/* Rekan Bot landing - red noir. */
:root {
  --merah: #ef233c;
  --aksen: #ef233c; /* dipakai karakter.css (antena saat berpikir) */
  --merah-pendar: rgba(239, 35, 60, 0.5);
  --garis: rgba(255, 255, 255, 0.1);
  --redup: #a1a1aa;
  --redup-2: #71717a;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: #000; color: #fff; font: 400 16px/1.6 Inter, system-ui, sans-serif; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
::selection { background: var(--merah); color: #fff; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
/* Ikon garis; SVG karakter (rk-karakter) punya ukuran & warna sendiri. */
svg:not(.rk-karakter) { width: 1em; height: 1em; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
h1, h2, h3, h4, .merek, .nomor { font-family: Manrope, Inter, sans-serif; }
.merah { color: var(--merah); }
:focus-visible { outline: 2px solid var(--merah); outline-offset: 3px; }

/* Latar */
.latar { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
.latar-gradasi { position: absolute; inset: 0; background: linear-gradient(to bottom, #1a0505, #000); }
.latar-pendar { position: absolute; top: 50%; left: 50%; width: 800px; height: 800px; transform: translate(-50%, -50%); border-radius: 50%; background: rgba(220, 38, 38, 0.05); filter: blur(120px); }
.latar-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px); background-size: 40px 40px; -webkit-mask-image: radial-gradient(circle at center, #000 40%, transparent 80%); mask-image: radial-gradient(circle at center, #000 40%, transparent 80%); }
.bintang { position: absolute; top: 0; left: 0; background: transparent; }
.bintang-1 { width: 1px; height: 1px; animation: bintang 50s linear infinite; box-shadow: 234px 124px #fff, 654px 345px #fff, 876px 12px #fff, 1200px 800px #fff, 400px 1500px #fff, 1800px 200px #fff, 100px 1000px #fff, 900px 1900px #fff, 500px 600px #fff, 1400px 100px #fff, 300px 400px #fff, 1600px 1200px #fff; }
.bintang-2 { width: 2px; height: 2px; animation: bintang 80s linear infinite; box-shadow: 123px 456px #fff, 789px 234px #fff, 456px 890px #fff, 1100px 300px #fff, 200px 1200px #fff, 1500px 500px #fff, 600px 1700px #fff, 1300px 900px #fff; }
@keyframes bintang { to { transform: translateY(-2000px); } }
.kabut-atas { position: fixed; z-index: 40; inset: 0 0 auto 0; height: 120px; pointer-events: none; background: linear-gradient(to bottom, rgba(0,0,0,.8), transparent); backdrop-filter: blur(8px); -webkit-mask-image: linear-gradient(to bottom, #000, transparent); mask-image: linear-gradient(to bottom, #000, transparent); }

/* Navigasi */
.kepala { position: fixed; top: 0; left: 0; width: 100%; z-index: 50; padding: 24px 16px 0; }
.nav { max-width: 1024px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 16px; background: rgba(0,0,0,.6); backdrop-filter: blur(24px); border: 1px solid var(--garis); border-radius: 9999px; padding: 10px 12px 10px 20px; box-shadow: 0 25px 50px -12px rgba(0,0,0,.6); }
.merek { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; letter-spacing: -0.02em; white-space: nowrap; }
.nav-tautan { display: none; gap: 32px; }
.nav-tautan a { font-size: 14px; font-weight: 500; color: var(--redup); transition: color .2s; }
.nav-tautan a:hover { color: #fff; }
.nav-kanan { display: flex; align-items: center; gap: 10px; }
.tombol-bahasa { background: none; border: 1px solid var(--garis); color: var(--redup); border-radius: 9999px; font: 600 12px Inter, sans-serif; padding: 6px 10px; cursor: pointer; }
.tombol-bahasa:hover { color: #fff; border-color: rgba(255,255,255,.25); }
.tombol-nav { position: relative; display: inline-flex; align-items: center; gap: 8px; overflow: hidden; border-radius: 9999px; padding: 9px 18px; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; background: #000; border: 1px solid var(--garis); isolation: isolate; }
.tombol-nav::before { content: ""; position: absolute; inset: -100%; z-index: -2; background: conic-gradient(from 90deg at 50% 50%, transparent 0%, transparent 75%, var(--merah) 100%); animation: putar 3s linear infinite; opacity: 0; transition: opacity .3s; }
.tombol-nav::after { content: ""; position: absolute; inset: 1px; z-index: -1; border-radius: 9999px; background: #000; }
.tombol-nav:hover::before { opacity: 1; }
.tombol-nav svg { transition: transform .2s; }
.tombol-nav:hover svg { transform: translateX(2px); }
@keyframes putar { to { transform: rotate(360deg); } }

