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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #0f1117;
  color: #e1e1e6;
  min-height: 100vh;
}

.hidden { display: none !important; }

/* Navigation */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: #1a1d27;
  border-bottom: 1px solid #2a2d3a;
}

.nav-brand {
  font-size: 1.3rem;
  font-weight: 700;
  color: #25d366;
}

.nav-links a {
  color: #a1a1aa;
  text-decoration: none;
  margin-left: 1.5rem;
  transition: color 0.2s;
}

.nav-links a:hover { color: #fff; }

/* Auth */
.auth-card {
  max-width: 380px;
  margin: 15vh auto;
  padding: 2.5rem;
  background: #1a1d27;
  border-radius: 12px;
  text-align: center;
}

.auth-card h1 {
  color: #25d366;
  margin-bottom: 0.5rem;
}

.subtitle {
  color: #71717a;
  margin-bottom: 2rem;
}

.password-field {
  position: relative;
}

.password-field input {
  padding-right: 3rem !important;
}

.toggle-password {
  position: absolute;
  right: 0.7rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: #71717a;
  cursor: pointer;
  padding: 0.3rem;
  margin: 0;
  width: auto;
}

.toggle-password:hover {
  color: #fff;
}

#auth-form input {
  width: 100%;
  padding: 0.8rem 1rem;
  margin-bottom: 0.8rem;
  background: #0f1117;
  border: 1px solid #2a2d3a;
  border-radius: 8px;
  color: #fff;
  font-size: 1rem;
}

#auth-form button {
  width: 100%;
  padding: 0.8rem;
  margin-top: 0.5rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: opacity 0.2s;
}

#auth-form button:hover { opacity: 0.9; }

/* Buttons */
.btn-primary {
  background: #25d366;
  color: #000;
  font-weight: 600;
  padding: 0.8rem 1.5rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

.btn-secondary {
  background: transparent;
  color: #25d366;
  border: 1px solid #25d366;
  padding: 0.8rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
}

.btn-danger {
  background: #ef4444;
  color: #fff;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
}

/* Container */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem;
}

.header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

/* Connection status */
.connect-success {
  background: #25d36633;
  color: #25d366;
  padding: 1rem;
  border-radius: 8px;
  text-align: center;
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.connect-pending {
  background: #f59e0b33;
  color: #f59e0b;
  padding: 0.8rem;
  border-radius: 8px;
  text-align: center;
  margin-bottom: 1rem;
}

/* QR Loading */
.qr-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 3rem;
  color: #a1a1aa;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid #2a2d3a;
  border-top: 3px solid #25d366;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Subscription banner */
.sub-banner {
  background: #1a1d27;
  padding: 1rem 1.5rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
  border-left: 4px solid #25d366;
}

/* Instances grid */
.instances-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.instance-card {
  background: #1a1d27;
  border-radius: 10px;
  padding: 1.5rem;
  border: 1px solid #2a2d3a;
}

.instance-card .status {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
}

.status-connected { background: #25d36633; color: #25d366; }
.status-pending { background: #f59e0b33; color: #f59e0b; }
.status-disconnected { background: #ef444433; color: #ef4444; }

.api-key-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.8rem 0;
}

.instance-card .api-key {
  flex: 1;
  background: #0f1117;
  padding: 0.5rem;
  border-radius: 6px;
  font-family: monospace;
  font-size: 0.75rem;
  word-break: break-all;
}

.btn-icon {
  background: #2a2d3a;
  border: none;
  color: #a1a1aa;
  padding: 0.4rem;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
}

.btn-icon:hover { color: #fff; background: #3a3d4a; }

.instance-card input {
  width: 100%;
  padding: 0.5rem;
  background: #0f1117;
  border: 1px solid #2a2d3a;
  border-radius: 6px;
  color: #fff;
  margin: 0.5rem 0;
}

/* Connect page */
.connect-card {
  background: #1a1d27;
  padding: 2rem;
  border-radius: 12px;
  max-width: 500px;
}

.connect-card label {
  display: block;
  margin-bottom: 0.5rem;
  color: #a1a1aa;
  font-size: 0.9rem;
}

.connect-card input {
  width: 100%;
  padding: 0.8rem;
  background: #0f1117;
  border: 1px solid #2a2d3a;
  border-radius: 8px;
  color: #fff;
  margin-bottom: 1rem;
}

#qr-code {
  margin: 1.5rem 0;
  text-align: center;
}

#qr-code img {
  max-width: 280px;
  border-radius: 8px;
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.plan-card {
  background: #1a1d27;
  border: 1px solid #2a2d3a;
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  position: relative;
}

.plan-card.best {
  border-color: #25d366;
  transform: scale(1.02);
}

.plan-card .badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: #25d366;
  color: #000;
  padding: 0.3rem 1rem;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
}

.plan-card h3 {
  margin-bottom: 1rem;
}

.plan-card .price {
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
}

.plan-card .price span {
  font-size: 0.9rem;
  color: #71717a;
}

.plan-card .price-usd {
  color: #71717a;
  margin-bottom: 1.5rem;
}

.plan-card ul {
  list-style: none;
  text-align: left;
}

.plan-card ul li {
  padding: 0.4rem 0;
  color: #a1a1aa;
}

.plan-card ul li::before {
  content: "✓ ";
  color: #25d366;
}

/* Payment info */
.payment-info {
  background: #1a1d27;
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
}

.payment-info p {
  color: #a1a1aa;
  margin: 0.5rem 0;
  text-align: left;
}

.payment-info .btn-primary {
  margin-top: 1.5rem;
}

/* Admin */
.admin-search {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.admin-search input {
  flex: 1;
  padding: 0.8rem;
  background: #0f1117;
  border: 1px solid #2a2d3a;
  border-radius: 8px;
  color: #fff;
}

.admin-user-card {
  background: #1a1d27;
  padding: 1.5rem;
  border-radius: 10px;
  margin-bottom: 1rem;
  border: 1px solid #2a2d3a;
}

.admin-user-card .actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.admin-user-card select {
  padding: 0.5rem;
  background: #0f1117;
  border: 1px solid #2a2d3a;
  border-radius: 6px;
  color: #fff;
}

/* Error */
.error {
  color: #ef4444;
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

.empty-state {
  color: #71717a;
  text-align: center;
  padding: 3rem;
}

/* Responsive */
@media (max-width: 768px) {
  nav {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-links a { margin-left: 1rem; }

  .pricing-grid { grid-template-columns: 1fr; }

  .plan-card.best { transform: none; }
}