@font-face { font-family: 'Paperlogy'; font-weight: 400; src: url('fonts/Paperlogy-Regular.ttf') format('truetype'); font-display: swap; }
@font-face { font-family: 'Paperlogy'; font-weight: 500; src: url('fonts/Paperlogy-Medium.ttf') format('truetype'); font-display: swap; }
@font-face { font-family: 'Paperlogy'; font-weight: 600; src: url('fonts/Paperlogy-SemiBold.ttf') format('truetype'); font-display: swap; }
@font-face { font-family: 'Paperlogy'; font-weight: 700; src: url('fonts/Paperlogy-Bold.ttf') format('truetype'); font-display: swap; }
@font-face { font-family: 'Paperlogy'; font-weight: 800; src: url('fonts/Paperlogy-ExtraBold.ttf') format('truetype'); font-display: swap; }

:root {
  --bg: #000;
  --surface: #0f0f0f;
  --surface-2: #181818;
  --ink: #fff;
  --ink-2: #a6a6a6;
  --ink-3: #6e6e6e;
  --accent: #7dd3fc;
  --accent-ink: #04141d;
  --radius: 20px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: 'Paperlogy', 'Malgun Gothic', system-ui, sans-serif; font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
code { background: var(--surface-2); padding: 2px 8px; border-radius: 8px; font-size: 0.92em; }

/* 머리글: 바탕은 화면 전체 폭, 안쪽 내용은 본문(main)과 똑같은 폭·여백이라 창 폭이 바뀌어도(스크롤바 유무 포함) 로고·메뉴가 카드와 나란히 선다 */
.top { position: sticky; top: 0; z-index: 10; background: rgba(0, 0, 0, 0.72); backdrop-filter: blur(14px); }
.top-in { max-width: 1080px; margin: 0 auto; padding: 14px 16px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 18px; }
.brand img { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; object-position: center 22%; background: var(--surface-2); }
.top nav { display: flex; gap: 22px; align-items: center; color: var(--ink-2); font-weight: 600; font-size: 15px; }
.top nav a:hover { color: var(--ink); }
.discord-link { color: var(--accent); }

main { max-width: 1080px; margin: 0 auto; padding: 0 16px; }

.hero { position: relative; margin-top: 12px; border-radius: 28px; overflow: hidden; min-height: 460px; display: flex; align-items: flex-end; background: var(--surface); }
.hero-bg { position: absolute; inset: 0; background: url('assets/hero-bg.webp') center / cover; opacity: 0.4; }
.hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,0) 20%, rgba(0,0,0,0.85) 100%); }
.hero-in { position: relative; z-index: 1; padding: clamp(22px, 5vw, 52px); width: 100%; }
.chip { display: inline-block; margin: 0 0 16px; padding: 6px 14px; border-radius: 999px; background: rgba(255,255,255,0.12); color: var(--accent); font-size: 14px; font-weight: 700; }
h1 { margin: 0 0 14px; font-size: clamp(38px, 7vw, 68px); line-height: 1.12; font-weight: 800; letter-spacing: -0.02em; }
.lead { margin: 0 0 26px; max-width: 560px; color: #d0d0d0; font-size: clamp(16px, 2.4vw, 19px); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.meta { margin: 14px 0 0; color: var(--ink-3); font-size: 14px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 16px 26px; border: 0; border-radius: 16px; font: inherit; font-weight: 800; font-size: 17px; cursor: pointer; transition: transform .12s, filter .15s; }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 12px 34px rgba(125, 211, 252, 0.25); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.primary.disabled { background: var(--surface-2); color: var(--ink-2); box-shadow: none; cursor: default; pointer-events: none; }
.btn.ghost { background: rgba(255,255,255,0.1); color: var(--ink); backdrop-filter: blur(6px); }
.btn.ghost:hover { background: rgba(255,255,255,0.16); }
.btn.ghost small { color: var(--ink-2); font-weight: 600; font-size: 13px; }

.block { padding: 64px 0 8px; }
h2 { margin: 0 0 24px; font-size: clamp(26px, 4vw, 34px); font-weight: 800; }
h3 { margin: 0 0 6px; font-size: 19px; font-weight: 700; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; }
.steps li { background: var(--surface); border-radius: var(--radius); padding: 24px; }
.steps b { display: grid; place-items: center; width: 34px; height: 34px; margin-bottom: 14px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-weight: 800; }
.steps p, .features p { margin: 0; color: var(--ink-2); font-size: 15.5px; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; }
.features div { background: var(--surface-2); border-radius: var(--radius); padding: 24px; }

details { background: var(--surface); border-radius: 16px; padding: 18px 22px; margin-bottom: 10px; }
summary { cursor: pointer; font-weight: 700; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; color: var(--accent); font-size: 22px; line-height: 1; }
details[open] summary::after { content: '–'; }
details p { margin: 12px 0 0; color: var(--ink-2); font-size: 15.5px; }

footer { max-width: 1080px; margin: 72px auto 0; padding: 30px 16px 48px; color: var(--ink-3); font-size: 14px; }
footer p { margin: 0 0 6px; }
.fine { font-size: 12.5px; }

@media (max-width: 560px) {
  .top nav a:not(.discord-link) { display: none; }
  .btn { width: 100%; }
}