/* =========================================================
   Panduan Ceco Billing Mobile — gaya playful (sama dengan index)
   Struktur HTML tidak berubah, hanya tampilan.
   Mendukung mode terang & gelap (atribut data-theme di <html>).
   ========================================================= */
:root{
  --ink:#16123a;--y:#ffd23f;--p:#ff5fa2;--m:#38e0a8;--b:#3a5bff;
  --pbg:#dfdbff;--surf:#fff;--surf2:#f1efff;--txt:#16123a;--mut:#4f4a7a;--line:#16123a;--dots:rgba(22,18,58,.2);
  --side:#16123a;--side-2:#221b57;--sideTxt:#d9d5ff;
  --warn:#ffd0e4;--info:#fff3b8;--link:#3a5bff;
  --d:'Bricolage Grotesque',system-ui,sans-serif;--s:'DM Sans',system-ui,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --pbg:#100c2b;--surf:#1d1749;--surf2:#27205c;--txt:#f1eeff;--mut:#bdb7ec;--line:#05030f;--dots:rgba(255,255,255,.08);
    --side:#090620;--side-2:#150f3a;--warn:#4a1635;--info:#4a3d0e;--link:#ffd23f;color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --pbg:#100c2b;--surf:#1d1749;--surf2:#27205c;--txt:#f1eeff;--mut:#bdb7ec;--line:#05030f;--dots:rgba(255,255,255,.08);
  --side:#090620;--side-2:#150f3a;--warn:#4a1635;--info:#4a3d0e;--link:#ffd23f;color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:22px;background:var(--pbg)}
body{margin:0;background-color:var(--pbg);background-image:radial-gradient(var(--dots) 1.4px,transparent 1.6px);background-size:24px 24px;color:var(--txt);
  font-family:var(--s);font-size:16px;line-height:1.65;overflow-x:visible;padding-bottom:env(safe-area-inset-bottom,0px)}
h1,h2,h3,h4,summary,.brand strong{font-family:var(--d)}
a{color:var(--link);text-decoration:none;font-weight:700}
a:hover{text-decoration:underline;text-underline-offset:3px}
::selection{background:var(--y);color:var(--ink)}
:focus-visible{outline:3px solid var(--b);outline-offset:3px}

.app{display:flex;min-height:100vh}

/* ---------- sidebar ---------- */
.sidebar{width:304px;flex-shrink:0;background:linear-gradient(180deg,var(--side),var(--side-2));color:var(--sideTxt);display:flex;flex-direction:column;
  position:sticky;top:0;height:100vh;border-right:4px solid var(--line);padding-top:env(safe-area-inset-top,0px)}
.sidebar-head{display:flex;align-items:center;gap:12px;padding:22px 20px 16px}
.logo-mark{background-image:var(--logo-data);background-size:cover;background-position:center;display:inline-block;flex-shrink:0;border-radius:12px;border:3px solid #fff}
.sidebar-head .logo-mark{width:44px;height:44px}
.brand{display:flex;flex-direction:column;line-height:1.2}
.brand strong{color:#fff;font-size:1.05rem;font-weight:800}
.brand span{color:var(--y);font-size:.76rem;font-weight:700}
.sidebar-search{padding:0 16px 12px}
.sidebar-search input{width:100%;padding:10px 14px;border-radius:12px;border:3px solid #fff;background:rgba(255,255,255,.08);color:#fff;font:inherit;font-size:.88rem;font-weight:500}
.sidebar-search input::placeholder{color:#b6b0ee}
.sidebar-search input:focus{outline:0;background:#fff;color:var(--ink);box-shadow:3px 3px 0 var(--p)}
.sidebar-nav{flex:1;overflow-y:auto;padding:4px 12px 12px;scrollbar-width:thin;scrollbar-color:var(--p) transparent}
.sidebar-nav::-webkit-scrollbar{width:7px}.sidebar-nav::-webkit-scrollbar-thumb{background:var(--p);border-radius:7px}

