/* PITHEAD — arah D · SURVEY: kertas terang + tinta arang + tembaga; gua 3D gelap di dalam bingkai */
:root {
  --paper: #ece6da;
  --paper2: #f6f1e7;
  --paper3: #e2dac9;
  --ink: #1b1814;
  --ink2: #5c564c;
  --ink3: #8a8375;
  --line: #cfc6b4;
  --line2: #b8ae99;
  --copper: #c4552a;
  --copper2: #e07b39;
  --copper-soft: #f3d9c9;
  --brass: #b8862b;
  --brass-soft: #f1e3bd;
  --mint: #2f9e74;
  --mint-soft: #d4ecdf;
  --cave: #0f0c09;
  --cave2: #1d1711;
  --radius: 14px;
  --font: 'Archivo', system-ui, -apple-system, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
input { font: inherit; }
::selection { background: var(--copper); color: var(--paper2); }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.wrap { width: min(1240px, calc(100% - 40px)); margin: 0 auto; }
.k { font: 600 11px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--ink3); }

/* ── nav ── */
.nav {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; gap: 22px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .04em; font-size: 17px; }
.brand .mark { width: 28px; height: 28px; }
.nav .links { display: flex; gap: 18px; font-weight: 600; font-size: 14px; color: var(--ink2); }
.nav .links a.on, .nav .links a:hover { color: var(--ink); }
.nav .sp { flex: 1; }
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--line2); border-radius: 8px; padding: 7px 11px;
  font: 600 12px/1 var(--mono); letter-spacing: .04em; background: var(--paper2);
}
.pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--mint); animation: pulse 1.6s infinite; }
.pill.off .dot { background: var(--ink3); animation: none; }
@keyframes pulse { 0%, 100% { transform: scale(1); opacity: 1 } 50% { transform: scale(.6); opacity: .5 } }
.ico { width: 36px; height: 36px; border: 1px solid var(--line2); border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; background: var(--paper2); }
.ico:hover { border-color: var(--ink); }
.ico svg { width: 16px; height: 16px; fill: currentColor; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--ink); color: var(--paper2); border: 1px solid var(--ink);
  padding: 11px 18px; border-radius: 9px; font-weight: 700; font-size: 14px; letter-spacing: .01em;
  transition: transform .08s, background .15s, box-shadow .15s;
  box-shadow: 0 1px 0 rgba(255,255,255,.25) inset, 0 6px 14px -8px rgba(27,24,20,.6);
}
.btn:hover { background: #2a2620; }
.btn:active { transform: translateY(1px); }
.btn.copper { background: var(--copper); border-color: var(--copper); color: #fff; }
.btn.copper:hover { background: #b24a22; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line2); box-shadow: none; }
.btn.ghost:hover { border-color: var(--ink); }
.btn.big { padding: 15px 24px; font-size: 16px; border-radius: 11px; }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.btn.outline-accent { background: transparent; color: var(--copper); border: 1.5px solid var(--copper); box-shadow: none; }

/* ── frame (jendela gua) ── */
.frame {
  position: relative; background: var(--cave); border-radius: 22px; overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(27,24,20,.6), 0 0 0 1px rgba(27,24,20,.12), 0 0 0 6px var(--paper2), 0 0 0 7px var(--line);
}
.frame canvas { display: block; width: 100%; height: 100%; }
.frame .hud { position: absolute; inset: 0; pointer-events: none; }
.hud .corner { position: absolute; font: 600 11px/1 var(--mono); letter-spacing: .14em; color: rgba(246,241,231,.72); text-transform: uppercase; }
.hud .tl { top: 18px; left: 20px; } .hud .tr { top: 18px; right: 20px; text-align: right; }
.hud .bl { bottom: 18px; left: 20px; } .hud .br { bottom: 18px; right: 20px; text-align: right; }
.hud .corner b { display: block; font: 800 22px/1.1 var(--font); color: #fff; letter-spacing: 0; margin-top: 6px; }
.hud .corner b.num { font-family: var(--mono); font-weight: 700; }
.hud .bevel { position: absolute; inset: 10px; border: 1px solid rgba(246,241,231,.12); border-radius: 14px; }
.hud .tick { position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%); display: flex; gap: 6px; }
.hud .tick i { width: 22px; height: 3px; background: rgba(246,241,231,.25); border-radius: 2px; }
.hud .tick i.on { background: var(--copper2); }

