/* AirTransfer — Cyber Dark Glassmorphism (tokens from the Stitch style guide),
   written as plain CSS so the app never depends on an external CDN. */
:root {
  --background: #13131b;
  --surface-container: #1f1f27;
  --surface-container-high: #292932;
  --surface-container-highest: #34343d;
  --surface-bright: #393841;
  --on-surface: #e4e1ed;
  --on-surface-variant: #c7c4d7;
  --outline: #908fa0;
  --outline-variant: #464554;
  --primary: #c0c1ff;
  --on-primary: #1000a9;
  --primary-container: #494bd6;
  --tertiary: #4cd7f6;
  --on-tertiary: #003640;
  --error: #ffb4ab;
  --glass-bg: rgba(27, 27, 35, 0.6);
  --glass-border: rgba(255, 255, 255, 0.1);
  --radius: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--background);
  color: var(--on-surface);
  font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
}

.mono {
  font-family: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
  letter-spacing: 0.02em;
}

h1, h2, h3 {
  font-family: 'Outfit', 'Segoe UI', system-ui, sans-serif;
  font-weight: 700;
  margin: 0;
}

a { color: var(--tertiary); }

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
}

.btn {
  border: none;
  border-radius: 12px;
  padding: 14px 22px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: transform 150ms ease-in-out, box-shadow 150ms ease-in-out;
}
.btn:active { transform: scale(0.96); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #8083ff);
  color: var(--on-primary);
  box-shadow: 0 0 24px rgba(99, 102, 241, 0.35);
}
.btn-primary:hover { box-shadow: 0 0 32px rgba(99, 102, 241, 0.55); }

.btn-outline {
  background: transparent;
  color: var(--on-surface);
  border: 1px solid var(--outline-variant);
}
.btn-outline:hover { border-color: var(--outline); }

.btn-disabled {
  background: transparent;
  color: var(--outline);
  border: 1px dashed var(--outline-variant);
  cursor: not-allowed;
}

input[type="text"], textarea {
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  border-radius: 10px;
  color: var(--on-surface);
  padding: 10px 12px;
  font-family: inherit;
}
input[type="text"]:focus, textarea:focus {
  outline: none;
  border-color: var(--tertiary);
}

.pin-box {
  width: 40px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-container-high);
  border: 1px solid var(--outline-variant);
  border-radius: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(76, 215, 246, 0.12);
  color: var(--tertiary);
}
.badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--tertiary);
  box-shadow: 0 0 8px var(--tertiary);
}

.scrollbar-thin::-webkit-scrollbar { width: 6px; height: 6px; }
.scrollbar-thin::-webkit-scrollbar-thumb { background: var(--outline-variant); border-radius: 3px; }

.toast-stack {
  position: fixed;
  top: 20px;
  right: 20px;
  left: 20px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  pointer-events: none;
}
.toast {
  background: var(--surface-container-high);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--on-surface);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  max-width: 340px;
  animation: toast-in 200ms ease-out;
}
.toast strong { color: var(--tertiary); }
@keyframes toast-in {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}