/*
Portfolio - Inès Buisson
Chargée de communication
Thème : Violet & Pastel — créatif, doux et moderne
*/

/* ============ VARIABLES & RESET ============ */
:root{
  --bg:#FAFAFF;
  --surface:#FFFFFF;
  --primary:#6D28D9;
  --secondary:#C084FC;
  --accent:#F3E8FF;
  --ink:#1A1533;
  --text:#6B7280;
  --muted:rgba(107,114,128,.75);
  --line:#E2E8F0;
  --glow:rgba(124,58,237,.14);
  --glow-strong:rgba(124,58,237,.22);
  --serif:"Playfair Display", Georgia, "Times New Roman", serif;
  --sans:"Inter","Segoe UI",system-ui,-apple-system,sans-serif;
  --maxw:1180px;
  --radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 28px;border-radius:40px;font-weight:600;font-size:15px;
  cursor:pointer;border:1px solid transparent;transition:.2s ease;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--secondary);transform:translateY(-1px);box-shadow:0 10px 26px var(--glow-strong)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{background:var(--accent);border-color:var(--secondary)}
.btn-outline-dark{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-outline-dark:hover{background:var(--accent)}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:78px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand .logo{font-family:var(--serif);font-style:italic;font-size:26px;font-weight:600;color:var(--primary)}
.site-header .brand .logo{font-size:34px}
.brand .name{font-family:var(--serif);font-size:20px;font-weight:600}
.nav{display:flex;align-items:center;gap:30px}
.nav a{color:var(--text);font-size:15px;font-weight:500;transition:.2s}
.nav a:hover,.nav a.active{color:var(--primary)}
.nav-cta{margin-left:8px}
.nav a.nav-cta{color:#fff}
.nav a.nav-cta:hover{color:#fff}
.menu-toggle{display:none;background:none;border:0;color:var(--ink);font-size:26px;cursor:pointer}

/* ============ HERO ============ */
.hero{
  position:relative;color:var(--ink);overflow:hidden;
  background:
    radial-gradient(circle at 82% 15%, var(--accent) 0%, transparent 55%),
    radial-gradient(circle at 10% 90%, rgba(192,132,252,.25) 0%, transparent 45%),
    var(--bg);
}
.hero .container{position:relative;z-index:2;padding-top:70px;padding-bottom:70px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero-text-col{position:relative;z-index:5}
.hero-kicker{letter-spacing:.22em;font-size:13px;font-weight:600;color:var(--primary);text-transform:uppercase}
.hero h1{font-family:var(--serif);font-size:60px;line-height:1.05;font-weight:700;margin:16px 0 14px}
.hero-sub{font-size:19px;color:var(--text)}
.hero-sub .dot{color:var(--secondary);margin:0 6px}
.hero-rule{width:54px;height:3px;background:var(--primary);margin:26px 0}
.hero-quote{font-family:var(--serif);font-style:italic;font-size:24px;color:var(--ink);margin-bottom:18px}
.hero-quote em{color:var(--primary);font-style:italic}
.hero-text{color:var(--text);font-size:17px;max-width:460px;margin-bottom:30px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-photo{position:relative;border-radius:30% 6px 6px 6px/40% 6px 6px 6px;overflow:hidden;
  min-height:430px;background:var(--accent);border:1px solid var(--line)}
.hero-photo img{width:100%;height:100%;object-fit:cover;min-height:430px}
.hero-photo::before{content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(124,58,237,.18),transparent 55%);z-index:1}
.hero-photo .placeholder{display:flex;align-items:center;justify-content:center;height:100%;min-height:430px;
  color:var(--text);font-family:var(--serif);font-size:15px;text-align:center;padding:24px}

/* ============ PILLARS ============ */
.pillars{background:var(--surface);padding:56px 0}
.pillars .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.pillar{display:flex;gap:18px;padding:0 30px;position:relative}
.pillar+.pillar::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:var(--line)}
.pillar .ico{flex:0 0 56px;width:56px;height:56px;border-radius:50%;background:var(--accent);
  display:grid;place-items:center;color:var(--primary);font-size:22px}
.pillar h3{font-family:var(--serif);color:var(--ink);font-size:21px;margin-bottom:8px}
.pillar p{color:var(--text);font-size:14.5px}

