/* ============================================================
   5 Stars Conciergerie — DA « Minimal clair & confiance »
   Style : exaggerated minimalism · warm white · sage accent
   Fonts auto-hébergées (RGPD) · vanilla CSS
   ============================================================ */

/* ===== Fonts ===== */
/* Fraunces — serif chaleureuse pour les titres (variable, poids 400→700, optical-sizing auto) */
@font-face{font-family:'Fraunces';src:url('../fonts/fraunces-var-latin.woff2') format('woff2');font-weight:400 700;font-display:swap;font-style:normal;
  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:'Fraunces';src:url('../fonts/fraunces-var-latin-ext.woff2') format('woff2');font-weight:400 700;font-display:swap;font-style:normal;
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;}
@font-face{font-family:'Inter';src:url('../fonts/inter-400.woff2') format('woff2');font-weight:400;font-display:swap;font-style:normal;}
@font-face{font-family:'Inter';src:url('../fonts/inter-500.woff2') format('woff2');font-weight:500;font-display:swap;font-style:normal;}

/* ===== Tokens ===== */
:root{
  --bg:#FAFAF7;        /* blanc chaud */
  --white:#FFFFFF;
  --soft:#EEF1EA;      /* tint sauge très pâle */
  --ink:#16181D;       /* texte / titres */
  --ink-soft:#3A3F47;  /* texte courant un peu plus doux */
  --muted:#6B7280;     /* texte secondaire (AA sur blanc) */
  --sage:#7B8A6F;      /* DÉCORATIF uniquement (filets, icônes, bordures) */
  --sage-deep:#4F5D46; /* TEXTE / CTA — AA (~7:1 sur blanc) */
  --sage-darker:#3E4937;
  --line:#E6E4DD;      /* filets / bordures */
  --line-strong:#D8D6CE;

  --font-display:'Fraunces',Georgia,'Times New Roman',serif;
  --font-body:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;

  /* échelle type (exaggerated minimalism : hero surdimensionné) */
  --step--1:.8rem;
  --step-0:1rem;
  --step-1:1.125rem;
  --step-2:1.4rem;
  --step-3:clamp(1.8rem,1.2rem + 2.4vw,2.6rem);
  --step-hero:clamp(2.6rem,1.6rem + 5vw,5.2rem);

  --r-sm:8px; --r-md:14px; --r-lg:22px;
  --maxw:1120px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ===== Reset / base ===== */
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:clip;scroll-padding-top:84px;}
body{
  font-family:var(--font-body);
  font-size:var(--step-0);
  line-height:1.65;
  color:var(--ink-soft);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.08;letter-spacing:-.012em;color:var(--ink);font-weight:700;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
button{font-family:inherit;}
::selection{background:var(--sage);color:#fff;}
:focus-visible{outline:2px solid var(--sage-deep);outline-offset:3px;border-radius:3px;}

.container{max-width:var(--maxw);margin:0 auto;padding:0 2.2rem;}
section{padding:6.5rem 0;}
.eyebrow{
  display:inline-block;font-family:var(--font-body);font-size:var(--step--1);font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:var(--sage-deep);margin-bottom:1rem;
}
.eyebrow::before{content:'';display:inline-block;width:22px;height:1px;background:var(--sage);
  vertical-align:middle;margin-right:.7rem;margin-bottom:.18em;}
.section-title{font-size:var(--step-3);margin-bottom:1.1rem;max-width:18ch;}
.section-intro{color:var(--muted);max-width:54ch;margin-bottom:3rem;font-size:var(--step-1);}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.4rem;
  font-family:var(--font-body);font-weight:600;font-size:var(--step--1);letter-spacing:.01em;
  padding:.85rem 1.5rem;border-radius:var(--r-sm);border:1px solid transparent;
  cursor:pointer;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn--sage{background:var(--sage-deep);color:#fff;}
.btn--sage:hover{background:var(--sage-darker);}
.btn--ghost{border-color:var(--line-strong);color:var(--ink);background:transparent;}
.btn--ghost:hover{border-color:var(--sage-deep);color:var(--sage-deep);}

