:root {
  --bg: #0f0c29;
  --bg-mid: #302b63;
  --bg-end: #24243e;
  --text: #f3f3fa;
  --muted: #b8b8d1;
  --faint: #8585a8;
  --mint: #a8edea;
  --pink: #fed6e3;
  --violet: #bca7ff;
  --glass: rgba(255, 255, 255, .055);
  --glass-strong: rgba(8, 7, 28, .56);
  --line: rgba(255, 255, 255, .11);
  --shadow: 0 24px 70px rgba(0, 0, 0, .28);
  --radius: 20px;
  --shell: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  line-height: 1.65;
  background:
    radial-gradient(circle at 72% 12%, rgba(112, 88, 190, .23), transparent 27rem),
    linear-gradient(135deg, var(--bg) 0%, var(--bg-mid) 50%, var(--bg-end) 100%);
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  opacity: .18;
  pointer-events: none;
  background-image: radial-gradient(rgba(255,255,255,.62) .6px, transparent .7px);
  background-size: 36px 36px;
  mask-image: linear-gradient(to bottom, #000, transparent 72%);
}
a { color: inherit; }
button, input { font: inherit; }
button { color: inherit; }
code, .command-name { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
code { color: var(--mint); }

.shell { width: min(calc(100% - 40px), var(--shell)); margin-inline: auto; }
.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; left: 12px; top: -80px; z-index: 100; padding: 10px 16px; border-radius: 10px; color: #15122f; background: var(--mint); font-weight: 800; transition: top .2s; }
.skip-link:focus { top: 12px; }
.page-glow { position: fixed; z-index: -2; width: 28rem; height: 28rem; border-radius: 50%; filter: blur(110px); opacity: .12; pointer-events: none; }
.page-glow--one { top: 18%; left: -12rem; background: var(--mint); }
.page-glow--two { right: -13rem; bottom: 12%; background: var(--pink); }

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255,255,255,.075);
  background: rgba(15, 12, 41, .76);
  backdrop-filter: blur(18px) saturate(135%);
  -webkit-backdrop-filter: blur(18px) saturate(135%);
}
.nav-inner { width: min(calc(100% - 40px), var(--shell)); min-height: 72px; margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 38px; height: 38px; color: #1a1738; border-radius: 13px; font-size: 25px; line-height: 1; background: linear-gradient(135deg, var(--mint), var(--pink)); box-shadow: 0 7px 22px rgba(168,237,234,.18); }
.brand > span:last-child { display: grid; line-height: 1.05; }
.brand strong { letter-spacing: .17em; font-size: 15px; }
.brand small { margin-top: 5px; color: var(--muted); font-size: 11px; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: #d7d5e7; font-size: 14px; font-weight: 650; text-decoration: none; transition: color .2s; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--mint); }
.nav-links .nav-cta { padding: 9px 18px; color: #17142f; border-radius: 999px; background: linear-gradient(45deg, var(--mint), var(--pink)); }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 0; border-radius: 12px; background: rgba(255,255,255,.06); cursor: pointer; }
.menu-toggle span { display: block; width: 22px; height: 2px; margin: 5px auto; border-radius: 2px; background: var(--text); transition: .25s; }

