:root{
  --bg:#e9ecef; --paper:#f7f5f1; --caption:#fff;
  --text:#0f172a; --muted:#6b7280; --line:#ddd7ce;
  --brand:#1d4ed8; --accent:#60a5fa;
  --radius:18px; --elev:0 10px 28px rgba(16,24,40,.12);
  --elev-soft:0 6px 18px rgba(16,24,40,.08);
}
html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 "Inter",sans-serif;}
.section{padding:2rem 0;scroll-margin-top:90px}
.wrap{max-width:1100px;margin:0 auto;padding:4.5rem 1.2rem 2rem}
.banner{width:100%;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 6px 24px rgba(16,24,40,.08) inset}
#heroCanvas{display:block;width:100%;height:260px}

/* FAB */
.fab-home{position:fixed;top:16px;right:16px;z-index:50;width:52px;height:52px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--brand);box-shadow:var(--elev);display:flex;align-items:center;justify-content:center;cursor:pointer}
.fab-home:hover{transform:scale(1.07)}

/* Drawer */
.drawer{position:fixed;inset:0;z-index:45;pointer-events:none}
.drawer.open{pointer-events:auto}
.drawer-overlay{position:absolute;inset:0;background:rgba(15,23,42,.3);opacity:0;transition:.25s}
.drawer.open .drawer-overlay{opacity:1}
.drawer-panel{position:absolute;top:0;right:0;height:100%;width:280px;background:#fff;border-left:1px solid var(--line);box-shadow:-12px 0 30px rgba(16,24,40,.18);transform:translateX(100%);transition:.25s;display:flex;align-items:center;justify-content:center}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-nav{display:grid;gap:.9rem;width:100%;max-width:220px}
.drawer-nav a{display:block;text-align:center;text-decoration:none;color:var(--brand);padding:.75rem 1rem;border-radius:999px;border:1px solid var(--line);background:#f9f9f9}
.drawer-nav a:hover{background:rgba(96,165,250,.12);border-color:var(--accent)}

/* Hero */
.hero h1{margin:0 0 .6rem;font-size:clamp(2rem,1.2rem+2.2vw,3rem);color:var(--brand)}
.lead{color:var(--muted);max-width:70ch}

/* Visualización */
.grid-2x2{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}
@media(max-width:680px){.grid-2x2{grid-template-columns:1fr}}
.card{border-radius:var(--radius);box-shadow:var(--elev-soft);overflow:hidden;background:var(--paper)}
.media{aspect-ratio:4/3;overflow:hidden}
.media img{width:100%;height:100%;object-fit:cover;transition:.35s}
.card:hover .media img{transform:scale(1.1)}
.caption-band{background:var(--caption);text-align:center;padding:1rem;border-top:1px solid var(--line)}
.caption-band h3{margin:0;color:var(--accent)}

/* Proyectos */
.projects-intro{color:var(--muted);margin:0 0 1rem}
.task{border-top:1px solid var(--line);padding:1rem 0}
.task h3{margin:.2rem 0;color:var(--brand)}
.task .sub{color:var(--accent);font-weight:600}
.btn{display:inline-block;padding:.6rem 1rem;border-radius:999px;text-decoration:none;border:1px solid var(--accent);background:#fff;color:var(--accent)}
.btn:hover{background:var(--accent);color:#fff}

/* Sobre mí */
.about{color:var(--muted);max-width:70ch}
.footer{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--line);display:flex;justify-content:space-between}