:root {
  --bg: #0f0f1a;
  --bg2: #1a1a2e;
  --bg3: #16213e;
  --accent: #6366f1;
  --accent2: #818cf8;
  --success: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
  --text: #e2e8f0;
  --text2: #94a3b8;
  --border: #2d2d4a;
  --radius: 12px;
  --radius-sm: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

html, body {
  height: 100%; width: 100%; overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg); color: var(--text);
  font-size: 15px; line-height: 1.5;
}

/* ─── Screens ─────────────────────────────────────────── */
.screen { position: fixed; inset: 0; overflow-y: auto; }
.screen.hidden { display: none; }
.screen.active { display: flex; flex-direction: column; }

/* ─── Login ───────────────────────────────────────────── */
#screen-login {
  align-items: center; justify-content: center; padding: 24px;
}
.login-box {
  width: 100%; max-width: 360px;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px 24px;
  text-align: center;
}
.login-box .logo { margin-bottom: 16px; }
.login-box h1 { font-size: 22px; margin-bottom: 24px; }
.login-box input {
  display: block; width: 100%; padding: 12px 16px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text);
  font-size: 16px; margin-bottom: 12px;
  -webkit-appearance: none;
}
.login-box input:focus { outline: none; border-color: var(--accent); }

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

header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; background: var(--bg2); border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  padding-top: max(12px, env(safe-area-inset-top));
}
.header-left { font-weight: 600; font-size: 16px; }
.month-select {
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); padding: 6px 10px; border-radius: var(--radius-sm);
  font-size: 14px;
}
.icon-btn {
  background: none; border: none; color: var(--text2); font-size: 20px; cursor: pointer; padding: 4px 8px;
}

.tab-bar {
  display: flex; background: var(--bg2); border-bottom: 1px solid var(--border); flex-shrink: 0;
  overflow-x: auto; scrollbar-width: none;
}
.tab-bar::-webkit-scrollbar { display: none; }
.tab {
  flex: 1; min-width: 80px; padding: 10px 4px; background: none; border: none;
  color: var(--text2); font-size: 12px; cursor: pointer; border-bottom: 2px solid transparent;
  white-space: nowrap;
}
.tab.active { color: var(--accent2); border-bottom-color: var(--accent); }

#main-content { flex: 1; overflow-y: auto; padding: 16px; }

/* ─── Tab Content ─────────────────────────────────────── */
.tab-content.hidden { display: none; }

/* ─── Summary Cards ───────────────────────────────────── */
.summary-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 20px; }
.card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px; text-align: center;
}
.card-label { font-size: 11px; color: var(--text2); margin-bottom: 4px; }
.card-value { font-size: 15px; font-weight: 700; color: var(--accent2); }
.card.balanced .card-value { color: var(--success); }
.card.unbalanced .card-value { color: var(--danger); }

/* ─── Section title ───────────────────────────────────── */
.section-title { font-size: 13px; font-weight: 600; color: var(--text2); text-transform: uppercase; letter-spacing: 0.5px; margin: 16px 0 8px; }

/* ─── Category List ───────────────────────────────────── */
.category-list { display: flex; flex-direction: column; gap: 6px; }
.category-row { display: flex; align-items: center; gap: 8px; }
.category-row .cat-name { width: 120px; font-size: 13px; }
.category-bar-bg { flex: 1; height: 6px; background: var(--bg3); border-radius: 3px; overflow: hidden; }
.category-bar { height: 100%; background: var(--accent); border-radius: 3px; transition: width 0.3s; }
.category-row .cat-amt { font-size: 13px; width: 70px; text-align: right; font-variant-numeric: tabular-nums; }

/* ─── Expense List ────────────────────────────────────── */
.expense-list { display: flex; flex-direction: column; gap: 8px; }
.expense-item {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px; cursor: pointer;
}
.expense-item:active { opacity: 0.8; }
.exp-thumb { width: 44px; height: 44px; border-radius: 8px; object-fit: cover; background: var(--bg3); flex-shrink: 0; display: flex; align-items: center; justify-content: center; color: var(--text2); font-size: 20px; }
.exp-thumb img { width: 100%; height: 100%; border-radius: 8px; object-fit: cover; }
.exp-info { flex: 1; min-width: 0; }
.exp-creditor { font-weight: 600; font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.exp-meta { font-size: 12px; color: var(--text2); }
.exp-amount { text-align: right; font-weight: 700; font-size: 15px; font-variant-numeric: tabular-nums; flex-shrink: 0; }
.exp-matched { color: var(--success); font-size: 10px; }

