/* ==========================================================================
   PISCINES PRIVÉES SÀRL — feuille de style
   Écrite à la main, sans framework. Aucune dépendance externe.
   ========================================================================== */

/* ── Polices, servies depuis le site ───────────────────────────────────────
   Auto-hébergées volontairement : appeler Google Fonts transmettrait l'IP
   de chaque visiteur à un tiers, ce qui pose problème au regard de la LPD. */

@font-face {
  font-family: "Instrument Serif";
  src: url("../fonts/instrument-serif.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Instrument Serif";
  src: url("../fonts/instrument-serif-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Geist";
  src: url("../fonts/geist.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Geist Mono";
  src: url("../fonts/geist-mono.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* ── Jetons ──────────────────────────────────────────────────────────────── */

:root {
  /* Papier */
  --paper: #f5f2ed;
  --paper-warm: #efeae1;
  --white: #fff;

  /* Encre */
  --ink: #0e1417;
  --ink-soft: #4a5560;
  --ink-mute: #8a939b;
  --line: #ddd7cd;

  /* Eau — accent de marque, repris du logo */
  --water: #6095e2;
  --water-dark: #3a6199;
  --aqua: #9fd3ee;
  --aqua-light: #cdeaf8;

  /* Profondeurs */
  --deep: #06263d;
  --abyss: #04090f;

  --swiss: #e10600;

  --display: "Instrument Serif", Georgia, "Times New Roman", serif;
  --sans: "Geist", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  /* Échelle fluide */
  --t-hero: clamp(3rem, 9vw, 8.5rem);
  --t-display: clamp(2.25rem, 6vw, 5rem);
  --t-title: clamp(1.875rem, 4vw, 3.25rem);
  --t-sub: clamp(1.25rem, 2.2vw, 1.75rem);
  --t-lead: clamp(1.0625rem, 1.35vw, 1.1875rem);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --shell: 90rem;
}

/* ── Réinitialisation ────────────────────────────────────────────────────── */

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

* { margin: 0; -webkit-tap-highlight-color: transparent; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; }
video { height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
ul, ol { list-style: none; padding: 0; }

::selection { background: var(--water); color: #fff; }

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

/* Lien d'évitement — premier arrêt au clavier */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background: var(--ink);
  color: var(--paper);
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 4px 0;
}
.skip:focus { left: 0; }

/* ── Éléments de base ────────────────────────────────────────────────────── */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: 1.25rem;
}
@media (min-width: 768px) { .shell { padding-inline: 2.5rem; } }
@media (min-width: 1280px) { .shell { padding-inline: 4.5rem; } }

.display {
  font-family: var(--display);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
}

.eyebrow-rule {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink-soft);
}
.eyebrow-rule::before {
  content: "";
  width: 3rem;
  height: 1px;
  background: var(--water);
  flex: none;
}

.tabular { font-variant-numeric: tabular-nums; }

.lead {
  font-size: var(--t-lead);
  line-height: 1.65;
  color: var(--ink-soft);
  max-width: 46ch;
}

.section { padding-block: clamp(4.5rem, 10vw, 9rem); }
.section--tight { padding-block: clamp(3.5rem, 7vw, 6rem); }
.section--warm { background: var(--paper-warm); }
.section--deep { background: var(--abyss); color: var(--white); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}
.section-head h2 { font-size: var(--t-display); max-width: 16ch; }
.section-head .lead { max-width: 34ch; }

/* Croix suisse — seul usage du rouge, en signe et non en aplat */
.swiss-cross { width: 0.625rem; height: 0.625rem; fill: var(--swiss); flex: none; }

/* ── Boutons ─────────────────────────────────────────────────────────────── */

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 1.75rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  overflow: hidden;
  transition: color 0.45s var(--ease), border-color 0.45s var(--ease);
}
@media (min-width: 768px) { .btn { padding: 1rem 2rem; } }

/* Le voile monte depuis le bas au survol */
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.5s var(--ease);
}
.btn:hover::before, .btn:focus-visible::before { transform: scaleY(1); }
.btn > * { position: relative; z-index: 1; }

