/* ==============================================
   shared.css — Styles communs Arthur Viaud Portfolio
   Importé par toutes les pages du site
   DA : #0A0F1E · #00F2EA · #8A2BE2 · glassmorphism
============================================== */

/* =============================================
   VARIABLES & RESET
============================================= */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:       #0A0F1E;
  --teal:     #00F2EA;
  --mauve:    #8A2BE2;
  --cream:    #F0ECE2;
  --muted:    rgba(240,236,226,0.52);
  --glass-bg: rgba(255,255,255,0.03);
  --glass-bd: 1px solid rgba(255,255,255,0.10);
  --glass-blur: blur(12px);
  --radius:   12px;
}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--cream);
  font-family:'DM Sans',sans-serif;
  min-height:100vh;
  overflow-x:hidden;
  cursor:none;
}

/* =============================================
   CURSOR
============================================= */
.cursor{
  position:fixed;width:10px;height:10px;
  background:var(--teal);border-radius:50%;
  pointer-events:none;z-index:9999;
  transform:translate(-50%,-50%);
  mix-blend-mode:difference;
  transition:width .15s,height .15s;
}
.cursor-ring{
  position:fixed;width:36px;height:36px;
  border:1px solid rgba(0,242,234,.32);
  border-radius:50%;pointer-events:none;z-index:9998;
  transform:translate(-50%,-50%);
}

/* =============================================
   MESH GRADIENT BACKGROUND
============================================= */
.mesh{
  position:fixed;inset:0;z-index:0;
  overflow:hidden;pointer-events:none;
}
.mesh-blob{
  position:absolute;border-radius:50%;
  filter:blur(100px);opacity:.13;
  animation:meshFloat linear infinite;
}
.mb1{width:600px;height:600px;background:var(--teal);top:-150px;left:-100px;animation-duration:28s}
.mb2{width:520px;height:520px;background:var(--mauve);top:40%;right:-130px;animation-duration:22s;animation-delay:-10s}
.mb3{width:400px;height:400px;background:var(--teal);bottom:-90px;left:35%;animation-duration:34s;animation-delay:-17s;opacity:.09}
.mb4{width:300px;height:300px;background:var(--mauve);top:22%;left:48%;animation-duration:18s;animation-delay:-6s;opacity:.07}
@keyframes meshFloat{
  0%  {transform:translate(0,0) scale(1) rotate(0deg)}
  25% {transform:translate(50px,-70px) scale(1.07) rotate(90deg)}
  50% {transform:translate(-40px,60px) scale(.93) rotate(180deg)}
  75% {transform:translate(65px,30px) scale(1.10) rotate(270deg)}
  100%{transform:translate(0,0) scale(1) rotate(360deg)}
}

/* =============================================
   GRAIN / NOISE OVERLAY
============================================= */
.grain{
  position:fixed;inset:0;z-index:1;
  pointer-events:none;opacity:.04;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:180px;
}

/* =============================================
   NAVBAR
============================================= */
nav{
  position:fixed;top:0;left:0;right:0;z-index:500;
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 56px;
  background:rgba(10,15,30,.45);
  backdrop-filter:var(--glass-blur) saturate(1.4);
  border-bottom:var(--glass-bd);
  transition:padding .3s;
}
nav.scrolled{padding:13px 56px}

/* Logo */
.logo-block{display:flex;flex-direction:column;gap:2px;text-decoration:none}
.logo-name{
  font-family:'DM Sans',sans-serif;font-size:22px;
  font-weight:800;letter-spacing:-1px;
  background:linear-gradient(105deg,var(--teal),#a78bff,var(--teal));
  background-size:220%;
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;animation:logoShine 5s ease infinite;
}
@keyframes logoShine{0%,100%{background-position:0%}50%{background-position:100%}}
.logo-sub{font-size:7px;letter-spacing:3px;text-transform:uppercase;color:rgba(240,236,226,.25)}

