/* 교육 참가 포털 (APS-10) — 목업 ② 의 밝은 공개 화면 톤 */
:root { --brand: #1f6feb; --brand-ink: #fff; --text: #1f2933; --muted: #616e7c; --line: #dde2e8; --panel: #fff;
        --bg: #f6f7f9; --public-top: #e8f0fe; --warn-bg: #fff4e5; --warn: #8a4b00; --info-bg: #eef4ff; }
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", "Malgun Gothic", sans-serif; color: var(--text);
       background: linear-gradient(180deg, var(--public-top) 0, var(--bg) 260px) no-repeat, var(--bg); min-height: 100vh; }
header { display: flex; align-items: center; padding: 16px 28px; }
header .logo { font-weight: 700; color: var(--brand); font-size: 18px; }
header .lang { margin-left: auto; display: flex; gap: 4px; }
header .lang button { border: 1px solid var(--line); background: var(--panel); color: var(--text); border-radius: 4px; padding: 4px 10px; cursor: pointer; }
header .lang button.on { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); }
.wrap { max-width: 820px; margin: 0 auto; padding: 10px 20px 40px; }
h1 { margin: 8px 0 4px; font-size: 24px; }
h2 { margin: 8px 0 12px; font-size: 19px; }
.sub, .muted, .hint { color: var(--muted); }
.hint { font-size: 13px; }
.mono { font-family: ui-monospace, Consolas, monospace; }
.hidden { display: none !important; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 28px; margin-top: 12px; }
.center { text-align: center; }
.left { text-align: left; }
.row { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-top: 12px; }
.btn { padding: 9px 16px; border-radius: 6px; border: 1px solid var(--line); background: var(--panel); color: var(--text); cursor: pointer; font-size: 14px; }
.btn.pri { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); }
.btn:disabled { opacity: .5; cursor: default; }
.session { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; margin-bottom: 10px; }
.session .when { width: 120px; text-align: center; border-right: 1px solid var(--line); padding-right: 14px; }
.session .when .d { font-size: 13px; color: var(--muted); }
.session .when .t { font-size: 20px; font-weight: 700; }
.session .info { flex: 1; min-width: 0; }
.session .info .ti { font-weight: 700; font-size: 15px; overflow-wrap: anywhere; }
.session .info .me { color: var(--muted); font-size: 13px; margin-top: 3px; overflow-wrap: anywhere; }
.session .opens { font-size: 12px; color: var(--muted); margin-top: 4px; }
.when-line { margin-top: 4px; font-weight: 600; }
.pin { width: 220px; height: 58px; text-align: center; font-size: 28px; font-weight: 700; letter-spacing: 10px; margin: 14px 0; border: 1px solid var(--line); border-radius: 8px; }
label.f { display: block; max-width: 320px; margin: 0 auto 6px; text-align: left; }
label.f span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
label.f input { width: 100%; padding: 9px 10px; border: 1px solid var(--line); border-radius: 6px; font-size: 15px; }
.error { max-width: 360px; margin: 10px auto 0; padding: 10px 12px; border-radius: 6px; background: var(--warn-bg); color: var(--warn); }
.callout { padding: 12px 14px; border-radius: 8px; background: var(--info-bg); margin-top: 12px; font-size: 14px; }
.bar { max-width: 360px; height: 6px; margin: 16px auto; background: var(--line); border-radius: 3px; overflow: hidden; }
.bar i { display: block; width: 60%; height: 100%; background: var(--brand); }
@media (max-width: 480px) { .session .when { border-right: 0; width: auto; text-align: left; } header { padding: 12px 16px; } }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }