/* CFrouter — Promo DeepSeek V4 | black doff + orange */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0a0a0a; --bg2:#0f0f0f; --surface:#151515; --surface2:#1b1b1b;
  --border:#2e2e2e; --border2:#3d3d3d; --text:#f2f2f2; --muted:#8a8a8a; --muted2:#adadad;
  --accent:#ff6b00; --accent2:#ff8c1a; --accent3:#ff4500;
  --glow:rgba(255,107,0,.14); --green:#10b981;
  --fh:'Space Grotesk',system-ui,sans-serif; --fb:'Inter',system-ui,sans-serif; --fm:'JetBrains Mono',ui-monospace,monospace;
  --max:1160px; --r:14px;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--text);font-family:var(--fb);font-size:16px;line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--fh);line-height:1.14;letter-spacing:-.02em;font-weight:700}
code{font-family:var(--fm);font-size:.88em}
img{max-width:100%;height:auto}
::selection{background:var(--accent);color:#0a0a0a}
.container{max-width:var(--max);margin:0 auto;padding:0 22px}
.container-narrow{max-width:820px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--accent);color:#0a0a0a;padding:10px 16px;z-index:200;border-radius:0 0 8px 0;font-weight:600}
.skip-link:focus{left:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

/* ── nav ── */
#navbar{position:fixed;inset:0 0 auto 0;z-index:100;transition:background .3s,border-color .3s,backdrop-filter .3s;border-bottom:1px solid transparent}
#navbar.scrolled{background:rgba(10,10,10,.78);backdrop-filter:blur(22px) saturate(180%);-webkit-backdrop-filter:blur(22px) saturate(180%);border-bottom-color:var(--border)}
.nav-container{max-width:var(--max);margin:0 auto;padding:14px 22px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:inline-flex;align-items:center;gap:10px;font-family:var(--fh);font-weight:700;font-size:19px;letter-spacing:-.02em}
.logo-mark{width:32px;height:32px;display:grid;place-items:center;border-radius:9px;background:linear-gradient(135deg,var(--accent3),var(--accent2));color:#0a0a0a;box-shadow:0 6px 20px rgba(255,107,0,.28)}
.logo-mark svg{width:19px;height:19px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links>a{font-size:14.5px;color:var(--muted2);font-weight:500;position:relative;transition:color .22s}
.nav-links>a:not(.nav-cta)::after{content:'';position:absolute;left:0;right:100%;bottom:-5px;height:1.5px;background:var(--accent);transition:right .25s}
.nav-links>a:hover{color:var(--text)}
.nav-links>a:not(.nav-cta):hover::after{right:0}
.nav-cta{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#0a0a0a!important;padding:9px 18px;border-radius:10px;font-weight:600;font-size:14px;box-shadow:0 6px 22px rgba(255,107,0,.24);transition:transform .22s,box-shadow .22s}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(255,107,0,.36)}
.mobile-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.mobile-toggle span{width:23px;height:2px;background:var(--text);border-radius:2px;transition:transform .28s,opacity .2s}
.mobile-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.mobile-toggle.open span:nth-child(2){opacity:0}
.mobile-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ── buttons ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--fb);font-weight:600;font-size:15px;padding:13px 26px;border-radius:12px;border:1px solid transparent;cursor:pointer;transition:transform .22s,box-shadow .22s,background .22s,border-color .22s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#0a0a0a;box-shadow:0 8px 26px rgba(255,107,0,.26)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(255,107,0,.4)}
.btn-ghost{background:rgba(255,255,255,.03);border-color:var(--border2);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:var(--accent);transform:translateY(-2px)}
.btn-outline{background:transparent;border-color:var(--border2);color:var(--text)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.btn-block{width:100%}
.btn-lg{padding:16px 34px;font-size:16.5px}
.btn-arrow{transition:transform .22s}
.btn:hover .btn-arrow{transform:translateX(4px)}

