/* Portfolio — Saad Raiss (clean, structuré) */
@charset "UTF-8";
html{ -webkit-text-size-adjust:100%; text-rendering:optimizeLegibility; -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale; }
body{ font-family: Inter, system-ui, "Segoe UI", Roboto, Arial, sans-serif; }

:root{
  --bg:#0f1117;
  --panel:#121a26;
  --text:#e8ecf2;
  --muted:#aab4c4;
  --brand:#5da8ff;
  --accent:#34d399;
  --border:#203049;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,Segoe UI,Roboto,Arial,sans-serif;line-height:1.6}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

.wrap{max-width:1040px;margin:0 auto;padding:0 18px}

/* Topbar */
.topbar{position:sticky;top:0;background:rgba(15,17,23,.7);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--border);z-index:50}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:12px}
.logo{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,#1f2937 0%, #111827 60%);border:1px solid var(--border);color:#fff;font-weight:700}
.title{display:flex;flex-direction:column}
.title strong{font-size:15px}
.title span{font-size:12px;color:var(--muted)}
.nav a{color:var(--text);margin-left:16px}
.nav a:hover{color:var(--brand)}

/* Hero */
.hero{padding:56px 0;border-bottom:1px solid var(--border);background:radial-gradient(1200px 300px at 70% -10%, rgba(93,168,255,.22), transparent)}
.hero-grid{display:grid;grid-template-columns:1.4fr .8fr;gap:24px}
.hero-text h1{margin:0 0 10px 0;font-size:36px;line-height:1.2}
.hero-text h1 span{color:var(--brand)}
.hero-text p{color:var(--muted)}
.cta{display:flex;gap:10px;margin:16px 0 10px}
.btn{display:inline-block;padding:10px 14px;border-radius:12px;background:var(--accent);color:#0b0f16;font-weight:700;border:1px solid #1a2b23}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--border)}
.btn.small{padding:8px 12px;border-radius:10px;font-weight:600}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.chip{background:#172033;border:1px solid var(--border);color:#fff;padding:6px 10px;border-radius:999px;font-size:13px}

/* Sections */
section{padding:42px 0;border-bottom:1px solid var(--border)}
h2{margin:0 0 14px 0;font-size:22px}

/* Timeline */
.timeline{display:grid;gap:16px}
.xp{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:16px}
.xp header{margin-bottom:6px}
.xp h3{margin:0 0 4px 0;font-size:18px}
.meta{color:var(--muted);font-size:14px}
.xp ul{margin:8px 0 0 18px}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.tags span{font-size:12px;background:#172033;border:1px solid var(--border);padding:4px 8px;border-radius:999px;color:#ccd3df}

/* Cards */
.cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:16px;display:flex;flex-direction:column}
.card-title{font-weight:700;font-size:17px}
.card-sub{color:var(--muted);margin-bottom:6px}
.card p{color:var(--muted)}
.bul{margin:6px 0 0 18px}
.bul.small li{margin:4px 0}
.actions{margin-top:10px}
.tags{margin-top:auto}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:18px}
.cont{list-style:none;margin:0;padding:0}
.cont li{margin:8px 0}
.note{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:16px;color:#cfe9d7}

/* Footer */
.foot{padding:20px 0}
.foot .wrap{display:flex;gap:10px;align-items:center;justify-content:center;color:var(--muted)}
.sep{opacity:.6}

/* Responsive */
@media (max-width: 900px){
  .hero-grid{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
}

/* -------- Formations (grille 2 colonnes) -------- */
.edu-grid{display:grid;grid-template-columns:1.25fr .85fr;gap:18px}
.subhead{margin:0 0 8px 0;font-size:14px;color:var(--muted);letter-spacing:.2px;text-transform:uppercase}
@media (max-width:900px){.edu-grid{grid-template-columns:1fr}}

/* ===== Certifications (cartes pro en grille) ===== */
.cert-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:18px}
.cert{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:8px}
.cert-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.cert h4{margin:0;font-size:16px}
.issuer{font-size:13px;color:var(--muted)}
.pill{font-size:12px;line-height:1;padding:6px 8px;border-radius:999px;border:1px solid var(--border);background:#172033;color:#dfe7f4;white-space:nowrap}
@media (max-width:900px){.cert-grid{grid-template-columns:1fr}}

/* Typo responsive & grilles adaptées mobile */
.hero-text h1{ font-size: clamp(28px, 4.2vw, 40px); line-height: 1.2; }
.wrap{ padding-left: 16px; padding-right: 16px; }
.btn{ white-space: nowrap; }
@media (max-width:900px){
  .hero-grid{ grid-template-columns: 1fr; }
  .cards{ grid-template-columns: 1fr; }
  .contact-grid{ grid-template-columns: 1fr; }
}