.btn svg { width: 0.875rem; height: 0.875rem; transition: transform 0.5s var(--ease); }
.btn:hover svg { transform: translateX(4px); }

.btn--primary { background: var(--ink); color: var(--paper); }
.btn--primary::before { background: var(--water); }
.btn--primary:hover { color: #fff; }

.btn--ghost { border-color: var(--line); color: var(--ink); }
.btn--ghost::before { background: var(--ink); }
.btn--ghost:hover { color: var(--paper); }

.btn--light { background: #fff; color: var(--ink); }
.btn--light::before { background: var(--water); }
.btn--light:hover { color: #fff; }

.btn--send { background: var(--water); color: #fff; }
.btn--send::before { background: var(--paper); }
.btn--send:hover { color: var(--ink); }
.btn[disabled] { opacity: 0.6; cursor: wait; }
.btn[disabled]::before { transform: scaleY(0); }

/* ── En-tête ─────────────────────────────────────────────────────────────── */

.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease);
}
.header.is-scrolled {
  background: rgb(245 242 237 / 0.88);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1rem;
}
@media (min-width: 768px) { .header__inner { padding-block: 1.25rem; } }

.brand { display: flex; align-items: center; gap: 0.75rem; }
.brand img { height: 2.25rem; width: auto; }
@media (min-width: 768px) { .brand img { height: 2.5rem; } }
.brand__name { display: none; line-height: 1.1; }
@media (min-width: 640px) { .brand__name { display: block; } }
.brand__name strong {
  display: block;
  font-family: var(--display);
  font-weight: 400;
  font-size: 1.125rem;
}
@media (min-width: 768px) { .brand__name strong { font-size: 1.25rem; } }
.brand__name span {
  display: block;
  margin-top: 0.25rem;
  font-family: var(--mono);
  font-size: 0.5rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.nav { display: none; align-items: center; gap: 2.25rem; }
@media (min-width: 1024px) { .nav { display: flex; } }
.nav a { position: relative; font-size: 0.875rem; color: var(--ink-soft); padding-block: 0.25rem; transition: color 0.3s; }
.nav a:hover { color: var(--ink); }
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 1px;
  background: var(--water);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease);
}
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }

.header__actions { display: flex; align-items: center; gap: 0.75rem; }

.phone-pill {
  display: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.65rem 1.25rem;
  font-size: 0.875rem;
  transition: background 0.35s, color 0.35s, border-color 0.35s;
}
@media (min-width: 768px) { .phone-pill { display: inline-flex; } }
.phone-pill:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }

.burger {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: none;
  cursor: pointer;
}
@media (min-width: 1024px) { .burger { display: none; } }
.burger span { display: block; width: 1rem; height: 1px; background: var(--ink); transition: transform 0.35s var(--ease); }
.burger[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.burger[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* Panneau plein écran */
.menu {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: var(--paper);
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--ease), visibility 0.35s;
}
.menu.is-open { opacity: 1; visibility: visible; }
@media (min-width: 1024px) { .menu { display: none; } }
.menu a {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  padding-block: 1rem;
  font-family: var(--display);
  font-size: clamp(2rem, 9vw, 3rem);
  transition: color 0.3s;
}
.menu a:hover { color: var(--water); }
.menu a i {
  font-family: var(--mono);
  font-style: normal;
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  color: var(--ink-mute);
}
.menu .phone-menu {
  align-self: flex-start;
  margin-top: 2rem;
  border: 0;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  padding: 0.9rem 1.75rem;
  font-family: var(--sans);
  font-size: 0.875rem;
}

/* ── Hero ────────────────────────────────────────────────────────────────── */

.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100svh;
  overflow: hidden;
  background: var(--paper);
}
.hero__media { position: absolute; inset: 0; }
.hero__media video,
.hero__media img { width: 100%; height: 100%; object-fit: cover; }

