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

:root {
  --navy:        #0f172a;
  --navy-mid:    #1e293b;
  --navy-light:  #334155;
  --gold:        #b45309;
  --gold-light:  #fef3c7;
  --blue:        #1e40af;
  --blue-hover:  #1d4ed8;
  --blue-light:  #eff6ff;
  --bg:          #f1f5f9;
  --surface:     #ffffff;
  --border:      #e2e8f0;
  --border-mid:  #cbd5e1;
  --text:        #0f172a;
  --text-mid:    #475569;
  --text-muted:  #94a3b8;
  --gain:        #16a34a;
  --gain-bg:     #f0fdf4;
  --loss:        #dc2626;
  --loss-bg:     #fef2f2;
  --warn-bg:     #fffbeb;
  --warn-border: #fcd34d;
  --radius:      6px;
  --radius-lg:   10px;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow:      0 4px 12px rgba(0,0,0,.10), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg:   0 20px 40px rgba(0,0,0,.15), 0 8px 16px rgba(0,0,0,.08);
  --sidebar-w:   280px;
}

html, body { height: 100%; font-family: "Segoe UI", system-ui, -apple-system, sans-serif; font-size: 14px; color: var(--text); background: var(--bg); }

/* ── Layout ── */
#app { display: flex; flex-direction: column; height: 100vh; }

header {
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 52px;
  flex-shrink: 0;
  border-bottom: 2px solid var(--gold);
  z-index: 10;
}
.header-brand { display: flex; align-items: center; gap: 10px; }
.header-brand h1 { font-family: Georgia, "Times New Roman", serif; font-size: 17px; font-weight: 700; letter-spacing: .3px; color: #fff; }
.header-brand .brand-sub { font-size: 11px; color: var(--text-muted); letter-spacing: .5px; text-transform: uppercase; }
.header-right { display: flex; align-items: center; gap: 8px; }
.dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: #4ade80; margin-right: 4px; vertical-align: middle; }
.dot.stale { background: #fbbf24; }
.dot.error { background: #f87171; }

.main-body { display: flex; flex: 1; overflow: hidden; }

/* ── Sidebar ── */
#sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.sidebar-scroll { flex: 1; overflow-y: auto; padding: 12px 0; }
.sidebar-header { padding: 12px; border-bottom: 1px solid var(--border); }
.sidebar-footer { padding: 12px; border-top: 1px solid var(--border); }
.sidebar-prices {
  padding: 10px 12px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex-shrink: 0;
}
#prices-status { font-size: 11px; color: var(--text-muted); }
.prices-btns { display: flex; gap: 6px; }

.account-group { margin-bottom: 4px; }
.account-header {
  display: flex;
  align-items: center;
  padding: 7px 12px;
  cursor: pointer;
  user-select: none;
}
.account-header:hover { background: var(--bg); }
.account-name { flex: 1; font-weight: 600; font-size: 13px; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.account-actions { display: flex; gap: 2px; opacity: 0; transition: opacity .15s; }
.account-header:hover .account-actions { opacity: 1; }
.icon-btn {
  background: none; border: none; cursor: pointer; padding: 3px 5px; border-radius: 4px;
  font-size: 13px; color: var(--text-mid); line-height: 1;
}
.icon-btn:hover { background: var(--border); color: var(--text); }
.icon-btn.danger:hover { background: var(--loss-bg); color: var(--loss); }

.wallet-list { padding-left: 0; }
.wallet-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 6px 28px;
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: all .12s;
}
.wallet-item:hover { background: var(--blue-light); border-left-color: var(--border-mid); }
.wallet-item.active { background: var(--blue-light); border-left-color: var(--blue); }
.wallet-item.active .wallet-label { color: var(--blue); font-weight: 600; }
.wallet-currency-badge {
  width: 22px; height: 22px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; flex-shrink: 0;
}
.badge-btc { background: #fff7ed; color: #c2410c; }
.badge-usd { background: #f0fdf4; color: #15803d; }
.wallet-label { font-size: 13px; color: var(--text-mid); flex: 1; }
.wallet-synced { font-size: 11px; color: var(--text-muted); }

