:root {
  color-scheme: dark;
  --bg: #071a14;
  --bg-soft: #0a251d;
  --panel: rgba(255, 255, 255, 0.045);
  --line: rgba(255, 255, 255, 0.11);
  --text: #f5f7f6;
  --muted: rgba(255, 255, 255, 0.52);
  --green: #54e0a4;
  --green-dark: #09251c;
  --red: #fca5a5;
  --amber: #fde68a;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 30% -10%, rgba(39, 155, 111, .16), transparent 35rem),
    var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.55;
}
a { color: inherit; text-underline-offset: 3px; }
h1 { margin: 0 0 1rem; font-size: clamp(1.35rem, 4vw, 1.65rem); }
h2 { margin: 0 0 .85rem; font-size: .95rem; color: rgba(255,255,255,.78); }
p { margin: .45rem 0; }
small { display: block; color: var(--muted); font-size: .75rem; }
button, input, select, textarea { font: inherit; }

.container { width: min(100% - 2rem, 1050px); margin: 0 auto; padding: 1.5rem 0 3rem; }
.container.compact { width: min(100% - 2rem, 470px); padding-top: clamp(2rem, 8vh, 6rem); }
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--line); background: rgba(7,26,20,.94); backdrop-filter: blur(14px); }
.header-inner { width: min(100% - 2rem, 1050px); margin: 0 auto; padding-top: .8rem; }
.header-top { display: flex; align-items: center; gap: .8rem; }
.brand { font-weight: 800; text-decoration: none; }
.staff-name { margin-left: auto; color: var(--muted); font-size: .75rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
nav { display: flex; gap: .25rem; margin-top: .65rem; overflow-x: auto; scrollbar-width: none; }
nav a { padding: .6rem .72rem .7rem; border-bottom: 2px solid transparent; color: var(--muted); font-size: .78rem; text-decoration: none; white-space: nowrap; }
nav a.active { color: var(--green); border-bottom-color: var(--green); }

.card { margin: 0 0 1rem; padding: 1rem; border: 1px solid var(--line); border-radius: 1rem; background: var(--panel); box-shadow: 0 12px 35px rgba(0,0,0,.08); }
.card.danger, .flash.error { border-color: rgba(248,113,113,.42); background: rgba(248,113,113,.1); }
.card.note { border-color: rgba(251,191,36,.22); background: rgba(251,191,36,.05); }
.muted-card, .muted-row { opacity: .58; }
.stack { display: grid; gap: 1rem; }
.grid { display: grid; gap: 1rem; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stats { display: grid; gap: .8rem; margin-bottom: 1rem; }
.stats.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stats.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.stat { margin: 0; }
.stat > strong, .big { display: block; margin-top: .3rem; font-size: clamp(1.45rem, 3vw, 2rem); font-weight: 800; line-height: 1.2; font-variant-numeric: tabular-nums; }
.stat small { margin-top: .35rem; }
.eyebrow { display: block; color: var(--muted); font-size: .69rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
.positive { color: var(--green) !important; }
.negative { color: var(--red) !important; }
.muted { color: var(--muted); }
.strong { font-weight: 800; }
.center { text-align: center; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.small-text { font-size: .78rem; }

.page-title { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.page-title h1 { margin: 0; }
.page-title.left { justify-content: flex-start; flex-wrap: wrap; }
.section-title { margin: 1.25rem .2rem .55rem; font-size: .86rem; }
.card-title { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }
.card-title > a:not(.card-link) { color: var(--green); font-size: .75rem; }
.card-link { font-size: 1.1rem; font-weight: 800; }
.link-row { display: flex; gap: 1rem; margin-top: .8rem; font-size: .82rem; }
.link-row a:first-child { color: var(--green); }
.back { color: var(--muted); font-size: .85rem; }

