:root {
  --bg: #0b1120;
  --panel: #131c31;
  --panel-2: #182238;
  --border: #263349;
  --text: #e5e9f0;
  --muted: #8b96ab;
  --accent: #2dd4bf;
  --accent-dark: #0f766e;
  --danger: #fb7185;
  --good: #4ade80;
  --personal: #c99a5b;
  --personal-bg: rgba(201, 154, 91, 0.12);
  --radius: 12px;
}

:root[data-theme="light"] {
  --bg: #eceff3;
  --panel: #ffffff;
  --panel-2: #f5f6f8;
  --border: #dde1e7;
  --text: #1c2331;
  --muted: #6b7280;
  --accent: #0d9488;
  --accent-dark: #0f766e;
  --danger: #e11d48;
  --good: #16a34a;
  --personal: #a6690f;
  --personal-bg: rgba(166, 105, 15, 0.1);
}

:root[data-theme="light"] table.expenses tbody tr:nth-child(odd) td { background: #f9fafb; }
:root[data-theme="light"] table.expenses tbody tr:hover td { background: #eef1f5; }
:root[data-theme="light"] .balance-pill,
:root[data-theme="light"] .chip,
:root[data-theme="light"] .btn,
:root[data-theme="light"] .tab-btn,
:root[data-theme="light"] .settle-row,
:root[data-theme="light"] .short-link {
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.06);
}
:root[data-theme="light"] .btn.primary { color: #fff; }

* { box-sizing: border-box; }

:root { color-scheme: dark; }
:root[data-theme="light"] { color-scheme: light; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  transition: background 0.15s ease, color 0.15s ease;
  color: var(--text);
}

#app { max-width: 980px; margin: 0 auto; padding: 24px 16px 80px; }

a { color: var(--accent); }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 24px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; }
.brand .logo { width: 32px; height: 32px; }

.btn {
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent-dark); border-color: var(--accent-dark); color: #f0fdfa; font-weight: 600; }
.btn.primary:hover { background: var(--accent); border-color: var(--accent); color: #04231f; }
.btn.danger { color: var(--danger); }
.btn.small { padding: 4px 8px; font-size: 12px; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 18px;
}

.field { margin-bottom: 12px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.field input[type="text"], .field input[type="date"], .field input[type="number"], .field select {
  width: 100%; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font-size: 14px;
}
.row { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 140px; }

.report-list { display: flex; flex-direction: column; gap: 10px; }
.report-list-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 14px; background: var(--panel-2); border-radius: 10px; border: 1px solid var(--border);
  text-decoration: none; color: var(--text);
}
.report-list-item:hover { border-color: var(--accent); }
.report-list-item .meta { color: var(--muted); font-size: 13px; }

.people-strip { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0; }
.chip {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 10px; border-radius: 999px; font-size: 13px; cursor: grab;
  border: 1px solid var(--border); background: var(--panel-2);
}
.chip .dot { width: 10px; height: 10px; border-radius: 50%; }
.chip.dragging { opacity: 0.4; }
.chip .remove { color: var(--muted); cursor: pointer; font-weight: 700; }
.chip .remove:hover { color: var(--danger); }

table.expenses {
  width: 100%; border-collapse: collapse; border-radius: var(--radius); overflow: hidden;
  font-size: 14px;
}
table.expenses thead th {
  text-align: left; background: var(--panel-2); color: var(--muted);
  font-weight: 600; padding: 10px 12px; border-bottom: 1px solid var(--border);
}
table.expenses tbody td {
  padding: 10px 12px; border-bottom: 1px solid var(--border); background: var(--panel);
}
table.expenses tbody tr:nth-child(odd) td { background: #101a2e; }
table.expenses tbody tr:hover td { background: #17223a; }
table.expenses td.amount-col { color: var(--good); font-weight: 600; }
table.expenses td.date-col { color: var(--muted); }
table.expenses input {
  background: transparent; border: 1px solid transparent; color: var(--text);
  padding: 4px 6px; border-radius: 6px; width: 100%; font-size: 14px;
}
table.expenses td:first-child { white-space: nowrap; }
table.expenses input[data-field="label"] {
  width: auto; min-width: 90px; max-width: none;
}
table.expenses input:hover, table.expenses input:focus {
  border-color: var(--border); background: var(--bg); outline: none;
}
.shares-cell { display: flex; flex-wrap: wrap; gap: 6px; }
.share-pill {
  display: flex; align-items: center; gap: 4px; padding: 2px 6px; border-radius: 999px;
  font-size: 12px; border: 1px solid var(--border);
}
.share-pill input {
  width: 64px !important; min-width: 64px; text-align: center; padding: 2px !important;
}

