:root {
  --paper: #f3f5f0;
  --paper-deep: #e8ede7;
  --ink: #123f43;
  --ink-soft: #496566;
  --ink-faint: #526b6b;
  --line: #c8d4d0;
  --line-strong: #9bb1ac;
  --saffron: #dda83c;
  --saffron-soft: #f8edcf;
  --focus: #76520b;
  --oxblood: #a84943;
  --oxblood-soft: #f4dfdd;
  --green: #2f6b55;
  --white: #fffefa;
  --shadow: 0 12px 28px rgba(18, 63, 67, .08);
  --radius: 4px;
  --content-max: 1120px;
  --nav-height: 72px;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-bottom: calc(var(--nav-height) + 24px); }
body { margin: 0; min-width: 320px; background: var(--paper); color: var(--ink); font-size: 16px; line-height: 1.5; }
form { scroll-margin-bottom: calc(var(--nav-height) + 24px); }
::selection { background: var(--saffron); color: var(--ink); }
input, select, textarea, button { font: inherit; color: inherit; caret-color: var(--oxblood); }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--oxblood); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
svg { width: 20px; height: 20px; flex: 0 0 auto; }

.app-frame { min-height: 100vh; padding-bottom: calc(var(--nav-height) + env(safe-area-inset-bottom)); }
.site-header { height: 68px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; padding: 0 20px; max-width: var(--content-max); margin: 0 auto; }
.brand-mark { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); text-decoration: none; font-weight: 750; letter-spacing: -.03em; font-size: 1.04rem; }
.brand-symbol { display: grid; place-items: center; width: 27px; height: 27px; border: 2px solid var(--ink); color: var(--ink); font-size: .78rem; font-weight: 800; }
.header-note { color: var(--ink-faint); font-size: .69rem; letter-spacing: .11em; text-transform: uppercase; }
.header-action { appearance: none; border: 0; padding: 8px 0; background: transparent; color: var(--oxblood); cursor: pointer; font-size: .78rem; font-weight: 700; }
.header-action:hover { text-decoration: underline; }
.page-content { max-width: var(--content-max); margin: 0 auto; padding: 34px 20px 56px; }
.page-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 30px; }
.page-heading h1, .page-heading h2 { margin: 0; font-size: 2rem; line-height: 1.05; letter-spacing: -.035em; font-weight: 750; }
.page-heading p { margin: 9px 0 0; color: var(--ink-soft); max-width: 54ch; }
.heading-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 15px; margin: 38px 0 13px; }
.section-heading h2 { margin: 0; font-size: 1.08rem; letter-spacing: -.02em; }
.section-heading a { font-size: .8rem; color: var(--oxblood); }

.flash-stack { max-width: var(--content-max); margin: 0 auto; padding: 13px 20px 0; }
.flash { display: flex; align-items: center; gap: 9px; padding: 12px 14px; border: 1px solid var(--line-strong); background: var(--white); font-size: .88rem; }
.flash svg { width: 17px; }
.flash-success { color: #2f6b55; border-color: #9bc2ae; }
.flash-alert { color: var(--oxblood); border-color: #dba7a3; }

.balance-sheet { background: var(--ink); color: var(--white); padding: 24px 22px 22px; position: relative; overflow: hidden; border-radius: var(--radius); box-shadow: var(--shadow); }
.balance-sheet::after { content: ""; position: absolute; right: -50px; top: -60px; width: 160px; height: 160px; border: 1px solid rgba(255,255,255,.16); transform: rotate(45deg); }
.balance-kicker { color: #b7cbc8; letter-spacing: .1em; text-transform: uppercase; font-size: .67rem; font-weight: 700; }
.balance-amount { margin: 8px 0 13px; font-variant-numeric: tabular-nums; font-size: clamp(2.5rem, 12vw, 5rem); line-height: .97; letter-spacing: -.04em; font-weight: 720; }
.balance-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; border-top: 1px solid rgba(255,255,255,.22); padding-top: 14px; }
.balance-stat-label { color: #b7cbc8; font-size: .72rem; display: block; }
.balance-stat-value { display: block; margin-top: 2px; font-size: 1.05rem; font-variant-numeric: tabular-nums; }
.disclosure { color: var(--ink-soft); font-size: .76rem; line-height: 1.45; margin: 11px 0 0; }
.disclosure-light { color: #b7cbc8; }

