/* ═══════════════════════════════════════════════════
   Smart World Lab — Interactive Lab Tour
   lab-tour/lab-tour.css
═══════════════════════════════════════════════════ */

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

:root {
  --bg:        #020817;
  --surface:   #0e1628;
  --surface2:  #151f38;
  --border:    rgba(99,102,241,0.22);
  --primary:   #6366f1;
  --cyan:      #06b6d4;
  --green:     #10b981;
  --amber:     #f59e0b;
  --pink:      #ec4899;
  --purple:    #8b5cf6;
  --red:       #ef4444;
  --text:      #e2e8f0;
  --muted:     rgba(180,190,220,0.6);
  --header-h:  60px;
  --sidebar-w: 230px;
  --detail-w:  340px;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  overflow: hidden;
}

/* ── HEADER ── */
.lt-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: rgba(2,8,23,0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.4rem;
  z-index: 100;
  gap: 1rem;
}
.lt-back {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  transition: color 0.2s;
  white-space: nowrap;
}
.lt-back:hover { color: #fff; }
.lt-header-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.1rem;
}
.lt-tag {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.lt-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
}
.lt-header-right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.lt-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.9rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.lt-btn:hover, .lt-btn--active {
  border-color: var(--primary);
  color: #fff;
  background: rgba(99,102,241,0.15);
}

/* ── MAIN LAYOUT ── */
.lt-main {
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0; bottom: 0;
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: 1fr;
}

/* ── SIDEBAR ── */
.lt-sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-bottom: 1rem;
}
.lt-sidebar::-webkit-scrollbar { width: 4px; }
.lt-sidebar::-webkit-scrollbar-track { background: transparent; }
.lt-sidebar::-webkit-scrollbar-thumb { background: rgba(99,102,241,0.3); border-radius: 4px; }
.lt-sidebar-title {
  padding: 1rem 1.1rem 0.6rem;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.4rem;
}
.lt-legend-list {
  list-style: none;
  flex: 1;
}
.lt-legend-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.52rem 1.1rem;
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: all 0.18s;
  font-size: 0.78rem;
  color: var(--muted);
}
.lt-legend-item:hover {
  background: rgba(99,102,241,0.07);
  color: #fff;
  border-left-color: var(--primary);
}
.lt-legend-item.active {
  background: rgba(99,102,241,0.12);
  color: #fff;
  border-left-color: var(--primary);
}
.lt-legend-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--dot-clr, var(--primary));
  box-shadow: 0 0 6px var(--dot-clr, var(--primary));
}
.lt-legend-num {
  margin-left: auto;
  font-size: 0.62rem;
  background: rgba(255,255,255,0.06);
  border-radius: 4px;
  padding: 0.1rem 0.4rem;
  color: var(--muted);
}
.lt-sidebar-footer {
  padding: 0.8rem 1.1rem 0;
  font-size: 0.7rem;
  color: rgba(180,190,220,0.4);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  border-top: 1px solid var(--border);
  margin-top: 0.4rem;
}

/* ── MAP WRAP ── */
.lt-map-wrap {
  position: relative;
  overflow: hidden;
  background: #060c1c;
  cursor: grab;
  user-select: none;
}
.lt-map-wrap:active { cursor: grabbing; }
.lt-map-inner {
  position: absolute;
  top: 0; left: 0;
  transform-origin: 0 0;
  will-change: transform;
}
.lt-floorplan {
  display: block;
  max-width: none;
  pointer-events: none;
}
.lt-hint {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(2,8,23,0.78);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.7rem;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  white-space: nowrap;
  pointer-events: none;
  transition: opacity 0.4s;
}
.lt-hint.hidden { opacity: 0; }

/* ── HOTSPOT PINS ── */
.lt-pins {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.lt-pin {
  position: absolute;
  pointer-events: all;
  transform: translate(-50%, -100%);
  cursor: pointer;
  z-index: 10;
}
.lt-pin-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  animation: pinDrop 0.5s cubic-bezier(0.34,1.56,0.64,1) both;
}
.lt-pin-inner:hover .lt-pin-bubble { opacity: 1; transform: translateY(-4px) scale(1.05); }
.lt-pin-icon {
  width: 36px;
  height: 36px;
  border-radius: 50% 50% 50% 4px;
  background: var(--pin-clr, var(--primary));
  border: 2.5px solid rgba(255,255,255,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: #fff;
  box-shadow: 0 4px 20px color-mix(in srgb, var(--pin-clr, var(--primary)) 60%, transparent),
              0 0 0 0 var(--pin-clr, var(--primary));
  transition: box-shadow 0.25s, transform 0.2s;
  animation: pinPulse 3s ease-in-out infinite;
}
.lt-pin:hover .lt-pin-icon,
.lt-pin.active .lt-pin-icon {
  transform: scale(1.18);
  box-shadow: 0 6px 28px color-mix(in srgb, var(--pin-clr, var(--primary)) 80%, transparent),
              0 0 0 6px color-mix(in srgb, var(--pin-clr, var(--primary)) 20%, transparent);
  animation: none;
}
.lt-pin.active .lt-pin-icon {
  background: #fff;
  color: var(--pin-clr, var(--primary));
}
.lt-pin-tip {
  width: 2px;
  height: 8px;
  background: var(--pin-clr, var(--primary));
  opacity: 0.7;
}
/* small label shown on hover */
.lt-pin-bubble {
  position: absolute;
  bottom: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(10,15,36,0.92);
  border: 1px solid color-mix(in srgb, var(--pin-clr, var(--primary)) 50%, transparent);
  color: #fff;
  font-size: 0.62rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 5px;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.18s, transform 0.18s;
  pointer-events: none;
}

