/* =========================================================
   YR Marketing Groupe — styles.css
   Studio contemporain : blanc / noir / accent bleu franc.
   ========================================================= */

:root{
  --white: #ffffff;
  --ink: #0a0a0c;
  --ink-soft: #4b4d55;
  --ink-faint: #86888f;
  --line: #e4e4e7;
  --bg-alt: #f4f5f7;
  --accent: #1440ff;
  --accent-dark: #0d2fc7;
  --accent-tint: #eef1ff;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --container: 1200px;
  --container-narrow: 720px;
  --gutter: clamp(20px, 5vw, 64px);

  --dur-fast: 180ms;
  --dur-med: 420ms;
  --dur-slow: 700ms;
  --ease: cubic-bezier(.22,.61,.36,1);

  --radius: 14px;
}

/* Police auto-hébergée (fichier variable unique, poids 400 à 800) —
   aucune ressource tierce chargée, voir assets/fonts/. */
@font-face{
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url('assets/fonts/inter-variable-latin.woff2') format('woff2-variations'),
       url('assets/fonts/inter-variable-latin.woff2') format('woff2');
}

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

/* The [hidden] attribute must always win over component display rules
   (e.g. .btn sets display:inline-flex, which would otherwise tie with
   the UA [hidden] rule and be shown first due to source order). */
[hidden]{ display: none !important; }

html{
  overflow-x: hidden;
}

body{
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  width: 100%;
}

img{ max-width: 100%; display: block; }

h1,h2,h3{
  margin: 0;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
}

p{ margin: 0; }

a{ color: inherit; text-decoration: none; }

ul, ol{ margin: 0; padding: 0; list-style: none; }

button{
  font-family: inherit;
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
}

/* Focus visibility — always keep an equivalent to hover states for keyboard use */
a:focus-visible,
button:focus-visible,
input:focus-visible{
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link{
  position: absolute;
  left: 12px;
  top: -60px;
  background: var(--ink);
  color: var(--white);
  padding: 12px 18px;
  border-radius: 8px;
  z-index: 1000;
  transition: top var(--dur-fast) var(--ease);
}
.skip-link:focus{ top: 12px; }

/* =========================================================
   Layout helpers
   ========================================================= */
.section-inner{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.section-inner-narrow{ max-width: var(--container-narrow); }

.section{
  padding: clamp(64px, 10vw, 128px) 0;
}
.section-alt{
  background: var(--bg-alt);
}

.section-head{ max-width: 640px; margin-bottom: clamp(40px, 6vw, 72px); }

.eyebrow{
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.section-head h2{
  font-size: clamp(1.9rem, 3.6vw, 2.8rem);
  margin-bottom: 16px;
}

.section-lede{
  font-size: 1.08rem;
  color: var(--ink-soft);
  line-height: 1.6;
  max-width: 56ch;
}

/* =========================================================
   Buttons
   ========================================================= */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 1.5px solid transparent;
  transition: transform var(--dur-fast) var(--ease),
              background var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease),
              color var(--dur-fast) var(--ease);
  white-space: nowrap;
}
.btn:active{ transform: translateY(1px) scale(0.99); }

.btn-primary{
  background: var(--accent);
  color: var(--white);
}
.btn-primary:hover{ background: var(--accent-dark); transform: translateY(-2px); }

.btn-ghost{
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover{ border-color: var(--ink); transform: translateY(-2px); }

.btn-outline{
  background: var(--white);
  color: var(--ink);
  border-color: var(--line);
}
.btn-outline:hover{ border-color: var(--accent); color: var(--accent); }

.btn-lg{ padding: 16px 32px; font-size: 1.02rem; }

.btn-whatsapp{ border-color: #1440ff33; }

/* =========================================================
   Header / nav
   ========================================================= */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner{
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo{
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.logo-mark{
  background: var(--ink);
  color: var(--white);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}
.logo-word{ color: var(--ink); }

