/* Halaman pembuka KMK 375 dan pernyataan penggunaan.
   Kalkulator disembunyikan selama gerbang aktif; data tetap dimuat di latar belakang. */
:root{--gate-navy-deep:#00264d;--gate-navy:#003366;--gate-blue:#005599;--gate-sky:#1479c9;--gate-gold:#edbd47;--gate-gold-soft:#ffdb75;--gate-ink:#183653;--gate-muted:#5b6d85;--gate-line:#dce3ef;--gate-tint:#edf0fd}
html.gate-on body>.top,html.gate-on body>.institution-band,html.gate-on body>.workspace{display:none!important}
html.gate-on body{background:var(--gate-navy)}
.gate{position:relative;min-height:100vh;display:flex;flex-direction:column;color:#fff;overflow:hidden;isolation:isolate;
 background:
  radial-gradient(1100px 620px at 88% -10%,rgba(120,190,255,.30),transparent 60%),
  radial-gradient(800px 520px at -10% 110%,rgba(0,20,45,.55),transparent 60%),
  linear-gradient(135deg,var(--gate-navy-deep) 0%,var(--gate-navy) 34%,var(--gate-blue) 72%,var(--gate-sky) 100%)}
.gate::before,.gate::after{content:"";position:absolute;border-radius:50%;pointer-events:none;z-index:-1}
.gate::before{width:620px;height:620px;right:-180px;top:120px;border:1px solid rgba(255,255,255,.10);box-shadow:0 0 0 70px rgba(255,255,255,.025),0 0 0 140px rgba(255,255,255,.02)}
.gate::after{width:340px;height:340px;left:-120px;top:-120px;background:radial-gradient(circle,rgba(255,255,255,.08),transparent 70%)}
.gate-top{display:flex;align-items:center;gap:12px;padding:22px clamp(16px,5vw,64px) 0;max-width:1240px;width:100%;margin:0 auto}
.gate-mark{width:44px;height:44px;flex:none;border-radius:10px;background:var(--gate-navy);border:1px solid #e1bc5d;color:var(--gate-gold-soft);display:grid;place-items:center;font:700 19px/1 Arial,Helvetica,sans-serif;letter-spacing:-1px}
.gate-org strong{display:block;font-size:16px;line-height:1.25}
.gate-org small{display:block;font-size:12px;color:#cfe0f7;margin-top:2px}
.gate-hero{flex:0 0 auto;min-height:min(calc(100vh - 150px),660px);display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);align-items:center;align-content:center;gap:clamp(24px,4vw,56px);max-width:1240px;width:100%;margin:0 auto;padding:clamp(28px,7vh,80px) clamp(16px,5vw,64px) 40px}
.gate-copy{max-width:600px}
.gate-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:11px;font-weight:700;letter-spacing:2px;color:var(--gate-gold-soft);background:rgba(0,30,60,.35);border:1px solid rgba(255,219,117,.35);padding:6px 12px;border-radius:30px}
.gate-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gate-gold)}
.gate h1{font-size:clamp(34px,5.2vw,58px);line-height:1.06;letter-spacing:-1.5px;margin:18px 0 14px;color:#fff}
.gate h1 span{display:block;color:#bcd8f7;font-size:.52em;letter-spacing:-.3px;margin-top:8px;font-weight:600}
.gate-lead{font-size:16px;line-height:1.65;color:#dce9f9;margin:0 0 26px;max-width:540px}
.gate-steps{list-style:none;margin:0 0 30px;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;max-width:580px}
.gate-steps li{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:10px;padding:10px 11px;font-size:12px;line-height:1.35;color:#e9f1fc}
.gate-steps b{display:block;font-size:10px;letter-spacing:1.4px;color:var(--gate-gold-soft);margin-bottom:3px}
.gate-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px 18px}
.gate-btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;border:0;cursor:pointer;border-radius:10px;padding:14px 26px;font:700 15px/1 Arial,Helvetica,sans-serif;background:#fff;color:var(--gate-navy);box-shadow:0 10px 26px rgba(0,20,45,.35);transition:transform .15s ease,box-shadow .15s ease,background .15s ease}
.gate-btn:hover{background:#f2f6fd;transform:translateY(-1px);box-shadow:0 14px 30px rgba(0,20,45,.42)}
.gate-btn:focus-visible{outline:3px solid var(--gate-gold-soft);outline-offset:3px}
.gate-btn .arrow{transition:transform .15s ease}.gate-btn:hover .arrow{transform:translateX(3px)}
.gate-art{display:flex;justify-content:center}
.gate-art svg{width:100%;max-width:520px;height:auto;filter:drop-shadow(0 24px 40px rgba(0,20,45,.35))}
.gate-foot{max-width:1240px;width:100%;margin:auto auto 0;padding:16px clamp(16px,5vw,64px) 22px;font-size:11px;color:#b7cbe6;border-top:1px solid rgba(255,255,255,.10)}
.gate-foot strong{color:#fff}

