/* ===== Market Mural — style ===== */
:root{
  --bg:#f4f4f5; --card:#ffffff; --ink:#18181b; --muted:#71717a;
  --line:#e4e4e7; --accent:#111111; --accent-ink:#ffffff;
  --brand:#8a6d3b; --ok:#16a34a; --err:#dc2626; --radius:14px;
  --shadow:0 1px 3px rgba(0,0,0,.06),0 8px 24px rgba(0,0,0,.05);
}
*{box-sizing:border-box}
body{
  margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.5;font-size:15px;
}
a{color:inherit}
.muted{color:var(--muted)}
.small{font-size:13px}
code{background:#f1f1f2;padding:1px 6px;border-radius:6px;font-size:13px}

/* layout */
.page-center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.container{max-width:1100px;margin:0 auto;padding:24px 20px}
.container-narrow{max-width:560px;margin:0 auto;padding:24px 20px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:760px){.grid-2{grid-template-columns:1fr}}

/* topbar */
.topbar{background:var(--card);border-bottom:1px solid var(--line)}
.topbar .inner{max-width:1100px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:700;font-size:18px;letter-spacing:-.2px}
.brand small{display:block;font-weight:400;font-size:12px;color:var(--muted)}
.nav a{margin-left:18px;color:var(--muted);text-decoration:none;font-size:14px}
.nav a:hover,.nav a.active{color:var(--ink)}

/* card */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:26px}
.card h1{font-size:22px;margin:0 0 4px;text-align:center}
.card-head{text-align:center;margin-bottom:18px}
.card-head h2{margin:0 0 2px;font-size:20px}
.card-head p{margin:0;color:var(--muted);font-size:14px}
.install-card{max-width:440px;width:100%}
.install-list{color:var(--muted);font-size:14px;padding-left:20px}

/* form */
label.field{display:block;margin-bottom:14px}
label.field .lbl{display:block;font-size:14px;color:var(--brand);margin-bottom:6px;font-weight:500}
input[type=text],input[type=number],input[type=password],select,textarea{
  width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;
  font-size:15px;background:#fff;color:var(--ink);font-family:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:#a1a1aa;box-shadow:0 0 0 3px rgba(0,0,0,.04)}
select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2371717a' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;padding-right:34px}

/* buttons */
.btn{display:inline-block;padding:11px 18px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink);text-decoration:none;font-size:14px;cursor:pointer;
  text-align:center;font-family:inherit;transition:.15s}
.btn:hover{background:#fafafa}
.btn-primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:600}
.btn-primary:hover{background:#000}
.btn-block{display:block;width:100%;margin-top:10px}
.btn-sm{padding:7px 12px;font-size:13px}
.btn-danger{color:var(--err);border-color:#f3c6c6}
.btn-danger:hover{background:#fef2f2}

/* result */
.result-table{width:100%;border-collapse:collapse;margin:6px 0 16px}
.result-table td{padding:9px 0;border-bottom:1px solid var(--line);font-size:14px}
.result-table td:last-child{text-align:right;font-weight:600}
.result-table tr:last-child td{border-bottom:none}
.pred-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:8px 0 16px}
.pred-box{background:#fafafa;border:1px solid var(--line);border-radius:12px;padding:16px;text-align:center}
.pred-box.best{border-color:var(--accent);box-shadow:0 0 0 2px rgba(0,0,0,.06)}
.pred-box .plabel{font-size:13px;color:var(--muted);margin-bottom:4px}
.pred-box .pval{font-size:22px;font-weight:700;letter-spacing:-.5px}
.pred-box .badge{display:inline-block;margin-top:6px;font-size:11px;background:var(--accent);
  color:#fff;padding:2px 8px;border-radius:20px}

/* history */
.hist-item{display:flex;justify-content:space-between;align-items:center;
  border:1px solid var(--line);border-radius:12px;padding:13px 15px;margin-bottom:10px}
.hist-item .h-main{font-size:14px;font-weight:600}
.hist-item .h-sub{font-size:13px;color:var(--brand)}
.hist-item .h-price{font-weight:700;font-size:15px;white-space:nowrap}