/* --- Nav: visible by default (no-JS fallback), enhanced when JS runs --- */
.site-nav{
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 40px);
}
.nav-links{
  display: flex;
  gap: clamp(14px, 2.4vw, 32px);
  flex-wrap: wrap;
}
.nav-links a{
  position: relative;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--ink-soft);
  padding: 4px 2px;
}
.nav-links a::after{
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 2px;
  background: var(--accent);
  transition: right var(--dur-med) var(--ease);
}
.nav-links a:hover,
.nav-links a:focus-visible{ color: var(--ink); }
.nav-links a:hover::after,
.nav-links a:focus-visible::after{ right: 0; }

.nav-cta{ flex-shrink: 0; }

.menu-toggle{
  display: none;
  align-items: center;
  gap: 10px;
  padding: 8px 6px;
}
.menu-toggle-label{ font-size: 0.85rem; font-weight: 600; }
.menu-icon{
  width: 22px; height: 16px;
  position: relative;
  display: inline-block;
}
.menu-icon span{
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease), top var(--dur-fast) var(--ease);
}
.menu-icon span:nth-child(1){ top: 0; }
.menu-icon span:nth-child(2){ top: 7px; }
.menu-icon span:nth-child(3){ top: 14px; }

@media (max-width: 860px){
  html.has-js .menu-toggle{ display: inline-flex; }
}

.nav-scrim{
  position: fixed;
  inset: 0;
  background: rgba(10,10,12,0.35);
  z-index: 90;
  opacity: 0;
  transition: opacity var(--dur-med) var(--ease);
}
.nav-scrim.is-visible{ opacity: 1; }

/* Mobile nav: only takes the fixed-panel shape once JS has enhanced it */
@media (max-width: 860px){
  html.has-js .site-nav{
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(86vw, 360px);
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 96px 28px 32px;
    gap: 28px;
    transform: translateX(100%);
    transition: transform var(--dur-med) var(--ease);
    z-index: 95;
    box-shadow: -8px 0 32px rgba(0,0,0,0.08);
  }
  html.has-js .site-nav.is-open{ transform: translateX(0); }
  html.has-js .nav-links{
    flex-direction: column;
    gap: 18px;
    width: 100%;
  }
  html.has-js .nav-links a{ font-size: 1.15rem; }
  html.has-js .nav-cta{ width: 100%; }

  /* No-JS fallback: nav becomes a simple stacked block under the header */
  .site-nav:not(html.has-js *){ flex-direction: column; align-items: flex-start; }
}

/* =========================================================
   Hero
   ========================================================= */
.hero{
  padding: clamp(28px, 5vw, 56px) 0 clamp(48px, 7vw, 88px);
}
.hero-grid{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: clamp(32px, 5vw, 64px);
}

.hero-title{
  font-size: clamp(2rem, 4vw, 3.4rem);
}
.hero-title .line{
  display: block;
  overflow: hidden;
}
.hero-title .line-inner{
  display: block;
  transform: translateY(110%);
  opacity: 0;
  animation: line-in var(--dur-slow) var(--ease) forwards;
}
.hero-title .line:nth-child(1) .line-inner{ animation-delay: 80ms; }
.hero-title .line:nth-child(2) .line-inner{ animation-delay: 200ms; }

.accent-dot{ color: var(--accent); }

@keyframes line-in{
  to{ transform: translateY(0); opacity: 1; }
}

.hero-subtitle{
  margin-top: 28px;
  font-size: clamp(1.02rem, 1.6vw, 1.25rem);
  color: var(--ink-soft);
  max-width: 54ch;
  line-height: 1.6;
  opacity: 0;
  animation: fade-up var(--dur-slow) var(--ease) forwards;
  animation-delay: 460ms;
}

.hero-actions{
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  opacity: 0;
  animation: fade-up var(--dur-slow) var(--ease) forwards;
  animation-delay: 580ms;
}

@keyframes fade-up{
  from{ transform: translateY(14px); opacity: 0; }
  to{ transform: translateY(0); opacity: 1; }
}

.hero-media{
  position: relative;
  opacity: 0;
  animation: fade-up var(--dur-slow) var(--ease) forwards;
  animation-delay: 260ms;
}
.hero-media-frame{
  display: block;
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--ink);
}
.hero-media-frame img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease);
}
.hero-media-frame:hover img,
.hero-media-frame:focus-visible img{ transform: scale(1.03); }

