:root {
  --paper: #f7f6f1;
  --ink: #233b4c;
  --soft: #627079;
  --line: #d9dfdc;
  --panel: #eeede6;
  --white: #ffffff;
  --coral: #b94e43;
  --rose: #f3ddd5;
  --font-sans: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

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

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

.wrap {
  width: min(1120px, calc(100% - 12%));
  margin-inline: auto;
}

@media (max-width: 560px) {
  .wrap {
    width: calc(100% - 14%);
  }
}

/* Header */
.site-header {
  padding: 30px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line);
  gap: 20px;
}

.brand-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.brand {
  font-size: 18px;
  letter-spacing: 3px;
  font-weight: 600;
}

.brand-tag {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--soft);
  font-weight: 400;
  line-height: 1.2;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 14px;
}

.site-nav a:hover {
  color: var(--coral);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 4px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
  color: var(--soft);
  letter-spacing: 0.04em;
}

.lang-current {
  color: var(--ink);
  font-weight: 600;
}

/* Hero */
.hero {
  padding: 72px 0 60px;
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 26px;
  align-items: center;
}

.eyebrow {
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--soft);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(40px, 6.7vw, 68px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  font-weight: 500;
  margin: 0 0 28px;
}

.hero h1 em {
  font-family: var(--font-serif);
  font-weight: 400;
  font-style: italic;
  color: var(--coral);
}

.hero-lead,
.hero-sub {
  font-size: 16px;
  line-height: 1.75;
  margin: 0;
  color: var(--soft);
  max-width: 440px;
}

.hero-lead {
  margin-bottom: 14px;
}

.hero-lead strong {
  color: var(--ink);
  font-weight: 600;
}

.hero-sub {
  font-size: 15px;
  opacity: 0.95;
}

.action {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  padding: 14px 22px;
  border-radius: 30px;
  font-size: 14px;
  margin-top: 24px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.action:hover {
  background: color-mix(in srgb, var(--ink) 88%, white);
  transform: translateY(-1px);
}

.art {
  position: relative;
  isolation: isolate;
  min-height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.halo {
  position: absolute;
  inset: 8% 12%;
  border-radius: 50%;
  background: var(--rose);
  transform: rotate(-12deg);
  z-index: 0;
}

.phone-frame {
  position: relative;
  z-index: 1;
  margin: 0;
  width: min(240px, 64%);
  border-radius: 0;
  overflow: visible;
  background: transparent;
  box-shadow: none;
  transform: rotate(-4deg);
  animation: float-phone 7s ease-in-out infinite;
}

.phone-frame img {
  width: 100%;
  height: auto;
  display: block;
  background: transparent;
  /* suit le contour du téléphone (alpha), pas le rectangle du fichier */
  filter: drop-shadow(0 22px 28px rgb(35 59 76 / 22%));
}

@keyframes float-phone {
  0%,
  100% {
    transform: rotate(-4deg) translateY(0);
  }
  50% {
    transform: rotate(-4deg) translateY(-8px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .phone-frame {
    animation: none;
  }
}

/* Principles */
.principles {
  padding: 36px 0 42px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  border-top: 1px solid var(--line);
}

.pillar-num {
  display: block;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--coral);
  margin-bottom: 10px;
}

.principles h3 {
  font-size: 16px;
  font-weight: 500;
  margin: 0 0 10px;
}

.principles p {
  font-size: 15px;
  margin: 0;
  color: var(--soft);
  line-height: 1.65;
}

/* Manifesto */
.manifesto {
  padding: 48px 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}

.manifesto h2 {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 12px 0 0;
}

.manifesto-body p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--soft);
  margin: 0 0 18px;
}

.manifesto-body p:last-child {
  margin-bottom: 0;
}

.manifesto-body strong {
  color: var(--ink);
  font-weight: 600;
}

.manifesto-body em {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--ink);
}

.manifesto-pull {
  margin-top: 28px !important;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-family: var(--font-serif);
  font-size: 22px !important;
  font-style: italic;
  line-height: 1.35 !important;
  color: var(--ink) !important;
}

/* Why */
.why {
  padding: 42px 0 50px;
  border-top: 1px solid var(--line);
}

.why > div:first-child {
  margin-bottom: 28px;
  max-width: 640px;
}

.why h2 {
  font-size: clamp(26px, 3.5vw, 32px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 12px 0 0;
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px 36px;
}

.why-grid h3 {
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 8px;
}

.why-grid p {
  font-size: 15px;
  margin: 0;
  color: var(--soft);
  line-height: 1.7;
}

/* Project */
.project {
  background: var(--panel);
  border-radius: 18px;
  padding: 40px 40px 36px;
  margin: 18px 0 54px;
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.project-top {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 36px;
  align-items: start;
}

.project .eyebrow {
  margin-bottom: 15px;
}

.pc {
  font-family: var(--font-serif);
  color: var(--coral);
  font-size: 23px;
  font-style: italic;
}

.project h2,
.about h2,
.contact h2,
.legal-page h1 {
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.project h2 {
  font-size: 32px;
  margin: 12px 0 20px;
}

