:root {
  --bg: #08111b;
  --bg-accent: #12324a;
  --panel: rgba(7, 17, 27, 0.84);
  --panel-border: rgba(148, 193, 219, 0.16);
  --text: #edf7ff;
  --muted: #8cb3cc;
  --primary: #45d0ff;
  --primary-strong: #00b7ff;
  --success: #34d399;
  --warning: #fbbf24;
  --warning-soft: #f59e0b;
  --danger-strong: #ef4444;
  --good: #22c55e;
  --high: #38bdf8;
  --danger: #fb7185;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(69, 208, 255, 0.18), transparent 30%),
    radial-gradient(circle at top right, rgba(17, 120, 135, 0.22), transparent 25%),
    linear-gradient(160deg, var(--bg) 0%, #03070c 100%);
  min-height: 100vh;
}

.background {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.65), transparent);
  pointer-events: none;
}

.app-shell {
  width: 100vw;
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

.auth-shell {
  position: fixed;
  inset: 0;
  display: none;
  place-items: center;
  padding: 24px;
  z-index: 5;
}

body.show-login .auth-shell {
  display: grid;
}

body.show-login .dashboard-frame {
  display: none;
}

.auth-panel {
  width: min(100%, 460px);
  padding: 32px;
  border-radius: 28px;
  border: 1px solid rgba(148, 193, 219, 0.16);
  background:
    linear-gradient(180deg, rgba(10, 24, 36, 0.94), rgba(4, 10, 16, 0.96)),
    radial-gradient(circle at top left, rgba(69, 208, 255, 0.14), transparent 30%);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.auth-kicker {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  color: var(--primary);
}

.auth-title {
  margin: 0;
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 0.95;
}

.auth-copy {
  margin: 14px 0 0;
  color: var(--muted);
  max-width: 32ch;
}

.auth-form {
  margin-top: 26px;
  display: grid;
  gap: 14px;
}

.auth-form label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

.auth-submit {
  margin-top: 8px;
  width: 100%;
  justify-content: center;
}

.auth-error {
  margin: 0;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(251, 113, 133, 0.25);
  background: rgba(239, 68, 68, 0.12);
  color: #ffd5dc;
  font-size: 0.88rem;
}

.dashboard-frame {
  width: 100%;
  min-height: 100vh;
  height: 100vh;
  background:
    linear-gradient(180deg, rgba(10, 21, 33, 0.92), rgba(4, 10, 16, 0.96)),
    radial-gradient(circle at top left, rgba(69, 208, 255, 0.12), transparent 24%);
  padding: 10px;
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(16px);
  border-radius: 20px;
  padding: 16px;
  box-shadow: var(--shadow);
  margin-bottom: 12px;
}

.dashboard-panel {
  margin-bottom: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 0;
  height: 100%;
  padding: 10px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.panel-meta,
.account-label,
.device-status,
.device-count {
  color: var(--muted);
}

.legend {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 0;
  align-items: center;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 0.68rem;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.legend-item::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: currentColor;
}

.legend-offline {
  color: var(--danger);
}

.legend-low {
  color: var(--warning-soft);
}

.legend-medium {
  color: var(--warning);
}

.legend-good {
  color: var(--good);
}

.legend-high {
  color: var(--high);
}

.login-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.login-form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

input {
  border: 1px solid rgba(140, 179, 204, 0.18);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-radius: 14px;
  padding: 14px 16px;
  font: inherit;
}

input:focus {
  outline: 2px solid rgba(69, 208, 255, 0.4);
  border-color: rgba(69, 208, 255, 0.6);
}

.actions {
  display: flex;
  align-items: end;
  gap: 12px;
  flex-wrap: wrap;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  font: inherit;
  cursor: pointer;
  transition: transform 120ms ease, opacity 120ms ease, background 120ms ease;
}

button:hover {
  transform: translateY(-1px);
}

.primary-button {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #04121c;
  font-weight: 700;
}

