/* ------------------------------------------------------------------ */
/* BASE — mirrors the main site palette exactly                        */
/* ------------------------------------------------------------------ */

:root {
  --bg-primary:     #0a0e14;
  --bg-secondary:   #0f1419;
  --bg-card:        #131920;
  --bg-card-hover:  #161e28;
  --text-primary:   #e6e6e6;
  --text-secondary: #8a8a8a;
  --accent-cyan:    #00ff9f;
  --accent-hover:   #00cc7f;
  --accent-dim:     rgba(0, 255, 159, 0.15);
  --accent-border:  rgba(0, 255, 159, 0.25);

  /* block type colors */
  --color-data:     #00ff9f;
  --color-mirror:   #4da6ff;
  --color-parity:   #ffaa33;
  --color-parity2:  #ff6688;
  --color-empty:    #2a2a2a;

  --font: 'JetBrains Mono', monospace;
  --radius: 4px;
  --transition: 0.2s ease;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font);
  line-height: 1.6;
  min-height: 100vh;
  padding: 2rem 1rem;
}

/* ------------------------------------------------------------------ */
/* LAYOUT                                                              */
/* ------------------------------------------------------------------ */

.page-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

/* ------------------------------------------------------------------ */
/* HEADER                                                              */
/* ------------------------------------------------------------------ */

.page-header {
  margin-bottom: 2.5rem;
}

.back-link {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-decoration: none;
  margin-bottom: 1rem;
  transition: color var(--transition);
}
.back-link:hover { color: var(--accent-cyan); }

.page-title {
  font-size: 1.8rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
}
.page-title span { color: var(--accent-cyan); }

.page-subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ------------------------------------------------------------------ */
/* TABS                                                                */
/* ------------------------------------------------------------------ */

.tabs {
  display: flex;
  gap: 0;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--accent-border);
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 0.6rem 1.25rem;
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.85rem;
  cursor: pointer;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color var(--transition), border-color var(--transition);
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
  color: var(--accent-cyan);
  border-bottom-color: var(--accent-cyan);
}

/* ------------------------------------------------------------------ */
/* VIEWS                                                               */
/* ------------------------------------------------------------------ */

.view.hidden { display: none; }

/* ------------------------------------------------------------------ */
/* RAID CARDS (Visualize)                                              */
/* ------------------------------------------------------------------ */

.raid-cards {
  display: grid;
  gap: 1.5rem;
}

.raid-card {
  background: var(--bg-card);
  border: 1px solid #1e2830;
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color var(--transition), background var(--transition);
}
.raid-card:hover { border-color: var(--accent-border); }

/* Card header */
.raid-card-header {
  cursor: pointer;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid #1e2830;
}
.raid-card-header:hover .raid-name { color: var(--accent-cyan); }

.raid-name-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.15rem;
}

.raid-name {
  font-size: 1.1rem;
  font-weight: 600;
  transition: color var(--transition);
}

.min-disks-badge {
  font-size: 0.68rem;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border: 1px solid #2a3540;
  border-radius: 3px;
  padding: 0.1rem 0.45rem;
  white-space: nowrap;
}

.raid-tagline {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Card body: disks (flexible left) | stats (fixed right column) */
.raid-card-body {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 1.5rem;
  align-items: start;
  margin-bottom: 0.75rem;
}

@media (max-width: 600px) {
  .raid-card-body { grid-template-columns: 1fr; }
}

/* Disk columns — sit inside the left cell, don't stretch to fill it */
.disk-columns-wrapper {
  display: flex;
  gap: 6px;
  overflow-x: auto;
}

.disk-column {
  flex: 0 0 auto;
}

.disk-body {
  background: var(--bg-secondary);
  border: 1px solid #2a3540;
  border-radius: 5px;
  overflow: hidden;
  min-width: 76px;
}

.disk-header-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: 0.55rem 0.4rem 0.45rem;
  border-bottom: 1px solid #2a3540;
}

/* CSS disk icon */
.disk-icon-visual {
  width: 34px;
  height: 24px;
  background: var(--bg-card);
  border: 1px solid #3a4a55;
  border-radius: 3px;
  position: relative;
}
/* connector notch at top */
.disk-icon-visual::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 10px;
  height: 3px;
  background: #3a4a55;
  border-radius: 0 0 2px 2px;
}
/* LED dot bottom-right */
.disk-icon-visual::after {
  content: '';
  position: absolute;
  bottom: 5px;
  right: 5px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #2a3a45;
}

