 0; }
.network-bottom-sun { left: 19.2%; bottom: -1px; width: 17%; aspect-ratio: 1; background: var(--gold); border-radius: 0 100% 0 0; }
.network-stat { margin: 0; color: var(--paper); line-height: 1.4; font-size: clamp(14px, 2.3cqw, 19px); }
.network-stat strong { display: block; font-size: clamp(25px, 4.5cqw, 36px); line-height: 1.1; font-weight: 700; margin-bottom: 6px; }
.network-stat--regions { left: 8.9%; top: 13.7%; }
.network-stat--members { left: 75.5%; top: 68.5%; }
.network-motto { left: 71%; top: 13.3%; padding: 4px 0 0 24px; margin: 0; border-left: 1px solid #154553; color: #154553; font-size: clamp(12px, 2cqw, 17px); line-height: 1.85; letter-spacing: .2em; font-weight: 600; text-transform: uppercase; }
.network-motto::after { content: ''; display: block; margin-top: 22px; width: 90px; height: 1px; background: #154553; }
@media (min-width: 1800px) {
  .editorial-copy { padding-bottom: 80px; }

}
@media (min-width: 900px) and (max-width: 1190px) {
  .brand .brand__small { display: none; }
  .editorial-actions { gap: 12px; }
  .editorial-actions .button { padding: 14px 17px; gap: 12px; }
  .editorial-copy { padding-left: 5vw; }

  .editorial-signature { letter-spacing: .15em; }
}
@media (max-width: 899px) {
  .site-header__inner { min-height: 84px; width: calc(100% - 40px); }
  .brand { gap: 18px; }
  .brand__logo { width: 140px; }
  .brand .brand__small { max-width: 250px; padding-left: 18px; font-size: 12px; }
  .main-nav { background: #f4f3ec; }
  .editorial-hero { grid-template-columns: 1fr; }
  .editorial-copy { width: 100%; padding: 36px 6vw; }
  .editorial-hero h1 { font-size: clamp(22px, 3.5vw, 32px); line-height: 1.2; letter-spacing: -.025em; }
  .editorial-hero h1 span { display: inline; }
  .editorial-rule { width: 72px; height: 4px; margin: 18px 0; }
  .editorial-description { width: 100%; max-width: 65ch; font-size: 16px; line-height: 1.5; margin-bottom: 0; }
  .editorial-actions .button { font-size: 13px; min-height: 58px; padding: 14px 20px; gap: 16px; }
  .editorial-signature { margin-top: 42px; width: 100%; letter-spacing: .17em; }
  .network-art { position: relative; inset: auto; width: calc(100% + 12vw); margin: 28px -6vw 32px; aspect-ratio: 740 / 830; min-height: 0; }
  .network-sun { top: -9%; }
}
@media (max-width: 520px) {
  .brand .brand__small { display: none; }
  .editorial-actions { flex-direction: column; align-items: stretch; gap: 12px; }
  .editorial-actions .button { justify-content: space-between; }
  .editorial-signature { font-size: 12px; letter-spacing: .12em; }
  .network-motto { padding-left: 12px; letter-spacing: .12em; font-size: 12px; }
  .network-motto::after { width: 55px; margin-top: 10px; }
  .network-stat { font-size: 12px; }
}