:root {
  --navy: #071428;
  --navy2: #0c2348;
  --blue: #1a6cff;
  --cyan: #3dd6c6;
  --ink: #122033;
  --muted: #5b6b80;
  --line: #e4eaf3;
  --bg: #f3f6fb;
  --card: #fff;
  --danger: #d64545;
  --ok: #12805a;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Pretendard", "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.topbar {
  background: var(--navy);
  color: #fff;
  position: sticky; top: 0; z-index: 40;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 68px; gap: 16px;
}
.logo { font-weight: 800; font-size: 22px; letter-spacing: -.03em; text-decoration: none; color: #fff; display: flex; align-items: center; gap: 10px; }
.logo img { width: 36px; height: 36px; border-radius: 10px; }
.logo span { color: var(--cyan); }
.ver { font-size: 11px; font-weight: 800; color: var(--cyan); border: 1px solid rgba(61,214,198,.4); padding: 2px 8px; border-radius: 99px; margin-left: 4px; }
#nav-toggle { display: none; }
.nav-btn { display: none; background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.25); border-radius: 8px; padding: 8px 10px; font-weight: 700; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 0; }
.chip { background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.16); color: #d7e6ff; padding: 6px 12px; border-radius: 99px; font-size: 12px; font-weight: 700; }
.who { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.who article { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.form textarea { width: 100%; min-height: 120px; padding: 12px; border: 1px solid var(--line); border-radius: 10px; font-size: 15px; font-family: inherit; }
nav.gnb { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
nav.gnb a { color: #c9d6ea; text-decoration: none; font-size: 14px; font-weight: 600; }
nav.gnb a:hover { color: #fff; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--blue); color: #fff !important; text-decoration: none;
  border: 0; border-radius: 10px; padding: 11px 18px; font-weight: 700; cursor: pointer;
  font-size: 14px;
}
.btn.ghost { background: transparent; border: 1px solid rgba(255,255,255,.25); }
.btn.dark { background: var(--navy); }
.btn.line { background: #fff; color: var(--navy) !important; border: 1px solid var(--line); }

.hero {
  background: linear-gradient(160deg, #071428 0%, #12305f 55%, #0a4d6e 100%);
  color: #fff; padding: 56px 0 0;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 36px; align-items: end; }
.kicker { color: var(--cyan); font-weight: 800; letter-spacing: .08em; font-size: 12px; text-transform: uppercase; }
.hero h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.2; margin: 12px 0 16px; letter-spacing: -.04em; }
.hero p.lead { color: #cdd9ee; font-size: 18px; max-width: 520px; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 28px 0 36px; }
.hero-photo {
  border-radius: 18px 18px 0 0; overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,.35);
}
.hero-photo img { width: 100%; height: 380px; object-fit: cover; }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border-radius: 14px; overflow: hidden; margin-top: -28px;
  position: relative; box-shadow: 0 12px 30px rgba(15,40,80,.08);
}
.stat { background: #fff; padding: 22px 18px; text-align: center; }
.stat b { display: block; font-size: 26px; color: var(--navy2); }
.stat span { color: var(--muted); font-size: 13px; }

section.block { padding: 72px 0; }
h2.sec { font-size: 32px; letter-spacing: -.03em; margin: 0 0 8px; }
.sub { color: var(--muted); margin: 0 0 32px; }

.pain { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.pain article, .feat article, .step, .faq details, .dl-card, .panel {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
}
.pain article { padding: 22px; }
.pain h3 { margin: 0 0 8px; font-size: 18px; }
.pain p { margin: 0; color: var(--muted); font-size: 14px; }
.quote { background: #fff4f0; color: #9a3412; padding: 8px 10px; border-radius: 8px; font-size: 13px; margin-bottom: 10px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step { overflow: hidden; }
.step img { height: 190px; width: 100%; object-fit: cover; }
.step .pad { padding: 18px 20px 22px; }
.step .num { color: var(--blue); font-weight: 800; font-size: 13px; }

.feats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.feat article { padding: 22px 24px; }
.feat h3 { margin: 0 0 8px; }

.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.compare ul { margin: 0; padding-left: 18px; color: var(--muted); }
.compare .bad { border-color: #f3c6c6; }
.compare .good { border-color: #b7e4d4; background: #f4fbf8; }
.pad { padding: 22px; }

.cta {
  background: var(--navy2); color: #fff; border-radius: 20px; padding: 40px;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.cta p { color: #b9c9e4; margin: 6px 0 0; }

footer.site {
  background: var(--navy); color: #9bb0ce; padding: 36px 0; font-size: 13px; margin-top: 40px;
}
footer.site a { color: #d5e4ff; text-decoration: none; }
.foot-row { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

details.faq-item { padding: 4px 18px; }
details.faq-item summary { cursor: pointer; font-weight: 700; padding: 14px 0; }
details.faq-item p { color: var(--muted); margin: 0 0 14px; }

