/* ── Reset & base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-primary:    #0f1117;
  --bg-secondary:  #1a1d2e;
  --bg-card:       #1e2130;
  --bg-panel:      #262937;
  --border:        #3a3f5c;
  --text-primary:  #e8e8e8;
  --text-secondary:#9a9eb5;
  --text-muted:    #6b7080;
  --accent:        #ED135B;
  --accent-2:      #F7931D;
  --green:         #2ecc71;
  --blue:          #3498db;
  --red:           #e74c3c;
  --row-a:         #2b2f42;
  --row-b:         #242840;
  --row-hover:     #323754;
  --nav-bg:        #13151f;
  --nav-border:    #2a2d3e;
  --shadow:        0 2px 12px rgba(0,0,0,0.4);
  --shadow-card:   0 4px 24px rgba(0,0,0,0.35);
  --input-bg:      #1e2130;
  --input-border:  #3a3f5c;
  --input-focus:   #ED135B;
  --scrollbar-bg:  #1a1d2e;
  --scrollbar-thumb: #3a3f5c;
}

html { height: 100%; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
  transition: background 0.2s, color 0.2s;
}

/* ── Scrollbar ────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--scrollbar-bg); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 4px; }

/* ── Nav ──────────────────────────────────────────────────────────────────── */
.navbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0 1.5rem;
  height: 56px;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
  flex-shrink: 0;
}

.nav-brand { display: flex; align-items: center; gap: 0.5rem; color: var(--accent); }
.nav-title { font-size: 1.05rem; font-weight: 700; color: var(--text-primary); text-decoration: none; letter-spacing: -0.3px; }
.nav-title:hover { color: var(--accent); }

.nav-links { display: flex; align-items: center; gap: 0.25rem; margin-left: 1.5rem; flex: 1; }

.nav-link {
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
}
.nav-link:hover { background: var(--bg-panel); color: var(--text-primary); }
.nav-link.active { color: var(--accent); background: rgba(237,19,91,0.1); }
.nav-link-admin { color: var(--accent-2) !important; }
.nav-link-admin.active { background: rgba(247,147,29,0.12) !important; }

.nav-right { display: flex; align-items: center; gap: 0.75rem; }
.nav-user { font-size: 0.85rem; color: var(--text-secondary); }
.nav-user-link { text-decoration: none; }
.nav-user-link:hover { color: var(--text-primary); text-decoration: underline; }

/* ── Theme toggle ─────────────────────────────────────────────────────────── */
.theme-toggle {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0.3rem 0.6rem;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  transition: background 0.15s;
}
.theme-toggle:hover { background: var(--bg-card); color: var(--text-primary); }
[data-theme="dark"] .icon-sun  { display: none; }
[data-theme="dark"] .icon-moon { display: inline; }
[data-theme="light"] .icon-sun  { display: inline; }
[data-theme="light"] .icon-moon { display: none; }

/* ── Main layout ──────────────────────────────────────────────────────────── */
.main-content { flex: 1; padding: 1.5rem 2rem; max-width: 1600px; width: 100%; margin: 0 auto; }

.footer {
  padding: 0.75rem 2rem;
  border-top: 1px solid var(--nav-border);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  background: var(--nav-bg);
}

/* ── Page header ──────────────────────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.page-title  { font-size: 1.4rem; font-weight: 700; letter-spacing: -0.3px; }
.page-subtitle { color: var(--text-secondary); font-size: 0.85rem; margin-top: 0.2rem; }
.page-actions { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }

.data-badge {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0.25rem 0.75rem;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* ── Stat cards ───────────────────────────────────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.25rem 1rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  box-shadow: var(--shadow-card);
  transition: transform 0.15s;
}
.stat-card:hover { transform: translateY(-1px); }

.stat-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.stat-blue  .stat-icon { background: rgba(52,152,219,0.15); color: var(--blue); }
.stat-green .stat-icon { background: rgba(46,204,113,0.15); color: var(--green); }
.stat-orange .stat-icon { background: rgba(247,147,29,0.15); color: var(--accent-2); }