.hero-media-tag{
  display: inline-block;
  margin-top: 14px;
  font-size: 0.86rem;
  color: var(--ink-soft);
}

/* =========================================================
   Scroll reveal (progressive enhancement — see script.js)
   Without JS, .reveal elements stay fully visible (no rule below applies).
   ========================================================= */
html.has-js .reveal{
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
html.has-js .reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   Projets visuels
   ========================================================= */
.project{
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}
.project + .project{
  margin-top: clamp(56px, 8vw, 104px);
}

.project-media{
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.project-media-main,
.project-media-thumb{
  display: block;
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink);
  aspect-ratio: 16 / 9;
}
.project-media-main img,
.project-media-thumb img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease);
}
.project-media-main:hover img,
.project-media-main:focus-visible img,
.project-media-thumb:hover img,
.project-media-thumb:focus-visible img{
  transform: scale(1.045);
}
.project-media-side{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.project-media-solo{ aspect-ratio: 16 / 9; }

.project-body h3{ font-size: 1.6rem; margin-bottom: 12px; }
.project-intent{
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: 20px;
}
.project-notes{ display: flex; flex-direction: column; gap: 10px; }
.project-notes li{
  position: relative;
  padding-left: 22px;
  font-size: 0.94rem;
  color: var(--ink);
  line-height: 1.5;
}
.project-notes li::before{
  content: "";
  position: absolute;
  left: 0; top: 8px;
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--accent);
}

/* =========================================================
   Lightbox (progressive enhancement — voir script.js)
   ========================================================= */
.lightbox{
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 4vw, 48px);
}
.lightbox-backdrop{
  position: absolute;
  inset: 0;
  background: rgba(8,8,10,0.86);
}
.lightbox-panel{
  position: relative;
  max-width: min(1200px, 100%);
  max-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: fade-up var(--dur-med) var(--ease);
}
.lightbox-img{
  max-width: 100%;
  max-height: calc(100vh - 140px);
  width: auto;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.4);
}
.lightbox-caption{
  margin-top: 14px;
  color: var(--white);
  font-size: 0.92rem;
  text-align: center;
}
.lightbox-close{
  position: absolute;
  top: -44px;
  right: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: background var(--dur-fast) var(--ease);
}
.lightbox-close:hover{ background: rgba(255,255,255,0.22); }

@media (max-width: 560px){
  .lightbox-close{ top: 8px; right: 8px; }
}

/* =========================================================
   Services / prestations
   ========================================================= */
.services-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(24px, 3vw, 40px);
}

.service-card{
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(28px, 3.4vw, 40px);
  transition: border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.service-card:hover{
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(20,64,255,0.08);
}

.service-number{
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 18px;
}
.service-card h3{ font-size: 1.5rem; margin-bottom: 12px; }
.service-desc{ color: var(--ink-soft); line-height: 1.6; margin-bottom: 22px; }

.service-list{ display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; }
.service-list li{
  position: relative;
  padding-left: 22px;
  font-size: 0.96rem;
  color: var(--ink);
  line-height: 1.5;
}
.service-list li::before{
  content: "";
  position: absolute;
  left: 0; top: 8px;
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--accent);
}

.service-link{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.96rem;
  color: var(--ink);
  position: relative;
}
.service-link::after{
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -3px;
  height: 2px;
  background: var(--accent);
  transition: right var(--dur-med) var(--ease);
}
.service-link:hover,
.service-link:focus-visible{ color: var(--accent); }
.service-link:hover::after,
.service-link:focus-visible::after{ right: 0; }
.link-arrow{ transition: transform var(--dur-fast) var(--ease); }
.service-link:hover .link-arrow,
.service-link:focus-visible .link-arrow{ transform: translateX(4px); }

/* =========================================================
   Méthode
   ========================================================= */
.method-list{
  display: flex;
  flex-direction: column;
}
.method-item{
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
}
.method-item:last-child{ border-bottom: 1px solid var(--line); }

.method-index{
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
}
.method-body h3{ font-size: 1.25rem; margin-bottom: 8px; }
.method-body p{ color: var(--ink-soft); line-height: 1.6; max-width: 58ch; }

