/* ====== PLÂTRIER-PLAQUISTE — charte sobre & pro ====== */
:root {
  --slate: #2f3640;        /* gris ardoise */
  --slate-2: #434b56;
  --plaster: #f3ede2;      /* beige plâtre */
  --plaster-2: #e7dccb;
  --white: #ffffff;
  --ink: #23272e;
  --muted: #6b7280;
  --line: #e3ddd2;
  --accent: #c8551f;       /* accent franc terre-cuite */
  --accent-dark: #a8430f;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(47, 54, 64, .10);
  --shadow-sm: 0 3px 12px rgba(47, 54, 64, .08);
  --maxw: 1140px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.15; color: var(--slate); margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; letter-spacing: -.02em; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); font-weight: 800; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1rem; color: var(--slate-2); }
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; }

.container { width: min(92%, var(--maxw)); margin-inline: auto; }

.eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .6rem;
}

/* ====== Buttons ====== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem;
  padding: .7rem 1.3rem;
  border-radius: 10px;
  font-weight: 700;
  font-size: .95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform .15s var(--ease), background .2s, box-shadow .2s, color .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-lg { padding: .9rem 1.6rem; font-size: 1rem; }
.btn-block { width: 100%; }
.btn-accent { background: var(--accent); color: #fff; box-shadow: var(--shadow-sm); }
.btn-accent:hover { background: var(--accent-dark); }
.btn-outline { background: transparent; border-color: var(--slate); color: var(--slate); }
.btn-outline:hover { background: var(--slate); color: #fff; }

/* btn-tel hérite du look bouton là où c'est un .btn ; sinon lien simple */
.btn-tel { font-weight: 700; }

/* ====== Header ====== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: inline-flex; align-items: center; gap: .6rem; font-weight: 800; color: var(--slate); }
.brand-mark { display: inline-flex; }
.brand-name { font-size: 1.15rem; letter-spacing: -.01em; }

.nav { display: flex; align-items: center; gap: 1.5rem; }
.nav > a:not(.btn) { font-weight: 600; color: var(--slate-2); position: relative; }
.nav > a:not(.btn):hover { color: var(--accent); }
.nav-tel { color: var(--slate); }
.nav-tel:hover { color: var(--accent); }

.burger {
  display: none;
  flex-direction: column; gap: 5px;
  background: none; border: 0; cursor: pointer; padding: 8px;
}
.burger span { width: 26px; height: 3px; background: var(--slate); border-radius: 3px; transition: .25s var(--ease); }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ====== Hero ====== */
.hero { position: relative; overflow: hidden; background: var(--plaster); }
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(200, 85, 31, .12), transparent 60%),
    linear-gradient(180deg, var(--plaster) 0%, var(--plaster-2) 100%);
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0; opacity: .5;
  background-image:
    linear-gradient(rgba(47, 54, 64, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 54, 64, .04) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 40%, #000);
  mask-image: linear-gradient(180deg, transparent, #000 40%, #000);
}
.hero-inner { position: relative; padding: clamp(3rem, 8vw, 6rem) 0; }
.hero-text { max-width: 720px; }
.hero-tagline { min-height: .2em; }
.hero-tagline:empty::before { content: "Vos murs, cloisons et plafonds, entre de bonnes mains."; }
.hero-sub { font-size: 1.15rem; color: var(--slate-2); max-width: 620px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin: 1.6rem 0 1.4rem; }
.hero-badges { list-style: none; display: flex; flex-wrap: wrap; gap: 1.2rem; padding: 0; margin: 0; }
.hero-badges li { display: inline-flex; align-items: center; gap: .4rem; font-weight: 600; color: var(--slate); font-size: .92rem; }
.hero-badges svg { color: var(--accent); }

/* ====== Trust band ====== */
.trust { background: var(--slate); color: #fff; }
.trust-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1rem; padding: 1.6rem 0;
}
.trust-item { display: flex; flex-direction: column; text-align: center; }
.trust-item strong { font-size: 1.05rem; }
.trust-item span { color: #c6ccd4; font-size: .88rem; }

/* ====== Sections ====== */
.section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.section-alt { background: var(--plaster); }
.section-head { max-width: 640px; margin: 0 auto 2.6rem; text-align: center; }
.section-head p { color: var(--muted); }

