@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Prompt:wght@300;400;500;600;700&display=swap');

:root {
  --bg-main: #0a0b0e;
  --bg-sidebar: #0f1117;
  --bg-card: #141720;
  --bg-card-hover: #1a1e2a;
  --bg-card-elevated: #1e2230;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(239, 68, 68, 0.35);

  --primary: #ef4444;
  --primary-hover: #dc2626;
  --primary-dark: #991b1b;
  --primary-glow: rgba(239, 68, 68, 0.25);

  --accent-crimson: #e11d48;
  --accent-gradient: linear-gradient(135deg, #ef4444 0%, #be123c 100%);
  --accent-gradient-glow: linear-gradient(135deg, rgba(239,68,68,0.2) 0%, rgba(190,18,60,0.05) 100%);

  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.2);
  --warning: #f59e0b;
  --warning-glow: rgba(245, 158, 11, 0.2);
  --danger: #ef4444;
  --info: #3b82f6;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 25px rgba(239, 68, 68, 0.35);
}

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

body {
  font-family: 'Prompt', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Background gradient ambiance */
body::before {
  content: '';
  position: fixed;
  top: -150px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(239, 68, 68, 0.12) 0%, rgba(0, 0, 0, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  bottom: -150px;
  left: 200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(225, 29, 72, 0.08) 0%, rgba(0, 0, 0, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

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

/* Sidebar */
.sidebar {
  width: 270px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  transition: transform var(--transition-normal);
  backdrop-filter: blur(16px);
}

.sidebar-header {
  padding: 24px 20px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(239, 68, 68, 0.4));
  transition: transform var(--transition-fast);
}

.sidebar-logo:hover {
  transform: scale(1.05);
}

.brand-info h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-info h2 span {
  color: var(--primary);
  text-shadow: 0 0 12px var(--primary-glow);
}

.brand-badge {
  font-size: 0.68rem;
  text-transform: uppercase;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 9999px;
  display: inline-block;
  margin-top: 2px;
}

.badge-admin {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.25), rgba(190, 18, 60, 0.3));
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.badge-reseller {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(37, 99, 235, 0.25));
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.35);
}

.sidebar-nav {
  padding: 18px 12px;
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-section-title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  padding: 10px 12px 4px;
  margin-top: 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

.nav-item:hover {
  color: #fff;
  background-color: var(--bg-card);
  transform: translateX(3px);
}

.nav-item.active {
  color: #fff;
  background: var(--accent-gradient-glow);
  border: 1px solid rgba(239, 68, 68, 0.25);
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.12);
}

.nav-item.active svg {
  color: var(--primary);
  filter: drop-shadow(0 0 6px var(--primary-glow));
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 15%;
  height: 70%;
  width: 4px;
  border-radius: 0 4px 4px 0;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
}

.sidebar-footer {
  padding: 16px 14px;
  border-top: 1px solid var(--border-color);
  background: rgba(10, 11, 14, 0.6);
}

.user-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.user-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  color: #fff;
  box-shadow: 0 0 10px var(--primary-glow);
}

.user-details {
  overflow: hidden;
}

.user-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 0.72rem;
  color: var(--text-dim);
}

.btn-logout {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  transition: all var(--transition-fast);
}

.btn-logout:hover {
  color: var(--primary);
  background: rgba(239, 68, 68, 0.15);
}

/* Main Content Area */
.main-wrapper {
  flex: 1;
  margin-left: 270px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Top Navigation Bar */
.topbar {
  height: 70px;
  background: rgba(15, 17, 23, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-main);
  cursor: pointer;
}

.page-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.server-clock {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card);
  padding: 6px 14px;
  border-radius: 9999px;
  border: 1px solid var(--border-color);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--success);
  box-shadow: 0 0 8px var(--success);
  display: inline-block;
}

/* Page Body */
.content-area {
  padding: 28px;
  flex: 1;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.14);
}

.card-glow {
  position: relative;
}

.card-glow::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Stat Cards Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-glow);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.stat-info p {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 6px;
}

.stat-value {
  font-size: 1.85rem;
  font-weight: 800;
  color: #fff;
  font-family: 'Inter', sans-serif;
  letter-spacing: -0.02em;
}

.stat-sub {
  font-size: 0.74rem;
  color: var(--text-dim);
  margin-top: 4px;
}

.stat-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.icon-red {
  background: rgba(239, 68, 68, 0.12);
  color: var(--primary);
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.icon-green {
  background: rgba(16, 185, 129, 0.12);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.icon-blue {
  background: rgba(59, 130, 246, 0.12);
  color: var(--info);
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.icon-amber {
  background: rgba(245, 158, 11, 0.12);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

