:root {
  --bg: #f1f5f9;
  --card: #ffffff;
  --sidebar: #0f172a;
  --sidebar2: #1e293b;
  --pri: #3b82f6;
  --pri-d: #2563eb;
  --suc: #22c55e;
  --wrn: #f59e0b;
  --dng: #ef4444;
  --acc: #8b5cf6;
  --tx1: #1e293b;
  --tx2: #64748b;
  --tx3: #94a3b8;
  --border: #e2e8f0;
  --lab: #8b5cf6;
  --clinic: #3b82f6;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; background: var(--bg); color: var(--tx1); }
a { color: var(--pri); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Login */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #1e293b 0%, #3b82f6 100%);
  padding: 20px;
}
.login-card {
  background: #fff; border-radius: 16px; padding: 36px 32px; width: 100%; max-width: 420px;
  box-shadow: 0 20px 50px rgba(0,0,0,.25);
}
.login-card h1 { margin: 0; color: var(--pri); font-size: 2rem; }
.login-card .sub { color: var(--tx2); margin: 4px 0 20px; font-size: .9rem; }
.login-card label { display: block; font-weight: 600; font-size: .85rem; margin: 10px 0 4px; }
.login-card input {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 1rem;
}
.login-card button {
  width: 100%; margin-top: 18px; padding: 12px; border: 0; border-radius: 8px;
  background: var(--pri); color: #fff; font-weight: 700; font-size: 1rem; cursor: pointer;
}
.login-card button:hover { background: var(--pri-d); }
.demo-box { margin-top: 16px; background: #f8fafc; border-radius: 8px; padding: 10px 12px; font-size: .8rem; color: var(--tx2); }

/* Layout */
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: 250px; background: var(--sidebar); color: #fff; flex-shrink: 0;
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.sidebar .brand { padding: 18px 16px; border-bottom: 1px solid rgba(255,255,255,.08); }
.sidebar .brand .t { font-weight: 800; font-size: 1.05rem; }
.sidebar .brand .v { font-size: .72rem; color: var(--tx3); margin-top: 2px; }
.nav-sec { padding: 12px 14px 4px; font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; color: var(--tx3); }
.nav a {
  display: block; padding: 9px 16px; color: #cbd5e1; font-size: .9rem; border-left: 3px solid transparent;
}
.nav a:hover, .nav a.active { background: var(--sidebar2); color: #fff; text-decoration: none; border-left-color: var(--pri); }
.nav a.lab-link:hover, .nav a.lab-link.active { border-left-color: var(--lab); }
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  background: #fff; border-bottom: 1px solid var(--border); padding: 12px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.topbar .user { font-size: .9rem; color: var(--tx2); }
.content { padding: 18px 20px 40px; }

/* UI */
.page-title { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.page-title h2 { margin: 0; font-size: 1.35rem; }
.btn {
  display: inline-flex; align-items: center; gap: 6px; border: 0; border-radius: 8px;
  padding: 8px 14px; font-weight: 600; font-size: .88rem; cursor: pointer; color: #fff; background: var(--pri);
}
.btn:hover { filter: brightness(.95); text-decoration: none; color: #fff; }
.btn-suc { background: var(--suc); }
.btn-wrn { background: var(--wrn); }
.btn-dng { background: var(--dng); }
.btn-acc { background: var(--acc); }
.btn-outline { background: #fff; color: var(--tx1); border: 1px solid var(--border); }
.btn-sm { padding: 5px 10px; font-size: .8rem; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 18px; }
.card-stat {
  background: #fff; border-radius: 12px; padding: 16px; border: 1px solid var(--border);
}
.card-stat .lbl { color: var(--tx2); font-size: .8rem; font-weight: 600; }
.card-stat .val { font-size: 1.4rem; font-weight: 800; margin-top: 4px; }
.card {
  background: #fff; border-radius: 12px; border: 1px solid var(--border); padding: 16px; margin-bottom: 16px;
}
.card h3 { margin: 0 0 12px; font-size: 1rem; }

table.data { width: 100%; border-collapse: collapse; font-size: .88rem; background: #fff; }
table.data th, table.data td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; }
table.data th { background: #f8fafc; color: var(--tx2); font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; }
table.data tr:hover td { background: #f8fafc; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: .75rem; font-weight: 700; }
.badge-ok { background: #dcfce7; color: #166534; }
.badge-pend { background: #fef3c7; color: #92400e; }
.badge-dng { background: #fee2e2; color: #991b1b; }