main { position: relative; z-index: 10; }

/* Hero */
.hero { min-height: 100dvh; display: flex; flex-direction: column; align-items: center; padding: 150px 24px 96px; text-align: center; }
.lencana { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; border-radius: 9999px; background: rgba(255,255,255,.05); border: 1px solid var(--garis); backdrop-filter: blur(12px); margin-bottom: 32px; font: 500 12px Manrope, sans-serif; color: rgba(254, 226, 226, .9); letter-spacing: .02em; }
.lencana svg { color: #f87171; }
.titik { position: relative; display: flex; width: 8px; height: 8px; }
.titik::before { content: ""; position: absolute; inset: 0; border-radius: 50%; background: #f87171; opacity: .75; animation: denyut 1.5s cubic-bezier(0, 0, .2, 1) infinite; }
.titik span { position: relative; width: 8px; height: 8px; border-radius: 50%; background: var(--merah); }
@keyframes denyut { 75%, 100% { transform: scale(2.2); opacity: 0; } }
.judul-hero { font-size: clamp(48px, 9vw, 104px); font-weight: 600; line-height: 1.08; letter-spacing: -0.045em; margin-bottom: 32px; }
.judul-hero > span { display: block; }
.putih { color: transparent; background: linear-gradient(to bottom, #fff, #fff 45%, rgba(255,255,255,.4)); -webkit-background-clip: text; background-clip: text; }
.putih .merah { -webkit-text-fill-color: var(--merah); }
.garis-bawah { position: relative; display: inline-block; }
.sub-hero { max-width: 680px; font-size: clamp(18px, 2.2vw, 22px); color: var(--redup); margin-bottom: 48px; }
.aksi-hero { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 20px; }

/* CTA berkilau (border berputar) */
@property --sudut { syntax: "<angle>"; initial-value: 0deg; inherits: false; }
.cta-kilau { --sudut: 0deg; position: relative; display: inline-flex; align-items: center; gap: 10px; overflow: hidden; border-radius: 9999px; padding: 16px 36px; font-weight: 500; color: #fff; isolation: isolate; border: 2px solid transparent; background: linear-gradient(#000, #000) padding-box, conic-gradient(from var(--sudut), transparent 0%, var(--merah) 5%, var(--merah) 30%, transparent 40%, transparent 100%) border-box; animation: kilau 2.5s linear infinite; }
.cta-kilau::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(circle at 50% 50%, #fff .5px, transparent 0); background-size: 4px 4px; opacity: .1; }
.cta-kilau svg { transition: transform .2s; }
.cta-kilau:hover svg:last-child { transform: translateX(4px); }
@keyframes kilau { to { --sudut: 360deg; } }
.cta-kedua { display: inline-flex; align-items: center; gap: 10px; padding: 16px 32px; border-radius: 9999px; background: #18181b; border: 1px solid #27272a; color: #d4d4d8; font-weight: 500; transition: background .2s, color .2s; }
.cta-kedua:hover { background: #27272a; color: #fff; }
.cta-kedua svg { width: 20px; height: 20px; }

.layar { margin-top: 80px; width: 100%; max-width: 1100px; border-radius: 14px; padding: 8px; background: rgba(255,255,255,.03); border: 1px solid var(--garis); box-shadow: 0 0 0 1px rgba(0,0,0,.6), 0 40px 120px -20px rgba(239,35,60,.18); }
.layar img { border-radius: 8px; }

/* Masuk perlahan */
.muncul { opacity: 0; animation: naik .8s ease-out forwards; animation-delay: var(--tunda, 0s); }
@keyframes naik { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }

/* Pita tim */
.pita-tim { border-block: 1px solid rgba(255,255,255,.05); background: rgba(255,255,255,.02); backdrop-filter: blur(4px); padding: 40px 24px 28px; }
.isi-pita { max-width: 1200px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; gap: 24px; }
.label-pita { font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--redup-2); }
.daftar-tim { list-style: none; display: flex; flex-wrap: wrap; justify-content: center; gap: 28px 48px; }
.daftar-tim li { display: flex; align-items: center; gap: 12px; font-family: Manrope, sans-serif; }
.daftar-tim strong { display: block; font-weight: 700; font-size: 15px; }
.daftar-tim small { color: var(--redup); font-size: 13px; }
.catatan-tim { max-width: 1200px; margin: 20px auto 0; text-align: center; font-size: 13px; color: var(--redup-2); }

/* Bagian umum */
.bagian { padding: 128px 24px; max-width: 1240px; margin: 0 auto; }
.kepala-bagian { max-width: 760px; margin: 0 auto 72px; text-align: center; }
.kepala-bagian h2, .judul-akhir { font-size: clamp(34px, 5vw, 52px); font-weight: 600; letter-spacing: -0.03em; line-height: 1.15; margin-bottom: 20px; }
.kepala-bagian p { font-size: 18px; color: var(--redup); }

