/* Enhanced SIM CRM - Premium Glass Design with Icons */
:root {
  --bg-main: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --border-glass: rgba(255, 255, 255, 0.95);
  --accent-red: #e53935;
  --accent-red-hover: #c62828;
  --accent-red-soft: rgba(229, 57, 53, 0.15);
  --text-main: #222;
  --text-secondary: #555;
  --gray-soft: #e0e0e0;
  --gray-medium: #bdbdbd;
  --success: #43a047;
  --warning: #fb8c00;
  --danger: #e53935;
  --info: #039be5;
  --secondary: #757575;
  --dark: #424242;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
}

/* Login Page */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg-main);
}

.glass-card {
  background: var(--glass-bg);
  border-radius: 20px;
  padding: 28px;
  border: 1px solid var(--border-glass);
  box-shadow: 0 20px 60px rgba(0,0,0,0.15), inset 0 1px 0 rgba(255,255,255,0.6);
  backdrop-filter: blur(20px);
  transition: transform 0.2s, box-shadow 0.2s;
}

.glass-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 70px rgba(0,0,0,0.2), inset 0 1px 0 rgba(255,255,255,0.6);
}

.login-card {
  width: 100%;
  max-width: 400px;
}

.logo {
  text-align: center;
  margin: 0 0 8px 0;
  letter-spacing: 5px;
  background: linear-gradient(135deg, var(--accent-red), #f44336);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 32px;
  font-weight: 700;
}

.subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
  margin-bottom: 28px;
}

/* Header */
.main-header {
  margin: 20px;
  margin-bottom: 30px;
  padding: 18px 28px;
  background: rgba(255, 255, 255, 0.9);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.header-logo {
  background: linear-gradient(135deg, var(--accent-red), #f44336);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 24px;
  letter-spacing: 3px;
  font-weight: 700;
}

.header-logo i {
  -webkit-text-fill-color: var(--accent-red);
  margin-left: 8px;
}

.main-nav {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--text-main);
  text-decoration: none;
  padding: 10px 18px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.main-nav a:hover {
  background: var(--accent-red-soft);
  color: var(--accent-red);
  transform: translateY(-2px);
}

.user-menu {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  font-weight: 500;
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px 50px;
}

.page-header h1 {
  font-size: 28px;
  margin-bottom: 28px;
  color: white;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.stat-card {
  text-align: center;
  padding: 32px 24px;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
  transform: rotate(45deg);
  transition: all 0.5s;
}

.stat-card:hover::before {
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%) rotate(45deg); }
  100% { transform: translateX(100%) rotate(45deg); }
}

.stat-icon {
  font-size: 42px;
  margin-bottom: 12px;
  opacity: 0.3;
}

.stat-number {
  font-size: 42px;
  font-weight: 700;
  color: var(--accent-red);
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
}

.stat-success .stat-number { color: var(--success); }
.stat-success .stat-icon { color: var(--success); }
.stat-warning .stat-number { color: var(--warning); }
.stat-warning .stat-icon { color: var(--warning); }
.stat-danger .stat-number { color: var(--danger); }
.stat-danger .stat-icon { color: var(--danger); }

/* Section */
.section {
  margin-bottom: 40px;
}

.section h2 {
  font-size: 22px;
  margin-bottom: 20px;
  color: white;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.alert-section {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.95; }
}

/* Forms */
.form-group {
  margin-bottom: 18px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

input[type="text"],
input[type="password"],
input[type="date"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 2px solid var(--gray-soft);
  outline: none;
  background: rgba(255,255,255,0.95);
  font-size: 14px;
  transition: all 0.3s;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent-red);
  box-shadow: 0 0 0 4px var(--accent-red-soft);
  transform: translateY(-1px);
}

textarea {
  resize: vertical;
  min-height: 90px;
}

/* Buttons */
.btn {
  border: none;
  padding: 11px 24px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-red), #f44336);
  color: white;
}

.btn-secondary {
  background: linear-gradient(135deg, var(--gray-medium), #9e9e9e);
  color: white;
}

