/* ==========================================================================
   GK MENUISERIE — Design tokens & base (v3 — atelier d'artisan premium)
   ========================================================================== */

:root{
  /* Color — tons naturels et sourds */
  --bg:            #F6F2E9;   /* beige/écru clair */
  --bg-alt:        #EEE8D9;   /* écru un peu plus soutenu, pour alterner */
  --card:          #FDFBF5;   /* blanc cassé */
  --ink:           #221E19;   /* texte principal — brun très foncé */
  --ink-soft:      #4A443B;   /* texte secondaire */
  --muted:         #8C8474;   /* texte tertiaire, discret */
  --brass:         #566955;   /* accent — vert sauge profond */
  --brass-deep:    #3F4E3F;   /* sauge plus soutenu, hover / contraste */
  --line:          #E1D9C6;   /* filets, séparateurs */
  --overlay:       rgba(20,18,13,0.55);

  /* Type */
  --font-display: "Cormorant Garamond", "Georgia", serif;
  --font-body:    "Work Sans", "Helvetica Neue", Arial, sans-serif;

  /* Scale */
  --gutter: clamp(1.5rem, 5vw, 5.5rem);
  --radius: 1px;
}

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

html{ scroll-behavior: smooth; }

@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;
    scroll-behavior: auto !important;
  }
}

body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
ul{ list-style: none; margin: 0; padding: 0; }

h1, h2, h3, h4{
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--ink);
  letter-spacing: 0.01em;
}

h1{ font-size: clamp(2.6rem, 6vw, 5.4rem); font-weight: 400; }
h2{ font-size: clamp(2rem, 4vw, 3.1rem); font-weight: 400; }
h3{ font-size: clamp(1.3rem, 2vw, 1.7rem); font-weight: 500; }

p{ margin: 0 0 1em; color: var(--ink-soft); max-width: 58ch; font-weight: 300; }

.eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--brass-deep);
  margin-bottom: 1.4em;
}
.eyebrow::before{
  content: "";
  width: 30px;
  height: 1px;
  background: var(--brass);
  transform-origin: left;
}

.container{
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

section{ padding: clamp(6rem, 11vw, 10rem) 0; }

/* ---------- Buttons / liens discrets ----------
   Pas de gros boutons colorés : texte souligné fin, avec flèche. */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  border: none;
  border-bottom: 1px solid var(--ink);
  padding: 0 0 0.35em;
  background: none;
  cursor: pointer;
  transition: color .35s ease, border-color .35s ease, gap .35s ease;
}
.btn::after{
  content: "→";
  transition: transform .35s ease;
}
.btn:hover, .btn:focus-visible{
  color: var(--brass-deep);
  border-color: var(--brass-deep);
}
.btn:hover::after{ transform: translateX(4px); }
.btn-solid{
  color: var(--brass-deep);
  border-color: var(--brass-deep);
}
.btn-solid:hover, .btn-solid:focus-visible{
  color: var(--ink);
  border-color: var(--ink);
}
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--brass);
  outline-offset: 3px;
}

/* ---------- Header / Nav ---------- */
.site-header{
  position: sticky;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.3rem var(--gutter);
  background: rgba(246,242,233,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease;
}
.site-header.is-scrolled{ border-bottom-color: var(--line); }
.brand{ display: flex; align-items: center; gap: 0.7rem; }
.brand img{ height: 42px; width: auto; border-radius: 3px; }

.nav-links{ display: flex; gap: 2.6rem; align-items: center; }
.nav-links a{
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  position: relative;
  padding-bottom: 6px;
}
.nav-links a::after{
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0;
  height: 1px;
  background: var(--brass-deep);
  transition: width .3s ease;
}
.nav-links a:hover::after, .nav-links a.is-active::after{ width: 100%; }
.nav-links a.is-active{ color: var(--ink); }