/* Bento */
.bento { display: grid; grid-template-columns: 1fr; gap: 16px; }
.kartu { position: relative; overflow: hidden; padding: 32px; border-radius: 12px; border: 1px solid var(--garis); background: #000; transition: border-color .2s; }
.kartu:hover { border-color: rgba(255,255,255,.2); }
.kartu::after { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .3s; background: radial-gradient(circle at top right, var(--pendar, var(--merah)), transparent 70%); }
.kartu:hover::after { opacity: .1; }
.kartu-besar { background: linear-gradient(to bottom, rgba(24,24,27,.5), #000); }
.kartu-besar img { margin-top: 28px; border-radius: 8px; border: 1px solid var(--garis); }
.kartu h3 { font-size: 22px; font-weight: 600; margin-bottom: 8px; letter-spacing: -0.01em; }
.kartu-besar h3 { font-size: 30px; }
.kartu p { color: var(--redup); }
.kartu-besar p { font-size: 18px; }
.ikon { display: inline-flex; padding: 12px; margin-bottom: 20px; border-radius: 8px; background: rgba(255,255,255,.05); border: 1px solid var(--garis); font-size: 24px; }
.ikon.biru { color: #60a5fa; } .kartu-lebar { --pendar: #3b82f6; }
.ikon.kuning { color: #facc15; }
.ikon.ungu { color: #c084fc; }
.fakta { list-style: none; display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 32px; margin-top: 40px; color: #d4d4d8; font-size: 14px; }
.fakta li { display: flex; align-items: center; gap: 8px; }
.fakta li::before { content: ""; width: 14px; height: 8px; border: solid var(--merah); border-width: 0 0 2px 2px; transform: rotate(-45deg) translateY(-2px); }

/* Pita merah */
.pita-merah { background: var(--merah); padding: 80px 24px; position: relative; z-index: 10; }
.isi-merah { max-width: 900px; margin: 0 auto; text-align: center; color: #000; }
.kecil-merah { font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 20px; opacity: .7; }
.isi-merah blockquote { font: 700 clamp(26px, 4vw, 44px)/1.2 Manrope, sans-serif; letter-spacing: -0.02em; margin-bottom: 32px; }
.sumber-merah { display: flex; align-items: center; justify-content: center; gap: 14px; text-align: left; font-size: 16px; }
.sumber-merah > span:last-child { line-height: 1.35; }
.avatar-hitam { width: 52px; height: 52px; border-radius: 50%; background: #000; display: flex; align-items: center; justify-content: center; }

/* Langkah */
.langkah { list-style: none; display: grid; grid-template-columns: 1fr; gap: 16px; }
.langkah li { padding: 32px; border: 1px solid #27272a; border-radius: 12px; background: #000; }
.nomor { display: block; font-size: 14px; font-weight: 800; color: var(--merah); letter-spacing: .1em; margin-bottom: 16px; }
.langkah h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.langkah p { color: var(--redup); font-size: 15px; }

/* Ajakan akhir */
.akhir { text-align: center; max-width: 860px; }
.judul-akhir { font-size: clamp(42px, 7vw, 76px); font-weight: 700; letter-spacing: -0.045em; margin-bottom: 28px; }
.akhir > p { font-size: 20px; color: var(--redup); margin-bottom: 48px; }

/* Kaki */
.kaki { position: relative; z-index: 10; background: #000; border-top: 1px solid #18181b; padding: 80px 24px 40px; overflow: hidden; }
.kaki-atas { max-width: 1200px; margin: 0 auto 64px; display: grid; grid-template-columns: 1fr; gap: 40px; }
.kaki-merek p { margin-top: 20px; max-width: 320px; color: var(--redup-2); }
.kaki h4 { font-size: 12px; font-weight: 700; color: var(--merah); text-transform: uppercase; letter-spacing: .14em; margin-bottom: 20px; }
.kaki ul { list-style: none; display: grid; gap: 14px; font-size: 14px; color: var(--redup); }
.kaki ul a:hover { color: #fff; }
.kaki-raksasa { text-align: center; font: 700 15vw/1 Manrope, sans-serif; letter-spacing: -0.05em; color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,.1); opacity: .2; padding: 24px 0; user-select: none; white-space: nowrap; }
.kaki-bawah { max-width: 1200px; margin: 0 auto; border-top: 1px solid #18181b; padding-top: 32px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: 10px; text-transform: uppercase; letter-spacing: .14em; color: #52525b; }

@media (max-width: 480px) {
  .nav { padding: 8px 8px 8px 14px; gap: 8px; }
  .merek { font-size: 16px; gap: 8px; }
  .tombol-nav { padding: 8px 14px; font-size: 11px; letter-spacing: .04em; }
  .tombol-nav svg { display: none; }
  .hero { padding-top: 130px; }
}
@media (min-width: 768px) {
  .nav-tautan { display: flex; }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .langkah { grid-template-columns: repeat(3, 1fr); }
  .kaki-atas { grid-template-columns: 2fr 1fr 1fr; }
}
@media (min-width: 1024px) {
  .bento { grid-template-columns: repeat(4, 1fr); }
  .kartu-besar { grid-column: span 2; grid-row: span 2; }
  .kartu-lebar { grid-column: span 2; }
}
/* Reduced-motion hanya menghentikan gerak latar yang terus-menerus; CTA, hover, transisi & fade-in tetap
   (Windows dengan "Animation effects" mati juga memicu setelan ini, lihat efek.css). */
@media (prefers-reduced-motion: reduce) {
  .bintang, .titik::before { animation: none; }
}