label { display: grid; gap: .35rem; color: rgba(255,255,255,.68); font-size: .78rem; font-weight: 650; }
input, select, textarea {
  width: 100%;
  min-height: 2.75rem;
  padding: .66rem .8rem;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: .72rem;
  outline: none;
  background: var(--bg-soft);
  color: var(--text);
}
input:focus, select:focus, textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(84,224,164,.08); }
textarea { resize: vertical; }
.form-grid { display: grid; gap: .8rem; }
.form-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.form-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.form-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.search-form { display: flex; gap: .55rem; }
.search-form input { flex: 1; }
.inline-form { margin: 0; }
.inline-actions { display: flex; align-items: end; flex-wrap: wrap; gap: .55rem; }
.inline-actions label { width: auto; }
.inline-actions input, .inline-actions select { width: auto; }
.button {
  display: inline-flex;
  min-height: 2.55rem;
  align-items: center;
  justify-content: center;
  padding: .62rem 1rem;
  border: 1px solid transparent;
  border-radius: .75rem;
  cursor: pointer;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
}
.button.primary { background: var(--green); color: var(--green-dark); }
.button.ghost { border-color: var(--line); background: rgba(255,255,255,.035); color: var(--text); }
.button.danger { border-color: rgba(248,113,113,.32); background: rgba(248,113,113,.11); color: var(--red); }
.button.small { min-height: 2rem; padding: .38rem .65rem; font-size: .72rem; }
.button.tiny { min-height: 1.75rem; padding: .3rem .5rem; border-radius: .5rem; font-size: .68rem; }
.button.full { width: 100%; }

.flash { margin-bottom: 1rem; padding: 1rem; border: 1px solid rgba(84,224,164,.35); border-radius: 1rem; background: rgba(84,224,164,.08); }
.flash p { margin: 0; }
.flash.secret { text-align: center; }
.flash.secret .eyebrow { margin-top: .7rem; }
.secret-value { display: block; margin: .2rem 0; color: var(--green); font-size: clamp(2rem, 8vw, 3.25rem); letter-spacing: .16em; overflow-wrap: anywhere; }
.badge { display: inline-block; padding: .15rem .45rem; border-radius: .38rem; background: rgba(255,255,255,.1); color: rgba(255,255,255,.72); font-size: .67rem; font-weight: 650; white-space: nowrap; }
.badge.warn { background: rgba(251,191,36,.13); color: var(--amber); }

.balance-card { display: flex; align-items: end; justify-content: space-between; gap: 1.2rem; }
.balance { display: block; margin-top: .25rem; font-size: clamp(2.3rem, 8vw, 3.5rem); line-height: 1; font-variant-numeric: tabular-nums; }
.balance small { display: inline; margin-left: .25rem; font-size: .85rem; }
.meta { display: flex; gap: 1.25rem; margin: 0; }
.meta dt { color: var(--muted); font-size: .68rem; }
.meta dd { margin: .15rem 0 0; font-size: .8rem; white-space: nowrap; }
.detail-grid { display: grid; grid-template-columns: minmax(0,1fr) 320px; gap: 1rem; align-items: start; }

.table-card { padding: 0; overflow: hidden; }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .8rem; }
th { padding: .62rem .8rem; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .7rem; font-weight: 650; text-align: left; }
td { padding: .7rem .8rem; border-bottom: 1px solid rgba(255,255,255,.055); vertical-align: middle; }
tbody tr:last-child td { border-bottom: 0; }
.session-actions, .entry-actions { display: flex; flex-wrap: wrap; gap: .4rem; }
.session-actions form { display: flex; gap: .3rem; }
.session-actions input { width: 6rem; min-height: 2rem; padding: .3rem .5rem; font-size: .72rem; }
.result-form { display: flex; gap: .3rem; width: 100%; }
.result-form input { width: 4.5rem; min-height: 1.75rem; padding: .28rem .4rem; font-size: .68rem; }
.result-form input:nth-of-type(4) { width: 5.6rem; }

