/* ══════════════════════════════════════════════════════════════
   phantom - voip reseller platform
   kyun.sh inspired dark theme
   ══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Space+Mono:wght@400;700&display=swap');

:root {
  /* colors */
  --bg-dark: #0d1117;
  --bg-darker: #010409;
  --bg-card: #161b22;
  --bg-hover: #21262d;
  
  --border: #21262d;
  --border-light: #30363d;
  --border-active: #484f58;
  
  --text: #e6edf3;
  --text-dim: #7d8590;
  --text-bright: #f0f6fc;
  
  --accent: #58a6ff;
  --accent-dim: rgba(88, 166, 255, 0.1);
  --accent-glow: rgba(88, 166, 255, 0.3);
  
  --danger: #f85149;
  --warning: #d29922;
  --success: #3fb950;
  
  /* typography - readable tech aesthetic (replaces pixel font) */
  --font-mono: 'Space Mono', monospace;
  --font-display: 'JetBrains Mono', monospace;
  /* legacy alias for any remaining refs */
  --font-pixel: var(--font-display);
  
  /* spacing */
  --radius: 0px;
  --radius-lg: 0px;
  
  /* safe area for notched devices (iOS/Android) */
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  
  /* touch target minimum (iOS HIG / Material) */
  --touch-min: 44px;
}

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

html {
  font-size: 13px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-y: scroll;
}

body {
  font-family: var(--font-mono);
  background: var(--bg-dark);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  overflow-y: visible;
}

/* background grid */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(rgba(88, 166, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88, 166, 255, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* selection */
::selection {
  background: var(--accent);
  color: var(--bg-dark);
}

/* scrollbar - blue theme */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-darker);
}

::-webkit-scrollbar-thumb {
  background: #4690e0;
}

::-webkit-scrollbar-thumb:hover {
  background: #58a6ff;
}

/* ══════════════════════════════════════════════════════════════
   layout
   ══════════════════════════════════════════════════════════════ */

.app-container {
  display: flex;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* sidebar */
.sidebar {
  width: 220px;
  background: var(--bg-darker);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 100;
}

.sidebar-header {
  padding: 20px 16px;
  border-bottom: 1px solid var(--border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  color: var(--bg-dark);
}

.logo-text {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  color: var(--text-bright);
  letter-spacing: 1px;
}

/* nav */
.nav-section {
  padding: 16px 12px;
  flex: 1;
  overflow-y: auto;
}

.nav-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-dim);
  padding: 12px 12px 8px;
  font-weight: 600;
  font-family: var(--font-display);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 12px;
  letter-spacing: 0.5px;
  transition: all 0.15s ease;
  margin-bottom: 2px;
  position: relative;
  border-left: 2px solid transparent;
}

.nav-item:hover {
  background: var(--bg-card);
  color: var(--text);
  border-left-color: var(--border-light);
}

.nav-item.active {
  background: var(--accent-dim);
  color: var(--accent);
  border-left-color: var(--accent);
}

.nav-icon {
  width: 16px;
  height: 16px;
  opacity: 0.6;
}

.nav-item:hover .nav-icon,
.nav-item.active .nav-icon {
  opacity: 1;
}

/* sidebar footer */
.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.15s ease;
}

.user-info:hover {
  border-color: var(--border-light);
}

.user-avatar {
  width: 32px;
  height: 32px;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-dim);
}

.user-details {
  flex: 1;
  min-width: 0;
}

.user-name {
  font-size: 12px;
  color: var(--text);
}

.user-credits {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

/* main content */
.main-content {
  flex: 1;
  margin-left: 220px;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* top bar */
.top-bar {
  height: 52px;
  background: var(--bg-darker);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.page-title {
  font-size: 12px;
  font-weight: 400;
  color: var(--text);
  letter-spacing: 1px;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-family: var(--font-display);
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

.status-dot {
  width: 6px;
  height: 6px;
  background: var(--success);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--accent-glow); }
  50% { opacity: 0.6; box-shadow: 0 0 0 4px transparent; }
}

/* content area */
.content {
  padding: 24px;
}

/* ══════════════════════════════════════════════════════════════
   components
   ══════════════════════════════════════════════════════════════ */

/* cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 20px;
  transition: all 0.2s ease;
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.card:hover::before {
  width: 100%;
}

.card:hover {
  border-color: var(--border-light);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-title {
  font-size: 10px;
  font-weight: 600;
  font-family: var(--font-display);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

/* stats grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: all 0.2s ease;
}

.stat-card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, transparent 50%, var(--accent-dim) 50%);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.stat-card:hover::after {
  opacity: 1;
}

.stat-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.stat-label {
  font-size: 11px;
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--text-dim);
  margin-bottom: 8px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stat-value {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-bright);
  font-family: var(--font-display);
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.stat-value.accent {
  color: var(--accent);
  text-shadow: 0 0 20px var(--accent-glow);
}

.stat-change {
  font-size: 10px;
  color: var(--success);
  margin-top: 8px;
  letter-spacing: 0.5px;
}

.stat-change.negative {
  color: var(--danger);
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 11px;
  font-weight: 400;
  font-family: var(--font-mono);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  text-decoration: none;
  letter-spacing: 1px;
  text-transform: uppercase;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.4s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-dark);
  border-color: var(--accent);
}

.btn-primary:hover {
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--border-light);
}

.btn-ghost {
  background: transparent;
  color: var(--text-dim);
  border-color: transparent;
}

.btn-ghost:hover {
  background: var(--bg-card);
  color: var(--text);
}

.btn-danger {
  background: var(--danger);
  color: white;
  border-color: var(--danger);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 10px;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 12px;
}

/* inputs */
.input-group {
  margin-bottom: 16px;
}

.input-label {
  display: block;
  font-size: 10px;
  color: var(--text-dim);
  margin-bottom: 6px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.input {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-darker);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 12px;
  font-family: var(--font-mono);
  transition: all 0.15s ease;
}

.input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.input::placeholder {
  color: var(--text-dim);
}

.input-mono {
  font-family: var(--font-mono);
}

/* tables */
.table-container {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.table th {
  font-size: 10px;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-weight: 500;
  background: var(--bg-darker);
}

.table td {
  font-size: 12px;
  color: var(--text);
}

.table tr {
  transition: background 0.15s ease;
}

.table tr:hover td {
  background: var(--bg-hover);
}

.table-mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.5px;
}

/* badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 10px;
  font-weight: 600;
  font-family: var(--font-display);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.badge-success {
  background: rgba(63, 185, 80, 0.15);
  color: var(--success);
  border: 1px solid rgba(63, 185, 80, 0.3);
}

.badge-danger {
  background: rgba(248, 81, 73, 0.15);
  color: var(--danger);
  border: 1px solid rgba(248, 81, 73, 0.3);
}

.badge-warning {
  background: rgba(210, 153, 34, 0.15);
  color: var(--warning);
  border: 1px solid rgba(210, 153, 34, 0.3);
}

.badge-default {
  background: var(--bg-hover);
  color: var(--text-dim);
  border: 1px solid var(--border);
}

/* ══════════════════════════════════════════════════════════════
   auth pages
   ══════════════════════════════════════════════════════════════ */

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  background: var(--bg-dark);
  position: relative;
  overflow-x: hidden;
  padding: 40px 24px 80px;
  box-sizing: border-box;
}

.auth-page::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(88, 166, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88, 166, 255, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(40px, 40px); }
}

.auth-bg {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 20%, var(--accent-dim) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(88, 166, 255, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.auth-container {
  width: 100%;
  max-width: 380px;
  padding: 40px;
  position: relative;
  z-index: 1;
}

.auth-header {
  text-align: center;
  margin-bottom: 40px;
}

.auth-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}

.auth-logo-icon {
  width: 48px;
  height: 48px;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
  color: var(--bg-dark);
}

.auth-logo-text {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 500;
  color: var(--text-bright);
  letter-spacing: 1px;
}

.auth-title {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-bright);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.auth-subtitle {
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.5px;
}

.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 32px;
}

.auth-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 12px;
  color: var(--text-dim);
}

