:root {
    --bg: #f4f7f5;
    --surface: #ffffff;
    --text: #17211b;
    --muted: #65736a;
    --primary: #176b45;
    --primary-dark: #0d5133;
    --border: #dce5df;
    --danger-bg: #fff0f0;
    --danger: #9b2525;
    --warning-bg: #fff8df;
    --radius: 16px;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background: var(--bg);
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: var(--bg); }
.site-header { min-height: 56px; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 0 16px; background: var(--surface); border-bottom: 1px solid var(--border); }
.brand { color: var(--primary-dark); font-size: 1.05rem; font-weight: 800; text-decoration: none; }
.container { width: min(100% - 24px, 920px); margin: 24px auto 72px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; box-shadow: 0 8px 30px rgba(25, 54, 37, .05); }
.auth-card { max-width: 440px; margin: 8vh auto 0; }
.stack { display: grid; gap: 16px; }
.compact { gap: 12px; }
h1, h2, p { margin-top: 0; }
h1 { font-size: clamp(1.7rem, 7vw, 2.4rem); line-height: 1.1; margin-bottom: 12px; }
h2 { font-size: 1.2rem; margin-bottom: 8px; }
.eyebrow { color: var(--primary); margin-bottom: 6px; font-size: .76rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.muted { color: var(--muted); }
label span { display: block; margin-bottom: 7px; font-weight: 700; }
input, select, textarea { width: 100%; min-height: 48px; border: 1px solid #b9c7be; border-radius: 11px; padding: 10px 12px; background: #fff; color: var(--text); font: inherit; }
textarea { min-height: 96px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 3px solid rgba(23, 107, 69, .18); border-color: var(--primary); }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; border: 0; border-radius: 11px; padding: 10px 17px; font: inherit; font-weight: 800; cursor: pointer; text-decoration: none; }
.button-primary { color: #fff; background: var(--primary); }
.button-primary:hover { background: var(--primary-dark); }
.button-quiet { color: var(--primary-dark); background: #e8f1ec; }
.button-danger { color: #fff; background: #a52c2c; }
.alert { padding: 13px 15px; border-radius: 11px; margin: 16px 0; }
.alert-error { color: var(--danger); background: var(--danger-bg); }
.alert-warning { background: var(--warning-bg); }
.alert-success { color: var(--primary-dark); background: #e6f4eb; }
.badge { display: inline-block; border-radius: 999px; padding: 5px 9px; background: #e6f4eb; color: var(--primary-dark); font-size: .75rem; font-weight: 800; }
.badge-muted { color: #59625c; background: #e8ece9; }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 20px; }
.placeholder-grid { display: grid; gap: 12px; margin-top: 14px; }
.summary-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 14px 0; }
.summary { color: var(--text); text-decoration: none; }
.summary strong { display: block; color: var(--primary); font-size: 1.8rem; }
.summary span { color: var(--muted); }
.card-list { display: grid; gap: 12px; }
.item-card { display: grid; gap: 16px; }
.item-card p:last-child { margin-bottom: 0; }
.section-gap { margin-bottom: 16px; }
.form-space { margin-top: 16px; }
.form-grid { display: grid; gap: 14px; }
details > summary { color: var(--primary-dark); font-weight: 800; cursor: pointer; min-height: 44px; display: flex; align-items: center; }
.check { display: flex; align-items: center; gap: 10px; min-height: 44px; }
.check input { width: 22px; min-height: 22px; margin: 0; }
.check span { margin: 0; }
small { color: var(--muted); display: block; margin-top: 5px; }
.empty { padding: 22px; color: var(--muted); text-align: center; border: 1px dashed #b9c7be; border-radius: var(--radius); }
.action-row { display: flex; flex-wrap: wrap; gap: 8px; }
.menu-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; }
.menu-grid a { min-height: 48px; display: flex; align-items: center; padding: 10px 12px; border-radius: 11px; color: var(--primary-dark); background: #eef5f1; font-weight: 800; text-decoration: none; }
.choice-list, .assignment-list { display: grid; gap: 10px; }
.sticky-action { position: sticky; bottom: 76px; width: 100%; box-shadow: 0 8px 24px rgba(13,81,51,.25); }
.desktop-nav { display: none; gap: 16px; }
.desktop-nav a { color: var(--muted); text-decoration: none; font-size: .88rem; font-weight: 700; }
.mobile-nav { position: fixed; z-index: 20; left: 0; right: 0; bottom: 0; display: grid; grid-template-columns: repeat(4,1fr); min-height: 60px; padding-bottom: env(safe-area-inset-bottom); background: var(--surface); border-top: 1px solid var(--border); }
.mobile-nav a { display: flex; align-items: center; justify-content: center; color: var(--primary-dark); font-size: .78rem; font-weight: 800; text-decoration: none; }
.shortcut-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; margin-bottom: 16px; }
.shortcut-grid a { min-height: 54px; display: flex; align-items: center; justify-content: center; border-radius: 13px; background: var(--primary); color: #fff; font-weight: 800; text-decoration: none; }
.shortcut-grid a:last-child { grid-column: span 2; background: var(--primary-dark); }
.transaction-card { color: var(--text); text-decoration: none; }
.transaction-card.is-deleted { opacity: .62; }
.transaction-top,.transaction-meta,.balance-row,.history-row { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.transaction-meta { flex-wrap: wrap; color: var(--muted); font-size: .78rem; }
.ledger-line { display: grid; grid-template-columns: 1fr auto; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.ledger-line div { display: grid; gap: 4px; text-align: right; }
.ledger-line div:first-child { text-align: left; }
.detail-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; margin-bottom: 14px; }
.detail-grid div { display: grid; gap: 4px; }
.detail-grid span,.ledger-line span,.history-row span { color: var(--muted); font-size: .82rem; }
.history-row,.balance-row { padding: 10px 0; border-bottom: 1px solid var(--border); }
.money-summary,.balance-columns { display: grid; gap: 12px; }
.conditional[hidden] { display: none; }
.guide-content { overflow-wrap: anywhere; font-family: inherit; line-height: 1.65; }
.pagination { display: flex; justify-content: space-between; gap: 12px; margin-top: 16px; }
@media (min-width: 720px) {
    .container { margin-top: 40px; }
    .card { padding: 26px; }
    .placeholder-grid { grid-template-columns: repeat(3, 1fr); }
    .summary-grid { grid-template-columns: repeat(4,1fr); }
    .form-grid { grid-template-columns: repeat(2,1fr); }
    .item-card { grid-template-columns: 1fr auto; align-items: start; }
    .desktop-nav { display: flex; }
    .mobile-nav { display: none; }
    .sticky-action { position: static; width: auto; justify-self: start; }
    .shortcut-grid { grid-template-columns: repeat(5,1fr); }
    .shortcut-grid a:last-child { grid-column: auto; }
    .money-summary { grid-template-columns: 2fr 1fr; }
    .balance-columns { grid-template-columns: repeat(2,1fr); }
}