:root {
  color-scheme: dark;
  --bg: #0d0f14;
  --bg-soft: #141821;
  --panel: rgba(255, 255, 255, 0.045);
  --panel-strong: rgba(255, 255, 255, 0.075);
  --border: rgba(255, 255, 255, 0.09);
  --border-hover: rgba(255, 255, 255, 0.18);
  --text: rgba(255, 255, 255, 0.88);
  --muted: rgba(255, 255, 255, 0.55);
  --cyan: #00d4ff;
  --green: #00ff88;
  --red: #ff4757;
  --yellow: #faad14;
  --brand: #ff2442;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", sans-serif;
  background:
    radial-gradient(ellipse 90% 60% at 50% -20%, rgba(0, 212, 255, 0.16), transparent),
    radial-gradient(ellipse 70% 45% at 100% 30%, rgba(0, 255, 136, 0.08), transparent),
    linear-gradient(180deg, #0a0c10, #10141c 45%, #0d0f14);
}

body::before {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.hidden {
  display: none !important;
}

.login-view {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(440px, 100%);
  padding: 36px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 22px;
  background: rgba(16, 20, 28, 0.78);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5), 0 0 80px rgba(0, 212, 255, 0.08);
  backdrop-filter: blur(20px);
  animation: slideIn 0.5s ease-out;
}

.brand-mark {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 16px;
  color: #001117;
  font-weight: 800;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.32);
}

.login-card h1,
.topbar h1,
.panel h2 {
  margin: 0;
}

.login-card p,
.panel p {
  color: var(--muted);
}

.login-card label,
.modal-card label {
  display: grid;
  gap: 8px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 14px;
}

input {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  outline: none;
  background: rgba(255, 255, 255, 0.05);
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

input:hover {
  border-color: var(--border-hover);
}

input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.16);
}

.primary-btn,
.ghost-btn,
.icon-btn {
  border: 0;
  border-radius: 12px;
}

.primary-btn {
  height: 46px;
  padding: 0 18px;
  margin-top: 18px;
  color: #001117;
  font-weight: 700;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  box-shadow: 0 8px 24px rgba(0, 212, 255, 0.18);
  transition: transform 0.2s, box-shadow 0.2s;
}

.primary-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 30px rgba(0, 212, 255, 0.28);
}

.primary-btn.small {
  height: 38px;
  margin-top: 0;
}

.ghost-btn {
  height: 38px;
  padding: 0 14px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
}

.ghost-btn:hover {
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.09);
}

.icon-btn {
  width: 36px;
  height: 36px;
  color: var(--text);
  font-size: 24px;
  background: rgba(255, 255, 255, 0.06);
}

.form-message {
  min-height: 24px;
  margin-top: 14px;
  color: var(--red);
}

.app-shell {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 22px;
  border-right: 1px solid var(--border);
  background: rgba(8, 11, 17, 0.72);
  backdrop-filter: blur(18px);
}

.logo-row {
  display: flex;
  gap: 12px;
  align-items: center;
}

.logo-dot {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--cyan), var(--green));
}

.logo-row strong,
.logo-row span {
  display: block;
}

.logo-row span,
.side-footer span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

nav {
  display: grid;
  gap: 8px;
}

.nav-item {
  height: 42px;
  padding: 0 14px;
  color: var(--muted);
  text-align: left;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
}

.nav-item.active,
.nav-item:hover {
  color: var(--text);
  border-color: rgba(0, 212, 255, 0.24);
  background: rgba(0, 212, 255, 0.08);
}

.side-footer {
  display: grid;
  gap: 12px;
  margin-top: auto;
}

.content {
  padding: 28px;
  animation: slideIn 0.5s ease-out;
}

.topbar,
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.topbar h1 {
  font-size: 28px;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.top-actions {
  display: flex;
  gap: 10px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 24px 0;
}

.stat-card,
.panel {
  border: 1px solid var(--border);
  background: var(--panel);
  backdrop-filter: blur(12px);
}

.stat-card {
  min-height: 112px;
  padding: 18px;
  border-radius: 18px;
}

.stat-card span {
  color: var(--muted);
  font-size: 13px;
}

.stat-card strong {
  display: block;
  margin-top: 12px;
  font-size: 30px;
}

.stat-card.cyan strong {
  color: var(--cyan);
}

.stat-card.green strong {
  color: var(--green);
}

.stat-card.yellow strong {
  color: var(--yellow);
}

.panel {
  margin-bottom: 20px;
  padding: 20px;
  border-radius: 18px;
}

.search-input {
  max-width: 280px;
}

.table-wrap {
  overflow-x: auto;
  margin-top: 16px;
}

table {
  width: 100%;
  min-width: 920px;
  border-collapse: collapse;
}

th,
td {
  padding: 14px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  text-align: left;
  vertical-align: top;
}

th {
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
}

.device-title {
  display: grid;
  gap: 5px;
}

.device-title strong {
  color: var(--text);
}

.device-title span,
.muted {
  color: var(--muted);
  font-size: 12px;
}

.mono-value {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 13px;
  word-break: break-all;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 10px;
  color: var(--cyan);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: 12px;
  background: rgba(0, 212, 255, 0.1);
  font-size: 12px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.danger {
  color: #fff;
  background: rgba(255, 71, 87, 0.14);
  border-color: rgba(255, 71, 87, 0.28);
}

pre {
  min-height: 220px;
  max-height: 420px;
  overflow: auto;
  margin: 16px 0 0;
  padding: 16px;
  color: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(0, 212, 255, 0.12);
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.32);
  white-space: pre-wrap;
}

.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.62);
  backdrop-filter: blur(10px);
  z-index: 10;
}

.modal-card {
  width: min(860px, 100%);
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: #111722;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.55);
}

.modal-header,
.modal-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 18px 0;
}

.form-grid .wide {
  grid-column: 1 / -1;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1000px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  .stats-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .topbar,
  .panel-header {
    align-items: flex-start;
    flex-direction: column;
  }
}