.action-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 19px; }
.button { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; gap: 8px; border: 1px solid var(--ink); border-radius: var(--radius); padding: 10px 16px; background: var(--ink); color: var(--white); font-weight: 700; font-size: .87rem; cursor: pointer; text-decoration: none; transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease; }
.button:hover { background: var(--oxblood); border-color: var(--oxblood); color: var(--white); transform: translateY(-1px); }
.button-secondary { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.button-secondary:hover { color: var(--ink); border-color: var(--ink); background: var(--white); }
.button-quiet { border-color: transparent; background: transparent; color: var(--oxblood); padding-inline: 8px; }
.button-danger { border-color: var(--oxblood); background: var(--oxblood); }
.button-full { width: 100%; }
.button[disabled] { opacity: .45; cursor: not-allowed; transform: none; }
.text-link { color: var(--oxblood); font-size: .86rem; font-weight: 700; }

.setup-list { border-top: 1px solid var(--line); }
.setup-item { display: flex; align-items: center; gap: 13px; min-height: 68px; border-bottom: 1px solid var(--line); text-decoration: none; }
.setup-mark { width: 26px; height: 26px; display: grid; place-items: center; border: 1px solid var(--line-strong); color: var(--ink-soft); }
.setup-mark.is-done { background: var(--green); color: white; border-color: var(--green); }
.setup-copy { flex: 1; }
.setup-title { display: block; font-weight: 700; font-size: .9rem; }
.setup-hint { display: block; color: var(--ink-soft); font-size: .78rem; }
.setup-arrow { color: var(--ink-faint); }

.ledger-list { border-top: 2px solid var(--ink); }
.ledger-row { display: grid; grid-template-columns: 52px minmax(0, 1fr) auto; align-items: center; gap: 13px; min-height: 69px; border-bottom: 1px solid var(--line); text-decoration: none; }
.ledger-row:hover { background: rgba(255,254,250,.65); color: var(--ink); }
.row-index { color: var(--ink-faint); font-size: .73rem; font-variant-numeric: tabular-nums; }
.row-main { min-width: 0; }
.row-title { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 700; font-size: .9rem; }
.row-meta { display: block; color: var(--ink-soft); font-size: .76rem; }
.row-value { text-align: right; font-variant-numeric: tabular-nums; font-weight: 700; font-size: .88rem; }
.row-value.positive { color: #2f6b55; }
.row-value.negative { color: var(--oxblood); }
.row-icon { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--line); color: var(--ink-soft); }
.row-icon svg { width: 16px; }

.envelope-line { display: grid; grid-template-columns: minmax(0, 1fr) 100px auto; align-items: center; gap: 15px; min-height: 78px; border-bottom: 1px solid var(--line); }
.envelope-line:first-child { border-top: 2px solid var(--ink); }
.envelope-name { font-weight: 700; }
.envelope-account { display: block; color: var(--ink-soft); font-size: .75rem; }
.envelope-pct { color: var(--ink); text-align: right; font-weight: 750; font-variant-numeric: tabular-nums; }
.envelope-balance { color: var(--ink-soft); text-align: right; font-size: .78rem; font-variant-numeric: tabular-nums; }
.total-strip { display: flex; justify-content: space-between; gap: 15px; padding: 13px 0; border-bottom: 1px solid var(--line-strong); font-size: .83rem; }
.total-strip strong { font-variant-numeric: tabular-nums; }
.status-ok { color: #2f6b55; }
.status-warn { color: var(--oxblood); }
.status-note { color: var(--ink-soft); }

.index-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--ink); overflow-x: auto; scrollbar-width: thin; }
.index-tab { flex: 0 0 auto; padding: 10px 15px; border: 1px solid transparent; border-bottom: 0; color: var(--ink-soft); text-decoration: none; font-size: .8rem; }
.index-tab.is-current, .index-tab:hover { color: var(--ink); border-color: var(--line); background: var(--white); }

.resource-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.resource-card { position: relative; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); padding: 17px 0 18px; text-decoration: none; }
.resource-card:hover { color: var(--ink); }
.resource-card h2, .resource-card h3 { margin: 0; font-size: 1.08rem; }
.resource-card p { margin: 5px 0 0; color: var(--ink-soft); font-size: .8rem; }
.card-number { color: #70510b; font-size: .7rem; letter-spacing: .1em; }
.card-line { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-top: 17px; }
.card-balance { font-weight: 750; font-variant-numeric: tabular-nums; }
.card-yield { color: #2f6b55; font-size: .78rem; }