/* Nav links */
.nav-links{display:flex;gap:36px;list-style:none;align-items:center}
.nav-links a{
  color:var(--muted);text-decoration:none;
  font-size:11px;letter-spacing:2.5px;text-transform:uppercase;
  transition:color .25s;position:relative;padding-bottom:2px;
}
.nav-links a::after{
  content:'';position:absolute;bottom:-3px;left:0;
  width:0;height:1px;background:var(--teal);transition:width .3s;
}
.nav-links a:hover,.nav-links a.active{color:var(--cream)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active::after{background:linear-gradient(90deg,var(--teal),var(--mauve))}

/* CTA CV */
.nav-cta{
  background:var(--glass-bg);
  border:var(--glass-bd);
  backdrop-filter:var(--glass-blur);
  color:var(--teal)!important;
  padding:9px 22px;border-radius:4px;
  font-size:11px!important;letter-spacing:1.5px;
  transition:background .25s,border-color .25s!important;
}
.nav-cta:hover{
  background:rgba(0,242,234,.12)!important;
  border-color:rgba(0,242,234,.4)!important;
}
.nav-cta::after{display:none!important}

/* Hamburger */
.hamburger{
  display:none;flex-direction:column;gap:5px;
  cursor:pointer;background:none;border:none;padding:4px;
}
.hamburger span{display:block;width:24px;height:1.5px;background:var(--cream);transition:.3s}

/* =============================================
   MOBILE MENU
============================================= */
.mobile-menu{
  display:none;position:fixed;inset:0;
  background:rgba(10,15,30,.97);backdrop-filter:var(--glass-blur);
  z-index:490;flex-direction:column;align-items:center;justify-content:center;gap:40px;
}
.mobile-menu.open{display:flex}
.mobile-menu a{
  font-family:'Bebas Neue',sans-serif;font-size:54px;
  letter-spacing:3px;color:var(--cream);text-decoration:none;transition:color .25s;
}
.mobile-menu a:hover{color:var(--teal)}
.mob-close{
  position:absolute;top:28px;right:28px;
  background:none;border:none;color:var(--muted);font-size:26px;
  cursor:pointer;opacity:.6;
}

/* =============================================
   SCROLL INDICATOR (morphing circle)
============================================= */
.scroll-indicator{
  position:fixed;bottom:32px;right:32px;z-index:400;
  width:52px;height:52px;cursor:pointer;
}
.si-track{position:absolute;inset:0;border-radius:50%;border:1px solid rgba(255,255,255,.1)}
.si-fill{
  position:absolute;inset:0;border-radius:50%;
  background:conic-gradient(var(--teal) 0%, var(--mauve) var(--pct,0%), transparent var(--pct,0%));
  transition:border-radius .6s ease;opacity:.85;
}
.si-label{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:9px;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted);
}

/* =============================================
   SCROLL REVEAL
============================================= */
.reveal{opacity:0;transform:translateY(32px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* =============================================
   GLASS CARD
============================================= */
.glass-card{
  background:var(--glass-bg);
  border:var(--glass-bd);
  backdrop-filter:var(--glass-blur);
  border-radius:var(--radius);
}

/* =============================================
   BOUTONS
============================================= */
.btn-primary{
  display:inline-flex;align-items:center;gap:9px;
  background:linear-gradient(135deg,var(--teal),#00c4be);
  color:#0A0F1E;padding:14px 32px;font-size:12px;
  font-weight:600;letter-spacing:1.5px;text-transform:uppercase;
  text-decoration:none;border-radius:4px;border:none;
  transition:transform .22s,box-shadow .3s;cursor:pointer;
  font-family:'DM Sans',sans-serif;
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(0,242,234,.25)}

.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--muted);font-size:12px;letter-spacing:1.5px;
  text-transform:uppercase;text-decoration:none;
  border-bottom:1px solid rgba(240,236,226,.18);
  padding-bottom:3px;transition:color .22s,border-color .22s;
  font-family:'DM Sans',sans-serif;
}
.btn-ghost:hover{color:var(--cream);border-color:rgba(240,236,226,.5)}

