:root {
  --ink: #171314;
  --muted: #6f6769;
  --red: #ef233c;
  --red-dark: #cc0b24;
  --cream: #fff8f4;
  --paper: #fffdfb;
  --line: rgba(40, 25, 28, .11);
  --shadow: 0 24px 80px rgba(75, 27, 34, .13);
  font-family: "Noto Sans KR", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; background: var(--paper); }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
svg { display: block; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 100; left: 16px; top: -80px; padding: 10px 16px; border-radius: 8px; color: #fff; background: var(--ink); transition: top .2s; }
.skip-link:focus { top: 16px; }
.section-shell { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.section-pad { padding-block: 124px; }

.site-header { position: fixed; z-index: 50; inset: 0 0 auto; height: 76px; border-bottom: 1px solid transparent; transition: background .25s, border-color .25s, box-shadow .25s; }
.site-header.is-scrolled { background: rgba(255,253,251,.88); border-color: var(--line); box-shadow: 0 8px 30px rgba(54,23,28,.05); backdrop-filter: blur(18px); }
.nav-wrap { width: min(1240px, calc(100% - 40px)); height: 100%; margin-inline: auto; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 10px; font: 800 20px/1 Manrope, sans-serif; letter-spacing: -.5px; }
.brand-mark, .download-mark { display: grid; place-items: center; width: 36px; aspect-ratio: 1; border-radius: 11px; color: #fff; background: linear-gradient(145deg, #ff5361, #e6001b 72%); box-shadow: 0 7px 14px rgba(229, 0, 28, .2); }
.brand-mark svg { width: 22px; fill: currentColor; filter: drop-shadow(0 2px 1px rgba(100,0,10,.2)); }
.site-menu { display: flex; align-items: center; gap: 34px; font-size: 14px; font-weight: 600; }
.site-menu > a:not(.nav-cta) { color: #554d4f; transition: color .2s; }
.site-menu > a:not(.nav-cta):hover { color: var(--red); }
.nav-cta { padding: 11px 19px; border-radius: 999px; color: #fff; background: var(--ink); transition: transform .2s, background .2s; }
.nav-cta:hover { transform: translateY(-2px); background: var(--red); }
.menu-button { display: none; width: 42px; height: 42px; border: 0; border-radius: 12px; background: #fff; }
.menu-button > span:not(.sr-only) { display: block; width: 18px; height: 2px; margin: 5px auto; border-radius: 2px; background: var(--ink); transition: transform .2s; }

.hero { min-height: 840px; padding-top: 155px; display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 42px; }
.hero-copy { position: relative; z-index: 2; padding-bottom: 50px; }
.eyebrow, .section-label { color: var(--red); font: 800 12px/1.2 Manrope, "Noto Sans KR", sans-serif; letter-spacing: 1.45px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; padding: 8px 13px; border: 1px solid rgba(239,35,60,.2); border-radius: 99px; background: rgba(255,255,255,.7); }
.eyebrow span { width: 7px; height: 7px; border-radius: 50%; background: var(--red); box-shadow: 0 0 0 5px rgba(239,35,60,.1); }
.hero h1 { margin: 27px 0 24px; font-size: clamp(56px, 6.2vw, 86px); line-height: 1.06; letter-spacing: -5.2px; font-weight: 800; }
.hero h1 em { color: var(--red); font-style: normal; }
.hero-lead { margin: 0; color: var(--muted); font-size: 19px; line-height: 1.8; letter-spacing: -.5px; }
.hero-actions { display: flex; gap: 12px; margin-top: 34px; }
.button { min-height: 54px; padding: 0 24px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; border-radius: 14px; font-size: 15px; font-weight: 700; transition: transform .22s, box-shadow .22s, background .22s; }
.button svg { width: 19px; fill: currentColor; }
.button-primary { color: #fff; background: var(--red); box-shadow: 0 14px 28px rgba(239,35,60,.25); }
.button-primary:hover { transform: translateY(-3px); background: var(--red-dark); box-shadow: 0 18px 34px rgba(239,35,60,.3); }
.button-ghost { border: 1px solid var(--line); background: #fff; }
.button-ghost:hover { transform: translateY(-3px); box-shadow: 0 12px 25px rgba(42,20,24,.08); }
.hero-meta { display: flex; align-items: center; gap: 11px; margin-top: 22px; color: #81787a; font-size: 12px; font-weight: 600; }
.hero-meta i { width: 3px; height: 3px; border-radius: 50%; background: #c3babc; }