/* ===== Nav ===== */
nav[data-nav]{
  position:fixed;top:0;left:0;right:0;z-index:100;
  border-bottom:1px solid transparent;transition:background .3s var(--ease),border-color .3s var(--ease);
}
nav[data-nav].is-solid{background:color-mix(in srgb,var(--bg) 88%,transparent);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom-color:var(--line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px;}
.logo{font-family:var(--font-display);font-weight:700;font-size:1.02rem;letter-spacing:-.01em;color:#fff;
  transition:color .3s var(--ease);}
.is-solid .logo{color:var(--ink);}
.logo b{color:var(--sage);font-weight:700;}
.nav-links{display:flex;align-items:center;gap:2.2rem;}
.nav-links a{font-size:var(--step--1);font-weight:500;color:#ffffffcc;letter-spacing:.01em;transition:color .2s var(--ease);}
.is-solid .nav-links a{color:var(--muted);}
.nav-links a:hover{color:#fff;}
.is-solid .nav-links a:hover{color:var(--ink);}
.nav-links a.btn--sage{color:#fff;}
.is-solid .nav-links a.btn--sage{color:#fff;}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:.4rem;}
.burger span{display:block;width:23px;height:2px;background:#fff;border-radius:2px;transition:background .3s var(--ease);}
.is-solid .burger span{background:var(--ink);}
.mob-menu{display:none;flex-direction:column;gap:.4rem;padding:.5rem 2.2rem 1.4rem;
  background:var(--bg);border-bottom:1px solid var(--line);}
.mob-menu.open{display:flex;}
.mob-menu a{padding:.7rem 0;color:var(--ink-soft);font-weight:500;border-bottom:1px solid var(--line);}
.mob-menu a:last-child{border-bottom:none;}

/* ===== Trust strip ===== */
.trust{background:var(--soft);border-block:1px solid var(--line);}
.trust-inner{display:flex;flex-wrap:wrap;justify-content:center;gap:0;padding:1.3rem 0;}
.trust-inner span{position:relative;padding:.2rem 2rem;font-size:var(--step--1);font-weight:500;
  letter-spacing:.04em;color:var(--ink);text-transform:uppercase;}
.trust-inner span::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--sage);}
.trust-inner span:first-child::before{display:none;}

/* ===== Services ===== */
#services{background:var(--bg);}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem;}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);padding:2rem 1.8rem;
  transition:border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.card:hover{border-color:var(--sage);transform:translateY(-4px);box-shadow:0 18px 40px -24px rgba(40,50,30,.35);}
.card-ic{width:34px;height:34px;margin-bottom:1.3rem;}
.card-ic svg{width:100%;height:100%;stroke:var(--sage-deep);stroke-width:1.5;fill:none;}
.card h3{font-size:var(--step-2);font-weight:600;margin-bottom:.5rem;letter-spacing:-.01em;}
.card p{font-size:var(--step-0);color:var(--muted);line-height:1.6;}
.card--wide{grid-column:span 1;}

/* ===== Process ===== */
#process{background:var(--white);border-block:1px solid var(--line);}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:2.2rem;position:relative;}
.step{position:relative;}
.step-num{
  width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);font-weight:700;font-size:1.1rem;color:var(--sage-deep);
  background:var(--soft);border:1px solid var(--sage);margin-bottom:1.4rem;
}
.step h3{font-size:var(--step-2);font-weight:600;margin-bottom:.55rem;}
.step p{color:var(--muted);font-size:var(--step-0);}
.step-tag{display:inline-block;margin-top:.9rem;font-size:var(--step--1);font-weight:500;letter-spacing:.04em;
  text-transform:uppercase;color:var(--sage-deep);border:1px solid var(--line-strong);border-radius:30px;padding:.25rem .85rem;}

/* ===== Pourquoi (bénéfices) ===== */
#pourquoi{background:var(--soft);}
.bens{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem;}
.ben{background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);padding:1.9rem 1.6rem;}
.ben-num{font-family:var(--font-display);font-weight:700;font-size:1.1rem;color:var(--sage-deep);
  margin-bottom:1.1rem;display:flex;align-items:center;gap:.5rem;}
.ben-num::after{content:'';flex:1;height:1px;background:var(--line);}
.ben h3{font-size:var(--step-1);font-weight:600;margin-bottom:.5rem;line-height:1.25;}
.ben p{font-size:var(--step--1);color:var(--muted);line-height:1.6;}

