.bit {
  --b: "Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --bg: #0a1019;
  --bg2: #0d1726;
  --panel: #11203359;
  --panel-s: #13243a;
  --line: rgba(255, 255, 255, 0.08);
  --line2: rgba(255, 255, 255, 0.15);
  --ink: #eef4fb;
  --ink2: #c5d3e4;
  --muted: #8b9fb6;
  --ac: #18c8ec;
  --ac2: #4d8cff;
  --sig: #f5b53d;
  --ease: cubic-bezier(0.22, 0.8, 0.34, 1);
  --radius: 16px;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--b);
  -webkit-font-smoothing: antialiased;
}

.bit ::selection { background: rgba(24, 200, 236, 0.3); color: #fff; }
.bit section { position: relative; }
.bit h1, .bit h2, .bit h3 { font-weight: 700; letter-spacing: -0.015em; }

.bit .klabel {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 0.74rem; font-weight: 700; letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--ac); margin-bottom: 16px;
}
.bit .klabel::before { content: ""; width: 26px; height: 2px; border-radius: 2px; background: var(--ac); }

.bit .shead { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.bit .shead h2 { font-size: clamp(1.85rem, 3.5vw, 2.85rem); line-height: 1.1; margin: 0 0 16px; }
.bit .shead p { color: var(--muted); font-size: 1.04rem; margin: 0; }

.bit .btn {
  display: inline-flex; align-items: center; gap: 9px; cursor: pointer;
  font-family: var(--b); font-weight: 700; font-size: 0.92rem; line-height: 1;
  padding: 13px 24px; border-radius: 100px; border: 0; transition: 0.25s var(--ease);
  background: linear-gradient(95deg, var(--ac), var(--ac2)); color: #04121d;
  box-shadow: 0 14px 30px -12px rgba(24, 200, 236, 0.55);
}
.bit .btn svg { width: 18px; height: 18px; }
.bit .btn:hover { transform: translateY(-3px); box-shadow: 0 20px 40px -14px rgba(24, 200, 236, 0.7); }
.bit .btn-lg { padding: 16px 30px; font-size: 0.98rem; }
.bit .btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--line2); box-shadow: none; }
.bit .btn-ghost:hover { border-color: var(--ac); color: var(--ac); transform: translateY(-3px); }

.bit .nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 16, 25, 0.55); backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid transparent; transition: background 0.3s, border-color 0.3s;
}
.bit .nav.solid { background: rgba(9, 14, 22, 0.92); border-bottom-color: var(--line); }
.bit .nav-in { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.bit .brand { display: inline-flex; align-items: center; gap: 12px; }
.bit .brand-mark { display: inline-flex; gap: 3px; padding: 9px; border-radius: 11px; background: #0e1d30; border: 1px solid var(--line); flex: none; }
.bit .brand-mark b { width: 7px; height: 18px; border-radius: 2px; display: block; }
.bit .brand-mark b:nth-child(1) { background: var(--ac); }
.bit .brand-mark b:nth-child(2) { background: var(--sig); height: 13px; align-self: flex-end; }
.bit .brand-mark b:nth-child(3) { background: var(--ac2); height: 15px; align-self: flex-end; }
.bit .brand-tx { display: flex; flex-direction: column; line-height: 1.1; }
.bit .brand-tx b { font-weight: 800; font-size: 1.02rem; letter-spacing: 0.02em; color: #fff; }
.bit .brand-tx span { font-size: 0.64rem; letter-spacing: 0.34em; color: var(--muted); }

.bit .nav-links { display: flex; align-items: center; gap: 30px; }
.bit .nav-links > a { font-size: 0.92rem; font-weight: 600; color: var(--ink2); transition: color 0.2s; }
.bit .nav-links > a:not(.btn):hover { color: var(--ac); }
.bit .nav-links .btn { padding: 11px 20px; }
.bit .burger { display: none; background: none; border: 0; color: var(--ink); cursor: pointer; padding: 6px; }
.bit .burger svg { width: 26px; height: 26px; }
.bit .nav-util { display: inline-flex; align-items: center; gap: 10px; flex: none; }
.bit .nav-home {
  display: inline-flex; align-items: center; gap: 7px; padding: 8px 13px; border-radius: 100px;
  border: 1px solid var(--line2); background: rgba(255, 255, 255, 0.04); color: var(--ink2);
  font-size: 0.84rem; font-weight: 700; transition: 0.2s;
}
.bit .nav-home:hover { background: rgba(24, 200, 236, 0.12); border-color: var(--ac); color: #fff; }

