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

:root {
  --bg-color: #0f172a;
  --panel-bg: rgba(30, 41, 59, 0.7);
  --panel-border: rgba(255, 255, 255, 0.08);
  --card-bg: #1e293b;
  --card-hover: #334155;
  
  --primary-color: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.35);
  
  --accent-color: #10b981;
  --accent-hover: #059669;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --badge-active-bg: rgba(16, 185, 129, 0.15);
  --badge-active-text: #34d399;
  --badge-trial-bg: rgba(59, 130, 246, 0.15);
  --badge-trial-text: #60a5fa;
  --badge-grace-bg: rgba(245, 158, 11, 0.15);
  --badge-grace-text: #fbbf24;
  --badge-suspended-bg: rgba(239, 68, 68, 0.15);
  --badge-suspended-text: #f87171;
  --badge-expired-bg: rgba(148, 163, 184, 0.15);
  --badge-expired-text: #cbd5e1;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-color);
  background-image: 
    radial-gradient(at 10% 10%, rgba(99, 102, 241, 0.12) 0px, transparent 50%),
    radial-gradient(at 90% 90%, rgba(16, 185, 129, 0.08) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
}

/* Layout */
.app-container {
  display: flex;
  flex: 1;
}

.sidebar {
  width: 260px;
  background: var(--panel-bg);
  backdrop-filter: blur(16px);
  border-right: 1px solid var(--panel-border);
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem 1.5rem;
  border-bottom: 1px solid var(--panel-border);
  margin-bottom: 1.5rem;
}

.brand-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 0 15px var(--primary-glow);
}

.brand-text h1 {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-item:hover, .nav-item.active {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.06);
}

.nav-item.active {
  background: var(--primary-color);
  box-shadow: 0 4px 12px var(--primary-glow);
}

.user-footer {
  padding-top: 1rem;
  border-top: 1px solid var(--panel-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-info {
  font-size: 0.85rem;

  .username {
    font-weight: 600;
    color: var(--text-main);
  }
  .role {
    font-size: 0.75rem;
    color: var(--text-muted);
  }
}

.logout-btn {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  transition: var(--transition);
}

.logout-btn:hover {
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.3);
  background: rgba(239, 68, 68, 0.1);
}

.main-content {
  flex: 1;
  padding: 2rem;
  overflow-y: auto;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

/* Glass Cards */
.card {
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.grid-cols-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.grid-cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-cols-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

/* Stat Widgets */
.stat-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: rgba(99, 102, 241, 0.15);
  color: var(--primary-color);
}

.stat-val {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

th {
  padding: 0.85rem 1rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--panel-border);
}

td {
  padding: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--text-main);
}

tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-active { background: var(--badge-active-bg); color: var(--badge-active-text); }
.badge-trial { background: var(--badge-trial-bg); color: var(--badge-trial-text); }
.badge-grace { background: var(--badge-grace-bg); color: var(--badge-grace-text); }
.badge-suspended { background: var(--badge-suspended-bg); color: var(--badge-suspended-text); }
.badge-expired { background: var(--badge-expired-bg); color: var(--badge-expired-text); }

/* Form Controls */
.form-group {
  margin-bottom: 1.25rem;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.9rem;
  transition: var(--transition);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
}

.btn-primary {
  background: var(--primary-color);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-accent {
  background: var(--accent-color);
  color: #ffffff;
}

.btn-accent:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border: 1px solid var(--panel-border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.35);
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
}

/* Alert Boxes */
.alert {
  padding: 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

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

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

/* Auth Center Card */
.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}

.code-box {
  background: #090d16;
  border: 1px dashed var(--primary-color);
  color: #38bdf8;
  font-family: monospace;
  font-size: 0.85rem;
  padding: 1rem;
  border-radius: var(--radius-sm);
  word-break: break-all;
}

@media (max-width: 768px) {
  .app-container { flex-direction: column; }
  .sidebar { width: 100%; }
  .grid-cols-2, .grid-cols-3, .grid-cols-4 { grid-template-columns: 1fr; }
}