/* VPS stats dock — compact dark tiles + ring (kiểu sidebar) */

.sys-dock {
  position: fixed;
  z-index: 900;
  pointer-events: none;
}

.sys-dock-panel {
  pointer-events: auto;
  position: relative;
  display: block;
  width: 100%;
  border: none;
  background: transparent;
  padding: 0;
  cursor: pointer;
  font: inherit;
  color: inherit;
}

.sys-dock-panel:focus-visible {
  outline: 2px solid #38bdf8;
  outline-offset: 3px;
  border-radius: 14px;
}

.sys-dock-bar {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 5px;
  width: 76px;
  padding: 7px 6px;
  border-radius: 14px;
  background: linear-gradient(165deg, #1e293b 0%, #0f172a 55%, #0c1222 100%);
  border: 1px solid rgba(148, 163, 184, 0.14);
  box-shadow:
    0 14px 42px rgba(0, 0, 0, 0.38),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: box-shadow 0.2s;
}

.sys-dock-panel:hover .sys-dock-bar {
  box-shadow:
    0 18px 48px rgba(0, 0, 0, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

.sys-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  padding: 5px 3px 6px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.sys-tile-k {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: #94a3b8;
  line-height: 1.1;
}

.sys-tile-v {
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1.15;
  text-align: center;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sys-tile--cpu { --accent: #38bdf8; }
.sys-tile--ram { --accent: #4ade80; }
.sys-tile--disk { --accent: #fbbf24; }
.sys-tile--down { --accent: #22d3ee; }
.sys-tile--up { --accent: #a78bfa; }

.sys-tile--warn { --accent: #fb923c; }
.sys-tile--danger { --accent: #f87171; }

.sys-tile-v { color: var(--accent, #e2e8f0); }

.sys-ring {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.sys-ring svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.sys-ring-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 3.2;
}

.sys-ring-fg {
  fill: none;
  stroke: var(--accent, #38bdf8);
  stroke-width: 3.2;
  stroke-linecap: round;
  stroke-dasharray: 100.5;
  stroke-dashoffset: 100.5;
  transition: stroke-dashoffset 0.45s ease, stroke 0.2s;
}

.sys-dock-cycle {
  position: absolute;
  top: -5px;
  right: -5px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #2563eb;
  color: #fff;
  font-size: 0.58rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(37, 99, 235, 0.5);
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.15s, transform 0.15s;
}

.sys-dock-panel:hover .sys-dock-cycle,
.sys-dock-panel:focus-visible .sys-dock-cycle {
  opacity: 1;
  transform: scale(1);
}

.sys-dock-note {
  pointer-events: auto;
  margin: 6px 0 0;
  text-align: center;
  font-size: 0.68rem;
  color: #94a3b8;
  line-height: 1.35;
  max-width: min(980px, calc(100vw - 20px));
}

.sys-dock-note a {
  color: #60a5fa;
  text-decoration: none;
  font-weight: 600;
}

.sys-dock-note a:hover { text-decoration: underline; }

/* Bottom: hàng ngang gọn */
.sys-dock--bottom {
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
}

.sys-dock--bottom .sys-dock-bar {
  flex-direction: row;
  width: auto;
  max-width: calc(100vw - 16px);
  overflow-x: auto;
  scrollbar-width: none;
  padding: 6px;
  gap: 5px;
}

.sys-dock--bottom .sys-dock-bar::-webkit-scrollbar { display: none; }

.sys-dock--bottom .sys-tile {
  flex: 0 0 68px;
  min-width: 68px;
}

body.has-sys-dock-bottom .page {
  padding-bottom: 100px;
}

/* Trái / Phải */
.sys-dock--left,
.sys-dock--right {
  top: 50%;
  transform: translateY(-50%);
}

.sys-dock--left { left: 8px; }
.sys-dock--right { right: 8px; }

.sys-dock--left .sys-dock-note,
.sys-dock--right .sys-dock-note {
  display: none;
}

.sys-dock--left .sys-dock-cycle {
  right: auto;
  left: -5px;
}

@media (max-width: 640px) {
  .sys-dock--bottom .sys-tile {
    flex: 0 0 62px;
    min-width: 62px;
  }

  .sys-ring {
    width: 36px;
    height: 36px;
  }

  body.has-sys-dock-bottom .page {
    padding-bottom: 108px;
  }
}