/* Dialog pernyataan */
.gate-dialog{width:min(580px,calc(100vw - 32px));max-height:calc(100vh - 32px);margin:clamp(16px,8vh,96px) auto auto;padding:0;border:0;border-radius:16px;background:#fff;color:var(--gate-ink);box-shadow:0 30px 80px rgba(0,20,45,.45);overflow:auto;font:14px/1.55 Arial,Helvetica,sans-serif}
.gate-dialog::backdrop{background:rgba(0,26,51,.62);backdrop-filter:blur(3px)}
.gate-dialog[open]{animation:gate-pop .22s ease-out}
.gate-dialog-bar{height:6px;background:linear-gradient(90deg,var(--gate-navy),var(--gate-blue),var(--gate-sky))}
.gate-dialog-body{padding:24px 26px 22px}
.gate-dialog-head{display:flex;gap:14px;align-items:flex-start;margin-bottom:14px}
.gate-alert-icon{width:44px;height:44px;flex:none;border-radius:12px;background:#fff4d6;border:1px solid #f0d58a;display:grid;place-items:center}
.gate-kicker{font-size:10px;font-weight:700;letter-spacing:1.8px;color:#a26a00}
.gate-dialog h2{font-size:20px;line-height:1.3;margin:2px 0 0;color:var(--gate-navy)}
.gate-dialog h2:focus{outline:none}
.gate-statement{margin:0 0 14px;padding:14px 16px;border-left:4px solid var(--gate-blue);border-radius:8px;background:var(--gate-tint);color:#1d3a5c;font-size:14px;line-height:1.65}
.gate-statement strong{color:var(--gate-navy)}
.gate-understand{font-size:13px;color:var(--gate-muted);margin:0 0 6px}
.gate-points{margin:0 0 16px;padding-left:20px;font-size:13px;color:#3d5370}
.gate-points li{margin-bottom:6px}
.gate-agree{display:flex;flex-direction:row;align-items:flex-start;gap:10px;padding:12px 14px;border:1px solid #c9d6ed;border-radius:10px;background:#f8faff;cursor:pointer;font-size:13px;font-weight:600;color:var(--gate-ink)}
.gate-agree input{width:18px;height:18px;padding:0;margin:1px 0 0;flex:none;accent-color:var(--gate-blue)}
.gate-agree:has(input:checked){border-color:var(--gate-blue);background:#eef3fd}
.gate-dialog-actions{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:10px;margin-top:18px}
.gate-dialog-actions button{border-radius:8px;padding:11px 18px;font:600 14px/1.2 Arial,Helvetica,sans-serif;cursor:pointer}
.gate-back{background:#fff;border:1px solid #c8d6e8;color:var(--gate-blue)}
.gate-back:hover{background:#f3f6fc}
.gate-accept{background:var(--gate-blue);border:1px solid var(--gate-blue);color:#fff}
.gate-accept:hover:not(:disabled){background:var(--gate-navy)}
.gate-accept:disabled{opacity:.45;cursor:not-allowed}
.gate-dialog-actions button:focus-visible,.gate-agree input:focus-visible{outline:3px solid #8d9fef;outline-offset:3px}

/* Animasi masuk */
.gate-copy>*,.gate-art{animation:gate-rise .5s ease-out both}
.gate-copy>:nth-child(2){animation-delay:.05s}.gate-copy>:nth-child(3){animation-delay:.1s}.gate-copy>:nth-child(4){animation-delay:.15s}.gate-copy>:nth-child(5){animation-delay:.2s}.gate-art{animation-delay:.12s}
.gate-float{animation:gate-float 6s ease-in-out infinite;transform-box:fill-box;transform-origin:center}
@keyframes gate-rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes gate-pop{from{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:none}}
@keyframes gate-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@media (prefers-reduced-motion:reduce){.gate *,.gate-dialog[open]{animation:none!important;transition:none!important}}

/* Dalam iframe yang tinggi, isi diletakkan di bagian atas bingkai. */
html.gate-embedded .gate-hero{min-height:0;padding-top:clamp(24px,4vw,48px)}
@media (max-width:900px){
 .gate-hero{grid-template-columns:1fr;min-height:0;padding-top:18px;gap:8px}
 .gate-art{order:-1}.gate-art svg{max-width:340px}
 .gate-copy{max-width:none}
}
@media (max-width:560px){
 .gate-top{padding-top:16px}.gate-org strong{font-size:14px}.gate-org small{font-size:11px}.gate-mark{width:40px;height:40px;font-size:17px}
 .gate-art svg{max-width:260px}
 .gate h1{letter-spacing:-1px}
 .gate-lead{font-size:15px}
 .gate-steps{grid-template-columns:repeat(2,minmax(0,1fr))}
 .gate-actions{flex-direction:column;align-items:stretch}.gate-btn{width:100%}
 .gate-dialog-body{padding:20px 18px 18px}.gate-dialog h2{font-size:18px}
 .gate-dialog-actions{flex-direction:column-reverse}.gate-dialog-actions button{width:100%}
}
@media print{.gate,.gate-dialog{display:none!important}}
#tab-object h1:focus{outline:none}