.nav-link,.nav-group summary{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:12px;color:var(--sideTxt);font-size:.88rem;font-weight:700;margin-bottom:3px;border:2px solid transparent;transition:background .15s,transform .15s}
.nav-link:hover,.nav-group summary:hover{background:rgba(255,255,255,.1);text-decoration:none;transform:translateX(3px)}
.nav-link.active{background:var(--y);color:var(--ink);border-color:#fff}
.nav-num{width:26px;height:26px;border-radius:8px;background:rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:800;flex-shrink:0;color:#fff;font-family:var(--d)}
.nav-link.active .nav-num{background:var(--p);color:#fff;transform:rotate(-6deg)}
.nav-group{margin-bottom:2px}
.nav-group summary{list-style:none;cursor:pointer}
.nav-group summary::-webkit-details-marker{display:none}
.nav-group[open]>summary{color:#fff}
.nav-group summary::after{content:'›';margin-left:auto;transform:rotate(90deg);transition:transform .18s;color:var(--y);font-size:1.1rem;font-weight:800}
.nav-group[open]>summary::after{transform:rotate(-90deg)}
.nav-group ul{list-style:none;margin:2px 0 6px 20px;padding:0 0 0 14px;border-left:3px dashed rgba(255,255,255,.3)}
.nav-group ul li a{display:block;padding:6px 10px;font-size:.8rem;color:#c7c2f5;border-radius:9px;font-weight:500}
.nav-group ul li a:hover{color:#fff;background:rgba(255,255,255,.08);text-decoration:none}
.nav-group ul li a.active{background:var(--y);color:var(--ink);font-weight:700}

.sidebar-foot{padding:14px 16px;border-top:3px solid rgba(255,255,255,.2);display:grid;gap:10px}
.side-link,.theme-toggle{display:flex;align-items:center;justify-content:center;gap:8px;padding:10px;border-radius:12px;border:3px solid #fff;font:inherit;font-size:.85rem;font-weight:700;cursor:pointer;transition:transform .15s,box-shadow .15s}
.side-link{background:var(--y);color:var(--ink);box-shadow:3px 3px 0 var(--p)}
.theme-toggle{background:transparent;color:#fff}
.side-link:hover,.theme-toggle:hover{transform:translate(-2px,-2px);text-decoration:none}
.side-link:hover{box-shadow:5px 5px 0 var(--p)}.theme-toggle:hover{background:rgba(255,255,255,.1)}

.menu-toggle{display:none;position:fixed;top:calc(16px + env(safe-area-inset-top,0px));left:14px;z-index:60;width:46px;height:46px;border-radius:13px;border:3px solid var(--ink);background:var(--y);color:var(--ink);font-size:1.2rem;box-shadow:4px 4px 0 var(--ink);cursor:pointer}
.overlay{display:none;position:fixed;inset:0;background:rgba(10,6,32,.6);z-index:40}

/* ---------- konten ---------- */
.content{flex:1;min-width:0;position:relative;padding-inline:clamp(14px,3vw,44px)}
.progress{margin-inline:calc(-1*clamp(14px,3vw,44px))}
.progress{position:sticky;top:0;height:7px;width:0;z-index:50;transition:width .1s;border-bottom:2px solid var(--ink);
  background:repeating-linear-gradient(90deg,var(--p) 0 14px,var(--y) 14px 28px,var(--m) 28px 42px,var(--b) 42px 56px)}

.hero{position:relative;overflow:hidden;max-width:900px;margin:28px auto 0;padding:clamp(28px,4.5vw,52px);background:var(--y);color:var(--ink);
  border:3px solid var(--line);border-radius:28px;box-shadow:8px 8px 0 var(--line)}
.hero::after{content:'▲ ● ✕ ■';position:absolute;right:22px;top:14px;font-family:var(--d);font-weight:800;font-size:1.5rem;letter-spacing:.35em;color:var(--p);-webkit-text-stroke:1.5px var(--ink);transform:rotate(6deg);pointer-events:none}
.hero-top{display:flex;align-items:center;gap:14px;margin-bottom:22px}
.hero-top .logo-mark{width:54px;height:54px;border-color:var(--ink)}
.hero-top .kicker{display:inline-block;background:var(--m);color:var(--ink);border:3px solid var(--ink);border-radius:99px;padding:5px 14px;font-size:.8rem;font-weight:700;box-shadow:3px 3px 0 var(--ink);transform:rotate(-1.5deg)}
.hero-top .kicker strong{color:var(--ink)}
.hero h1{font-size:clamp(1.9rem,4.4vw,3.2rem);font-weight:800;margin:0 0 14px;max-width:760px;line-height:1.08;letter-spacing:-.02em}
.hero p{font-size:1.05rem;max-width:640px;margin:0 0 24px;color:var(--ink)}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px}
.pill{display:flex;align-items:center;gap:7px;padding:7px 14px;border-radius:99px;background:#fff;color:var(--ink);border:3px solid var(--ink);font-size:.82rem;font-weight:700;box-shadow:3px 3px 0 var(--ink)}
.pill:nth-child(2){transform:rotate(1.5deg)}.pill:nth-child(3){transform:rotate(-1deg)}

