/* ============================================================
   Healthcare Expense design system
   ============================================================ */
:root {
  --page: #f7f7f5;
  --surface: #ffffff;
  --chart-surface: #fcfcfb;
  --ink: #0b0b0b;
  --ink-secondary: #52514e;
  --ink-muted: #898781;
  --hairline: #e7e6e1;
  --gridline: #ecebe6;
  --baseline: #c3c2b7;

  --accent: #2a78d6;
  --accent-hover: #256abf;
  --accent-active: #1c5cab;
  --accent-soft: rgba(42, 120, 214, 0.09);
  --accent-ring: rgba(42, 120, 214, 0.28);

  --danger: #d03b3b;
  --danger-soft: rgba(208, 59, 59, 0.08);
  --good: #006300;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;

  --shadow-card: 0 1px 2px rgba(11, 11, 11, 0.04), 0 4px 16px rgba(11, 11, 11, 0.04);
  --shadow-pop: 0 4px 12px rgba(11, 11, 11, 0.08), 0 16px 48px rgba(11, 11, 11, 0.14);

  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { color-scheme: light; }

body {
  font-family: var(--font);
  background: var(--page);
  color: var(--ink);
  font-size: 14.5px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }

.sr-only {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

::selection { background: var(--accent-soft); }

/* ---------- Brand ---------- */
.brand { display: flex; align-items: center; gap: 9px; }
.brand-mark { display: inline-flex; width: 28px; height: 28px; flex: none; }
.brand-mark svg { width: 100%; height: 100%; display: block; }
.brand-name { font-weight: 700; font-size: 16.5px; letter-spacing: -0.02em; white-space: nowrap; }
.word-primary { color: var(--ink); }
.word-tag {
  display: inline-block;
  color: #fff;
  background: var(--accent-active);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-left: 0.26em;
  padding: 0.03em 0.34em 0.12em;
  border-radius: 0.34em;
}
.brand-lg .brand-mark { width: 40px; height: 40px; }
.brand-lg .brand-name { font-size: 23px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  font-weight: 600; font-size: 14px; letter-spacing: -0.01em;
  padding: 9px 16px; border-radius: 10px;
  transition: background-color 0.15s ease, box-shadow 0.15s ease, transform 0.06s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn .icon { width: 15px; height: 15px; }

.btn-primary {
  background: var(--accent); color: #fff;
  box-shadow: 0 1px 2px rgba(28, 92, 171, 0.35);
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:active { background: var(--accent-active); }
.btn-primary:disabled { opacity: 0.55; cursor: default; transform: none; }

.btn-secondary {
  background: var(--surface); border: 1px solid var(--hairline);
  box-shadow: 0 1px 2px rgba(11, 11, 11, 0.04);
}
.btn-secondary:hover { background: #f4f4f1; }

.btn-ghost { color: var(--ink-secondary); border-radius: 8px; padding: 7px 12px; }
.btn-ghost:hover { background: rgba(11, 11, 11, 0.05); color: var(--ink); }

.btn-sm { font-size: 13px; padding: 6px 11px; }
.btn-block { width: 100%; padding: 11px 16px; font-size: 15px; }

.btn-danger-ghost { color: var(--danger); }
.btn-danger-ghost:hover { background: var(--danger-soft); color: var(--danger); }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 8px; color: var(--ink-muted);
  transition: background-color 0.15s ease, color 0.15s ease;
}
.icon-btn:hover { background: rgba(11, 11, 11, 0.05); color: var(--ink); }
.icon-btn svg { width: 15px; height: 15px; }

:is(.btn, .icon-btn, .tab, input, select, textarea):focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-ring);
}

/* ---------- Fields ---------- */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field-label { font-size: 13px; font-weight: 600; color: var(--ink-secondary); }
.field-label .optional { font-style: normal; font-weight: 500; color: var(--ink-muted); margin-left: 4px; }

.field input, .field select, .field textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14.5px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-ring);
}
.field input::placeholder, .field textarea::placeholder { color: var(--ink-muted); }

.amount-wrap { position: relative; }
.amount-prefix {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--ink-muted); font-weight: 500; pointer-events: none;
}
.amount-wrap input { padding-left: 26px; font-variant-numeric: tabular-nums; }

.inline-add { display: flex; gap: 7px; margin-top: 8px; }
.inline-add input {
  flex: 1; min-width: 0;
  background: var(--surface); border: 1px solid var(--hairline);
  border-radius: 9px; padding: 7px 10px; font-size: 13.5px;
}
.inline-add input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); }

.form-error {
  background: var(--danger-soft); color: var(--danger);
  font-size: 13px; font-weight: 500;
  border-radius: 9px; padding: 9px 12px; margin-bottom: 14px;
  white-space: pre-line;
}