.btn-back{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--muted);font-size:13px;letter-spacing:1.5px;text-transform:uppercase;
  text-decoration:none;
  border:var(--glass-bd);background:var(--glass-bg);
  backdrop-filter:var(--glass-blur);
  padding:14px 28px;border-radius:4px;
  transition:color .25s,border-color .25s,background .25s,transform .22s;
}
.btn-back:hover{color:var(--cream);border-color:rgba(0,242,234,.35);background:rgba(0,242,234,.06);transform:translateX(-4px)}

.btn-next{
  display:inline-flex;align-items:center;gap:10px;
  background:linear-gradient(135deg,var(--teal),#00c4be);
  color:#0A0F1E;padding:14px 28px;font-size:13px;
  font-weight:600;letter-spacing:1.5px;text-transform:uppercase;
  text-decoration:none;border-radius:4px;border:none;
  transition:transform .22s,box-shadow .3s;cursor:pointer;
  font-family:'DM Sans',sans-serif;
}
.btn-next:hover{transform:translateX(4px);box-shadow:0 14px 32px rgba(0,242,234,.22)}

.btn-cv{
  display:inline-flex;align-items:center;gap:12px;
  background:linear-gradient(135deg,var(--teal),#00c4be);
  color:#0A0F1E;padding:18px 42px;font-size:13px;font-weight:700;
  letter-spacing:2px;text-transform:uppercase;text-decoration:none;
  border-radius:4px;transition:transform .22s,box-shadow .3s;
  position:relative;z-index:1;font-family:'DM Sans',sans-serif;
}
.btn-cv:hover{transform:translateY(-3px);box-shadow:0 20px 44px rgba(0,242,234,.28)}

/* =============================================
   FOOTER DE NAVIGATION PROJET / PARCOURS
============================================= */
.proj-footer,
.page-footer-nav{
  position:relative;z-index:10;
  padding:48px 56px;border-top:var(--glass-bd);
  display:flex;align-items:center;justify-content:space-between;
  background:rgba(0,0,0,.2);
}

/* =============================================
   FOOTER GLOBAL
============================================= */
footer{
  position:relative;z-index:10;
  padding:34px 56px;
  border-top:var(--glass-bd);
  display:flex;justify-content:space-between;align-items:center;
  background:rgba(0,0,0,.25);
}
.f-logo{font-family:'Bebas Neue',sans-serif;font-size:17px;letter-spacing:3px;color:rgba(240,236,226,.22)}
.f-links{display:flex;gap:26px}
.f-links a{font-size:11px;letter-spacing:2px;text-transform:uppercase;color:rgba(240,236,226,.28);text-decoration:none;transition:color .22s}
.f-links a:hover{color:var(--teal)}
.f-copy{font-size:11px;color:rgba(240,236,226,.16)}

/* =============================================
   KEYFRAMES GLOBAUX
============================================= */
@keyframes riseUp{
  from{opacity:0;transform:translateY(30px)}
  to{opacity:1;transform:translateY(0)}
}

/* =============================================
   RESPONSIVE — BASE (commun à toutes les pages)
============================================= */
@media(max-width:960px){
  nav{padding:16px 24px}
  nav.scrolled{padding:12px 24px}
  .nav-links{display:none}
  .hamburger{display:flex}
  footer{flex-direction:column;gap:14px;text-align:center;padding:26px 24px}
  .proj-footer,.page-footer-nav{flex-direction:column;gap:16px;padding:36px 24px}
  .btn-cv{padding:15px 28px}
  /* Disable cursor on mobile */
  .cursor,.cursor-ring{display:none}
  body{cursor:auto}
}

/* ==============================================
   PHASE 5 — CREATIVE ANIMATION ENGINE
============================================== */