.auth-footer a {
  color: var(--accent);
  text-decoration: none;
}

.auth-footer a:hover {
  text-decoration: underline;
}

.auth-divider {
  display: flex;
  align-items: center;
  margin: 24px 0;
  color: var(--text-dim);
  font-size: 11px;
  letter-spacing: 1px;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.auth-divider span {
  padding: 0 16px;
}

/* ══════════════════════════════════════════════════════════════
   dial interface
   ══════════════════════════════════════════════════════════════ */

.dial-container {
  max-width: 480px;
  margin: 0 auto;
}

.dial-input-group {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 24px;
  margin-bottom: 16px;
  transition: all 0.2s ease;
}

.dial-input-group:focus-within {
  border-color: var(--accent);
}

.dial-label {
  font-size: 10px;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 8px;
  display: block;
}

.dial-input {
  width: 100%;
  background: transparent;
  border: none;
  font-size: 22px;
  font-family: var(--font-display);
  color: var(--text-bright);
  text-align: center;
  outline: none;
  letter-spacing: 1px;
}

.dial-input::placeholder {
  color: var(--text-dim);
}

.dial-btn {
  width: 100%;
  padding: 18px;
  font-size: 14px;
  font-family: var(--font-display);
  letter-spacing: 1px;
}

/* ══════════════════════════════════════════════════════════════
   caller id cards
   ══════════════════════════════════════════════════════════════ */

.callerid-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.callerid-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all 0.2s ease;
  cursor: pointer;
}

.callerid-card:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}

.callerid-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.callerid-icon {
  width: 40px;
  height: 40px;
  background: var(--bg-darker);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
}

.callerid-info {
  flex: 1;
  min-width: 0;
}

.callerid-number {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-bright);
  margin-bottom: 4px;
  letter-spacing: 0.5px;
}

.callerid-name {
  font-size: 11px;
  color: var(--text-dim);
}

/* ══════════════════════════════════════════════════════════════
   modal
   ══════════════════════════════════════════════════════════════ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px) scale(0.95);
  transition: transform 0.2s ease;
}

.modal-overlay.active .modal {
  transform: translateY(0) scale(1);
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 1px;
}

.modal-close {
  width: 32px;
  height: 32px;
  background: var(--bg-darker);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.modal-close:hover {
  background: var(--bg-hover);
  color: var(--text);
  border-color: var(--border-light);
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* ══════════════════════════════════════════════════════════════
   utilities
   ══════════════════════════════════════════════════════════════ */

.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.text-muted { color: var(--text-dim); }
.text-accent { color: var(--accent); }
.font-mono { font-family: var(--font-mono); }
.font-pixel { font-family: var(--font-display); }
.font-display { font-family: var(--font-display); }

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

/* ══════════════════════════════════════════════════════════════
   animations
   ══════════════════════════════════════════════════════════════ */

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-10px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 5px var(--accent-glow); }
  50% { box-shadow: 0 0 20px var(--accent-glow); }
}

.fade-in { animation: fadeIn 0.4s ease forwards; }
.slide-in { animation: slideIn 0.4s ease forwards; }

.delay-1 { animation-delay: 0.1s; opacity: 0; }
.delay-2 { animation-delay: 0.2s; opacity: 0; }
.delay-3 { animation-delay: 0.3s; opacity: 0; }
.delay-4 { animation-delay: 0.4s; opacity: 0; }

/* ══════════════════════════════════════════════════════════════
   responsive
   ══════════════════════════════════════════════════════════════ */

/* ══════════════════════════════════════════════════════════════
   sip users
   ══════════════════════════════════════════════════════════════ */

.sip-users-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

.sip-user-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 24px;
  transition: all 0.2s ease;
  position: relative;
}

.sip-user-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.sip-user-card:hover::before {
  width: 100%;
}

.sip-user-card:hover {
  border-color: var(--border-light);
}

.sip-user-card.add-card {
  border-style: dashed;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 220px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 13px;
}

.sip-user-card.add-card:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.sip-user-card.add-card .slots-remaining {
  font-size: 11px;
  color: var(--text-dim);
}

.sip-user-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.sip-user-status {
  width: 8px;
  height: 8px;
  background: var(--text-dim);
}

.sip-user-status.active {
  background: var(--success);
  animation: pulse 2s infinite;
}