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.form-group { margin-bottom: 10px; }
.form-group label { display: block; font-weight: 600; font-size: .82rem; margin-bottom: 4px; color: var(--tx2); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 9px 11px; border: 1px solid var(--border); border-radius: 8px; font-size: .92rem; background: #fff;
}
.form-group textarea { min-height: 80px; resize: vertical; }
.form-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 14px; flex-wrap: wrap; }

.alert { padding: 12px 14px; border-radius: 8px; margin-bottom: 14px; font-size: .9rem; }
.alert-success { background: #dcfce7; color: #166534; border: 1px solid #86efac; }
.alert-danger { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.alert-info { background: #dbeafe; color: #1e40af; border: 1px solid #93c5fd; }
.alert-warning { background: #fef3c7; color: #92400e; border: 1px solid #fcd34d; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 14px; flex-wrap: wrap; }
.tabs a {
  padding: 8px 14px; color: var(--tx2); border-bottom: 2px solid transparent; font-weight: 600; font-size: .9rem;
}
.tabs a.active { color: var(--pri); border-bottom-color: var(--pri); text-decoration: none; }

/* Invoice print header */
.invoice-sheet { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 0; overflow: hidden; max-width: 860px; margin: 0 auto; }
.inv-header { background: var(--pri); color: #fff; padding: 22px 24px; text-align: center; }
.inv-header.lab { background: var(--lab); }
.inv-header .org-name { font-size: 1.35rem; font-weight: 800; }
.inv-header .org-contact { font-size: .88rem; opacity: .92; margin-top: 4px; }
.inv-header .org-addr { font-size: .8rem; opacity: .85; margin-top: 2px; }
.inv-header .divider { height: 1px; background: rgba(255,255,255,.25); margin: 12px auto; max-width: 80%; }
.inv-header .doc-title { font-size: 1rem; font-weight: 700; letter-spacing: .08em; margin-top: 8px; }
.inv-body { padding: 20px 24px 28px; }
.inv-meta { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; font-size: .92rem; }
.inv-totals { margin-left: auto; width: min(280px, 100%); }
.inv-totals .row { display: flex; justify-content: space-between; padding: 4px 0; }
.inv-totals .total { background: var(--pri); color: #fff; padding: 8px 10px; border-radius: 8px; margin-top: 6px; font-weight: 800; }

.search-bar { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.search-bar input { flex: 1; min-width: 180px; padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; }

.item-row { display: grid; grid-template-columns: 2fr 80px 100px 40px; gap: 8px; margin-bottom: 8px; align-items: center; }
@media (max-width: 700px) {
  .sidebar { display: none; }
  .sidebar.open { display: flex; position: fixed; z-index: 50; width: 80%; max-width: 280px; }
  .item-row { grid-template-columns: 1fr 1fr; }
}
.menu-btn { display: none; background: var(--pri); color: #fff; border: 0; border-radius: 8px; padding: 8px 12px; }
@media (max-width: 700px) { .menu-btn { display: inline-flex; } }

.preview-box { background: #eff6ff; border: 1px dashed #93c5fd; border-radius: 10px; padding: 12px 14px; white-space: pre-line; font-size: .9rem; color: var(--tx1); }
.muted { color: var(--tx2); font-size: .85rem; }
.empty { text-align: center; color: var(--tx2); padding: 40px 10px; }

@media print {
  .sidebar, .topbar, .page-title .btn, .no-print { display: none !important; }
  .content { padding: 0; }
  .invoice-sheet { border: 0; box-shadow: none; }
}