.header-right{ display: flex; align-items: center; gap: 1.8rem; }
.header-phone{
  display: none;
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}
@media (min-width: 861px){ .header-phone{ display: inline; } }
.nav-cta{ display: none; }
@media (min-width: 861px){ .nav-cta{ display: inline-flex; } }

.nav-toggle{ display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span{ width: 22px; height: 1px; background: var(--ink); transition: transform .3s ease, opacity .3s ease; }

@media (max-width: 860px){
  .nav-links{
    position: fixed; inset: 0 0 0 22%;
    flex-direction: column; justify-content: center; align-items: flex-start;
    padding-left: 2.5rem; background: var(--bg); border-left: 1px solid var(--line);
    transform: translateX(100%); transition: transform .4s ease;
  }
  .nav-links a{ font-size: 1.1rem; }
  .nav-links.is-open{ transform: translateX(0); }
  .nav-toggle{ display: flex; }
  body.nav-open{ overflow: hidden; }
}

/* ---------- Reveal on scroll ----------
   Contenu visible par défaut (repli sûr si JS échoue). JS "arme"
   ensuite chaque section pour un fondu-glissement lent, avec un
   filet sauge qui se dessine au-dessus des surtitres. */
.reveal{ position: relative; }
.reveal-content{ opacity: 1; transform: none; }
.reveal.js-armed .reveal-content{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1.1s cubic-bezier(.16,1,.3,1), transform 1.1s cubic-bezier(.16,1,.3,1);
}
.reveal.js-armed.is-in .reveal-content{ opacity: 1; transform: translateY(0); }
.reveal.js-armed .eyebrow::before{
  transform: scaleX(0);
  transition: transform .9s cubic-bezier(.16,1,.3,1) .3s;
}
.reveal.js-armed.is-in .eyebrow::before{ transform: scaleX(1); }

/* ---------- Footer ---------- */
.site-footer{ border-top: 1px solid var(--line); padding: 3rem 0 1.6rem; background: var(--bg-alt); }
.footer-grid{ display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 2.5rem; }
@media (max-width: 760px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
.footer-grid h4{
  font-family: var(--font-body); font-size: 0.72rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--brass-deep); margin-bottom: 1.1em;
}
.footer-grid ul li{ margin-bottom: 0.7em; }
.footer-grid ul a{ color: var(--muted); font-size: 0.9rem; }
.footer-grid ul a:hover{ color: var(--ink); }
.footer-social{ display: flex; gap: 1rem; margin-top: 1.2rem; }
.footer-social a{
  width: 32px; height: 32px; border: 1px solid var(--line); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; color: var(--ink-soft);
  transition: border-color .3s ease, color .3s ease;
}
.footer-social a:hover{ border-color: var(--brass-deep); color: var(--brass-deep); }
.footer-social svg{ width: 15px; height: 15px; stroke: currentColor; fill: none; stroke-width: 1.4; }
.footer-bottom{
  margin-top: 3.5rem; padding-top: 1.6rem; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  font-size: 0.78rem; color: var(--muted);
}

/* ---------- Quadrillage animé en fond ----------
   Trait fin, couleur sauge très diluée, dérive doucement au scroll. */
.grid-overlay{
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(to right, rgba(63,78,63,0.16) 0, rgba(63,78,63,0.16) 1px, transparent 1px, transparent 88px),
    repeating-linear-gradient(to bottom, rgba(63,78,63,0.16) 0, rgba(63,78,63,0.16) 1px, transparent 1px, transparent 88px);
  background-position: 0 0;
  will-change: background-position;
}
@media (max-width: 700px){
  .grid-overlay{
    background-image:
      repeating-linear-gradient(to right, rgba(63,78,63,0.13) 0, rgba(63,78,63,0.13) 1px, transparent 1px, transparent 56px),
      repeating-linear-gradient(to bottom, rgba(63,78,63,0.13) 0, rgba(63,78,63,0.13) 1px, transparent 1px, transparent 56px);
  }
}