.offset-chips { display: flex; flex-direction: column; gap: 3px; margin-bottom: 4px; }
.offset-chip {
  font-size: 12px; color: var(--muted); background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 6px; padding: 2px 6px; white-space: nowrap;
}

.breakdown-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.person-breakdown {
  background: var(--panel-2); border: 1px solid var(--border); border-left: 3px solid var(--dot);
  border-radius: 0; padding: 12px;
}
.person-breakdown .name { display: flex; align-items: center; gap: 6px; font-weight: 700; margin-bottom: 8px; }
.person-breakdown .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--dot); flex-shrink: 0; }
.person-breakdown .line { display: flex; justify-content: space-between; font-size: 12.5px; color: var(--muted); padding: 2px 0; }
.person-breakdown .line b { color: var(--text); font-weight: 400; }
.person-breakdown .line.personal b { color: var(--personal); font-weight: 400; }
.person-breakdown .line.personal.credit b { color: var(--good); }
.person-breakdown .line.total { border-top: 1px solid var(--border); margin-top: 6px; padding-top: 6px; font-size: 13.5px; }
.person-breakdown .line.total b { color: var(--accent); font-size: 15px; font-weight: 700; }

.balances { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.balance-pill {
  padding: 8px 12px; border-radius: 10px; font-size: 13px; border: 1px solid var(--border);
  background: var(--panel-2);
}
.balance-pill.positive { color: var(--good); border-color: var(--good); }
.balance-pill.negative { color: var(--danger); border-color: var(--danger); }

.mic-btn {
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  border-radius: 8px; padding: 8px 10px; cursor: pointer;
}
.mic-btn.recording { background: var(--danger); border-color: var(--danger); color: #fff; animation: pulse 1s infinite; }
@keyframes pulse { 0%{opacity:1;} 50%{opacity:0.5;} 100%{opacity:1;} }

.tabs { display: flex; gap: 6px; margin-bottom: 14px; }
.tab-btn {
  border: 1px solid var(--border); background: var(--panel); color: var(--muted);
  padding: 8px 16px; border-radius: 8px 8px 0 0; cursor: pointer; font-size: 14px; font-weight: 600;
}
.tab-btn.active { background: var(--panel-2); color: var(--text); border-bottom: 2px solid var(--accent); }

table.expenses.pivot thead th { text-align: center; }
table.expenses.pivot tbody td { text-align: center; }
table.expenses.pivot tbody td:first-child { text-align: left; }
table.expenses.pivot tr.paid-row td:first-child { font-style: italic; color: var(--accent); font-size: 13px; }
table.expenses.pivot tr.paid-row td.paid-cell:not(:empty) { color: var(--danger); font-weight: 400; font-style: normal; }
table.expenses.pivot tr.offset-row td { font-style: normal; font-size: 13px; }
table.expenses.pivot tr.offset-row td:first-child { font-style: italic; color: var(--personal); white-space: nowrap; }
table.expenses.pivot tr.offset-row td.offset-cell:not(:empty) { color: var(--personal); font-weight: 400; }
table.expenses.pivot tr.redistribution-row td:first-child { color: var(--accent); }
table.expenses.pivot tr.redistribution-row td.redistribution-cell:not(:empty) { color: var(--accent); font-weight: 400; }
table.expenses.pivot tr.offset-row td.offset-cell.credit:not(:empty) { color: var(--good); }
.offset-label { font-size: 10.5px; font-weight: 400; color: var(--muted); white-space: nowrap; }
table.expenses.pivot tr.balance-row td {
  font-weight: 700; border-top: 2px solid var(--border); background: var(--panel-2) !important;
}
table.expenses.pivot tr.balance-row td.balance-positive { color: var(--good); }
table.expenses.pivot tr.balance-row td.balance-negative { color: var(--danger); }
.balance-ok { color: var(--good); }