/* table (admin) */
table.data{width:100%;border-collapse:collapse;font-size:14px;background:#fff}
table.data th,table.data td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left}
table.data th{background:#fafafa;font-weight:600;color:var(--muted);font-size:13px}
table.data tr:hover td{background:#fafafa}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px}

/* metrics */
.metric-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:20px}
.metric{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px}
.metric .m-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.metric .m-name{font-weight:700}
.metric .m-badge{font-size:11px;background:var(--ok);color:#fff;padding:2px 8px;border-radius:20px}
.metric .m-row{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);padding:3px 0}
.metric .m-row b{color:var(--ink)}

/* alerts / steps */
.alert{padding:11px 14px;border-radius:10px;margin:14px 0;font-size:14px}
.alert-success{background:#f0fdf4;color:#166534;border:1px solid #bbf7d0}
.alert-error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}
.step-row{display:flex;gap:12px;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--line)}
.step-badge{width:22px;height:22px;border-radius:50%;display:inline-flex;align-items:center;
  justify-content:center;color:#fff;font-size:13px;flex:0 0 auto}
.step-row.ok .step-badge{background:var(--ok)}
.step-row.err .step-badge{background:var(--err)}

/* misc */
.page-title{font-size:22px;margin:0 0 4px}
.page-sub{color:var(--muted);margin:0 0 20px}
.flex-between{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.empty{text-align:center;color:var(--muted);padding:40px 0}
.footer{text-align:center;color:var(--muted);font-size:13px;padding:24px}
.tag{display:inline-block;font-size:12px;padding:2px 8px;border-radius:20px;background:#f1f1f2;color:var(--muted)}

/* ============================================================
   LANDING / COMPANY PROFILE  (client-facing)
   ============================================================ */
:root{--ink2:#27272a;--creme:#faf8f5;--grad:linear-gradient(120deg,#ff6a88,#8a4dff 55%,#3a7bd5);}
html{scroll-behavior:smooth}

/* sticky header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.site-header .inner{max-width:1140px;margin:0 auto;padding:12px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink)}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:20px;box-shadow:0 6px 16px rgba(138,77,255,.3)}
.brand-logo{width:40px;height:40px;display:block;border-radius:11px;box-shadow:0 6px 16px rgba(138,77,255,.28)}
.brand-text{font-weight:800;font-size:17px;line-height:1.15;letter-spacing:-.3px}
.brand-text small{display:block;font-weight:500;font-size:11px;color:var(--muted);letter-spacing:0}
.site-nav{display:flex;align-items:center;gap:22px}
.site-nav a{color:var(--ink2);text-decoration:none;font-size:14.5px;font-weight:500;transition:.15s}
.site-nav a:hover,.site-nav a.active{color:#8a4dff}
.nav-cta{color:#fff !important}
.nav-toggle,.nav-burger{display:none}

/* section */
.section{padding:78px 0}
.section-alt{background:var(--creme)}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:1.5px;
  text-transform:uppercase;color:#8a4dff;margin-bottom:12px}
.section-head{text-align:center;max-width:640px;margin:0 auto 46px}
.section-head h2,.section h2{font-size:34px;line-height:1.15;letter-spacing:-.8px;margin:0 0 12px}
.section-head p{color:var(--muted);font-size:16px;margin:0}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.center{text-align:center}
.align-center{align-items:center}

/* buttons extra */
.btn-lg{padding:14px 26px;font-size:15.5px;border-radius:12px}
.btn-ghost{background:transparent;border:1px solid var(--line)}
.btn-ghost:hover{background:#fff;border-color:#c4b5fd}
.btn-light{background:#fff;color:var(--ink);border-color:#fff}
.btn-light:hover{background:#f4f4f5}
.btn-ghost-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5)}
.btn-ghost-light:hover{background:rgba(255,255,255,.12)}

