/* =====================================================
   about.css — Apple-style minimal, airy & elegant
   Antoine Letellier — 2025
   ===================================================== */

/* ---------- Design tokens ---------- */
:root{
  /* Couleurs */
  --bg: #0b0b0c;
  --text: #f5f7fb;
  --muted: #a8adbb;
  --surface: rgba(255,255,255,.06);
  --border: rgba(255,255,255,.14);
  --brand: #7dd3fc;
  --ink: #0ea5e9;
  --ring: rgba(125,211,252,.5);

  /* Layout & effets */
  --container: clamp(960px, 86vw, 1160px);
  --radius: 16px;
  --blur: 14px;
  --shadow: 0 10px 24px rgba(0,0,0,.18);

  /* Échelle typo fluide */
  --t-1: clamp(.94rem,.9rem + .2vw,1rem);
  --t0: clamp(1.02rem,.98rem + .25vw,1.08rem);
  --t1: clamp(1.18rem,1.05rem + .55vw,1.34rem);
  --t2: clamp(1.5rem,1.25rem + 1vw,2rem);
}

@media (prefers-color-scheme: light){
  :root{
    --bg: #fbfbfd; --text:#0b0b0c; --muted:#5b5f6b;
    --surface: rgba(255,255,255,.85); --border: rgba(0,0,0,.08);
    --shadow: 0 14px 30px rgba(0,0,0,.08);
  }
}

/* ---------- Base ---------- */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; color:var(--text);
  background:
    radial-gradient(1100px 700px at 5% -10%, rgba(125,211,252,.10), transparent 40%),
    radial-gradient(900px 500px at 110% 10%, rgba(236,72,153,.06), transparent 42%),
    var(--bg);
  font:400 var(--t0)/1.7 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Apple Color Emoji","Segoe UI Emoji";
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img{max-width:100%; height:auto; display:block}
a{color:inherit; text-decoration:none}
:focus-visible{outline:2px solid var(--ring); outline-offset:2px}

/* ---------- Header (harmonisé avec header.css) ---------- */
#MainTop{
  position:sticky; top:0; z-index:100;
  backdrop-filter:saturate(160%) blur(var(--blur));
  background:color-mix(in oklab, var(--surface) 85%, transparent);
  border-bottom:1px solid var(--border);
}
#MainTop nav{
  width:min(100%,var(--container));
  margin-inline:auto;
  padding:10px clamp(14px,2vw,28px);
  display:flex; gap:6px; align-items:center; flex-wrap:wrap;
}
#MainTop nav a{
  padding:.55rem .9rem; border-radius:999px;
  border:1px solid transparent;
}
#MainTop nav a:hover{
  border-color:var(--border);
  background:rgba(255,255,255,.04);
}
#MainTop .cv-btn{
  margin-left:auto;
  background:linear-gradient(180deg, var(--brand), var(--ink));
  color:#fff; box-shadow:0 10px 22px rgba(2,132,199,.26);
  border-color:transparent;
}
#MainTop nav a[aria-current="page"]{
  border-color:color-mix(in oklab, var(--brand) 45%, var(--border));
  background:rgba(125,211,252,.10);
}

/* ---------- Layout helpers ---------- */
.container{width:min(100%,var(--container)); margin-inline:auto; padding-inline: clamp(14px,2vw,28px)}
.section{padding-block: clamp(22px, 6vw, 60px)}
.prose{color:var(--muted); font-size:var(--t0)}

/* ---------- Hero ---------- */
.about-hero{
  padding: clamp(28px, 10vw, 110px) 0 clamp(16px, 6vw, 40px);
  text-align:center;
}
.about-hero h1{
  font-size: clamp(1.8rem, 1.4rem + 2.4vw, 3rem);
  margin:0 0 .6rem; font-weight:900; letter-spacing:.2px;
}
.about-hero .lead{
  max-width: 850px; margin: 0 auto;
  color:var(--muted); font-size: var(--t1);
}
.cta{
  margin-top: clamp(12px, 3vw, 20px);
  display:flex; gap:10px; justify-content:center; flex-wrap:wrap;
}
.btn{
  display:inline-block; padding:.75rem 1rem;
  border-radius:12px; border:1px solid var(--border);
  text-decoration:none; font-weight:800;
  transition: transform .15s ease, background .2s;
}
.btn:hover{transform: translateY(-1px)}
.btn.primary{
  background: linear-gradient(180deg, var(--brand), var(--ink));
  border-color:transparent; color:#fff;
  box-shadow:0 10px 22px rgba(2,132,199,.26);
}
.btn.ghost{background: transparent; color:var(--text)}

