:root {
  color-scheme: dark;
  --bg: #100f16;
  --bg-raised: #17151f;
  --surface: rgba(27, 25, 37, .82);
  --surface-strong: #201d2b;
  --surface-soft: rgba(255,255,255,.035);
  --input: rgba(9, 8, 14, .38);
  --border: rgba(255,255,255,.085);
  --border-strong: rgba(255,255,255,.14);
  --text: #f5f3fb;
  --muted: #bbb5c9;
  --faint: #b5aec5;
  --accent: #c4b5fd;
  --accent-strong: #8b5cf6;
  --accent-soft: rgba(139,92,246,.15);
  --green: #5ee0b0;
  --green-soft: rgba(52,211,153,.12);
  --orange: #f5b86a;
  --orange-soft: rgba(245,158,11,.12);
  --red: #fb858f;
  --red-soft: rgba(248,113,113,.12);
  --shadow: 0 28px 80px rgba(0,0,0,.28);
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 13px;
  --ease: cubic-bezier(.2,.75,.25,1);
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f4f9;
  --bg-raised: #fff;
  --surface: rgba(255,255,255,.82);
  --surface-strong: #fff;
  --surface-soft: rgba(40,30,65,.035);
  --input: rgba(245,243,250,.82);
  --border: rgba(55,43,80,.10);
  --border-strong: rgba(55,43,80,.16);
  --text: #242033;
  --muted: #5c546d;
  --faint: #655d74;
  --accent: #6841c6;
  --accent-strong: #6941c6;
  --accent-soft: rgba(120,82,214,.10);
  --green: #087454;
  --green-soft: rgba(19,139,104,.10);
  --orange: #8a5208;
  --orange-soft: rgba(169,105,18,.10);
  --red: #c44958;
  --red-soft: rgba(196,73,88,.10);
  --shadow: 0 24px 70px rgba(48,34,83,.09);
}
* { box-sizing: border-box; }
html { min-width: 320px; scroll-behavior: smooth; }
body {
  margin: 0; min-height: 100vh; overflow-x: hidden; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  transition: background .35s ease, color .35s ease;
}
button, input, select { font: inherit; }
button { -webkit-tap-highlight-color: transparent; }
button:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 70%, transparent); outline-offset: 3px; }
svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.ambient { position: fixed; pointer-events: none; z-index: -1; border-radius: 50%; filter: blur(2px); }
.ambient-one { width: 520px; height: 520px; top: -270px; left: calc(50% - 520px); background: radial-gradient(circle, rgba(139,92,246,.18), transparent 68%); }
.ambient-two { width: 600px; height: 600px; top: 200px; right: -400px; background: radial-gradient(circle, rgba(91,72,180,.10), transparent 70%); }
.app-shell { width: min(1200px, calc(100% - 48px)); margin: 0 auto; }
.topbar { height: 86px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border); }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; color: var(--text); }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 12px; background: linear-gradient(140deg, #a78bfa, #7042d8); color: white; box-shadow: 0 7px 22px rgba(139,92,246,.25); }
.brand-mark svg { width: 22px; height: 22px; }
.brand-word { font: 800 25px/1 system-ui, sans-serif; letter-spacing: -1.5px; }
.brand-word span, .title-period, .footer-dot { color: var(--accent); }
.topbar-actions { display: flex; align-items: center; gap: 9px; }
.local-status { display: inline-flex; align-items: center; gap: 8px; margin-right: 8px; font-size: 12px; color: var(--muted); }
.status-dot, .live-badge span { width: 7px; height: 7px; display: inline-block; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px var(--green-soft); }
.icon-button { width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--border); border-radius: 12px; color: var(--muted); background: var(--surface-soft); cursor: pointer; transition: transform .22s var(--ease), background .22s ease, border-color .22s ease, color .22s ease; }
.icon-button:hover { transform: translateY(-2px); border-color: var(--border-strong); color: var(--text); background: var(--accent-soft); }