.settle-row {
  padding: 10px 12px; border-radius: 0; background: var(--panel-2); border: 1px solid var(--border);
  margin-bottom: 8px; font-size: 14px; cursor: pointer; transition: opacity 0.2s ease, transform 0.15s ease;
  position: relative; overflow: hidden;
}
.settle-row:hover { border-color: var(--accent); }
.settle-row.row-dim { opacity: 0.25; }
.settle-row.settle-paid { filter: grayscale(0.85); opacity: 0.6; }
.settle-row.settle-paid:hover { opacity: 0.8; }
.settle-row .paid-stamp {
  position: absolute; top: 50%; right: 14px; transform: translateY(-50%) rotate(-10deg);
  color: var(--good); border: 2px solid var(--good); border-radius: 4px;
  font-size: 15px; font-weight: 800; letter-spacing: 0.05em;
  padding: 3px 10px; opacity: 0.28;
  pointer-events: none; z-index: 0;
}
.settle-row [data-toggle-paid] { margin-top: 8px; }
.settle-who { display: flex; justify-content: space-between; align-items: center; gap: 10px; position: relative; z-index: 1; }
.settle-amount { color: var(--good); font-weight: 600; text-align: right; white-space: nowrap; }
.settle-methods { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; margin-top: 6px; }
.settle-method {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted);
  white-space: nowrap;
}
.settle-method .qr-thumb { width: 28px; height: 28px; }

.copyable {
  cursor: pointer; border-bottom: 1px dashed var(--muted); padding-bottom: 1px;
}
.copyable:hover { color: var(--accent); border-color: var(--accent); }

.qr-clickable {
  cursor: zoom-in; transition: transform 0.15s ease; border-radius: 6px;
  border: 2px solid var(--accent);
  animation: qr-pulse 1.8s ease-in-out infinite;
}
.qr-clickable:hover { transform: scale(1.2); animation-play-state: paused; }
@keyframes qr-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.55); }
  50% { box-shadow: 0 0 0 5px rgba(45, 212, 191, 0); }
}

.qr-modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.9); z-index: 2000;
  display: flex; align-items: center; justify-content: center; flex-direction: column;
  animation: modal-fade-in 0.2s ease-out; cursor: zoom-out;
  padding: 24px; box-sizing: border-box;
}
.qr-modal {
  background: #fff; padding: 24px; border-radius: 16px; text-align: center;
  animation: modal-pop-in 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  width: 100%; height: 100%; max-width: 640px; max-height: 900px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.qr-modal img { width: 100%; height: 100%; max-width: 100%; max-height: calc(100% - 40px); object-fit: contain; border-radius: 8px; }
.pdf-slide { width: 100%; height: calc(100% - 40px); border: none; border-radius: 8px; background: #525659; }
.qr-modal p { color: #1c2331; margin: 14px 0 0; font-size: 14px; flex-shrink: 0; }
@keyframes modal-fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes modal-pop-in { from { opacity: 0; transform: scale(0.85); } to { opacity: 1; transform: scale(1); } }

.info-popup-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 2000;
  display: flex; align-items: center; justify-content: center;
  animation: modal-fade-in 0.15s ease-out; cursor: pointer; padding: 24px; box-sizing: border-box;
}
.info-popup {
  background: var(--panel); color: var(--text); border: 1px solid var(--border);
  border-radius: 12px; padding: 18px 22px; max-width: 320px; text-align: center;
  font-size: 14px; line-height: 1.5; animation: modal-pop-in 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: default;
}

table.expenses.pivot th[data-person-id], table.expenses.pivot td[data-person-id] {
  transition: opacity 0.2s ease;
}
.col-dim { opacity: 0.2; }
.col-highlight { box-shadow: inset 0 0 0 9999px rgba(255,255,255,0.04); }
table.expenses.pivot [data-person-id],
.settle-who [data-person-id] { cursor: pointer; }

@media (max-width: 480px) {
  .settle-who { flex-wrap: wrap; }
  .settle-methods { flex-direction: column; align-items: flex-start; gap: 12px; }
  .settle-method {
    font-size: 13px; width: 100%; padding: 6px 0; border-bottom: 1px solid var(--border);
  }
  .settle-method:last-child { border-bottom: none; }
}

.payment-method-row {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  padding: 10px; border: 1px solid var(--border); border-radius: 8px; margin-bottom: 8px; background: var(--panel);
}
.payment-method-row select, .payment-method-row input[type="text"] { width: auto; min-width: 140px; }
.qr-upload { display: flex; align-items: center; gap: 10px; }
.qr-thumb { width: 40px; height: 40px; object-fit: cover; border-radius: 6px; border: 1px solid var(--border); }
.receipt-inline-thumb { width: 22px; height: 22px; vertical-align: middle; margin-left: 4px; }
.pdf-thumb {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--panel-2); font-size: 18px; line-height: 1;
}
.receipt-link {
  display: inline-block; margin-top: 2px; font-size: 11px; font-weight: 500;
  color: var(--accent); text-decoration: underline; cursor: pointer; white-space: nowrap;
}
.receipt-link:hover { color: var(--good); }