/* ─── PAGE TRANSITION OVERLAY ──────────────────────────────────────────── */
#page-overlay{
  position:fixed;inset:0;z-index:10000;
  background:linear-gradient(160deg,#0A0F1E 55%,rgba(138,43,226,.35) 100%);
  transform:translateY(0);
  transition:transform .65s cubic-bezier(0.76,0,0.24,1);
  will-change:transform;pointer-events:none;
}
#page-overlay.pt-out{transform:translateY(-100%)}

/* ─── CURSOR ENHANCED ──────────────────────────────────────────────────── */
.cursor-ring{
  display:flex;align-items:center;justify-content:center;
  transition:width .28s cubic-bezier(0.34,1.56,0.64,1),
             height .28s cubic-bezier(0.34,1.56,0.64,1),
             border-color .25s, background .25s;
}
.cursor.cur-hover{width:14px;height:14px;background:var(--mauve)}
.cursor.cur-hidden{opacity:0}
.cursor-ring.ring-hover{
  width:52px;height:52px;border-color:rgba(138,43,226,.45);
}
.cursor-ring.ring-card{
  width:44px;height:44px;border-color:rgba(0,242,234,.45);
}
.cursor-ring.ring-label{
  width:80px;height:80px;border-radius:50%;
  border-color:rgba(0,242,234,.7);
  background:rgba(0,242,234,.07);
  backdrop-filter:blur(4px);
}
.cursor-ring.ring-label::after{
  content:attr(data-label);
  font-size:8.5px;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--teal);font-family:'DM Sans',sans-serif;font-weight:500;
  white-space:nowrap;
}

/* ─── REVEAL VARIANTS ──────────────────────────────────────────────────── */
.reveal-left{
  opacity:0;transform:translateX(-44px);
  transition:opacity .75s ease,transform .75s ease;
}
.reveal-right{
  opacity:0;transform:translateX(44px);
  transition:opacity .75s ease,transform .75s ease;
}
.reveal-scale{
  opacity:0;transform:scale(.88);
  transition:opacity .75s ease,transform .75s cubic-bezier(0.34,1.56,0.64,1);
}
.reveal-blur{
  opacity:0;filter:blur(10px);transform:translateY(20px);
  transition:opacity .8s ease,filter .8s ease,transform .8s ease;
}
.reveal-left.visible,.reveal-right.visible{opacity:1;transform:translateX(0)}
.reveal-scale.visible{opacity:1;transform:scale(1)}
.reveal-blur.visible{opacity:1;filter:blur(0);transform:translateY(0)}

/* ─── HERO LETTER SPLIT ANIMATION ─────────────────────────────────────── */
.hero-name .letter{
  display:inline-block;
  opacity:0;
  transform:translateY(42px) rotate(4deg);
  animation:letterRise .65s cubic-bezier(0.34,1.56,0.64,1) forwards;
}
@keyframes letterRise{
  to{opacity:1;transform:translateY(0) rotate(0deg)}
}

/* ─── IS-DESKTOP — JS handles card transforms ─────────────────────────── */
body.is-desktop .glass-card:hover,
body.is-desktop .proj-card:hover,
body.is-desktop .dispo-card:hover{
  transform:none;
  transition:background .3s,border-color .3s;
}

/* ─── MAGNETIC BUTTONS — smooth spring back ───────────────────────────── */
.btn-primary,.btn-cv,.btn-next,.btn-back,.nav-cta{
  transition:transform .4s cubic-bezier(0.34,1.56,0.64,1),
             box-shadow .3s,background .25s,border-color .25s,color .25s;
}

/* ─── MOBILE: keep CSS hover transforms ───────────────────────────────── */
@media(max-width:960px){
  .glass-card{transition:background .3s,border-color .3s,transform .3s}
  .btn-primary,.btn-cv,.btn-next,.btn-back,.nav-cta{transition:transform .25s,box-shadow .3s,background .25s,border-color .25s,color .25s}
}