/* Voiles de lisibilité : le papier reprend la main aux extrémités.
   Plus hauts et plus denses en portrait, où le recadrage vertical étire
   la bande d'eau qui viendrait sinon sous le texte. */
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  z-index: 1;
  pointer-events: none;
}
.hero::before {
  top: 0;
  height: 34%;
  background: linear-gradient(to bottom, var(--paper), rgb(245 242 237 / 0.8), transparent);
}
.hero::after {
  bottom: 0;
  height: 58%;
  background: linear-gradient(to top, var(--paper), rgb(245 242 237 / 0.92), transparent);
}
@media (min-width: 768px) {
  .hero::before { height: 46%; }
  .hero::after { height: 42%; }
}

.hero__body {
  position: relative;
  z-index: 2;
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: space-between;
  gap: 3rem;
  padding-block: 7rem 2rem;
}
@media (min-width: 768px) { .hero__body { padding-block: 8rem 3rem; } }

.hero h1 { font-size: var(--t-hero); max-width: 11ch; margin-top: 1.5rem; }
.hero h1 em { font-style: italic; }

.hero__foot { display: flex; flex-direction: column; gap: 2rem; }
@media (min-width: 1024px) {
  .hero__foot { flex-direction: row; align-items: flex-end; justify-content: space-between; gap: 4rem; }
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}
.meta dt { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-mute); }
.meta dd { margin-top: 0.375rem; font-size: 0.875rem; }
@media (min-width: 768px) { .meta dd { font-size: 1rem; } }

/* ── Bandeau défilant ────────────────────────────────────────────────────── */

.marquee {
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: var(--paper-warm);
  padding-block: 1.5rem;
}
.marquee__track {
  display: flex;
  width: max-content;
  align-items: center;
  gap: 2.5rem;
  animation: marquee 44s linear infinite;
}
@media (min-width: 768px) { .marquee__track { gap: 3.5rem; } }
.marquee__track:hover { animation-play-state: paused; }
.marquee span {
  font-family: var(--display);
  font-size: 1.5rem;
  white-space: nowrap;
  color: var(--ink-soft);
}
@media (min-width: 768px) { .marquee span { font-size: 1.875rem; } }
.marquee img { height: 1.5rem; width: auto; opacity: 0.4; flex: none; }

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ── Manifeste ───────────────────────────────────────────────────────────── */

.manifesto p.statement {
  font-family: var(--display);
  font-size: var(--t-display);
  line-height: 1.04;
  max-width: 22ch;
}
.manifesto .accent { font-style: italic; color: var(--water); }

.pillars {
  display: grid;
  gap: 2.5rem;
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--line);
}
@media (min-width: 768px) { .pillars { grid-template-columns: repeat(3, 1fr); gap: 3rem; } }
.pillars h3 { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--water); font-weight: 500; }
.pillars p { margin-top: 0.75rem; color: var(--ink-soft); }

/* ── Métiers ─────────────────────────────────────────────────────────────── */

.services { border-top: 1px solid var(--line); }
.service {
  position: relative;
  display: block;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
/* Nappe d'encre qui monte au survol */
.service::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--ink);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.6s var(--ease);
}
.service:hover::before, .service:focus-visible::before { transform: scaleY(1); }

.service__row {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding-block: 2rem;
}
@media (min-width: 768px) { .service__row { gap: 2.5rem; padding-block: 2.75rem; } }
@media (min-width: 1024px) { .service__row { padding-block: 3.5rem; } }

.service__index { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.2em; color: var(--ink-mute); flex: none; transition: color 0.45s; }
.service:hover .service__index { color: var(--water); }

.service__text { flex: 1; min-width: 0; }
.service h3 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.75rem, 5vw, 3.25rem);
  line-height: 1;
  transition: color 0.45s;
}
.service p { margin-top: 0.5rem; font-size: 0.875rem; color: var(--ink-soft); max-width: 46ch; transition: color 0.45s; }
@media (min-width: 768px) { .service p { font-size: 1rem; } }
.service:hover h3 { color: var(--paper); }
.service:hover p { color: rgb(245 242 237 / 0.6); }