.icon-button svg { width: 19px; height: 19px; }
.icon-moon { display: none; }
:root[data-theme="light"] .icon-sun { display: none; }
:root[data-theme="light"] .icon-moon { display: block; }
.danger-hover:hover { color: var(--red); background: var(--red-soft); border-color: color-mix(in srgb, var(--red) 40%, transparent); }
.intro { padding: 43px 0 30px; animation: rise-in .55s var(--ease) both; }
.eyebrow, .step-label, .metric-overline { color: var(--accent); font-size: 10px; letter-spacing: 1.65px; font-weight: 700; }
.eyebrow { display: flex; align-items: center; gap: 10px; }
.eyebrow-line { display: inline-block; width: 23px; height: 1px; background: var(--accent); }
.intro h1 { margin: 13px 0 9px; font: 800 clamp(34px, 4vw, 47px)/1.12 system-ui, sans-serif; letter-spacing: -2px; }
.intro p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.7; }
.workspace { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr); align-items: start; gap: 20px; }
.panel { border: 1px solid var(--border); border-radius: var(--radius-xl); background: var(--surface); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); box-shadow: var(--shadow); }
.input-panel { padding: 25px; animation: rise-in .6s .05s var(--ease) both; }
.results-column { display: grid; gap: 18px; animation: rise-in .65s .12s var(--ease) both; }
.summary-panel, .balances-panel, .settlement-panel { padding: 24px; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 24px; }
.panel-heading h2 { margin: 7px 0 0; font: 700 19px/1.25 system-ui, sans-serif; letter-spacing: -.55px; }
.step-label { font-size: 9px; letter-spacing: 1.4px; color: var(--faint); }
.heading-icon { display: grid; place-items: center; width: 40px; height: 40px; border: 1px solid var(--border); border-radius: 13px; color: var(--accent); background: var(--accent-soft); }
.heading-icon svg { width: 20px; height: 20px; }
.field-label { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; font-weight: 600; margin-bottom: 9px; }
.label-hint { color: var(--faint); }
.money-field { position: relative; display: flex; align-items: center; min-width: 0; }
.money-field input, .person-name, .person-paid, .transfer-select, .transfer-amount { width: 100%; min-width: 0; height: 46px; color: var(--text); background: var(--input); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 0 14px; transition: border-color .2s ease, box-shadow .2s ease, background .2s ease; }
.money-field input { height: 56px; padding-left: 42px; padding-right: 64px; font: 700 19px system-ui, sans-serif; font-variant-numeric: tabular-nums; }
.money-field input::placeholder, input::placeholder { color: var(--faint); opacity: .8; }
.money-field input:focus, .person-name:focus, .person-paid:focus, .transfer-select:focus, .transfer-amount:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px var(--accent-soft); }
.money-symbol { position: absolute; z-index: 1; left: 15px; color: var(--accent); font-weight: 700; }
.field-caption { position: absolute; right: 14px; color: var(--faint); font-size: 11px; }
.field-help { margin: 8px 0 0; font-size: 11px; line-height: 1.6; color: var(--faint); }
.section-divider { height: 1px; background: var(--border); margin: 25px 0 23px; }
.section-title-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 14px; }
.section-title-row h3 { margin: 0; font: 700 14px system-ui, sans-serif; letter-spacing: -.2px; }
.section-title-row p { margin: 5px 0 0; font-size: 11px; color: var(--faint); line-height: 1.5; }
.count-pill { flex-shrink: 0; padding: 6px 9px; border-radius: 8px; background: var(--surface-soft); border: 1px solid var(--border); color: var(--muted); font-size: 10px; font-weight: 600; }
.dynamic-list { display: grid; gap: 9px; margin-bottom: 12px; }