/* =========================================================
   Contact
   ========================================================= */
.contact-box{
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(28px, 4vw, 48px);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
}

.contact-email-row{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  width: 100%;
}
.contact-email{
  font-size: 1.05rem;
  font-weight: 600;
  padding: 10px 16px;
  background: var(--bg-alt);
  border-radius: 8px;
  word-break: break-all;
}
.btn-copy[data-state="copied"]{
  border-color: var(--accent);
  color: var(--accent);
}

.copy-feedback{
  min-height: 1.2em;
  font-size: 0.9rem;
  color: var(--accent-dark);
}

/* =========================================================
   Pages légales
   ========================================================= */
.legal-page{ padding-top: clamp(48px, 8vw, 88px); }
.legal-page h1{
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin: 12px 0 clamp(32px, 5vw, 56px);
}
.legal-block{ margin-bottom: clamp(28px, 4vw, 40px); }
.legal-block h2{ font-size: 1.2rem; margin-bottom: 10px; }
.legal-block p{ color: var(--ink-soft); line-height: 1.7; }
.legal-block p + p{ margin-top: 10px; }
.legal-block a{ color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.legal-block a:hover,
.legal-block a:focus-visible{ color: var(--accent-dark); }

.legal-block-pending{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(20px, 3vw, 28px);
  background: var(--bg-alt);
}
.legal-block-pending h2{ font-size: 1.05rem; }
.legal-block-pending p{ color: var(--ink-soft); }

/* =========================================================
   Footer
   ========================================================= */
.site-footer{
  border-top: 1px solid var(--line);
  background: var(--bg-alt);
}
.footer-inner{
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px var(--gutter) 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.footer-brand{
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}
.footer-nav{
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-nav a{ color: var(--ink-soft); font-size: 0.94rem; position: relative; }
.footer-nav a::after{
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 1.5px;
  background: var(--ink);
  transition: right var(--dur-med) var(--ease);
}
.footer-nav a:hover,
.footer-nav a:focus-visible{ color: var(--ink); }
.footer-nav a:hover::after,
.footer-nav a:focus-visible::after{ right: 0; }

.footer-contact a{ font-weight: 600; color: var(--ink); }
.footer-contact a:hover{ color: var(--accent); }

.footer-legal{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter) 32px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 12px;
  color: var(--ink-faint);
  font-size: 0.82rem;
  line-height: 1.6;
}
.footer-legal-links{ display: inline-flex; gap: 8px; align-items: center; }
.footer-legal-links a{ color: var(--ink-faint); }
.footer-legal-links a:hover,
.footer-legal-links a:focus-visible{ color: var(--ink); }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 860px){
  .services-grid{ grid-template-columns: 1fr; }
  .method-item{ grid-template-columns: 56px 1fr; }

  .hero-grid{ grid-template-columns: 1fr; }
  .hero-media{ order: 2; }

  .project{ grid-template-columns: 1fr; }
  .project-media{ order: 1; }
  .project-body{ order: 2; }
}

@media (max-width: 560px){
  .header-inner{ padding: 14px var(--gutter); }
  .hero{ padding-top: 24px; }
  .btn-lg{ width: 100%; }
  .hero-actions{ flex-direction: column; }
  .hero-actions .btn{ width: 100%; }
  .contact-email-row{ flex-direction: column; align-items: stretch; }
  .contact-email{ text-align: center; }
  .btn-copy{ width: 100%; }
  .footer-inner{ flex-direction: column; align-items: flex-start; }
  .project-media-side{ grid-template-columns: 1fr 1fr; }
}

/* =========================================================
   Reduced motion — content appears directly, no decorative movement
   ========================================================= */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }

  .hero-title .line-inner,
  .hero-subtitle,
  .hero-actions,
  .hero-media{
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }

  html.has-js .reveal{
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .hero-media-frame:hover img,
  .hero-media-frame:focus-visible img,
  .project-media-main:hover img,
  .project-media-main:focus-visible img,
  .project-media-thumb:hover img,
  .project-media-thumb:focus-visible img,
  .service-card:hover,
  .btn:hover,
  .btn:active{
    transform: none !important;
  }

  *{
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}