.service__thumb {
  display: none;
  width: 0;
  height: 7rem;
  flex: none;
  overflow: hidden;
  opacity: 0;
  transition: width 0.6s var(--ease), opacity 0.6s var(--ease);
}
@media (min-width: 1024px) { .service__thumb { display: block; } }
.service:hover .service__thumb { width: 13rem; opacity: 1; }
.service__thumb video, .service__thumb img { width: 13rem; height: 100%; object-fit: cover; }

.service__arrow { flex: none; color: var(--ink-mute); transition: color 0.45s, transform 0.45s var(--ease); }
.service:hover .service__arrow { color: var(--paper); transform: translateX(6px); }

/* ── Bande de séquences ──────────────────────────────────────────────────── */
/* Défilement horizontal natif : la souris, le trackpad, le doigt et le
   clavier le pilotent tous, sans une ligne de JavaScript. */

.strip { overflow: hidden; padding-block: clamp(3.5rem, 7vw, 6rem); }
.strip__track {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-inline: 1.25rem;
  padding-bottom: 1rem;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}
@media (min-width: 768px) { .strip__track { gap: 1.5rem; padding-inline: 2.5rem; } }
@media (min-width: 1280px) { .strip__track { padding-inline: 4.5rem; } }

.strip figure {
  position: relative;
  flex: none;
  width: 74vw;
  height: 52vw;
  overflow: hidden;
  scroll-snap-align: start;
}
@media (min-width: 640px) { .strip figure { width: 50vw; height: 36vw; } }
@media (min-width: 1024px) { .strip figure { width: 33vw; height: 27vw; } }
.strip figure video, .strip figure img { width: 100%; height: 100%; object-fit: cover; }
.strip figcaption {
  position: absolute;
  inset: auto 0 0 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem;
  color: #fff;
  background: linear-gradient(to top, rgb(4 9 15 / 0.8), rgb(4 9 15 / 0.1) 55%, transparent);
}
.strip figcaption b { display: block; font-family: var(--display); font-weight: 400; font-size: 1.25rem; margin-top: 0.375rem; }
@media (min-width: 768px) { .strip figcaption b { font-size: 1.5rem; } }
.strip figcaption i { font-style: normal; font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.2em; text-transform: uppercase; color: rgb(255 255 255 / 0.55); }

/* ── Profondeur (bande sombre) ───────────────────────────────────────────── */

.depth { position: relative; overflow: hidden; background: var(--abyss); color: #fff; }
.depth__media { position: absolute; inset: 0; }
.depth__media video, .depth__media img { width: 100%; height: 100%; object-fit: cover; }
.depth__veil { position: absolute; inset: 0; background: rgb(4 9 15 / 0.55); }
.depth__body { position: relative; z-index: 1; padding-block: clamp(5rem, 12vw, 9rem); }
.depth h2 { font-size: var(--t-display); max-width: 15ch; }
.depth h2 em { font-style: italic; color: var(--aqua-light); }
.depth .lead { color: rgb(255 255 255 / 0.72); }
.depth .eyebrow-rule { color: var(--aqua); }
.depth .eyebrow-rule::before { background: var(--aqua); }

/* Filet ondulé — la ligne d'eau, motif repris dans tout le site */
.wave { display: block; width: 100%; height: 1.5rem; }
.wave path { fill: none; stroke: var(--line); stroke-width: 1; }
.wave--aqua path { stroke: rgb(159 211 238 / 0.5); }

/* ── Chiffres ────────────────────────────────────────────────────────────── */

.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2.5rem 1.5rem; }
@media (min-width: 1024px) { .stats { grid-template-columns: repeat(4, 1fr); } }
.stats b {
  display: block;
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  line-height: 1;
}
.stats .unit { color: var(--water); }
.stats .prefix { color: var(--ink-mute); }
.stats p { margin-top: 0.75rem; font-size: 0.875rem; color: var(--ink-soft); max-width: 22ch; }