.hero {
  position: relative;
  min-height: 690px;
  margin-top: 20px;
  padding: 88px 28px 82px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(0,0,0,.36), rgba(16,13,46,.24));
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(circle at 50% 28%, rgba(168,237,234,.11), transparent 18rem); }
.hero-orbit { position: absolute; top: 52px; left: 50%; width: 330px; height: 330px; transform: translateX(-50%); border: 1px solid rgba(168,237,234,.12); border-radius: 50%; pointer-events: none; }
.hero-orbit::before, .hero-orbit::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid rgba(254,214,227,.09); }
.hero-orbit::before { inset: 36px; }
.hero-orbit::after { inset: 78px; }
.hero-orbit span { position: absolute; top: 44px; right: 28px; width: 6px; height: 6px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 14px var(--mint); }
.hero-orbit i { position: absolute; bottom: 38px; left: 52px; width: 4px; height: 4px; border-radius: 50%; background: var(--pink); box-shadow: 0 0 12px var(--pink); }
.moon-icon { position: relative; z-index: 1; display: inline-block; margin-bottom: 17px; font-size: clamp(68px, 7vw, 88px); line-height: 1; filter: drop-shadow(0 12px 24px rgba(168,237,234,.14)); animation: float 3s ease-in-out infinite; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-18px); } }
.eyebrow { position: relative; z-index: 1; margin: 0 0 15px; color: var(--mint); font-size: 12px; font-weight: 800; letter-spacing: .2em; text-transform: uppercase; }
.hero h1 { position: relative; z-index: 1; margin: 0; line-height: .9; }
.hero h1 span { display: block; font-size: clamp(56px, 8vw, 92px); letter-spacing: .1em; text-indent: .1em; color: transparent; background: linear-gradient(45deg, var(--mint), var(--pink)); -webkit-background-clip: text; background-clip: text; }
.hero h1 small { display: block; margin-top: 23px; color: #f3f2fa; font-size: clamp(19px, 2.4vw, 28px); letter-spacing: .35em; text-indent: .35em; font-weight: 650; }
.hero-copy { position: relative; z-index: 1; margin: 26px 0 22px; color: var(--muted); font-size: clamp(17px, 2vw, 21px); }
.hero-badges { position: relative; z-index: 1; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.badge { display: inline-flex; align-items: center; min-height: 38px; padding: 7px 16px; color: #d9d7e7; border: 1px solid rgba(255,255,255,.16); border-radius: 999px; background: rgba(255,255,255,.07); font-size: 13px; }
.hero-actions { position: relative; z-index: 1; display: flex; justify-content: center; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; min-height: 52px; padding: 13px 26px; align-items: center; justify-content: center; gap: 12px; border: 1px solid transparent; border-radius: 999px; font-size: 15px; font-weight: 800; text-decoration: none; transition: transform .25s, box-shadow .25s, border-color .25s, background .25s; }
.button:hover { transform: translateY(-3px); }
.button--primary { color: #17142f; background: linear-gradient(45deg, var(--mint), var(--pink)); box-shadow: 0 8px 28px rgba(168,237,234,.24); }
.button--primary:hover { box-shadow: 0 12px 35px rgba(168,237,234,.38); }
.button--ghost { color: #e7e6f0; border-color: rgba(255,255,255,.18); background: rgba(255,255,255,.055); }
.button--ghost:hover { border-color: rgba(168,237,234,.38); background: rgba(168,237,234,.08); }
.scroll-cue { position: absolute; bottom: 24px; left: 50%; width: 25px; height: 39px; transform: translateX(-50%); border: 1px solid rgba(255,255,255,.27); border-radius: 999px; }
.scroll-cue span { position: absolute; left: 50%; top: 8px; width: 3px; height: 7px; transform: translateX(-50%); border-radius: 4px; background: var(--mint); animation: scroll-cue 1.8s ease-in-out infinite; }
@keyframes scroll-cue { 0% { opacity: 0; transform: translate(-50%, -2px); } 35% { opacity: 1; } 100% { opacity: 0; transform: translate(-50%, 12px); } }