.sip-user-name {
  flex: 1;
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font-display);
  color: var(--text-bright);
}

.sip-user-credentials {
  background: var(--bg-darker);
  border: 1px solid var(--border);
  padding: 16px;
  margin-bottom: 16px;
}

.credential-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.credential-row:last-child {
  border-bottom: none;
}

.credential-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  min-width: 80px;
}

.credential-value {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.credential-value.password-hidden {
  letter-spacing: 2px;
}

.copy-btn {
  width: 28px;
  height: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.copy-btn:hover {
  background: var(--bg-hover);
  color: var(--accent);
  border-color: var(--accent);
}

.sip-user-actions {
  display: flex;
  gap: 8px;
}

/* predefined caller ids */
.predefined-cids-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.predefined-cid {
  background: var(--bg-darker);
  border: 1px solid var(--border);
  padding: 12px 16px;
  transition: all 0.15s ease;
}

.predefined-cid:hover {
  border-color: var(--accent);
}

.cid-number {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-bright);
  display: block;
  margin-bottom: 4px;
}

.cid-label {
  font-size: 11px;
  color: var(--text-dim);
}

/* quick actions */
.quick-actions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.quick-action-card {
  background: var(--bg-darker);
  border: 1px solid var(--border);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.quick-action-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.quick-action-title {
  font-size: 13px;
  color: var(--text-bright);
}

.quick-action-desc {
  font-size: 11px;
  color: var(--text-dim);
}

/* predefined cids preview */
.predefined-cids-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cid-chip {
  background: var(--bg-darker);
  border: 1px solid var(--border);
  padding: 6px 12px;
  font-size: 11px;
  color: var(--text-dim);
}

/* caller id assignment modal */
.cid-type-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.cid-tab {
  flex: 1;
  padding: 10px;
  background: var(--bg-darker);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: var(--font-mono);
}

.cid-tab:hover {
  border-color: var(--border-light);
  color: var(--text);
}

.cid-tab.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.cid-list {
  max-height: 300px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cid-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--bg-darker);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.15s ease;
}

.cid-option:hover {
  border-color: var(--border-light);
}

.cid-option input[type="radio"] {
  display: none;
}

.cid-option input[type="radio"]:checked + .cid-option-content {
  color: var(--accent);
}

.cid-option:has(input[type="radio"]:checked) {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.cid-option-content {
  flex: 1;
}

.cid-option-number {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-bright);
  display: block;
}

.cid-option-label {
  font-size: 11px;
  color: var(--text-dim);
}

/* text utilities */
.text-success {
  color: var(--success);
}

.text-danger {
  color: var(--danger);
}

.text-warning {
  color: var(--warning);
}

/* ══════════════════════════════════════════════════════════════
   mobile menu (toggle + overlay, shown on small screens)
   ══════════════════════════════════════════════════════════════ */

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 150;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.sidebar-overlay.active {
  display: block;
  opacity: 1;
}
@media (min-width: 769px) {
  .sidebar-overlay { display: none !important; }
}

.menu-toggle-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: var(--touch-min);
  min-width: var(--touch-min);
  height: var(--touch-min);
  min-height: var(--touch-min);
  padding: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.menu-toggle-btn svg {
  width: 22px;
  height: 22px;
}
@media (max-width: 768px) {
  .menu-toggle-btn { display: flex; }
}
@media (min-width: 769px) {
  .menu-toggle-btn { display: none !important; }
}

body.menu-open {
  overflow: hidden;
  position: fixed;
  width: 100%;
}

/* ══════════════════════════════════════════════════════════════
   responsive - tablet and mobile
   ══════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
  .sidebar {
    width: min(280px, 85vw);
    max-width: 100%;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
    z-index: 200;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.4);
    padding-top: var(--safe-top);
    padding-bottom: var(--safe-bottom);
    padding-left: var(--safe-left);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
    width: 100%;
    padding-top: var(--safe-top);
    padding-bottom: var(--safe-bottom);
    padding-left: var(--safe-left);
    padding-right: var(--safe-right);
  }
  
  .top-bar {
    padding-left: 12px;
    padding-right: 16px;
    min-height: var(--touch-min);
    gap: 12px;
  }
  
  .top-bar .page-title {
    font-size: 14px;
  }
  
  .top-bar-right .status-indicator span {
    font-size: 11px;
  }
  
  .content {
    padding: 16px;
    padding-bottom: calc(16px + var(--safe-bottom));
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  
  .stat-card {
    padding: 16px;
  }
  
  .stat-value {
    font-size: 22px;
  }
  
  .grid-2 {
    grid-template-columns: 1fr;
  }
  
  .sip-users-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  
  .sip-user-card {
    padding: 16px;
  }
  
  .sip-user-card.add-card {
    min-height: 160px;
  }
  
  .quick-actions-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  
  .quick-action-card {
    padding: 16px;
    min-height: var(--touch-min);
  }
  
  .card {
    padding: 16px;
  }
  
  /* touch-friendly buttons and nav */
  .btn {
    min-height: var(--touch-min);
    padding: 12px 20px;
    font-size: 12px;
  }
  
  .btn-sm {
    min-height: 36px;
    padding: 8px 14px;
  }
  
  .nav-item {
    min-height: var(--touch-min);
    padding: 12px 14px;
    font-size: 13px;
  }
  
  .nav-section {
    padding: 12px 10px;
  }
  
  .sidebar-footer .user-info {
    min-height: var(--touch-min);
    padding: 12px;
  }
  
  /* inputs: 16px prevents iOS zoom on focus */
  .input {
    min-height: var(--touch-min);
    font-size: 16px;
    padding: 12px 14px;
  }
  
  .input-label {
    font-size: 11px;
  }
  
  /* tables: horizontal scroll */
  .table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-left: -16px;
    margin-right: -16px;
    padding-left: 16px;
    padding-right: 16px;
  }
  
  .table {
    min-width: 480px;
  }
  
  .table th,
  .table td {
    padding: 12px 10px;
    font-size: 12px;
  }
  
  /* caller id grid */
  .callerid-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  
  .callerid-card {
    padding: 16px;
    min-height: var(--touch-min);
  }
  
  .predefined-cids-grid {
    grid-template-columns: 1fr;
  }
  
  .cid-tab {
    min-height: var(--touch-min);
    padding: 12px;
  }
  
  .cid-option {
    min-height: var(--touch-min);
    padding: 14px;
  }
  
  /* modals */
  .modal {
    max-width: calc(100vw - 32px);
    max-height: calc(100vh - 32px - var(--safe-top) - var(--safe-bottom));
    margin: 16px;
    margin-top: calc(16px + var(--safe-top));
    margin-bottom: calc(16px + var(--safe-bottom));
  }
  
  .modal-body {
    padding: 20px;
  }
  
  .modal-header,
  .modal-footer {
    padding: 16px 20px;
  }
  
  .copy-btn {
    min-width: var(--touch-min);
    min-height: var(--touch-min);
  }
  
  /* admin tabs */
  .admin-tab {
    min-height: var(--touch-min);
    padding: 12px 16px;
    font-size: 13px;
  }
}

/* auth pages (login, register, support, etc.) */
@media (max-width: 768px) {
  .auth-page {
    padding: 16px;
    padding-top: calc(16px + var(--safe-top));
    padding-bottom: calc(16px + var(--safe-bottom));
    padding-left: calc(16px + var(--safe-left));
    padding-right: calc(16px + var(--safe-right));
  }
  
  .auth-container {
    max-width: 100%;
    padding: 24px 20px;
  }
  
  .auth-card {
    padding: 24px 20px;
  }
  
  .auth-logo-text {
    font-size: 22px;
  }
  
  .auth-title {
    font-size: 18px;
  }
  
  .auth-subtitle {
    font-size: 13px;
  }
  
  .auth-footer {
    font-size: 13px;
  }
  
  .support-link {
    min-height: var(--touch-min);
    padding: 14px 16px;
  }
}

/* very small phones */
@media (max-width: 380px) {
  html {
    font-size: 12px;
  }
  
  .content {
    padding: 12px;
  }
  
  .stat-value {
    font-size: 20px;
  }
  
  .sidebar {
    width: 100%;
  }
}