.hero-visual { position: relative; min-height: 620px; display: grid; place-items: center; }
.hero-visual::before { content: ""; position: absolute; z-index: -3; inset: -160px -180px -30px -80px; background: radial-gradient(circle at 55% 46%, rgba(255,175,157,.32), transparent 46%), radial-gradient(circle at 72% 25%, rgba(255,226,174,.45), transparent 28%); }
.orbit { position: absolute; z-index: -2; border: 1px solid rgba(239,35,60,.11); border-radius: 50%; }
.orbit-one { width: 620px; height: 620px; }
.orbit-two { width: 480px; height: 480px; border-style: dashed; animation: spin 24s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.app-window { position: relative; width: min(680px, 100%); border: 1px solid rgba(44,23,27,.12); border-radius: 20px; overflow: hidden; background: #fff; box-shadow: 0 40px 100px rgba(93,32,42,.18), 0 6px 20px rgba(47,20,24,.08); transform: perspective(1100px) rotateY(-4deg) rotateX(1deg); }
.app-titlebar { height: 48px; padding: 0 15px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid #ebe7e8; }
.app-brand-mini { display: flex; align-items: center; gap: 8px; font: 800 12px Manrope, sans-serif; }
.mini-mark { width: 22px; height: 22px; display: grid; place-items: center; border-radius: 7px; color: #fff; background: var(--red); }
.mini-mark svg { width: 14px; fill: currentColor; }
.window-actions { height: 100%; display: flex; align-items: center; gap: 20px; color: #898184; font-size: 11px; }
.app-body { padding: 12px 14px 17px; background: #f7f7f8; }
.app-toolbar { display: flex; align-items: center; gap: 6px; padding-bottom: 11px; }
.tool-pill { padding: 7px 10px; border-radius: 7px; color: #7d7577; font-size: 10px; font-weight: 700; }
.tool-pill.is-active { color: var(--ink); background: #fff; box-shadow: 0 2px 5px rgba(0,0,0,.04); }
.tool-pill b { display: inline-grid; place-items: center; margin-left: 3px; width: 15px; height: 15px; border-radius: 50%; color: #fff; background: var(--red); font-size: 8px; }
.toolbar-spacer { flex: 1; }
.app-download-button { padding: 7px 11px; border-radius: 7px; color: #fff; background: var(--red); font-size: 9px; font-weight: 700; }
.browser-card { border: 1px solid #e6e2e3; border-radius: 11px; overflow: hidden; background: #fff; }
.browser-top { height: 34px; padding: 0 11px; display: flex; align-items: center; gap: 5px; border-bottom: 1px solid #ede9ea; }
.browser-top i { width: 6px; height: 6px; border-radius: 50%; background: #ddd8da; }
.address-bar { flex: 1; height: 19px; margin-left: 6px; padding-left: 10px; display: flex; align-items: center; border-radius: 5px; color: #a29a9c; background: #f5f3f4; font-size: 7px; }
.video-stage { padding: 13px; display: grid; grid-template-columns: 1.6fr 1fr; gap: 12px; }
.video-art { min-height: 245px; display: grid; place-items: center; border-radius: 8px; background: linear-gradient(145deg, #2e282b, #171416 70%); }
.play { width: 45px; height: 45px; border-radius: 50%; background: rgba(255,255,255,.94); box-shadow: 0 8px 20px rgba(0,0,0,.2); }
.play::after { content: ""; display: block; margin: 14px 0 0 18px; border: 8px solid transparent; border-left: 11px solid var(--red); }
.video-lines { padding-top: 9px; display: flex; flex-direction: column; gap: 11px; }
.video-lines strong { font-size: 11px; }
.video-lines span { width: 100%; height: 7px; border-radius: 4px; background: #eee9ea; }
.video-lines .short { width: 60%; }
.download-sheet { position: absolute; z-index: 2; left: 50%; bottom: -35px; width: 85%; padding: 13px; display: grid; grid-template-columns: 76px 1fr auto; gap: 13px; align-items: center; border: 1px solid rgba(50,23,28,.12); border-radius: 15px; background: rgba(255,255,255,.96); box-shadow: 0 19px 45px rgba(54,22,28,.2); transform: translateX(-50%); backdrop-filter: blur(15px); }
.thumb { height: 54px; display: grid; place-items: center; border-radius: 8px; background: linear-gradient(135deg,#f94d5c,#ad0016); }
.play.small { width: 22px; height: 22px; }
.play.small::after { margin: 7px 0 0 9px; border-width: 4px; border-left-width: 6px; }
.download-info { display: flex; flex-direction: column; gap: 3px; font-size: 9px; }
.download-info strong { font-size: 11px; }
.download-info > span { color: #8f8688; }
.quality-row { display: flex; gap: 4px; margin-top: 4px; }
.quality-row b { padding: 3px 6px; border-radius: 4px; color: #746c6e; background: #f3f0f1; font-size: 7px; }
.quality-row b:first-child { color: #fff; background: var(--red); }
.round-download { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; color: #fff; background: var(--red); font-weight: 800; }
.floating-card { position: absolute; z-index: 4; padding: 11px 14px 11px 11px; display: flex; align-items: center; gap: 10px; border: 1px solid rgba(50,22,28,.1); border-radius: 14px; background: rgba(255,255,255,.94); box-shadow: 0 17px 36px rgba(70,25,32,.14); backdrop-filter: blur(12px); animation: bob 4s ease-in-out infinite; }
.floating-card > span { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; color: #fff; background: var(--red); font: 800 11px Manrope, sans-serif; }
.floating-card div { display: flex; flex-direction: column; gap: 2px; }
.floating-card strong { font-size: 10px; }
.floating-card small { color: #8c8385; font-size: 8px; }
.card-format { left: -12px; top: 100px; }
.card-speed { right: -20px; bottom: 75px; animation-delay: -2s; }
.card-speed > span { color: #157b4b; background: #ddf7e9; }
@keyframes bob { 50% { transform: translateY(-8px); } }

