:root {
  --blue: #2f5fed;
  --blue-dark: #1f3fb0;
  --purple: #7c5cff;
  --purple-dark: #5a3fd6;
  --silver: #c9ced9;
  --silver-light: #eef0f5;
  --gray: #4b5160;
  --gray-dark: #2c2f3a;
  --bg: #f2f3f8;
  --surface: #ffffff;
  --text: #21232c;
  --text-muted: #6b7080;
  --border: #dfe2ec;
  --danger: #d43f5a;
  --success: #1f9d6c;
  --warn: #c47f13;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(30, 34, 54, 0.06), 0 4px 16px rgba(30, 34, 54, 0.06);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--blue); }
.hidden { display: none !important; }
.muted { color: var(--text-muted); }
.icon { width: 18px; height: 18px; flex: none; }
.icon-md { width: 22px; height: 22px; }
.icon-lg { width: 30px; height: 30px; }

/* ---------- Auth screen ---------- */
.auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--gray-dark), var(--purple-dark) 55%, var(--blue-dark));
}
.auth-card {
  width: 380px;
  background: var(--surface);
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.auth-card h1 { margin: 0 0 4px; font-size: 22px; }
.auth-tabs { display: flex; gap: 4px; margin: 20px 0 16px; background: var(--silver-light); border-radius: 8px; padding: 4px; }
.auth-tab { flex: 1; border: none; background: transparent; padding: 8px; border-radius: 6px; cursor: pointer; font-weight: 600; color: var(--text-muted); }
.auth-tab.active { background: var(--surface); color: var(--blue); box-shadow: var(--shadow); }
.auth-form { display: flex; flex-direction: column; gap: 12px; }
.auth-form label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; font-weight: 600; color: var(--gray); }

input, select, textarea {
  font: inherit;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  width: 100%;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--blue); outline-offset: 0; border-color: var(--blue); }
textarea { resize: vertical; min-height: 70px; }

.btn {
  font: inherit;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 9px 14px;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}
.btn:hover { border-color: var(--silver); }
.btn-primary { background: linear-gradient(135deg, var(--blue), var(--purple)); color: #fff; border: none; }
.btn-primary:hover { filter: brightness(1.06); }
.btn-danger { background: var(--danger); color: #fff; border: none; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-link { background: none; border: none; color: var(--blue); cursor: pointer; font-weight: 600; padding: 0; }
.btn-block { width: 100%; justify-content: center; }
.form-error { color: var(--danger); font-size: 13px; min-height: 16px; }
.form-success { color: var(--success); font-size: 13px; }

/* ---------- App shell ---------- */
.app-shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 230px;
  background: linear-gradient(180deg, var(--gray-dark), var(--purple-dark) 130%);
  color: #fff;
  display: flex;
  flex-direction: column;
  padding: 20px 14px;
  flex: none;
}
.brand { font-weight: 800; font-size: 17px; padding: 0 10px 20px; letter-spacing: 0.2px; }
.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.82);
  text-decoration: none;
  padding: 10px 10px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 2px;
}
.nav-link .icon { color: rgba(255,255,255,0.7); }
.nav-link:hover { background: rgba(255,255,255,0.08); }
.nav-link.active { background: rgba(255,255,255,0.16); color: #fff; }
.nav-link.active .icon { color: #fff; }
.sidebar-spacer { flex: 1; }
.sidebar-user { border-top: 1px solid rgba(255,255,255,0.14); padding-top: 12px; display: flex; align-items: center; justify-content: space-between; }
.user-name { font-size: 13px; font-weight: 600; }
.sidebar-user .btn-link { color: rgba(255,255,255,0.75); }

.main-column { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.main-content { padding: 28px 32px; flex: 1; }

.impersonation-banner {
  background: var(--stamp, #ab3420);
  color: #fff;
  padding: 8px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  font-weight: 600;
}
.impersonation-banner .btn-sm { background: rgba(255,255,255,0.15); color: #fff; border-color: rgba(255,255,255,0.4); }

/* ---------- Page layout ---------- */
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; gap: 12px; flex-wrap: wrap; }
.page-header h2 { margin: 0; font-size: 21px; display: flex; align-items: center; gap: 10px; }
.page-header h2 .icon { color: var(--purple); }
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-pad { padding: 18px; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }

/* ---------- Dashboard ---------- */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin-bottom: 24px; }
.stat-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); }
.stat-card .stat-label { font-size: 12px; color: var(--text-muted); font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; }
.stat-card .stat-value { font-size: 24px; font-weight: 800; margin-top: 6px; }
.stat-value.positive { color: var(--success); }
.stat-value.negative { color: var(--danger); }

.category-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.category-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.category-card-head { display: flex; align-items: center; gap: 10px; padding: 14px 16px; background: var(--silver-light); border-bottom: 1px solid var(--border); }
.category-card-head .icon-md { color: var(--blue); }
.category-card-head strong { font-size: 14px; }
.category-card-head .cat-total { margin-left: auto; font-weight: 800; font-size: 15px; }
.category-card-body { padding: 8px 0; }
.mini-account-row { display: flex; justify-content: space-between; padding: 8px 16px; font-size: 13px; border-bottom: 1px solid var(--border); text-decoration: none; color: var(--text); }
.mini-account-row:last-child { border-bottom: none; }
.mini-account-row:hover { background: var(--silver-light); }