.empty-sidebar { padding: 32px 16px; text-align: center; color: var(--text-muted); }
.empty-sidebar p { font-size: 13px; line-height: 1.5; margin-bottom: 16px; }

/* ── Detail Panel ── */
#detail {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.empty-detail { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; color: var(--text-muted); gap: 12px; }
.empty-detail .empty-icon { font-size: 48px; opacity: .3; }
.empty-detail p { font-size: 14px; }

.detail-header { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.detail-title { font-family: Georgia, serif; font-size: 22px; font-weight: 700; color: var(--navy); }
.detail-title span { font-size: 13px; font-family: inherit; font-weight: 400; color: var(--text-muted); margin-left: 8px; }
.detail-meta { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.controls-row {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 12px 16px; box-shadow: var(--shadow-sm);
}
.controls-row label { font-size: 12px; font-weight: 600; color: var(--text-mid); text-transform: uppercase; letter-spacing: .4px; }
.controls-row select, .controls-row input[type="date"] {
  border: 1px solid var(--border-mid); border-radius: var(--radius); padding: 5px 8px;
  font-size: 13px; color: var(--text); background: var(--bg);
  cursor: pointer; outline: none;
}
.controls-row select:focus, .controls-row input[type="date"]:focus { border-color: var(--blue); background: var(--surface); }
.ctrl-group { display: flex; align-items: center; gap: 6px; }
.ctrl-sep { width: 1px; height: 24px; background: var(--border); }

/* ── Cards ── */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); overflow: hidden; }
.card-header { padding: 14px 18px 10px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.card-title { font-family: Georgia, serif; font-size: 14px; font-weight: 700; color: var(--navy); letter-spacing: .2px; }
.card-body { padding: 0; }

/* ── Tables ── */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead th {
  padding: 10px 14px; text-align: left; font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .5px; color: var(--text-mid);
  background: var(--bg); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 1;
}
thead th:last-child, thead th.num { text-align: right; }
tbody tr { border-bottom: 1px solid var(--border); transition: background .1s; }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--bg); }
tbody tr:nth-child(even) { background: #fafbfc; }
tbody tr:nth-child(even):hover { background: var(--bg); }
td { padding: 9px 14px; color: var(--text); vertical-align: middle; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
td.muted { color: var(--text-muted); font-size: 12px; }
.gain-val { color: var(--gain); font-weight: 600; }
.loss-val { color: var(--loss); font-weight: 600; }
.year-label { font-family: Georgia, serif; font-weight: 700; font-size: 13px; }
.type-sell { background: #eff6ff; color: #1d4ed8; font-size: 11px; font-weight: 600; padding: 2px 7px; border-radius: 10px; letter-spacing: .3px; }
.type-fee  { background: #f5f3ff; color: #6d28d9; font-size: 11px; font-weight: 600; padding: 2px 7px; border-radius: 10px; letter-spacing: .3px; }

/* ── Warnings ── */
.warnings-box { background: var(--warn-bg); border: 1px solid var(--warn-border); border-radius: var(--radius); padding: 12px 16px; }
.warnings-box summary { cursor: pointer; font-weight: 600; font-size: 13px; color: #92400e; user-select: none; }
.warnings-box ul { margin-top: 8px; padding-left: 16px; }
.warnings-box li { font-size: 12px; color: #78350f; margin-bottom: 4px; line-height: 1.5; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: var(--radius); border: none;
  font-size: 13px; font-weight: 600; cursor: pointer; transition: all .12s; line-height: 1;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-hover); }
.btn-primary:disabled { background: var(--border-mid); cursor: not-allowed; }
.btn-secondary { background: var(--surface); color: var(--text); border: 1px solid var(--border-mid); }
.btn-secondary:hover { background: var(--bg); border-color: var(--navy-light); }
.btn-danger { background: var(--loss-bg); color: var(--loss); border: 1px solid #fecaca; }
.btn-danger:hover { background: #fee2e2; }
.btn-ghost { background: rgba(255,255,255,.1); color: #fff; border: 1px solid rgba(255,255,255,.2); }
.btn-ghost:hover { background: rgba(255,255,255,.2); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-full { width: 100%; justify-content: center; }