.btn-success {
  background: linear-gradient(135deg, var(--success), #66bb6a);
  color: white;
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger), #f44336);
  color: white;
}

.btn-sm {
  padding: 7px 16px;
  font-size: 13px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table thead {
  background: linear-gradient(135deg, rgba(229, 57, 53, 0.1), rgba(244, 67, 54, 0.05));
}

.data-table th,
.data-table td {
  padding: 14px 12px;
  text-align: right;
  border-bottom: 1px solid var(--gray-soft);
  font-size: 14px;
}

.data-table th {
  font-weight: 700;
  color: var(--accent-red);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table tbody tr {
  transition: all 0.2s;
}

.data-table tbody tr:hover {
  background: rgba(229, 57, 53, 0.08);
  transform: scale(1.01);
}

.expiring-row {
  background: rgba(251, 140, 0, 0.1);
  animation: highlight 2s infinite;
}

@keyframes highlight {
  0%, 100% { background: rgba(251, 140, 0, 0.1); }
  50% { background: rgba(251, 140, 0, 0.2); }
}

/* Badges */
.badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-success {
  background: linear-gradient(135deg, rgba(67, 160, 71, 0.2), rgba(102, 187, 106, 0.15));
  color: var(--success);
}

.badge-warning {
  background: linear-gradient(135deg, rgba(251, 140, 0, 0.2), rgba(255, 167, 38, 0.15));
  color: var(--warning);
}

.badge-danger {
  background: linear-gradient(135deg, rgba(229, 57, 53, 0.2), rgba(244, 67, 54, 0.15));
  color: var(--danger);
}

.badge-info {
  background: linear-gradient(135deg, rgba(3, 155, 229, 0.2), rgba(41, 182, 246, 0.15));
  color: var(--info);
}

.badge-secondary {
  background: linear-gradient(135deg, rgba(117, 117, 117, 0.2), rgba(158, 158, 158, 0.15));
  color: var(--secondary);
}

.badge-dark {
  background: linear-gradient(135deg, rgba(66, 66, 66, 0.3), rgba(97, 97, 97, 0.2));
  color: var(--dark);
}

/* Alerts */
.alert {
  padding: 14px 18px;
  border-radius: 12px;
  margin-bottom: 18px;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
}

.alert-danger {
  background: #ffebee;
  color: #c62828;
  border: 1px solid #ef9a9a;
}

.alert-success {
  background: #e8f5e9;
  color: #2e7d32;
  border: 1px solid #a5d6a7;
}

.alert-warning {
  background: #fff3e0;
  color: #e65100;
  border: 1px solid #ffcc80;
}

/* Quick Actions */
.quick-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

/* Action Buttons */
.action-btns {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.action-btns .btn {
  padding: 7px 14px;
  font-size: 12px;
}

/* Dropdown */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-toggle {
  cursor: pointer;
}

.dropdown-menu {
  display: none;
  position: absolute;
  left: 0;
  top: 100%;
  background: white;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  min-width: 180px;
  z-index: 1000;
  overflow: hidden;
  margin-top: 8px;
}

.dropdown-menu.show {
  display: block;
  animation: dropdownFade 0.2s ease-out;
}

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

.dropdown-item {
  display: block;
  width: 100%;
  padding: 10px 16px;
  text-align: right;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
  text-decoration: none;
  color: var(--text-main);
}

.dropdown-item:hover {
  background: var(--accent-red-soft);
  color: var(--accent-red);
}

.dropdown-item.text-danger:hover {
  background: rgba(229, 57, 53, 0.1);
  color: var(--danger);
}

.dropdown-divider {
  height: 1px;
  background: var(--gray-soft);
  margin: 4px 0;
}

/* Form Layout */
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 18px;
}

/* Responsive */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .main-nav {
    width: 100%;
    justify-content: center;
  }
  
  .data-table {
    font-size: 12px;
  }
  
  .data-table th,
  .data-table td {
    padding: 10px 8px;
  }

  .page-header h1 {
    font-size: 24px;
  }
}