/* ============================================================
   Ellion Bare Metal - 디자인 토큰 (ufostack.com 디자인 언어 차용)
   ============================================================ */
:root {
  --void: #06070f;
  --void-2: #0a0d1a;
  --panel: #0e1326;
  --panel-2: #131a30;
  --line: rgba(255, 255, 255, 0.10);
  --line-strong: rgba(255, 255, 255, 0.18);
  --text: #e9edf6;
  --muted: #8b93a7;
  --alien: #5dffb0;
  --alien-ink: #04140c;
  --alien-glow: rgba(93, 255, 176, 0.4);
  --plasma: #a855f7;
  --cosmic: #3b82f6;
  --cyan: #22d3ee;
  --amber: #f5a524;
  --c-gpu: #a855f7;
  --c-ai: #22d3ee;
  --c-dedicated: #3b82f6;
  --font-body: Inter, "Pretendard Variable", Pretendard, system-ui, -apple-system, "Segoe UI", Roboto, "Apple SD Gothic Neo", "Noto Sans KR", Arial, sans-serif;
  --font-head: "Space Grotesk", Inter, "Pretendard Variable", Pretendard, "Noto Sans KR", system-ui, sans-serif;
  --font-mono: Orbitron, ui-monospace, SFMono-Regular, Menlo, monospace;
  --radius: 16px;
  --max: 1152px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--void);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
h1, h2, h3 { font-family: var(--font-head); font-weight: 600; letter-spacing: -0.02em; margin: 0; }
h1 { font-size: 48px; line-height: 1.05; letter-spacing: -1.2px; }
h2 { font-size: 30px; line-height: 1.15; }
h3 { font-size: 17px; }
p { margin: 0; }
.muted { color: var(--muted); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.mono-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cosmic);
}
.mono-label.alien { color: var(--alien); }
.mono-label.plasma { color: var(--plasma); }
.mono-label.cyan { color: var(--cyan); }
.mono-label.amber { color: var(--amber); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 28px; border-radius: 9999px;
  font-size: 14px; font-weight: 700; white-space: nowrap;
  border: 1px solid var(--line-strong); background: rgba(255,255,255,0.02); color: var(--text);
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.btn:hover { background: rgba(255,255,255,0.06); transform: translateY(-1px); }
.btn-accent {
  background: var(--alien); border-color: var(--alien); color: var(--alien-ink);
  box-shadow: 0 0 0 1px var(--alien-glow), 0 8px 28px -8px var(--alien-glow);
}
.btn-accent:hover { background: #7dffc0; }
.btn-amber { background: var(--amber); border-color: var(--amber); color: #1a1000; box-shadow: 0 0 0 1px rgba(245,165,36,.4), 0 8px 28px -8px rgba(245,165,36,.5); }
.btn-amber:hover { background: #ffb840; }
.btn-sm { height: 36px; padding: 0 18px; font-size: 13px; }
.btn-ghost { border-color: transparent; background: transparent; font-weight: 600; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* ---------- status bar + header ---------- */
.statusbar {
  font-size: 13px; text-align: center; padding: 8px 16px;
  background: rgba(93,255,176,0.08); border-bottom: 1px solid var(--line); color: var(--text);
}
.statusbar a { color: var(--alien); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }
header.site {
  position: sticky; top: 0; z-index: 40;
  background: rgba(6,7,15,0.72); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 700; font-size: 17px; letter-spacing: -0.01em; }
.logo-mark {
  width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--alien), var(--cyan)); color: var(--alien-ink);
  font-family: var(--font-mono); font-size: 14px; font-weight: 700;
  box-shadow: 0 0 18px -2px var(--alien-glow);
}
nav.main { display: flex; gap: 4px; }
nav.main a { padding: 8px 12px; border-radius: 8px; font-size: 14px; font-weight: 500; color: var(--muted); transition: color .15s, background .15s; }
nav.main a:hover, nav.main a.active { color: var(--text); background: rgba(255,255,255,0.05); }
.hdr-right { display: flex; align-items: center; gap: 10px; }
.hdr-right .mail { font-size: 13px; color: var(--muted); }
.menu-btn { display: none; }
.seg-sm { padding: 3px; font-size: 12px; }
.seg-sm button { padding: 4px 10px; font-weight: 600; }
.select-sm { padding: 6px 30px 6px 10px; font-size: 13px; border-radius: 9999px; }