.form-shell { max-width: 720px; }
.interest-credit-shell { max-width: none; }
.credit-context { border-top: 2px solid var(--ink); padding-top: 20px; margin-bottom: 24px; }
.credit-date-form { display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; align-items: end; margin-top: 20px; }
.credit-date-form .field { margin-bottom: 0; }
.form-intro { color: var(--ink-soft); max-width: 58ch; margin: -17px 0 28px; }
.form-section { border-top: 2px solid var(--ink); padding: 20px 0 26px; margin-top: 24px; }
.form-section h2 { margin: 0 0 17px; font-size: 1rem; }
.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field { margin-bottom: 17px; }
.field label { display: block; font-weight: 700; font-size: .81rem; margin-bottom: 6px; }
.field small, .field-help { display: block; color: var(--ink-soft); font-size: .75rem; margin-top: 6px; }
.field input, .field select, .field textarea { width: 100%; min-height: 46px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--white); padding: 10px 12px; }
.field textarea { min-height: 98px; resize: vertical; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--ink); }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--ink); outline: 3px solid var(--focus); outline-offset: 2px; }
.auth-shell { width: min(100%, 440px); margin: clamp(30px, 8vh, 90px) auto 0; }
.auth-heading { border-top: 2px solid var(--ink); padding-top: 22px; margin-bottom: 28px; }
.auth-heading h1 { margin: 7px 0 8px; font-size: clamp(2rem, 9vw, 3rem); line-height: 1; letter-spacing: -.04em; }
.auth-heading p { margin: 0; color: var(--ink-soft); }
.auth-kicker { color: var(--oxblood); font-size: .7rem; font-weight: 750; letter-spacing: .11em; text-transform: uppercase; }
.auth-form { padding: 22px; border: 1px solid var(--line); background: var(--white); box-shadow: var(--shadow); }
.input-with-suffix { position: relative; }
.input-with-suffix input { padding-right: 40px; }
.input-suffix { position: absolute; right: 13px; top: 11px; color: var(--ink-soft); }
.error-summary { border: 1px solid var(--oxblood); background: var(--oxblood-soft); color: var(--oxblood); padding: 13px 15px; margin-bottom: 20px; font-size: .84rem; }
.error-summary strong { display: block; margin-bottom: 3px; }
.inline-error { color: var(--oxblood); font-size: .76rem; margin-top: 5px; }

.split-mode { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 0 0 20px; }
.mode-option { display: block; cursor: pointer; }
.mode-option input { position: absolute; opacity: 0; }
.mode-option input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 3px; }
.mode-option span { display: flex; min-height: 47px; align-items: center; justify-content: center; border: 1px solid var(--line-strong); background: var(--white); font-size: .8rem; font-weight: 700; text-align: center; padding: 9px; }
.mode-option input:checked + span { background: var(--ink); border-color: var(--ink); color: var(--white); }
.allocation-table { border-top: 2px solid var(--ink); }
.allocation-row { display: grid; grid-template-columns: minmax(0, 1fr) 80px 126px; gap: 13px; align-items: center; min-height: 64px; border-bottom: 1px solid var(--line); }
.allocation-row label { font-size: .85rem; font-weight: 700; }
.allocation-account { display: block; color: var(--ink-soft); font-size: .72rem; font-weight: 400; }
.allocation-row input { width: 100%; min-height: 40px; border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 7px 8px; text-align: right; background: var(--white); }
.allocation-row input[disabled] { border-color: transparent; background: transparent; color: var(--ink-soft); }
.allocation-amount { grid-column: 3; text-align: right; font-variant-numeric: tabular-nums; font-size: .82rem; }
.allocation-row input[hidden] + .allocation-amount { grid-column: 2 / 4; }
.credit-allocation-table { border-top: 2px solid var(--ink); }
.credit-allocation-row { display: grid; grid-template-columns: minmax(0, 1fr) 126px; gap: 13px; align-items: center; min-height: 70px; border-bottom: 1px solid var(--line); }
.credit-allocation-row label { display: block; font-size: .85rem; font-weight: 700; }
.credit-allocation-row input { width: 100%; min-height: 42px; border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 8px; text-align: right; background: var(--white); }
.credit-allocation-row input:hover { border-color: var(--ink); }
.credit-allocation-row input:focus { border-color: var(--ink); outline: 3px solid var(--focus); outline-offset: 2px; }
.reconcile { display: flex; justify-content: space-between; gap: 15px; margin: 15px 0 0; padding: 14px; background: var(--paper-deep); font-size: .82rem; }
.reconcile strong { font-variant-numeric: tabular-nums; }
.reconcile.is-valid { color: var(--green); background: #e0eee6; }
.reconcile.is-invalid { color: var(--oxblood); background: var(--oxblood-soft); }
.reconcile-mark { display: inline-grid; width: 22px; height: 22px; place-items: center; border: 1px solid currentColor; }
.reconcile-mark[hidden] { display: none; }
.reconcile-mark svg { width: 15px; height: 15px; }

.detail-layout { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); gap: 44px; align-items: start; }
.detail-aside { border-top: 2px solid var(--ink); padding-top: 16px; }
.detail-aside h2 { margin: 0 0 13px; font-size: 1rem; }
.rate-history { margin-top: 24px; }

