:root{
  --bg:#0e0e11; --bg2:#15151a; --panel:#1b1b20; --text:#ececf1; --muted:#c4c5cc;
  --brand:#E16A17; --brand-2:#F6A25F; --accent:#21C7A8;
  --shadow: 0 10px 30px rgba(0,0,0,.35); --radius:18px; --maxw:1100px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  background:
    radial-gradient(1200px 700px at 70% -10%, #1e1e25 0%, var(--bg) 45%) no-repeat,
    radial-gradient(900px 400px at 15% 120%, #16161c 0%, var(--bg) 60%) no-repeat,
    var(--bg);
  color:var(--text); line-height:1.55;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* HEADER */
header{position:sticky;top:0;z-index:50;background:rgba(12,12,13,.6);
  backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;gap:12px;align-items:center}
.brand img{height:38px;width:38px;border-radius:10px;box-shadow:0 2px 12px rgba(225,106,23,.45)}
.brand h1{font-size:16px;letter-spacing:.4px;font-weight:700;margin:0}
nav ul{display:flex;list-style:none;gap:18px;margin:0;padding:0}
nav a{padding:8px 12px;border-radius:10px;color:var(--muted);border-bottom:2px solid transparent}
nav a:hover, nav a.active{color:var(--text);background:rgba(255,255,255,.06);border-bottom-color:var(--brand)}
.menu-btn{display:none}

/* VIEWS */
main{padding:28px 0}
.view{display:none}
.view.active{display:block}

/* HERO */
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
.hero-card{
  background:linear-gradient(160deg, rgba(225,106,23,.18), rgba(33,199,168,.06) 50%, rgba(255,255,255,.02));
  padding:28px;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid rgba(225,106,23,.25)
}
.pill{display:inline-flex;align-items:center;gap:8px;background:rgba(225,106,23,.12);
  border:1px solid rgba(225,106,23,.35);padding:8px 12px;border-radius:999px;color:#ffd2b3;font-weight:600}
.hero h2{font-size:40px;line-height:1.1;margin:10px 0}
.rule{margin-top:10px;padding:14px 16px;border-left:4px solid var(--brand);background:rgba(225,106,23,.08);border-radius:10px}
.hero-art{position:relative}
.hero-img{width:100%;border-radius:26px;border:1px solid rgba(255,255,255,.06);box-shadow:var(--shadow);object-fit:cover;aspect-ratio:4/3}

/* SECTIONS */
.section{padding:24px 0}
.section h3{font-size:28px;margin:0 0 8px}
.sub{color:var(--muted);margin:0 0 18px}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{padding:10px 14px;border-radius:999px;background:#151519;border:1px solid rgba(225,106,23,.28);color:#f2f2f4;box-shadow:0 2px 12px rgba(225,106,23,.12)}

/* ABOUT */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.card{background:var(--panel);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.headshot{width:100%;border-radius:18px;border:1px solid rgba(255,255,255,.08);object-fit:cover}

/* PORTFOLIO */
.logos{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.flip{grid-column:span 3; perspective:1000px}
.card3d{position:relative;width:100%;height:150px;transform-style:preserve-3d;transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.card3d.flipped{transform:rotateY(180deg)}
.face{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:var(--panel);
  border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px;backface-visibility:hidden}
.back{transform:rotateY(180deg)}
.logo{max-height:68px;max-width:90%;object-fit:contain;filter:drop-shadow(0 6px 18px rgba(0,0,0,.35))}
.back p{color:var(--muted);margin:0}

/* COURSE */
.course{display:grid;grid-template-columns:260px 1fr;gap:18px}
.side{background:var(--panel);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);padding:14px}
.side a{display:block;padding:10px 12px;border-radius:10px;color:var(--muted)}
.side a.active, .side a:hover{background:rgba(255,255,255,.06);color:var(--text)}
.content{background:var(--panel);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);padding:18px}
.video-ph{width:100%;aspect-ratio:16/9;background:linear-gradient(120deg, rgba(225,106,23,.25), rgba(33,199,168,.18));
  border-radius:12px;border:1px dashed rgba(255,255,255,.18);display:grid;place-items:center;color:#ffe1cc;font-weight:700}

/* CONTACT */
.foot-card{display:grid;grid-template-columns:1fr 1fr;gap:18px}

/* RESPONSIVE */
@media (max-width: 900px){
  .hero{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}
  .logos{grid-template-columns:1fr 1fr}
  .course{grid-template-columns:1fr}
  nav ul{display:none}
  .menu-btn{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:12px;background:rgba(255,255,255,.06);color:var(--text);border:1px solid rgba(255,255,255,.1)}
  .menu-open nav ul{display:flex;flex-direction:column;position:absolute;top:68px;left:0;right:0;background:#0f0f12;padding:12px;border-bottom:1px solid rgba(255,255,255,.06)}
  .brand h1{display:none}
}