@font-face {
  font-family: 'Clash Display';
  src: url('../fonts/ClashDisplay-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Satoshi';
  src: url('../fonts/Satoshi-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Satoshi';
  src: url('../fonts/Satoshi-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --color-bg: #FAF8F3;
  --color-text: #1A1A1A;
  --color-accent: #3A5A40;
  --color-accent-light: rgba(58, 90, 64, 0.1);
  --font-family: 'Satoshi', -apple-system, BlinkMacSystemFont, sans-serif;
  --section-padding: 6rem 4rem;
}

body {
  font-family: var(--font-family);
  font-weight: 400;
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.5;
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* Dark mode */
body.dark {
  --color-bg: #141414;
  --color-text: #F0EDE6;
  --color-accent: #6B9E74;
  --color-accent-light: rgba(107, 158, 116, 0.1);
}

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

section {
  min-height: 85vh;
  scroll-snap-align: start;
  display: flex;
  align-items: center;
}

/* Gradient stripe */
.gradient-stripe {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 200;
  background: linear-gradient(90deg, #2D4A34, #3A5A40, #5A8A62, #8BB896, #3A5A40);
  background-size: 300% 100%;
  animation: gradient-slide 8s linear infinite;
}

@keyframes gradient-slide {
  0% { background-position: 0% 50%; }
  100% { background-position: 300% 50%; }
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 4rem;
}

.nav__logo {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  transition: color 0.3s ease;
}

.nav--light .nav__logo,
.nav--light .nav__link {
  color: var(--color-bg);
}

.nav__link {
  font-weight: 400;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  color: var(--color-text);
  opacity: 0.6;
  transition: opacity 0.3s ease;
}

.nav__right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav__link:hover {
  opacity: 1;
}

.nav__toggle {
  background: none;
  border: 1.5px solid var(--color-text);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  position: relative;
  opacity: 0.4;
  transition: opacity 0.3s ease, border-color 0.3s ease;
}

.nav__toggle:hover {
  opacity: 0.8;
}

.nav__toggle-icon {
  display: block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--color-text);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: background-color 0.3s ease, transform 0.3s ease;
}

body.dark .nav__toggle-icon {
  background-color: transparent;
  box-shadow: inset -4px -2px 0 0 var(--color-text);
  border-radius: 50%;
}

.nav--light .nav__toggle {
  border-color: var(--color-bg);
}

.nav--light .nav__toggle-icon {
  background-color: var(--color-bg);
}

body.dark .nav--light .nav__toggle-icon {
  background-color: transparent;
  box-shadow: inset -4px -2px 0 0 var(--color-bg);
}

/* Geometric background */
.geometric-bg {
  position: fixed;
  top: 0;
  right: 0;
  width: 50vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

/* Hero */
.hero {
  padding: var(--section-padding);
  padding-top: 8rem;
  position: relative;
  z-index: 1;
}

.hero__content {
  max-width: 550px;
}

.hero__title {
  font-family: 'Clash Display', var(--font-family);
  font-weight: 700;
  font-size: clamp(5rem, 12vw, 10rem);
  letter-spacing: 0.08em;
  line-height: 0.9;
  color: var(--color-text);
  margin-bottom: 2rem;
}

.hero__tagline {
  font-weight: 700;
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  color: var(--color-accent);
  margin-bottom: 1.25rem;
  line-height: 1.3;
}

.hero__baseline {
  font-weight: 400;
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--color-text);
  opacity: 0.55;
  line-height: 1.7;
  max-width: 500px;
}

/* Missions intro */
.missions-intro {
  padding: var(--section-padding);
  position: relative;
  z-index: 1;
}

.missions-intro__content {
  max-width: 550px;
}

.missions-intro__accroche {
  font-weight: 400;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  line-height: 1.4;
  color: var(--color-text);
}

.missions-intro__accroche strong {
  font-weight: 700;
  color: var(--color-accent);
}

/* Piliers */
.pilier {
  padding: var(--section-padding);
  position: relative;
  z-index: 1;
  min-height: 85vh;
}

.pilier__content {
  max-width: 450px;
}

.pilier__number {
  display: block;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  opacity: 0.5;
  margin-bottom: 1rem;
}

.pilier__title {
  font-family: 'Clash Display', var(--font-family);
  font-weight: 700;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  color: var(--color-text);
  margin-bottom: 1rem;
  line-height: 1.1;
}