.project p {
  font-size: 15px;
  margin: 0;
  color: var(--soft);
  line-height: 1.7;
}

.project-extra {
  margin-top: 14px !important;
}

.project-link {
  display: inline-block;
  margin-top: 24px;
  font-size: 14px;
  color: var(--coral);
  border-bottom: 1px solid var(--coral);
  padding-bottom: 6px;
}

.project-note {
  font-size: 13px;
  margin-top: 14px;
  color: var(--soft);
}

.app-phone {
  margin: 0;
  width: min(240px, 100%);
  justify-self: end;
  background: transparent;
}

.app-phone img {
  width: 100%;
  height: auto;
  display: block;
  filter: drop-shadow(0 20px 32px rgb(35 59 76 / 20%));
}

/* Livre + mobile côte à côte, page QR bien visible */
.project-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
}

.project-bottom .book-photo,
.project-bottom .video-phone {
  margin: 0;
  background: transparent;
}

.project-bottom .book-photo {
  flex: 1 1 auto;
  width: min(520px, 72%);
  transform: rotate(-1deg);
  position: relative;
  z-index: 1;
}

.project-bottom .book-photo img,
.project-bottom .video-phone img {
  width: 100%;
  height: auto;
  display: block;
  filter: drop-shadow(0 18px 28px rgb(35 59 76 / 16%));
}

.project-bottom .video-phone {
  flex: 0 0 auto;
  width: min(175px, 26%);
  margin-left: -36px;
  transform: rotate(11deg);
  position: relative;
  z-index: 2;
}

.project-bottom .video-phone img {
  filter: drop-shadow(0 22px 30px rgb(35 59 76 / 24%));
}

.visual-caption {
  margin: -12px auto 0 !important;
  font-size: 13px !important;
  text-align: center;
  color: var(--soft);
  max-width: 400px;
}

/* About */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  margin: 0 0 50px;
  padding-top: 10px;
}

.about h2 {
  font-size: 26px;
  margin: 12px 0 0;
}

.about-copy p {
  font-size: 16px;
  margin: 0 0 16px;
  color: var(--soft);
  line-height: 1.75;
}

.about-copy strong {
  color: var(--ink);
  font-weight: 600;
}

.about-copy .signature {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--font-serif);
  font-size: 18px;
  font-style: italic;
  color: var(--ink);
  line-height: 1.4;
}

/* Contact */
.contact {
  padding: 32px 0;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.contact h2 {
  margin: 0;
  font-size: 25px;
}

.contact a.mail {
  font-size: 16px;
  color: var(--coral);
  border-bottom: 1px solid transparent;
}

.contact a.mail:hover {
  border-bottom-color: var(--coral);
}

.contact .meta {
  font-size: 14px;
  color: var(--soft);
  margin-top: 8px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 26px 0;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 13px;
  color: var(--soft);
  letter-spacing: 0.2px;
  flex-wrap: wrap;
  line-height: 1.5;
}

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

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

/* Legal pages */
.legal-page {
  padding: 48px 0 72px;
  max-width: 720px;
}

.legal-page h1 {
  font-size: 32px;
  margin: 0 0 28px;
}

.legal-page h2 {
  font-size: 17px;
  font-weight: 600;
  margin: 28px 0 10px;
}

.legal-page p,
.legal-page li {
  font-size: 16px;
  color: var(--soft);
  line-height: 1.7;
}

.legal-page ul {
  padding-left: 1.2em;
}

.back-link {
  display: inline-block;
  font-size: 14px;
  color: var(--coral);
  margin-bottom: 28px;
}

/* Mobile */
@media (max-width: 560px) {
  .site-header {
    padding-right: 0;
  }

  .brand {
    font-size: 15px;
  }

  .brand-tag {
    font-size: 11px;
    max-width: 160px;
  }

  .site-nav {
    gap: 12px;
    font-size: 12px;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 45px;
    gap: 15px;
  }

  .hero h1 {
    letter-spacing: -0.03em;
    font-size: 48px;
  }

  .art {
    max-width: 280px;
    width: 100%;
    margin: auto;
    min-height: 300px;
  }

  .phone-frame {
    width: min(200px, 62%);
  }

  .site-nav > a:nth-child(3) {
    display: none;
  }

  .lang-switch {
    margin-left: 0;
    padding-left: 10px;
  }

  .principles {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .manifesto {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 36px 0;
  }

  .manifesto-pull {
    font-size: 19px !important;
  }

  .why-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .project {
    padding: 26px;
    gap: 28px;
  }

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

  .app-phone {
    width: min(200px, 55%);
    justify-self: center;
  }

  .project-bottom {
    flex-direction: row;
    gap: 0;
    max-width: 100%;
  }

  .project-bottom .book-photo {
    width: 70%;
    transform: none;
  }

  .project-bottom .video-phone {
    width: 30%;
    margin-left: -28px;
    transform: rotate(10deg);
  }

  .about {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .contact {
    display: block;
  }

  .contact .meta {
    margin-top: 14px;
  }
}