/* ---------- Bio ---------- */
.about-bio h2{font-size: var(--t2); margin:0 0 .6rem; font-weight:900}

/* ---------- Valeurs ---------- */
.about-values h2{font-size: var(--t2); margin:0 0 1rem; font-weight:900}
.values{
  display:grid; grid-template-columns: repeat(12, 1fr);
  gap: clamp(12px, 1.8vw, 16px); list-style:none; padding:0; margin:0;
}
.values li{
  grid-column: span 3;
  border:1px solid var(--border); border-radius: var(--radius);
  background: color-mix(in oklab, var(--surface) 92%, transparent);
  backdrop-filter: blur(var(--blur)); box-shadow: var(--shadow);
  padding: clamp(12px, 2vw, 16px);
  transition: transform .15s ease, box-shadow .15s ease;
}
.values li:hover{transform: translateY(-3px); box-shadow: 0 16px 36px rgba(2,132,199,.14)}
.values h3{margin:.1rem 0 .25rem; font-size: var(--t1); font-weight:800}
.values p{margin:0; color:var(--muted)}
@media (max-width: 1024px){ .values li{grid-column: span 6} }
@media (max-width: 640px){ .values li{grid-column: span 12} }

/* ---------- Compétences ---------- */
.about-skills h2{font-size: var(--t2); margin:0 0 1rem; font-weight:900}
.skills-grid{
  display:grid; grid-template-columns: repeat(12, 1fr);
  gap: clamp(12px, 1.8vw, 16px);
}
.skill-card{
  grid-column: span 4;
  border:1px solid var(--border); border-radius:14px;
  background: color-mix(in oklab, var(--surface) 90%, transparent);
  backdrop-filter: blur(var(--blur)); box-shadow: var(--shadow);
  padding: clamp(12px, 2vw, 16px);
  transition: transform .15s ease, box-shadow .15s ease;
}
.skill-card:hover{transform: translateY(-3px); box-shadow: 0 16px 36px rgba(2,132,199,.14)}
.skill-card h3{margin:.1rem 0 .25rem; font-size: var(--t1); font-weight:800}
.skill-card p{margin:0; color:var(--muted)}
@media (max-width: 1024px){ .skill-card{grid-column: span 6} }
@media (max-width: 640px){ .skill-card{grid-column: span 12} }

/* ---------- Outils (chips) ---------- */
.about-tools h2{font-size: var(--t2); margin:0 0 1rem; font-weight:900}
.tool-chips{
  display:flex; gap:8px; flex-wrap:wrap;
  list-style:none; padding:0; margin:0;
}
.tool-chips li{
  padding:.45rem .75rem; border-radius:999px;
  border:1px solid var(--border);
  background: color-mix(in oklab, var(--surface) 78%, transparent);
  font-weight:700; font-size: var(--t-1);
}

/* ---------- Contact ---------- */
.about-contact h2{font-size: var(--t2); margin:0 0 .6rem; font-weight:900}
.about-contact .prose{max-width: 900px}
.about-contact .cta{justify-content:flex-start}

/* ---------- Footer ---------- */
footer{
  margin-top: clamp(28px, 8vw, 80px);
  border-top:1px solid var(--border);
  background: color-mix(in oklab, var(--surface) 78%, transparent);
  backdrop-filter: blur(var(--blur));
}
.footer-content{
  width:min(100%,var(--container));
  margin-inline:auto;
  padding:16px clamp(14px,2vw,28px);
  display:grid; grid-template-columns: 1fr auto auto;
  gap:12px; align-items:center;
}
.footer-content .link{color:var(--muted); text-decoration:none}
.footer-content .link:hover{color:var(--text); text-decoration:underline}
@media (max-width:720px){
  .footer-content{grid-template-columns: auto 1fr; grid-auto-rows:auto}
  .footer-content span{grid-column:1/-1}
}

/* ---------- Accessibilité / confort ---------- */
@media (prefers-reduced-motion: reduce){
  *{ transition: none !important; animation: none !important }
}