:root {
    color-scheme: light;
    --blue: #065690;
    --navy: #004369;
    --sky: #0096da;
    --orange: #e67600;
    --ink: #212121;
    --text: #333;
    --muted: #666;
    --line: #dddddd;
    --soft: #f3f5f7;
    --ok: #2e7d32;
    --bad: #c62828;
    --bg: #ffffff;
}
[hidden] { display: none !important; }
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: 'Pretendard', 'Noto Sans KR', 'Malgun Gothic', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    word-break: keep-all;
    overflow-wrap: break-word;
}
a { color: var(--blue); }
.wrap { max-width: 1080px; margin: 0 auto; padding-inline: 16px; }
header.top { border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; gap: 16px; min-height: 64px; flex-wrap: wrap; padding-block: 8px; }
.logo { font-weight: 900; font-size: 20px; color: var(--blue); text-decoration: none; }
.logo small { font-weight: 500; font-size: 13px; color: var(--muted); margin-left: 6px; }
.nav { margin-left: auto; display: flex; gap: 14px; align-items: center; flex-wrap: wrap; font-size: 15px; }
.nav a { text-decoration: none; color: var(--text); font-weight: 600; }
.nav a:hover { color: var(--blue); }
.mockbar { background: #fff4e5; border-bottom: 1px solid #ffd59e; color: #8a4b00; font-size: 14px; }
.mockbar .wrap { padding-block: 8px; }
main { padding-block: 32px 64px; }
h1 { font-size: clamp(26px, 4vw, 36px); font-weight: 900; color: var(--ink); line-height: 1.25; }
h2 { font-size: 22px; font-weight: 800; color: var(--ink); margin: 32px 0 12px; }
.lead { color: var(--muted); margin-top: 8px; max-width: 70ch; }
.notice { margin-top: 16px; padding: 12px 16px; border: 1px solid var(--line); border-left: 4px solid var(--orange); background: var(--soft); }
.notice.ok { border-left-color: var(--ok); }
.notice.bad { border-left-color: var(--bad); }
.grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 32px; margin-top: 24px; align-items: start; }
@media (max-width: 860px) { .grid { grid-template-columns: minmax(0, 1fr); } }
.course { border: 1px solid var(--line); padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.course + .course { margin-top: 16px; }
.course h3 { font-size: 20px; color: var(--ink); }
.course .owned { color: var(--ok); font-weight: 700; font-size: 14px; }
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px; }
.plan { border: 1px solid var(--line); padding: 10px 12px; cursor: pointer; display: flex; flex-direction: column; gap: 2px; }
.plan input { margin-right: 6px; }
.plan b { font-size: 18px; color: var(--ink); font-variant-numeric: tabular-nums; }
.plan small { color: var(--muted); }
.plan:has(input:checked) { border-color: var(--blue); outline: 2px solid var(--blue); outline-offset: -2px; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    font: inherit; font-size: 15px; font-weight: 700;
    padding: 10px 18px; border: 1px solid var(--blue); background: var(--blue); color: #fff;
    cursor: pointer; text-decoration: none;
}
.btn:hover { background: var(--navy); }
.btn.line { background: #fff; color: var(--blue); }
.btn.line:hover { background: var(--soft); }
.btn.danger { background: #fff; color: var(--bad); border-color: var(--bad); }
.btn.sm { padding: 5px 10px; font-size: 13px; }
.btn[disabled] { opacity: 0.45; cursor: default; }
.cart { border: 1px solid var(--line); border-top: 4px solid var(--blue); padding: 20px; position: sticky; top: 16px; }
.cart h3 { font-size: 18px; margin-bottom: 10px; }
.cart ul { list-style: none; display: flex; flex-direction: column; gap: 6px; font-size: 14px; }
.cart li { display: flex; justify-content: space-between; gap: 8px; }
.cart .sum { border-top: 1px solid var(--line); margin-top: 12px; padding-top: 12px; display: flex; justify-content: space-between; font-weight: 800; font-size: 18px; }
.cart .btn { width: 100%; margin-top: 14px; }
.num { font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); font-size: 14px; }