/* ============ SECTION TITLES ============ */
.section-head{text-align:center;margin-bottom:44px}
.section-head .eyebrow{letter-spacing:.2em;font-size:13px;font-weight:700;color:var(--primary);text-transform:uppercase}
.section-head h2{font-family:var(--serif);font-size:34px;color:var(--ink);margin-top:10px}
.section-head .underline{width:60px;height:3px;background:var(--primary);margin:14px auto 0}

/* ============ EXPERTISE ============ */
.expertise{background:linear-gradient(180deg,var(--accent),var(--bg));padding:66px 0}
.expertise .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 26px;text-align:center;transition:.25s}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px var(--glow-strong);border-color:var(--secondary)}
.card .ico{width:64px;height:64px;border-radius:50%;background:var(--accent);
  display:grid;place-items:center;color:var(--primary);margin:0 auto 20px;font-size:24px}
.card h3{font-family:var(--serif);color:var(--ink);font-size:19px;margin-bottom:12px}
.card p{color:var(--text);font-size:14px}

/* ============ REALISATIONS ============ */
.work{background:var(--bg);padding:66px 0}
.portfolio-pole{margin-bottom:56px}
.portfolio-pole:last-child{margin-bottom:0}
.pole-title{display:flex;align-items:center;gap:14px;font-family:var(--serif);color:var(--ink);font-size:21px;margin-bottom:26px}
.pole-title::before{content:"";width:26px;height:3px;background:var(--primary);flex:0 0 auto}

/* -- Influence (vidéos) -- */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.video-card{display:block;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface);transition:.25s}
.video-card:hover{box-shadow:0 18px 40px var(--glow-strong);transform:translateY(-4px);border-color:var(--secondary)}
.video-thumb{position:relative;aspect-ratio:16/9;background:var(--accent);overflow:hidden}
.video-thumb img{width:100%;height:100%;object-fit:cover}
.video-thumb::after{content:"▶";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:30px;color:#fff;background:rgba(26,21,51,.4);opacity:0;transition:.2s}
.video-card:hover .video-thumb::after{opacity:1}
.video-body{padding:18px 20px 20px}
.video-body h4{font-family:var(--serif);font-weight:600;color:var(--ink);font-size:15.5px;line-height:1.4;margin-bottom:12px}
.video-views{color:var(--primary);font-weight:600;font-size:13.5px}

/* -- Réseaux sociaux -- */
.social-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.social-card{display:flex;flex-direction:column;gap:18px;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;background:var(--surface);transition:.25s;overflow:hidden}
.social-card:hover{box-shadow:0 18px 40px var(--glow-strong);transform:translateY(-4px);border-color:var(--secondary)}
.social-embed{border-radius:calc(var(--radius) - 6px);overflow:hidden;background:var(--accent)}
.social-embed iframe{width:100%;height:560px;display:block;border:0}
.social-stats{display:flex;gap:8px}
.social-stats .stat{flex:1;text-align:center}
.social-stats .stat strong{display:block;font-family:var(--serif);color:var(--primary);font-size:18px}
.social-stats .stat span{display:block;color:var(--muted);font-size:10.5px;margin-top:4px;text-transform:uppercase;letter-spacing:.03em}
.social-link{color:var(--primary);font-weight:600;font-size:14px;text-align:center;display:inline-flex;
  align-items:center;justify-content:center;gap:6px;transition:.2s}
.social-card:hover .social-link{gap:10px}