.detail-fact { display: flex; justify-content: space-between; gap: 15px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: .82rem; }
.detail-fact span { color: var(--ink-soft); }
.detail-fact strong { text-align: right; font-variant-numeric: tabular-nums; }
.movement-detail { border-top: 2px solid var(--ink); }
.movement-detail-row { display: grid; grid-template-columns: 110px minmax(0, 1fr) auto; gap: 15px; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: .82rem; }
.movement-detail-row span { color: var(--ink-soft); }
.movement-detail-row strong { text-align: right; font-variant-numeric: tabular-nums; }

.empty-state { border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); padding: 26px 0; }
.empty-state h2 { margin: 0 0 7px; font-size: 1.08rem; }
.empty-state p { margin: 0 0 16px; max-width: 52ch; color: var(--ink-soft); font-size: .86rem; }
.notice-line { padding: 12px 0; color: var(--ink-soft); font-size: .8rem; }
.tag { display: inline-flex; align-items: center; min-height: 23px; padding: 3px 7px; background: var(--paper-deep); color: var(--ink-soft); font-size: .68rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.tag-green { background: #e0eee6; color: #2f6b55; }
.tag-red { background: var(--oxblood-soft); color: #8f3936; }
.tag-yellow { background: var(--saffron-soft); color: #70510b; }
.voided { color: var(--ink-faint); }
.voided .row-value { color: var(--ink-soft); text-decoration: line-through; }


.bottom-nav { position: fixed; z-index: 10; bottom: 0; left: 0; right: 0; height: var(--nav-height); padding: 5px 10px env(safe-area-inset-bottom); display: grid; grid-template-columns: repeat(4, 1fr); background: rgba(243,245,240,.97); border-top: 1px solid var(--line-strong); }
.nav-tab { min-width: 44px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; color: var(--ink-soft); text-decoration: none; font-size: .65rem; font-weight: 700; }
.nav-tab svg { width: 19px; height: 19px; }
.nav-tab.is-current { color: var(--oxblood); }
.nav-tab.is-current svg { stroke-width: 2.4; }

@media (min-width: 760px) {
  :root { --nav-height: 0px; }
  .app-frame { padding-bottom: 0; }
  .site-header { height: 82px; padding-inline: 34px; }
  .page-content { padding: 52px 34px 80px; }
  .bottom-nav { position: sticky; top: 0; bottom: auto; max-width: var(--content-max); height: 50px; margin: 0 auto; padding: 0 34px; display: flex; justify-content: flex-start; gap: 6px; border: 0; border-bottom: 1px solid var(--line); background: var(--paper); }
  .nav-tab { flex-direction: row; gap: 7px; padding: 0 15px; }
  .nav-tab.is-current { border-bottom: 2px solid var(--oxblood); }
  .page-heading h1, .page-heading h2 { font-size: 2.4rem; }
  .balance-sheet { padding: 33px 34px 30px; }
  .balance-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); max-width: 660px; }
  .envelope-list { max-width: 780px; }
  .credit-context { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .8fr); gap: 44px; align-items: end; }
  .credit-date-form { grid-template-columns: minmax(0, 1fr) auto; margin-top: 0; }
  .interest-credit-form { display: grid; grid-template-columns: minmax(280px, .75fr) minmax(0, 1.25fr); gap: 44px; align-items: start; }
  .interest-credit-form .form-section { margin-top: 0; }
}
@media (max-width: 600px) {
  .page-heading { display: block; }
  .heading-actions { margin-top: 17px; }
  .heading-actions .button { width: 100%; }
  .resource-grid { grid-template-columns: 1fr; }
  .detail-layout { display: block; }
  .detail-aside { margin-top: 34px; }
  .interest-credit-actions .button { width: 100%; }
  .allocation-row { grid-template-columns: minmax(0, 1fr) 66px 105px; gap: 8px; }
  .credit-allocation-row { grid-template-columns: minmax(0, 1fr) 112px; gap: 8px; }
  .movement-detail-row { grid-template-columns: 90px minmax(0, 1fr); }
  .movement-detail-row strong { grid-column: 2; text-align: left; }
}
@media (max-width: 380px) {
  .site-header { padding-inline: 14px; }
  .page-content { padding-inline: 14px; padding-bottom: calc(var(--nav-height) + 28px); }
  .header-note { display: none; }
  .balance-amount { font-size: 2.4rem; }
  .envelope-line { grid-template-columns: minmax(0, 1fr) 75px; }
  .envelope-balance { grid-column: 1; text-align: left; }
  .envelope-pct { grid-row: 1 / span 2; grid-column: 2; }
  .allocation-row { grid-template-columns: minmax(0, 1fr) 93px; }
  .credit-allocation-row { grid-template-columns: minmax(0, 1fr) 93px; gap: 8px; }
  .allocation-row .allocation-amount,
  .allocation-row input[hidden] + .allocation-amount { grid-column: 2; grid-row: 2; text-align: right; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}