/* ============================================
   AQUAJARDIN DESIGN — bassin-piscine-naturelle.fr
   Persona : propriétaire de maison avec jardin, projet plaisir familial,
   sensible à l'écologie et au bien-vivre. Ton rassurant, inspirant.
   Design : organique et aquatique. Bleu lagon, vert d'eau, sable,
   formes très arrondies, dégradés doux, respiration.
   ADN distinct de Frigalis (industriel), Fornetto (trattoria), Verdalys (galerie).
   ============================================ */
:root {
  --profond: #0f3f46;
  --lagon: #176b76;
  --lagon-clair: #2e9aa6;
  --eau: #7fc9cf;
  --ecume: #e6f4f4;
  --sable: #f3ece0;
  --sable-2: #e6d9c4;
  --galet: #8a8578;
  --encre: #1b2b2d;
  --gris: #6b7a7c;
  --ligne: #d9e6e6;
  --blanc: #ffffff;
  --feuille: #5c8c4a;
  --radius: 18px;
  --radius-xl: 34px;
  --shadow: 0 16px 48px rgba(15, 63, 70, .13);
  --titre: "Segoe UI", "Avenir Next", system-ui, -apple-system, Arial, sans-serif;
  --texte: "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--texte); color: var(--encre); background: var(--blanc); line-height: 1.75; font-size: 17.5px; }
img { max-width: 100%; display: block; }
a { color: var(--lagon); }
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* ---------- Bandeau ---------- */
.topbar { background: var(--profond); color: var(--eau); font-size: 13.5px; padding: 9px 0; }
.topbar .container { display: flex; justify-content: center; gap: 34px; flex-wrap: wrap; }
.topbar span::before { content: "🌿 "; }

/* ---------- Header ---------- */
header.site { background: rgba(255,255,255,.96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--ligne); position: sticky; top: 0; z-index: 50; }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 15px 0; gap: 22px; }
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--profond); }
.logo svg { width: 42px; height: 42px; flex-shrink: 0; }
.logo b { font-size: 22px; font-weight: 700; display: block; line-height: 1.1; letter-spacing: -.3px; }
.logo small { display: block; font-size: 11px; color: var(--lagon-clair); letter-spacing: 1.4px; font-weight: 600; }
nav.menu { display: flex; gap: 3px; align-items: center; }
nav.menu > div { position: relative; }
nav.menu a.item { display: block; white-space: nowrap; padding: 10px 15px; color: var(--encre); text-decoration: none; font-size: 15px; font-weight: 600; border-radius: 100px; }
nav.menu a.item:hover { background: var(--ecume); color: var(--lagon); }
.sub { display: none; position: absolute; top: 100%; left: 0; background: var(--blanc); border: 1px solid var(--ligne); border-radius: var(--radius); box-shadow: var(--shadow); min-width: 272px; padding: 8px; }

/* Sous-menus : survol reserve au desktop (sinon :focus-within empeche de replier sur mobile) */
@media (min-width: 981px) {
  nav.menu > div:hover > .sub,
  nav.menu > div:focus-within > .sub { display: block; }
  nav.menu > div > a.item::after { content: "▾"; font-size: .72em; margin-left: 6px; opacity: .55; vertical-align: middle; }
}
.sub a { display: block; padding: 10px 14px; text-decoration: none; color: var(--encre); font-size: 14.5px; border-radius: 12px; }
.sub a:hover { background: var(--ecume); color: var(--lagon); }
.btn { display: inline-block; white-space: nowrap; background: var(--lagon); color: #fff !important; text-decoration: none; font-weight: 700; padding: 13px 28px; border-radius: 100px; border: 0; cursor: pointer; font-size: 15.5px; transition: background .2s, transform .2s, box-shadow .2s; font-family: var(--texte); }
.btn:hover { background: var(--lagon-clair); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(23,107,118,.28); }
.btn.ghost { background: transparent; color: var(--lagon) !important; box-shadow: inset 0 0 0 2px var(--lagon); }
.btn.ghost:hover { background: var(--ecume); }
.btn.big { padding: 18px 38px; font-size: 17.5px; }
nav.menu > a.btn { flex-shrink: 0; }
.burger { display: none; background: none; border: 0; font-size: 26px; cursor: pointer; color: var(--profond); }
.sub-toggle { display: none; }

/* ---------- Hero ---------- */
.hero { background: linear-gradient(165deg, var(--ecume) 0%, var(--blanc) 55%, var(--sable) 100%); padding: 72px 0 84px; position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; bottom: -120px; left: -100px; width: 520px; height: 520px; border-radius: 50%; background: radial-gradient(circle, rgba(127,201,207,.32) 0%, transparent 68%); }
.hero .container { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: 54px; align-items: center; }
.hero h1 { font-size: 46px; line-height: 1.16; margin-bottom: 22px; font-weight: 800; color: var(--profond); letter-spacing: -.8px; }
.hero h1 em { font-style: normal; color: var(--lagon-clair); }
.hero p.lead { font-size: 19.5px; color: var(--gris); margin-bottom: 30px; max-width: 540px; }
.hero .points { list-style: none; display: grid; gap: 12px; margin-bottom: 34px; font-size: 16px; }
.hero .points li { padding-left: 30px; position: relative; }
.hero .points li::before { content: "💧"; position: absolute; left: 0; }
.hero-visual { border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow); }
.hero-visual img { width: 100%; height: 420px; object-fit: cover; }

