:root {
  --color-primary: #007AFF;
  --color-primary-hover: #0051D5;
  --color-primary-soft: #EFF6FF;
  --color-primary-soft-text: #0B3D91;
  --color-primary-ring: rgba(0, 122, 255, 0.18);

  --color-success: #34C759;
  --color-success-hover: #2AA148;
  --color-success-soft: #E8F8EC;
  --color-success-soft-text: #146C2E;

  /* Danger (desaturated red) */
  --color-danger: #FF3B30;
  --color-danger-hover: #D70015;

  /* Top nav */
  --color-nav-bg: #0B3D91;
  --color-nav-bg-strong: #082E6E;
  --color-nav-text: #E7EEFB;
  --color-nav-text-muted: #AFC3EA;

  /* Surfaces */
  --color-page-bg: #F5F8FD;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F2F7FF;
  --color-border: #E3EAF3;
  --color-border-strong: #CBD5E1;

  /* Text */
  --color-text: #1D1D1F;
  --color-text-muted: #6E7685;
  --color-text-subtle: #9AA3B2;

  /* Links */
  --color-link: #007AFF;
  --color-link-hover: #0051D5;

  /* Shadows (soft, blue-tinted) */
  --shadow-sm: 0 1px 2px rgba(15, 42, 90, 0.05);
  --shadow-md: 0 2px 8px rgba(15, 42, 90, 0.08), 0 1px 2px rgba(15, 42, 90, 0.04);
  --shadow-lg: 0 18px 40px rgba(15, 42, 90, 0.22);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 999px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  font: 14px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-page-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--color-link); text-decoration: none; transition: color 120ms ease; }
a:hover { color: var(--color-link-hover); text-decoration: underline; }

/* ─── Top bar / nav ───────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  padding: 0.85rem 1.5rem;
  background: linear-gradient(135deg, var(--color-nav-bg) 0%, var(--color-nav-bg-strong) 100%);
  color: var(--color-nav-text);
  border-bottom: 1px solid var(--color-nav-bg-strong);
  box-shadow: var(--shadow-sm);
}
.topbar a { color: var(--color-nav-text); }
.topbar a:hover { color: #fff; text-decoration: none; }
.topbar .brand { font-weight: 600; font-size: 1.2rem; letter-spacing: -0.01em; }
.topbar .brand a { color: #fff; }
.topbar .nav { display: flex; gap: 0.25rem; flex: 1 1 auto; }
.topbar .nav span { display: inline-flex; gap: 0.25rem; }
.topbar .nav a {
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-md);
  transition: background-color 140ms ease, color 140ms ease;
  font-weight: 500;
}
.topbar .nav a:hover { background: rgba(255, 255, 255, 0.12); }
.topbar .session { display: flex; gap: 0.9rem; align-items: center; font-size: 0.92em; }
.topbar .session .balance {
  background: rgba(255, 255, 255, 0.14);
  color: #DCE8FC;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(220, 232, 252, 0.25);
  font-size: 0.88em;
}
.topbar .session .balance strong { color: #fff; font-weight: 600; }
.topbar .session form.logout-form { display: inline; margin: 0; padding: 0; }
.topbar .session form.logout-form button {
  background: none;
  border: 0;
  padding: 0;
  margin: 0;
  font: inherit;
  color: var(--color-nav-text);
  cursor: pointer;
}
.topbar .session form.logout-form button:hover { color: #fff; text-decoration: underline; }

/* ─── Main layout ─────────────────────────────────────────────── */
.main { padding: 1.5rem; margin: 0 auto; }
.main--wide { max-width: none; }

h1 { font-size: 1.6rem; font-weight: 600; margin: 0.25rem 0 1.25rem; letter-spacing: -0.02em; color: var(--color-text); }
h2 { font-size: 1.1rem; font-weight: 600; margin: 1.5rem 0 0.7rem; letter-spacing: -0.01em; color: var(--color-text); }

/* ─── Forms ───────────────────────────────────────────────────── */
.form-row { margin-bottom: 0.95rem; display: flex; flex-direction: column; gap: 0.35rem; }
.form-row label { font-weight: 500; color: #374151; letter-spacing: -0.005em; }
.form-row input[type=text],
.form-row input[type=password],
.form-row input[type=number],
.form-row input[type=date],
.form-row input[type=file],
.form-row select,
.form-row textarea {
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  font: inherit;
  background: var(--color-surface);
  width: 100%;
  transition: border-color 140ms ease, box-shadow 140ms ease;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-ring);
}
.form-row textarea { min-height: 120px; resize: vertical; }
.form-row .hint { color: var(--color-text-muted); font-size: 0.85em; }