/* ─── FAB ─────────────────────────────────────────────── */
.fab-container { position: sticky; top: 0; z-index: 10; display: flex; gap: 8px; justify-content: flex-end; padding-bottom: 8px; }
.fab { border: none; border-radius: 28px; cursor: pointer; font-size: 22px; padding: 10px 20px; display: flex; align-items: center; gap: 6px; }
.fab-main { background: var(--accent); color: white; box-shadow: 0 4px 12px rgba(99,102,241,0.4); }
.fab-secondary { background: var(--bg2); border: 1px solid var(--border); color: var(--text); }

/* ─── Upload progress ─────────────────────────────────── */
.upload-progress {
  display: flex; align-items: center; gap: 12px;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; margin-bottom: 12px;
}
.spinner {
  width: 24px; height: 24px; border: 3px solid var(--border);
  border-top-color: var(--accent); border-radius: 50%;
  animation: spin 0.8s linear infinite; flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Expense Form ────────────────────────────────────── */
.expense-form {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; margin-bottom: 16px;
}
.expense-form h3 { margin-bottom: 14px; font-size: 16px; }
.receipt-preview { width: 100%; max-height: 200px; object-fit: contain; border-radius: var(--radius-sm); margin-bottom: 12px; }
.form-group { margin-bottom: 12px; }
.form-group label { display: block; font-size: 12px; color: var(--text2); margin-bottom: 4px; }
.form-group input, .form-group select {
  width: 100%; padding: 10px 12px; background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text); font-size: 15px;
  -webkit-appearance: none;
}
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--accent); }
.form-row { display: flex; gap: 10px; }
.form-row .form-group { flex: 1; }
.confidence-badge { font-size: 12px; color: var(--text2); margin-bottom: 12px; }
.form-actions { display: flex; gap: 10px; }

/* ─── Buttons ─────────────────────────────────────────── */
.btn-primary {
  flex: 1; padding: 12px; background: var(--accent); color: white;
  border: none; border-radius: var(--radius-sm); font-size: 15px; font-weight: 600; cursor: pointer;
}
.btn-primary:active { opacity: 0.85; }
.btn-secondary {
  flex: 1; padding: 12px; background: var(--bg3); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 15px; cursor: pointer;
}
.btn-full { width: 100%; flex: none; margin-bottom: 10px; }

/* ─── Reconcile ───────────────────────────────────────── */
.reconcile-toolbar { display: flex; gap: 10px; margin-bottom: 14px; align-items: center; }
.upload-label { cursor: pointer; }
.upload-label .btn-secondary { display: inline-block; }
.reconcile-status {
  background: var(--bg2); border-radius: var(--radius); padding: 14px;
  margin-bottom: 14px; font-size: 14px;
}
.reconcile-list { display: flex; flex-direction: column; gap: 8px; }
.cc-item {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px;
}
.cc-item.matched { border-color: var(--success); }
.cc-item-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 8px; }
.cc-desc { font-size: 13px; flex: 1; padding-right: 8px; }
.cc-amount { font-weight: 700; font-size: 15px; flex-shrink: 0; }
.cc-date { font-size: 11px; color: var(--text2); }
.cc-match-row { display: flex; gap: 8px; align-items: center; margin-top: 8px; }
.cc-match-select {
  flex: 1; padding: 6px 8px; background: var(--bg); border: 1px solid var(--border);
  color: var(--text); border-radius: var(--radius-sm); font-size: 13px;
}
.btn-link { padding: 6px 12px; font-size: 12px; }

/* ─── Report ──────────────────────────────────────────── */
.report-info { background: var(--bg2); border-radius: var(--radius); padding: 14px; margin-bottom: 14px; font-size: 13px; color: var(--text2); }
.report-info p { margin-bottom: 6px; }
.report-summary { margin-bottom: 14px; }
.report-status { font-size: 13px; color: var(--text2); text-align: center; padding: 8px; }

/* ─── Toast ───────────────────────────────────────────── */
.toast-container { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); z-index: 9999; display: flex; flex-direction: column; gap: 8px; pointer-events: none; }
.toast {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 10px 18px; font-size: 14px; max-width: 320px; text-align: center;
  animation: slideUp 0.2s ease; pointer-events: auto;
}
.toast.success { border-color: var(--success); color: var(--success); }
.toast.error { border-color: var(--danger); color: var(--danger); }
@keyframes slideUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ─── Utilities ───────────────────────────────────────── */
.hidden { display: none !important; }
.error-msg { color: var(--danger); font-size: 13px; margin-top: 8px; }

/* ─── Safe area bottom padding ───────────────────────── */
#main-content { padding-bottom: max(80px, calc(env(safe-area-inset-bottom) + 16px)); }