/* ==========================================================================
   Nexolut — feuille de style unique (aucun framework, aucune ressource externe)
   ========================================================================== */

/* ---------- Fontes auto-hébergées ---------- */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/inter-latin-400-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/inter-latin-500-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/inter-latin-600-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/inter-latin-700-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---------- Variables ---------- */

:root {
  color-scheme: light dark;
  --bg: #FFFFFF;
  --bg-soft: #F6F8FA;
  --ink: #101828;
  --body: #404B5A;
  --muted: #5A6472;
  --navy: #0B1220;
  --navy-2: #101A2E;
  --accent: #22D3EE;
  --accent-deep: #0E7490;
  --line: #E5E9F0;
  --line-dark: #25314B;
  --ink-inverse: #EDF1F7;
  --muted-inverse: #A9B4C6;
  --card-bg: #FFFFFF;
  --header-bg: rgba(255, 255, 255, 0.86);
  --menu-bg: #FFFFFF;
  --btn-outline-border: #C9D2DD;
  --photo-ring: #FFFFFF;
  --shadow-card: 0 10px 30px rgba(16, 24, 40, 0.06);
  --shadow-menu: 0 16px 32px rgba(16, 24, 40, 0.08);
  --edge: transparent;
  --icon-sun: none;
  --icon-moon: block;
  --focus: var(--accent-deep);
  --font-sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --header-h: 64px;
  --radius: 12px;
  --gutter: clamp(20px, 5vw, 32px);
}

/* ---------- Thème sombre ----------
   Deux déclencheurs volontairement dupliqués :
   1. choix explicite (html[data-theme=dark], posé par theme.js/main.js) ;
   2. préférence système, tant que le clair n'est pas forcé. */

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0B1220;
  --bg-soft: #0F172A;
  --ink: #E2E8F0;
  --body: #B8C2D2;
  --muted: #94A3B8;
  --line: #1E293B;
  --accent-deep: #67E8F9;
  --card-bg: #0F172A;
  --header-bg: rgba(11, 18, 32, 0.85);
  --menu-bg: #0B1220;
  --btn-outline-border: #334155;
  --photo-ring: #0B1220;
  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.5);
  --shadow-menu: 0 16px 32px rgba(0, 0, 0, 0.6);
  --edge: var(--line-dark);
  --icon-sun: block;
  --icon-moon: none;
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0B1220;
    --bg-soft: #0F172A;
    --ink: #E2E8F0;
    --body: #B8C2D2;
    --muted: #94A3B8;
    --line: #1E293B;
    --accent-deep: #67E8F9;
    --card-bg: #0F172A;
    --header-bg: rgba(11, 18, 32, 0.85);
    --menu-bg: #0B1220;
    --btn-outline-border: #334155;
    --photo-ring: #0B1220;
    --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.5);
    --shadow-menu: 0 16px 32px rgba(0, 0, 0, 0.6);
    --edge: var(--line-dark);
    --icon-sun: block;
    --icon-moon: none;
  }
}

html[data-theme="light"] {
  color-scheme: light;
}

/* ---------- Base ---------- */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3 {
  margin: 0 0 0.6em;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.015em;
}

p {
  margin: 0 0 1em;
}

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

a {
  color: var(--accent-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection {
  background: rgba(34, 211, 238, 0.35);
}

.container {
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container-narrow {
  max-width: 800px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- Lien d'évitement ---------- */

.skip-link {
  position: absolute;
  top: -80px;
  left: 16px;
  z-index: 200;
  background: var(--navy);
  color: #FFFFFF;
  padding: 0.65em 1.1em;
  border-radius: 0 0 8px 8px;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 0;
  color: #FFFFFF;
}

/* ---------- En-tête ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  color: var(--ink);
  text-decoration: none;
}

.brand:hover {
  color: var(--accent-deep);
}

.brand svg {
  display: block;
  height: 24px;
  width: auto;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
}

.nav-toggle .bar {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 1px;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.7rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
}