.disk-label {
  font-size: 0.65rem;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.2;
  white-space: nowrap;
}

.disk-blocks {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 4px;
}

/* Blocks */
.block {
  padding: 0.32rem 0.25rem;
  border-radius: 3px;
  font-size: 0.75rem;
  text-align: center;
  cursor: pointer;
  transition: opacity var(--transition), transform var(--transition);
  user-select: none;
  font-weight: 600;
  min-width: 64px;
}
.block:hover {
  opacity: 0.82;
  transform: scale(1.05);
}

.block-data   { background: rgba(0, 255, 159, 0.15); color: var(--color-data);   border: 1px solid rgba(0,255,159,0.28); }
.block-mirror { background: rgba(77, 166, 255, 0.15); color: var(--color-mirror); border: 1px solid rgba(77,166,255,0.28); }
.block-parity { background: rgba(255, 170, 51, 0.15); color: var(--color-parity); border: 1px solid rgba(255,170,51,0.28); }
.block-parity2{ background: rgba(255, 102, 136, 0.15); color: var(--color-parity2); border: 1px solid rgba(255,102,136,0.28); }

/* Stats column — width controlled by grid-template-columns above */
.raid-stats {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.stat.clickable {
  cursor: pointer;
  padding: 0.3rem 0.5rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition);
}
.stat.clickable:hover {
  background: var(--accent-dim);
  border-color: var(--accent-border);
}

.stat-label {
  font-size: 0.68rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.stat-value {
  font-size: 0.83rem;
  color: var(--text-primary);
}
.stat-value.danger { color: #ff6688; }
.stat-value.ok     { color: var(--accent-cyan); }

/* Legend — rendered by engine just below the "RAID levels" divider */
.block-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.25rem;
  font-size: 0.75rem;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-secondary);
}
.legend-swatch {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  flex-shrink: 0;
}
.swatch-data    { background: rgba(0, 255, 159, 0.18); border: 1px solid rgba(0,255,159,0.3); }
.swatch-mirror  { background: rgba(77, 166, 255, 0.18); border: 1px solid rgba(77,166,255,0.3); }
.swatch-parity  { background: rgba(255, 170, 51, 0.18); border: 1px solid rgba(255,170,51,0.3); }
.swatch-parity2 { background: rgba(255, 102, 136, 0.18); border: 1px solid rgba(255,102,136,0.3); }

/* ------------------------------------------------------------------ */
/* BUILD VIEW                                                          */
/* ------------------------------------------------------------------ */

.challenge-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.challenge-progress {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.challenge-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-cyan);
}

.challenge-prompt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border-left: 3px solid var(--accent-border);
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* Build area */
.build-area {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 540px) {
  .build-area { grid-template-columns: 1fr; }
}

.disk-pool, .build-zone {
  background: var(--bg-secondary);
  border: 1px dashed #2a3540;
  border-radius: var(--radius);
  padding: 1rem;
  min-height: 140px;
}

.build-zone {
  border-color: var(--accent-border);
  transition: background var(--transition), border-color var(--transition);
}
.build-zone.drag-over {
  background: var(--accent-dim);
  border-color: var(--accent-cyan);
}

.pool-label, .zone-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.pool-disks, .zone-disks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.draggable-disk {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  background: var(--bg-card);
  border: 1px solid #2a3540;
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
  cursor: grab;
  transition: opacity var(--transition), border-color var(--transition);
  font-size: 0.75rem;
  user-select: none;
}
.draggable-disk:hover { border-color: var(--accent-cyan); }
.draggable-disk.dragging { opacity: 0.4; }
.draggable-disk.used { opacity: 0.3; cursor: not-allowed; }
.draggable-disk.in-zone {
  border-color: var(--accent-cyan);
  background: var(--accent-dim);
  cursor: pointer;
}

