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

body {
  background: linear-gradient(145deg, #f0f4fa 0%, #e6ecf5 100%);
  font-family:
    "Inter",
    system-ui,
    -apple-system,
    sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 1.5rem;
}

.card {
  max-width: 1100px;
  width: 100%;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 2.5rem;
  box-shadow:
    0 20px 40px -12px rgba(0, 20, 40, 0.35),
    0 4px 18px rgba(0, 0, 0, 0.05);
  padding: 2.5rem 2rem;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

h1 {
  font-weight: 600;
  font-size: 2.2rem;
  letter-spacing: -0.02em;
  color: #1a2639;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.25rem;
}

.subhead {
  color: #3a4a6b;
  font-size: 1rem;
  margin-bottom: 2rem;
  border-left: 4px solid #4f7df3;
  padding-left: 1rem;
  background: rgba(79, 125, 243, 0.06);
  border-radius: 0 8px 8px 0;
}

.storage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.8rem;
  margin-bottom: 2.2rem;
}

/* two elegant panels */
.panel {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(4px);
  border-radius: 2rem;
  padding: 1.8rem 1.6rem;
  box-shadow: 0 10px 20px -10px rgba(0, 20, 40, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.7);
  transition: transform 0.2s ease;
}

.panel:hover {
  transform: translateY(-3px);
}

.local {
  border-top: 6px solid #3b82f6;
}

.session {
  border-top: 6px solid #f59e0b;
}

.panel h2 {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 500;
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
  color: #1e293b;
}

.badge {
  font-size: 0.75rem;
  background: #e9eef3;
  padding: 0.25rem 0.8rem;
  border-radius: 30px;
  font-weight: 400;
  color: #475569;
  margin-left: 0.75rem;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-bottom: 1.6rem;
}

.row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

label {
  font-weight: 500;
  color: #334155;
  min-width: 75px;
  font-size: 0.95rem;
}

input {
  flex: 1;
  padding: 0.8rem 1.2rem;
  border: 1px solid #cdd9e9;
  border-radius: 40px;
  font-size: 0.95rem;
  background: rgba(255, 255, 255, 0.8);
  outline: none;
  transition: 0.15s;
  font-family: "Inter", monospace;
}

input:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
  background: white;
}

.session input:focus {
  border-color: #f59e0b;
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
}

.button-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.5rem 0 1.2rem;
}

button {
  background: white;
  border: none;
  padding: 0.65rem 1.2rem;
  border-radius: 50px;
  font-weight: 500;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.02);
  border: 1px solid #dde3ed;
  transition: all 0.15s;
  font-family: "Inter", sans-serif;
  color: #1e293b;
}

.local-panel button:hover {
  background: #eef4ff;
  border-color: #3b82f6;
}

.session-panel button:hover {
  background: #fef3c7;
  border-color: #f59e0b;
}

button.primary {
  background: #3b82f6;
  border-color: #3b82f6;
  color: white;
  box-shadow: 0 6px 12px -6px #3b82f680;
}

button.primary:hover {
  background: #2563eb;
}

.session-panel button.primary {
  background: #f59e0b;
  border-color: #f59e0b;
  box-shadow: 0 6px 12px -6px #f59e0b80;
}
.session-panel button.primary:hover {
  background: #d97706;
}

button.danger {
  background: #fee2e2;
  border-color: #fecaca;
  color: #b91c1c;
}
button.danger:hover {
  background: #fecaca;
}

.display-box {
  background: rgba(10, 20, 35, 0.03);
  border-radius: 24px;
  padding: 1.2rem 1.4rem;
  border: 1px dashed #bac8dc;
}

.display-box p {
  font-weight: 400;
  color: #334155;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.storage-content {
  background: #f8fafc;
  border-radius: 18px;
  padding: 1rem 1.2rem;
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 0.9rem;
  word-break: break-word;
  white-space: pre-wrap;
  border: 1px solid #dce5f0;
  color: #0f172a;
  max-height: 120px;
  overflow: auto;
}

.foot-note {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.8rem;
  font-size: 0.9rem;
  background: #d9e2ef50;
  padding: 0.8rem 1.5rem;
  border-radius: 60px;
  color: #2c3e5c;
  flex-wrap: wrap;
  gap: 1rem;
}

.clear-all {
  background: #1e293b;
  color: white;
  border: none;
  padding: 0.5rem 1.8rem;
  border-radius: 40px;
  font-weight: 500;
  cursor: pointer;
  transition: 0.15s;
  border: 1px solid #334155;
}

.clear-all:hover {
  background: #0f172a;
}

hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, #a0b8d0, transparent);
  margin: 0.8rem 0 1.2rem;
}

.small-hint {
  color: #5e6f8d;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.4rem;
}