/* ---------- hero ---------- */
.hero {
  position: relative; border-bottom: 1px solid var(--line); overflow: hidden;
  background:
    radial-gradient(60% 50% at 12% 0px, rgba(168,85,247,0.16), transparent 60%),
    radial-gradient(55% 45% at 92% 8%, rgba(59,130,246,0.16), transparent 60%),
    radial-gradient(70% 60% at 75% 100%, rgba(93,255,176,0.10), transparent 62%),
    radial-gradient(1px 1px at 24px 36px, rgba(255,255,255,0.35), transparent 100%),
    radial-gradient(1px 1px at 180px 120px, rgba(255,255,255,0.25), transparent 100%),
    radial-gradient(1px 1px at 420px 60px, rgba(255,255,255,0.3), transparent 100%),
    radial-gradient(1px 1px at 700px 200px, rgba(255,255,255,0.2), transparent 100%),
    radial-gradient(1px 1px at 960px 40px, rgba(255,255,255,0.3), transparent 100%),
    radial-gradient(1px 1px at 1200px 160px, rgba(255,255,255,0.25), transparent 100%);
}
.hero .wrap { padding: 72px 24px 56px; position: relative; }
.hero-inner { max-width: 640px; position: relative; z-index: 1; }
.hero h1 { margin: 14px 0 16px; }
.hero .lead { font-size: 18px; color: var(--muted); max-width: 560px; }
.pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; padding: 0; list-style: none; }
.pills li { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line-strong); border-radius: 9999px; padding: 6px 12px; font-size: 14px; }
.pills li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--alien); box-shadow: 0 0 8px 1px var(--alien); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero-star {
  position: absolute; right: 40px; top: 40px; width: 300px; height: 300px; z-index: 0; pointer-events: none;
  opacity: .9;
}

/* ---------- sections ---------- */
section.block { padding: 64px 0; border-bottom: 1px solid var(--line); }
.sec-head { max-width: 640px; }
.sec-head h2 { margin: 12px 0 10px; }
.sec-head p { color: var(--muted); }

/* ---------- plans ---------- */
.toolbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; margin-top: 28px; }
.seg { display: inline-flex; align-items: center; border: 1px solid var(--line-strong); border-radius: 9999px; padding: 4px; font-size: 14px; }
.seg button { border: 0; background: transparent; color: var(--muted); border-radius: 9999px; padding: 6px 16px; font-weight: 500; display: inline-flex; align-items: center; gap: 6px; }
.seg button.on { background: var(--alien); color: var(--alien-ink); }
.seg .chip { font-size: 11px; font-weight: 700; padding: 2px 6px; border-radius: 4px; background: rgba(93,255,176,0.15); color: var(--alien); }
.seg button.on .chip { background: rgba(4,20,12,0.15); color: var(--alien-ink); }
.select-inline {
  appearance: none; -webkit-appearance: none; background: var(--panel); color: var(--text);
  border: 1px solid var(--line-strong); border-radius: 10px; padding: 8px 34px 8px 12px; font-size: 14px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238b93a7' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center;
}
.grid-plans { display: grid; gap: 16px; margin-top: 28px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 24px 60px -24px rgba(0,0,0,0.9);
}
.plan { padding: 22px; display: flex; flex-direction: column; gap: 16px; position: relative; overflow: hidden; transition: border-color .2s, transform .2s; }
.plan:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.plan::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 2px; background: linear-gradient(90deg, var(--plan-c), transparent); opacity: .9; }
.plan[data-accent="gpu"] { --plan-c: var(--c-gpu); }
.plan[data-accent="ai"] { --plan-c: var(--c-ai); }
.plan-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.badge { display: inline-flex; align-items: center; gap: 6px; border-radius: 6px; padding: 3px 8px; font-size: 12px; font-weight: 600; border: 1px solid; }
.badge.cat { background: color-mix(in srgb, var(--plan-c) 12%, transparent); color: var(--plan-c); border-color: color-mix(in srgb, var(--plan-c) 35%, transparent); }
.status { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; }
.status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; }
.status.available { color: var(--alien); } .status.available::before { background: var(--alien); box-shadow: 0 0 8px 1px var(--alien); }
.status.reserve { color: var(--amber); } .status.reserve::before { background: var(--amber); box-shadow: 0 0 8px 1px var(--amber); animation: pulse 1.6s infinite; }
.status.soldout { color: var(--muted); } .status.soldout::before { background: var(--muted); }
@keyframes pulse { 0%,100% { opacity: 1 } 50% { opacity: .35 } }
.plan h3 { font-size: 19px; line-height: 1.3; }
.plan .loc { font-size: 13px; color: var(--muted); margin-top: 4px; }
.plan .tagline { font-size: 14px; color: var(--muted); }
.specs { display: grid; grid-template-columns: 84px 1fr; row-gap: 8px; column-gap: 12px; font-size: 14px; margin: 0; }
.specs dt { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; padding-top: 2px; }
.specs dd { margin: 0; }
.os-row { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
.plan-foot { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 12px; border-top: 1px solid var(--line); }
.price { font-family: var(--font-head); font-size: 26px; font-weight: 700; letter-spacing: -0.02em; }
.price small { font-size: 13px; color: var(--muted); font-weight: 500; font-family: var(--font-body); letter-spacing: 0; }
.price-note { font-size: 12px; color: var(--muted); margin-top: 2px; }
.empty { padding: 40px; text-align: center; color: var(--muted); grid-column: 1 / -1; }