/* ====== Service cards ====== */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.7rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: transform .2s var(--ease), box-shadow .2s, border-color .2s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--plaster-2); }
.card-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 64px; height: 64px; border-radius: 14px;
  background: var(--plaster); color: var(--accent);
  margin-bottom: 1rem;
}
.card h3 { margin-bottom: .4rem; }
.card p { margin: 0; color: var(--muted); font-size: .96rem; }

/* ====== Why ====== */
.why-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 2.5rem; align-items: center; }
.why-list { list-style: none; padding: 0; margin: 1.2rem 0 1.6rem; display: grid; gap: .7rem; }
.why-list li { display: flex; align-items: flex-start; gap: .7rem; color: var(--slate-2); font-weight: 500; }
.why-ic {
  flex: none; width: 24px; height: 24px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: .8rem; font-weight: 800; margin-top: 2px;
}
.why-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.stat {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.3rem 1rem; text-align: center; box-shadow: var(--shadow-sm);
}
.stat strong { display: block; font-size: 1.5rem; color: var(--accent); font-weight: 800; }
.stat span { color: var(--muted); font-size: .9rem; }

/* ====== Zone ====== */
.zone-inner { display: flex; gap: 1.8rem; align-items: center; flex-wrap: wrap; }
.zone-icon { flex: none; }
.zone-addr { color: var(--slate); }

/* ====== Contact ====== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; align-items: start; }
.contact-list { list-style: none; padding: 0; margin: 1.2rem 0 0; display: grid; gap: .9rem; }
.contact-list li { display: flex; align-items: center; gap: .8rem; color: var(--slate-2); }
.contact-ic { flex: none; font-size: 1.1rem; width: 1.6rem; text-align: center; }
.contact-list a { color: var(--accent); font-weight: 700; }

.contact-form {
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.8rem; box-shadow: var(--shadow);
}
.field { margin-bottom: 1rem; }
.field label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: .35rem; color: var(--slate); }
.field input, .field textarea {
  width: 100%; padding: .75rem .9rem;
  border: 1px solid var(--line); border-radius: 10px;
  font: inherit; color: var(--ink); background: #fcfaf6;
  transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200, 85, 31, .15);
}
.field textarea { resize: vertical; }
.form-success {
  margin: 1rem 0 0; padding: .8rem 1rem; border-radius: 10px;
  background: #e8f3ea; color: #1f6b34; font-weight: 600; font-size: .95rem;
  border: 1px solid #bfe2c7;
}

/* ====== Footer ====== */
.site-footer { background: var(--slate); color: #d3d8de; }
.footer-inner {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 1.5rem;
  padding: 2.5rem 0; align-items: start;
}
.footer-brand strong { color: #fff; font-size: 1.1rem; }
.footer-brand p { color: #aeb5be; font-size: .92rem; margin-top: .4rem; }
.footer-nav { display: flex; flex-direction: column; gap: .5rem; }
.footer-nav a:hover { color: var(--accent); }
.footer-contact { display: flex; flex-direction: column; gap: .4rem; }
.footer-contact .btn-tel { color: #fff; font-size: 1.05rem; }
.footer-contact .btn-tel:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); }
.footer-bottom .container {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem;
  padding: 1rem 0; font-size: .85rem; color: #9aa1aa;
}
.footer-credit { color: #c8551f; opacity: .85; }

/* ====== Reveal animation ====== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ====== Responsive ====== */
@media (max-width: 900px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .why-grid, .contact-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .burger { display: flex; }
  .nav {
    position: fixed; inset: 70px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: .5rem 6%;
    transform: translateY(-130%);
    transition: transform .3s var(--ease);
    box-shadow: var(--shadow);
  }
  .nav.open { transform: translateY(0); }
  .nav > a { padding: .85rem .2rem; border-bottom: 1px solid var(--line); }
  .nav .btn, .nav .nav-tel { margin-top: .4rem; text-align: center; border-bottom: 0; }
  .nav-cta { margin-bottom: .4rem; }
}

@media (max-width: 520px) {
  .cards { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .hero-actions .btn { flex: 1 1 auto; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn:hover, .card:hover { transform: none; }
}