.bit .hero { overflow: hidden; background: radial-gradient(120% 90% at 80% -10%, #13314a 0%, var(--bg2) 46%, var(--bg) 100%); }
.bit .hero-grid {
  position: absolute; inset: 0; z-index: 0; opacity: 0.5;
  background-image: radial-gradient(rgba(120, 170, 210, 0.16) 1px, transparent 1.4px);
  background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
}
.bit .hero-glow { position: absolute; top: -160px; right: -120px; width: 620px; height: 620px; z-index: 0; border-radius: 50%; background: radial-gradient(circle, rgba(24, 200, 236, 0.28), transparent 62%); filter: blur(8px); }
.bit .hero-in {
  position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center;
  padding: clamp(56px, 8vw, 104px) 0 clamp(50px, 7vw, 86px);
}
.bit .badge {
  display: inline-flex; align-items: center; gap: 9px; margin-bottom: 22px;
  padding: 8px 16px; border-radius: 100px; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  background: rgba(24, 200, 236, 0.1); border: 1px solid rgba(24, 200, 236, 0.32); color: #b9ecfb;
}
.bit .kor { display: block; font-weight: 600; color: var(--ac); font-size: clamp(0.95rem, 1.7vw, 1.15rem); margin-bottom: 12px; letter-spacing: 0.02em; }
.bit .hero-title { font-size: clamp(2.2rem, 5vw, 4rem); line-height: 1.05; margin: 0 0 22px; }
.bit .hero-title em { color: var(--ac); font-style: normal; }
.bit .hero-lead { font-size: clamp(1rem, 1.5vw, 1.16rem); font-weight: 300; color: var(--ink2); max-width: 540px; margin: 0 0 32px; }
.bit .hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }

.bit .hero-screen {
  position: relative; border-radius: 16px; overflow: hidden; border: 1px solid var(--line2);
  background: #0c1626; box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(24, 200, 236, 0.08);
}
.bit .screen-bar { display: flex; gap: 7px; padding: 12px 16px; background: #0a1422; border-bottom: 1px solid var(--line); }
.bit .screen-bar i { width: 10px; height: 10px; border-radius: 50%; background: #2a3b52; }
.bit .screen-bar i:nth-child(1) { background: #ff5f57; }
.bit .screen-bar i:nth-child(2) { background: #febc2e; }
.bit .screen-bar i:nth-child(3) { background: #28c840; }
.bit .hero-screen img { width: 100%; height: auto; display: block; }

.bit .hero-stats {
  position: relative; z-index: 2; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  padding: 30px 0 clamp(50px, 7vw, 80px);
}
.bit .stat { padding: 18px 4px 6px; border-top: 2px solid var(--line2); }
.bit .stat-n { display: block; font-weight: 800; font-size: clamp(1.4rem, 2.6vw, 2rem); color: #fff; line-height: 1; margin-bottom: 8px; }
.bit .stat-n:first-letter { color: var(--ac); }
.bit .stat-l { font-size: 0.82rem; color: var(--muted); }

.bit .why { padding: clamp(70px, 9vw, 110px) 0; background: var(--bg2); border-top: 1px solid var(--line); }
.bit .pain-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.bit .pain {
  background: var(--panel-s); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px;
  transition: 0.3s var(--ease); transition-delay: var(--d, 0ms);
}
.bit .pain:hover { transform: translateY(-5px); border-color: var(--line2); }
.bit .pain-no { display: block; font-weight: 800; font-size: 1.1rem; color: var(--ac); margin-bottom: 14px; opacity: 0.8; }
.bit .pain h3 { font-size: 1.04rem; margin: 0 0 9px; color: #fff; }
.bit .pain p { font-size: 0.88rem; color: var(--muted); margin: 0; line-height: 1.55; }
.bit .answer {
  margin-top: 30px; display: flex; align-items: flex-start; gap: 20px; flex-wrap: wrap;
  background: linear-gradient(100deg, rgba(24, 200, 236, 0.12), rgba(77, 140, 255, 0.06));
  border: 1px solid rgba(24, 200, 236, 0.26); border-left: 3px solid var(--ac); border-radius: var(--radius); padding: 28px 30px;
}
.bit .answer-tag { font-weight: 700; font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ac); flex: none; padding-top: 3px; }
.bit .answer p { margin: 0; font-size: clamp(1rem, 1.5vw, 1.16rem); color: var(--ink); font-weight: 500; line-height: 1.55; }