/* ── Modals ── */
.overlay {
  position: fixed; inset: 0; background: rgba(15,23,42,.6);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; backdrop-filter: blur(3px);
  opacity: 0; pointer-events: none; transition: opacity .2s;
}
.overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--surface); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); width: 480px; max-width: calc(100vw - 40px);
  max-height: calc(100vh - 80px); display: flex; flex-direction: column;
  transform: translateY(12px); transition: transform .2s;
}
.overlay.open .modal { transform: translateY(0); }
.modal-header {
  padding: 20px 24px 16px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; flex-shrink: 0;
}
.modal-header h2 { font-family: Georgia, serif; font-size: 18px; font-weight: 700; color: var(--navy); }
.modal-close { background: none; border: none; cursor: pointer; font-size: 18px; color: var(--text-muted); line-height: 1; padding: 4px; }
.modal-close:hover { color: var(--text); }
.modal-body { padding: 20px 24px; overflow-y: auto; flex: 1; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; flex-shrink: 0; }

/* ── Form elements ── */
.form-group { margin-bottom: 16px; }
.form-group:last-child { margin-bottom: 0; }
.form-label { display: block; font-size: 12px; font-weight: 600; color: var(--text-mid); text-transform: uppercase; letter-spacing: .4px; margin-bottom: 6px; }
.form-input {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border-mid);
  border-radius: var(--radius); font-size: 14px; color: var(--text);
  background: var(--surface); outline: none; transition: border-color .12s;
}
.form-input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(30,64,175,.1); }
.form-hint { font-size: 11px; color: var(--text-muted); margin-top: 5px; font-family: "Courier New", monospace; background: var(--bg); padding: 4px 8px; border-radius: 4px; }
.form-select { width: 100%; padding: 9px 12px; border: 1px solid var(--border-mid); border-radius: var(--radius); font-size: 14px; color: var(--text); background: var(--surface); outline: none; cursor: pointer; }
.form-select:focus { border-color: var(--blue); }

.type-toggle { display: flex; gap: 0; border: 1px solid var(--border-mid); border-radius: var(--radius); overflow: hidden; }
.type-btn { flex: 1; padding: 9px; border: none; background: var(--surface); font-size: 14px; font-weight: 500; color: var(--text-mid); cursor: pointer; transition: all .12s; }
.type-btn:hover { background: var(--bg); }
.type-btn.active { background: var(--blue); color: #fff; font-weight: 600; }

.wallet-fetch-list { margin-top: 12px; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.wallet-fetch-item { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-bottom: 1px solid var(--border); }
.wallet-fetch-item:last-child { border-bottom: none; }

.csv-preview { margin-top: 10px; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; font-family: "Courier New", monospace; font-size: 11px; }
.csv-preview-row { padding: 5px 10px; border-bottom: 1px solid var(--border); color: var(--text-mid); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.csv-preview-row:last-child { border-bottom: none; }
.csv-preview-row.header-row { background: var(--bg); font-weight: 700; color: var(--text); }

.checkbox-row { display: flex; align-items: flex-start; gap: 10px; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); }
.checkbox-row input[type="checkbox"] { margin-top: 2px; flex-shrink: 0; accent-color: var(--blue); width: 16px; height: 16px; cursor: pointer; }
.checkbox-row label { font-size: 13px; color: var(--text-mid); cursor: pointer; line-height: 1.5; }