/* ---------- Bouton flottant circulaire ---------- */
.floating-cta{
  position: fixed;
  right: clamp(1.2rem, 3vw, 2.4rem);
  bottom: clamp(1.2rem, 3vw, 2.4rem);
  z-index: 90;
  width: 82px;
  height: 82px;
  border-radius: 50%;
  background: var(--ink);
  color: #FDFBF5;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.25;
  padding: 0.4rem;
  border: 1px solid var(--brass);
  box-shadow: 0 8px 24px rgba(20,17,12,0.22);
  opacity: 0;
  transform: translateY(16px) scale(0.9);
  transition: opacity .5s ease, transform .5s ease, background .3s ease;
}
.floating-cta.is-visible{ opacity: 1; transform: translateY(0) scale(1); }
.floating-cta:hover{ background: var(--brass-deep); }
@media (max-width: 640px){
  .floating-cta{ width: 66px; height: 66px; font-size: 0.56rem; }
}
.icon{ width: 34px; height: 34px; stroke: var(--brass-deep); fill: none; stroke-width: 1.1; }

/* ---------- Scroll cue ---------- */
.scroll-cue{
  position: absolute; bottom: 2.6rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.7rem;
  font-size: 0.66rem; letter-spacing: 0.28em; text-transform: uppercase; color: rgba(253,251,245,0.85);
}
.scroll-cue .line{ width: 1px; height: 34px; background: rgba(253,251,245,0.5); position: relative; overflow: hidden; }
.scroll-cue .line::after{
  content: ""; position: absolute; top: -100%; left: 0; width: 100%; height: 100%;
  background: #FDFBF5; animation: cue-drop 2.4s ease-in-out infinite;
}
@keyframes cue-drop{ 0%{ top: -100%; } 60%,100%{ top: 100%; } }

/* ==========================================================================
   Hero — plein écran, une phrase, un seul CTA
   ========================================================================== */
.hero{
  position: relative; min-height: 100svh; display: flex; align-items: flex-end;
  overflow: hidden; background: var(--ink);
}
.hero-media{ position: absolute; inset: 0; }
.hero-media img{
  width: 100%; height: 100%; object-fit: cover;
  -webkit-mask-image: radial-gradient(ellipse 115% 100% at center, black 72%, transparent 100%);
  mask-image: radial-gradient(ellipse 115% 100% at center, black 72%, transparent 100%);
}
.hero-media img.parallax-img{ transform: scale(1.22); will-change: transform; }
.hero-media::after{
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(15,13,9,.78) 0%, rgba(15,13,9,.28) 48%, rgba(15,13,9,.08) 72%);
}
.hero-inner{
  position: relative; z-index: 2; width: 100%; padding: 0 0 clamp(4rem, 9vw, 7rem);
  text-align: center; display: flex; flex-direction: column; align-items: center;
  will-change: transform, opacity;
}
.hero-inner .eyebrow{ color: #D9D2BF; justify-content: center; }
.hero-inner .eyebrow::before{ background: #A9BBA6; }
.hero h1{ color: #FDFBF5; margin-bottom: 0.5em; max-width: 15ch; font-weight: 400; margin-left: auto; margin-right: auto; }
.hero h1 em{ font-style: italic; color: #B9C7B4; }
.hero-lead{ color: rgba(253,251,245,0.82); font-size: 1.08rem; max-width: 44ch; font-weight: 300; margin-left: auto; margin-right: auto; }
.hero-actions{ display: flex; gap: 2rem; flex-wrap: wrap; margin-top: 2.2rem; justify-content: center; }
.hero .btn{ color: #FDFBF5; border-color: rgba(253,251,245,0.6); }
.hero .btn:hover{ color: #B9C7B4; border-color: #B9C7B4; }

/* ==========================================================================
   Section variants
   ========================================================================== */
.section-alt{ background: var(--bg-alt); }

.two-col{
  display: grid; grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(3rem, 7vw, 7rem); align-items: center;
}
@media (max-width: 900px){ .two-col{ grid-template-columns: 1fr; } }