.form-inline { display: flex; gap: 0.6rem; align-items: flex-end; flex-wrap: wrap; margin-bottom: 1rem; }
.form-inline label { display: flex; flex-direction: column; gap: 0.2rem; font-size: 0.85em; }
.form-inline label span { color: var(--color-text-muted); font-weight: 500; }
.form-inline input,
.form-inline select {
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  font: inherit;
  transition: border-color 140ms ease, box-shadow 140ms ease;
}
.form-inline input:focus,
.form-inline select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-ring);
}
.form-inline label.checkbox-inline { flex-direction: row; align-items: center; gap: 0.35rem; padding-bottom: 0.55rem; }
.form-inline label.checkbox-inline input { width: auto; }

/* ─── Buttons ─────────────────────────────────────────────────── */
.btn {
  padding: 0.55rem 1rem;
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: var(--radius-md);
  cursor: pointer;
  font: inherit;
  font-weight: 500;
  letter-spacing: -0.005em;
  transition: background-color 140ms ease, border-color 140ms ease, box-shadow 140ms ease, color 140ms ease, transform 80ms ease;
}
.btn:hover { background: var(--color-surface-alt); border-color: #B7C2D1; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--color-primary-ring);
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: 0 1px 2px rgba(0, 122, 255, 0.25);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #fff;
}
.btn-primary:focus-visible {
  box-shadow: 0 0 0 3px var(--color-primary-ring);
}
.btn-success {
  background: var(--color-success);
  color: #fff;
  border-color: var(--color-success);
  box-shadow: 0 1px 2px rgba(52, 199, 89, 0.22);
}
.btn-success:hover {
  background: var(--color-success-hover);
  border-color: var(--color-success-hover);
  color: #fff;
}
.btn-danger {
  background: var(--color-danger);
  color: #fff;
  border-color: var(--color-danger);
  box-shadow: 0 1px 2px rgba(255, 59, 48, 0.22);
}
.btn-danger:hover {
  background: var(--color-danger-hover);
  border-color: var(--color-danger-hover);
  color: #fff;
}
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.88em; }

/* ─── Tables ──────────────────────────────────────────────────── */
.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.table th, .table td {
  padding: 0.35rem 0.5rem;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: middle;
  font-size: 0.92em;
  line-height: 1.3;
}
.table th {
  background: #EEF3FB;
  font-weight: 600;
  color: #475569;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.76em;
}
.table tr:last-child td { border-bottom: none; }
.table tbody tr:nth-child(even) { background: #FAFCFE; }
.table tbody tr:hover { background: var(--color-primary-soft); }
.table .muted { color: var(--color-text-muted); }

.pagination { display: flex; gap: 0.5rem; align-items: center; margin-top: 0.95rem; flex-wrap: wrap; }
.pagination-pages { display: inline-flex; gap: 0.2rem; align-items: center; flex-wrap: wrap; }
.pagination-pages .btn.pagination-page { min-width: 2rem; padding-left: 0.55rem; padding-right: 0.55rem; }
.pagination-pages .btn.pagination-page-active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.pagination-pages .btn[disabled] { opacity: 0.5; cursor: not-allowed; }
.pagination-ellipsis { padding: 0 0.2rem; color: var(--color-text-muted); user-select: none; }
.pagination-size { display: inline-flex; gap: 0.35rem; align-items: center; margin-left: 0.5rem; }
.pagination-size select { padding: 0.18rem 0.35rem; }
.pagination-range { margin-left: auto; }

/* ─── Badges ──────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 0.18rem 0.65rem;
  border-radius: var(--radius-pill);
  font-size: 0.78em;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  line-height: 1.5;
}
/* Connection type & active state */
.badge-type-smpp  { background: #E0ECFF; color: #0B3D91; border-color: #BFD4FB; }
.badge-type-http  { background: #FFF4D9; color: #8A5A00; border-color: #FCE4A0; }
.badge-active-yes { background: var(--color-success-soft); color: var(--color-success-soft-text); border-color: #B7E8C3; }
.badge-active-no  { background: #FFE5E2; color: #B3261E; border-color: #FBC7C2; }