/* ---------- Sections ---------- */
section { padding: 82px 0; }
section.alt { background: var(--ecume); }
section.sable { background: var(--sable); }
section.profond { background: var(--profond); color: var(--ecume); }
section.profond h2.title, section.profond h3 { color: #fff; }
section.profond .card { background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.14); }
section.profond .card p { color: var(--eau); }
.kicker { display: inline-block; background: var(--ecume); color: var(--lagon); font-size: 13px; font-weight: 700; padding: 6px 18px; border-radius: 100px; margin-bottom: 14px; }
section.alt .kicker { background: var(--blanc); }
h2.title { font-size: 34px; color: var(--profond); margin-bottom: 16px; line-height: 1.24; font-weight: 800; letter-spacing: -.5px; }
p.sub-title { color: var(--gris); max-width: 700px; margin-bottom: 44px; font-size: 17.5px; }
.center { text-align: center; }
.center p.sub-title { margin-left: auto; margin-right: auto; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; align-items: center; }
.card { background: var(--blanc); border: 1px solid var(--ligne); border-radius: var(--radius-xl); padding: 30px; }
.card h3 { color: var(--profond); font-size: 21px; margin-bottom: 11px; font-weight: 700; }
.card p { font-size: 15.5px; color: var(--gris); margin-bottom: 16px; }
.card .tag { display: inline-block; background: var(--ecume); color: var(--lagon); font-weight: 700; font-size: 12.5px; padding: 5px 15px; border-radius: 100px; margin-bottom: 13px; }
.card a.more { font-weight: 700; text-decoration: none; font-size: 15px; color: var(--lagon); }
.card a.more:hover { color: var(--lagon-clair); }
.media { border-radius: var(--radius-xl) var(--radius-xl) 0 0; overflow: hidden; margin: -30px -30px 22px; }
.media img { width: 100%; height: 210px; object-fit: cover; }

/* ---------- Étapes ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step { background: var(--blanc); border-radius: var(--radius-xl); padding: 28px; box-shadow: 0 6px 22px rgba(15,63,70,.07); }
.step::before { counter-increment: step; content: counter(step); display: flex; width: 42px; height: 42px; align-items: center; justify-content: center; background: var(--ecume); color: var(--lagon); border-radius: 50%; font-weight: 800; font-size: 18px; margin-bottom: 16px; }
.step h3 { font-size: 18px; color: var(--profond); margin-bottom: 8px; font-weight: 700; }
.step p { font-size: 14.5px; color: var(--gris); }

/* ---------- Tableaux ---------- */
.table-wrap { overflow-x: auto; }
table.prix { width: 100%; border-collapse: collapse; background: var(--blanc); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
table.prix th { background: var(--profond); color: #fff; text-align: left; padding: 15px 20px; font-size: 14.5px; font-weight: 600; }
table.prix td { color: var(--encre); padding: 14px 20px; border-bottom: 1px solid var(--ligne); font-size: 15.5px; }
table.prix tr:nth-child(even) td { background: var(--ecume); }
table.prix tr:last-child td { border-bottom: 0; }
table.prix td strong { color: var(--lagon); }

/* ---------- Images ---------- */
figure.illus { margin: 34px 0; border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow); }
figure.illus img { width: 100%; height: 340px; object-fit: cover; }
figure.illus figcaption { background: var(--profond); color: var(--eau); font-size: 13.5px; padding: 13px 22px; }

/* ---------- FAQ ---------- */
.faq details { background: var(--blanc); border: 1px solid var(--ligne); border-radius: var(--radius); margin-bottom: 14px; }
.faq summary { cursor: pointer; font-weight: 700; padding: 20px 52px 20px 24px; color: var(--profond); font-size: 17px; list-style: none; position: relative; }
.faq summary::after { content: "▾"; position: absolute; right: 24px; top: 20px; color: var(--lagon-clair); transition: transform .25s; }
.faq details[open] summary::after { transform: rotate(180deg); }
.faq .a { padding: 0 24px 20px; color: var(--gris); font-size: 15.5px; }

/* ---------- CTA ---------- */
.cta-band { background: linear-gradient(125deg, var(--profond), var(--lagon) 70%, var(--lagon-clair)); border-radius: var(--radius-xl); color: #fff; padding: 52px; display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-band h2 { font-size: 29px; margin-bottom: 8px; color: #fff; font-weight: 800; }
.cta-band p { color: var(--eau); }
.cta-band .btn { background: #fff; color: var(--lagon) !important; }
.cta-band .btn:hover { background: var(--ecume); }