.person-row, .transfer-row { display: grid; align-items: center; gap: 8px; animation: row-in .25s var(--ease) both; }
.person-row { grid-template-columns: 30px minmax(0,1fr) 112px 34px; }
.person-avatar { display: grid; place-items: center; width: 29px; height: 29px; border-radius: 10px; color: var(--accent); background: var(--accent-soft); font-size: 11px; font-weight: 700; }
.person-name, .person-paid, .transfer-select, .transfer-amount { height: 40px; padding: 0 10px; border-radius: 10px; font-size: 12px; }
.person-paid, .transfer-amount { font-variant-numeric: tabular-nums; }
.person-paid { padding-right: 24px; }
.money-small { position: relative; min-width: 0; }
.money-small .currency-symbol { position: absolute; right: 9px; top: 50%; transform: translateY(-50%); color: var(--faint); font-size: 11px; pointer-events: none; }
.remove-button { width: 32px; height: 34px; display: grid; place-items: center; border: 1px solid transparent; border-radius: 9px; color: var(--faint); background: transparent; cursor: pointer; transition: .2s ease; }
.remove-button svg { width: 15px; height: 15px; }
.remove-button:hover { color: var(--red); background: var(--red-soft); border-color: var(--border); }
.secondary-button, .primary-button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 39px; border-radius: 11px; padding: 0 13px; font-size: 12px; font-weight: 700; cursor: pointer; transition: transform .2s var(--ease), background .2s ease, border-color .2s ease, box-shadow .2s ease; }
.secondary-button { color: var(--accent); background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent); }
.secondary-button svg, .primary-button svg { width: 15px; height: 15px; }
.secondary-button:hover { transform: translateY(-1px); background: color-mix(in srgb, var(--accent) 20%, transparent); }
.secondary-button:active, .primary-button:active { transform: scale(.98); }
.transfer-row { grid-template-columns: minmax(0,1fr) 18px minmax(0,1fr) 95px 30px; }
.transfer-select { appearance: none; padding-right: 20px; background-image: linear-gradient(45deg, transparent 50%, var(--faint) 50%), linear-gradient(135deg, var(--faint) 50%, transparent 50%); background-position: calc(100% - 10px) 17px, calc(100% - 6px) 17px; background-size: 4px 4px, 4px 4px; background-repeat: no-repeat; }
.transfer-select option { background: var(--surface-strong); color: var(--text); }
.transfer-arrow { color: var(--faint); display: grid; place-items: center; }
.transfer-arrow svg { width: 14px; height: 14px; }
.panel-footer { display: flex; align-items: center; justify-content: space-between; gap: 8px; border-top: 1px solid var(--border); margin-top: 25px; padding-top: 17px; }
.privacy-note { display: flex; align-items: center; gap: 6px; font-size: 10px; color: var(--faint); }
.privacy-note svg { width: 13px; height: 13px; }
.text-button { padding: 5px 0; border: 0; color: var(--muted); background: transparent; font-size: 10px; cursor: pointer; }
.text-button:hover { color: var(--accent); }
.live-badge { display: inline-flex; align-items: center; gap: 8px; color: var(--green); font-size: 10px; font-weight: 600; white-space: nowrap; }
.live-badge span { width: 6px; height: 6px; box-shadow: none; }
.hero-total { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 19px; border-radius: 17px; border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent); background: linear-gradient(115deg, var(--accent-soft), transparent 85%), var(--surface-soft); }
.metric-overline { color: var(--faint); font-size: 9px; letter-spacing: 1.25px; }
.hero-amount { margin-top: 8px; font: 800 clamp(27px, 3vw, 36px)/1.1 system-ui, sans-serif; letter-spacing: -1.4px; font-variant-numeric: tabular-nums; }