.media-block{
  position: relative; background: var(--bg-alt); border: 1px solid var(--line);
  aspect-ratio: var(--ratio, 4/3); display: flex; align-items: flex-end; overflow: hidden;
}
.media-block img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:1; }
.media-block img.parallax-img{ transform: scale(1.3); will-change: transform; }
.media-block .placeholder-label{
  position: relative; z-index: 2; width: 100%; padding: 1rem 1.2rem;
  font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase; color: #FDFBF5;
  background: linear-gradient(to top, rgba(15,13,9,.72), transparent);
}

/* ---------- Matières & finitions (2 photos) ---------- */
.duo-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 1.75rem; margin-top: 3.5rem; }
@media (max-width: 700px){ .duo-grid{ grid-template-columns: 1fr; } }
.duo-grid .media-block{ --ratio: 3/4; }

/* ---------- Présentation courte (une idée forte) ---------- */
.statement{ max-width: 68ch; }
.statement p{ font-size: 1.15rem; }

/* ---------- Créations : grille de 3 avec légendes ---------- */
.creations-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; margin-top: 3.5rem; }
@media (max-width: 860px){ .creations-grid{ grid-template-columns: 1fr; } }
.creation-card figure{ margin: 0; }
.creation-card .media-block{ --ratio: 4/5; margin-bottom: 1.1rem; }
.creation-card h3{ font-size: 1.2rem; margin-bottom: 0.3em; }
.creation-card p{ font-size: 0.9rem; margin: 0; }

/* ---------- Process (accompagnement) ---------- */
.process-list{ margin-top: 3.5rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 3rem; }
@media (max-width: 860px){ .process-list{ grid-template-columns: 1fr; gap: 2.5rem; } }
.process-step .step-no{
  font-family: var(--font-display); font-style: italic; font-size: 1.4rem; color: var(--brass);
  display: block; margin-bottom: 0.6em;
}
.process-step h3{ margin-bottom: 0.5em; }
.process-step p{ font-size: 0.94rem; margin: 0; }

/* ---------- CTA band final ---------- */
.cta-band{
  text-align: center; padding: clamp(4rem,7vw,6rem) 0;
  background: var(--ink); color: #FDFBF5;
}
.cta-band .eyebrow{ color: #A9BBA6; justify-content: center; }
.cta-band .eyebrow::before{ background: #A9BBA6; }
.cta-band h2{ color: #FDFBF5; margin-bottom: 0.6rem; font-style: italic; }
.cta-band p{ margin: 0 auto 2.2rem; color: rgba(253,251,245,0.72); }
.cta-band .hero-actions{ justify-content: center; }
.cta-band .btn{ color: #FDFBF5; border-color: rgba(253,251,245,0.5); }
.cta-band .btn:hover{ color: #B9C7B4; border-color: #B9C7B4; }

/* ==========================================================================
   Services page
   ========================================================================== */
.services-nav{ display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 2.4rem; padding-bottom: 2.4rem; border-bottom: 1px solid var(--line); }
.services-nav a{ font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; padding: 0.6em 1.2em; border: 1px solid var(--line); color: var(--muted); }
.services-nav a:hover{ border-color: var(--brass); color: var(--ink); }

.service-category{ padding: clamp(4rem,7vw,6rem) 0; border-bottom: 1px solid var(--line); scroll-margin-top: 6.5rem; }
.service-category-head{ display: flex; align-items: baseline; gap: 1.3rem; margin-bottom: 2.8rem; }
.service-category-head .cat-no{ font-family: var(--font-display); font-style: italic; font-size: 1.1rem; color: var(--brass); }
.service-cards{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
@media (max-width: 960px){ .service-cards{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 620px){ .service-cards{ grid-template-columns: 1fr; } }

.service-card{
  border: 1px solid var(--line); background: var(--card); padding: 2.3rem 1.8rem;
  transition: border-color .4s ease, transform .4s ease;
}
.service-card:hover{ border-color: var(--brass); transform: translateY(-3px); }
.service-card .icon{ margin-bottom: 1.5rem; }
.service-card h3{ font-size: 1.15rem; margin-bottom: 0.5em; }
.service-card p{ font-size: 0.88rem; margin: 0; }

