:root {
  --bg: #f6f8fc; --card: #ffffff; --ink: #172033; --dim: #5b6478; --line: #e2e7f0;
  --blue: #2f6fed; --blue2: #1f4fd6; --blue-soft: #e9f0ff; --yellow: #f6c445;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1320; --card: #161d2e; --ink: #e8ecf5; --dim: #9aa5bb; --line: #263049;
    --blue: #6c9bff; --blue2: #4f82f5; --blue-soft: #1a2747; --yellow: #f6c445;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.65 "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
small { font-weight: 500; color: var(--dim); font-size: 0.6em; margin-left: 6px; }
.en { color: var(--dim); font-size: 0.92em; }

.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 800; font-size: 18px; }
.brand:hover { text-decoration: none; }
.brand img { border-radius: 9px; }
.brand small { font-size: 13px; }
nav a { color: var(--ink); margin-left: 18px; font-weight: 600; font-size: 15px; }

.hero { background: linear-gradient(135deg, #2f6fed 0%, #1f4fd6 60%, #1a3fb0 100%); color: #fff; padding: 72px 0 64px; }
.hero .badge { display: inline-block; background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.35); border-radius: 99px; padding: 4px 12px; font-size: 13px; font-weight: 700; letter-spacing: .3px; }
.hero h1 { font-size: 44px; line-height: 1.25; margin: 16px 0 12px; letter-spacing: -0.5px; }
.hero .lead { font-size: 18px; max-width: 720px; margin: 0 0 8px; color: #eef3ff; }
.hero .lead b { color: #fff; box-shadow: inset 0 -0.45em 0 rgba(246,196,69,.55); }
.hero .lead.en { color: #c9d8ff; font-size: 16px; }
.cta { margin-top: 26px; display: flex; gap: 10px; flex-wrap: wrap; }
.btn { display: inline-block; background: var(--yellow); color: #172033; font-weight: 800; padding: 12px 20px; border-radius: 12px; }
.btn:hover { text-decoration: none; filter: brightness(1.05); }
.btn.ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.6); }

.block { padding: 48px 16px 8px; }
.block h2 { font-size: 26px; margin: 0 0 18px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 20px; }
.card h3 { margin: 6px 0 6px; font-size: 18px; }
.card p { margin: 0 0 6px; }
.ico { width: 42px; height: 42px; border-radius: 12px; background: var(--blue-soft); color: var(--blue); display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 800; }
.prod { display: flex; gap: 16px; align-items: flex-start; color: var(--ink); transition: transform .15s, box-shadow .15s; }
.prod:hover { text-decoration: none; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(31,79,214,.12); }
.prod img, .pico { flex: none; width: 64px; height: 64px; border-radius: 16px; }
.pico { background: var(--blue-soft); color: var(--blue); display: flex; align-items: center; justify-content: center; font-size: 30px; font-weight: 800; }
.tag { display: inline-block; font-size: 12px; font-weight: 700; color: var(--dim); border: 1px solid var(--line); border-radius: 99px; padding: 1px 9px; }
.tag.soon { color: #8a6100; background: #fff4d1; border-color: #f3dc8c; }
@media (prefers-color-scheme: dark) { .tag.soon { color: #f6c445; background: #33290f; border-color: #5c4a14; } }
.contact .mail { font-size: 22px; font-weight: 800; margin: 8px 0; }
.contact .links a { margin-right: 16px; font-weight: 600; }

.foot { margin-top: 56px; border-top: 1px solid var(--line); padding: 22px 0 36px; color: var(--dim); font-size: 13px; }
.foot p { margin: 4px 0; }

/* 앱 상세·문서 페이지 */
.doc { max-width: 760px; margin: 0 auto; padding: 32px 16px 8px; }
.doc h1 { font-size: 30px; margin: 0 0 4px; }
.doc h2 { font-size: 20px; margin-top: 32px; }
.doc table { border-collapse: collapse; width: 100%; font-size: 14px; }
.doc td, .doc th { border: 1px solid var(--line); padding: 8px; text-align: left; vertical-align: top; }
.doc .muted { color: var(--dim); font-size: 14px; }
.doc hr { border: 0; border-top: 1px solid var(--line); margin: 40px 0; }
.app-head { display: flex; gap: 18px; align-items: center; }
.app-head img { width: 96px; height: 96px; border-radius: 22px; }
.feat { padding-left: 18px; }
.feat li { margin: 4px 0; }

@media (max-width: 760px) {
  .grid3, .grid2 { grid-template-columns: 1fr; }
  .hero { padding: 52px 0 46px; }
  .hero h1 { font-size: 32px; }
  .hero .lead { font-size: 16px; }
  nav a { margin-left: 12px; font-size: 14px; }
  .brand small { display: none; }
}
.brand span, nav a { white-space: nowrap; }
@media (max-width: 400px) {
  nav a { margin-left: 10px; }
  nav a[href="#about"] { display: none; }
  .hero h1 { font-size: 28px; }
}