.content-section, .commands-section { padding-top: 112px; }
.section-heading { max-width: 700px; margin: 0 auto 42px; text-align: center; }
.section-heading h2, .cta h2 { margin: 0; color: #f6f5fb; font-size: clamp(30px, 4vw, 44px); line-height: 1.23; letter-spacing: -.035em; }
.section-heading > p:last-child { margin: 17px auto 0; color: var(--muted); font-size: 16px; }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.feature-card { position: relative; min-height: 290px; padding: 34px 27px 30px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--glass); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); transition: transform .3s, border-color .3s, box-shadow .3s; }
.feature-card::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; transform: scaleX(0); background: linear-gradient(90deg, transparent, var(--mint), var(--pink), transparent); transition: transform .3s; }
.feature-card:hover { transform: translateY(-9px); border-color: rgba(168,237,234,.28); box-shadow: 0 18px 44px rgba(0,0,0,.2), 0 10px 32px rgba(168,237,234,.08); }
.feature-card:hover::after { transform: scaleX(1); }
.feature-icon { display: grid; place-items: center; width: 58px; height: 58px; margin-bottom: 30px; border: 1px solid rgba(255,255,255,.1); border-radius: 18px; background: rgba(255,255,255,.06); font-size: 30px; }
.feature-number { position: absolute; top: 23px; right: 25px; margin: 0; color: rgba(255,255,255,.18); font: 700 13px/1 "SFMono-Regular", Consolas, monospace; letter-spacing: .12em; }
.feature-card h3 { margin: 0 0 12px; color: var(--mint); font-size: 21px; }
.feature-card p:last-child { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }

.command-panel { padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(0,0,0,.28); box-shadow: var(--shadow); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.search-wrap { position: relative; max-width: 820px; margin: 0 auto; }
.search-wrap svg { position: absolute; top: 50%; left: 20px; width: 21px; fill: none; stroke: var(--muted); stroke-width: 1.8; transform: translateY(-50%); }
.search-wrap input { width: 100%; height: 58px; padding: 0 108px 0 55px; color: var(--text); caret-color: var(--mint); border: 1px solid rgba(255,255,255,.13); border-radius: 16px; outline: 0; background: rgba(255,255,255,.065); transition: border-color .2s, box-shadow .2s, background .2s; }
.search-wrap input::placeholder { color: #8e8da9; }
.search-wrap input:focus { border-color: rgba(168,237,234,.55); background: rgba(255,255,255,.085); box-shadow: 0 0 0 4px rgba(168,237,234,.08); }
.search-wrap kbd { position: absolute; top: 50%; right: 17px; min-width: 28px; padding: 2px 8px; transform: translateY(-50%); color: var(--faint); border: 1px solid rgba(255,255,255,.15); border-radius: 7px; background: rgba(0,0,0,.16); text-align: center; font-size: 12px; }
.search-clear { position: absolute; top: 50%; right: 13px; padding: 7px 10px; transform: translateY(-50%); border: 0; border-radius: 8px; color: var(--muted); background: rgba(255,255,255,.06); font-size: 12px; cursor: pointer; }
.command-meta { max-width: 820px; margin: 13px auto 20px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.command-meta p { margin: 0; color: var(--faint); font-size: 13px; }
.text-button { padding: 3px 0; border: 0; color: var(--mint); background: none; font-size: 13px; font-weight: 700; cursor: pointer; }
.command-note { max-width: 820px; margin: 0 auto 24px; padding: 15px 17px; display: flex; gap: 12px; border: 1px solid rgba(188,167,255,.16); border-radius: 13px; background: rgba(188,167,255,.055); color: var(--muted); font-size: 13px; }
.command-note span { color: var(--violet); font-size: 16px; }
.command-note p { margin: 0; }
.command-note strong { color: #ddd8ff; }
.accordion-list { max-width: 900px; margin: 0 auto; display: grid; gap: 13px; }
.accordion { overflow: hidden; border: 1px solid var(--line); border-radius: 15px; background: rgba(255,255,255,.038); transition: border-color .25s, background .25s; }
.accordion.is-open { border-color: rgba(168,237,234,.23); background: rgba(255,255,255,.052); }
.accordion-toggle { width: 100%; min-height: 68px; padding: 15px 20px; display: grid; grid-template-columns: 42px 1fr auto 22px; align-items: center; gap: 13px; border: 0; background: transparent; text-align: left; cursor: pointer; }
.category-icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: rgba(255,255,255,.07); font-size: 20px; }
.category-name { display: block; color: #f1f0f8; font-size: 16px; font-weight: 800; }
.category-description { display: block; margin-top: 2px; color: var(--faint); font-size: 12px; font-weight: 500; }
.category-count { min-width: 54px; padding: 4px 10px; color: var(--mint); border: 1px solid rgba(168,237,234,.18); border-radius: 999px; background: rgba(168,237,234,.055); text-align: center; font-size: 12px; font-weight: 750; }
.accordion-chevron { position: relative; width: 18px; height: 18px; transition: transform .28s; }
.accordion-chevron::before, .accordion-chevron::after { content: ""; position: absolute; top: 8px; width: 9px; height: 1.5px; border-radius: 2px; background: var(--muted); }
.accordion-chevron::before { left: 1px; transform: rotate(45deg); }
.accordion-chevron::after { right: 1px; transform: rotate(-45deg); }
.accordion.is-open .accordion-chevron { transform: rotate(180deg); }
.accordion-content { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .36s cubic-bezier(.2,.8,.2,1); }
.accordion.is-open .accordion-content { grid-template-rows: 1fr; }
.accordion-inner { min-height: 0; overflow: hidden; }
.command-items { padding: 0 18px 18px; display: grid; gap: 10px; }
.command-item { padding: 17px 18px 16px; border-left: 3px solid var(--mint); border-radius: 11px; background: rgba(255,255,255,.048); transition: background .2s, transform .2s; }
.command-item:hover { transform: translateX(3px); background: rgba(255,255,255,.075); }
.command-topline { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.command-name { color: var(--mint); font-size: 15px; font-weight: 800; overflow-wrap: anywhere; }
.mini-badge { padding: 2px 7px; border: 1px solid rgba(255,255,255,.12); border-radius: 6px; color: #c9c7d8; background: rgba(255,255,255,.05); font-size: 10px; font-weight: 800; letter-spacing: .02em; }
.mini-badge--admin { color: #ffd9e7; border-color: rgba(254,170,201,.26); background: rgba(254,170,201,.08); }
.mini-badge--room { color: #dcd3ff; border-color: rgba(188,167,255,.25); background: rgba(188,167,255,.08); }
.mini-badge--internal { color: #ffe0ad; border-color: rgba(255,202,117,.25); background: rgba(255,202,117,.08); }
.command-description { margin: 8px 0 0; color: var(--muted); font-size: 13px; line-height: 1.7; }
.alias-list { margin: 10px 0 0; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; color: var(--faint); font-size: 11px; }
.alias-list strong { margin-right: 2px; color: #9796b3; font-weight: 650; }
.alias-chip { padding: 2px 7px; border-radius: 6px; background: rgba(0,0,0,.18); font-family: "SFMono-Regular", Consolas, monospace; overflow-wrap: anywhere; }
.empty-state { max-width: 820px; margin: 25px auto 0; padding: 46px 20px; text-align: center; border: 1px dashed rgba(255,255,255,.14); border-radius: 15px; }
.empty-state span { font-size: 42px; }
.empty-state h3 { margin: 12px 0 5px; }
.empty-state p { margin: 0; color: var(--muted); }