/* ── hero ── */
.hero{position:relative;padding:118px 0 56px;overflow:hidden}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,107,0,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,107,0,.045) 1px,transparent 1px);background-size:58px 58px;mask-image:radial-gradient(ellipse 68% 58% at 50% 32%,#000 30%,transparent 78%);-webkit-mask-image:radial-gradient(ellipse 68% 58% at 50% 32%,#000 30%,transparent 78%)}
.hero-glow{position:absolute;top:-24%;left:50%;transform:translateX(-50%);width:900px;height:560px;background:radial-gradient(ellipse at center,var(--glow),transparent 68%);filter:blur(58px);animation:breathe 7s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:.62}50%{opacity:1}}
.hero-content{position:relative;max-width:900px;margin:0 auto;padding:0 22px;text-align:center}
.hero-badge{display:inline-flex;align-items:center;gap:9px;font-size:12px;font-weight:600;letter-spacing:.1em;padding:7px 15px;border-radius:999px;background:rgba(255,107,0,.08);border:1px solid rgba(255,107,0,.28);color:var(--accent2);margin-bottom:24px;font-family:var(--fm)}
.pulse-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 rgba(255,107,0,.7);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,107,0,.6)}70%{box-shadow:0 0 0 11px rgba(255,107,0,0)}100%{box-shadow:0 0 0 0 rgba(255,107,0,0)}}
.hero h1{font-size:clamp(34px,6.2vw,60px);margin-bottom:20px}
.grad{background:linear-gradient(115deg,var(--accent3),var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.hero-sub{font-size:clamp(15.5px,2.1vw,18.5px);color:var(--muted2);max-width:640px;margin:0 auto 30px}
.hero-sub strong{color:var(--text);font-weight:600}
.hero-cta{display:flex;gap:13px;justify-content:center;flex-wrap:wrap;margin-bottom:28px}
.hero-checks{list-style:none;display:flex;gap:10px 22px;justify-content:center;flex-wrap:wrap;font-size:13.5px;color:var(--muted2);margin-bottom:38px}
.hero-checks li{display:inline-flex;align-items:center;gap:7px}
.hero-checks span{color:var(--green);font-weight:700}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:760px;margin:0 auto}
.stat{background:linear-gradient(160deg,var(--surface),rgba(21,21,21,.4));border:1px solid var(--border);border-radius:var(--r);padding:18px 12px;transition:border-color .25s,transform .25s}
.stat:hover{border-color:rgba(255,107,0,.4);transform:translateY(-3px)}
.stat-value{font-family:var(--fh);font-size:clamp(24px,4vw,32px);font-weight:700;color:var(--text)}
.stat-suffix{font-family:var(--fh);font-size:clamp(15px,2.4vw,19px);font-weight:700;color:var(--accent);margin-left:2px}
.stat-label{display:block;font-size:12px;color:var(--muted);margin-top:5px;line-height:1.4}

/* ── section shell ── */
section{padding:62px 0}
.divider{height:1px;background:linear-gradient(90deg,transparent,rgba(255,107,0,.16),transparent)}
.section-head{text-align:center;max-width:660px;margin:0 auto 36px}
.eyebrow{display:inline-block;font-family:var(--fm);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:12px;font-weight:500}
.section-head h2{font-size:clamp(26px,4.2vw,40px);margin-bottom:12px}
.section-head p{color:var(--muted2);font-size:15.5px}

