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

:root {
  --bg-primary: #0a0f1a;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-card-hover: rgba(17, 24, 39, 0.9);
  --border: rgba(255, 255, 255, 0.06);
  --border-focus: rgba(37, 211, 102, 0.5);
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --accent: #25d366;
  --accent-dim: rgba(37, 211, 102, 0.15);
  --accent-glow: rgba(37, 211, 102, 0.3);
  --danger: #ef4444;
  --danger-dim: rgba(239, 68, 68, 0.15);
  --warning: #f59e0b;
  --info: #3b82f6;
  --info-dim: rgba(59, 130, 246, 0.15);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
  --glass: blur(20px);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Ambient background glow */
body::before {
  content: "";
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  top: -200px;
  right: -100px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

body::after {
  content: "";
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(59, 130, 246, 0.15) 0%,
    transparent 70%
  );
  bottom: -100px;
  left: -100px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}

/* ── Header ── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 15, 26, 0.8);
  backdrop-filter: var(--glass);
  border-bottom: 1px solid var(--border);
  padding: 16px 32px;
}

.header-inner {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.header-logo {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), #128c7e);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 2px 12px var(--accent-glow);
}

.header h1 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

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

.status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(37, 211, 102, 0.2);
  transition: var(--transition);
}

.status-badge.disconnected {
  background: var(--danger-dim);
  color: var(--danger);
  border-color: rgba(239, 68, 68, 0.2);
}

.status-badge.qr {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
  border-color: rgba(245, 158, 11, 0.2);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

/* ── Tunnel Control ── */
.tunnel-control {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 100px;
}

.tunnel-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
}

.tunnel-status {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
}

.tunnel-status.starting {
  color: var(--warning);
}

.tunnel-url {
  font-size: 12px;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 3px 10px;
  border-radius: 100px;
  border: 1px solid rgba(37, 211, 102, 0.2);
  cursor: pointer;
  transition: var(--transition);
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tunnel-url:hover {
  background: rgba(37, 211, 102, 0.25);
}

/* Toggle Switch */
.toggle-switch {
  position: relative;
  width: 36px;
  height: 20px;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 100px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
}

.toggle-slider::before {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text-muted);
  top: 2px;
  left: 2px;
  transition: var(--transition);
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--accent-dim);
  border-color: rgba(37, 211, 102, 0.3);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(16px);
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}

/* ── Main Layout ── */
.main {
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px 32px;
  position: relative;
  z-index: 1;
}

/* ── QR Code Panel ── */
.qr-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.qr-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

.qr-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.5s ease;
}

@keyframes slideUp {
  from {
    transform: translateY(30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.qr-card h2 {
  font-size: 22px;
  margin-bottom: 8px;
  font-weight: 600;
}

.qr-card p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 24px;
}

.qr-card img {
  width: 280px;
  height: 280px;
  border-radius: var(--radius-sm);
  background: white;
  padding: 12px;
}

/* ── Stats Grid ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
}

.stat-card:nth-child(1)::before {
  background: var(--accent);
}
.stat-card:nth-child(2)::before {
  background: var(--info);
}
.stat-card:nth-child(3)::before {
  background: var(--warning);
}
.stat-card:nth-child(4)::before {
  background: #8b5cf6;
}

.stat-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.stat-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1;
}

/* ── Content Grid ── */
.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

@media (max-width: 900px) {
  .content-grid {
    grid-template-columns: 1fr;
  }
}

/* ── Card ── */
.card {
  background: var(--bg-card);
  backdrop-filter: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.1);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title .icon {
  font-size: 16px;
}

.card-body {
  padding: 20px;
}

/* ── Forms ── */
.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

.form-control:focus {
  border-color: var(--border-focus);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.1);
}

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

textarea.form-control {
  resize: vertical;
  min-height: 80px;
}

select.form-control {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b7280' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-xs);
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
  outline: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #128c7e);
  color: white;
  box-shadow: 0 2px 12px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:active {
  transform: translateY(0);
}

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

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.25);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.btn-block {
  width: 100%;
}

/* ── Message Log ── */
.message-log {
  max-height: 420px;
  overflow-y: auto;
  padding: 4px 0;
}

.message-log::-webkit-scrollbar {
  width: 4px;
}

.message-log::-webkit-scrollbar-track {
  background: transparent;
}

.message-log::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

.msg-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 16px;
  border-radius: var(--radius-xs);
  transition: var(--transition);
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.msg-item:hover {
  background: rgba(255, 255, 255, 0.03);
}

.msg-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.msg-item.sent .msg-avatar {
  background: var(--accent-dim);
}

.msg-item.received .msg-avatar {
  background: var(--info-dim);
}

.msg-content {
  flex: 1;
  min-width: 0;
}

.msg-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 2px;
}

.msg-name {
  font-size: 13px;
  font-weight: 600;
}

.msg-time {
  font-size: 11px;
  color: var(--text-muted);
}

.msg-badge {
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 100px;
  font-weight: 600;
}

.msg-item.sent .msg-badge {
  background: var(--accent-dim);
  color: var(--accent);
}

.msg-item.received .msg-badge {
  background: var(--info-dim);
  color: var(--info);
}

.msg-body {
  font-size: 13px;
  color: var(--text-secondary);
  word-break: break-word;
  line-height: 1.5;
}

/* ── Groups List ── */
.group-list {
  max-height: 420px;
  overflow-y: auto;
}

.group-list::-webkit-scrollbar {
  width: 4px;
}

.group-list::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

.group-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.group-item:last-child {
  border-bottom: none;
}

.group-item:hover {
  background: rgba(255, 255, 255, 0.03);
}

.group-info {
  flex: 1;
  min-width: 0;
}

.group-name {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.group-meta {
  font-size: 11px;
  color: var(--text-muted);
}

.group-actions {
  display: flex;
  gap: 6px;
}

/* ── Webhooks List ── */
.hook-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.hook-item:last-child {
  border-bottom: none;
}

.hook-item:hover {
  background: rgba(255, 255, 255, 0.03);
}

.hook-url {
  font-size: 13px;
  color: var(--text-secondary);
  font-family: "Courier New", monospace;
  word-break: break-all;
  flex: 1;
}

.hook-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

/* ── Full Width Section ── */
.full-width {
  margin-bottom: 24px;
}

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
}

.empty-state .icon {
  font-size: 32px;
  margin-bottom: 8px;
  opacity: 0.4;
}

.empty-state p {
  font-size: 13px;
}

/* ── Toast ── */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius-xs);
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow);
  animation: toastIn 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 260px;
}

.toast.success {
  background: rgba(37, 211, 102, 0.9);
  color: white;
}

.toast.error {
  background: rgba(239, 68, 68, 0.9);
  color: white;
}

.toast.info {
  background: rgba(59, 130, 246, 0.9);
  color: white;
}

@keyframes toastIn {
  from {
    transform: translateX(100px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .header {
    padding: 12px 16px;
  }
  .main {
    padding: 16px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .header h1 {
    font-size: 16px;
  }
  .tunnel-url {
    display: none;
  }
}

/* ── Loading Spinner ── */
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}

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

/* ── Section Title ── */
.section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

/* ── Inline Form ── */
.inline-form {
  display: flex;
  gap: 8px;
}

.inline-form .form-control {
  flex: 1;
}

/* ── Tab Bar ── */
.tab-bar {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-family: inherit;
  transition: var(--transition);
}

.tab-btn:hover {
  color: var(--text-secondary);
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}