.hero-amount span { color: var(--accent); font-size: .72em; }
.hero-icon { display: grid; place-items: center; width: 46px; height: 46px; flex-shrink: 0; border-radius: 15px; color: var(--accent); background: var(--accent-soft); }
.hero-icon svg { width: 23px; height: 23px; }
.progress-meta { display: flex; justify-content: space-between; gap: 10px; margin: 19px 0 9px; color: var(--muted); font-size: 11px; }
.progress-meta strong { color: var(--text); font-variant-numeric: tabular-nums; }
.progress-track { height: 7px; border-radius: 20px; overflow: hidden; background: var(--surface-soft); border: 1px solid var(--border); }
.progress-track span { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, #8b5cf6, #c4b5fd); transition: width .5s var(--ease); }
.metrics-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 9px; margin-top: 18px; }
.metric-card { display: flex; min-width: 0; flex-direction: column; align-items: flex-start; gap: 9px; padding: 13px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface-soft); }
.metric-icon { display: grid; place-items: center; width: 27px; height: 27px; border-radius: 9px; }
.metric-icon svg { width: 14px; height: 14px; }
.metric-icon.purple { color: var(--accent); background: var(--accent-soft); }
.metric-icon.green { color: var(--green); background: var(--green-soft); }
.metric-icon.orange { color: var(--orange); background: var(--orange-soft); }
.metric-label { color: var(--faint); font-size: 10px; line-height: 1.4; }
.metric-card strong { font: 700 clamp(12px,1.4vw,16px) system-ui, sans-serif; letter-spacing: -.35px; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.notice { min-height: 36px; display: flex; align-items: center; margin-top: 14px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 11px; color: var(--muted); background: var(--surface-soft); font-size: 11px; line-height: 1.5; }
.notice[data-kind="success"] { color: var(--green); border-color: color-mix(in srgb, var(--green) 20%, transparent); background: var(--green-soft); }
.notice[data-kind="warning"] { color: var(--orange); border-color: color-mix(in srgb, var(--orange) 22%, transparent); background: var(--orange-soft); }
.balance-list, .settlement-list { display: grid; gap: 8px; }
.balance-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px; border: 1px solid var(--border); border-radius: 13px; background: var(--surface-soft); animation: row-in .3s var(--ease) both; }
.balance-person { display: flex; align-items: center; gap: 10px; min-width: 0; }
.balance-avatar { display: grid; place-items: center; flex-shrink: 0; width: 34px; height: 34px; border-radius: 11px; background: var(--accent-soft); color: var(--accent); font-size: 11px; font-weight: 800; }
.balance-name { min-width: 0; font-size: 12px; font-weight: 700; overflow-wrap: anywhere; }
.balance-sub { margin-top: 4px; color: var(--faint); font-size: 10px; }
.balance-value { text-align: right; font-size: 12px; font-weight: 700; white-space: nowrap; font-variant-numeric: tabular-nums; }
.balance-value.positive { color: var(--green); }
.balance-value.negative { color: var(--orange); }
.balance-value.neutral { color: var(--muted); }
.balance-status { margin-top: 4px; text-align: right; color: var(--faint); font-size: 9px; }
.settlement-panel { border-color: color-mix(in srgb, var(--accent) 23%, var(--border)); }
.small-action { display: inline-flex; align-items: center; gap: 6px; min-height: 32px; padding: 0 10px; color: var(--muted); background: var(--surface-soft); border: 1px solid var(--border); border-radius: 9px; font-size: 10px; font-weight: 700; cursor: pointer; transition: .2s ease; }
