@font-face {
  font-family: "Pretendard";
  src: url("/fonts/PretendardVariable.woff2") format("woff2-variations"), url("/fonts/PretendardVariable.woff2") format("woff2");
  font-weight: 45 920;
  font-display: swap;
}

:root {
  --blue: #0a6bff;
  --navy: #0b1736;
  --navy-2: #1f3c78;
  --card: #f3f6fd;
  --ink: #111a2e;
  --white-80: rgba(255, 255, 255, .86);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Pretendard", "Noto Sans KR", "Apple SD Gothic Neo", system-ui, sans-serif;
  color: #fff;
  background: #0a5ff0;
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.015em;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
.container { width: min(1140px, calc(100% - 48px)); margin: 0 auto; }

/* ---- nav ---- */
.nav { position: fixed; z-index: 20; top: 0; left: 0; right: 0; transition: background .3s, box-shadow .3s; }
.nav.solid { background: rgba(8, 82, 228, .86); backdrop-filter: blur(14px); box-shadow: 0 6px 30px rgba(0, 30, 90, .25); }
.nav .container { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nav .mini { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; }
.nav .mini img { width: 34px; height: 34px; border-radius: 9px; }
.nav .mini .wm { height: 22px; width: auto; }
.nav nav { display: flex; gap: 26px; align-items: center; font-weight: 600; font-size: 15px; }
.nav nav a:not(.btn) { opacity: .85; }
.nav nav a:not(.btn):hover { opacity: 1; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 48px; padding: 0 22px; border-radius: 14px; font-weight: 750; font-size: 16px; transition: transform .15s, box-shadow .2s, background .2s; }
.btn:hover { transform: translateY(-1px); }
.btn.white { background: #fff; color: var(--blue); box-shadow: 0 10px 30px rgba(0, 40, 140, .3); }
.btn.line { box-shadow: inset 0 0 0 1.6px rgba(255, 255, 255, .8); color: #fff; }
.btn.small { height: 38px; padding: 0 16px; font-size: 14px; border-radius: 11px; }

/* ---- hero ---- */
.hero { position: relative; overflow: hidden; padding-top: 120px; background: linear-gradient(180deg, #0b6bff 0%, #1677ff 30%, #3f93ff 66%, #79b6ff 100%); }
.cloud { position: absolute; border-radius: 50%; background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, .55), rgba(255, 255, 255, 0) 68%); filter: blur(10px); pointer-events: none; }
.hero-top { position: relative; display: grid; grid-template-columns: 1.25fr 1fr; gap: 56px; align-items: start; }
.lockup { display: flex; align-items: center; gap: 30px; }
.lockup .icon { width: 132px; height: 132px; border-radius: 30px; box-shadow: 0 16px 40px rgba(0, 30, 110, .3); }
.lockup .wordmark { width: 300px; height: auto; filter: drop-shadow(0 8px 18px rgba(0, 30, 110, .2)); }
.hero h1 { margin: 34px 0 0; font-size: clamp(26px, 2.6vw, 35px); line-height: 1.42; font-weight: 750; letter-spacing: -0.03em; }
.hero .cta { display: flex; gap: 12px; margin-top: 30px; flex-wrap: wrap; }
.overview { padding-top: 6px; }
.overview h3 { margin: 0 0 14px; font-size: 19px; font-weight: 750; }
.overview p { margin: 0 0 10px; font-size: 16px; line-height: 1.75; color: var(--white-80); }
.live-chip { display: inline-flex; align-items: center; gap: 10px; margin-top: 16px; padding: 10px 16px; border-radius: 99px; background: rgba(5, 25, 80, .32); box-shadow: inset 0 0 0 1px rgba(255,255,255,.25); font-size: 14px; font-weight: 600; backdrop-filter: blur(6px); }
.live-chip i { width: 9px; height: 9px; border-radius: 50%; background: #ffc53d; box-shadow: 0 0 0 4px rgba(255, 197, 61, .25); }
.live-chip.ok i { background: #3ddc84; box-shadow: 0 0 0 4px rgba(61, 220, 132, .25); }

.hero-stage { position: relative; height: 760px; margin-top: 30px; }
.mascot-wrap { position: absolute; left: 1%; bottom: 0; width: 400px; }
.mascot-wrap .mascot { width: 100%; filter: drop-shadow(0 20px 40px rgba(0, 30, 100, .35)); }
.speech { position: absolute; left: -26px; top: -90px; padding: 16px 22px; border-radius: 24px; background: linear-gradient(#fff, #eaf3ff); color: #0b4fd8;
  font-weight: 800; font-size: 20px; line-height: 1.35; text-align: center; box-shadow: inset 0 0 0 2.4px #1f7bff, 0 12px 30px rgba(0, 40, 140, .25); transform: rotate(-3deg); }
.speech::after { content: ""; position: absolute; left: 66%; bottom: -12px; width: 22px; height: 22px; background: #eaf3ff; border-right: 2.4px solid #1f7bff; border-bottom: 2.4px solid #1f7bff; transform: rotate(45deg); border-radius: 0 0 4px 0; }
.star { position: absolute; width: 96px; left: 39%; top: 90px; animation: float 3.4s ease-in-out infinite; filter: drop-shadow(0 10px 18px rgba(120, 80, 0, .25)); }
@keyframes float { 50% { transform: translateY(-14px) rotate(6deg); } }