.badge-status-PENDING     { background: #E0ECFF; color: #0B3D91; border-color: #BFD4FB; }
.badge-status-QUEUED      { background: #FFF4D9; color: #8A5A00; border-color: #FCE4A0; }
.badge-status-STARTED     { background: #DCE9FF; color: #0051D5; border-color: #B6CDF9; }
.badge-status-COMPLETED   { background: var(--color-success-soft); color: var(--color-success-soft-text); border-color: #B7E8C3; }
.badge-status-FAILED      { background: #FFE5E2; color: #B3261E; border-color: #FBC7C2; }
.badge-status-CANCELED    { background: #E8ECF1; color: #475569; border-color: #D0D7E1; }
.badge-status-SENT        { background: #DCE9FF; color: #0051D5; border-color: #B6CDF9; }
.badge-status-DELIVERED   { background: var(--color-success-soft); color: var(--color-success-soft-text); border-color: #B7E8C3; }
.badge-status-UNDELIVERED { background: #FFE5E2; color: #B3261E; border-color: #FBC7C2; }
.badge-status-REJECTED    { background: #FFE8D1; color: #9A4B00; border-color: #FCD3A4; }

.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  vertical-align: middle;
  margin-right: 4px;
  background: #9AA3B2;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.7);
}
.dot-connected    { background: var(--color-success); }
.dot-disconnected { background: var(--color-danger); }
.dot-unknown      { background: #9AA3B2; }

/* ─── Cards / panels ──────────────────────────────────────────── */
.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.35rem;
  margin-bottom: 1.25rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.kv { display: grid; grid-template-columns: max-content 1fr; gap: 0.3rem 0.85rem; }
.kv .k { color: var(--color-text-muted); font-weight: 500; }
.kv .v { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; word-break: break-all; }

/* ─── Login ───────────────────────────────────────────────────── */
.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0B3D91 0%, #007AFF 60%, #4EA3FF 100%);
  color: var(--color-text);
}
.login-card {
  background: var(--color-surface);
  padding: 2.5rem 2.25rem;
  border-radius: var(--radius-lg);
  width: 360px;
  box-shadow: var(--shadow-lg);
}
.login-card h1 { margin: 0 0 0.35rem; color: var(--color-text); font-size: 1.6rem; font-weight: 600; letter-spacing: -0.02em; }
.login-card .login-sub { color: var(--color-text-muted); margin: 0 0 1.5rem; }
.login-card label { display: block; margin-bottom: 0.95rem; }
.login-card label span { display: block; margin-bottom: 0.3rem; font-weight: 500; color: #374151; }
.login-card input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  font: inherit;
  transition: border-color 140ms ease, box-shadow 140ms ease;
}
.login-card input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-ring);
}
.login-card button { width: 100%; margin-top: 0.6rem; padding: 0.65rem 0.9rem; font-size: 0.98em; }

.error-banner {
  padding: 0.6rem 0.85rem;
  background: #FFE5E2;
  border: 1px solid #FBC7C2;
  color: #B3261E;
  border-radius: var(--radius-md);
  margin-bottom: 0.95rem;
  font-size: 0.92em;
}

.info-banner {
  padding: 0.6rem 0.85rem;
  background: var(--color-primary-soft);
  border: 1px solid #BFD4FB;
  color: var(--color-primary-soft-text);
  border-radius: var(--radius-md);
  margin-bottom: 0.95rem;
  font-size: 0.92em;
}

/* ─── Modal ───────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(11, 61, 145, 0.38);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--color-surface);
  padding: 1.4rem 1.5rem;
  border-radius: var(--radius-lg);
  min-width: 360px;
  max-width: 680px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}
.modal h2 { margin-top: 0; }
.modal .actions { display: flex; gap: 0.55rem; justify-content: flex-end; margin-top: 1.25rem; }

/* ─── Utility ─────────────────────────────────────────────────── */
.row { display: flex; gap: 1rem; align-items: flex-start; flex-wrap: wrap; }
.row > * { flex: 1 1 auto; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.muted { color: var(--color-text-muted); }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.feedback-ok  { outline: 2px solid var(--color-success); outline-offset: -2px; }
.feedback-err { outline: 2px solid var(--color-danger); outline-offset: -2px; }
.row-active { background-color: var(--color-primary-soft); }
.small { font-size: 0.78em; }
.detail-list { display: grid; grid-template-columns: max-content 1fr; gap: 0.4rem 1.1rem; margin: 0; }
.detail-list dt { font-weight: 600; color: #374151; }
.detail-list dd { margin: 0; word-break: break-word; }
.msg-body {
  white-space: pre-wrap;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--color-surface-alt);
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}
.clip { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 140px; }

/* Reports tables — column-width controls. The .table layout is auto, so
   `width: 1%` on a th hints "shrink to minimum content width" with
   leftover horizontal space distributed to other columns. `max-width`
   on cells caps growth and clips long content with ellipsis (full value
   stays on the cell's title attribute for hover). */