/* ── hero ── */
.hero { padding-top: 34px; }
.hero .top { display: grid; grid-template-columns: 1.15fr .85fr; gap: 34px; align-items: end; margin-bottom: 22px; }
.hero h1 { font-size: clamp(42px, 6.2vw, 84px); line-height: .92; letter-spacing: -.03em; font-weight: 850; font-stretch: 92%; margin: 0 0 18px; }
.hero h1 em { font-style: normal; color: var(--copper); }
.hero .lede { font-size: 18px; color: var(--ink2); max-width: 520px; margin: 0 0 22px; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; }
.card {
  background: var(--paper2); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px;
  box-shadow: 0 1px 0 #fff inset;
}
.card .k { margin-bottom: 10px; }
.cacard .row { display: flex; align-items: center; gap: 10px; margin: 6px 0 12px; }
.cacard .addr { flex: 1; font: 600 13px/1.3 var(--mono); word-break: break-all; color: var(--ink); background: var(--paper); border: 1px dashed var(--line2); padding: 9px 11px; border-radius: 8px; }
.cacard .addr.off { color: var(--ink3); border-style: dashed; }
.cacard .status { display: inline-flex; align-items: center; gap: 7px; font: 700 11px/1 var(--mono); letter-spacing: .12em; padding: 6px 9px; border-radius: 6px; background: var(--brass-soft); color: #6b4f12; }
.cacard .status.live { background: var(--mint-soft); color: #185a40; }
.cacard .status.live:before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--mint); }
.cacard .actions { display: flex; gap: 8px; }
.cacard .actions .btn { flex: 1; padding: 10px 12px; font-size: 13px; }
.cacard small { display: block; color: var(--ink3); font-size: 12px; margin-top: 10px; }
.copy { border: 1px solid var(--line2); background: var(--paper2); border-radius: 7px; width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center; }
.copy svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.copy.ok { color: var(--mint); border-color: var(--mint); }

.scrub { position: relative; height: 240vh; }
.scrub .sticky { position: sticky; top: 76px; height: calc(100vh - 100px); min-height: 480px; }
.scrub .frame { height: 100%; }
.scrub .hint { position: absolute; left: 50%; bottom: -30px; transform: translateX(-50%); font: 600 11px/1 var(--mono); letter-spacing: .14em; color: var(--ink3); text-transform: uppercase; display: flex; align-items: center; gap: 8px; }
.scrub .hint:after { content: ""; width: 1px; height: 26px; background: var(--ink3); animation: drip 1.6s infinite; }
@keyframes drip { 0% { transform: scaleY(0); transform-origin: top } 60% { transform: scaleY(1); transform-origin: top } 61% { transform-origin: bottom } 100% { transform: scaleY(0); transform-origin: bottom } }

/* pita bukti */
.proof { display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper2); margin-top: 48px; overflow: hidden; }
.proof div { padding: 18px 20px; border-right: 1px solid var(--line); }
.proof div:last-child { border-right: 0; }
.proof b { display: block; font: 800 28px/1.1 var(--font); letter-spacing: -.02em; margin-top: 6px; }
.proof b small { font-size: 14px; color: var(--ink3); font-weight: 600; margin-left: 4px; }

/* ── section ── */
section.sec { padding: 92px 0 0; }
.sec-head { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: end; margin-bottom: 34px; }
.sec-head h2 { font-size: clamp(32px, 4vw, 52px); line-height: 1; letter-spacing: -.03em; margin: 8px 0 0; font-weight: 850; font-stretch: 92%; }
.sec-head p { color: var(--ink2); font-size: 17px; margin: 0; max-width: 480px; }

/* langkah ronde */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.step { background: var(--paper2); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 20px 20px; position: relative; min-height: 210px; }
.step .n { font: 700 12px/1 var(--mono); color: var(--copper); letter-spacing: .14em; }
.step h3 { margin: 14px 0 8px; font-size: 20px; letter-spacing: -.02em; }
.step p { margin: 0; color: var(--ink2); font-size: 14.5px; }
.step .t { position: absolute; right: 16px; top: 16px; font: 600 11px/1 var(--mono); color: var(--ink3); background: var(--paper); border: 1px solid var(--line); padding: 5px 7px; border-radius: 6px; }
.step svg { width: 44px; height: 44px; margin-top: 14px; }