.phone-box { position: absolute; right: 4%; top: 0; width: calc(390px * var(--s)); height: calc(844px * var(--s)); --s: .86; }
.phone { position: absolute; top: 0; left: 0; width: 418px; height: 872px; transform: scale(var(--s)); transform-origin: top left; padding: 14px; border-radius: 64px;
  background: linear-gradient(145deg, #3a414d, #12161d 40%, #2a303a); box-shadow: inset 0 0 0 2px #59616e, inset 0 0 0 5px #0b0d11, 0 40px 80px rgba(0, 25, 90, .45), 0 0 0 1px rgba(255,255,255,.1); }
.phone iframe { display: block; width: 390px; height: 844px; border: 0; border-radius: 50px; background: #f6f9fd; }
.phone .island { position: absolute; z-index: 2; top: 27px; left: 50%; width: 120px; height: 34px; margin-left: -60px; border-radius: 20px; background: #000; pointer-events: none; }
.phone-note { position: absolute; right: calc(4% + 390px * .86 + 22px); top: 280px; width: 190px; font-size: 14.5px; font-weight: 600; line-height: 1.55; color: #fff; text-shadow: 0 2px 10px rgba(0, 30, 100, .35); }
.phone-note b { display: block; font-size: 17px; margin-bottom: 4px; }
.mobile-cta { display: none; }

/* ---- problem / solution (poster lower half) ---- */
.lower { padding: 90px 0 100px; background: linear-gradient(160deg, #0a4fd8 0%, #0b5ff0 45%, #1a6df6 100%); }
.tag { display: inline-block; padding: 3px 10px; border-radius: 7px; box-shadow: inset 0 0 0 1.6px rgba(255, 255, 255, .95); font-size: 15px; font-weight: 600; }
.lower h2, .model h2 { margin: 14px 0 26px; font-size: clamp(21px, 2vw, 26px); font-weight: 750; letter-spacing: -0.03em; }
.grid2 { display: grid; grid-template-columns: 1fr 1.12fr; gap: 54px; }
.card { background: var(--card); border-radius: 22px; color: var(--ink); overflow: hidden; }
.lower p { font-size: 16.5px; line-height: 1.75; color: var(--white-80); margin: 26px 0 0; }
.pie-card { position: relative; height: 300px; }
.pie-card svg { position: absolute; left: 50%; top: 50%; width: 230px; height: 230px; transform: translate(-50%, -50%); }
.pie-label { position: absolute; padding: 12px 16px; border-radius: 14px; text-align: center; font-size: 12.5px; line-height: 1.45; font-weight: 600; }
.pie-label b { display: block; font-size: 22px; margin-bottom: 2px; }
.pie-label.l48 { right: 7%; top: 12%; background: linear-gradient(135deg, #0b1736, #1f3c78); color: #fff; box-shadow: 0 12px 26px rgba(10, 20, 60, .3); }
.pie-label.l31 { left: 9%; bottom: 7%; background: linear-gradient(135deg, #cfe2ff, #eef5ff); color: #26324a; }
.pie-label.l21 { left: 18%; top: 11%; background: #d9dde3; color: #4b5567; padding: 8px 12px; }
.pie-label.l21 b { font-size: 18px; }
.comic { padding: 18px; }
.comic img { border-radius: 12px; }

.grid-sol { display: grid; grid-template-columns: 1.6fr 1fr; gap: 54px; margin-top: 70px; }
.asis { position: relative; padding: 44px 22px 22px; border-radius: 28px; background: linear-gradient(160deg, rgba(160, 200, 255, .45), rgba(120, 170, 255, .25)); box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .55); backdrop-filter: blur(6px); }
.asis .heads { position: absolute; top: -16px; left: 0; right: 0; display: grid; grid-template-columns: 1fr 46px 1fr; padding: 0 22px; }
.asis .heads span { justify-self: center; padding: 6px 16px; border-radius: 10px; background: linear-gradient(#fff, #e7f0ff); color: #15244a; font-weight: 800; font-size: 15px; box-shadow: 0 6px 16px rgba(0, 30, 100, .2); }
.asis .row { display: grid; grid-template-columns: 1fr 46px 1fr; align-items: center; margin-bottom: 10px; }
.asis .from { height: 58px; display: grid; place-items: center; border-radius: 14px; background: linear-gradient(100deg, #0b1736 40%, #24427f); font-weight: 700; font-size: 17px; }
.asis .to { height: 58px; display: grid; place-items: center; border-radius: 14px; background: rgba(40, 80, 170, .35); box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .7); font-weight: 700; font-size: 17px; }
.asis .arrow { justify-self: center; width: 40px; height: 2px; background: #0b1736; position: relative; }
.asis .arrow::after { content: ""; position: absolute; right: -1px; top: -5px; width: 10px; height: 10px; border-top: 2px solid #0b1736; border-right: 2px solid #0b1736; transform: rotate(45deg); }
.asis .sum { margin-top: 14px; padding: 18px 20px; border-radius: 18px; background: linear-gradient(100deg, #9ec6ff, #dbe9ff); color: #182544; text-align: center; font-weight: 650; font-size: 15.5px; line-height: 1.6; }
.brand-card { padding: 14px; }
.brand-card img { border-radius: 14px; }