.page-hero { background: var(--navy2); color: #fff; padding: 48px 0 36px; }
.page-hero h1 { margin: 8px 0; font-size: 36px; letter-spacing: -.03em; }
.dl-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.dl-card { padding: 28px; }
.dl-card h2 { margin-top: 0; }
.tag { display: inline-block; background: #e8f1ff; color: var(--blue); font-size: 12px; font-weight: 800; padding: 4px 8px; border-radius: 99px; }

.form { max-width: 420px; }
.form.wide { max-width: 720px; }
.form label { display: block; font-size: 13px; font-weight: 700; margin: 12px 0 6px; }
.form input, .form select {
  width: 100%; padding: 12px 12px; border: 1px solid var(--line); border-radius: 10px; font-size: 15px;
}
.flash { background: #fff3cd; padding: 10px 12px; border-radius: 8px; margin-bottom: 12px; }

.cards-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 18px; }
.kpi { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.kpi b { font-size: 22px; display: block; }

table.data { width: 100%; border-collapse: collapse; font-size: 13px; background: #fff; border-radius: 12px; overflow: hidden; }
table.data th { background: #0c2348; color: #fff; text-align: left; padding: 10px 8px; font-weight: 600; }
table.data td { border-bottom: 1px solid var(--line); padding: 9px 8px; vertical-align: middle; }
.badge { padding: 2px 8px; border-radius: 99px; font-size: 11px; font-weight: 800; }
.badge.on, .badge.ok { background: #d1fae5; color: #065f46; }
.badge.off, .badge.expired, .badge.stopped { background: #fee2e2; color: #991b1b; }
.badge.warn, .badge.soon { background: #fef3c7; color: #92400e; }
.badge.critical { background: #fecaca; color: #7f1d1d; }
.badge.dormant { background: #e5e7eb; color: #374151; }
.searchbar { display: flex; gap: 8px; margin: 0 0 16px; }
.searchbar input, .searchbar select { flex: 1; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); }

.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; }
.info-grid .panel { padding: 18px 20px; }
.info-grid dt { color: var(--muted); font-size: 12px; }
.info-grid dd { margin: 0 0 10px; font-weight: 700; }

@media (max-width: 860px) {
  .hero-grid, .pain, .steps, .feats, .compare, .dl-grid, .cards-4, .cards-6, .info-grid, .cta, .who, .contact-grid, .admin-split, .row-2 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .hero-photo img { height: 220px; }
  .nav-btn { display: inline-flex; }
  nav.gnb {
    display: none; position: absolute; left: 0; right: 0; top: 68px;
    background: #071428; flex-direction: column; padding: 12px 20px 20px; gap: 12px;
  }
  #nav-toggle:checked ~ .topbar-inner nav.gnb { display: flex; }
  .admin-shell { flex-direction: column; }
  .admin-side { width: auto; }
}

.admin-body { background: #edf2f8; }
.admin-shell { display: flex; min-height: 100vh; }
.admin-side {
  width: 228px; background: #071428; color: #c9d6ea; padding: 22px 16px;
  display: flex; flex-direction: column; gap: 8px;
}
.admin-brand { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 800; margin-bottom: 16px; }
.admin-brand img { width: 32px; height: 32px; border-radius: 8px; }
.admin-side nav { display: flex; flex-direction: column; gap: 4px; }
.admin-side nav a { color: #c9d6ea; text-decoration: none; padding: 8px 10px; border-radius: 8px; font-weight: 600; font-size: 14px; }
.admin-side nav a.on, .admin-side nav a:hover { background: rgba(255,255,255,.08); color: #fff; }
.admin-side-foot { margin-top: auto; display: flex; flex-direction: column; gap: 8px; font-size: 13px; padding-top: 18px; }
.admin-side-foot a { color: #9bb0ce; text-decoration: none; }
.admin-main { flex: 1; padding: 28px 32px 48px; min-width: 0; }
.admin-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 18px; }
.admin-head h1 { margin: 4px 0 6px; font-size: 28px; }
.admin-head .sub { margin-bottom: 0; }
.cards-6 { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-bottom: 18px; }
a.kpi { text-decoration: none; color: inherit; }
.kpi.warn { border-color: #f3d19a; background: #fff8eb; }
.kpi.bad { border-color: #f3c6c6; background: #fff5f5; }
.admin-split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.muted { color: var(--muted); font-size: 13px; }
ul.plain { margin: 0; padding-left: 18px; }
.lic-ops { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.lic-ops form { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin: 0; }
.btn.mini { padding: 5px 8px; font-size: 12px; }
.lic-date input[type=date] { padding: 4px 6px; border: 1px solid var(--line); border-radius: 8px; }
.filter-chips { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 14px; }
.filter-chips a { background: #fff; border: 1px solid var(--line); border-radius: 99px; padding: 4px 10px; text-decoration: none; font-size: 12px; font-weight: 700; }
.row-critical { background: #fff1f1; }
.row-soon { background: #fffbeb; }
.row-expired { background: #f8f8f8; color: #6b7280; }
.lic-card { margin-bottom: 12px; }
.lic-card-top { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.chk { font-weight: 600; display: flex; align-items: center; gap: 8px; margin-top: 28px; }
.yt-frame { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: 12px; background: #000; margin: 12px 0; }
.yt-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.guide-list { display: grid; gap: 18px; }