.proof-strip { overflow: hidden; border-block: 1px solid var(--line); background: #fff; }
.proof-track { width: max-content; min-width: 100%; padding: 24px 0; display: flex; justify-content: space-around; gap: 80px; animation: marquee 32s linear infinite; }
.proof-track > span { display: flex; align-items: center; gap: 10px; color: #4f4749; font-size: 13px; font-weight: 700; white-space: nowrap; }
.proof-icon { display: grid; place-items: center; width: 27px; height: 27px; border-radius: 8px; color: var(--red); background: #fff0f1; font: 800 9px Manrope, sans-serif; }
@keyframes marquee { to { transform: translateX(-25%); } }

.features { background: var(--paper); }
.section-heading { max-width: 660px; margin: 0 auto 55px; text-align: center; }
.section-heading h2 { margin: 16px 0 15px; font-size: clamp(36px, 4vw, 54px); line-height: 1.2; letter-spacing: -2.7px; }
.section-heading p { margin: 0; color: var(--muted); font-size: 17px; line-height: 1.7; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.feature-card { position: relative; min-height: 430px; padding: 40px; overflow: hidden; border-radius: 30px; }
.feature-large { grid-column: 1 / -1; min-height: 480px; }
.feature-red { color: #fff; background: var(--red); }
.feature-dark { color: #fff; background: #1c181a; }
.feature-light { border: 1px solid var(--line); background: #f7f4f3; }
.feature-number { display: inline-grid; place-items: center; width: 38px; height: 30px; border: 1px solid currentColor; border-radius: 999px; opacity: .75; font: 700 11px Manrope, sans-serif; }
.feature-copy { position: relative; z-index: 3; max-width: 410px; }
.feature-card h3 { margin: 28px 0 14px; font-size: 31px; line-height: 1.2; letter-spacing: -1.5px; }
.feature-card p { max-width: 400px; margin: 0; color: inherit; opacity: .72; font-size: 15px; line-height: 1.8; }
.quality-visual { position: absolute; inset: 0 0 0 43%; }
.quality-ring { position: absolute; left: 50%; top: 50%; border: 1px solid rgba(255,255,255,.22); border-radius: 50%; transform: translate(-50%,-50%); }
.ring-a { width: 430px; height: 430px; }
.ring-b { width: 320px; height: 320px; border-style: dashed; }
.quality-center { position: absolute; left: 50%; top: 50%; width: 190px; height: 190px; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px solid rgba(255,255,255,.35); border-radius: 50%; background: rgba(255,255,255,.12); box-shadow: inset 0 0 60px rgba(255,255,255,.12); transform: translate(-50%,-50%); backdrop-filter: blur(6px); }
.quality-center strong { font: 800 64px/1 Manrope, sans-serif; letter-spacing: -4px; }
.quality-center span { margin-top: 7px; opacity: .7; font: 700 11px Manrope, sans-serif; }
.quality-chip { position: absolute; padding: 10px 15px; border: 1px solid rgba(255,255,255,.28); border-radius: 999px; background: rgba(255,255,255,.12); font: 800 11px Manrope, sans-serif; backdrop-filter: blur(8px); }
.chip-1080 { left: 17%; top: 25%; }.chip-720 { right: 13%; top: 31%; }.chip-auto { left: 26%; bottom: 21%; }
.audio-visual { height: 140px; display: flex; align-items: center; justify-content: center; gap: 9px; }
.audio-visual span { width: 8px; height: 35px; border-radius: 9px; background: linear-gradient(#ff5c6e, var(--red)); animation: wave 1.2s ease-in-out infinite alternate; }
.audio-visual span:nth-child(2),.audio-visual span:nth-child(8){height:65px;animation-delay:-.4s}.audio-visual span:nth-child(3),.audio-visual span:nth-child(7){height:95px;animation-delay:-.7s}.audio-visual span:nth-child(4),.audio-visual span:nth-child(6){height:120px;animation-delay:-.2s}.audio-visual span:nth-child(5){height:78px;animation-delay:-.8s}
@keyframes wave { to { transform: scaleY(.55); opacity: .65; } }
.queue-visual { margin: 7px 0 20px; display: flex; flex-direction: column; gap: 8px; }
.queue-visual > div { padding: 12px; display: grid; grid-template-columns: 42px 1fr auto; gap: 11px; align-items: center; border: 1px solid #e8e2e3; border-radius: 12px; background: #fff; box-shadow: 0 5px 15px rgba(54,25,30,.04); }
.queue-visual i { width: 42px; height: 32px; border-radius: 6px; background: linear-gradient(135deg,#ffd8d9,var(--red)); }
.queue-visual span { display: flex; flex-direction: column; gap: 3px; }
.queue-visual b { font-size: 10px; }.queue-visual small { color: #968d8f; font-size: 8px; }.queue-visual em { color: var(--red); font: 700 9px Manrope, sans-serif; font-style: normal; }.queue-visual em.done { display: grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; color: #188454; background: #dcf6e8; }