/* ── promo ── */
.promo-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;align-items:stretch}
.promo-grid-4{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.promo-grid-4 .promo-card{padding:26px 20px}
.promo-grid-4 .promo-price{font-size:38px}
.promo-grid-4 .promo-top h3{font-size:19px}
.promo-grid-4 .promo-list{font-size:13.6px}
.promo-grid-4 .promo-ribbon{font-size:9.5px;padding:4px 10px}
.promo-card{position:relative;background:linear-gradient(165deg,var(--surface),rgba(15,15,15,.6));border:1px solid var(--border);border-radius:18px;padding:30px 26px;transition:transform .3s,border-color .3s,box-shadow .3s;display:flex;flex-direction:column;box-shadow:inset 0 1px 0 rgba(255,255,255,.045)}
.promo-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:0;transition:opacity .3s}
.promo-card:hover{transform:translateY(-5px);border-color:var(--border2);box-shadow:0 18px 44px rgba(0,0,0,.5)}
.promo-card:hover::before{opacity:1}
.promo-card.featured{background:linear-gradient(165deg,#1a1310,rgba(20,16,14,.7));border-color:rgba(255,107,0,.4);box-shadow:0 0 0 1px rgba(255,107,0,.12),0 22px 56px rgba(255,69,0,.16);transform:translateY(-6px)}
.promo-card.featured::before{opacity:1}
.promo-card.featured:hover{transform:translateY(-11px)}
.promo-ribbon{position:absolute;top:16px;right:-1px;background:linear-gradient(135deg,var(--accent3),var(--accent2));color:#0a0a0a;font-size:10.5px;font-weight:700;letter-spacing:.1em;padding:5px 13px;border-radius:8px 0 0 8px;font-family:var(--fm)}
.promo-top{margin-bottom:14px}
.promo-top h3{font-size:22px;margin-bottom:5px}
.promo-tag{font-size:12.5px;color:var(--accent2);font-weight:600;letter-spacing:.02em}
.promo-price{font-family:var(--fh);font-size:44px;font-weight:700;line-height:1;display:flex;align-items:baseline;gap:2px}
.promo-price .cur{font-size:19px;color:var(--muted2);font-weight:600;margin-right:3px}
.promo-price .unit{font-size:26px;color:var(--muted2)}
.promo-rate{font-family:var(--fm);font-size:12px;color:var(--muted);margin:8px 0 20px}
.promo-list{list-style:none;display:grid;gap:10px;margin-bottom:24px;align-content:start;flex:1 1 auto;font-size:14.5px;color:var(--muted2)}
.promo-list li{position:relative;padding-left:24px}
.promo-list li::before{content:'✓';position:absolute;left:0;top:-1px;color:var(--accent);font-weight:700}
.promo-note{text-align:center;color:var(--muted);font-size:14px;margin-top:28px}
.promo-note strong{color:var(--muted2)}

/* ── features ── */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feat-card{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:26px 22px;transition:transform .3s,border-color .3s,background .3s;overflow:hidden;box-shadow:inset 0 1px 0 rgba(255,255,255,.045)}
.feat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:0;transition:opacity .3s}
.feat-card:hover{transform:translateY(-4px);border-color:var(--border2);background:var(--surface2)}
.feat-card:hover::before{opacity:1}
.feat-ico{width:44px;height:44px;display:grid;place-items:center;font-size:21px;color:var(--accent2);border-radius:12px;background:rgba(255,107,0,.09);border:1px solid rgba(255,107,0,.2);margin-bottom:16px}
.feat-ico svg{width:22px;height:22px}
.feat-card h3{font-size:17.5px;margin-bottom:9px}
.feat-card p{font-size:14.2px;color:var(--muted2);line-height:1.6}

/* ── models ── */
.model-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.model-card{background:linear-gradient(160deg,var(--surface),rgba(15,15,15,.55));border:1px solid var(--border);border-radius:18px;padding:28px;transition:transform .3s,border-color .3s;box-shadow:inset 0 1px 0 rgba(255,255,255,.045)}
.model-card:hover{transform:translateY(-4px);border-color:rgba(255,107,0,.34)}
.model-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.model-head h3{font-size:20px}
.chip{font-family:var(--fm);font-size:11px;font-weight:500;padding:4px 10px;border-radius:999px;letter-spacing:.03em}
.chip-green{background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.3);color:var(--green)}
.chip-orange{background:rgba(255,107,0,.1);border:1px solid rgba(255,107,0,.3);color:var(--accent2)}
.model-id{display:inline-block;background:#0d0d0d;border:1px solid var(--border);border-radius:8px;padding:6px 12px;color:var(--accent2);font-size:13.5px;margin-bottom:14px}
.model-card p{font-size:14.5px;color:var(--muted2);margin-bottom:16px}
.model-spec{list-style:none;display:grid;gap:8px;font-size:13.8px;color:var(--muted)}
.model-spec li{position:relative;padding-left:20px}
.model-spec li::before{content:'▸';position:absolute;left:0;color:var(--accent)}
.model-note{text-align:center;color:var(--muted);font-size:14px;margin-top:24px}
.model-note code{color:var(--accent2)}

