:root {
  --bg:        #f4f6fb;
  --bg2:       #eef0f7;
  --white:     #ffffff;
  --border:    #e2e6f0;
  --border2:   #d0d5e8;
  --text:      #1a1d2e;
  --text2:     #4a5168;
  --muted:     #8b92a9;
  --shadow:    0 2px 12px rgba(0,0,0,.07);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.13);

  --bria:      #16a34a;
  --bria-bg:   #f0fdf4;
  --bria-bd:   #bbf7d0;
  --pbx:       #2563eb;
  --pbx-bg:    #eff6ff;
  --pbx-bd:    #bfdbfe;
  --omega:     #7c3aed;
  --omega-bg:  #f5f3ff;
  --omega-bd:  #ddd6fe;
  --gold:      #d97706;
  --red:       #dc2626;
  --red-bg:    #fef2f2;
}

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

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

/* ── LOGIN ─────────────────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #e8eaf6 0%, #f4f6fb 50%, #e8f5e9 100%);
}

.login-box {
  width: 420px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 48px 40px 40px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.login-logo {
  width: 240px;
  margin: 0 auto 28px;
  display: block;
  /* Invert the silver SVG so it shows dark on white */
  filter: invert(1) hue-rotate(180deg) brightness(.25);
}

.login-title {
  font-size: 12px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 32px;
  font-weight: 600;
}

.login-box input[type=text],
.login-box input[type=password] {
  width: 100%;
  padding: 13px 16px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 14px;
  margin-bottom: 12px;
  outline: none;
  transition: border .2s, box-shadow .2s;
}
.login-box input:focus {
  border-color: var(--pbx);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}

.login-box button {
  width: 100%;
  padding: 13px;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  border: none;
  border-radius: 10px;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1px;
  cursor: pointer;
  transition: opacity .2s, transform .1s;
  margin-top: 4px;
}
.login-box button:hover  { opacity: .9; }
.login-box button:active { transform: scale(.99); }

.login-error {
  background: var(--red-bg);
  border: 1px solid #fecaca;
  color: var(--red);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 16px;
}

/* ── APP LAYOUT ────────────────────────────────────────────────── */
.app { display: flex; height: 100vh; overflow: hidden; }

.sidebar {
  width: 240px;
  background: var(--white);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  box-shadow: 2px 0 8px rgba(0,0,0,.04);
}

.sidebar-logo {
  padding: 22px 20px 18px;
  border-bottom: 1px solid var(--border);
}
.sidebar-logo img {
  width: 100%;
  filter: invert(1) hue-rotate(180deg) brightness(.25);
}

.sidebar-nav  { flex: 1; padding: 12px 0; overflow-y: auto; }

.nav-section {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  padding: 14px 18px 5px;
  font-weight: 600;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  font-size: 14px;
  color: var(--text2);
  cursor: pointer;
  border-left: 3px solid transparent;
  border-radius: 0 8px 8px 0;
  margin: 1px 8px 1px 0;
  transition: all .15s;
  text-decoration: none;
  font-weight: 500;
}
.nav-item:hover  { background: var(--bg); color: var(--text); }
.nav-item.active { background: var(--pbx-bg); color: var(--pbx); border-left-color: var(--pbx); font-weight: 600; }
.nav-item.active .dot-bria  ~ * { color: var(--bria); }

.dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.dot-dash  { background: #94a3b8; }
.dot-bria  { background: var(--bria); }
.dot-pbx   { background: var(--pbx); }
.dot-omega { background: var(--omega); }
.dot-fees  { background: var(--gold); }

.nav-count {
  margin-left: auto;
  font-size: 11px;
  background: var(--bg2);
  color: var(--muted);
  padding: 1px 7px;
  border-radius: 20px;
  font-weight: 600;
}

.sidebar-footer {
  padding: 16px 18px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--muted);
}
.sidebar-footer strong { color: var(--text2); }
.sidebar-footer a { color: var(--pbx); text-decoration: none; font-weight: 500; }
.sidebar-footer a:hover { text-decoration: underline; }

/* ── TOPBAR ────────────────────────────────────────────────────── */
.main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

.topbar {
  height: 62px;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 28px;
  gap: 14px;
  flex-shrink: 0;
  box-shadow: 0 1px 4px rgba(0,0,0,.04);
}

.topbar-title    { font-size: 18px; font-weight: 700; color: var(--text); }
.topbar-subtitle { font-size: 12px; color: var(--muted); margin-top: 1px; }

