:root{
  --bg:#0b0b0e;
  --panel:#0f1115;
  --border:rgba(255,255,255,0.12);
  --fg:#e5e7eb;
  --muted:#9ca3af;
  --primary:#f97316;
  --radius:16px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,'Helvetica Neue',Arial,'Noto Sans',sans-serif}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.container{max-width:1120px;margin:0 auto;padding:0 16px}
.section{padding:72px 0}
@media (max-width: 960px){ .section{padding:64px 0} }
@media (max-width: 640px){ .section{padding:56px 0} }

.center{text-align:center}
.h1{font-size:clamp(32px,6vw,56px);font-weight:800;letter-spacing:-0.02em;margin:0 auto;max-width:880px}
.h2{font-size:clamp(22px,3.6vw,32px);font-weight:700;margin:0 0 6px}
.p{font-size:clamp(16px,2.5vw,18px);line-height:1.7;margin:0}
.small{font-size:14px}
.muted{color:var(--muted)}
.accent{color:var(--primary)}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  border-radius:calc(var(--radius) + 4px);
  padding:12px 18px;background:var(--primary);color:#fff;
  font-weight:700;transition:.2s;white-space:nowrap;
  animation:heartbeat 2s ease-in-out infinite;
}
.btn:hover{opacity:.9}
.btn-ghost{background:rgba(255,255,255,.06);border:1px solid var(--border)}
@keyframes heartbeat{
  0%,100%{transform:scale(1)}
  14%{transform:scale(1.05)}
  28%{transform:scale(1)}
  42%{transform:scale(1.05)}
  70%{transform:scale(1)}
}

/* Header / Nav */
.header{position:sticky;top:0;z-index:50;background:rgba(0,0,0,.45);backdrop-filter:blur(6px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px}
.logo{width:32px;height:32px;border-radius:8px;background:rgba(255,255,255,.1)}
.brand-name{font-weight:800;letter-spacing:.02em}
.menu{display:flex;align-items:center;gap:18px}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:20px}

@media (max-width:780px){
  .menu{
    display:none;position:absolute;top:64px;left:0;right:0;
    background:rgba(0,0,0,.92);padding:16px;border-bottom:1px solid var(--border);
    box-shadow:0 12px 30px rgba(0,0,0,.35);flex-direction:column;gap:12px
  }
  .menu.open{display:flex}
  .nav-toggle{display:block}
}

/* Hero */
.hero .cta{display:flex;gap:12px;justify-content:center;margin-top:16px;flex-wrap:wrap}

/* Grid */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:18px}
@media (max-width:960px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.grid{grid-template-columns:1fr}}

.grid-2{grid-template-columns:repeat(2,1fr)}
@media (max-width:780px){.grid-2{grid-template-columns:1fr}}

/* Cards */
.card{
  background:rgba(255,255,255,.05);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;transition:.2s
}
.card:hover{background:rgba(255,255,255,.08)}
.card-title{font-weight:700;margin:6px 0 2px}
.card-desc{color:var(--muted);margin:4px 0 6px}
.text-cta{font-weight:700;color:#fff;opacity:.95}
.meta{font-size:12px;color:var(--muted);margin:6px 0}

/* Blog thumbs */
.thumb{width:100%;background:#151821 center/cover no-repeat;border-radius:12px;margin-bottom:10px}
.aspect-16-9{aspect-ratio:16/9}

/* ===== Banner 16:9 di dalam container (ada gutter) ===== */
.banner-frame{
  position:relative;width:100%;margin:12px auto 0;
  border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--border);background:rgba(255,255,255,.04)
}
.banner-frame img{
  width:100%;height:100%;object-fit:cover;display:block
}
.hero-visual{padding-top:0}
.spotlight{padding-top:0}

/* Footer */
.footer{margin-top:60px;border-top:1px solid var(--border);padding:32px 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:22px}
@media (max-width:860px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.footer-grid{grid-template-columns:1fr}}
.foot-link{display:block;color:#b8bdc6;margin:6px 0}
.copyright{margin-top:18px;border-top:1px dashed var(--border);padding-top:12px;color:#9aa3ad}

/* Aksesibilitas fokus */
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-color:var(--primary)
}