.bit .process { padding: clamp(70px, 9vw, 110px) 0; }
.bit .steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: none; }
.bit .step { position: relative; padding: 26px 18px 22px; border-radius: var(--radius); background: var(--panel-s); border: 1px solid var(--line); }
.bit .step::after { content: ""; position: absolute; top: 44px; right: -9px; width: 16px; height: 2px; background: var(--line2); z-index: 2; }
.bit .steps .step:last-child::after { display: none; }
.bit .step-n { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 11px; font-weight: 800; font-size: 0.92rem; color: #04121d; background: linear-gradient(135deg, var(--ac), var(--ac2)); margin-bottom: 16px; }
.bit .step h3 { font-size: 0.98rem; margin: 0 0 8px; color: #fff; }
.bit .step p { font-size: 0.84rem; color: var(--muted); margin: 0; line-height: 1.5; }

.bit .sol { padding: clamp(70px, 9vw, 110px) 0; background: var(--bg2); border-top: 1px solid var(--line); }
.bit .sol-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.bit .scard {
  display: flex; flex-direction: column; gap: 16px; padding: 26px 22px; border-radius: var(--radius);
  background: var(--panel-s); border: 1px solid var(--line); transition: 0.3s var(--ease); transition-delay: var(--d, 0ms);
}
.bit .scard:hover { transform: translateY(-6px); border-color: rgba(24, 200, 236, 0.45); box-shadow: 0 24px 50px -28px rgba(24, 200, 236, 0.4); }
.bit .sicon { width: 50px; height: 50px; border-radius: 13px; display: grid; place-items: center; flex: none; background: linear-gradient(135deg, rgba(24, 200, 236, 0.16), rgba(77, 140, 255, 0.1)); border: 1px solid rgba(24, 200, 236, 0.22); color: var(--ac); }
.bit .sicon svg { width: 25px; height: 25px; }
.bit .seyebrow { display: block; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); margin-bottom: 5px; }
.bit .scard h3 { font-size: 1.06rem; margin: 0 0 9px; color: #fff; }
.bit .scard p { font-size: 0.87rem; color: var(--muted); margin: 0; line-height: 1.55; }

.bit .show { padding: clamp(70px, 9vw, 110px) 0; }
.bit .feat { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; margin-bottom: 40px; }
.bit .feat:last-child { margin-bottom: 0; }
.bit .feat-rev .feat-media { order: 2; }
.bit .feat-media { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line2); background: #0c1626; box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.7); }
.bit .feat-media > img { width: 100%; height: auto; display: block; }
.bit .feat-inset { position: absolute; right: 14px; bottom: 14px; width: 36%; border-radius: 10px; border: 1px solid var(--line2); box-shadow: 0 16px 30px -16px rgba(0, 0, 0, 0.8); background: #0c1626; }
.bit .feat-body .ptag { display: inline-block; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ac); background: rgba(24, 200, 236, 0.1); border: 1px solid rgba(24, 200, 236, 0.26); padding: 5px 12px; border-radius: 100px; margin-bottom: 14px; }
.bit .feat-body h3 { font-size: clamp(1.4rem, 2.4vw, 1.9rem); margin: 0 0 14px; color: #fff; }
.bit .feat-body > p { color: var(--ink2); font-size: 1rem; line-height: 1.6; margin: 0 0 20px; }
.bit .model-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.bit .model-chips span { font-size: 0.78rem; font-weight: 700; color: var(--ink); background: #0e1d30; border: 1px solid var(--line2); padding: 6px 12px; border-radius: 8px; font-family: var(--b); }
.bit .speclist { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.bit .speclist li { position: relative; padding-left: 26px; font-size: 0.9rem; color: var(--ink2); }
.bit .speclist li::before { content: ""; position: absolute; left: 0; top: 7px; width: 14px; height: 8px; border-left: 2px solid var(--ac); border-bottom: 2px solid var(--ac); transform: rotate(-45deg); }
.bit .feat-feats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.bit .ff { display: flex; align-items: center; gap: 11px; padding: 13px 14px; border-radius: 11px; background: var(--panel-s); border: 1px solid var(--line); font-size: 0.9rem; font-weight: 600; color: var(--ink); }
.bit .ff-ic { width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; flex: none; background: rgba(24, 200, 236, 0.12); color: var(--ac); }
.bit .ff-ic svg { width: 17px; height: 17px; }