.secondary-button,
.ghost-button {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.ghost-button {
  padding-inline: 14px;
}

.backpacks-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: repeat(var(--grid-rows, 3), minmax(0, 1fr));
  grid-auto-flow: row;
  gap: 8px;
  align-content: stretch;
  overflow: hidden;
  height: 100%;
  width: 100%;
  min-height: 0;
}

.backpacks-grid > * {
  min-height: 0;
}

.empty-state {
  display: block;
  color: var(--muted);
  padding: 14px 0 8px;
}

.backpack-card {
  border-radius: 18px;
  padding: 10px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
    rgba(4, 13, 20, 0.85);
  border: 1px solid rgba(148, 193, 219, 0.12);
  min-height: 0;
  height: 100%;
  display: grid;
  grid-template-rows: auto 1fr;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
  overflow: hidden;
}

.backpack-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  margin-bottom: 6px;
}

.backpack-account {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.72rem;
}

.live-indicator {
  margin-top: 4px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.live-pulse {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--muted);
  flex: 0 0 auto;
}

.backpack-card.is-live .live-indicator {
  color: #fff5f5;
  background: rgba(239, 68, 68, 0.16);
  border-color: rgba(239, 68, 68, 0.35);
}

.backpack-card.is-live .live-pulse {
  background: #ff4d4d;
  box-shadow: 0 0 0 rgba(255, 77, 77, 0.7);
  animation: livePulse 1.2s infinite;
}

.backpack-card.is-live .live-label::after {
  content: "EN DIRECTO";
}

.backpack-card.is-idle .live-indicator {
  color: var(--muted);
}

.backpack-card.is-idle .live-label::after {
  content: "NO EMITE";
}

.backpack-speed {
  text-align: right;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

.backpack-total-speed {
  display: block;
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
  text-shadow: none;
  background: rgba(3, 10, 16, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 5px 9px;
  min-width: 84px;
  display: inline-flex;
  justify-content: center;
}

.interface-list {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-height: 0;
}

.interface-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  padding: 6px 8px;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  min-height: 0;
}

.interface-main {
  min-width: 0;
  flex: 1 1 auto;
}

.interface-topline {
  display: flex;
  align-items: center;
  gap: 8px;
}

.interface-name,
.interface-status {
  margin: 0;
}

.interface-name {
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1.1;
}

.interface-status {
  font-size: 0.66rem;
  line-height: 1.1;
}

.speed-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--muted);
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.04);
  flex: 0 0 auto;
}

.speed-block {
  min-width: 78px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  gap: 3px;
}

.interface-speed {
  display: block;
  font-size: 0.98rem;
  font-weight: 700;
  color: #ffffff;
  text-shadow: none;
  background: rgba(3, 10, 16, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 4px 7px;
  min-width: 68px;
  display: inline-flex;
  justify-content: center;
}

.speed-label {
  color: var(--muted);
  font-size: 0.6rem;
}

.hidden {
  display: none;
}

.interface-row.speed-offline .speed-dot,
.interface-row.speed-offline .interface-speed,
.backpack-card.speed-offline .backpack-total-speed {
  color: var(--danger);
}

.backpack-card.speed-offline {
  background:
    linear-gradient(180deg, rgba(251, 113, 133, 0.12), rgba(255, 255, 255, 0.02)),
    rgba(4, 13, 20, 0.88);
  border-color: rgba(251, 113, 133, 0.28);
  box-shadow: inset 0 0 0 1px rgba(251, 113, 133, 0.08);
}

.interface-row.speed-none .speed-dot,
.interface-row.speed-none .interface-speed,
.backpack-card.speed-none .backpack-total-speed {
  color: var(--muted);
}

.backpack-card.speed-none {
  background:
    linear-gradient(180deg, rgba(140, 179, 204, 0.08), rgba(255, 255, 255, 0.02)),
    rgba(4, 13, 20, 0.88);
  border-color: rgba(140, 179, 204, 0.18);
}