.nav-menu a:hover {
  color: var(--accent-deep);
}

.nav-menu .nav-contact {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.45em 1.05em;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.nav-menu .nav-contact:hover {
  border-color: var(--accent-deep);
  color: var(--accent-deep);
}

/* Bouton de bascule clair / sombre (après le menu, aligné sur la nav) */

.nav-inner .site-nav {
  margin-left: auto;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 40px;
  height: 40px;
  margin-left: 1.4rem;
  padding: 0;
  background: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.theme-toggle:hover {
  border-color: var(--accent-deep);
  color: var(--accent-deep);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.theme-toggle .icon-sun {
  display: var(--icon-sun);
}

.theme-toggle .icon-moon {
  display: var(--icon-moon);
}

/* Sélecteur de langue (liens texte sobres FR | EN) */

.lang-switcher {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  flex: none;
  margin-left: 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
}

.lang-switcher .lang-sep {
  color: var(--line);
}

.lang-switcher a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.25em 0.2em;
  transition: color 0.15s ease;
}

.lang-switcher a:hover {
  color: var(--accent-deep);
}

.lang-switcher a[aria-current] {
  color: var(--ink);
}

/* Sans JavaScript, la bascule est inopérante : on la masque */
html:not(.js) .theme-toggle {
  display: none;
}

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
  }

  /* Sans JavaScript, le burger est inopérant : on le masque et le menu
     s'affiche en colonne statique sous la marque. */
  html:not(.js) .nav-toggle {
    display: none;
  }

  html:not(.js) .nav-inner {
    height: auto;
    min-height: var(--header-h);
    flex-wrap: wrap;
  }

  html:not(.js) .site-nav {
    flex-basis: 100%;
    /* Le menu passe sous la première ligne : marque + sélecteur de langue */
    order: 5;
  }

  .nav-open .nav-toggle .bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

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

  .nav-open .nav-toggle .bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .nav-menu {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--menu-bg);
    border-bottom: 1px solid var(--line);
    padding: 0.4rem 0 1.1rem;
  }

  /* Avec JavaScript uniquement : menu déroulant piloté par le burger */
  .js .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    box-shadow: var(--shadow-menu);
  }

  .nav-open .nav-menu {
    display: flex;
  }

  .nav-menu a {
    display: block;
    padding: 0.85em var(--gutter);
    font-size: 1rem;
  }

  .nav-menu .nav-contact {
    margin: 0.6rem var(--gutter) 0;
    text-align: center;
    border-color: var(--accent-deep);
    color: var(--accent-deep);
  }

  .theme-toggle {
    margin-left: 0.6rem;
    width: 44px;
    height: 44px;
  }

  .lang-switcher {
    margin-left: 0.8rem;
  }
}

/* ---------- Boutons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55em;
  padding: 0.78em 1.35em;
  border: 1px solid transparent;
  border-radius: 8px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn svg {
  flex: none;
}

.btn-primary {
  background: var(--accent);
  color: var(--navy);
}

.btn-primary:hover {
  background: #4CE0F6;
  color: var(--navy);
  transform: translateY(-1px);
}

.btn-ghost {
  border-color: rgba(148, 163, 184, 0.4);
  color: var(--ink-inverse);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-outline {
  border-color: var(--btn-outline-border);
  color: var(--ink);
  background: var(--bg);
}

.btn-outline:hover {
  border-color: var(--accent-deep);
  color: var(--accent-deep);
}

.btn[disabled] {
  opacity: 0.55;
  cursor: progress;
  transform: none;
}

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

.section {
  padding: clamp(4rem, 9vw, 6.5rem) 0;
}

.section--soft {
  background: var(--bg-soft);
}

.section--dark {
  background-color: var(--navy);
  color: var(--ink-inverse);
  --focus: var(--accent);
  /* Frontière perceptible en mode sombre (transparent en clair) */
  border-top: 1px solid var(--edge);
  border-bottom: 1px solid var(--edge);
}

.section--dark.section--dots {
  background-image: radial-gradient(rgba(148, 163, 184, 0.08) 1px, transparent 1.5px);
  background-size: 22px 22px;
}