/* ===== Ambiance ===== */
#ambiance{background:var(--bg);}
.ambiance-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:3.5rem;align-items:center;}
.ambiance-fig{position:relative;margin:0;}
.ambiance-fig img{width:100%;height:100%;object-fit:cover;border-radius:var(--r-lg);aspect-ratio:3/2;
  background:var(--soft);}
.ambiance-fig figcaption{position:absolute;left:1rem;bottom:1rem;font-size:.66rem;letter-spacing:.12em;
  text-transform:uppercase;color:#fff;background:#16181d99;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
  padding:.35rem .7rem;border-radius:30px;}
.ambiance-copy .section-title{max-width:16ch;}
.ambiance-copy p{color:var(--muted);font-size:var(--step-1);max-width:42ch;}

/* ===== Plateformes ===== */
.platforms{background:var(--white);border-block:1px solid var(--line);}
.platforms-inner{display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap;padding:2.6rem 0;}
.platforms-inner .lead p{font-size:var(--step--1);letter-spacing:.16em;text-transform:uppercase;color:var(--sage-deep);margin-bottom:.3rem;}
.platforms-inner .lead strong{font-family:var(--font-display);font-weight:600;font-size:var(--step-1);color:var(--ink);}
.plat-names{display:flex;align-items:center;gap:1.8rem;}
.plat-names span{font-family:var(--font-display);font-weight:600;font-size:1.1rem;color:var(--muted);}
.plat-sep{width:1px;height:20px;background:var(--line-strong);}

/* ===== Contact ===== */
#contact{background:var(--soft);}
.contact-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:4rem;align-items:start;}
.contact-tagline{font-family:var(--font-display);font-weight:700;font-size:var(--step-3);line-height:1.12;
  letter-spacing:-.01em;margin-bottom:1.8rem;max-width:14ch;}
.contact-tagline em{color:var(--sage-deep);font-style:normal;display:block;}
.contact-items{display:flex;flex-direction:column;gap:.4rem;margin-top:1.5rem;}
.c-item{display:flex;align-items:center;gap:.8rem;padding:.55rem 0;color:var(--ink);font-weight:500;
  font-size:var(--step-0);transition:color .2s var(--ease);}
a.c-item:hover{color:var(--sage-deep);}
.c-item svg{width:18px;height:18px;stroke:var(--sage-deep);stroke-width:1.7;fill:none;flex-shrink:0;}
.form{display:flex;flex-direction:column;gap:.85rem;background:var(--white);padding:2rem;border:1px solid var(--line);border-radius:var(--r-md);}
.form-2col{display:grid;grid-template-columns:1fr 1fr;gap:.85rem;}
.f-field{
  width:100%;background:var(--bg);border:1px solid var(--line-strong);border-radius:var(--r-sm);
  padding:.9rem 1.05rem;font-family:inherit;font-size:var(--step-0);color:var(--ink);transition:border-color .2s var(--ease);
}
.f-field::placeholder{color:#9aa0a6;}
.f-field:focus{outline:none;border-color:var(--sage-deep);}
textarea.f-field{min-height:120px;resize:vertical;}
.form-legal{font-size:var(--step--1);color:var(--muted);line-height:1.5;margin-top:.2rem;}
.form-legal a{color:var(--sage-deep);text-decoration:underline;text-underline-offset:2px;}
.form-success{display:none;background:var(--white);border:1px solid var(--sage);border-radius:var(--r-md);
  padding:2.2rem;text-align:center;color:var(--ink);}
.form-success strong{display:block;font-family:var(--font-display);font-size:var(--step-2);color:var(--sage-deep);margin-bottom:.4rem;}

/* ===== Footer ===== */
footer{background:var(--bg);border-top:1px solid var(--line);}
.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;
  padding:2rem 0;font-size:var(--step--1);color:var(--muted);}
.footer-inner .logo{color:var(--ink);}
.footer-inner a:hover{color:var(--sage-deep);}