.steps { max-width: 880px; margin: 0 auto; display: grid; gap: 15px; }
.step-card { padding: 22px 24px; display: flex; align-items: flex-start; gap: 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--glass); }
.step-number { flex: 0 0 48px; color: var(--mint); font: 800 20px/1.45 "SFMono-Regular", Consolas, monospace; }
.step-card h3 { margin: 0 0 5px; color: var(--pink); font-size: 18px; }
.step-card p { margin: 0; color: var(--muted); font-size: 14px; }
.cta { position: relative; margin-top: 112px; margin-bottom: 88px; padding: 72px 25px; overflow: hidden; text-align: center; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(0,0,0,.29); box-shadow: var(--shadow); }
.cta::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 50% 25%, rgba(168,237,234,.1), transparent 18rem); }
.cta-moon { position: absolute; right: 7%; top: -47px; color: rgba(254,214,227,.045); font-size: 250px; line-height: 1; transform: rotate(-14deg); }
.cta > *:not(.cta-moon) { position: relative; }
.cta > p:not(.eyebrow) { margin: 18px 0 28px; color: var(--muted); }
.site-footer { border-top: 1px solid rgba(255,255,255,.09); background: rgba(7,6,24,.2); }
.footer-inner { min-height: 150px; padding-block: 35px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 30px; }
.footer-inner > p { margin: 0; color: var(--faint); font-size: 13px; }
.copyright { text-align: right; }
.noscript { position: fixed; left: 0; right: 0; bottom: 0; z-index: 99; padding: 12px; color: #17142f; background: var(--pink); text-align: center; font-weight: 700; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-inner > p:first-of-type { text-align: right; }
  .copyright { grid-column: 1 / -1; text-align: center; }
}

@media (max-width: 720px) {
  html { scroll-padding-top: 76px; }
  .shell { width: min(calc(100% - 28px), var(--shell)); }
  .nav-inner { width: calc(100% - 28px); min-height: 64px; }
  .menu-toggle { display: block; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav-links { position: absolute; top: 64px; left: 14px; right: 14px; padding: 15px; display: grid; gap: 4px; border: 1px solid var(--line); border-radius: 15px; background: rgba(17,14,45,.97); box-shadow: 0 18px 45px rgba(0,0,0,.3); transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity .2s, transform .2s, visibility .2s; }
  .nav-links.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav-links a { padding: 11px 12px; border-radius: 9px; }
  .nav-links .nav-cta { text-align: center; }
  .hero { min-height: 620px; margin-top: 14px; padding: 74px 18px 68px; }
  .hero-orbit { top: 54px; width: 270px; height: 270px; }
  .hero-copy br { display: none; }
  .hero-actions { width: min(100%, 360px); flex-direction: column; }
  .button { width: 100%; }
  .content-section, .commands-section { padding-top: 82px; }
  .section-heading { margin-bottom: 30px; }
  .section-heading > p:last-child { font-size: 14px; }
  .features-grid { grid-template-columns: 1fr; gap: 14px; }
  .feature-card { min-height: 0; padding: 26px 23px; }
  .feature-icon { margin-bottom: 21px; }
  .command-panel { padding: 20px 13px; }
  .search-wrap input { height: 54px; padding-right: 54px; font-size: 14px; }
  .command-meta { padding-inline: 4px; }
  .command-note { font-size: 12px; }
  .accordion-toggle { min-height: 66px; padding: 13px 12px; grid-template-columns: 38px minmax(0, 1fr) auto 18px; gap: 9px; }
  .category-icon { width: 38px; height: 38px; }
  .category-description { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .category-count { min-width: auto; padding: 3px 7px; }
  .command-items { padding: 0 10px 10px; }
  .command-item { padding: 15px 14px; }
  .step-card { padding: 20px; gap: 12px; }
  .step-number { flex-basis: 38px; font-size: 17px; }
  .cta { margin-top: 82px; margin-bottom: 64px; padding: 58px 20px; }
  .cta .button { width: auto; }
  .footer-inner { min-height: 190px; grid-template-columns: 1fr; justify-items: center; gap: 14px; text-align: center; }
  .footer-inner > p:first-of-type, .copyright { grid-column: auto; text-align: center; }
}

@media (max-width: 390px) {
  .hero h1 span { font-size: 50px; }
  .hero h1 small { font-size: 18px; }
  .hero-badges { gap: 7px; }
  .badge { padding-inline: 12px; font-size: 12px; }
  .category-description { display: none; }
  .command-meta { align-items: flex-start; }
}

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