/* ---- AI engine ---- */
.model { position: relative; padding: 100px 0 110px; background: radial-gradient(1200px 500px at 80% 0%, rgba(40, 110, 255, .35), transparent 60%), linear-gradient(180deg, #0b1736, #0f2350 60%, #173a7a); }
.model .lead { max-width: 760px; font-size: 17px; line-height: 1.75; color: var(--white-80); margin: -6px 0 36px; }
.model-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.mcard { padding: 22px; border-radius: 22px; background: rgba(255, 255, 255, .06); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .14); backdrop-filter: blur(8px); min-height: 190px; }
.mcard .k { font-size: 13px; color: rgba(255, 255, 255, .6); font-weight: 600; margin-bottom: 8px; }
.mcard .v { font-size: 26px; font-weight: 800; letter-spacing: -0.02em; }
.mcard .v small { font-size: 15px; font-weight: 600; opacity: .7; }
.mcard .d { font-size: 13.5px; line-height: 1.6; color: rgba(255, 255, 255, .75); margin-top: 10px; }
.bar { height: 8px; border-radius: 4px; background: rgba(255, 255, 255, .14); overflow: hidden; margin: 14px 0 6px; }
.bar i { display: block; height: 100%; width: 0; border-radius: 4px; background: linear-gradient(90deg, #4fb3ff, #7cf0d0); transition: width 1s; }
.flow { display: grid; grid-template-columns: 1fr 40px 1fr 40px 1fr; align-items: stretch; margin-top: 46px; }
.flow .step { padding: 22px; border-radius: 22px; background: linear-gradient(140deg, #fff, #e9f1ff); color: var(--ink); }
.flow .step b { display: block; font-size: 17px; margin: 8px 0 6px; }
.flow .step span { font-size: 14px; line-height: 1.6; color: #4b5567; }
.flow .step code { font-family: ui-monospace, Menlo, monospace; font-size: 12.5px; background: #eaf1ff; color: #1d4ed8; padding: 8px 10px; border-radius: 10px; display: block; margin-top: 10px; white-space: pre-line; line-height: 1.6; }
.flow .step .num { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 9px; background: var(--blue); color: #fff; font-size: 15px; font-weight: 800; }
.flow .sep { display: grid; place-items: center; font-size: 22px; color: rgba(255, 255, 255, .6); }
.history { margin-top: 40px; border-radius: 22px; overflow: hidden; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .14); }
.history table { width: 100%; border-collapse: collapse; font-size: 14px; }
.history th, .history td { padding: 13px 18px; text-align: left; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.history th { color: rgba(255, 255, 255, .6); font-weight: 600; background: rgba(255, 255, 255, .04); }
.history td.ok { color: #7cf0d0; font-weight: 700; }
.history td.keep { color: #ffd27a; font-weight: 700; }

footer { padding: 46px 0 56px; background: #0b1736; color: rgba(255, 255, 255, .7); font-size: 14px; }
footer .container { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; align-items: flex-start; }
footer .team { display: flex; gap: 22px; flex-wrap: wrap; font-weight: 600; color: #fff; }
footer .team b { font-weight: 800; }
footer p { margin: 10px 0 0; line-height: 1.7; max-width: 560px; }

@media (max-width: 1100px) {
  .model-grid { grid-template-columns: repeat(2, 1fr); }
  .phone-note { display: none; }
  .mascot-wrap { width: 320px; }
}
@media (max-width: 860px) {
  .hero h1 br { display: none; }
  .container { width: calc(100% - 32px); }
  .nav nav a:not(.btn) { display: none; }
  .hero { padding-top: 96px; }
  .hero-top, .grid2, .grid-sol { grid-template-columns: 1fr; gap: 34px; }
  .lockup { gap: 18px; }
  .lockup .icon { width: 84px; height: 84px; border-radius: 20px; }
  .lockup .wordmark { width: 190px; }
  .hero-stage { height: 470px; }
  .phone-box { display: none; }
  .mobile-cta { display: flex; position: absolute; right: 0; top: 40px; flex-direction: column; gap: 10px; align-items: flex-end; }
  .mascot-wrap { width: 270px; left: -10px; }
  .speech { font-size: 16px; left: 120px; top: -60px; }
  .star { left: auto; right: 8%; top: 170px; width: 70px; }
  .flow { grid-template-columns: 1fr; gap: 10px; }
  .flow .sep { transform: rotate(90deg); height: 30px; }
  .model-grid { grid-template-columns: 1fr; }
  .history { overflow-x: auto; }
  .asis .from, .asis .to { font-size: 14px; height: 52px; padding: 0 8px; text-align: center; }
}