.stat-label { font-size: 0.78rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; }
.stat-value { font-size: 1.55rem; font-weight: 700; line-height: 1.2; margin: 0.25rem 0 0.1rem; }
.stat-sub   { font-size: 0.78rem; color: var(--text-muted); }

/* ── Quick links ──────────────────────────────────────────────────────────── */
.quick-links { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1rem; }

.quick-link-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  text-decoration: none;
  color: var(--text-primary);
  box-shadow: var(--shadow-card);
  transition: border-color 0.15s, transform 0.15s;
}
.quick-link-card:hover { border-color: var(--accent); transform: translateY(-1px); }
.ql-icon { color: var(--accent); flex-shrink: 0; }
.ql-title { font-weight: 600; font-size: 1rem; }
.ql-desc  { font-size: 0.82rem; color: var(--text-secondary); margin-top: 0.15rem; }
.ql-arrow { margin-left: auto; color: var(--text-muted); font-size: 1.2rem; }

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 1rem;
  border-radius: 7px;
  border: 1px solid transparent;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
  white-space: nowrap;
  font-family: inherit;
}
.btn:active { opacity: 0.85; }
.btn-primary  { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover  { background: #c9104f; border-color: #c9104f; }
.btn-warning  { background: var(--accent-2); color: #fff; border-color: var(--accent-2); }
.btn-warning:hover  { background: #d97c12; border-color: #d97c12; }
.btn-outline  { background: transparent; color: var(--text-primary); border-color: var(--border); }
.btn-outline:hover  { background: var(--bg-panel); }
.btn-ghost    { background: transparent; color: var(--text-secondary); border-color: transparent; }
.btn-ghost:hover    { color: var(--text-primary); background: var(--bg-panel); }
.btn-danger   { background: var(--red); color: #fff; border-color: var(--red); }
.btn-danger:hover   { opacity: 0.85; }
.btn-sm  { padding: 0.3rem 0.75rem; font-size: 0.82rem; }
.btn-xs  { padding: 0.2rem 0.55rem; font-size: 0.78rem; border-radius: 5px; }
.btn-full { width: 100%; justify-content: center; }

/* ── Toolbar / date range ─────────────────────────────────────────────────── */
.toolbar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.65rem 1rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.toolbar-label { font-size: 0.8rem; color: var(--text-secondary); font-weight: 500; }
.date-range-bar { display: flex; align-items: center; gap: 0.4rem; flex-wrap: wrap; }
.date-input {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 6px;
  padding: 0.25rem 0.5rem;
  color: var(--text-primary);
  font-size: 0.82rem;
  font-family: inherit;
}
.date-input:focus { outline: none; border-color: var(--input-focus); }
.date-sep { color: var(--text-muted); font-size: 0.9rem; }

/* ── Filter bar ───────────────────────────────────────────────────────────── */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.5rem;
  align-items: center;
}
.filter-input {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 6px;
  padding: 0.3rem 0.65rem;
  color: var(--text-primary);
  font-size: 0.82rem;
  font-family: inherit;
  min-width: 120px;
}
.filter-input:focus { outline: none; border-color: var(--input-focus); }

/* ── Table ────────────────────────────────────────────────────────────────── */
.table-wrap {
  overflow-x: auto;
  border-radius: 10px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}

.data-table thead {
  background: var(--bg-panel);
  position: sticky;
  top: 0;
  z-index: 5;
}

.data-table th {
  padding: 0.65rem 0.75rem;
  text-align: left;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
  user-select: none;
}
.data-table th.num { text-align: right; }

.data-table th.sortable { cursor: pointer; }
.data-table th.sortable:hover { color: var(--text-primary); }
.data-table th.sort-asc::after  { content: ' ↑'; color: var(--accent); }
.data-table th.sort-desc::after { content: ' ↓'; color: var(--accent); }

.data-table tbody tr:nth-child(odd)  { background: var(--row-a); }
.data-table tbody tr:nth-child(even) { background: var(--row-b); }
.data-table tbody tr:hover { background: var(--row-hover); }
.data-table tbody tr.row-discounted { background: rgba(247,147,29,0.08) !important; }
.data-table tbody tr.row-discounted:hover { background: rgba(247,147,29,0.16) !important; }
.data-table tbody tr.row-discounted td:first-child { border-left: 3px solid var(--accent-2); }