/* ── steps + code ── */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:34px}
.step{display:flex;gap:14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:22px 20px;transition:border-color .3s,transform .3s}
.step:hover{border-color:var(--border2);transform:translateY(-3px)}
.step-n{flex:0 0 32px;height:32px;display:grid;place-items:center;border-radius:9px;background:rgba(255,107,0,.1);border:1px solid rgba(255,107,0,.28);color:var(--accent);font-family:var(--fh);font-weight:700;font-size:15px}
.step h3{font-size:16.5px;margin-bottom:6px}
.step p{font-size:14px;color:var(--muted2)}
.step p code{background:#0d0d0d;border:1px solid var(--border);border-radius:6px;padding:2px 6px;color:var(--accent2)}
.step a{color:var(--accent2);border-bottom:1px solid rgba(255,140,26,.35)}
.code-wrap{background:#0c0c0c;border:1px solid var(--border);border-radius:16px;overflow:hidden}
.code-tabs{display:flex;gap:4px;padding:10px 12px;background:var(--surface);border-bottom:1px solid var(--border);overflow-x:auto}
.code-tab{background:none;border:1px solid transparent;color:var(--muted);font-family:var(--fm);font-size:12.5px;padding:6px 14px;border-radius:8px;cursor:pointer;transition:color .22s,background .22s,border-color .22s;white-space:nowrap}
.code-tab:hover{color:var(--text)}
.code-tab.active{color:var(--accent);background:rgba(255,107,0,.08);border-color:rgba(255,107,0,.26)}
.code-body{padding:20px 22px;overflow-x:auto}
.code-pane{display:none;font-family:var(--fm);font-size:13.2px;line-height:1.75;color:#d6d6d6;white-space:pre}
.code-pane.active{display:block}
.compat{margin-top:34px;text-align:center}
.compat-title{font-size:13px;color:var(--muted);letter-spacing:.03em;margin-bottom:16px}
.compat-row{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.compat-item{display:inline-flex;align-items:center;gap:9px;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:8px 16px;font-size:13.5px;color:var(--muted2);transition:border-color .25s,transform .25s,color .25s}
.compat-item:hover{border-color:rgba(255,107,0,.35);color:var(--text);transform:translateY(-2px)}
.compat-item img{border-radius:5px;object-fit:contain}

/* ── faq ── */
.faq-list{display:grid;gap:11px}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;transition:border-color .25s}
.faq-item:hover{border-color:var(--border2)}
.faq-item.open{border-color:rgba(255,107,0,.34)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:none;border:0;color:var(--text);font-family:var(--fh);font-weight:600;font-size:15.8px;text-align:left;padding:18px 20px;cursor:pointer;transition:color .22s}
.faq-q:hover{color:var(--accent2)}
.faq-ico{flex:0 0 auto;font-family:var(--fb);font-size:22px;font-weight:400;color:var(--accent);transition:transform .3s;line-height:1}
.faq-item.open .faq-ico{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 20px 19px;font-size:14.6px;color:var(--muted2)}
.faq-a code{background:#0d0d0d;border:1px solid var(--border);border-radius:6px;padding:2px 7px;color:var(--accent2)}
.faq-a a{color:var(--accent2);border-bottom:1px solid rgba(255,140,26,.35)}

