:root {
  color-scheme: dark;
  --background: #070d11;
  --surface: #0d151a;
  --raised: #121c22;
  --foreground: #f4f7f6;
  --muted: #a3b3ba;
  --line: rgb(175 201 210 / 16%);
  --mint: #74e5cb;
  --amber: #f2b75b;
  font-family: "Pretendard Variable", "Pretendard", "Noto Sans KR", "Malgun Gothic", "Apple SD Gothic Neo", "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { background: var(--background); }
body { margin: 0; min-width: 0; color: var(--foreground); background: radial-gradient(ellipse at 75% 8%, #12332f55, transparent 42rem), radial-gradient(ellipse at 10% 75%, #14334422, transparent 32rem), var(--background); line-height: 1.55; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
svg { display: block; width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
a, button, summary { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--mint); outline-offset: 5px; }
::selection { color: #071713; background: var(--mint); }
.page-shell { width: min(1080px, calc(100% - 80px)); margin-inline: auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 31px 0 38px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 45px; height: 45px; stroke: none; }
.brand-wordmark { display: block; font-size: 18px; font-weight: 800; letter-spacing: .17em; line-height: 1.2; }
.brand-caption { display: block; margin-top: 4px; color: var(--muted); font-size: 11px; font-weight: 500; letter-spacing: .015em; }
.admin-link { display: inline-flex; align-items: center; gap: 8px; padding: 10px 13px; border: 1px solid var(--line); border-radius: 10px; background: #101c2199; font-size: 12px; font-weight: 600; transition: background .16s, border-color .16s; }
.admin-link svg { width: 17px; height: 17px; color: var(--muted); }
.admin-link .arrow-icon { width: 14px; height: 14px; margin-left: 6px; }
.admin-link:hover { border-color: #74e5cb66; background: #17332d; }
.release-card { display: grid; grid-template-columns: 1.15fr 1fr; isolation: isolate; position: relative; border: 1px solid #345047; border-radius: 28px; background: linear-gradient(115deg, #142323, #101c22 57%, #142c29); box-shadow: 0 24px 70px #0004; }
.release-card::before { content: ""; position: absolute; z-index: -1; inset: 0; border-radius: inherit; background: radial-gradient(ellipse at 82% 20%, #74e5cb13, transparent 50%); pointer-events: none; }
.release-intro { min-width: 0; padding: 51px 24px 47px 48px; }
.eyebrow { display: flex; align-items: center; gap: 9px; color: #b8cfca; font-size: 10px; font-weight: 750; letter-spacing: .12em; }
.eyebrow-line { width: 22px; height: 2px; border-radius: 2px; background: var(--mint); }
h1 { margin: 16px 0 18px; font-size: clamp(24px, 2.4vw, 33px); font-weight: 750; line-height: 1.3; letter-spacing: -.055em; }
.hero-copy { margin: 0; color: #c7d7d2; font-size: clamp(20px, 2.15vw, 28px); font-weight: 400; line-height: 1.55; letter-spacing: -.05em; }
.hero-copy strong { color: var(--foreground); font-weight: 650; }
.intro-description { margin: 17px 0 23px; color: var(--muted); font-size: 13px; line-height: 1.8; letter-spacing: -.025em; }
.release-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }
.version-label { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; font-weight: 650; color: #d3e1dc; }
.version-label > span { color: #6c827c; }
.help-wrap { position: relative; display: inline-flex; align-items: center; gap: 6px; }
.candidate-label { display: inline-flex; align-items: center; gap: 5px; padding: 4px 8px; border: 1px solid #f2b75b33; border-radius: 6px; color: #f4c77f; background: #f2b75b0b; font-size: 10px; font-weight: 600; }
.candidate-label svg { width: 13px; height: 13px; }
.help-button { display: inline-flex; align-items: center; justify-content: center; width: 23px; height: 23px; padding: 0; border: 1px solid #6d837d; border-radius: 50%; color: #ccdad6; background: #1b2d29; cursor: help; font-size: 13px; font-weight: 650; }
.help-button:hover, .help-button:focus-visible { color: #0b2720; border-color: var(--mint); background: var(--mint); }
.tooltip { position: absolute; bottom: calc(100% + 8px); right: -10px; z-index: 5; width: 256px; padding: 12px 14px; border: 1px solid #5a7c71; border-radius: 12px; color: #e3ede9; background: #192c26; box-shadow: 0 8px 24px #0008; font-size: 12px; font-weight: 400; line-height: 1.75; visibility: hidden; opacity: 0; pointer-events: none; transition: opacity .12s, visibility .12s; }
.tooltip::after { content: ""; position: absolute; top: 100%; left: 0; right: 0; height: 10px; }
.help-wrap:hover .tooltip, .help-wrap:focus-within .tooltip { visibility: visible; opacity: 1; pointer-events: auto; }