/* Quota Progress Bar */
.quota-box {
  background: var(--bg-card-elevated);
  border-radius: var(--radius-md);
  padding: 16px;
  margin: 14px 0;
  border: 1px solid var(--border-color);
}

.quota-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.progress-track {
  width: 100%;
  height: 10px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 9999px;
  overflow: hidden;
  position: relative;
}

.progress-bar {
  height: 100%;
  border-radius: 9999px;
  transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  background: var(--accent-gradient);
  box-shadow: 0 0 10px var(--primary-glow);
}

/* Interactive Expiry Selectors */
.expiry-options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 14px;
  margin: 16px 0;
}

.expiry-radio {
  display: none;
}

.expiry-card {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.expiry-card:hover {
  border-color: rgba(239, 68, 68, 0.4);
  transform: translateY(-2px);
}

.expiry-radio:checked + .expiry-card {
  background: var(--accent-gradient-glow);
  border-color: var(--primary);
  box-shadow: 0 0 16px rgba(239, 68, 68, 0.25);
}

.expiry-days {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  font-family: 'Inter', sans-serif;
}

.expiry-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.expiry-card.disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
  filter: grayscale(1);
}

/* Amount Stepper Input */
.stepper-container {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 260px;
}

.btn-stepper {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-stepper:hover:not(:disabled) {
  background: rgba(239, 68, 68, 0.2);
  border-color: var(--primary);
  color: var(--primary);
}

.btn-stepper:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.stepper-input {
  flex: 1;
  height: 44px;
  text-align: center;
  font-size: 1.25rem;
  font-weight: 700;
  font-family: 'Inter', sans-serif;
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: #fff;
}

.stepper-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 10px var(--primary-glow);
}

/* Forms */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-main);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 0.95rem;
  font-family: inherit;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 12px var(--primary-glow);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 18px rgba(239, 68, 68, 0.35);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(239, 68, 68, 0.5);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  filter: grayscale(0.5);
}

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

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.3);
  color: #f87171;
}

.btn-danger:hover {
  background: var(--primary);
  color: #fff;
}

.btn-success {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.3);
  color: #34d399;
}

.btn-success:hover {
  background: var(--success);
  color: #fff;
}

.btn-sm {
  padding: 7px 14px;
  font-size: 0.82rem;
  border-radius: var(--radius-sm);
}

.btn-block {
  width: 100%;
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th {
  background: rgba(255, 255, 255, 0.03);
  padding: 14px 18px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 14px 18px;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tbody tr {
  transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.key-code {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9rem;
  background: rgba(0, 0, 0, 0.4);
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fca5a5;
  letter-spacing: 0.04em;
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 600;
}

.badge-success {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

/* Alerts */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  margin-bottom: 20px;
}

.alert-success {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #6ee7b7;
}

.alert-danger {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

.alert-warning {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #fcd34d;
}

.alert-info {
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: #93c5fd;
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  padding: 20px;
}

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

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  max-width: 540px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px) scale(0.96);
  transition: all var(--transition-smooth);
  overflow: hidden;
}

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

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

.modal-header h3 {
  font-size: 1.15rem;
  color: #fff;
  font-weight: 700;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
}

.modal-close:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.modal-body {
  padding: 24px;
  max-height: 70vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  background: rgba(0, 0, 0, 0.2);
}

/* Generated Keys Display Box */
.keys-display-box {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  max-height: 250px;
  overflow-y: auto;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.95rem;
  color: #fca5a5;
  margin: 16px 0;
}

.key-row-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: 6px;
  transition: background var(--transition-fast);
}

.key-row-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* Spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Preset Chip Buttons */
.btn-preset-chip {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 6px 12px;
  color: #fff;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.btn-preset-chip:hover {
  border-color: rgba(56, 189, 248, 0.5);
  background: rgba(56, 189, 248, 0.08);
}

.btn-preset-chip.active {
  background: rgba(56, 189, 248, 0.16);
  border-color: #38bdf8;
  color: #38bdf8;
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.25);
}

/* Mobile Responsive */
@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.8);
  }

  .main-wrapper {
    margin-left: 0;
  }

  .menu-toggle {
    display: block;
  }

  .content-area {
    padding: 18px;
  }

  .topbar {
    padding: 0 18px;
  }
}