form.card { max-width: 420px; border: 1px solid var(--line); padding: 24px; display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }
label.f { display: flex; flex-direction: column; gap: 4px; font-size: 14px; font-weight: 700; }
input[type=text], input[type=email], input[type=password], input[type=number], select {
    font: inherit; font-size: 15px; padding: 8px 10px; border: 1px solid #b4b4b4; width: 100%; background: #fff; color: var(--ink);
}
input:focus, select:focus { outline: 2px solid var(--sky); outline-offset: -1px; }
.tabs { display: flex; gap: 24px; border-bottom: 1px solid var(--line); }
.tabs button { font: inherit; font-size: 17px; background: none; border: none; border-bottom: 4px solid transparent; padding: 8px 2px; cursor: pointer; color: var(--text); }
.tabs button[aria-selected=true] { font-weight: 900; color: var(--navy); border-bottom-color: var(--orange); }
.err { color: var(--bad); font-size: 14px; min-height: 1.2em; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid #eee; white-space: nowrap; }
th { background: var(--soft); font-weight: 700; }
td.wrap-cell { white-space: normal; min-width: 160px; }
.pill { display: inline-block; font-size: 12px; font-weight: 700; padding: 1px 8px; border-radius: 90px; background: var(--soft); border: 1px solid var(--line); }
.pill.PAID, .pill.ACTIVE { color: var(--ok); border-color: #a5d6a7; background: #e8f5e9; }
.pill.CANCELED, .pill.FAILED, .pill.PAST_DUE { color: var(--bad); border-color: #ef9a9a; background: #ffebee; }
.stats { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 12px; }
.stats div { border: 1px solid var(--line); padding: 12px 16px; min-width: 160px; }
.stats b { display: block; font-size: 22px; color: var(--blue); font-variant-numeric: tabular-nums; }
h2.sec { font-size: 18px; margin: 28px 0 10px; padding-bottom: 6px; border-bottom: 2px solid var(--blue); }
h2.sec:first-child { margin-top: 0; }
.course.free { border-left: 4px solid var(--ok); }
.pill.free, .pill.on { color: var(--ok); border-color: #a5d6a7; background: #e8f5e9; vertical-align: middle; }
.pill.off { color: var(--muted); }
.keybox { margin-top: 20px; border: 1px solid var(--line); border-left: 4px solid var(--sky); background: var(--soft); padding: 14px 16px; display: flex; flex-direction: column; gap: 8px; }
.keybox .err:empty { display: none; }
.codes { font-family: ui-monospace, Consolas, monospace; width: 100%; min-height: 120px; font-size: 14px; padding: 8px; border: 1px solid #b4b4b4; }
fieldset.pick { border: 1px solid var(--line); padding: 10px 14px; display: flex; flex-direction: column; gap: 6px; max-height: 320px; overflow: auto; }
fieldset.pick legend { font-weight: 700; padding: 0 4px; }
fieldset.pick .grp { font-weight: 700; margin-top: 6px; font-size: 13px; color: var(--navy); }
fieldset.pick label { font-size: 14px; display: flex; gap: 6px; align-items: center; }
.formgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; align-items: end; margin-top: 10px; }
.formgrid label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; font-weight: 700; }
tr.dirty td { background: #fffbe6; }
.nav a.btn { color: #fff; }

/* ---------- 대문 ---------- */
.hero { background: linear-gradient(135deg, #004369 0%, #065690 55%, #0a77b8 100%); color: #fff; }
.hero .wrap { padding-block: 34px 32px; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 28px; }
.hero-text { flex: 1 1 420px; min-width: 0; }
.hero h1 { color: #fff; font-size: clamp(20px, 2.6vw, 26px); }
.hero-kicker { font-weight: 700; font-size: 13px; color: #9fd6f5; margin-bottom: 2px; }
.hero-lead { margin-top: 4px; max-width: 62ch; color: #e3f1fa; font-size: 14px; }
.hero-stats { display: flex; gap: 20px; flex-wrap: wrap; }
.hero-stats div { display: flex; flex-direction: column; }
.hero-stats b { font-size: 20px; font-weight: 900; font-variant-numeric: tabular-nums; line-height: 1.1; }
.hero-stats span { font-size: 12px; color: #cfe6f5; }
.btn.light { background: #fff; color: var(--navy); border-color: #fff; }
.btn.light:hover { background: #e8f3fb; }