.drag-icon { font-size: 1.1rem; }
.drag-label { color: var(--text-secondary); }

/* RAID selector */
.raid-selector {
  margin-bottom: 1rem;
}

.selector-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.raid-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.raid-pick-btn {
  background: var(--bg-secondary);
  border: 1px solid #2a3540;
  border-radius: var(--radius);
  padding: 0.4rem 0.85rem;
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--transition);
}
.raid-pick-btn:hover { border-color: var(--accent-cyan); color: var(--text-primary); }
.raid-pick-btn.selected {
  background: var(--accent-dim);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* Actions */
.build-actions {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.btn {
  font-family: var(--font);
  font-size: 0.82rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  cursor: pointer;
  border: none;
  transition: all var(--transition);
}
.btn-primary {
  background: var(--accent-cyan);
  color: var(--bg-primary);
  font-weight: 600;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary {
  background: transparent;
  border: 1px solid #2a3540;
  color: var(--text-secondary);
}
.btn-secondary:hover { border-color: var(--accent-cyan); color: var(--text-primary); }
.btn-ghost {
  background: transparent;
  border: 1px solid #2a3540;
  color: var(--text-secondary);
}
.btn-ghost:hover { border-color: var(--accent-border); color: var(--text-primary); }

/* Feedback */
.build-feedback {
  padding: 1rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  line-height: 1.6;
  margin-bottom: 1rem;
}
.build-feedback.hidden { display: none; }
.build-feedback.success {
  background: rgba(0,255,159,0.08);
  border: 1px solid rgba(0,255,159,0.3);
  color: var(--text-primary);
}
.build-feedback.error {
  background: rgba(255,102,136,0.08);
  border: 1px solid rgba(255,102,136,0.3);
  color: var(--text-primary);
}
.build-feedback.hint {
  background: rgba(255,170,51,0.08);
  border: 1px solid rgba(255,170,51,0.3);
  color: var(--text-primary);
}

.result-stat {
  display: inline-block;
  margin-right: 1.5rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.result-stat strong { color: var(--accent-cyan); }

/* Challenge nav */
.challenge-nav {
  display: flex;
  gap: 0.75rem;
}

/* ------------------------------------------------------------------ */
/* POPUP OVERLAY                                                        */
/* ------------------------------------------------------------------ */

#popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}
#popup-overlay.visible {
  opacity: 1;
  pointer-events: all;
}
#popup-overlay.hidden { display: none; }

.popup-box {
  background: var(--bg-card);
  border: 1px solid var(--accent-border);
  border-radius: 6px;
  padding: 1.5rem;
  max-width: 480px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
}

.popup-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 1rem;
  padding-right: 2rem;
}

#popup-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  transition: color var(--transition);
}
#popup-close:hover { color: var(--text-primary); }

.popup-summary {
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.65;
}

.popup-detail {
  font-size: 0.83rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.65;
}

.popup-list-section {
  margin-bottom: 0.75rem;
}

.popup-list-label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.popup-body ul {
  list-style: none;
  padding: 0;
}
.popup-body li {
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: 0.15rem 0;
  line-height: 1.5;
}
.popup-body li::before {
  content: '— ';
  color: var(--accent-border);
}

.popup-body p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* KaTeX formula rendering */
.popup-body .katex-display {
  margin: 0.75rem 0;
  overflow-x: auto;
}
.popup-body .katex {
  font-size: 1rem;
  color: var(--text-primary);
}

/* ------------------------------------------------------------------ */
/* FOOTER NOTE                                                          */
/* ------------------------------------------------------------------ */

.page-footer {
  margin-top: 3rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  border-top: 1px solid #1e2830;
  padding-top: 1rem;
}
.page-footer a {
  color: var(--accent-cyan);
  text-decoration: none;
}
.page-footer a:hover { color: var(--accent-hover); }

/* ------------------------------------------------------------------ */
/* INTRO SECTION                                                        */
/* ------------------------------------------------------------------ */

.intro-section,
.kb-section {
  margin-bottom: 2.5rem;
}

.intro-headline {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.intro-summary {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

.intro-concepts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 600px) {
  .intro-concepts { grid-template-columns: 1fr; }
}

.concept-block {
  background: var(--bg-secondary);
  border: 1px solid #1e2830;
  border-radius: var(--radius);
  padding: 1rem;
}

.concept-title {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.concept-body {
  font-size: 0.83rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ------------------------------------------------------------------ */
/* ACCORDION                                                            */
/* ------------------------------------------------------------------ */

.accordion-group {
  margin-bottom: 1.25rem;
}

.accordion-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.accordion {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 0.5rem;
}

.accordion-item {
  background: var(--bg-secondary);
  border: 1px solid #1e2830;
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}
.accordion-item[open] {
  border-color: var(--accent-border);
}