.search-bar {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 7px 13px;
  gap: 8px;
  transition: border .2s;
}
.search-bar:focus-within { border-color: var(--pbx); }
.search-bar input {
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 13px;
  width: 200px;
}
.search-bar svg { color: var(--muted); flex-shrink: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all .15s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--pbx);
  color: #fff;
}
.btn-primary:hover { background: #1d4ed8; }
.btn-success {
  background: var(--bria);
  color: #fff;
}
.btn-success:hover { background: #15803d; }
.btn-danger {
  background: var(--red);
  color: #fff;
}
.btn-danger:hover { background: #b91c1c; }
.btn-ghost {
  background: var(--bg);
  color: var(--text2);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover { background: var(--bg2); }

/* ── CONTENT ───────────────────────────────────────────────────── */
.content { flex: 1; overflow-y: auto; padding: 28px; }

/* ── KPI CARDS ─────────────────────────────────────────────────── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 22px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.kpi-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent-color, #2563eb);
  border-radius: 14px 14px 0 0;
}
.kpi-label { font-size: 11px; font-weight: 700; letter-spacing: 1.2px; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.kpi-value { font-size: 30px; font-weight: 800; color: var(--text); line-height: 1; }
.kpi-sub   { font-size: 12px; color: var(--muted); margin-top: 5px; font-weight: 500; }

/* ── TABLE CARD ────────────────────────────────────────────────── */
.table-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 22px;
  box-shadow: var(--shadow);
}
.table-head {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
}
.table-head h3 { font-size: 15px; font-weight: 700; color: var(--text); flex: 1; }

.badge {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: .3px;
}
.badge-bria  { background: var(--bria-bg);  color: var(--bria);  border: 1px solid var(--bria-bd); }
.badge-pbx   { background: var(--pbx-bg);   color: var(--pbx);   border: 1px solid var(--pbx-bd); }
.badge-omega { background: var(--omega-bg); color: var(--omega); border: 1px solid var(--omega-bd); }
.badge-fees  { background: #fffbeb; color: var(--gold); border: 1px solid #fde68a; }

table { width: 100%; border-collapse: collapse; }
thead th {
  background: var(--bg);
  padding: 10px 16px;
  text-align: left;
  font-size: 11px;
  letter-spacing: .8px;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
}
tbody tr {
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background .12s;
}
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: #f8f9ff; }
tbody td { padding: 12px 16px; font-size: 13px; color: var(--text2); vertical-align: middle; }

.client-name { font-weight: 700; color: var(--text); font-size: 14px; }
.mono { font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace; font-size: 12px; color: var(--text2); }
.fee-val { font-weight: 700; color: var(--text); font-size: 14px; }

.op-tag {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .4px;
}
.op-bria  { background: var(--bria-bg);  color: var(--bria); }
.op-pbx   { background: var(--pbx-bg);   color: var(--pbx); }
.op-omega { background: var(--omega-bg); color: var(--omega); }

tfoot tr td {
  background: var(--bg);
  font-weight: 700;
  color: var(--text);
  font-size: 13px;
  padding: 12px 16px;
  border-top: 2px solid var(--border);
}

/* ── FEES PAGE ─────────────────────────────────────────────────── */
.fees-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }

.fees-section {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.fees-section-header {
  padding: 14px 18px;
  font-weight: 700;
  font-size: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.fees-bria-hdr  { background: var(--bria-bg);  color: var(--bria);  border-bottom: 1px solid var(--bria-bd); }
.fees-pbx-hdr   { background: var(--pbx-bg);   color: var(--pbx);   border-bottom: 1px solid var(--pbx-bd); }
.fees-omega-hdr { background: var(--omega-bg); color: var(--omega); border-bottom: 1px solid var(--omega-bd); }

.fees-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 18px;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
  transition: background .1s;
}
.fees-row:last-child { border-bottom: none; }
.fees-row:hover { background: var(--bg); }
.fees-name { color: var(--text2); font-weight: 500; }
.fees-amt  { font-weight: 700; color: var(--text); font-family: monospace; }

.fees-subtotal {
  display: flex;
  justify-content: space-between;
  padding: 12px 18px;
  background: var(--bg);
  font-weight: 800;
  font-size: 13px;
  border-top: 2px solid var(--border);
  color: var(--text);
}