/* ==========================================================================
   Gallery / Réalisations page
   ========================================================================== */
.gallery-filters{ display: flex; gap: 0.75rem; flex-wrap: wrap; margin: 2.4rem 0 3.5rem; }
.gallery-filters button{
  font-family: var(--font-body); font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.6em 1.3em; border: 1px solid var(--line); background: transparent; color: var(--muted);
  cursor: pointer; transition: all .3s ease;
}
.gallery-filters button:hover, .gallery-filters button.is-active{ border-color: var(--brass); color: var(--ink); }
.gallery-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
@media (max-width: 900px){ .gallery-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 560px){ .gallery-grid{ grid-template-columns: 1fr; } }
.gallery-item{ --ratio: 4/3; cursor: pointer; }
.gallery-item:nth-child(3n+2){ --ratio: 3/4; }

.lightbox{
  position: fixed; inset: 0; z-index: 200; background: rgba(15,13,9,.95);
  display: none; align-items: center; justify-content: center; padding: 3rem;
}
.lightbox.is-open{ display: flex; }
.lightbox img{ max-width: 90vw; max-height: 80vh; object-fit: contain; border: 1px solid rgba(255,255,255,0.12); }
.lightbox-close{
  position: absolute; top: 1.5rem; right: 1.5rem; background: none;
  border: 1px solid rgba(255,255,255,0.3); color: #FDFBF5; width: 44px; height: 44px;
  cursor: pointer; font-size: 1.2rem;
}

/* ==========================================================================
   Contact page
   ========================================================================== */
.contact-grid{ display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(2.5rem, 6vw, 5rem); }
@media (max-width: 900px){ .contact-grid{ grid-template-columns: 1fr; } }

.contact-info-item{ display: flex; gap: 1.1rem; padding: 1.5rem 0; border-bottom: 1px solid var(--line); }
.contact-info-item .icon{ flex-shrink: 0; width: 26px; height: 26px; }
.contact-info-item h4{ font-family: var(--font-body); font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--brass-deep); margin-bottom: 0.4em; }
.contact-info-item p{ margin: 0; color: var(--ink); font-size: 0.96rem; }

.zone-list{ margin-top: 1.6rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.zone-list li{ font-size: 0.76rem; letter-spacing: 0.04em; padding: 0.45em 0.9em; border: 1px solid var(--line); color: var(--muted); }

.form-field{ margin-bottom: 1.5rem; }
.form-field label{ display: block; font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin-bottom: 0.7em; }
.form-row{ display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
@media (max-width: 560px){ .form-row{ grid-template-columns: 1fr; } }
.form-field input, .form-field select, .form-field textarea{
  width: 100%; background: var(--card); border: 1px solid var(--line); color: var(--ink);
  padding: 0.85em 1em; font-family: var(--font-body); font-size: 0.95rem; border-radius: var(--radius);
}
.form-field textarea{ resize: vertical; min-height: 120px; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus{ border-color: var(--brass); outline: none; }
.form-note{ font-size: 0.78rem; color: var(--muted); margin-top: 1rem; }
.form-success{
  display: none; border: 1px solid var(--brass); padding: 1.3rem 1.5rem; margin-top: 1.3rem;
  font-size: 0.9rem; color: var(--brass-deep); background: var(--bg-alt);
}
.form-success.is-visible{ display: block; }

.map-frame{ border: 1px solid var(--line); filter: sepia(0.15) saturate(0.7) contrast(0.96); width: 100%; height: 320px; margin-top: 2.6rem; }

/* ==========================================================================
   Page header (services / gallery / contact)
   ========================================================================== */
.page-header{ padding: clamp(8rem, 13vw, 10.5rem) 0 3.5rem; border-bottom: 1px solid var(--line); }
.page-header p{ font-size: 1.08rem; }