/* ── Engagements ─────────────────────────────────────────────────────────── */

.grid-cards { display: grid; gap: 1px; background: var(--line); }
@media (min-width: 640px) { .grid-cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .grid-cards--3 { grid-template-columns: repeat(3, 1fr); } }
.grid-cards > * { background: var(--paper-warm); padding: 1.75rem; }
@media (min-width: 768px) { .grid-cards > * { padding: 2.25rem; } }
.grid-cards h3 { font-family: var(--display); font-weight: 400; font-size: 1.5rem; }
.grid-cards p { margin-top: 0.75rem; font-size: 0.875rem; color: var(--ink-soft); }

/* ── Appel final ─────────────────────────────────────────────────────────── */

.cta { text-align: center; background: var(--paper-warm); }
.cta h2 { font-size: var(--t-display); max-width: 18ch; margin-inline: auto; }
.cta .lead { margin-inline: auto; margin-top: 1.5rem; text-align: center; }
.cta__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; margin-top: 2.5rem; }

/* ── En-tête de page interne ─────────────────────────────────────────────── */

.pagehead { padding-top: 8rem; background: var(--paper); }
@media (min-width: 768px) { .pagehead { padding-top: 10rem; } }
.crumbs { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-mute); margin-bottom: 2.5rem; }
.crumbs a { transition: color 0.3s; }
.crumbs a:hover { color: var(--ink); }
.crumbs em { font-style: normal; color: var(--line); margin-inline: 0.625rem; }
.crumbs strong { font-weight: 400; color: var(--ink); }

.pagehead__grid { display: grid; gap: 2rem; }
@media (min-width: 1024px) { .pagehead__grid { grid-template-columns: 1.2fr 1fr; align-items: end; gap: 4rem; } }
.pagehead h1 { display: flex; gap: 1.25rem; font-size: var(--t-display); }
@media (min-width: 768px) { .pagehead h1 { gap: 2rem; } }
.pagehead h1 .idx { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.2em; color: var(--water); margin-top: 0.75rem; flex: none; }
.pagehead h1 span:last-child { max-width: 15ch; }
.pagehead .lead { border-left: 1px solid var(--line); padding-left: 1.5rem; max-width: 48ch; }

.pagehead__media { margin-top: 3.5rem; height: 42svh; overflow: hidden; }
@media (min-width: 768px) { .pagehead__media { margin-top: 5rem; height: 62svh; } }
.pagehead__media video, .pagehead__media img { width: 100%; height: 100%; object-fit: cover; }

/* ── Étapes ──────────────────────────────────────────────────────────────── */

.steps { border-top: 1px solid var(--line); }
.step { display: grid; gap: 0.75rem; padding-block: 2rem; border-bottom: 1px solid var(--line); }
@media (min-width: 768px) { .step { grid-template-columns: 5rem 1fr 1.2fr; gap: 2.5rem; align-items: baseline; padding-block: 2.5rem; } }
.step__n { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.2em; color: var(--ink-mute); }
.step h3 { font-family: var(--display); font-weight: 400; font-size: clamp(1.375rem, 2.6vw, 1.875rem); }
.step p { color: var(--ink-soft); font-size: 0.9375rem; }

/* ── Tableaux ────────────────────────────────────────────────────────────── */

.table-wrap { overflow-x: auto; border: 1px solid var(--line); background: var(--white); }
table { width: 100%; border-collapse: collapse; min-width: 34rem; }
th, td { text-align: left; padding: 1rem; font-size: 0.875rem; vertical-align: top; border-bottom: 1px solid var(--line); }
@media (min-width: 768px) { th, td { padding: 1.25rem; } }
thead th { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.2em; text-transform: uppercase; font-weight: 500; color: var(--ink-soft); }
thead th.is-key { color: var(--water); }
tbody th { font-weight: 400; color: var(--ink-soft); }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }
td.is-key { color: var(--ink); }

/* Paramètres de l'eau */
.params { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
@media (min-width: 640px) { .params { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .params { grid-template-columns: repeat(3, 1fr); } }
.params > div { background: var(--white); padding: 1.5rem; }
.params .row { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; border-bottom: 1px solid var(--line); padding-bottom: 0.75rem; }
.params h3 { font-family: var(--display); font-weight: 400; font-size: 1.5rem; }
.params .range { font-family: var(--mono); font-size: 0.75rem; color: var(--water); }
.params p { margin-top: 0.875rem; font-size: 0.875rem; color: var(--ink-soft); }