.download-side { display: flex; flex-direction: column; align-items: center; justify-content: center; min-width: 0; margin: 34px 0; padding: 13px 38px; border-left: 1px solid #abc7be1c; }
.download-side:focus { outline: none; }
.app-tile { position: relative; width: 96px; height: 96px; display: grid; place-items: center; border: 1px solid #79c4af49; border-radius: 25px; color: #9df4dc; background: linear-gradient(145deg, #315649, #1a332c); box-shadow: 0 14px 26px #06160f6b, inset 0 1px 0 #b8fbe014; }
.android-icon { width: 61px; height: 61px; stroke-width: 2.6; }
.android-icon circle { fill: currentColor; stroke: none; }
.tile-corner { position: absolute; right: -7px; bottom: -6px; display: grid; place-items: center; width: 32px; height: 32px; border: 4px solid #162925; border-radius: 11px; color: #06241b; background: var(--mint); }
.tile-corner svg { width: 20px; height: 20px; stroke-width: 2; }
.download-heading { margin: 21px 0 3px; font-size: 16px; font-weight: 700; letter-spacing: -.035em; }
.download-caption { margin: 0 0 21px; color: #aac0b8; font-size: 12px; }
.download-caption span { margin: 0 6px; color: #627e73; }
.download-button { display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%; min-height: 58px; padding: 14px 18px; border: 1px solid #95f5dd; border-radius: 13px; color: #09291e; background: var(--mint); box-shadow: 0 6px 20px #74e5cb14; font-size: 14px; font-weight: 800; letter-spacing: -.025em; transition: background .16s, box-shadow .16s, transform .16s; }
.download-button svg { width: 20px; height: 20px; stroke-width: 2; }
.download-button .button-arrow { width: 17px; height: 17px; margin-left: auto; }
.download-button > span { margin-right: auto; }
.download-button:hover { transform: translateY(-2px); background: #a4f3df; box-shadow: 0 10px 26px #74e5cb25; }
.download-button:active { transform: translateY(0); }
.candidate-caption { margin-top: 12px; color: #a2b6ae; font-size: 10px; }
.required-note { display: flex; align-items: center; gap: 13px; margin: 18px 0 36px; padding: 16px 20px; border: 1px solid #b8986042; border-radius: 14px; background: #f2b75b07; }
.note-icon { display: grid; place-items: center; width: 37px; height: 37px; flex-shrink: 0; border-radius: 10px; color: #f4c77f; background: #f2b75b10; }
.note-icon svg { width: 21px; height: 21px; }
.required-note p { display: flex; flex-wrap: wrap; gap: 3px 12px; margin: 0; font-size: 12px; letter-spacing: -.025em; }
.required-note strong { color: #efd5ab; font-weight: 650; }
.required-note p > span { color: #c1b9aa; }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 15px; }
h2 { margin: 0; font-size: 15px; font-weight: 650; letter-spacing: -.035em; }
.steps-count { color: #81968f; font-size: 9px; font-weight: 650; letter-spacing: .1em; }
.steps-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 0; padding: 0; list-style: none; counter-reset: step; }
.step-card { min-width: 0; padding: 20px 21px 21px; border: 1px solid var(--line); border-radius: 16px; background: linear-gradient(130deg, #121e23, #0e181d); }
.step-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 18px; }
.step-number { color: #8fb4a8; font-size: 12px; font-weight: 750; letter-spacing: .04em; font-variant-numeric: tabular-nums; }
.step-icon { display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid #84d9be20; border-radius: 10px; color: #9adcc8; background: #74e5cb0a; }
.step-icon svg { width: 19px; height: 19px; }
h3 { margin: 0 0 6px; font-size: 13px; font-weight: 650; letter-spacing: -.035em; }
.step-card p { margin: 0; color: var(--muted); font-size: 11px; letter-spacing: -.025em; }
.step-card p > span { margin-inline: 3px; color: #6f8d82; }
.release-details { margin-top: 25px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.release-details summary { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 17px 0; cursor: pointer; list-style: none; color: #b9cbc4; }
.release-details summary::-webkit-details-marker { display: none; }
.details-title { display: flex; align-items: center; gap: 8px; font-size: 11px; font-weight: 600; }
.details-title svg { width: 17px; height: 17px; color: #8ba69b; }
.details-chevron { width: 17px; height: 17px; transition: transform .15s; }
.release-details[open] .details-chevron { transform: rotate(180deg); }
.details-content { min-width: 0; padding: 2px 0 20px; }
.file-facts { display: grid; gap: 10px; margin: 0; padding: 16px; border: 1px solid var(--line); border-radius: 12px; background: #111b20; font-size: 11px; }