.how-section { background: #fff5ef; }
.section-heading-left { margin-inline: 0; text-align: left; }
.steps { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; list-style: none; border: 1px solid rgba(72,37,43,.1); border-radius: 26px; overflow: hidden; background: rgba(72,37,43,.1); }
.steps li { position: relative; min-height: 330px; padding: 35px; background: #fffbf8; }
.step-num { position: absolute; top: 24px; right: 26px; color: #d5cbca; font: 800 13px Manrope, sans-serif; }
.step-icon { width: 58px; height: 58px; display: grid; place-items: center; border-radius: 17px; color: var(--red); background: #ffe5e4; }
.step-icon svg { width: 27px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.steps h3 { margin: 72px 0 14px; font-size: 22px; letter-spacing: -1px; }
.steps p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }

.notice-card { padding: 65px 70px; display: grid; grid-template-columns: 80px 1.1fr 1fr; gap: 40px; align-items: center; border: 1px solid var(--line); border-radius: 28px; background: #fff; box-shadow: 0 18px 60px rgba(52,22,27,.06); }
.notice-mark { width: 70px; height: 70px; display: grid; place-items: center; border-radius: 50%; color: var(--red); background: #fff0ee; font: 800 30px Manrope, sans-serif; }
.notice-card h2 { margin: 14px 0 0; font-size: 31px; line-height: 1.35; letter-spacing: -1.6px; }
.notice-card p { margin: 0; padding-left: 40px; border-left: 1px solid var(--line); color: var(--muted); font-size: 14px; line-height: 1.9; }

.download-section { padding-top: 30px; }
.download-card { position: relative; isolation: isolate; padding: 85px 30px; overflow: hidden; border-radius: 36px; color: #fff; background: #e81731; text-align: center; }
.download-glow { position: absolute; z-index: -1; inset: 0; background: radial-gradient(circle at 50% 130%, rgba(255,255,255,.35), transparent 42%), radial-gradient(circle at 15% 0%, rgba(255,255,255,.15), transparent 26%); }
.download-card::before,.download-card::after { content:""; position:absolute; z-index:-1; width:500px; height:500px; border:1px solid rgba(255,255,255,.13); border-radius:50%; }
.download-card::before { left:-280px; top:-260px; }.download-card::after { right:-270px; bottom:-290px; }
.download-mark { width: 62px; margin: 0 auto 28px; border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.14); box-shadow: none; backdrop-filter: blur(8px); }
.download-mark svg { width: 39px; fill: currentColor; }
.download-card h2 { margin: 0; font-size: clamp(40px, 5vw, 62px); line-height: 1.18; letter-spacing: -3.2px; }
.download-card p { margin: 20px 0 30px; color: rgba(255,255,255,.77); font-size: 16px; }
.button-white { color: var(--red); background: #fff; box-shadow: 0 15px 30px rgba(96,0,15,.18); }
.button-white.is-disabled { opacity: .9; cursor: default; }
.download-card small { display: block; margin-top: 17px; color: rgba(255,255,255,.66); font-size: 11px; }