.kicker {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin: 0 0 1.1rem;
}

.section--dark .kicker {
  color: var(--accent);
}

.section h2 {
  font-size: clamp(1.55rem, 3vw, 2.05rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 1.1rem;
}

.section--dark h2 {
  color: #FFFFFF;
}

.section-head {
  max-width: 680px;
  margin-bottom: 2.75rem;
}

.section-head .intro {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0;
}

.section--dark .section-head .intro {
  color: var(--muted-inverse);
}

.prose p {
  color: var(--body);
  font-size: 1.02rem;
}

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

/* ---------- Héros ---------- */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100svh - var(--header-h));
  padding: clamp(4.5rem, 10vh, 7rem) 0;
  background-color: var(--navy);
  background-image:
    radial-gradient(560px 400px at 85% -8%, rgba(34, 211, 238, 0.16), transparent 65%),
    radial-gradient(rgba(148, 163, 184, 0.14) 1px, transparent 1.5px);
  background-size: auto, 22px 22px;
  color: var(--ink-inverse);
  --focus: var(--accent);
  /* Frontière perceptible en mode sombre (transparent en clair) */
  border-bottom: 1px solid var(--edge);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin: 0 0 1.3rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.12;
  color: #FFFFFF;
  max-width: 15em;
  margin: 0 0 0.55em;
}

.hero .lead {
  font-size: clamp(1.02rem, 1.4vw, 1.15rem);
  color: var(--muted-inverse);
  max-width: 38em;
  margin: 0 0 2.1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 0 0 2.8rem;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
}

.chips li {
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: #B8C2D2;
  border: 1px solid rgba(148, 163, 184, 0.35);
  border-radius: 6px;
  padding: 0.4em 0.85em;
  background: rgba(16, 26, 46, 0.5);
}

/* Curseur clignotant (signature du logotype) */
.type-cursor {
  display: inline-block;
  width: 0.48em;
  height: 0.1em;
  margin-left: 0.14em;
  background: var(--accent);
  animation: nx-blink 1.1s step-end infinite;
}

@keyframes nx-blink {
  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

/* Entrée du héros au chargement */
@keyframes nx-rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

.hero .fx {
  animation: nx-rise 0.6s cubic-bezier(0.2, 0.7, 0.3, 1) both;
}

.hero .fx-2 { animation-delay: 0.08s; }
.hero .fx-3 { animation-delay: 0.16s; }
.hero .fx-4 { animation-delay: 0.24s; }
.hero .fx-5 { animation-delay: 0.32s; }

/* ---------- Société ---------- */

.split {
  display: grid;
  gap: 2rem;
}

@media (min-width: 900px) {
  .split {
    grid-template-columns: 5fr 7fr;
    gap: 4.5rem;
  }
}

.split-head h2 {
  margin-bottom: 0;
}

/* ---------- Expertises ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.2rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.7rem 1.6rem;
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.card h3 {
  font-size: 1.08rem;
  margin-bottom: 0.7em;
}

.card > p {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 0;
}

.card ul {
  list-style: none;
  margin: 1.15rem 0 0;
  padding: 1.15rem 0 0;
  border-top: 1px solid var(--line);
}

.card li {
  position: relative;
  padding-left: 1.35rem;
  font-size: 0.9rem;
  color: var(--body);
  margin-bottom: 0.5em;
}

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

.card li::before {
  content: "—";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 0.8em;
  line-height: 2;
  color: var(--accent-deep);
}

/* ---------- Approche (frise en quatre temps) ---------- */

.steps {
  list-style: none;
  display: grid;
  gap: 2.2rem;
  margin: 0;
  padding: 0;
}

.step {
  position: relative;
  padding-left: 1.9rem;
}

.step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 2px solid var(--accent-deep);
  background: var(--bg);
}

.step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 1.6rem;
  bottom: -1.75rem;
  width: 1px;
  background: var(--line);
}

.step-no {
  display: block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--accent-deep);
  margin-bottom: 0.4rem;
}