/* ---------- Formulaire ---------- */
.devis-box { max-width: 720px; margin: 0 auto; background: var(--blanc); border-radius: var(--radius-xl); box-shadow: var(--shadow); padding: 38px; scroll-margin-top: 130px; }
.progress { height: 8px; background: var(--ecume); border-radius: 100px; margin-bottom: 30px; overflow: hidden; }
.progress > div { height: 100%; background: linear-gradient(90deg, var(--lagon), var(--eau)); width: 20%; transition: width .4s; }
.f-step { display: none; }
.f-step.on { display: block; animation: fade .3s; }
@keyframes fade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.f-step h2 { color: var(--profond); font-size: 25px; margin-bottom: 8px; font-weight: 800; }
.f-step p.help { color: var(--gris); font-size: 15px; margin-bottom: 24px; }
.choices { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 26px; }
.choice { border: 2px solid var(--ligne); border-radius: var(--radius); padding: 19px; cursor: pointer; font-weight: 600; font-size: 15.5px; text-align: center; transition: all .2s; background: var(--blanc); color: var(--encre); }
.choice small { display: block; font-weight: 400; color: var(--gris); font-size: 13px; margin-top: 5px; }
.choice:hover { border-color: var(--eau); background: var(--ecume); }
.choice.sel { border-color: var(--lagon); background: var(--ecume); }
.fields { display: grid; gap: 17px; margin-bottom: 26px; }
.fields label { font-weight: 700; font-size: 14.5px; color: var(--profond); display: block; margin-bottom: 7px; }
.fields input, .fields select, .fields textarea { width: 100%; padding: 14px 16px; border: 2px solid var(--ligne); border-radius: 14px; font-size: 16px; font-family: inherit; background: var(--blanc); }
.fields input:focus, .fields select:focus, .fields textarea:focus { outline: none; border-color: var(--lagon); }
.f-nav { display: flex; justify-content: space-between; gap: 14px; }
.rgpd { font-size: 12.5px; color: var(--gris); margin-top: 16px; }
.merci { text-align: center; padding: 34px 10px; }
.merci .pic { font-size: 56px; margin-bottom: 14px; }
.merci h2 { color: var(--feuille); margin-bottom: 12px; font-size: 27px; font-weight: 800; }

/* ---------- Footer ---------- */
footer.site { background: var(--profond); color: var(--eau); padding: 62px 0 28px; font-size: 14.5px; }
footer.site .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr; gap: 28px; margin-bottom: 38px; }
footer.site h4 { color: #fff; font-size: 15px; margin-bottom: 14px; font-weight: 700; }
footer.site a { color: var(--eau); text-decoration: none; display: block; padding: 4px 0; }
footer.site a:hover { color: #fff; }
footer.site .legal { border-top: 1px solid rgba(255,255,255,.14); padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 13px; color: var(--eau); }

/* ---------- Landing SEA ---------- */
body.landing header.site .nav { justify-content: center; }
body.landing .hero { padding: 46px 0 54px; }

/* ---------- Responsive ---------- */
/* Ecrans intermediaires (petits portables) : on resserre la barre de navigation
   pour eviter que les 5 menus + le bouton ne debordent. */
@media (min-width: 981px) and (max-width: 1200px) {
  nav.menu { gap: 0; }
  nav.menu a.item { padding-left: 8px; padding-right: 8px; font-size: 13.5px; }
  nav.menu > a.btn { padding-left: 17px; padding-right: 17px; font-size: 14.5px; }
  .logo small { display: none; }
}

@media (max-width: 980px) {
  /* Bandeau : une seule accroche sur mobile, sur une ligne compacte */
  .topbar { font-size: 11.5px; padding: 6px 0; letter-spacing: .2px; }
  .topbar .container { flex-wrap: nowrap; justify-content: center; gap: 0; padding-left: 14px; padding-right: 14px; }
  .topbar span:not(:first-child) { display: none; }
  .topbar span:first-child { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .hero .container, .grid-3, .grid-2, .steps, footer.site .cols { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
  .hero-visual img { height: 250px; }
  h2.title { font-size: 27px; }
  section { padding: 52px 0; }
  figure.illus img { height: 230px; }
  nav.menu { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--blanc); flex-direction: column; align-items: stretch; padding: 14px; box-shadow: var(--shadow); max-height: calc(100vh - 120px); overflow-y: auto; }
  nav.menu.open { display: flex; }
  nav.menu > div { position: relative; }
  .sub { position: static; display: none; box-shadow: none; border: 0; border-left: 3px solid var(--ecume); margin: 0 0 6px 14px; padding: 2px 0 2px 10px; }
  nav.menu > div.open > .sub { display: block; }
  .sub-toggle { display: block; position: absolute; right: 2px; top: 0; width: 48px; height: 42px; background: none; border: 0; font-size: 15px; color: var(--lagon); cursor: pointer; transition: transform .2s; }
  nav.menu > div.open > .sub-toggle { transform: rotate(180deg); }
  nav.menu a.item { padding-right: 54px; }
  nav.menu > a.btn { margin-top: 10px; text-align: center; }
  .burger { display: block; }
  .choices { grid-template-columns: 1fr; }
  .cta-band { padding: 34px; }
}