.pilier__desc {
  font-weight: 400;
  font-size: clamp(1.1rem, 1.8vw, 1.3rem);
  color: var(--color-text);
  opacity: 0.6;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.pilier__detail {
  font-weight: 400;
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  color: var(--color-accent);
  opacity: 0.7;
  line-height: 1.7;
  padding-left: 1rem;
  border-left: 2px solid var(--color-accent);
}

/* Contact */
.contact {
  padding: var(--section-padding);
  background-color: var(--color-accent);
  justify-content: center;
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

.contact__inner {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.contact__accroche {
  font-family: 'Clash Display', var(--font-family);
  font-weight: 700;
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--color-bg);
  margin-bottom: 3rem;
  line-height: 1.1;
  letter-spacing: 0.02em;
}

.contact__cta {
  display: inline-block;
  padding: 1rem 2.5rem;
  border: 1.5px solid var(--color-bg);
  color: var(--color-bg);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.05em;
  transition: background-color 0.3s ease, color 0.3s ease;
  margin-bottom: 3rem;
}

.contact__cta:hover {
  background-color: var(--color-bg);
  color: var(--color-accent);
}

.contact__details {
  display: flex;
  justify-content: center;
  gap: 4rem;
  margin-bottom: 4rem;
}

.contact__item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: opacity 0.3s ease;
}

.contact__item:hover {
  opacity: 0.8;
}

.contact__label {
  font-weight: 400;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-bg);
  opacity: 0.6;
}

.contact__value {
  font-weight: 700;
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-bg);
}

.contact__brand {
  display: block;
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.15em;
  color: var(--color-bg);
  opacity: 0.4;
  margin-top: 2rem;
}

/* Legal toggle in contact */
.contact__legal-toggle {
  display: inline-block;
  background: none;
  border: none;
  font-family: var(--font-family);
  font-weight: 400;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-bg);
  opacity: 0.4;
  cursor: pointer;
  transition: opacity 0.3s ease;
  margin-top: 1.5rem;
  padding: 0;
}

.contact__legal-toggle:hover {
  opacity: 0.7;
}

.contact__legal {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.6s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.4s ease;
  opacity: 0;
}

.contact__legal.open {
  max-height: 2000px;
  opacity: 1;
}

.contact__legal-inner {
  max-width: 600px;
  margin: 2rem auto 0;
  text-align: left;
  color: var(--color-bg);
  line-height: 1.7;
}

.contact__legal-inner h3 {
  font-family: 'Clash Display', var(--font-family);
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--color-bg);
  text-align: center;
}

.contact__legal-inner h4 {
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--color-bg);
  opacity: 0.8;
}

.contact__legal-inner p {
  font-size: 0.85rem;
  opacity: 0.6;
  margin-bottom: 0.75rem;
}

.contact__legal-inner em {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 1px 4px;
  border-radius: 2px;
  font-style: italic;
  opacity: 0.8;
}

/* Dark mode adjustments */
body.dark .contact {
  background-color: #1E3A24;
}

body.dark .pilier__detail {
  border-left-color: var(--color-accent);
  color: var(--color-accent);
}

/* Scroll animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s cubic-bezier(0.22, 1, 0.36, 1), transform 1s cubic-bezier(0.22, 1, 0.36, 1);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in:nth-child(2) { transition-delay: 0.1s; }
.fade-in:nth-child(3) { transition-delay: 0.2s; }
.fade-in:nth-child(4) { transition-delay: 0.3s; }


/* Responsive */
@media (max-width: 768px) {
  :root {
    --section-padding: 4rem 2rem;
  }

  .nav {
    padding: 1rem 2rem;
  }

  .geometric-bg {
    width: 100vw;
    opacity: 0.3;
  }

  .hero {
    padding-top: 6rem;
  }

  .hero__content {
    text-align: center;
    max-width: 100%;
  }

  .hero__baseline {
    max-width: 100%;
  }

  .pilier {
    min-height: 85vh;
  }

  .missions-intro__accroche br {
    display: none;
  }

  .contact__details {
    flex-direction: column;
    gap: 2rem;
  }
}

@media (max-width: 480px) {
  :root {
    --section-padding: 3rem 1.5rem;
  }

  .missions-intro__accroche br {
    display: none;
  }
}