.site-footer { padding: 70px 0 35px; }
.footer-inner > p { margin: 18px 0 50px; color: var(--muted); font-size: 13px; }
.footer-bottom { padding-top: 22px; display: flex; justify-content: space-between; border-top: 1px solid var(--line); color: #9a9193; font-size: 11px; }

[data-reveal] { opacity: 0; transform: translateY(25px); transition: opacity .7s ease, transform .7s ease; }
[data-reveal].is-visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .section-pad { padding-block: 96px; }
  .hero { padding-top: 130px; grid-template-columns: 1fr; text-align: center; }
  .hero-copy { padding-bottom: 0; }
  .hero-actions, .hero-meta { justify-content: center; }
  .hero h1 { letter-spacing: -4px; }
  .hero-visual { min-height: 570px; }
  .app-window { width: min(650px, 92%); transform: none; }
  .card-format { left: 1%; }.card-speed { right: 0; }
  .feature-large { min-height: 650px; }
  .quality-visual { inset: 230px 0 0; }
  .notice-card { grid-template-columns: 70px 1fr; padding: 50px; }
  .notice-card p { grid-column: 1/-1; padding: 25px 0 0; border: 0; border-top: 1px solid var(--line); }
}

@media (max-width: 720px) {
  .section-shell { width: min(100% - 32px, 600px); }
  .site-header { height: 66px; }
  .menu-button { display: block; }
  .menu-button[aria-expanded="true"] > span:nth-child(2) { transform: translateY(3.5px) rotate(45deg); }
  .menu-button[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-3.5px) rotate(-45deg); }
  .site-menu { position: absolute; left: 16px; right: 16px; top: 72px; padding: 20px; display: none; flex-direction: column; gap: 0; align-items: stretch; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,253,251,.98); box-shadow: var(--shadow); }
  .site-menu.is-open { display: flex; }
  .site-menu a { padding: 13px 12px; }
  .nav-cta { margin-top: 7px; text-align: center; }
  .hero { min-height: auto; padding-top: 118px; gap: 48px; }
  .eyebrow { font-size: 10px; }
  .hero h1 { margin-top: 22px; font-size: clamp(46px, 15vw, 64px); letter-spacing: -3.5px; }
  .hero-lead { font-size: 16px; }
  .desktop-break { display: none; }
  .hero-actions { flex-direction: column; }
  .hero-meta { flex-wrap: wrap; }
  .hero-visual { min-height: 430px; }
  .app-window { width: 100%; }
  .video-art { min-height: 160px; }
  .download-sheet { width: 93%; bottom: -45px; grid-template-columns: 54px 1fr auto; }
  .thumb { height: 45px; }
  .quality-row b:nth-child(3) { display: none; }
  .floating-card { display: none; }
  .orbit-one { width: 430px; height: 430px; }.orbit-two { width: 330px; height: 330px; }
  .proof-strip { margin-top: 35px; }
  .section-pad { padding-block: 80px; }
  .section-heading { margin-bottom: 38px; }
  .section-heading h2 { font-size: 37px; letter-spacing: -2px; }
  .section-heading p { font-size: 15px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-large { grid-column: auto; min-height: 600px; }
  .feature-card { min-height: 410px; padding: 28px; border-radius: 24px; }
  .feature-card h3 { font-size: 27px; }
  .quality-visual { inset: 235px -70px -40px; }
  .ring-a { width: 330px; height: 330px; }.ring-b { width: 250px; height: 250px; }
  .quality-center { width: 145px; height: 145px; }.quality-center strong { font-size: 48px; }
  .steps { grid-template-columns: 1fr; }
  .steps li { min-height: 260px; }
  .steps h3 { margin-top: 44px; }
  .notice-card { grid-template-columns: 56px 1fr; gap: 23px; padding: 35px 25px; }
  .notice-mark { width: 56px; height: 56px; }
  .notice-card h2 { font-size: 24px; }
  .download-section { padding-top: 10px; }
  .download-card { padding: 68px 22px; border-radius: 26px; }
  .download-card h2 { font-size: 39px; letter-spacing: -2.3px; }
  .site-footer { padding-top: 45px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}