/* ---------- how it works ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 28px; counter-reset: step; }
.step { padding: 20px; position: relative; }
.step .num { font-family: var(--font-mono); font-size: 12px; color: var(--alien); letter-spacing: .15em; }
.step h3 { margin: 10px 0 6px; }
.step p { font-size: 14px; color: var(--muted); }

/* ---------- features ---------- */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 28px; }
.feat { padding: 20px; }
.feat .icon { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: rgba(93,255,176,0.1); color: var(--alien); margin-bottom: 14px; }
.feat h3 { margin-bottom: 6px; }
.feat p { font-size: 14px; color: var(--muted); }

/* ---------- use cases ---------- */
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.tags span { border: 1px solid var(--line-strong); border-radius: 9999px; padding: 8px 16px; font-size: 14px; background: rgba(255,255,255,0.02); }

/* ---------- faq ---------- */
.faq { margin-top: 24px; max-width: 760px; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; padding: 18px 0; font-weight: 500; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--alien); font-size: 20px; font-weight: 300; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .ans { padding: 0 0 18px; color: var(--muted); font-size: 15px; }

/* ---------- cta + footer ---------- */
.cta { text-align: center; padding: 80px 0; }
.cta h2 { font-size: 36px; margin: 12px 0 16px; }
.cta p { color: var(--muted); }
.cta .hero-cta { justify-content: center; }
footer.site { padding: 32px 0; font-size: 13px; color: var(--muted); }
footer.site .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
footer.site a { color: var(--text); }

/* ---------- modal ---------- */
.modal-bg { position: fixed; inset: 0; background: rgba(6,7,15,0.8); backdrop-filter: blur(6px); z-index: 60; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal-bg.open { display: flex; }
.modal { width: 100%; max-width: 520px; padding: 24px; max-height: 92vh; overflow: auto; }
.modal-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.modal-head h3 { font-size: 20px; margin-top: 6px; }
.x { border: 0; background: transparent; color: var(--muted); font-size: 22px; line-height: 1; padding: 4px 8px; border-radius: 8px; }
.x:hover { background: rgba(255,255,255,0.06); color: var(--text); }
.server-line { margin-top: 8px; font-size: 13px; color: var(--muted); }
.server-line b { color: var(--text); }
form.req { display: grid; gap: 14px; margin-top: 18px; }
.field { display: grid; gap: 6px; }
.field label { font-size: 13px; font-weight: 600; }
.field label .opt { color: var(--muted); font-weight: 400; }
.field input, .field select, .field textarea {
  width: 100%; background: var(--void-2); color: var(--text); border: 1px solid var(--line-strong); border-radius: 10px; padding: 10px 12px; font: inherit; font-size: 14px;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--alien); box-shadow: 0 0 0 3px rgba(93,255,176,0.15); }
.field textarea { min-height: 80px; resize: vertical; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--muted); }
.consent input { margin-top: 3px; }
.form-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.hint { font-size: 12px; color: var(--muted); }
.done { text-align: center; padding: 24px 8px; display: none; }
.done .ok { width: 56px; height: 56px; border-radius: 50%; margin: 0 auto 14px; display: grid; place-items: center; background: rgba(93,255,176,0.12); color: var(--alien); font-size: 28px; }
.done h3 { margin-bottom: 8px; }
.done p { color: var(--muted); font-size: 14px; }
.err { display: none; font-size: 13px; color: #ff8a8a; background: rgba(255,90,90,0.08); border: 1px solid rgba(255,90,90,0.25); border-radius: 10px; padding: 10px 12px; }
.err a { color: var(--alien); text-decoration: underline; }

/* ---------- toast ---------- */
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(20px); opacity: 0; background: var(--panel-2); border: 1px solid var(--line-strong); border-radius: 12px; padding: 10px 16px; font-size: 14px; z-index: 70; transition: .25s; pointer-events: none; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .grid-4, .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  h1 { font-size: 36px; }
  h2 { font-size: 26px; }
  .hero .wrap { padding: 48px 20px 40px; }
  .hero-star { display: none; }
  .grid-plans { grid-template-columns: 1fr; }
  nav.main, .hdr-right .mail, .hdr-right [data-open] { display: none; }
  .hdr-right { gap: 6px; }
  .menu-btn { display: inline-flex; }
  nav.main.open { display: flex; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; background: var(--void-2); border-bottom: 1px solid var(--line); padding: 8px 16px 12px; }
  .row2 { grid-template-columns: 1fr; }
  .cta h2 { font-size: 28px; }
}
@media (max-width: 520px) {
  .grid-4, .steps { grid-template-columns: 1fr; }
  .specs { grid-template-columns: 72px 1fr; }
}