.small-action svg { width: 13px; height: 13px; }
.small-action:not(:disabled):hover { color: var(--accent); border-color: var(--accent); }
.small-action:disabled { opacity: .45; cursor: not-allowed; }
.settlement-row { display: grid; grid-template-columns: minmax(0,1fr) 26px minmax(0,1fr) auto; align-items: center; gap: 9px; padding: 12px 10px; border: 1px solid var(--border); border-radius: 13px; background: var(--surface-soft); animation: row-in .35s var(--ease) both; }
.settlement-name { font-size: 11px; font-weight: 700; overflow-wrap: anywhere; }
.settlement-role { margin-top: 4px; color: var(--faint); font-size: 9px; }
.settlement-direction { display: grid; place-items: center; width: 25px; height: 25px; color: var(--accent); background: var(--accent-soft); border-radius: 8px; }
.settlement-direction svg { width: 13px; height: 13px; }
.settlement-amount { font-size: 12px; font-weight: 800; white-space: nowrap; color: var(--text); font-variant-numeric: tabular-nums; }
.settlement-footer { margin-top: 14px; padding-top: 13px; border-top: 1px solid var(--border); color: var(--faint); font-size: 10px; line-height: 1.5; }
.empty-state { display: grid; justify-items: center; text-align: center; padding: 23px 16px; color: var(--muted); border: 1px dashed var(--border-strong); border-radius: 14px; }
.empty-state.compact { padding: 19px 14px; }
.empty-symbol { display: grid; place-items: center; width: 34px; height: 34px; margin-bottom: 10px; color: var(--accent); background: var(--accent-soft); border-radius: 11px; font-size: 21px; }
.empty-state strong { color: var(--text); font-size: 12px; }
.empty-state p { max-width: 260px; margin: 6px 0 0; color: var(--faint); font-size: 10px; line-height: 1.6; }
.app-footer { display: flex; justify-content: space-between; gap: 12px; padding: 24px 2px 30px; color: var(--faint); font-size: 10px; }
.app-footer > span:first-child { color: var(--text); font-weight: 800; }
.app-footer > span:first-child span:last-child { color: var(--faint); font-weight: 400; margin-left: 5px; }
.toast { position: fixed; z-index: 10; left: 50%; bottom: 24px; transform: translate(-50%, 12px); opacity: 0; pointer-events: none; padding: 11px 16px; border: 1px solid var(--border-strong); border-radius: 12px; color: var(--text); background: var(--surface-strong); box-shadow: var(--shadow); font-size: 12px; transition: opacity .2s ease, transform .2s var(--ease); max-width: calc(100% - 32px); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.confirm-dialog { width: min(410px, calc(100% - 30px)); padding: 0; border: 1px solid var(--border-strong); border-radius: 22px; color: var(--text); background: var(--surface-strong); box-shadow: var(--shadow); }
.confirm-dialog::backdrop { background: rgba(4,3,8,.62); backdrop-filter: blur(5px); }
.confirm-dialog form { padding: 27px; }
.dialog-mark { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 17px; border-radius: 13px; color: var(--orange); background: var(--orange-soft); font-size: 23px; }
.confirm-dialog h2 { margin: 0 0 8px; font: 800 20px system-ui, sans-serif; }
.confirm-dialog p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 9px; margin-top: 23px; }
.primary-button { color: #fff; background: linear-gradient(135deg,#9b7af5,#7446d3); border: 1px solid transparent; }
.primary-button:hover { box-shadow: 0 7px 20px rgba(139,92,246,.25); transform: translateY(-1px); }
@keyframes rise-in { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
@keyframes row-in { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 950px) {
  .app-shell { width: min(760px, calc(100% - 36px)); }
  .workspace { grid-template-columns: 1fr; }
  .input-panel { order: 1; }
