/* licensetrack: 색은 모두 토큰. 라이트 기본, 다크는 시스템 설정 따름. */
:root {
  --bg: #F8FAFC;
  --surface: #FFFFFF;
  --surface-2: #F1F5F9;
  --text: #0F172A;
  --muted: #475569;
  --line: #CBD5E1;
  --accent: #1D4ED8;
  --on-accent: #FFFFFF;
  --accent-soft: #DBEAFE;
  --accent-text: #1E40AF;
  --danger: #B91C1C;
  --danger-soft: #FEE2E2;
  --warn: #92400E;
  --warn-soft: #FEF3C7;
  --ok: #166534;
  --ok-soft: #DCFCE7;
  --track: #E2E8F0;
  --focus: #1D4ED8;
  --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 8px 24px rgba(15, 23, 42, .06);
  --radius: 1rem;
  --serif: Georgia, "Noto Serif KR", "Nanum Myeongjo", "Batang", "AppleMyungjo", "Hiragino Mincho ProN", serif;
  --sans: system-ui, -apple-system, "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0B1220;
    --surface: #111B2E;
    --surface-2: #17233A;
    --text: #E2E8F0;
    --muted: #B4C0D3;
    --line: #34435F;
    --accent: #60A5FA;
    --on-accent: #0B1220;
    --accent-soft: #1E3A8A;
    --accent-text: #BFDBFE;
    --danger: #FCA5A5;
    --danger-soft: #3F1D1D;
    --warn: #FDE68A;
    --warn-soft: #3B2F12;
    --ok: #86EFAC;
    --ok-soft: #14321F;
    --track: #24314B;
    --focus: #93C5FD;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);
  }
}

:root[data-theme="dark"] {
  --bg: #0B1220;
  --surface: #111B2E;
  --surface-2: #17233A;
  --text: #E2E8F0;
  --muted: #B4C0D3;
  --line: #34435F;
  --accent: #60A5FA;
  --on-accent: #0B1220;
  --accent-soft: #1E3A8A;
  --accent-text: #BFDBFE;
  --danger: #FCA5A5;
  --danger-soft: #3F1D1D;
  --warn: #FDE68A;
  --warn-soft: #3B2F12;
  --ok: #86EFAC;
  --ok-soft: #14321F;
  --track: #24314B;
  --focus: #93C5FD;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
h1, h2, h3 { font-family: var(--serif); line-height: 1.25; margin: 0 0 .5rem; letter-spacing: -.01em; }
h1 { font-size: clamp(1.9rem, 5vw, 3rem); font-weight: 700; }
h2 { font-size: clamp(1.4rem, 3.4vw, 2rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 700; }
p { margin: 0 0 .75rem; }
a { color: var(--accent-text); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 6px; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.hint { color: var(--muted); font-size: .875rem; margin: .35rem 0 0; }
.req { color: var(--danger); font-size: .8rem; font-weight: 600; margin-left: .25rem; }
[hidden] { display: none !important; }

.skip {
  position: absolute; left: -9999px; top: 0; background: var(--accent); color: var(--on-accent);
  padding: .5rem 1rem; border-radius: 0 0 .5rem .5rem; z-index: 100;
}
.skip:focus { left: 0; }

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.wrap.narrow { max-width: 760px; }
.section { padding: 56px 0; }
.section-alt { background: var(--surface-2); }
.section-sub { color: var(--muted); margin-bottom: 1.5rem; }

/* 버튼 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  min-height: 44px; padding: .6rem 1.1rem; border-radius: .75rem; border: 1px solid transparent;
  font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; text-align: center;
  transition: background-color .15s, border-color .15s;
}
.btn-sm { min-height: 44px; padding: .5rem .9rem; font-size: .95rem; }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { filter: brightness(1.06); }
.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--line); }
.btn-ghost { background: transparent; color: var(--accent-text); border-color: var(--line); }
.btn-danger { background: transparent; color: var(--danger); border-color: var(--danger); }
.btn-small { min-height: 44px; padding: .35rem .75rem; font-size: .9rem; }
button:disabled { opacity: .55; cursor: not-allowed; }

/* 상단 바 */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: saturate(1.2) blur(8px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 60px; }
.brand { display: inline-flex; align-items: center; gap: .5rem; text-decoration: none; color: var(--text); font-family: var(--serif); font-weight: 700; font-size: 1.15rem; }
.topnav { display: none; gap: 1.25rem; }
.topnav a { color: var(--muted); text-decoration: none; padding: .5rem 0; }
.topnav a:hover { color: var(--text); text-decoration: underline; }
@media (min-width: 760px) { .topnav { display: flex; } }

/* 히어로 */
.hero { padding: 64px 0 40px; background: radial-gradient(1200px 400px at 80% -10%, var(--accent-soft), transparent 70%); }
.eyebrow { color: var(--accent-text); font-weight: 700; letter-spacing: .02em; margin-bottom: .75rem; }
.lead { font-size: 1.125rem; color: var(--muted); max-width: 40rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin: 1.5rem 0 1rem; }
.fineprint { color: var(--muted); font-size: .875rem; }