.data-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
  white-space: nowrap;
}
.data-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
.data-table td.disc-cell { font-size: 0.8rem; color: var(--text-secondary); }
.data-table td.period-cell { font-size: 0.78rem; color: var(--text-muted); }

.data-table tfoot tr { background: var(--bg-panel) !important; }
.data-table tfoot td {
  padding: 0.6rem 0.75rem;
  border-top: 2px solid var(--border);
  font-size: 0.82rem;
  white-space: nowrap;
}

/* ── Customer stat strip ──────────────────────────────────────────────────── */
.cust-stat-strip {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 0.75rem;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.cstat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.1rem;
  min-width: 90px;
  flex: 1;
  text-align: center;
  transition: background 0.15s;
}
.cstat-card:hover { background: var(--bg-panel); }

.cstat-label {
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  white-space: nowrap;
}

.cstat-value {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  margin-top: 0.15rem;
  font-variant-numeric: tabular-nums;
}

.cstat-divider {
  width: 1px;
  height: 38px;
  background: var(--border);
  flex-shrink: 0;
}

.cstat-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot-internet { background: #5aade0; }
.dot-custom   { background: var(--accent-2); }
.dot-voice    { background: #4dd68a; }

.cstat-blue    .cstat-value { color: var(--blue); }
.cstat-internet .cstat-value { color: #5aade0; }
.cstat-custom  .cstat-value { color: var(--accent-2); }
.cstat-voice   .cstat-value { color: #4dd68a; }
.cstat-green   .cstat-value { color: var(--green); }
.cstat-orange  .cstat-value { color: var(--accent-2); }

.cstat-filter-label {
  font-size: 0.75rem;
  color: var(--accent);
  padding: 0 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  display: none;
}

/* ── Table controls bar (column toggle + per-page) ───────────────────────── */
.table-controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.tc-left  { display: flex; align-items: center; gap: 0.5rem; }
.tc-right { display: flex; align-items: center; gap: 0.5rem; }
.tc-label { font-size: 0.8rem; color: var(--text-secondary); }

.perpage-select {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 6px;
  padding: 0.25rem 0.5rem;
  color: var(--text-primary);
  font-size: 0.82rem;
  font-family: inherit;
  cursor: pointer;
}
.perpage-select:focus { outline: none; border-color: var(--input-focus); }

/* ── Column toggle dropdown ───────────────────────────────────────────────── */
.col-toggle-wrap { position: relative; }

.col-toggle-panel {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem;
  box-shadow: var(--shadow-card);
  z-index: 50;
  min-width: 160px;
  max-height: 320px;
  overflow-y: auto;
}
.col-toggle-panel.open { display: block; }

.col-toggle-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.3rem 0.4rem;
  border-radius: 5px;
  font-size: 0.82rem;
  cursor: pointer;
  white-space: nowrap;
  color: var(--text-primary);
  user-select: none;
}
.col-toggle-item:hover { background: var(--bg-panel); }
.col-toggle-item input[type="checkbox"] { accent-color: var(--accent); cursor: pointer; }

/* ── Pagination bar ───────────────────────────────────────────────────────── */
.pagination-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 0.6rem 0;
  flex-wrap: wrap;
}
.pg-info {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-right: auto;
}
.pg-btns { display: flex; align-items: center; gap: 0.2rem; flex-wrap: wrap; }
.pg-btn {
  min-width: 32px;
  height: 30px;
  padding: 0 0.45rem;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.82rem;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
}
.pg-btn:hover:not(:disabled) { background: var(--bg-panel); border-color: var(--accent); color: var(--accent); }
.pg-btn:disabled { opacity: 0.35; cursor: default; }
.pg-btn.pg-active { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.pg-ellipsis { font-size: 0.82rem; color: var(--text-muted); padding: 0 0.2rem; }

/* ── Badges ───────────────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 20px;
  font-size: 0.73rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-transform: capitalize;
}