/* ============================================================
   HERO (walkthrough scrubé) — Task 6
   ============================================================ */
.hero{position:relative;height:260vh;background:var(--ink);}
/* poster en fond : évite tout flash noir avant le dessin de la frame 0 (le canvas le recouvre ensuite) */
.hero__sticky{position:sticky;top:0;height:100vh;overflow:hidden;
  background:var(--ink) url('../media/hero-poster.webp') center/cover no-repeat;}
.hero__canvas,.hero__poster{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.hero__poster{display:none;}
.hero__scrim{position:absolute;inset:0;
  background:linear-gradient(95deg,#0c0e08e6 0%,#0c0e0899 38%,#0c0e0826 66%,transparent 84%);}
.hero__overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;
  color:#fff;will-change:opacity,transform;
  text-shadow:0 1px 24px rgba(8,10,6,.45),0 1px 3px rgba(8,10,6,.35);}
.hero__overlay .eyebrow{color:#d7e0cb;}
.hero__overlay .eyebrow::before{background:#aebd9c;}
.hero__overlay h1{color:#fff;font-size:var(--step-hero);max-width:15ch;margin-bottom:1.3rem;}
.hero__overlay h1 span{color:#d8e2cc;display:block;}
.hero__sub{color:#eef1ea;opacity:.92;font-size:var(--step-1);max-width:46ch;margin-bottom:2rem;}
.hero__cta{display:flex;gap:.8rem;flex-wrap:wrap;}
.hero__cta .btn--ghost{border-color:#ffffff66;color:#fff;}
.hero__cta .btn--ghost:hover{border-color:#fff;color:#fff;background:#ffffff14;}
.hero__cue{position:absolute;bottom:1.6rem;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:.5rem;
  font-size:var(--step--1);letter-spacing:.2em;text-transform:uppercase;color:#ffffffaa;}
.hero__cue::after{content:'';width:1px;height:26px;background:#ffffff66;animation:cue 1.8s var(--ease) infinite;}
@keyframes cue{0%,100%{opacity:.3;transform:scaleY(.6)}50%{opacity:1;transform:scaleY(1)}}
/* reveal piloté par --progress (le texte s'estompe en fin de hero) */
.hero__overlay{opacity:clamp(0,calc(1 - (var(--progress,0) - .72) * 4),1);}
/* Fallback : pas de scrub → poster fixe, hero d'un écran */
.hero.is-static{height:auto;}
.hero.is-static .hero__sticky{position:relative;height:auto;min-height:90vh;}
.hero.is-static .hero__canvas{display:none;}
.hero.is-static .hero__poster{display:block;}
.hero.is-static .hero__overlay{opacity:1;padding-block:6rem;}
.hero.is-static .hero__cue{display:none;}

/* ============================================================
   MICRO-INTERACTIONS & REVEAL AU SCROLL (progressif, reduced-motion safe)
   ============================================================ */
/* lift discret des boutons */
.btn:hover{transform:translateY(-1px);}
.btn--sage:hover{box-shadow:0 12px 26px -14px rgba(79,93,70,.65);}
.btn:active{transform:translateY(0);}

/* soulignement animé des liens de nav (hors CTA) */
.nav-links a:not(.btn){position:relative;}
.nav-links a:not(.btn)::after{content:'';position:absolute;left:0;right:100%;bottom:-5px;height:1px;
  background:currentColor;opacity:.7;transition:right .28s var(--ease);}
.nav-links a:not(.btn):hover::after{right:0;}

/* reveal forcé partout (choix client) — appliqué quel que soit le réglage OS */
/* reveal générique : fade + montée, délai en cascade via --i (posé en JS) */
.reveal{opacity:0;transform:translateY(18px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);transition-delay:calc(var(--i,0)*70ms);}
.reveal.in{opacity:1;transform:none;}
/* image ambiance : wipe clip-path en plus du fade */
.ambiance-fig.reveal img{clip-path:inset(0 100% 0 0);transition:clip-path .9s var(--ease) .05s;}
.ambiance-fig.reveal.in img{clip-path:inset(0 0 0 0);}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:980px){
  .cards{grid-template-columns:repeat(2,1fr);}
  .bens{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:860px){
  .nav-links{display:none;}
  .burger{display:flex;}
  section{padding:4.5rem 0;}
  .steps{grid-template-columns:1fr;gap:1.6rem;}
  .ambiance-inner{grid-template-columns:1fr;gap:2.2rem;}
  .contact-grid{grid-template-columns:1fr;gap:2.5rem;}
  .platforms-inner{justify-content:flex-start;}
}
@media(max-width:560px){
  .container{padding:0 1.4rem;}
  .cards{grid-template-columns:1fr;}
  .bens{grid-template-columns:1fr;}
  .form-2col{grid-template-columns:1fr;}
  .trust-inner span{padding:.3rem 1rem;}
  .trust-inner span::before{display:none;}
  .hero__cta{flex-direction:column;align-items:stretch;}
  .hero__cta .btn{width:100%;}
}

/* Note : choix client — les animations sont jouées même si l'OS demande de les
   réduire (sinon hero + reveals invisibles sur la plupart des postes Windows).
   On n'applique donc plus de neutralisation globale sous prefers-reduced-motion. */