.doc{max-width:900px;margin:32px auto 0;padding:clamp(22px,4vw,50px);background:var(--surf);border:3px solid var(--line);border-radius:26px;box-shadow:8px 8px 0 var(--line)}
.doc h2{font-size:clamp(1.4rem,2.6vw,1.8rem);font-weight:800;margin:56px 0 10px;padding-top:6px;letter-spacing:-.02em;scroll-margin-top:20px;display:flex;align-items:flex-start;gap:14px;line-height:1.2}
.doc h2:first-of-type{margin-top:0}
.doc h2::before{content:attr(data-num);flex-shrink:0;width:46px;height:46px;border-radius:14px;background:var(--p);color:#fff;border:3px solid var(--line);box-shadow:3px 3px 0 var(--line);font-family:var(--d);font-size:1rem;font-weight:800;display:flex;align-items:center;justify-content:center;transform:rotate(-5deg)}
.doc h2:nth-of-type(3n+2)::before{background:var(--b)}.doc h2:nth-of-type(3n)::before{background:var(--m);color:var(--ink)}
.doc h3{font-size:1.18rem;font-weight:800;margin:34px 0 10px;scroll-margin-top:20px;padding-bottom:6px;border-bottom:3px dashed var(--line)}
.doc h3::before{content:'';display:inline-block;width:11px;height:11px;border-radius:3px;background:var(--y);border:2px solid var(--line);margin-right:10px;transform:rotate(12deg)}
.doc p{margin:0 0 14px;color:var(--txt)}
.doc ul,.doc ol{padding-left:24px;margin:0 0 18px;color:var(--txt)}
.doc li{margin-bottom:7px}.doc li::marker{color:var(--p);font-weight:800}
.doc strong{font-weight:700}
.doc hr{border:0;border-top:4px dotted var(--line);margin:44px 0;opacity:.5}
.doc code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.88em;padding:2px 8px;background:var(--surf2);border:2px solid var(--line);border-radius:8px}

.doc table{width:100%;border-collapse:separate;border-spacing:0;margin:0 0 22px;font-size:.92rem;border:3px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:4px 4px 0 var(--line)}
.doc thead th{background:var(--y);color:var(--ink);text-align:left;padding:11px 14px;font-family:var(--d);font-weight:800;border-bottom:3px solid var(--line)}
.doc td{padding:11px 14px;border-bottom:2px dashed rgba(127,120,190,.45);color:var(--txt);vertical-align:top}
.doc tr:last-child td{border-bottom:0}
.doc tbody tr:hover{background:var(--surf2)}
.doc table{display:block;overflow-x:auto}
@media(min-width:700px){.doc table{display:table}}

.callout{display:flex;gap:14px;padding:16px 18px;border-radius:18px;margin:0 0 20px;border:3px solid var(--line);box-shadow:4px 4px 0 var(--line)}
.callout-icon{font-size:1.4rem;line-height:1.3}
.callout-body{font-size:.95rem;color:var(--txt);line-height:1.6}
.callout-warn{background:var(--warn)}.callout-info{background:var(--info)}

.site-footer{display:flex;align-items:center;gap:12px;flex-wrap:wrap;max-width:900px;margin:30px auto 0;padding:26px 20px 60px;font-size:.88rem;font-weight:700;color:var(--txt)}
.site-footer .logo-mark{width:30px;height:30px;border-radius:9px;border:2px solid var(--line)}

.to-top{position:fixed;right:22px;bottom:calc(22px + env(safe-area-inset-bottom,0px));width:48px;height:48px;border-radius:50%;background:var(--p);color:#fff;border:3px solid var(--ink);font-size:1.15rem;font-weight:800;cursor:pointer;box-shadow:4px 4px 0 var(--ink);opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:45}
.to-top.show{opacity:1;pointer-events:auto}.to-top:hover{transform:translate(-2px,-2px)}

@media (max-width:900px){
  .sidebar{position:fixed;left:0;top:0;z-index:55;transform:translateX(-104%);transition:transform .25s ease;width:290px}
  .sidebar.open{transform:translateX(0)}
  .overlay.show{display:block}
  .menu-toggle{display:block}
  .hero{margin-top:82px}
  .doc{margin-top:26px}
  .hero::after{font-size:1.1rem}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}}
@media(max-width:600px){.hero::after{display:none}}