.report-name-input {
  display: block; width: 100%; font-size: 24px; font-weight: 700; font-family: inherit;
  color: var(--text); background: transparent; border: 1px solid transparent;
  border-radius: 8px; padding: 4px 8px; margin: 0 0 12px -8px;
}
.report-name-input:hover { border-color: var(--border); }
.report-name-input:focus { border-color: var(--accent); background: var(--panel-2); outline: none; }

.help-q {
  display: inline-flex; align-items: center; justify-content: center;
  width: 15px; height: 15px; border-radius: 50%; margin-left: 4px;
  background: var(--panel-2); border: 1px solid var(--muted); color: var(--muted);
  font-size: 10px; font-weight: 700; cursor: help; vertical-align: middle;
  position: relative; top: -1px;
}
.help-q:hover { border-color: var(--accent); color: var(--accent); }

.help-link {
  font-size: 13px; color: var(--muted); text-decoration: underline;
  cursor: pointer; font-style: normal;
}
.help-link:hover { color: var(--accent); }

.qr-dropzone {
  display: flex; align-items: center; gap: 8px;
  border: 2px dashed var(--border); border-radius: 10px;
  padding: 8px 14px; cursor: pointer; font-size: 13px; color: var(--muted);
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}
.qr-dropzone:hover { border-color: var(--accent); color: var(--text); }
.qr-dropzone.small { padding: 5px 10px; font-size: 12px; border-radius: 8px; }
.settle-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
.receipt-row { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
.qr-dropzone.drag-over {
  border-color: var(--accent); background: rgba(45, 212, 191, 0.1);
  color: var(--text); transform: scale(1.03);
  animation: dropzone-pulse 1s ease-in-out infinite;
}
@keyframes dropzone-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.35); }
  50% { box-shadow: 0 0 0 6px rgba(45, 212, 191, 0); }
}
.qr-dropzone .icon { font-size: 18px; }

.toast-container {
  position: fixed; bottom: 20px; right: 20px; z-index: 1000;
  display: flex; flex-direction: column; gap: 10px; align-items: flex-end;
}
.toast {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; border-radius: 10px; font-size: 14px; font-weight: 600;
  color: #fff; box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  animation: toast-in 0.25s ease-out;
  max-width: 320px;
}
.toast.success { background: #16a34a; }
.toast.error { background: #e11d48; }
.toast.leaving { animation: toast-out 0.25s ease-in forwards; }
@keyframes toast-in {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes toast-out {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(30px); }
}

.chip .edit { color: var(--muted); cursor: pointer; }
.chip .edit:hover { color: var(--accent); }

.theme-toggle {
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  width: 36px; height: 36px; border-radius: 8px; cursor: pointer; font-size: 16px;
  display: inline-flex; align-items: center; justify-content: center;
}
.theme-toggle:hover { border-color: var(--accent); }

.short-link {
  display: flex; align-items: center; gap: 8px; background: var(--panel-2);
  border: 1px dashed var(--border); border-radius: 8px; padding: 8px 12px; font-size: 13px;
}

.muted { color: var(--muted); font-size: 13px; }
.center { text-align: center; }
.login-screen { text-align: center; padding: 80px 0; }

.settled-banner {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 20px; margin-bottom: 18px;
  border: 2px solid var(--good); background: rgba(74, 222, 128, 0.12);
  border-radius: 0;
}
.settled-check {
  width: 48px; height: 48px; flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  background: var(--good); color: #062b12; font-size: 30px; font-weight: 800; border-radius: 50%;
}
.settled-title { font-size: 22px; font-weight: 800; letter-spacing: 0.08em; color: var(--good); }
.settled-sub { font-size: 13px; color: var(--muted); margin-top: 2px; }

.done-check { color: var(--good); font-weight: 800; }
.paid-pill {
  display: inline-block; margin-top: 4px; padding: 2px 8px; border-radius: 999px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.03em;
  color: var(--good); border: 1px solid var(--good); background: rgba(74, 222, 128, 0.12);
}
.person-breakdown .name .card-paid { margin: 0 0 0 auto; }

table.expenses input[data-field="amount"] { width: 110px; min-width: 110px; }
table.expenses td.amount-col { white-space: nowrap; min-width: 124px; }