.accordion-header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.accordion-header::-webkit-details-marker { display: none; }
.accordion-header:hover .accordion-term { color: var(--accent-cyan); }

.accordion-term {
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  transition: color var(--transition);
  min-width: 140px;
}

.accordion-short {
  font-size: 0.78rem;
  color: var(--text-secondary);
  flex: 1;
}

.accordion-arrow {
  font-size: 0.7rem;
  color: var(--text-secondary);
  transition: transform 0.2s ease;
  margin-left: auto;
}
.accordion-item[open] .accordion-arrow {
  transform: rotate(90deg);
}

.accordion-body {
  padding: 0 1rem 0.85rem 1rem;
  font-size: 0.83rem;
  color: var(--text-secondary);
  line-height: 1.75;
  border-top: 1px solid #1e2830;
  padding-top: 0.75rem;
}

/* ------------------------------------------------------------------ */
/* SECTION DIVIDER                                                      */
/* ------------------------------------------------------------------ */

.section-divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 2rem 0 1.5rem;
  color: var(--text-secondary);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.section-divider::before,
.section-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: #1e2830;
}

/* ------------------------------------------------------------------ */
/* ANIMATE BUTTON                                                        */
/* ------------------------------------------------------------------ */

.btn-animate {
  background: none;
  border: 1px solid #2a3540;
  border-radius: var(--radius);
  padding: 0.3rem 0.75rem;
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.75rem;
  cursor: pointer;
  margin-top: 0.5rem;
  transition: all var(--transition);
}
.btn-animate:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}
.btn-animate:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  border-color: #2a3540;
  color: var(--text-secondary);
}

/* ------------------------------------------------------------------ */
/* BLOCK ANIMATION                                                      */
/* ------------------------------------------------------------------ */

@keyframes blockFlash {
  0%   { opacity: 0.2; transform: scale(1);    }
  40%  { opacity: 1;   transform: scale(1.10); }
  100% { opacity: 1;   transform: scale(1);    }
}

.block.dim      { opacity: 0.18; }
.block.lighting { animation: blockFlash 0.28s ease forwards; }
.block.lit      { opacity: 1; }

/* ------------------------------------------------------------------ */
/* STATE MESSAGES                                                       */
/* ------------------------------------------------------------------ */

.state-msg {
  font-size: 0.85rem;
  padding: 1rem 0;
}
.state-msg.loading { color: var(--text-secondary); font-style: italic; }
.state-msg.error   { color: #ff6688; }

/* ------------------------------------------------------------------ */
/* UTILITIES                                                            */
/* ------------------------------------------------------------------ */
.hidden { display: none !important; }

/* ------------------------------------------------------------------ */
/* RAID 10 — Concentric box overview + detail                          */
/* ------------------------------------------------------------------ */

.r10-overview,
.r10-detail {
  width: 100%;
  transition: opacity 0.18s ease;
}
.r10-fade-out {
  opacity: 0;
  pointer-events: none;
}

/* Outer box: Virtual Disk */
.r10-vdisk-box {
  border: 1px solid var(--accent-border);
  background: rgba(0, 255, 159, 0.03);
  border-radius: var(--radius);
  padding: 8px 8px 8px;
}
.r10-vdisk-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-cyan);
}
.r10-vdisk-tech {
  font-size: 0.62rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

/* Middle row: mirror groups side by side */
.r10-groups-row {
  display: flex;
  gap: 7px;
}
.r10-group-box {
  flex: 1;
  border: 1px solid #2a3540;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: 7px 7px 5px;
}
.r10-group-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-primary);
}
.r10-group-tech {
  font-size: 0.60rem;
  color: var(--text-secondary);
  margin-bottom: 7px;
}

/* Inner row: disk boxes */
.r10-disks-inner {
  display: flex;
  gap: 5px;
  margin-bottom: 6px;
}
.r10-disk-box {
  flex: 1;
  border: 1px solid #3a4a55;
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 5px 2px;
  text-align: center;
  font-size: 0.68rem;
  color: var(--text-secondary);
}

/* Explore link */
.r10-explore {
  display: block;
  text-align: right;
  font-size: 0.62rem;
  color: var(--accent-cyan);
  opacity: 0.5;
  cursor: pointer;
  transition: opacity var(--transition);
  user-select: none;
}
.r10-explore:hover { opacity: 1; }