/* ── Formulaire ──────────────────────────────────────────────────────────── */

.form { display: grid; gap: 1.25rem; }
.form__row { display: grid; gap: 1.25rem; }
@media (min-width: 640px) { .form__row { grid-template-columns: repeat(2, 1fr); } }
.form label { display: block; font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 0.625rem; }
.form input, .form select, .form textarea {
  width: 100%;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 0.875rem 1rem;
  font-size: 0.875rem;
  transition: border-color 0.3s;
}
.form textarea { resize: vertical; min-height: 9rem; }
.form input:focus, .form select:focus, .form textarea:focus { border-color: var(--water); outline: none; }
.form [aria-invalid="true"] { border-color: rgb(225 6 0 / 0.6); }
.form .err { margin-top: 0.5rem; font-size: 0.75rem; color: var(--swiss); }
.form__foot { display: flex; flex-wrap: wrap; align-items: center; gap: 1.25rem; padding-top: 0.5rem; }
.form__note { font-size: 0.75rem; color: var(--ink-soft); }
.honey { position: absolute; left: -9999px; width: 0; height: 0; overflow: hidden; }

.alert { border-radius: 2px; padding: 0.875rem 1rem; font-size: 0.875rem; }
.alert--error { border: 1px solid rgb(225 6 0 / 0.3); background: rgb(225 6 0 / 0.06); color: var(--ink-soft); }
.alert--ok { border: 1px solid rgb(96 149 226 / 0.35); background: var(--white); padding: 2.25rem; }
@media (min-width: 768px) { .alert--ok { padding: 3rem; } }
.alert--ok h2 { font-family: var(--display); font-weight: 400; font-size: var(--t-sub); margin-top: 1.25rem; }
.alert--ok p { margin-top: 1rem; color: var(--ink-soft); }
.alert a { color: var(--water); text-decoration: underline; text-underline-offset: 4px; }

.contact-grid { display: grid; gap: 3rem; }
@media (min-width: 1024px) { .contact-grid { grid-template-columns: 1fr 1.15fr; gap: 5rem; align-items: start; } }
.contact-list { display: grid; gap: 1.75rem; }
.contact-list dt { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-mute); }
.contact-list dd { margin-top: 0.375rem; font-size: 1.125rem; }
.contact-list dd a:hover { color: var(--water); }

/* ── Pied de page ────────────────────────────────────────────────────────── */

.footer { background: var(--abyss); color: rgb(245 242 237 / 0.7); padding-block: 4rem 2rem; }
.footer__grid { display: grid; gap: 2.5rem; }
@media (min-width: 768px) { .footer__grid { grid-template-columns: 1.4fr 1fr 1fr; gap: 4rem; } }
.footer__brand { display: flex; align-items: center; gap: 0.75rem; color: #fff; }
.footer__brand img { height: 2.75rem; width: auto; }
.footer__brand strong { font-family: var(--display); font-weight: 400; font-size: 1.25rem; }
.footer p { font-size: 0.875rem; max-width: 34ch; margin-top: 1.5rem; }
.footer h2 { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.2em; text-transform: uppercase; color: rgb(245 242 237 / 0.4); font-weight: 500; margin-bottom: 1.25rem; }
.footer li + li { margin-top: 0.625rem; }
.footer a { font-size: 0.875rem; transition: color 0.3s; }
.footer a:hover { color: var(--aqua); }
.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgb(255 255 255 / 0.1);
  font-size: 0.75rem;
  color: rgb(245 242 237 / 0.4);
}

/* ── Apparition au défilement ────────────────────────────────────────────── */
/* Sans JavaScript actif, `.reveal` reste visible : le contenu ne dépend
   jamais du script. La classe n'est posée qu'une fois celui-ci chargé. */

.js .reveal { opacity: 0; transform: translateY(1.5rem); }
.js .reveal.is-in {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

/* ── Accessibilité ───────────────────────────────────────────────────────── */

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