.bit .ref { padding: clamp(70px, 9vw, 110px) 0; background: var(--bg2); border-top: 1px solid var(--line); }
.bit .ref-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 26px; }
.bit .ref-pic { position: relative; margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line2); }
.bit .ref-pic img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 16 / 10; }
.bit .ref-pic figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 30px 18px 14px; font-size: 0.86rem; font-weight: 600; color: #fff; background: linear-gradient(180deg, transparent, rgba(7, 12, 20, 0.92)); }
.bit .ref-sectors { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.bit .ref-sectors span { font-size: 0.84rem; font-weight: 600; color: var(--ink2); background: var(--panel-s); border: 1px solid var(--line); padding: 9px 16px; border-radius: 100px; }

.bit .pack { padding: clamp(70px, 9vw, 110px) 0; }
.bit .pack-list { display: grid; gap: 12px; }
.bit .prow {
  display: grid; grid-template-columns: 1fr 1.1fr 1.4fr; gap: 22px; align-items: center;
  padding: 22px 26px; border-radius: var(--radius); background: var(--panel-s); border: 1px solid var(--line); transition: 0.25s var(--ease);
}
.bit .prow:hover { border-color: var(--line2); background: #14253b; }
.bit .prow-type { font-weight: 700; color: #fff; font-size: 1rem; }
.bit .prow-combo { font-weight: 600; color: var(--ac); font-size: 0.9rem; }
.bit .prow-desc { color: var(--muted); font-size: 0.9rem; }

.bit .close-cta { padding: clamp(64px, 8vw, 96px) 0; }
.bit .close-in {
  text-align: center; max-width: 760px; margin: 0 auto; padding: clamp(40px, 6vw, 64px) 30px; border-radius: 24px;
  background: radial-gradient(120% 130% at 50% -20%, #15324c, var(--panel-s)); border: 1px solid var(--line2);
}
.bit .close-in .klabel { justify-content: center; }
.bit .close-in h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); line-height: 1.12; margin: 0 0 16px; }
.bit .close-in p { color: var(--ink2); margin: 0 0 28px; font-size: 1.04rem; }

@media (max-width: 1100px) {
  .bit .sol-grid { grid-template-columns: repeat(2, 1fr); }
  .bit .pain-grid { grid-template-columns: repeat(2, 1fr); }
  .bit .steps { grid-template-columns: repeat(2, 1fr); }
  .bit .step::after { display: none; }
}
@media (max-width: 980px) {
  .bit .nav-links {
    position: fixed; inset: 74px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
    background: #0b1422; border-bottom: 1px solid var(--line); padding: 12px 24px 24px;
    transform: translateY(-135%); transition: transform 0.35s var(--ease); box-shadow: 0 30px 50px -20px rgba(0, 0, 0, 0.7);
  }
  body.menu-open .bit .nav-links { transform: translateY(0); }
  .bit .nav-links > a { padding: 15px 4px; border-bottom: 1px solid var(--line); }
  .bit .nav-links .btn { margin-top: 14px; justify-content: center; }
  .bit .burger { display: inline-flex; }
  .bit .nav-util { margin-left: auto; }
  .bit .hero-in { grid-template-columns: 1fr; gap: 40px; }
  .bit .hero-screen { max-width: 560px; }
  .bit .feat, .bit .feat-rev { grid-template-columns: 1fr; gap: 28px; }
  .bit .feat-rev .feat-media { order: 0; }
  .bit .feat-feats { grid-template-columns: 1fr 1fr; }
  .bit .prow { grid-template-columns: 1fr; gap: 8px; }
  .bit .prow-combo { color: var(--ac); }
}
@media (max-width: 600px) {
  .bit .hero-stats { grid-template-columns: 1fr 1fr; gap: 10px 18px; }
  .bit .pain-grid, .bit .sol-grid, .bit .steps, .bit .ref-grid { grid-template-columns: 1fr; }
  .bit .feat-feats { grid-template-columns: 1fr; }
  .bit .nav-home .lbl { display: none; }
  .bit .nav-home { padding: 8px; }
  .bit .answer { flex-direction: column; gap: 10px; }
}