.btn.ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.7); }
.btn.ghost:hover { background: rgba(255,255,255,.12); }
main.front { padding-top: 24px; }
.toolbar { display: flex; flex-direction: column; gap: 12px; margin-top: 8px; }
.search { position: relative; max-width: 420px; display: block; }
.search i { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--muted); }
.search input { font: inherit; font-size: 15px; width: 100%; padding: 10px 12px 10px 36px; border: 1px solid #b4b4b4; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip { font: inherit; font-size: 14px; padding: 5px 12px; border: 1px solid var(--line); background: #fff; color: var(--text); border-radius: 90px; cursor: pointer; }
.chip[aria-pressed=true] { background: var(--navy); border-color: var(--navy); color: #fff; font-weight: 700; }
.block-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin: 32px 0 14px; border-bottom: 2px solid var(--blue); padding-bottom: 8px; }
.block-head h2 { margin: 0; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 18px; }
.ccard { display: flex; flex-direction: column; border: 1px solid var(--line); background: #fff; text-decoration: none; color: inherit; transition: box-shadow .15s, transform .15s; }
.ccard:hover, .ccard:focus-visible { box-shadow: 0 6px 20px rgba(0, 67, 105, .16); transform: translateY(-2px); }
.thumb { position: relative; aspect-ratio: 16 / 9; overflow: hidden; display: grid; place-items: center; }
.thumb i { font-size: 44px; color: rgba(255,255,255,.92); }
.thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top; }
.thumb img + i { display: none; }
.ccard.locked .thumb::after { content: ''; position: absolute; inset: 0; background: rgba(0, 30, 50, .28); }
.cbody { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.cmeta { display: flex; gap: 8px; align-items: center; font-size: 12px; color: var(--muted); }
.badge { font-size: 12px; font-weight: 800; padding: 1px 8px; border-radius: 90px; border: 1px solid; }
.badge.free { color: var(--ok); background: #e8f5e9; border-color: #a5d6a7; }
.badge.own { color: var(--blue); background: #e6f1fa; border-color: #9cc6e6; }
.badge.lock { color: #8a4b00; background: #fff4e5; border-color: #ffd59e; }
.ccard h3 { font-size: 18px; color: var(--ink); line-height: 1.35; }
.csub { font-size: 13px; color: var(--muted); }
.cabout { font-size: 14px; color: var(--text); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.cstats { display: flex; gap: 10px; flex-wrap: wrap; font-size: 12px; color: var(--muted); }
.cstats b { color: var(--ink); font-variant-numeric: tabular-nums; }
.cfoot { margin-top: auto; padding-top: 10px; border-top: 1px solid #eee; display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.cfoot .go { font-weight: 800; color: var(--blue); font-size: 14px; white-space: nowrap; }
.empty { color: var(--muted); padding: 20px; border: 1px dashed var(--line); grid-column: 1 / -1; }
.foot { border-top: 1px solid var(--line); margin-top: 24px; }
.foot .wrap { display: flex; gap: 18px; flex-wrap: wrap; padding-block: 20px; font-size: 14px; color: var(--muted); }
.foot a { color: var(--muted); }
@media (prefers-reduced-motion: reduce) { .ccard { transition: none; } .ccard:hover { transform: none; } }
.hero .row .btn { padding: 7px 14px; font-size: 14px; }
@media (max-width: 600px) { .hero .wrap { padding-block: 20px 18px; } .hero-lead { display: none; } }
.bulkbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; padding: 8px 10px; margin-bottom: 8px; background: var(--soft); border: 1px solid var(--line); }
.bulkbar label { display: flex; gap: 6px; align-items: center; font-weight: 700; font-size: 14px; }
tr.picked td { background: #eef6fc; }
.bulkbar[hidden] { display: none; }
.setbox { display: flex; flex-direction: column; gap: 6px; padding: 12px 14px; border: 1px solid var(--line); background: var(--soft); }
.setbox label { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; font-size: 15px; }