.step h3 {
  font-size: 1.05rem;
  margin-bottom: 0.4em;
}

.step p {
  color: var(--muted);
  font-size: 0.93rem;
  margin: 0;
}

@media (min-width: 900px) {
  .steps {
    grid-template-columns: repeat(4, 1fr);
    gap: 2.4rem;
  }

  .step {
    padding-left: 0;
    padding-top: 2rem;
  }

  .step::before {
    left: 2px;
    top: 0;
  }

  .step:not(:last-child)::after {
    left: 26px;
    top: 6px;
    right: calc(-2.4rem + 10px);
    bottom: auto;
    width: auto;
    height: 1px;
  }
}

/* ---------- Dirigeant ---------- */

.bio {
  display: grid;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 760px) {
  .bio {
    grid-template-columns: auto 1fr;
    gap: 3rem;
  }
}

.bio-photo img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  box-shadow: 0 0 0 4px var(--photo-ring), 0 0 0 5px var(--line);
}

.bio h3 {
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  margin-bottom: 0.15em;
}

.bio .role {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--accent-deep);
  margin: 0 0 1.5em;
}

.bio .btn {
  margin-top: 0.6rem;
}

.btn-linkedin svg {
  width: 17px;
  height: 17px;
}

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

.contact-grid {
  display: grid;
  gap: 2.6rem;
  margin-top: 0.5rem;
}

@media (min-width: 920px) {
  .contact-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 4rem;
  }
}

.field {
  margin-bottom: 1.15rem;
}

.field label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  color: #C6CFDD;
  margin-bottom: 0.4rem;
}

.field input,
.field textarea {
  width: 100%;
  background: var(--navy-2);
  border: 1px solid var(--line-dark);
  border-radius: 8px;
  color: var(--ink-inverse);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  line-height: 1.5;
  padding: 0.72em 0.9em;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #8A93A5;
  opacity: 1;
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.18);
}

.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: #F87171;
}

.field textarea {
  min-height: 150px;
  resize: vertical;
}

.form-row {
  display: grid;
  gap: 0 1.1rem;
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

.captcha-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
}

.captcha-row img {
  display: block;
  border-radius: 8px;
  border: 1px solid var(--line-dark);
}

.captcha-row input {
  width: 9ch;
  font-family: var(--font-mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line-dark);
  border-radius: 8px;
  color: #C6CFDD;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.btn-icon:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-icon svg {
  width: 18px;
  height: 18px;
}

.hint {
  font-size: 0.8rem;
  color: #8A93A5;
  margin: 0.45rem 0 0;
}

.form-status {
  min-height: 1.5em;
  margin: 0 0 1rem;
  font-size: 0.93rem;
}

.form-status.is-ok,
.form-status.is-err {
  padding: 0.75em 1em;
  border-radius: 8px;
  border: 1px solid;
}

.form-status.is-ok {
  color: #86EFAC;
  background: rgba(52, 211, 153, 0.1);
  border-color: rgba(52, 211, 153, 0.35);
}

.form-status.is-err {
  color: #FECACA;
  background: rgba(248, 113, 113, 0.1);
  border-color: rgba(248, 113, 113, 0.35);
}

/* Retour du formulaire sans JavaScript : blocs révélés via :target
   (cibles #contact-ok / #contact-err des redirections 303 de contact.php) */
.form-fallback {
  display: none;
  margin: 0 0 1rem;
  font-size: 0.93rem;
  padding: 0.75em 1em;
  border-radius: 8px;
  border: 1px solid;
}

.form-fallback:target {
  display: block;
}

/* Avec JavaScript, la zone role=status prend le relais */
.js .form-fallback {
  display: none !important;
}

.form-fallback.is-ok {
  color: #86EFAC;
  background: rgba(52, 211, 153, 0.1);
  border-color: rgba(52, 211, 153, 0.35);
}

.form-fallback.is-err {
  color: #FECACA;
  background: rgba(248, 113, 113, 0.1);
  border-color: rgba(248, 113, 113, 0.35);
}