/* hero */
.hero{position:relative;overflow:hidden;
  background:radial-gradient(1200px 500px at 80% -10%,#efe6ff 0,transparent 60%),
             radial-gradient(900px 500px at 0% 0%,#ffe9ef 0,transparent 55%),#fff}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
  padding-top:70px;padding-bottom:80px}
.hero-copy h1{font-size:50px;line-height:1.06;letter-spacing:-1.5px;margin:6px 0 18px}
.hero-copy p{font-size:17.5px;color:#52525b;max-width:520px;margin:0 0 28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:26px}
.hero-trust{display:flex;gap:12px;flex-wrap:wrap;align-items:center;color:var(--muted);font-size:13.5px}
.hero-art{position:relative;height:420px}
.art-tile{position:absolute;border-radius:20px;box-shadow:0 20px 50px rgba(0,0,0,.14)}
.art-tile.t1{width:56%;height:58%;left:0;top:4%;background:linear-gradient(135deg,#ff9a8b,#ff6a88)}
.art-tile.t2{width:40%;height:46%;right:2%;top:0;background:linear-gradient(135deg,#654ea3,#eaafc8)}
.art-tile.t3{width:44%;height:44%;left:8%;bottom:0;background:linear-gradient(135deg,#0ba360,#3cba92)}
.art-tile.t4{width:46%;height:50%;right:0;bottom:2%;background:linear-gradient(135deg,#00c6ff,#0072ff)}
.art-tile img{width:100%;height:100%;object-fit:cover;border-radius:20px;display:block}

/* stats */
.stats-bar{background:var(--ink);color:#fff;padding:34px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat b{display:block;font-size:36px;letter-spacing:-1px;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{color:#a1a1aa;font-size:14px}

/* about */
.about-visual{position:relative;height:360px}
.about-img{width:100%;height:100%;object-fit:cover;border-radius:28px;
  box-shadow:0 24px 60px rgba(138,77,255,.28);display:block}
.about-badge{position:absolute;right:-10px;bottom:24px;background:#fff;border-radius:14px;
  padding:12px 18px;font-weight:700;box-shadow:var(--shadow)}
.check-list{list-style:none;padding:0;margin:20px 0 26px}
.check-list li{position:relative;padding-left:30px;margin-bottom:11px;font-size:15.5px}
.check-list li::before{content:"\2713";position:absolute;left:0;top:0;width:20px;height:20px;
  background:var(--grad);color:#fff;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:700}

/* cards grid */
.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.service-card,.why-card,.testi-card,.step-card{background:#fff;border:1px solid var(--line);
  border-radius:16px;padding:26px;transition:.2s}
.service-card:hover,.why-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#e0d4ff}
.service-ico,.why-ico{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  font-size:26px;background:linear-gradient(135deg,#f3ecff,#ffe9ef);margin-bottom:16px}
.service-card h3,.why-card h3,.step-card h3{font-size:18px;margin:0 0 8px}
.service-card p,.why-card p,.step-card p{color:var(--muted);font-size:14.5px;margin:0}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.gallery-item{position:relative;height:230px;border-radius:16px;overflow:hidden;margin:0;
  display:flex;align-items:flex-end;box-shadow:0 10px 30px rgba(0,0,0,.1)}
.gallery-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease}
.gallery-item:hover .gallery-img{transform:scale(1.06)}
.gallery-item figcaption{position:relative;z-index:2;width:100%;padding:16px;color:#fff;
  background:linear-gradient(to top,rgba(0,0,0,.5),transparent);display:flex;justify-content:space-between;align-items:center}
.g-kat{font-weight:700;font-size:15px}
.g-lok{font-size:12.5px;opacity:.9}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step-card{border-top:3px solid #8a4dff}
.step-num{font-size:30px;font-weight:800;background:var(--grad);-webkit-background-clip:text;
  background-clip:text;color:transparent;display:block;margin-bottom:8px}

/* testimoni */
.testi-card blockquote{margin:10px 0 16px;font-size:15px;color:var(--ink2);line-height:1.6}
.testi-stars{color:#f5a623;letter-spacing:2px}
.testi-card figcaption b{display:block}
.testi-card figcaption span{color:var(--muted);font-size:13px}