/* Pulse animations */
@keyframes r10PulseOuter {
  0%   { border-color: var(--accent-border); box-shadow: none; }
  45%  { border-color: var(--accent-cyan); box-shadow: 0 0 8px rgba(0,255,159,0.3); }
  100% { border-color: var(--accent-border); box-shadow: none; }
}
@keyframes r10PulseGroup {
  0%   { border-color: #2a3540; box-shadow: none; }
  45%  { border-color: var(--accent-cyan); box-shadow: 0 0 5px rgba(0,255,159,0.25); }
  100% { border-color: #2a3540; box-shadow: none; }
}
@keyframes r10PulseDisk {
  0%   { border-color: #3a4a55; box-shadow: none; }
  45%  { border-color: var(--accent-cyan); box-shadow: 0 0 3px rgba(0,255,159,0.2); }
  100% { border-color: #3a4a55; box-shadow: none; }
}
.r10-vdisk-box.r10-anim { animation: r10PulseOuter 0.42s ease; }
.r10-group-box.r10-anim  { animation: r10PulseGroup 0.42s ease; }
.r10-disk-box.r10-anim   { animation: r10PulseDisk  0.42s ease; }

/* Detail view */
.r10-detail { display: flex; flex-direction: column; }
.r10-breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.68rem;
  color: var(--text-secondary);
  cursor: pointer;
  margin-bottom: 10px;
  transition: color var(--transition);
  user-select: none;
}
.r10-breadcrumb:hover { color: var(--accent-cyan); }
.r10-detail-header {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 0.75rem;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid #1e2830;
}
.r10-detail-span-name { font-weight: 600; color: var(--text-primary); }
.r10-detail-span-tech { font-size: 0.65rem; color: var(--text-secondary); }

/* ------------------------------------------------------------------ */
/* RAID 10 — Mini-tab: fisica / logica                                 */
/* ------------------------------------------------------------------ */

.r10-view-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 10px;
  border-bottom: 1px solid #1e2830;
}

.r10-view-tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 0.25rem 0.65rem;
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.68rem;
  cursor: pointer;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  transition: color var(--transition), border-color var(--transition);
  margin-bottom: -1px;
}
.r10-view-tab-btn:hover { color: var(--text-primary); }
.r10-view-tab-btn.active {
  color: var(--accent-cyan);
  border-bottom-color: var(--accent-cyan);
}

/* ------------------------------------------------------------------ */
/* RAID 10 — Vista fisica: Controller wrapper                          */
/* ------------------------------------------------------------------ */

.r10-controller-box {
  border: 1px solid #2a3540;
  background: transparent;
  border-radius: var(--radius);
  padding: 6px 6px 6px;
}
.r10-controller-label {
  font-size: 0.62rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}

/* Inside fisica, vdisk-box is now the Drive Group */
.r10-controller-box .r10-vdisk-box {
  background: rgba(0, 255, 159, 0.02);
}

@keyframes r10PulseController {
  0%   { border-color: #2a3540; box-shadow: none; }
  45%  { border-color: var(--accent-cyan); box-shadow: 0 0 6px rgba(0,255,159,0.2); }
  100% { border-color: #2a3540; box-shadow: none; }
}
.r10-controller-box.r10-anim { animation: r10PulseController 0.42s ease; }

/* ------------------------------------------------------------------ */
/* RAID 10 — Vista logica                                              */
/* ------------------------------------------------------------------ */

.r10-logical-vdisk {
  border: 1px solid var(--accent-border);
  background: rgba(0, 255, 159, 0.03);
  border-radius: var(--radius);
  padding: 8px;
}
.r10-logical-vdisk-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-cyan);
}
.r10-logical-vdisk-tech {
  font-size: 0.62rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.r10-logical-spans-row {
  display: flex;
  gap: 7px;
}

.r10-logical-span-unit {
  flex: 1;
  border: 1px solid #2a3540;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: 7px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.r10-logical-span-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-primary);
}
.r10-logical-span-detail {
  font-size: 0.60rem;
  color: var(--text-secondary);
}
.r10-logical-span-opaque {
  margin-top: 5px;
  height: 26px;
  background: var(--bg-card);
  border: 1px dashed #3a4a55;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.58rem;
  color: var(--text-secondary);
  opacity: 0.55;
  letter-spacing: 0.03em;
}