  .results-column { order: 2; grid-template-columns: 1fr 1fr; align-items: start; }
  .summary-panel { grid-column: 1 / -1; }
  .settlement-panel { grid-column: 1 / -1; }
  .metrics-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
}
@media (max-width: 600px) {
  .app-shell { width: calc(100% - 24px); }
  .topbar { height: 70px; }
  .local-status { display: none; }
  .intro { padding: 33px 0 23px; }
  .intro h1 { font-size: 36px; }
  .intro p { font-size: 13px; }
  .workspace { gap: 13px; }
  .panel { border-radius: 19px; }
  .input-panel, .summary-panel, .balances-panel, .settlement-panel { padding: 17px; }
  .panel-heading { margin-bottom: 19px; }
  .panel-heading h2 { font-size: 17px; }
  .results-column { grid-template-columns: 1fr; gap: 13px; }
  .summary-panel, .settlement-panel { grid-column: auto; }
  .person-row { grid-template-columns: 27px minmax(0,1fr) 91px 29px; gap: 6px; }
  .person-avatar { width: 26px; height: 26px; border-radius: 8px; }
  .person-name, .person-paid { height: 39px; padding-left: 8px; font-size: 11px; }
  .person-paid { padding-right: 19px; }
  .remove-button { width: 28px; }
  .transfer-row { grid-template-columns: minmax(0,1fr) 14px minmax(0,1fr) 78px 25px; gap: 5px; }
  .transfer-select, .transfer-amount { height: 38px; padding-left: 7px; font-size: 10px; }
  .transfer-select { padding-right: 13px; background-position: calc(100% - 7px) 16px, calc(100% - 3px) 16px; }
  .transfer-amount { padding-right: 5px; }
  .transfer-row .remove-button { width: 25px; }
  .transfer-arrow svg { width: 12px; }
  .metrics-grid { gap: 7px; }
  .metric-card { padding: 10px 9px; gap: 7px; }
  .metric-card strong { font-size: 12px; }
  .hero-total { padding: 16px; }
  .hero-amount { font-size: 29px; }
  .panel-footer { align-items: flex-start; flex-direction: column; }
  .app-footer { flex-direction: column; padding-top: 19px; }
  .settlement-row { grid-template-columns: minmax(0,1fr) 22px minmax(0,1fr); gap: 7px; }
  .settlement-amount { grid-column: 1 / -1; text-align: right; padding-top: 3px; }
  .dialog-actions { flex-wrap: wrap; }
}
@media (max-width: 370px) {
  .person-row { grid-template-columns: 24px minmax(0,1fr) 75px 25px; gap: 4px; }
  .person-name, .person-paid { font-size: 10px; }
  .transfer-row { grid-template-columns: minmax(0,1fr) 10px minmax(0,1fr) 64px 23px; gap: 3px; }
  .transfer-select { font-size: 9px; }
  .transfer-arrow svg { width: 10px; }
  .metrics-grid { grid-template-columns: 1fr; }
  .metric-card { display: grid; grid-template-columns: 28px minmax(0,1fr) auto; align-items: center; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

/* Accessible touch controls and Safari keyboard/safe-area support. */
html { scroll-padding-block: 20px 120px; }
body { min-height: 100svh; padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left); }
[hidden] { display: none !important; }
:root { --bg: #111216; --surface: rgba(31,32,40,.86); --surface-strong: #22232d; }
:root[data-theme="light"] { --bg: #f4f3f8; --surface: rgba(255,255,255,.86); --surface-strong: #fff; }
.panel { border-top-color: var(--border-strong); }
input, select { scroll-margin-block: 100px; }
button, .icon-button, .remove-button, .small-action, .text-button { min-width: 44px; min-height: 44px; touch-action: manipulation; }
input, .person-name, .person-paid, .transfer-select, .transfer-amount { font-size: 16px; min-height: 48px; }
.remove-button, .transfer-row .remove-button { width: 44px; }
.person-row { grid-template-columns: 30px minmax(0,1fr) minmax(100px,.7fr) 44px; }
.transfer-row { grid-template-columns: minmax(0,1fr) 18px minmax(0,1fr) 100px 44px; }
.field-error { display: block; color: var(--red); font-size: 12px; line-height: 1.5; padding-top: 5px; }