/* ---------- Tables/lists ---------- */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-muted); padding: 10px 14px; border-bottom: 2px solid var(--border); }
.data-table td { padding: 12px 14px; border-bottom: 1px solid var(--border); font-size: 13.5px; }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr.clickable { cursor: pointer; }
.data-table tr.clickable:hover { background: var(--silver-light); }
.row-actions { display: flex; gap: 6px; justify-content: flex-end; }
.icon-btn { border: none; background: transparent; color: var(--text-muted); cursor: pointer; padding: 4px; border-radius: 6px; display: inline-flex; }
.icon-btn:hover { background: var(--silver-light); color: var(--gray-dark); }

.badge { display: inline-flex; padding: 3px 9px; border-radius: 999px; font-size: 11px; font-weight: 700; text-transform: capitalize; background: var(--silver-light); color: var(--gray); }
.badge-submitted { background: #e7ecff; color: var(--blue-dark); }
.badge-needs_verification { background: #fff3d6; color: var(--warn); }
.badge-counteroffer { background: #f1e5ff; color: var(--purple-dark); }
.badge-approved { background: #e2f7ec; color: var(--success); }
.badge-declined { background: #fde6ea; color: var(--danger); }

.type-pill { display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 999px; background: var(--silver-light); font-size: 12px; font-weight: 700; color: var(--gray-dark); }
.type-pill .icon { width: 14px; height: 14px; }

/* ---------- Forms ---------- */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 16px; }
.form-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.form-grid .full { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field label { font-size: 12.5px; font-weight: 700; color: var(--gray); }
.field-hint { font-size: 11.5px; color: var(--text-muted); }
.section-title { font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.04em; color: var(--purple-dark); margin: 22px 0 10px; padding-top: 14px; border-top: 1px solid var(--border); display: flex; align-items: center; gap: 8px; }
.section-title:first-child { margin-top: 0; border-top: none; padding-top: 0; }

.repeatable-row { display: grid; grid-template-columns: 1fr 1fr auto; gap: 8px; align-items: center; margin-bottom: 8px; }
.repeatable-list { margin-bottom: 6px; }

/* ---------- Modal ---------- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(20,22,32,0.55); display: flex; align-items: flex-start; justify-content: center; padding: 40px 16px; overflow-y: auto; z-index: 50; }
.modal { background: var(--surface); border-radius: 14px; width: 640px; max-width: 100%; box-shadow: 0 20px 60px rgba(0,0,0,0.35); }
.modal-wide { width: 860px; }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; border-bottom: 1px solid var(--border); }
.modal-header h3 { margin: 0; font-size: 17px; }
.modal-body { padding: 22px; max-height: 70vh; overflow-y: auto; }
.modal-footer { padding: 16px 22px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; }

/* ---------- Toasts ---------- */
.toast-root { position: fixed; bottom: 20px; right: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 100; }
.toast { background: var(--gray-dark); color: #fff; padding: 10px 16px; border-radius: 8px; font-size: 13px; box-shadow: var(--shadow); }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }

/* ---------- Document grid ---------- */
.doc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; margin-top: 10px; }
.doc-slot { border: 1.5px dashed var(--border); border-radius: 10px; padding: 14px 10px; text-align: center; min-height: 100px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; font-size: 12px; }
.doc-slot.filled { border-style: solid; background: var(--silver-light); }
.doc-slot .icon { color: var(--purple); }
.doc-slot-name { font-weight: 700; word-break: break-word; }
.doc-slot-actions { display: flex; gap: 6px; margin-top: 4px; }

/* ---------- Staging table ---------- */
.staging-table input[type=text], .staging-table input[type=number] { padding: 6px 8px; font-size: 12.5px; }
.staging-table td { vertical-align: middle; }
.excluded-row { opacity: 0.45; }

/* ---------- Support tickets ---------- */
.ticket-thread { display: flex; flex-direction: column; gap: 10px; }
.ticket-msg { padding: 10px 14px; border-radius: 8px; max-width: 80%; font-size: 13.5px; }
.ticket-msg.user { background: var(--silver-light); align-self: flex-start; }
.ticket-msg.admin { background: #e7e4fb; align-self: flex-end; }
.ticket-msg .meta { font-size: 11px; color: var(--text-muted); margin-bottom: 4px; }

/* ---------- Application detail ---------- */
.detail-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 20px; align-items: start; }
.info-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; }
.info-list dt { font-size: 11px; text-transform: uppercase; color: var(--text-muted); font-weight: 700; margin: 0; }
.info-list dd { margin: 2px 0 0; font-size: 13.5px; }
.callout { border-radius: 10px; padding: 14px 16px; font-size: 13px; margin-bottom: 16px; display: flex; gap: 10px; align-items: flex-start; }
.callout-success { background: #e2f7ec; color: #146341; }
.callout-danger { background: #fde6ea; color: #8a1f34; }
.callout .icon { flex: none; margin-top: 1px; }

.print-only { display: none; }
@media print {
  .sidebar, .page-header .toolbar, .modal-footer, .no-print { display: none !important; }
  .print-only { display: block; }
  body, .main-content { background: #fff; }
}

.spinner { width: 20px; height: 20px; border: 3px solid var(--border); border-top-color: var(--blue); border-radius: 50%; display: inline-block; animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 860px) {
  .form-grid, .form-grid.cols-3 { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .app-shell { flex-direction: column; }
  .sidebar { width: auto; flex-direction: row; overflow-x: auto; align-items: center; }
  .sidebar-spacer { display: none; }
}