/* ── Dental Chart ── */
.dchart {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 14px 10px;
  margin: 12px 0 16px;
}
.dchart-head { display: flex; flex-wrap: wrap; gap: 8px; align-items: baseline; justify-content: space-between; margin-bottom: 8px; }
.dchart-hint { font-size: .78rem; }
.dchart-legend { display: flex; flex-wrap: wrap; gap: 8px 12px; margin-bottom: 10px; }
.dchart-leg { font-size: .72rem; color: var(--tx2); display: inline-flex; align-items: center; gap: 4px; }
.dchart-leg i { width: 12px; height: 12px; border-radius: 3px; display: inline-block; border: 1px solid rgba(0,0,0,.08); }
.dchart-arch { margin-bottom: 8px; }
.dchart-arch-label { font-size: .75rem; font-weight: 800; letter-spacing: .06em; margin-bottom: 4px; }
.dchart-arch-label.up { color: var(--pri); }
.dchart-arch-label.lo { color: var(--dng); }
.dchart-row { display: flex; flex-wrap: wrap; gap: 10px 16px; justify-content: center; }
.dchart-quad { text-align: center; }
.dchart-quad-label { font-size: .7rem; font-weight: 700; color: var(--tx3); margin-bottom: 4px; }
.dchart-teeth { display: flex; gap: 3px; flex-wrap: wrap; justify-content: center; }
button.dtooth {
  width: 34px; height: 38px; border-radius: 8px; border: 2px solid #cbd5e1;
  font-weight: 800; font-size: .85rem; cursor: pointer; color: #0f172a;
  transition: transform .08s, box-shadow .08s, border-color .08s;
  padding: 0; line-height: 1;
}
button.dtooth:hover { transform: translateY(-1px); box-shadow: 0 2px 6px rgba(0,0,0,.12); }
button.dtooth.selected {
  border-color: #1d4ed8;
  box-shadow: 0 0 0 3px rgba(59,130,246,.35);
  outline: none;
}
.dchart-controls {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--border);
}
.dchart-controls label { font-size: .82rem; font-weight: 600; color: var(--tx2); display: inline-flex; align-items: center; gap: 6px; }
.dchart-controls select { padding: 6px 8px; border-radius: 8px; border: 1px solid var(--border); }
.dchart-selected-label { font-size: .85rem; margin-left: auto; }
.dchart-split { display: grid; grid-template-columns: 1.1fr 1fr; gap: 16px; align-items: start; }
@media (max-width: 900px) {
  .dchart-split { grid-template-columns: 1fr; }
  button.dtooth { width: 30px; height: 34px; font-size: .78rem; }
}
.plan-item-row .dchart { margin-top: 8px; }
.teeth-field-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.teeth-field-row input { flex: 1; min-width: 160px; }

.dchart-selected-box { margin-top: 12px; padding: 10px; background: #f8fafc; border: 1px solid var(--border); border-radius: 10px; }
.dchart-selected-box label { display: block; margin-bottom: 6px; font-size: .85rem; }
.dchart-selected-input {
  width: 100%; padding: 10px 12px; border: 2px solid #3b82f6; border-radius: 8px;
  font-size: 1rem; font-weight: 700; letter-spacing: .02em; color: #1e3a8a; background: #eff6ff;
}
.dchart-selected-pills { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 6px; min-height: 24px; }
.tooth-pill {
  display: inline-block; background: #2563eb; color: #fff; font-weight: 800; font-size: .8rem;
  padding: 3px 8px; border-radius: 999px;
}
.dchart-readonly .dtooth { cursor: default; }
.dchart-readonly .dtooth:hover { transform: none; box-shadow: none; }

/* Tooth selection — strong visual + selected field */
button.dtooth {
  width: 36px !important;
  height: 40px !important;
  border-radius: 8px !important;
  border: 2px solid #94a3b8 !important;
  font-weight: 800 !important;
  font-size: 0.9rem !important;
  cursor: pointer !important;
  color: #0f172a !important;
  padding: 0 !important;
  line-height: 1 !important;
  user-select: none !important;
}
button.dtooth.selected {
  border: 3px solid #1d4ed8 !important;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.4) !important;
  transform: scale(1.08);
  outline: none !important;
  z-index: 2;
  position: relative;
}
.dchart-selected-box {
  margin-top: 12px;
  padding: 12px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
}
.dchart-selected-input {
  width: 100% !important;
  padding: 10px 12px !important;
  border: 2px solid #2563eb !important;
  border-radius: 8px !important;
  font-size: 1.05rem !important;
  font-weight: 800 !important;
  color: #1e3a8a !important;
  background: #eff6ff !important;
}
.tooth-pill {
  display: inline-block;
  background: #2563eb;
  color: #fff;
  font-weight: 800;
  font-size: 0.8rem;
  padding: 3px 8px;
  border-radius: 999px;
  margin: 2px;
}
.dchart-selected-pills { margin-top: 8px; min-height: 28px; }