/* CTA band */
.cta-band{background:var(--grad);color:#fff;padding:56px 0}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.cta-band h2{font-size:30px;margin:0 0 8px;letter-spacing:-.6px}
.cta-band p{margin:0;opacity:.92;font-size:16px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* page banner */
.page-banner{background:radial-gradient(900px 300px at 70% -40%,#efe6ff 0,transparent 60%),var(--ink);
  color:#fff;padding:56px 0 70px;text-align:center}
.page-banner h1{font-size:32px;margin:6px 0 10px;letter-spacing:-.8px}
.page-banner p{color:#c4c4cc;max-width:560px;margin:0 auto;font-size:15.5px}
.page-banner .eyebrow{color:#c9a8ff}

/* footer */
.site-footer{background:#0f0f11;color:#d4d4d8;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:36px}
.site-footer h4{color:#fff;font-size:14px;margin:0 0 14px;letter-spacing:.3px}
.site-footer a{display:block;color:#a1a1aa;text-decoration:none;font-size:14px;margin-bottom:9px;transition:.15s}
.site-footer a:hover{color:#fff}
.footer-brand{margin-bottom:12px}.footer-brand .brand-text{color:#fff}
.footer-bottom{max-width:1140px;margin:40px auto 0;padding:18px 20px;border-top:1px solid #26262b;
  display:flex;justify-content:space-between;align-items:center;font-size:13px;color:#71717a}
.footer-bottom a{color:#71717a;text-decoration:none}.footer-bottom a:hover{color:#fff}

/* responsive */
@media(max-width:900px){
  .hero-inner,.grid-2{grid-template-columns:1fr}
  .hero-art{display:none}
  .cards-grid,.gallery,.stats-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .hero-copy h1{font-size:38px}
  .section h2,.section-head h2{font-size:28px}
}
@media(max-width:640px){
  .cards-grid,.gallery,.steps{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:26px}
  .footer-grid{grid-template-columns:1fr}
  .nav-burger{display:flex;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
  .nav-burger span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}
  .site-nav{position:absolute;top:63px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;padding:8px 16px 16px;display:none;box-shadow:var(--shadow)}
  .site-nav a{padding:12px 4px;border-bottom:1px solid var(--line)}
  .nav-cta{margin-top:10px;text-align:center}
  .nav-toggle:checked ~ .site-nav{display:flex}
  .hero-copy h1{font-size:32px}
  .cta-inner{flex-direction:column;text-align:center}
}

/* ============================================================
   PENJELASAN ALGORITMA (explainability) — halaman estimasi
   ============================================================ */
.xcard{margin-top:18px;padding:0;overflow:hidden}
.xsummary{list-style:none;cursor:pointer;padding:18px 22px;display:flex;justify-content:space-between;
  align-items:center;font-size:15px;background:linear-gradient(120deg,#faf5ff,#fdf2f6)}
.xsummary::-webkit-details-marker{display:none}
.xsummary b{color:#8a4dff}
.xsummary .chev{transition:.2s;color:#8a4dff}
details[open] .xsummary .chev{transform:rotate(180deg)}
.xstep{padding:20px 22px;border-top:1px solid var(--line)}
.xstep-head{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px}
.xnum{flex:0 0 auto;width:28px;height:28px;border-radius:50%;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:14px}
.xstep-head h4{margin:2px 0 4px;font-size:16px}
.xtable{width:100%;border-collapse:collapse;font-size:13.5px}
.xtable th,.xtable td{padding:9px 11px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.xtable th{background:#fafafa;font-size:12px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.4px}
.norm-bar{height:7px;background:#eee;border-radius:5px;overflow:hidden;margin-bottom:3px;min-width:70px}
.norm-bar span{display:block;height:100%;background:var(--grad)}
.xtable.compare .winner{background:#f4ecff;font-weight:700;color:#6d28d9}
.xtable.compare th.winner{color:#6d28d9}