/* 카드 */
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.25rem; box-shadow: var(--shadow);
}
.feature-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 680px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
.feature h3 { color: var(--text); }
.feature p { color: var(--muted); margin: 0; }

.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 1rem; }
.step { display: flex; gap: 1rem; align-items: flex-start; }
.step p { color: var(--muted); margin: 0; }
.step-no {
  flex: 0 0 auto; width: 2.25rem; height: 2.25rem; border-radius: 999px;
  background: var(--accent); color: var(--on-accent); display: grid; place-items: center; font-weight: 700;
}

/* FAQ */
.faq { padding: 0; margin-bottom: .75rem; }
.faq summary { cursor: pointer; font-weight: 700; padding: 1rem 1.25rem; min-height: 44px; list-style-position: outside; }
.faq p { padding: 0 1.25rem 1rem; color: var(--muted); margin: 0; }

/* 푸터 */
.footer { border-top: 1px solid var(--line); padding: 32px 0 48px; background: var(--surface); }
.footer-grid { display: grid; gap: 1rem; }
@media (min-width: 760px) { .footer-grid { grid-template-columns: 1fr 1.2fr; } }
.footer-brand { font-family: var(--serif); font-weight: 700; font-size: 1.1rem; margin: 0 0 .25rem; }
.privacy { color: var(--text); margin-bottom: .25rem; }
.copyright { grid-column: 1 / -1; margin: 0; }

/* 앱 */
.app-section { background: var(--bg); border-top: 1px solid var(--line); }
.app-head { margin-bottom: 1rem; }
.app-head p { margin: 0; }
.tabs { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.25rem; border-bottom: 1px solid var(--line); padding-bottom: .75rem; }
.tabs button {
  min-height: 44px; padding: .5rem .9rem; border-radius: 999px; border: 1px solid var(--line);
  background: var(--surface); color: var(--text); font: inherit; font-weight: 600; cursor: pointer;
}
.tabs button[aria-selected="true"] { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.panel { display: grid; gap: 1rem; }
.sub-head { margin-top: 1.25rem; }
.disclaimer { color: var(--muted); font-size: .85rem; margin-top: 1rem; }

.counts { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.counts li {
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px;
  padding: .4rem .9rem; font-size: .95rem; min-height: 44px; display: inline-flex; align-items: center; gap: .4rem;
}
.counts strong { font-size: 1.1rem; }

.alert {
  background: var(--warn-soft); color: var(--warn); border: 1px solid var(--warn);
  border-radius: var(--radius); padding: 1rem 1.25rem;
}
.alert ul { margin: .5rem 0 0; padding-left: 1.2rem; }
.alert li { margin-bottom: .2rem; }
.alert-danger { background: var(--danger-soft); color: var(--danger); border-color: var(--danger); }

.cards { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 720px) { .cards { grid-template-columns: repeat(2, 1fr); } }
.item-card { display: grid; gap: .75rem; }
.item-head { display: flex; justify-content: space-between; gap: .75rem; align-items: flex-start; }
.item-head p { color: var(--muted); margin: 0; font-size: .9rem; }
.badge {
  display: inline-flex; align-items: center; min-height: 32px; padding: .2rem .65rem; border-radius: 999px;
  font-size: .85rem; font-weight: 700; white-space: nowrap; border: 1px solid currentColor;
}
.b-expired { color: var(--danger); background: var(--danger-soft); }
.b-d30 { color: var(--warn); background: var(--warn-soft); }
.b-d90 { color: var(--accent-text); background: var(--accent-soft); }
.b-ok { color: var(--ok); background: var(--ok-soft); }
.b-none { color: var(--muted); background: var(--surface-2); }
.status-tag { font-size: .85rem; font-weight: 600; }
.s-done { color: var(--ok); }
.s-on { color: var(--ok); }
.s-risk { color: var(--warn); }
.s-over { color: var(--danger); }
.s-none { color: var(--muted); }

.facts { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem 1rem; margin: 0; }
.facts dt { color: var(--muted); font-size: .85rem; }
.facts dd { margin: 0; font-weight: 600; }
.facts .wide { grid-column: 1 / -1; }

.progress { height: 12px; background: var(--track); border-radius: 999px; overflow: hidden; }
.progress > span { display: block; height: 100%; background: var(--accent); border-radius: 999px; }
.progress.is-done > span { background: var(--ok); }
.progress.is-risk > span { background: var(--warn); }
.progress.is-over > span { background: var(--danger); }
.progress-label { display: flex; justify-content: space-between; font-size: .9rem; color: var(--muted); margin-top: .35rem; }

.item-actions, .actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.empty { text-align: left; }