/* -- Posters (carrousel horizontal) -- */
.poster-carousel{position:relative;padding:0 8px}
.poster-rail{display:flex;gap:22px;overflow-x:auto;padding:8px 4px 12px;scroll-snap-type:x proximity;
  -webkit-overflow-scrolling:touch;scrollbar-width:none;-ms-overflow-style:none}
.poster-rail::-webkit-scrollbar{display:none}
.poster-item{flex:0 0 auto;width:240px;scroll-snap-align:center;display:block;cursor:zoom-in;
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface);
  transition:transform .3s,box-shadow .3s,border-color .3s}
.poster-item:hover{transform:translateY(-4px);box-shadow:0 18px 40px var(--glow-strong);border-color:var(--secondary)}
.poster-item.is-active{transform:scale(1.08);box-shadow:0 22px 48px var(--glow-strong);z-index:2;position:relative;border-color:var(--primary)}
.poster-item.is-active:hover{transform:scale(1.08) translateY(-4px)}
.poster-item img{width:100%;height:auto;aspect-ratio:900/637;object-fit:cover;display:block;background:var(--accent)}
.poster-caption{display:block;padding:12px 14px;color:var(--text);font-size:13.5px;font-weight:600;text-align:center}

/* -- Flèches de navigation -- */
.poster-nav{position:absolute;top:50%;translate:0 -50%;z-index:5;
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--surface);
  color:var(--ink);font-size:24px;line-height:1;display:flex;align-items:center;justify-content:center;
  cursor:pointer;box-shadow:0 8px 20px rgba(26,21,51,.12);transition:.2s}
.poster-nav:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.poster-nav.prev{left:-14px}
.poster-nav.next{right:-14px}

/* -- Points de navigation du carrousel -- */
.poster-dots{display:flex;justify-content:center;align-items:center;gap:10px;margin-top:22px}
.poster-dot{width:9px;height:9px;padding:0;border:0;border-radius:50%;background:var(--line);cursor:pointer;transition:.2s}
.poster-dot:hover{background:var(--secondary)}
.poster-dot.active{width:24px;border-radius:5px;background:var(--primary)}

/* -- Lightbox de prévisualisation -- */
.lightbox{position:fixed;inset:0;background:rgba(26,21,51,.85);display:flex;align-items:center;justify-content:center;
  padding:50px;z-index:200;opacity:0;pointer-events:none;transition:.2s}
.lightbox.open{opacity:1;pointer-events:auto}
.lightbox-close{position:absolute;top:22px;right:28px;background:none;border:0;color:#fff;font-size:34px;
  line-height:1;cursor:pointer}
.lightbox-content{display:flex;flex-direction:column;align-items:center;gap:18px;max-width:90vw;max-height:90vh}
.lightbox-content img{max-width:100%;max-height:78vh;border-radius:8px;box-shadow:0 30px 80px rgba(0,0,0,.4);background:var(--surface)}
.lightbox-open{color:#fff;font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px;
  border:1px solid rgba(255,255,255,.4);padding:10px 22px;border-radius:30px;transition:.2s}
.lightbox-open:hover{background:rgba(255,255,255,.15)}

/* ============ JOURNEY / TIMELINE ============ */
.journey{background:var(--surface);padding:66px 0}
.journey-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start;max-width:1080px;margin:0 auto}
.journey-col-title{font-family:var(--serif);color:var(--ink);font-size:19px;text-align:center;margin-bottom:32px}
.timeline{position:relative}
.timeline::before{content:"";position:absolute;left:90px;top:6px;bottom:6px;width:2px;background:var(--line)}
.t-item{display:grid;grid-template-columns:90px 1fr;gap:20px;padding:0 0 34px;position:relative}
.t-item:last-child{padding-bottom:0}
.t-date{font-weight:700;color:var(--primary);font-size:13.5px;text-align:right;padding-right:20px;padding-top:2px}
.t-body{position:relative;padding-left:20px}
.t-body::before{content:"";position:absolute;left:-7px;top:6px;width:14px;height:14px;border-radius:50%;
  background:var(--primary);border:3px solid var(--surface);box-shadow:0 0 0 2px var(--accent)}
.t-body h3{font-family:var(--serif);color:var(--ink);font-size:17.5px;margin-bottom:3px}
.t-org{display:block;color:var(--text);font-size:14px;font-weight:600;margin-bottom:8px}
.t-body ul{color:var(--text);font-size:14.5px}
.t-body ul li{position:relative;padding-left:16px;margin-bottom:4px}
.t-body ul li::before{content:"–";position:absolute;left:0;color:var(--primary)}