.algo-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.algo-box{border:1px solid var(--line);border-radius:14px;padding:16px;background:#fff}
.algo-box.hl{border-color:#c9a8ff;box-shadow:0 0 0 2px rgba(138,77,255,.12)}
.algo-title{font-weight:700;margin-bottom:6px}
.algo-box .small{font-size:13px}

.net-diagram{display:flex;align-items:center;gap:6px;justify-content:center;flex-wrap:wrap;
  background:#faf7ff;border-radius:12px;padding:14px 8px;margin:10px 0}
.net-layer{display:flex;flex-direction:column;align-items:center;gap:4px}
.net-layer small{font-size:10px;color:var(--muted)}
.net-dot{width:9px;height:9px;border-radius:50%;background:#8a4dff;opacity:.85}
.net-arrow{color:#c4b5fd;font-size:14px}

.formula{background:#0f0f11;color:#e4e4e7;border-radius:10px;padding:12px 14px;margin-top:10px;
  font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.8;overflow-x:auto}
.formula .hl-price{color:#7dd3a8}
.formula sub{font-size:9px}
.hl-price{color:#6d28d9}

.histo{display:flex;align-items:flex-end;gap:3px;height:70px;background:#faf7ff;border-radius:10px;padding:8px}
.histo-bar{flex:1;background:var(--grad);border-radius:3px 3px 0 0;min-height:4px}
.histo-legend{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin:6px 2px 0}
.xconcl{margin-top:14px;background:#f4ecff;border:1px solid #e0d4ff;border-radius:12px;
  padding:13px 15px;font-size:13.5px;line-height:1.6}
@media(max-width:640px){.algo-grid{grid-template-columns:1fr}}

/* worked calculation panel (dikaitkan dg hasil prediksi) */
.worked{border:1px solid #e0d4ff;background:#faf7ff;border-radius:12px;padding:16px 18px;margin-top:16px}
.worked h4{margin:0 0 8px;font-size:15px;color:#4c1d95}
.worked code{background:#fff;border:1px solid var(--line);padding:2px 7px;border-radius:6px;font-size:12px}
.wgrid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:10px}
.wt{display:block;margin:4px 0;font-size:13.5px}
.calc-table{width:100%;border-collapse:collapse;font-size:12px;background:#fff}
.calc-table th,.calc-table td{border:1px solid var(--line);padding:4px 7px;text-align:center}
.calc-table th{background:#faf7ff;color:var(--muted);font-size:10.5px;text-transform:none}
.calc-table .sumrow{background:#f4ecff;font-weight:600}
.calc-table .subrow{background:#faf7ff;color:#6b7280}
.calc-table .subrow td{border-top:1px dashed #d8c9ff}
.calc-table .active-row td{background:#eafaf0;font-weight:600;color:#166534}
.tree-chips{display:flex;flex-wrap:wrap;gap:5px;margin:8px 0}
.chip{background:#fff;border:1px solid var(--line);border-radius:20px;padding:3px 10px;font-size:11.5px;white-space:nowrap}
.chip-muted{color:var(--muted);background:#f7f7fb}
@media(max-width:640px){.wgrid{grid-template-columns:1fr}}

/* recap + langkah rumus yang lebih jelas */
.recap{background:linear-gradient(120deg,#faf5ff,#fdf2f6);border:1px solid #e9e3ff;
  border-radius:12px;padding:14px 18px;margin:2px 0 4px}
.recap p{margin:6px 0}
.recap-eq{background:#0f0f11;color:#f4ecff;border-radius:8px;padding:12px 14px;margin:8px 0;
  text-align:center;font-family:ui-monospace,Consolas,Menlo,monospace;font-size:13px;font-weight:600}
.formula-inline{background:#f4ecff;border:1px dashed #c9a8ff;border-radius:8px;padding:8px 10px;
  margin:8px 0;text-align:center;font-family:ui-monospace,Consolas,Menlo,monospace;font-size:12px;color:#4c1d95}
.skor-line{background:#f4ecff;border-radius:8px;padding:7px 10px;margin:8px 0 0;text-align:center;
  color:#4c1d95;font-size:14px}
.denorm-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:640px){.denorm-grid{grid-template-columns:1fr}}