/* ---------- Select ---------- */
.select-wrap { position: relative; display: inline-flex; }
.select-wrap::after {
  content: ''; position: absolute; right: 12px; top: 50%;
  width: 8px; height: 8px; pointer-events: none;
  border-right: 1.6px solid var(--ink-muted); border-bottom: 1.6px solid var(--ink-muted);
  transform: translateY(-70%) rotate(45deg);
}
.select-wrap select {
  appearance: none; -webkit-appearance: none;
  background: var(--surface); border: 1px solid var(--hairline);
  border-radius: 10px; padding: 8px 32px 8px 12px;
  font-size: 13.5px; font-weight: 500; cursor: pointer;
  box-shadow: 0 1px 2px rgba(11, 11, 11, 0.03);
  transition: border-color 0.15s ease;
}
.select-wrap select:hover { border-color: var(--baseline); }
.select-block, .select-block select { width: 100%; }

/* ---------- Login ---------- */
.login-view {
  min-height: 100vh; display: flex; flex-direction: column;
  align-items: center; justify-content: center; padding: 24px;
  background:
    radial-gradient(700px 380px at 15% -5%, rgba(42, 120, 214, 0.09), transparent 65%),
    radial-gradient(600px 350px at 95% 100%, rgba(27, 175, 122, 0.07), transparent 65%),
    var(--page);
}
.login-card {
  width: 100%; max-width: 380px;
  background: var(--surface); border: 1px solid var(--hairline);
  border-radius: var(--radius-lg); padding: 36px 32px 30px;
  box-shadow: var(--shadow-pop);
  animation: rise 0.35s cubic-bezier(0.2, 0.8, 0.3, 1);
}
.login-sub { color: var(--ink-secondary); font-size: 14px; margin: 10px 0 26px; }
.login-foot { margin-top: 22px; color: var(--ink-muted); font-size: 12.5px; }

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 26px;
  padding: 0 clamp(16px, 4vw, 40px);
  height: 60px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
}
.tabs { display: flex; gap: 4px; }
.tab {
  padding: 7px 14px; border-radius: 9px;
  font-weight: 600; font-size: 14px; color: var(--ink-secondary);
  transition: background-color 0.15s ease, color 0.15s ease;
}
.tab:hover { color: var(--ink); background: rgba(11, 11, 11, 0.04); }
.tab.is-active { color: var(--accent); background: var(--accent-soft); }

.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.user-chip { font-size: 13.5px; font-weight: 600; color: var(--ink-secondary); }

/* ---------- Layout ---------- */
.main { max-width: 1120px; margin: 0 auto; padding: 30px clamp(16px, 4vw, 40px) 96px; }

.page-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 16px; margin-bottom: 22px; flex-wrap: wrap;
}
.page-title { font-size: 24px; font-weight: 700; letter-spacing: -0.025em; }
.page-sub { color: var(--ink-muted); font-size: 13.5px; margin-top: 3px; }
.page-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 20px 22px;
}
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 14px;
}
.card-title { font-size: 14.5px; font-weight: 650; letter-spacing: -0.01em; }
.card-hint { font-size: 12.5px; color: var(--ink-muted); }

/* ---------- Stat tiles ---------- */
.stat-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 14px; margin-bottom: 14px;
}
.stat-tile { display: flex; flex-direction: column; gap: 4px; padding: 18px 22px; }
.stat-label { font-size: 13px; font-weight: 600; color: var(--ink-secondary); }
.stat-value { font-size: 26px; font-weight: 700; letter-spacing: -0.03em; }
.stat-hero { font-size: 34px; font-weight: 800; }
.stat-foot { font-size: 12.5px; color: var(--ink-muted); min-height: 1.2em; }

/* ---------- Dashboard grid ---------- */
.dash-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 14px; align-items: start;
}
.span-2 { grid-column: span 2; }

/* ---------- Chart ---------- */
.chart-wrap { position: relative; width: 100%; }
.chart-wrap svg { display: block; width: 100%; height: auto; }
.chart-bar { transition: opacity 0.12s ease; }
.chart-hit { fill: transparent; cursor: pointer; }
.chart-empty {
  display: flex; align-items: center; justify-content: center;
  height: 180px; color: var(--ink-muted); font-size: 13.5px;
}
.chart-tooltip {
  position: fixed; z-index: 80; pointer-events: none;
  background: var(--ink); color: #fff;
  font-size: 12.5px; font-weight: 550; line-height: 1.35;
  border-radius: 8px; padding: 7px 10px;
  box-shadow: var(--shadow-pop);
  transform: translate(-50%, calc(-100% - 10px));
  white-space: nowrap;
}
.chart-tooltip .tt-val { font-weight: 700; font-variant-numeric: tabular-nums; }
.chart-tooltip .tt-muted { color: rgba(255, 255, 255, 0.65); font-weight: 450; }