.ledger { display: grid; gap: .55rem; }
.ledger-row { padding: .85rem 1rem; border: 1px solid var(--line); border-radius: .9rem; background: var(--panel); }
.ledger-row.voided { opacity: .5; }
.ledger-main, .ledger-meta { display: flex; align-items: baseline; justify-content: space-between; gap: .8rem; }
.ledger-main > div { display: flex; align-items: center; gap: .55rem; flex-wrap: wrap; }
.member-link { color: rgba(255,255,255,.72); font-size: .78rem; }
.delta { font-size: 1.05rem; font-variant-numeric: tabular-nums; white-space: nowrap; }
.ledger-meta { margin-top: .2rem; color: var(--muted); font-size: .7rem; }
.memo { margin: .35rem 0 0; color: rgba(255,255,255,.68); font-size: .77rem; }
.void-form { margin-top: .35rem; color: var(--muted); font-size: .7rem; }
.void-form summary { cursor: pointer; text-decoration: underline; }
.void-form form { margin-top: .35rem; }
.void-form input { min-height: 2rem; width: min(100%, 18rem); padding: .35rem .55rem; font-size: .72rem; }

.clean-list { display: grid; gap: .45rem; padding: 0; list-style: none; }
.clean-list li { display: flex; justify-content: space-between; gap: 1rem; }
.clean-list span { font-size: .72rem; white-space: nowrap; }
.hero { padding-top: 8vh; text-align: center; }
.hero h1 { margin: .2rem 0 .8rem; font-size: clamp(2rem, 8vw, 3.5rem); }
.hero > p:not(.eyebrow) { color: var(--muted); }
.hero-actions { display: flex; justify-content: center; gap: .7rem; margin-top: 1.6rem; }
.login-title { margin-bottom: 1.3rem; text-align: center; }
.login-title h1 { margin: .15rem 0; }
.my-header { display: flex; align-items: start; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.my-header h1 { margin: .2rem 0 0; }
.notice-link { display: block; margin-bottom: 1rem; padding: .8rem 1rem; border: 1px solid rgba(251,191,36,.26); border-radius: .85rem; background: rgba(251,191,36,.08); color: var(--amber); font-size: .8rem; text-decoration: none; }
.pager { display: flex; justify-content: space-between; margin-top: .8rem; font-size: .8rem; }
.footer-note { margin-top: 2rem; }
.staff-row summary { display: flex; gap: .7rem; cursor: pointer; list-style: none; }
.staff-row summary::-webkit-details-marker { display: none; }
.staff-row[data-muted="true"] { opacity: .62; }
.summary-end { margin-left: auto; color: var(--muted); font-size: .78rem; }
.staff-edit { display: grid; gap: 1rem; margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--line); }

@media (max-width: 760px) {
  .container { width: min(100% - 1rem, 1050px); padding-top: 1rem; }
  .container.compact { width: min(100% - 1.25rem, 470px); }
  .header-inner { width: min(100% - 1rem, 1050px); }
  .staff-name { max-width: 8rem; }
  .grid.two, .detail-grid { grid-template-columns: 1fr; }
  .stats.four { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .form-grid.three, .form-grid.four { grid-template-columns: 1fr 1fr; }
  .meta { display: grid; grid-template-columns: repeat(3,1fr); gap: .6rem; }
  .balance-card { align-items: start; }
  table { min-width: 680px; }
}

@media (max-width: 480px) {
  .card { padding: .85rem; border-radius: .85rem; }
  .page-title { align-items: center; }
  .page-title > .muted { font-size: .68rem; text-align: right; }
  .stats.three { grid-template-columns: 1fr 1fr; }
  .stats.three > :last-child { grid-column: 1 / -1; }
  .form-grid.two, .form-grid.three, .form-grid.four { grid-template-columns: 1fr; }
  .search-form { flex-direction: column; }
  .hero-actions { flex-direction: column; }
  .clean-list li { align-items: start; flex-direction: column; gap: .1rem; }
  .balance-card { flex-wrap: wrap; }
  .meta { width: 100%; }
}