/* -- Projets de cours (photos) -- */
.cursus-projects{margin-top:36px;padding-left:20px}
.cursus-projects-title{font-family:var(--serif);color:var(--ink);font-size:15px;margin-bottom:14px}
.cursus-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.cursus-photo{border-radius:10px;overflow:hidden;aspect-ratio:700/991;background:var(--accent);
  cursor:zoom-in;transition:.2s;border:1px solid var(--line)}
.cursus-photo:hover{box-shadow:0 12px 28px var(--glow-strong);transform:translateY(-3px);border-color:var(--secondary)}
.cursus-photo img{width:100%;height:100%;object-fit:contain;display:block}
.cursus-caption{display:block;padding:8px 10px;color:var(--text);font-size:11.5px;font-weight:600;text-align:center}
.cursus-photo--cover img{object-fit:cover}

/* ============ CONTACT ============ */
.contact{background:var(--bg);padding:66px 0}
.contact-grid{max-width:820px;margin:0 auto;text-align:center}
.contact-list{display:flex;flex-direction:row;flex-wrap:wrap;justify-content:center;gap:28px;margin-top:30px}
.contact-item{display:flex;align-items:center;gap:12px;font-size:16px;color:var(--text)}
.contact-item .ico{width:40px;height:40px;border-radius:50%;background:var(--accent);
  display:grid;place-items:center;color:var(--primary);font-size:16px}
.contact-item a:hover{color:var(--primary)}

/* ============ FOOTER ============ */
.site-footer{background:var(--primary);color:rgba(255,255,255,.8);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.site-footer .brand{color:#fff;margin-bottom:16px}
.site-footer .brand .logo{color:#fff}
.site-footer .about{font-size:14px;max-width:280px}
.footer-col h4{color:#fff;font-size:13px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:16px}
.footer-col li{margin-bottom:9px;font-size:14.5px}
.footer-col a:hover{color:#fff}
.socials{display:flex;gap:12px;margin-bottom:18px}
.socials a{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.15);
  display:grid;place-items:center;color:#fff;transition:.2s;font-size:15px}
.socials a:hover{background:#fff;color:var(--primary)}
.contact-line{display:flex;align-items:center;gap:10px;font-size:14px;margin-bottom:8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.2);padding:18px 0;
  display:flex;justify-content:space-between;align-items:center;font-size:13px;color:rgba(255,255,255,.65)}
.footer-bottom a{margin-left:18px}
.footer-bottom a:hover{color:#fff}

/* ============ RESPONSIVE ============ */
@media(max-width:980px){
  .hero .container{grid-template-columns:1fr}
  .hero h1{font-size:46px}
  .hero-photo{order:-1;min-height:320px}
  .pillars .grid{grid-template-columns:1fr;gap:30px}
  .pillar+.pillar::before{display:none}
  .expertise .grid{grid-template-columns:repeat(2,1fr)}
  .video-grid,.social-grid,.photo-grid{grid-template-columns:1fr}
  .journey-grid{grid-template-columns:1fr;gap:44px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .nav{display:none;position:absolute;top:78px;left:0;right:0;background:var(--surface);
    border-bottom:1px solid var(--line);
    flex-direction:column;padding:20px;gap:18px}
  .nav.open{display:flex}
  .menu-toggle{display:block}
  .hero h1{font-size:36px}
  .expertise .grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:10px}
  .timeline::before{left:6px}
  .t-item{grid-template-columns:1fr;gap:6px}
  .t-date{text-align:left;padding-right:0;padding-left:30px}
  .t-body{padding-left:30px}
  .t-body::before{left:-1px}
  .poster-nav{width:36px;height:36px;font-size:20px}
  .poster-nav.prev{left:0}
  .poster-nav.next{right:0}
  .poster-item.is-active{transform:scale(1.04)}
  .poster-item.is-active:hover{transform:scale(1.04) translateY(-4px)}
}