:root{
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #0f1724;
  --muted: #64748b;
  --accent: #1366ff;    /* tu peux changer ici la couleur principale */
  --accent-2: #002233;  /* couleur secondaire (ex: pour col noir) */
  --radius: 12px;
  --container: 1100px;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.45;
}

/* Container */
.container{max-width:var(--container);margin:0 auto;padding:0 20px}

/* Header */
.site-header{background:#fff;box-shadow:0 1px 4px rgba(15,23,36,0.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand a{color:var(--accent);text-decoration:none;font-weight:700;font-size:1.1rem}
.nav a{margin-left:18px;color:var(--muted);text-decoration:none}
.nav a:hover{color:var(--text)}

/* HERO */
.hero{padding:48px 0;background:linear-gradient(180deg, rgba(19,102,255,0.04), transparent 60%)}
.hero-inner{display:flex;gap:30px;align-items:center}
.hero-text{flex:1}
.hero-text h1{font-size:2rem;margin:0 0 12px}
.hero-text p{color:var(--muted);margin:0 0 18px}
.hero-image img{max-width:420px;border-radius:12px;box-shadow:0 6px 30px rgba(2,6,23,0.08)}
.btn{display:inline-block;padding:10px 16px;border-radius:8px;text-decoration:none;font-weight:600}
.btn.small{padding:8px 12px;font-size:0.9rem}
.btn.primary{background:var(--accent);color:#fff}
.btn.outline{border:1px solid rgba(15,23,36,0.06);color:var(--text);background:#fff}
.btn.primary:hover{opacity:0.95}

/* Sections */
.section{padding:42px 0}
.section.light{background:#fff}
.section-title{font-size:1.4rem;margin:0 0 18px}

/* Projects grid */
.projects-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:0 6px 20px rgba(2,6,23,0.06)}
.card img{width:100%;display:block;object-fit:cover;height:200px}
.card-body{padding:18px}
.card-body h3{margin:0 0 8px}
.card-body p{margin:0 0 12px;color:var(--muted);font-size:0.95rem}
.tags{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.tags span{background:#eef3ff;color:var(--accent);padding:6px 8px;border-radius:999px;font-size:0.8rem}

/* About */
.about-grid{display:flex;gap:28px;align-items:flex-start}
.about-grid > div{flex:1}

/* Skills */
.skills-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.skill{background:var(--card);padding:16px;border-radius:10px;box-shadow:0 6px 18px rgba(2,6,23,0.04)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.contact-form label{display:block;margin-bottom:12px;font-size:0.95rem;color:var(--muted)}
.contact-form input, .contact-form textarea{width:100%;padding:10px;border-radius:8px;border:1px solid #e6eef8;background:#fff}
.form-actions{display:flex;gap:12px;margin-top:10px;align-items:center}
.form-status{margin-top:12px;color:green}

/* Footer */
.site-footer{padding:20px 0;background:#fff;margin-top:28px;text-align:center;color:var(--muted)}

/* Responsive */
@media (max-width:1000px){
  .projects-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{flex-direction:column}
  .contact-grid{grid-template-columns:1fr}
}
@media (max-width:700px){
  .projects-grid{grid-template-columns:1fr}
  .hero-inner{flex-direction:column-reverse}
  .hero-image img{width:100%}
}