/* split vs solo */
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.duo .card { padding: 26px; }
.duo h3 { margin: 10px 0 8px; font-size: 26px; letter-spacing: -.02em; }
.duo p { color: var(--ink2); margin: 0 0 14px; }
.minigrid { display: grid; grid-template-columns: repeat(5, 34px); gap: 5px; margin-top: 12px; }
.minigrid i { height: 34px; border-radius: 6px; background: var(--paper); border: 1px solid var(--line); }
.minigrid i.s { background: var(--brass-soft); border-color: var(--brass); background-image: linear-gradient(45deg, transparent 46%, var(--brass) 46% 54%, transparent 54%), linear-gradient(-45deg, transparent 46%, var(--brass) 46% 54%, transparent 54%); background-size: 60% 60%; background-position: center; background-repeat: no-repeat; }
.minigrid i.w { background: var(--copper); border-color: var(--copper); }

/* tabel */
table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
.tbl th { text-align: left; font: 600 11px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink3); padding: 10px 12px; border-bottom: 1px solid var(--line); }
.tbl td { padding: 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl .tile { display: inline-flex; width: 30px; height: 30px; border-radius: 7px; align-items: center; justify-content: center; font: 700 13px/1 var(--mono); background: var(--copper); color: #fff; }
.tbl .tile.s { background: var(--brass); }
.tbl .muted { color: var(--ink3); }
.tbl td a { color: var(--copper); font-weight: 600; }

/* trust */
.trust { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.trust .card ul { margin: 10px 0 0; padding: 0; list-style: none; }
.trust li { padding: 10px 0; border-bottom: 1px solid var(--line); display: flex; gap: 12px; font-size: 15px; }
.trust li:last-child { border-bottom: 0; }
.trust li:before { content: "■"; color: var(--mint); font-size: 10px; margin-top: 7px; }
.trust .warn li:before { color: var(--copper); }

/* faq */
.faq details { border-bottom: 1px solid var(--line); padding: 16px 0; }
.faq summary { cursor: pointer; font-weight: 700; font-size: 17px; list-style: none; display: flex; justify-content: space-between; }
.faq summary:after { content: "+"; color: var(--copper); font-weight: 400; }
.faq details[open] summary:after { content: "–"; }
.faq p { color: var(--ink2); margin: 10px 0 0; }

/* footer */
footer { margin-top: 100px; border-top: 1px solid var(--line); padding: 34px 0 40px; color: var(--ink3); font-size: 13px; }
footer .wrap { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
footer .sp { flex: 1; }
footer a { color: var(--ink2); font-weight: 600; }

/* ── toast & modal ── */
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(20px); opacity: 0; background: var(--ink); color: var(--paper2); padding: 12px 16px; border-radius: 10px; font-weight: 600; font-size: 14px; z-index: 60; transition: .2s; pointer-events: none; max-width: 90vw; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.modal { position: fixed; inset: 0; background: rgba(27,24,20,.55); display: none; align-items: center; justify-content: center; z-index: 70; padding: 20px; }
.modal.open { display: flex; }
.modal .box { background: var(--paper2); border-radius: 16px; width: min(440px, 100%); padding: 22px; border: 1px solid var(--line); }
.modal h3 { margin: 0 0 6px; font-size: 20px; }
.modal p { color: var(--ink2); margin: 0 0 14px; font-size: 14px; }
.wlist { display: grid; gap: 8px; }
.wlist button { display: flex; align-items: center; gap: 12px; width: 100%; background: var(--paper); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font-weight: 600; text-align: left; }
.wlist button:hover { border-color: var(--ink); }
.wlist img { width: 26px; height: 26px; border-radius: 6px; }
.modal .close { margin-top: 12px; width: 100%; }

@media (max-width: 960px) {
  .hero .top, .sec-head, .duo, .trust { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .proof { grid-template-columns: 1fr 1fr; }
  .proof div { border-bottom: 1px solid var(--line); }
  .proof div:nth-child(even) { border-right: 0; }
  .nav .links { display: none; }
}
@media (max-width: 600px) {
  .wrap { width: calc(100% - 32px); }
  .steps { grid-template-columns: 1fr; }
  .scrub { height: 200vh; }
  .scrub .sticky { height: 68vh; min-height: 420px; }
  .hud .corner b { font-size: 17px; }
  .proof { grid-template-columns: 1fr 1fr; }
  .nav .wrap { gap: 10px; }
  .nav .pill { display: none; }
}

/* rapikan nav & pita bukti di layar kecil */
.nav .btn { white-space: nowrap; }
@media (max-width: 600px) {
  .nav .btn { padding: 9px 12px; font-size: 13px; }
  .brand { font-size: 15px; }
  .proof div:last-child { grid-column: span 2; }
}