.form-note {
  font-size: 0.8rem;
  color: #8A93A5;
  margin: 1rem 0 0;
}

.form-note a {
  color: var(--muted-inverse);
}

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

/* Pot de miel : champ invisible pour les humains */
.hp-field {
  position: absolute !important;
  left: -9999px !important;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.contact-aside {
  align-self: start;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  background: rgba(16, 26, 46, 0.65);
  padding: 1.8rem;
}

.contact-aside h3 {
  color: #FFFFFF;
  font-size: 1.02rem;
  margin-bottom: 0.8em;
}

.contact-aside p {
  color: var(--muted-inverse);
  font-size: 0.95rem;
  margin: 0;
}

.contact-aside a {
  color: var(--accent);
}

.contact-aside a:hover {
  color: #7EE7F7;
}

/* ---------- Pied de page ---------- */

.site-footer {
  background: var(--navy-2);
  color: #94A3B8;
  font-size: 0.88rem;
  padding: 2.6rem 0 2.2rem;
  --focus: var(--accent);
}

.footer-brand {
  color: var(--ink-inverse);
}

.footer-brand svg {
  display: block;
  height: 20px;
  width: auto;
}

.footer-baseline {
  color: #8A93A5;
  max-width: 56ch;
  margin: 0.9rem 0 0;
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  border-top: 1px solid rgba(148, 163, 184, 0.15);
  margin-top: 1.5rem;
  padding-top: 1.4rem;
}

.footer-row p {
  margin: 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li + li::before {
  content: "·";
  margin: 0 0.9em;
  color: #5A6472;
}

.footer-links a {
  color: #C2CBD9;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- Page mentions légales ---------- */

.page-hero {
  background-color: var(--navy);
  background-image: radial-gradient(rgba(148, 163, 184, 0.1) 1px, transparent 1.5px);
  background-size: 22px 22px;
  color: var(--ink-inverse);
  padding: clamp(3.5rem, 8vw, 5rem) 0;
  --focus: var(--accent);
  /* Frontière perceptible en mode sombre (transparent en clair) */
  border-bottom: 1px solid var(--edge);
}

.page-hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 700;
  color: #FFFFFF;
  margin: 0;
}

.page-hero .eyebrow {
  margin-bottom: 1rem;
}

.legal {
  padding: clamp(3rem, 7vw, 5rem) 0;
}

.legal section + section {
  border-top: 1px solid var(--line);
  margin-top: 2.4rem;
  padding-top: 2.4rem;
}

.legal h2 {
  font-size: 1.25rem;
  margin: 0 0 0.8em;
}

.legal p {
  color: var(--body);
}

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

.back-link {
  display: inline-block;
  margin-top: 2.8rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-deep);
  text-decoration: none;
}

.back-link:hover {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- Page 404 ---------- */

.hero--center {
  justify-content: center;
  text-align: center;
}

.hero--center .container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.error-code {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(4.5rem, 15vw, 7.5rem);
  line-height: 1;
  letter-spacing: 0.04em;
  color: #FFFFFF;
  margin: 0 0 0.3em;
}

.error-code .type-cursor {
  width: 0.5em;
  height: 0.08em;
  margin-left: 0.1em;
}

.hero--center h1 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  max-width: none;
  margin-bottom: 0.5em;
}

.hero--center .lead {
  margin-bottom: 2.2rem;
}

/* Courte ligne anglaise sous le texte français (page 404 unique) */

.error-alt {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--muted-inverse);
  margin: -1.4rem 0 2.4rem;
}

.error-alt a {
  color: var(--accent);
}

.error-alt a:hover {
  color: #7EE7F7;
}

/* ---------- Révélation au défilement ---------- */

.js .reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

.js .cards .card:nth-child(2) { transition-delay: 0.07s; }
.js .cards .card:nth-child(3) { transition-delay: 0.14s; }
.js .steps .step:nth-child(2) { transition-delay: 0.07s; }
.js .steps .step:nth-child(3) { transition-delay: 0.14s; }
.js .steps .step:nth-child(4) { transition-delay: 0.21s; }

/* ---------- Mouvement réduit ---------- */

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .type-cursor {
    animation: none;
  }

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