.timeline { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem; }
.timeline li {
  display: grid; grid-template-columns: 7.5rem 1fr auto; gap: .75rem; align-items: center;
  background: var(--surface); border: 1px solid var(--line); border-radius: .75rem; padding: .65rem .9rem;
}
.timeline time { font-variant-numeric: tabular-nums; color: var(--muted); }
.timeline .dday { font-weight: 700; font-variant-numeric: tabular-nums; }
@media (max-width: 420px) { .timeline li { grid-template-columns: 1fr auto; } .timeline time { grid-column: 1 / -1; order: -1; } }

/* 폼 */
.form { display: grid; gap: 1rem; }
.form h3 { margin-bottom: 0; }
.grid-2 { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid-2 { grid-template-columns: 1fr 1fr; } }
.field { display: grid; gap: .35rem; }
label { font-weight: 600; }
input, select, textarea {
  font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--line);
  border-radius: .65rem; min-height: 44px; padding: .55rem .75rem; width: 100%; max-width: 100%;
}
textarea { min-height: 88px; resize: vertical; }
input[type="file"] { min-height: 44px; padding: .4rem; }
input[aria-invalid="true"] { border-color: var(--danger); }
.form-error { color: var(--danger); font-weight: 600; margin: 0; }
.warn-note { background: var(--warn-soft); color: var(--warn); border-radius: .75rem; padding: .6rem .8rem; margin: 0; font-size: .95rem; }
.bullets { margin: 0; padding-left: 1.2rem; color: var(--muted); }
.radio-group { border: 0; padding: 0; margin: 0; display: grid; gap: .5rem; }
.radio-group legend { font-weight: 600; margin-bottom: .35rem; }
.radio-group label { font-weight: 400; display: flex; align-items: center; gap: .5rem; min-height: 44px; }
.radio-group input { width: auto; min-height: auto; }
.sent summary { cursor: pointer; font-weight: 600; min-height: 44px; display: flex; align-items: center; }

.stack-list { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem; }
.stack-list > li {
  background: var(--surface); border: 1px solid var(--line); border-radius: .75rem; padding: .75rem 1rem;
  display: flex; justify-content: space-between; gap: .75rem; flex-wrap: wrap; align-items: center;
}
.stack-list .meta { color: var(--muted); font-size: .9rem; margin: 0; }
.stack-list .main { min-width: 0; flex: 1 1 14rem; }
.stack-list .main strong { display: block; }

.cycle-info { display: grid; gap: .6rem; }
.cycle-info p { margin: 0; }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: .75rem; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; font-size: .92rem; background: var(--surface); }
th, td { padding: .55rem .6rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: var(--surface-2); font-weight: 700; white-space: nowrap; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }

.plan-list { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem; }
.plan-list li { background: var(--surface); border: 1px solid var(--line); border-radius: .75rem; padding: .75rem 1rem; }
.plan-chips { display: flex; flex-wrap: wrap; gap: .35rem; margin-top: .4rem; }
.plan-chips span { background: var(--accent-soft); color: var(--accent-text); border-radius: 999px; padding: .15rem .6rem; font-size: .88rem; font-variant-numeric: tabular-nums; }
.source { font-size: .85rem; color: var(--muted); }

.danger-zone { border-color: var(--danger); }
.rules summary { cursor: pointer; font-weight: 700; min-height: 44px; display: flex; align-items: center; }
.rules ul { margin-top: .5rem; }
.rules li { margin-bottom: .35rem; }

.toast {
  position: fixed; left: 50%; bottom: 16px; transform: translateX(-50%); z-index: 60;
  background: var(--text); color: var(--bg); padding: .65rem 1.1rem; border-radius: 999px;
  max-width: calc(100% - 32px); box-shadow: var(--shadow); font-weight: 600;
}

.print-area { display: none; }

/* 인쇄: 요약 표만 */
@media print {
  :root, :root[data-theme] { --bg: #fff; --surface: #fff; --text: #000; --muted: #333; --line: #999; --track: #ddd; }
  body { background: #fff; color: #000; }
  .skip, .topbar, .hero, #features, #how, #faq, .footer, .app-head, .tabs, .panel, .disclaimer:not(.print-area .disclaimer) { display: none !important; }
  .app-section { padding: 0; border: 0; background: #fff; }
  .app-section .wrap { max-width: none; padding: 0; }
  #panel-backup { display: block !important; }
  #panel-backup > :not(#print-summary) { display: none !important; }
  .print-area { display: block !important; box-shadow: none; border: 0; }
  .print-title { font-size: 18pt; }
  table { font-size: 9.5pt; }
  th, td { border-color: #999; }
  .table-wrap { overflow: visible; border: 0; }
  a { color: #000; text-decoration: none; }
}

/* 모션 축소 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

/* 좁은 화면 */
@media (max-width: 380px) {
  .facts { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .hero-actions .btn, .item-actions .btn { width: 100%; }
  .actions .btn { width: 100%; }
  .topbar .btn { width: auto; }
}