.terms-scroll { max-height: 200px; overflow-y: auto; border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; font-size: 12px; color: var(--text-mid); line-height: 1.7; background: var(--bg); }
.terms-scroll p { margin-bottom: 10px; }
.terms-scroll p:last-child { margin-bottom: 0; }

.loading-state { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-muted); padding: 12px 0; }
.spinner { width: 16px; height: 16px; border: 2px solid var(--border); border-top-color: var(--blue); border-radius: 50%; animation: spin .6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.stat-row { display: flex; gap: 16px; flex-wrap: wrap; }
.stat-card { flex: 1; min-width: 130px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; }
.stat-label { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .5px; color: var(--text-muted); margin-bottom: 4px; }
.stat-value { font-size: 18px; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--navy); }
.stat-value.gain { color: var(--gain); }
.stat-value.loss { color: var(--loss); }

#loading-screen { position: fixed; inset: 0; background: var(--navy); display: flex; flex-direction: column; align-items: center; justify-content: center; z-index: 9999; gap: 16px; transition: opacity .4s; }
#loading-screen.fade-out { opacity: 0; pointer-events: none; }
#loading-screen h2 { font-family: Georgia, serif; color: #fff; font-size: 22px; }
#loading-screen p { color: #94a3b8; font-size: 13px; }
#loading-screen .spinner { width: 28px; height: 28px; border-width: 3px; border-color: rgba(255,255,255,.2); border-top-color: var(--gold); }

.hidden { display: none !important; }

/* ── Date picker ── */
.date-picker-wrap { position: relative; display: inline-flex; align-items: center; }
.date-picker-wrap input[type="text"] { border: 1px solid var(--border-mid); border-radius: 4px; padding: 3px 24px 3px 6px; font-size: 12px; color: var(--text); background: var(--bg); width: 96px; font-family: monospace; outline: none; }
.date-picker-wrap input[type="text"]:focus { border-color: var(--blue); }
.date-picker-native { position: absolute; opacity: 0; pointer-events: none; width: 0; height: 0; }
.date-picker-btn { position: absolute; right: 4px; background: none; border: none; cursor: pointer; font-size: 12px; padding: 0; line-height: 1; color: var(--text-muted); }
.date-picker-btn:hover { color: var(--text); }

/* ── Disposal lot expansion ── */
.disposal-row:hover { background: var(--blue-light) !important; }
.disposal-row td:first-child { transition: transform .15s; }
.lot-group td { padding: 5px 14px; border-bottom: none; }
.lot-group > td { padding: 0; }
.lot-row { background: var(--bg); }
.lot-row:last-child td { border-bottom: 1px solid var(--border); }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.mt-4 { margin-top: 16px; }
.flex { display: flex; }
.gap-2 { gap: 8px; }

/* ── Mobile responsive ── */
.btn-back { display: none; }

@media (max-width: 768px) {
  .main-body { flex-direction: column; }

  #sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    /* height auto so content determines size */
    max-height: 100%;
    overflow: hidden;
    transition: max-height .25s ease, opacity .2s ease;
  }

  /* When sidebar is collapsed (wallet selected) */
  #sidebar.sidebar-hidden {
    max-height: 0;
    opacity: 0;
    border-bottom: none;
    pointer-events: none;
  }

  #detail {
    padding: 16px;
  }

  /* Back button visible on mobile */
  .btn-back {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: none;
    border: none;
    color: var(--blue);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    margin-bottom: 12px;
  }
  .btn-back:hover { color: var(--blue-hover); }

  /* Tighten up header on small screens */
  .header-brand h1 { font-size: 15px; }

  /* Make tables horizontally scrollable */
  .card { overflow-x: auto; }

  /* Hide Count column in Yearly Summary */
  .tbl-yearly th:nth-child(2),
  .tbl-yearly td:nth-child(2) { display: none; }
}