.interface-row.speed-low {
  background: linear-gradient(90deg, rgba(239, 68, 68, 0.16), rgba(255, 255, 255, 0.03));
}

.interface-row.speed-low .speed-dot,
.interface-row.speed-low .interface-speed,
.backpack-card.speed-low .backpack-total-speed {
  color: var(--warning-soft);
}

.backpack-card.speed-low {
  background:
    linear-gradient(180deg, rgba(245, 158, 11, 0.16), rgba(255, 255, 255, 0.02)),
    rgba(4, 13, 20, 0.88);
  border-color: rgba(245, 158, 11, 0.32);
  box-shadow: inset 0 0 0 1px rgba(245, 158, 11, 0.1);
}

.interface-row.speed-medium {
  background: linear-gradient(90deg, rgba(245, 158, 11, 0.18), rgba(255, 255, 255, 0.03));
}

.interface-row.speed-medium .speed-dot,
.interface-row.speed-medium .interface-speed,
.backpack-card.speed-medium .backpack-total-speed {
  color: var(--warning);
}

.backpack-card.speed-medium {
  background:
    linear-gradient(180deg, rgba(251, 191, 36, 0.18), rgba(255, 255, 255, 0.02)),
    rgba(4, 13, 20, 0.88);
  border-color: rgba(251, 191, 36, 0.32);
  box-shadow: inset 0 0 0 1px rgba(251, 191, 36, 0.1);
}

.interface-row.speed-good {
  background: linear-gradient(90deg, rgba(34, 197, 94, 0.18), rgba(255, 255, 255, 0.03));
}

.interface-row.speed-good .speed-dot,
.interface-row.speed-good .interface-speed,
.backpack-card.speed-good .backpack-total-speed {
  color: var(--good);
}

.backpack-card.speed-good {
  background:
    linear-gradient(180deg, rgba(34, 197, 94, 0.18), rgba(255, 255, 255, 0.02)),
    rgba(4, 13, 20, 0.88);
  border-color: rgba(34, 197, 94, 0.3);
  box-shadow: inset 0 0 0 1px rgba(34, 197, 94, 0.1);
}

.interface-row.speed-high {
  background: linear-gradient(90deg, rgba(56, 189, 248, 0.2), rgba(255, 255, 255, 0.03));
}

.interface-row.speed-high .speed-dot,
.interface-row.speed-high .interface-speed,
.backpack-card.speed-high .backpack-total-speed {
  color: var(--high);
}

.backpack-card.speed-high {
  background:
    linear-gradient(180deg, rgba(56, 189, 248, 0.2), rgba(255, 255, 255, 0.02)),
    rgba(4, 13, 20, 0.88);
  border-color: rgba(56, 189, 248, 0.34);
  box-shadow: inset 0 0 0 1px rgba(56, 189, 248, 0.12);
}

@keyframes livePulse {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(255, 77, 77, 0.75);
  }

  70% {
    transform: scale(1.1);
    box-shadow: 0 0 0 12px rgba(255, 77, 77, 0);
  }

  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(255, 77, 77, 0);
  }
}

@media (max-width: 1100px) {
  .backpacks-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: repeat(var(--grid-rows, 2), minmax(0, 1fr));
    grid-auto-rows: 1fr;
  }
}

@media (max-width: 720px) {
  .auth-shell {
    padding: 14px;
  }

  .auth-panel {
    padding: 24px 18px;
    border-radius: 22px;
  }

  .dashboard-frame,
  .panel {
    padding: 10px;
    border-radius: 18px;
  }

  .backpacks-grid {
    grid-template-columns: 1fr;
    grid-template-rows: none;
    grid-auto-rows: 1fr;
  }

  .interface-row {
    align-items: center;
  }

  .interface-speed,
  .backpack-total-speed {
    font-size: 1rem;
  }

  .backpack-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .backpack-speed,
  .speed-block {
    align-items: flex-start;
  }
}