.file-facts > div { display: grid; grid-template-columns: 78px minmax(0, 1fr); gap: 16px; }
.file-facts dt { color: #91a69d; }
.file-facts dd { min-width: 0; margin: 0; color: #d4dfdb; overflow-wrap: anywhere; }
.file-facts .file-hash { font-family: "SFMono-Regular", Consolas, monospace; font-size: 10px; line-height: 1.8; }
.scope-note { max-width: 760px; margin: 12px 0; color: #96aba1; font-size: 11px; line-height: 1.9; }
.manifest-link { display: inline-flex; align-items: center; gap: 5px; color: var(--mint); font-size: 11px; font-weight: 600; }
.manifest-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.manifest-link svg { width: 13px; height: 13px; }
footer { display: flex; justify-content: space-between; gap: 14px; padding: 24px 0 30px; color: #71887f; font-size: 9px; }
footer > span:first-child { letter-spacing: .025em; }
footer span span { margin-inline: 8px; color: #3c554b; }

@media (max-width: 850px) {
  .page-shell { width: min(680px, calc(100% - 40px)); }
  .site-header { padding: 23px 0 27px; }
  .release-card { grid-template-columns: 1fr; }
  .release-intro { padding: 32px 30px 25px; }
  h1 { font-size: 28px; }
  .hero-copy { font-size: 24px; }
  .intro-description { margin: 12px 0 18px; }
  .desktop-break { display: none; }
  .download-side { position: relative; align-items: flex-start; margin: 0 28px 27px; padding: 24px 0 0; border-left: 0; border-top: 1px solid #abc7be26; }
  .app-tile { position: absolute; top: 23px; right: 5px; width: 63px; height: 63px; border-radius: 18px; }
  .android-icon { width: 42px; height: 42px; }
  .tile-corner { width: 25px; height: 25px; border-width: 3px; border-radius: 9px; right: -4px; bottom: -4px; }
  .tile-corner svg { width: 16px; height: 16px; }
  .download-heading { margin: 5px 79px 4px 0; font-size: 15px; }
  .download-caption { margin: 0 79px 27px 0; }
  .download-button { margin-top: 2px; }
  .candidate-caption { align-self: center; }
  .required-note { margin-bottom: 29px; }
  .steps-list { gap: 10px; }
  .step-card { padding: 15px; }
  h3 { font-size: 12px; }
  .step-card p { font-size: 10px; }
}

@media (max-width: 520px) {
  .page-shell { width: calc(100% - 32px); }
  .site-header { gap: 12px; padding: 20px 0 24px; }
  .brand { gap: 9px; }
  .brand-mark { width: 38px; height: 38px; }
  .brand-wordmark { font-size: 16px; }
  .brand-caption { font-size: 9px; }
  .admin-link { gap: 5px; padding: 9px 10px; font-size: 10px; }
  .admin-link svg { width: 14px; height: 14px; }
  .admin-link .arrow-icon { display: none; }
  .release-card { border-radius: 23px; }
  .release-intro { padding: 29px 23px 24px; }
  .eyebrow { font-size: 9px; }
  h1 { margin: 14px 0 17px; font-size: 26px; }
  .hero-copy { font-size: 22px; }
  .intro-description { font-size: 11px; line-height: 1.8; }
  .release-meta { gap: 10px; }
  .version-label { font-size: 10px; gap: 5px; }
  .candidate-label { padding: 3px 6px; font-size: 9px; }
  .help-button { width: 22px; height: 22px; font-size: 12px; }
  .tooltip { right: -8px; width: min(256px, calc(100vw - 82px)); font-size: 11px; }
  .download-side { margin: 0 22px 24px; padding-top: 22px; }
  .download-button { min-height: 55px; padding: 13px 15px; font-size: 13px; }
  .candidate-caption { font-size: 9px; }
  .required-note { align-items: flex-start; gap: 10px; margin-top: 14px; padding: 14px; }
  .note-icon { width: 30px; height: 33px; border-radius: 8px; }
  .note-icon svg { width: 18px; height: 18px; }
  .required-note p { display: block; font-size: 10px; line-height: 1.8; }
  .required-note p > span { display: block; margin-top: 1px; }
  .section-heading { margin-bottom: 12px; }
  h2 { font-size: 13px; }
  .steps-count { font-size: 8px; }
  .steps-list { grid-template-columns: 1fr; gap: 9px; }
  .step-card { position: relative; min-height: 83px; padding: 18px 16px 16px 64px; }
  .step-top { display: block; margin: 0; }
  .step-number { position: absolute; right: 16px; top: 18px; color: #74988b; font-size: 10px; }
  .step-icon { position: absolute; left: 15px; top: 23px; width: 34px; height: 34px; }
  h3 { padding-right: 24px; margin-bottom: 5px; font-size: 12px; }
  .step-card p { font-size: 10px; }
  .release-details { margin-top: 22px; }
  .file-facts { padding: 13px; }
  .file-facts > div { grid-template-columns: 55px minmax(0, 1fr); gap: 8px; }
  .file-facts dd { font-size: 10px; }
  .scope-note { font-size: 10px; }
  footer { padding: 21px 0 25px; font-size: 8px; }
  footer > span:last-child { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
  .download-button:hover { transform: none; }
}