/* ---------- Breakdown rows (by person / by type) ---------- */
.breakdown { display: flex; flex-direction: column; gap: 13px; }
.break-row { display: flex; flex-direction: column; gap: 5px; }
.break-top { display: flex; align-items: center; gap: 9px; }
.break-name { font-size: 13.5px; font-weight: 600; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.break-amount { font-size: 13.5px; font-weight: 650; font-variant-numeric: tabular-nums; }
.break-share { font-size: 12px; color: var(--ink-muted); width: 34px; text-align: right; font-variant-numeric: tabular-nums; }
.break-meter { height: 6px; border-radius: 4px; background: #f0efec; overflow: hidden; }
.break-fill { height: 100%; border-radius: 4px; transition: width 0.5s cubic-bezier(0.2, 0.8, 0.3, 1); }
.breakdown-empty { color: var(--ink-muted); font-size: 13.5px; padding: 14px 0 6px; }

.avatar {
  width: 26px; height: 26px; border-radius: 50%; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; letter-spacing: 0.01em;
}
.avatar-sm { width: 22px; height: 22px; font-size: 10px; }

.pill {
  display: inline-flex; align-items: center;
  background: #f2f1ee; color: var(--ink-secondary);
  font-size: 11.5px; font-weight: 600;
  border-radius: 999px; padding: 3px 9px;
  white-space: nowrap;
}

/* ---------- Recent list ---------- */
.recent-list { display: flex; flex-direction: column; }
.recent-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 2px;
  border-bottom: 1px solid var(--gridline);
}
.recent-row:last-child { border-bottom: 0; }
.recent-main { flex: 1; min-width: 0; }
.recent-desc { font-size: 13.5px; font-weight: 550; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.recent-meta { font-size: 12px; color: var(--ink-muted); margin-top: 1px; }
.recent-amount { font-size: 13.5px; font-weight: 650; font-variant-numeric: tabular-nums; }

/* ---------- Filters ---------- */
.filter-row {
  display: flex; align-items: center; gap: 9px;
  margin-bottom: 14px; flex-wrap: wrap;
}
.filter-total { margin-left: auto; font-size: 13px; color: var(--ink-secondary); font-weight: 550; }
.filter-total strong { font-variant-numeric: tabular-nums; }

/* ---------- Table ---------- */
.table-card { padding: 6px 0 0; overflow: hidden; }
.expense-table { width: 100%; border-collapse: collapse; }
.expense-table th {
  text-align: left; font-size: 11.5px; font-weight: 650;
  text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--ink-muted);
  padding: 10px 14px; border-bottom: 1px solid var(--hairline);
}
.expense-table td {
  padding: 11px 14px; font-size: 13.5px;
  border-bottom: 1px solid var(--gridline);
  vertical-align: middle;
}
.expense-table tbody tr { transition: background-color 0.12s ease; }
.expense-table tbody tr:hover { background: #fafaf8; }
.expense-table tbody tr:last-child td { border-bottom: 0; }
.td-date { color: var(--ink-secondary); white-space: nowrap; font-variant-numeric: tabular-nums; }
.td-person { white-space: nowrap; }
.td-person .avatar-sm { margin-right: 7px; vertical-align: middle; }
.td-desc { max-width: 300px; }
.td-desc .desc-text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: block; }
.td-desc .desc-notes { display: block; font-size: 12px; color: var(--ink-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.col-amount, .td-amount { text-align: right; }
.td-amount { font-weight: 650; font-variant-numeric: tabular-nums; white-space: nowrap; }
.col-actions, .td-actions { text-align: right; white-space: nowrap; width: 1%; }
.td-actions .icon-btn { opacity: 0; }
.expense-table tbody tr:hover .td-actions .icon-btn,
.td-actions .icon-btn:focus-visible { opacity: 1; }
.confirm-delete {
  font-size: 12.5px; font-weight: 600; color: var(--danger);
  background: var(--danger-soft); border-radius: 8px; padding: 6px 10px;
}

/* ---------- Empty state ---------- */
.empty-state {
  display: flex; flex-direction: column; align-items: center;
  text-align: center; padding: 52px 24px 56px; gap: 6px;
}
.empty-art { width: 64px; height: 64px; margin-bottom: 8px; }
.empty-art svg { width: 100%; height: 100%; }
.empty-title { font-size: 15.5px; font-weight: 650; }
.empty-sub { color: var(--ink-muted); font-size: 13.5px; max-width: 340px; margin-bottom: 12px; }

/* ---------- Slide-over ---------- */
.overlay {
  position: fixed; inset: 0; z-index: 60;
  background: rgba(11, 11, 11, 0.32);
  opacity: 0; transition: opacity 0.22s ease;
}
.overlay.is-open { opacity: 1; }