.grand-total-card {
  background: linear-gradient(135deg, var(--pbx) 0%, #1d4ed8 100%);
  border-radius: 14px;
  padding: 26px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  box-shadow: 0 8px 24px rgba(37,99,235,.25);
}
.grand-total-label { font-size: 13px; letter-spacing: 1.5px; text-transform: uppercase; color: rgba(255,255,255,.7); font-weight: 600; }
.grand-total-sub   { font-size: 12px; color: rgba(255,255,255,.5); margin-top: 4px; }
.grand-total-value { font-size: 40px; font-weight: 900; color: #fff; }

/* ── MODAL ─────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,20,40,.45);
  backdrop-filter: blur(3px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.open {
  display: flex;
  animation: fadeIn .15s ease;
}
@keyframes fadeIn { from { opacity:0 } to { opacity:1 } }

.modal {
  background: var(--white);
  border-radius: 18px;
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  animation: slideUp .18s ease;
}
@keyframes slideUp { from { transform:translateY(20px);opacity:0 } to { transform:translateY(0);opacity:1 } }

.modal-header {
  padding: 22px 26px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.modal-header h2  { font-size: 18px; font-weight: 700; color: var(--text); flex: 1; }
.modal-close {
  width: 32px; height: 32px;
  border-radius: 8px;
  border: none;
  background: var(--bg);
  color: var(--muted);
  cursor: pointer;
  font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  transition: all .15s;
  line-height: 1;
}
.modal-close:hover { background: var(--bg2); color: var(--text); }

.modal-body { padding: 24px 26px; overflow-y: auto; flex: 1; }
.modal-footer {
  padding: 16px 26px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  align-items: center;
  flex-shrink: 0;
  background: var(--bg);
}
.modal-footer .spacer { flex: 1; }

/* Form fields */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.form-grid .full { grid-column: span 2; }

.op-fields { margin-bottom: 4px; }

.form-group label,
.field label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--muted);
  margin-bottom: 5px;
}
.form-group input,
.form-group select,
.form-group textarea,
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 10px 13px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 9px;
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border .2s, box-shadow .2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus,
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--pbx);
  box-shadow: 0 0 0 3px rgba(37,99,235,.08);
  background: var(--white);
}
.form-group textarea,
.field textarea { resize: vertical; min-height: 70px; }

.section-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  padding: 14px 0 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 14px;
  grid-column: span 2;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background: var(--text);
  color: #fff;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  z-index: 2000;
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity .2s, transform .2s;
}
.toast.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.toast.success { background: var(--bria); }
.toast.error   { background: var(--red); }

/* ── EXTENSIONS TABLE IN MODAL ─────────────────────────────────── */
.ext-section {
  margin-top: 20px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
.ext-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.ext-section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--muted);
}
.ext-count {
  font-weight: 600;
  color: var(--text2);
  margin-left: 5px;
}
.btn-sm { padding: 5px 11px; font-size: 12px; border-radius: 7px; }

.ext-table-wrap {
  border: 1.5px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.ext-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.ext-table thead th {
  background: var(--bg);
  padding: 7px 10px;
  font-size: 10px;
  letter-spacing: .8px;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.ext-table thead th:nth-child(1) { width: 110px; }
.ext-table thead th:nth-child(2) { width: 140px; }
.ext-table thead th:nth-child(3) { width: 160px; }
.ext-table thead th:nth-child(5) { width: 36px; }

.ext-table tbody tr { border-bottom: 1px solid var(--border); }
.ext-table tbody tr:last-child { border-bottom: none; }
.ext-table tbody tr:hover { background: #f8f9ff; }
.ext-table tbody td { padding: 2px 4px; vertical-align: middle; }
.ext-table tbody td:last-child { padding: 2px 6px; }

.ext-input {
  width: 100%;
  border: none;
  background: transparent;
  padding: 6px 8px;
  font-size: 12px;
  color: var(--text);
  font-family: inherit;
  outline: none;
  border-radius: 6px;
  transition: background .12s;
}
.ext-input:focus { background: var(--pbx-bg); }
.ext-mono { font-family: 'SF Mono','Fira Code','Courier New',monospace; }

.ext-del-btn {
  width: 26px; height: 26px;
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  border-radius: 6px;
  font-size: 17px;
  line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: all .12s;
}
.ext-del-btn:hover { background: var(--red-bg); color: var(--red); }

.ext-empty {
  text-align: center;
  padding: 16px;
  color: var(--muted);
  font-size: 12px;
  font-style: italic;
}
.ext-loading::before {
  content: '⟳ ';
  animation: spin 1s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d0d5e8; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #b0b8d0; }