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

:root {
  --bg-dark: #0f172a;
  --bg-card: #1e293b;
  --bg-glass: rgba(30, 41, 59, 0.7);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --border: #334155;
  --font-family: 'Outfit', sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4 { color: var(--text-main); font-weight: 600; }
a { color: var(--primary); text-decoration: none; transition: 0.3s; }
a:hover { color: var(--primary-hover); }

/* Layouts */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 0;
}

/* Navbar */
.navbar {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0.6rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}
.nav-brand {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(to right, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

/* Glassmorphism Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

/* Grid System */
.grid {
  display: grid;
  gap: 2rem;
}
.grid-2 { grid-template-columns: 1fr 1fr; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  border: none;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: inherit;
  text-align: center;
}
.btn-primary {
  background: var(--primary);
  color: white;
}
.btn-primary:hover { background: var(--primary-hover); }
.btn-success { background: var(--success); color: white; }
.btn-danger { background: var(--danger); color: white; border: 1px solid var(--danger); }
.btn-outline { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: white; }

/* Forms */
.form-group { margin-bottom: 1.5rem; }
.form-label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
  font-weight: 500;
}
.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.8);
  color: var(--text-main);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Auth Pages */
.auth-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 80vh;
}
.auth-card {
  width: 100%;
  max-width: 450px;
}
.auth-title {
  text-align: center;
  margin-bottom: 2rem;
  font-size: 2rem;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
}
.badge-active, .badge-connected, .badge-paid { background: rgba(16, 185, 129, 0.1); color: var(--success); border: 1px solid rgba(16, 185, 129, 0.2); }
.badge-inactive, .badge-disconnected { background: rgba(148, 163, 184, 0.1); color: var(--text-muted); border: 1px solid rgba(148, 163, 184, 0.2); }
.badge-expired, .badge-deleted, .badge-rejected { background: rgba(239, 68, 68, 0.1); color: var(--danger); border: 1px solid rgba(239, 68, 68, 0.2); }
.badge-pending { background: rgba(245, 158, 11, 0.1); color: var(--warning); border: 1px solid rgba(245, 158, 11, 0.2); }

/* QR Code Display */
.qr-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  background: white;
  border-radius: 12px;
  margin: 1.5rem 0;
}
.qr-container img {
  max-width: 250px;
  height: auto;
  transition: opacity 0.3s ease;
}
.qr-skeleton {
    width: 250px;
    height: 250px;
    background: linear-gradient(90deg, #e2e8f0 25%, #cbd5e1 50%, #e2e8f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: 8px;
}
@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Utility */
.text-center { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.ms-1 { margin-left: 1rem; }
.mb-1 { margin-bottom: 1rem; }
.d-flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.hidden { display: none !important; }

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
th {
  color: var(--text-muted);
  font-weight: 500;
}

/* Alerts */
.alert {
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
}
.alert-error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.2);
}
.alert-success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

@media (max-width: 768px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
}

.grid-3 { grid-template-columns: repeat(3, 1fr); }
.mb-2 { margin-bottom: 2rem; }
.text-muted { color: var(--text-muted); }

@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
}

/* Toggle Switch */
.toggle-switch {
  position: relative;
  width: 52px;
  height: 28px;
  flex-shrink: 0;
}
.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--border);
  border-radius: 28px;
  transition: 0.3s;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  height: 22px;
  width: 22px;
  left: 3px;
  bottom: 3px;
  background: white;
  border-radius: 50%;
  transition: 0.3s;
}
.toggle-switch input:checked + .toggle-slider {
  background: var(--success);
}
.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(24px);
}

/* Settings Item */
.settings-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
}
.settings-item:last-child {
  border-bottom: none;
}
.settings-info {
  flex: 1;
  margin-right: 1rem;
}
.settings-info h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.settings-info p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Back Link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  transition: color 0.3s;
}
.back-link:hover {
  color: var(--primary);
}

/* Event Checkbox Grid */
.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}
.event-checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 0.8rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.3s, background 0.3s;
  font-size: 0.85rem;
}
.event-checkbox:hover {
  border-color: var(--primary);
  background: rgba(59, 130, 246, 0.05);
}
.event-checkbox input[type="checkbox"] {
  accent-color: var(--success);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

/* Instance nav buttons */
.instance-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.8rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--border);
}
.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  border-radius: 6px;
}

/* ── Button Loading State ── */
.btn-loading {
  position: relative;
  pointer-events: none;
  opacity: 0.7;
  cursor: not-allowed;
}
.btn-loading::after {
  content: '';
  width: 14px;
  height: 14px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-right-color: currentColor;
  border-radius: 50%;
  animation: btn-spin 0.5s linear infinite;
  display: inline-block;
  margin-left: 8px;
  vertical-align: middle;
}
@keyframes btn-spin {
  to { transform: rotate(360deg); }
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.btn:active:not(:disabled):not(.btn-loading) {
  transform: scale(0.97);
}

/* ── Footer ── */
.footer {
  margin-top: auto;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}
.footer a {
  color: var(--text-muted);
  transition: color 0.3s;
}
.footer a:hover {
  color: var(--primary);
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 0.5rem;
}