.slideover {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 70;
  width: min(420px, 100vw);
  background: var(--surface);
  box-shadow: var(--shadow-pop);
  display: flex; flex-direction: column;
  transform: translateX(105%);
  transition: transform 0.28s cubic-bezier(0.2, 0.8, 0.3, 1);
}
.slideover.is-open { transform: translateX(0); }
.slideover-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px 14px; border-bottom: 1px solid var(--hairline);
}
.slideover-title { font-size: 17px; font-weight: 700; letter-spacing: -0.02em; }
.slideover-body { padding: 20px 24px; overflow-y: auto; flex: 1; display: flex; flex-direction: column; }
.slideover-actions {
  display: flex; justify-content: flex-end; gap: 10px;
  margin-top: auto; padding-top: 18px;
}

/* ---------- Receipt scan ---------- */
#scan-block { margin-bottom: 18px; }
#scan-btn.is-busy { opacity: 0.7; pointer-events: none; }
#scan-btn.is-busy .icon { animation: pulse 1.1s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: 0.35; } }

.scan-note {
  margin-top: 10px;
  background: var(--accent-soft);
  border: 1px solid rgba(42, 120, 214, 0.18);
  border-radius: 10px;
  padding: 9px 12px;
  font-size: 12.5px;
  color: var(--ink-secondary);
  line-height: 1.45;
}
.scan-note strong { color: var(--ink); }
.scan-note.is-error {
  background: var(--danger-soft);
  border-color: rgba(208, 59, 59, 0.2);
  color: var(--danger);
}

.scan-divider {
  display: flex; align-items: center; gap: 10px;
  margin: 16px 0 2px;
  color: var(--ink-muted); font-size: 11.5px;
}
.scan-divider::before, .scan-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--hairline);
}

.ai-filled {
  background: var(--accent-soft) !important;
  border-color: rgba(42, 120, 214, 0.35) !important;
  transition: background-color 0.4s ease, border-color 0.4s ease;
}

/* ---------- FAB (mobile) ---------- */
.fab {
  position: fixed; right: 18px; bottom: 20px; z-index: 50;
  width: 54px; height: 54px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: none; align-items: center; justify-content: center;
  box-shadow: 0 6px 20px rgba(28, 92, 171, 0.45);
  transition: transform 0.12s ease, background-color 0.15s ease;
}
.fab:hover { background: var(--accent-hover); }
.fab:active { transform: scale(0.94); }
.fab svg { width: 22px; height: 22px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 26px; z-index: 90;
  transform: translate(-50%, 16px);
  background: var(--ink); color: #fff;
  font-size: 13.5px; font-weight: 550;
  border-radius: 10px; padding: 10px 18px;
  box-shadow: var(--shadow-pop);
  opacity: 0; transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
}
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

/* ---------- Skeletons ---------- */
.skeleton {
  position: relative; overflow: hidden;
  background: #efeeea; border-radius: 7px; color: transparent !important;
}
.skeleton::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.65), transparent);
  animation: shimmer 1.3s infinite;
}
@keyframes shimmer { from { transform: translateX(-100%); } to { transform: translateX(100%); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .dash-grid { grid-template-columns: 1fr; }
  .span-2 { grid-column: auto; }
  .stat-grid { grid-template-columns: 1fr; }
  .stat-tile { flex-direction: row; align-items: baseline; justify-content: space-between; flex-wrap: wrap; }
  .stat-hero { font-size: 27px; }
  .stat-value { font-size: 22px; }
  .stat-foot { width: 100%; }
}

@media (max-width: 720px) {
  .topbar { gap: 14px; }
  .user-chip { display: none; }
  .page-actions .btn-primary[data-action='add'] { display: none; }
  .fab { display: inline-flex; }

  /* table becomes cards */
  .expense-table thead { display: none; }
  .expense-table, .expense-table tbody, .expense-table tr, .expense-table td { display: block; }
  .expense-table tbody tr {
    display: grid;
    grid-template-columns: auto 1fr auto;
    grid-template-areas:
      'date  date    amount'
      'desc  desc    desc'
      'person type   actions';
    gap: 3px 10px; align-items: center;
    padding: 12px 16px; border-bottom: 1px solid var(--gridline);
  }
  .expense-table td { padding: 0; border: 0; }
  .td-date { grid-area: date; font-size: 12.5px; }
  .td-amount { grid-area: amount; font-size: 15px; }
  .td-desc { grid-area: desc; max-width: none; }
  .td-person { grid-area: person; }
  .td-type { grid-area: type; }
  .td-actions { grid-area: actions; }
  .td-actions .icon-btn { opacity: 1; }
}