.field-error:empty { display: none; }
input[aria-invalid="true"] { border-color: var(--red); box-shadow: 0 0 0 2px var(--red-soft); }
.money-small:has(.field-error:not(:empty)) .currency-symbol { top: 24px; }
.balance-sub, .settlement-footer, .field-help, .section-title-row p { font-size: 12px; line-height: 1.6; }
.balance-status, .settlement-role, .metric-label, .privacy-note { font-size: 12px; }
.balance-name, .settlement-name, .settlement-amount { font-size: 14px; }
.balance-person, .balance-person > div { min-width: 0; }
.balance-value { white-space: normal; overflow-wrap: anywhere; }
.balance-row > div:last-child { flex-shrink: 0; min-width: 96px; max-width: 48%; }
.hero-amount { overflow-wrap: anywhere; }
.app-footer, .data-bar { background: var(--bg); }
.data-bar { width: min(1200px, calc(100% - 32px)); margin: 0 auto 24px; display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 12px; }
#storage-status[data-error="true"] { color: var(--red); }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 100; padding: 12px; background: var(--surface-strong); color: var(--text); border: 2px solid var(--accent); border-radius: 12px; }
.skip-link:focus { top: 16px; }
.mobile-dock { display: none; }
.update-banner { position: fixed; z-index: 30; left: 50%; bottom: calc(90px + env(safe-area-inset-bottom)); transform: translateX(-50%); width: min(440px, calc(100% - 24px)); display: flex; align-items: center; gap: 12px; padding: 16px; border: 1px solid var(--accent); border-radius: 18px; color: var(--text); background: var(--surface-strong); box-shadow: var(--shadow); font-size: 13px; }
.toast { bottom: calc(96px + env(safe-area-inset-bottom)); }
.confirm-dialog { max-height: calc(100dvh - 32px); overflow-y: auto; }
@media (max-width: 600px) {
 body { padding-bottom: calc(88px + env(safe-area-inset-bottom)); }
 .intro { padding-top: 24px; } .intro h1 { font-size: clamp(28px,8.5vw,36px); } .intro p { font-size: 15px; }
 .person-row { grid-template-columns: minmax(0,1fr) minmax(90px,.8fr) 44px; gap: 8px; }
 .person-avatar { display: none; }
 .person-name, .person-paid { font-size: 16px; height: 48px; }
 .transfer-row { grid-template-columns: minmax(0,1fr) 18px minmax(0,1fr) 44px; gap: 8px; padding: 12px 0; border-bottom: 1px solid var(--border); }
 .transfer-select, .transfer-amount { font-size: 16px; height: 48px; }
 .transfer-row .money-small { grid-column: 1 / 4; grid-row: 2; }
 .transfer-row .remove-button { grid-column: 4; grid-row: 1 / 3; }
 .transfer-amount { padding-right: 28px; }
 .metrics-grid { grid-template-columns: 1fr; }
 .metric-card { display: grid; grid-template-columns: 28px minmax(0,1fr) minmax(0,1fr); align-items: center; }
 .metric-card strong { font-size: 14px; text-align: right; }
 .section-title-row { flex-wrap: wrap; }
 .mobile-dock { position: fixed; z-index: 20; display: flex; gap: 8px; bottom: calc(10px + env(safe-area-inset-bottom)); left: max(12px,env(safe-area-inset-left)); right: max(12px,env(safe-area-inset-right)); padding: 7px; border: 1px solid var(--border-strong); border-radius: 20px; background: var(--surface-strong); box-shadow: var(--shadow); }
 .mobile-dock a { flex: 1; min-height: 48px; display: flex; align-items: center; justify-content: center; color: var(--muted); text-decoration: none; border-radius: 14px; font-size: 14px; font-weight: 650; }
 .mobile-dock a:last-child { color: var(--accent); background: var(--accent-soft); }
 body.keyboard-open .mobile-dock { display: none; }
 .secondary-button { min-height: 48px; } #add-person, #add-transfer { width: 100%; } .data-bar { flex-wrap: wrap; }
}
@supports not (backdrop-filter: blur(1px)) { .panel { background: var(--surface-strong); } }