/* ── cta ── */
.cta{padding:62px 0 74px}
.cta-box{position:relative;text-align:center;background:linear-gradient(165deg,#18120e,#0d0d0d);border:1px solid rgba(255,107,0,.24);border-radius:22px;padding:52px 28px;overflow:hidden}
.cta-box::before{content:'';position:absolute;top:-50%;left:50%;transform:translateX(-50%);width:620px;height:420px;background:radial-gradient(ellipse at center,rgba(255,107,0,.14),transparent 68%);filter:blur(44px)}
.cta-box>*{position:relative}
.cta-box h2{font-size:clamp(24px,4vw,38px);margin-bottom:12px}
.cta-box p{color:var(--muted2);margin-bottom:26px;font-size:15.6px}
.cta-fine{font-size:12.5px;color:var(--muted);margin:18px 0 0}

/* ── footer ── */
.footer{background:var(--bg2);border-top:1px solid var(--border);padding:48px 0 96px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;margin-bottom:34px}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--muted);max-width:330px}
.footer-endpoint{margin-top:12px!important}
.footer-endpoint code{background:#0d0d0d;border:1px solid var(--border);border-radius:8px;padding:6px 11px;color:var(--accent2);font-size:12.5px;display:inline-block}
.footer-col h3{font-family:var(--fb);font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:14px;font-weight:600}
.footer-col a{display:block;font-size:14.2px;color:var(--muted2);padding:5px 0;transition:color .22s,transform .22s}
.footer-col a:hover{color:var(--accent2);transform:translateX(3px)}
.footer-bottom{border-top:1px solid var(--border);padding-top:20px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.8px;color:var(--muted)}
.footer-dis{max-width:520px;text-align:left}

/* ── fab ── */
.fab{position:fixed;right:20px;bottom:20px;z-index:99;width:52px;height:52px;display:grid;place-items:center;border-radius:50%;background:linear-gradient(135deg,var(--accent3),var(--accent2));color:#0a0a0a;box-shadow:0 10px 28px rgba(255,107,0,.4);transition:transform .25s,box-shadow .25s}
.fab svg{width:25px;height:25px;margin-left:-2px}
.fab:hover{transform:scale(1.09) translateY(-2px);box-shadow:0 14px 36px rgba(255,107,0,.55)}

/* ── reveal (progressive enhancement: default TERLIHAT, animasi hanya kalau JS aktif) ── */
.reveal{opacity:1;transform:none}
.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .68s cubic-bezier(.22,1,.36,1),transform .68s cubic-bezier(.22,1,.36,1)}
.js .reveal.on{opacity:1;transform:none}
@media print{.reveal,.js .reveal{opacity:1!important;transform:none!important}}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  .reveal,.js .reveal{opacity:1!important;transform:none!important}
  html{scroll-behavior:auto}
}

/* ── responsive ── */
@media (max-width:1150px){
  .promo-grid-4{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .promo-grid-4 .promo-card.featured{transform:none}
}
@media (max-width:1000px){
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:26px}
  .footer-brand{grid-column:1/-1}
  .footer-dis{text-align:left}
}
@media (max-width:860px){
  .nav-links{position:fixed;inset:60px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;background:rgba(10,10,10,.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);padding:0 22px;max-height:0;overflow:hidden;transition:max-height .34s ease,padding .34s ease}
  .nav-links.open{max-height:min(72vh,540px);overflow-y:auto;padding:12px 22px 20px}
  .nav-links>a{padding:13px 0;border-bottom:1px solid var(--border);font-size:15.5px}
  .nav-links>a:not(.nav-cta)::after{display:none}
  .nav-cta{text-align:center;margin-top:14px;border-bottom:0!important;padding:13px 18px}
  .mobile-toggle{display:flex}
  .promo-grid,.promo-grid-4,.model-grid,.steps{grid-template-columns:1fr}
  .promo-card.featured{transform:none}
  .promo-card.featured:hover,.promo-card:hover{transform:translateY(-3px)}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
  .hero{padding:100px 0 44px}
  section{padding:48px 0}
  .cta{padding:48px 0 60px}
  .feat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-cta .btn{width:100%}
  .code-body{padding:16px}
  .code-pane{font-size:12.2px}
  .promo-card{padding:26px 22px}
  .cta-box{padding:40px 20px}
  .fab{right:14px;bottom:14px;width:48px;height:48px}
  .fab svg{width:23px;height:23px}
}