.badge-type-internet { background: rgba(52,152,219,0.2); color: #5aade0; }
.badge-type-custom   { background: rgba(247,147,29,0.2); color: var(--accent-2); }
.badge-type-voice    { background: rgba(46,204,113,0.2); color: #4dd68a; }

.badge-status-active   { background: rgba(46,204,113,0.15); color: var(--green); }
.badge-status-new      { background: rgba(52,152,219,0.15); color: var(--blue); }
.badge-status-lead     { background: rgba(52,152,219,0.15); color: var(--blue); }
.badge-status-disabled { background: rgba(231,76,60,0.15); color: var(--red); }
.badge-status-inactive { background: rgba(231,76,60,0.15); color: var(--red); }

.badge-admin { background: rgba(237,19,91,0.15); color: var(--accent); }
.badge-user  { background: var(--bg-panel); color: var(--text-secondary); }

/* ── Alerts ───────────────────────────────────────────────────────────────── */
.alert {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.88rem;
  border: 1px solid transparent;
}
.alert-error   { background: rgba(231,76,60,0.12); border-color: rgba(231,76,60,0.35); color: #e88; }
.alert-success { background: rgba(46,204,113,0.1); border-color: rgba(46,204,113,0.35); color: #6dde9a; }

/* ── Forms ────────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 1rem; }
.form-label { display: block; font-size: 0.84rem; color: var(--text-secondary); margin-bottom: 0.35rem; font-weight: 500; }
.form-input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 7px;
  padding: 0.5rem 0.75rem;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color 0.15s;
}
.form-input:focus { outline: none; border-color: var(--input-focus); }
.form-check { display: flex; align-items: center; gap: 0.5rem; }
.form-check input[type="checkbox"] { width: auto; accent-color: var(--accent); }

/* ── Login page ───────────────────────────────────────────────────────────── */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg-primary); }
.login-wrap { width: 100%; max-width: 400px; padding: 1rem; }
.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-card);
}
.login-brand { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.75rem; justify-content: center; }
.login-title { font-size: 1.3rem; font-weight: 700; }
.login-form .btn-full { margin-top: 0.5rem; padding: 0.65rem; font-size: 0.95rem; }

/* ── Card ─────────────────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.card-header {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: 0.9rem;
  background: var(--bg-panel);
}

/* ── Admin ────────────────────────────────────────────────────────────────── */
.admin-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; }
.admin-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  text-decoration: none;
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
  box-shadow: var(--shadow-card);
  transition: border-color 0.15s, transform 0.15s;
}
.admin-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.admin-card-icon { color: var(--accent); }
.admin-card-title { font-weight: 600; font-size: 1rem; }
.admin-card-desc { font-size: 0.82rem; color: var(--text-secondary); }

.admin-two-col { display: grid; grid-template-columns: 1fr 340px; gap: 1.5rem; align-items: start; }
.admin-form { padding: 1rem; }

/* ── Error page ───────────────────────────────────────────────────────────── */
.error-page { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 50vh; gap: 1rem; text-align: center; }
.error-code { font-size: 5rem; font-weight: 800; color: var(--accent); line-height: 1; }
.error-message { font-size: 1.1rem; color: var(--text-secondary); }

.text-muted { color: var(--text-muted); font-size: 0.82rem; }

/* ── Customer table links ─────────────────────────────────────────────────── */
.cust-link { color: var(--blue); text-decoration: none; font-weight: 500; }
.cust-link:hover { color: var(--accent); text-decoration: underline; }

/* ── Admin password inline form ───────────────────────────────────────────── */
.actions-cell { display: flex; align-items: center; gap: 0.4rem; flex-wrap: wrap; }
.pw-details summary { cursor: pointer; list-style: none; }
.pw-details summary::-webkit-details-marker { display: none; }
.pw-inline-form { display: flex; gap: 0.4rem; align-items: center; margin-top: 0.4rem; flex-wrap: wrap; }
.form-input-sm { padding: 0.25rem 0.5rem; font-size: 0.8rem; height: 28px; width: 160px; }

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .main-content { padding: 1rem; }
  .admin-two-col { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
}
@media (max-width: 600px) {
  .stat-grid { grid-template-columns: 1fr; }
  .page-header { flex-direction: column; }
}