/* col-id: short UUID-prefix columns (8 chars) — shrink to content. */
.table th.col-id, .table td.col-id { width: 1%; white-space: nowrap; }
.table th.ts-th.col-id { padding-right: 1.6rem; }

/* col-shrink: shrink-to-content for date / status / counter columns
   whose content is well-bounded (timestamps, status badges, attempt
   counts). */
.table th.col-shrink, .table td.col-shrink { width: 1%; white-space: nowrap; }
.table th.ts-th.col-shrink { padding-right: 1.6rem; }

/* col-narrow: cap text columns (sender, username, connection) at the
   header-label width; long values clip+ellipsis with full value on
   hover via the cell's title attribute. */
.table th.col-narrow, .table td.col-narrow {
  max-width: 6em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* col-num: cap numeric columns at "1,000,000"-ish width; bigger values
   clip+ellipsis. Right-aligned via the existing .right utility on the
   cell. */
.table th.col-num, .table td.col-num {
  max-width: 6rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ─── Sortable / filterable tables (tablesort.js) ─────────────── */
.table th.ts-th {
  cursor: pointer;
  user-select: none;
  position: relative;
  padding-right: 2.1rem;
}
.table th.ts-th:hover { background: #E3EBF8; }
.ts-indicator {
  display: inline-block;
  margin-left: 0.25rem;
  font-size: 0.82em;
  color: var(--color-primary);
  letter-spacing: 0;
}
.ts-indicator-active { font-weight: 700; }
.ts-filter-btn {
  position: absolute;
  right: 0.45rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.3rem;
  height: 1.3rem;
  padding: 0;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: #64748b;
  font-size: 0.95em;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease;
}
.ts-filter-btn:hover {
  background: var(--color-surface);
  border-color: var(--color-border-strong);
  color: var(--color-primary);
}
.ts-filter-btn.ts-filter-active {
  background: var(--color-primary-soft);
  border-color: #BFD4FB;
  color: var(--color-primary-soft-text);
}
.ts-popover {
  position: absolute;
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: 0.55rem 0.6rem;
  box-shadow: var(--shadow-md);
  z-index: 200;
  min-width: 220px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.ts-popover-input {
  padding: 0.4rem 0.55rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  font: inherit;
  width: 100%;
}
.ts-popover-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-ring);
}
.ts-popover-actions { display: flex; gap: 0.4rem; justify-content: flex-end; }

/* ─── Table overflow wrapper ──────────────────────────────────── */
.table-wrap {
  overflow-x: auto;
  width: 100%;
}

/* ─── Sender-ID chips (accounts page inline panel) ───────────── */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--color-primary-soft);
  color: var(--color-primary-soft-text);
  border: 1px solid #BFD4FB;
  border-radius: var(--radius-pill);
  padding: 2px 10px;
  font-size: 0.8rem;
  margin: 2px;
  font-weight: 500;
}
.chip button {
  background: none;
  border: none;
  color: var(--color-primary-soft-text);
  cursor: pointer;
  padding: 0 2px;
  font-size: 0.95rem;
  line-height: 1;
}
.chip button:hover { color: var(--color-danger); }

.sender-panel {
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
  padding: 14px 16px;
}
.sender-panel .chip-list { margin-bottom: 8px; min-height: 24px; }
.sender-panel .sender-add { display: flex; gap: 6px; align-items: center; margin-bottom: 8px; }
.sender-panel .sender-add input { padding: 4px 8px; font-size: 0.85rem; }
.sender-panel .sender-allow { font-size: 0.85rem; color: #475569; }

.route-cell {
  display: flex;
  gap: 6px;
  align-items: center;
}
.route-cell select {
  min-width: 180px;
  padding: 4px 8px;
  font-size: 0.85rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}
.route-status { white-space: nowrap; }

/* ─── Credits accordion panel (accounts page) ───────────────── */
.credits-panel {
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
  padding: 14px 16px;
}
.credits-panel .credits-header { margin-bottom: 10px; font-size: 0.95rem; }
.credits-panel .credits-mutate,
.credits-panel .credits-search { margin-bottom: 10px; }
.credits-panel table.table { margin-bottom: 8px; }

/* ─── Per-attempt + per-carrier inline panels (admin reports) ── */
.attempts-panel,
.carrier-stats-panel {
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
  padding: 12px 16px;
}
.carrier-stats-wrap { overflow-x: auto; }
.carrier-stats-table th { white-space: nowrap; }
.totals-row td { border-top: 2px solid var(--color-border-strong); background: var(--color-surface); }