/* ============================================================
   OST Offline Vault
   Local bearer-token vault for PWA offline play.
   ============================================================ */

.offline-vault-card {
  margin: 30px 0 36px;
  padding: 28px;
  border-radius: 18px;
  border: 1px solid rgba(0, 255, 159, 0.28);
  background: linear-gradient(135deg, rgba(0, 255, 159, 0.08), rgba(0, 212, 255, 0.05));
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
  overflow: hidden;
}

.offline-vault-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 22px;
  align-items: center;
}

.offline-vault-eyebrow {
  margin: 0 0 6px;
  color: #00ff9f;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.offline-vault-head h3 {
  margin: 0 0 8px;
  color: #fff;
  font-size: 26px;
}

.offline-vault-head p {
  margin: 0;
  color: #cfd8e3;
  line-height: 1.55;
}

.offline-vault-balance {
  min-width: 190px;
  padding: 18px 20px;
  border-radius: 14px;
  border: 1px solid rgba(0, 255, 159, 0.35);
  background: rgba(0, 0, 0, 0.32);
  text-align: right;
}

.offline-vault-balance strong {
  display: block;
  color: #00ff9f;
  font-size: 34px;
  line-height: 1;
}

.offline-vault-balance span {
  display: block;
  margin-top: 6px;
  color: #9aa6b3;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.offline-vault-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  margin-top: 22px;
}

.offline-vault-panel {
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(4, 10, 18, 0.58);
  padding: 18px;
}

.offline-vault-panel h4 {
  margin: 0 0 10px;
  color: #fff;
  font-size: 16px;
}

.offline-vault-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.offline-vault-btn,
.offline-vault-file-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 14px;
  border: 1px solid rgba(0, 212, 255, 0.32);
  border-radius: 10px;
  background: rgba(0, 212, 255, 0.12);
  color: #dff8ff;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease, transform .15s ease;
}

.offline-vault-btn:hover,
.offline-vault-file-label:hover {
  border-color: rgba(0, 255, 159, 0.55);
  background: rgba(0, 255, 159, 0.14);
  transform: translateY(-1px);
}

.offline-vault-btn.primary {
  background: linear-gradient(90deg, #00ff9f, #00d4ff);
  color: #021018;
  border-color: transparent;
}

.offline-vault-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.offline-vault-file-label input {
  display: none;
}

.offline-vault-paste {
  display: none;
  margin-top: 12px;
}

.offline-vault-paste.open {
  display: block;
}

.offline-vault-paste textarea {
  width: 100%;
  min-height: 110px;
  box-sizing: border-box;
  resize: vertical;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.38);
  color: #fff;
  padding: 12px;
  font: 12px/1.45 'SFMono-Regular', Consolas, monospace;
}

.offline-vault-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.offline-vault-metric {
  padding: 12px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
}

.offline-vault-metric span {
  display: block;
  color: #9aa6b3;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.offline-vault-metric strong {
  display: block;
  margin-top: 5px;
  color: #fff;
  font-size: 18px;
}

.offline-vault-log {
  max-height: 130px;
  overflow: auto;
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.28);
  color: #b8c2cf;
  font-size: 12px;
}

.offline-vault-log div + div {
  margin-top: 6px;
}

.offline-vault-status {
  margin-top: 12px;
  min-height: 20px;
  color: #9fdcff;
  font-size: 13px;
}

.offline-vault-status.ok { color: #00ff9f; }
.offline-vault-status.warn { color: #ffd166; }
.offline-vault-status.error { color: #ff8c8c; }

.offline-vault-scan {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 18px;
  background: rgba(0, 0, 0, 0.84);
  backdrop-filter: blur(7px);
}

.offline-vault-scan.open { display: flex; }

.offline-vault-scan-box {
  width: min(520px, 100%);
  border-radius: 16px;
  border: 1px solid rgba(0, 255, 159, 0.28);
  background: #07111e;
  padding: 18px;
}

.offline-vault-scan-box video {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 12px;
  background: #000;
}

@media (max-width: 760px) {
  .offline-vault-head,
  .offline-vault-grid {
    grid-template-columns: 1fr;
  }
  .offline-vault-balance {
    text-align: left;
  }
  .offline-vault-metrics {
    grid-template-columns: 1fr;
  }
}