@keyframes pinDrop {
  from { opacity: 0; transform: translateY(-24px) scale(0.6); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes pinPulse {
  0%, 100% { box-shadow: 0 4px 20px color-mix(in srgb, var(--pin-clr,var(--primary)) 60%, transparent), 0 0 0 0 color-mix(in srgb, var(--pin-clr,var(--primary)) 40%, transparent); }
  50%       { box-shadow: 0 4px 28px color-mix(in srgb, var(--pin-clr,var(--primary)) 70%, transparent), 0 0 0 8px color-mix(in srgb, var(--pin-clr,var(--primary)) 0%, transparent); }
}

/* staggered entrance delay */
.lt-pin:nth-child(1)  .lt-pin-inner { animation-delay: 0.05s; }
.lt-pin:nth-child(2)  .lt-pin-inner { animation-delay: 0.10s; }
.lt-pin:nth-child(3)  .lt-pin-inner { animation-delay: 0.15s; }
.lt-pin:nth-child(4)  .lt-pin-inner { animation-delay: 0.20s; }
.lt-pin:nth-child(5)  .lt-pin-inner { animation-delay: 0.25s; }
.lt-pin:nth-child(6)  .lt-pin-inner { animation-delay: 0.30s; }
.lt-pin:nth-child(7)  .lt-pin-inner { animation-delay: 0.35s; }
.lt-pin:nth-child(8)  .lt-pin-inner { animation-delay: 0.40s; }
.lt-pin:nth-child(9)  .lt-pin-inner { animation-delay: 0.45s; }
.lt-pin:nth-child(10) .lt-pin-inner { animation-delay: 0.50s; }
.lt-pin:nth-child(11) .lt-pin-inner { animation-delay: 0.55s; }
.lt-pin:nth-child(12) .lt-pin-inner { animation-delay: 0.60s; }
.lt-pin:nth-child(13) .lt-pin-inner { animation-delay: 0.65s; }

/* ── DETAIL PANEL ── */
.lt-detail {
  position: fixed;
  top: var(--header-h);
  right: 0;
  width: var(--detail-w);
  height: calc(100vh - var(--header-h));
  background: var(--surface);
  border-left: 1px solid var(--border);
  padding: 1.8rem 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
  overflow-y: auto;
  z-index: 50;
}
.lt-detail.open {
  transform: translateX(0);
}
.lt-detail-close {
  position: absolute;
  top: 1rem; right: 1rem;
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  transition: all 0.18s;
}
.lt-detail-close:hover { border-color: var(--primary); color: #fff; }
.lt-detail-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #fff;
  flex-shrink: 0;
  animation: iconPop 0.4s cubic-bezier(0.34,1.56,0.64,1) both;
}
@keyframes iconPop {
  from { transform: scale(0.5) rotate(-10deg); opacity: 0; }
  to   { transform: scale(1) rotate(0); opacity: 1; }
}
.lt-detail-zone {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.lt-detail-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  animation: slideUp 0.35s ease both;
}
.lt-detail-desc {
  font-size: 0.84rem;
  color: rgba(180,190,220,0.75);
  line-height: 1.7;
  animation: slideUp 0.35s 0.05s ease both;
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.lt-detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  animation: slideUp 0.35s 0.1s ease both;
}
.lt-tag-chip {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  border: 1px solid var(--chip-clr, var(--border));
  color: var(--chip-clr, var(--muted));
  background: color-mix(in srgb, var(--chip-clr, var(--primary)) 10%, transparent);
}
.lt-detail-specs {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  animation: slideUp 0.35s 0.15s ease both;
}
.lt-spec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.77rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.lt-spec-row:last-child { border-bottom: none; }
.lt-spec-key { color: var(--muted); }
.lt-spec-val { font-weight: 600; color: #fff; }

.lt-detail-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.lt-nav-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.9rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
}
.lt-nav-btn:hover { border-color: var(--primary); color: #fff; }
.lt-nav-count {
  font-size: 0.75rem;
  color: var(--muted);
}

/* ── ZONE FLASH ── */
.lt-zone-flash {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 200;
  opacity: 0;
}
.lt-zone-flash.flash {
  animation: zoneFlash 0.5s ease-out forwards;
}
@keyframes zoneFlash {
  0%   { opacity: 0.18; }
  100% { opacity: 0; }
}

/* ── SCROLLBAR ── */
.lt-detail::-webkit-scrollbar { width: 4px; }
.lt-detail::-webkit-scrollbar-track { background: transparent; }
.lt-detail::-webkit-scrollbar-thumb { background: rgba(99,102,241,0.3); border-radius: 4px; }

/* ── ZOOM CONTROLS ── */
.lt-zoom-btns {
  position: absolute;
  bottom: 56px;
  right: 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 20;
}
.lt-zoom-btn {
  width: 34px; height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(2,8,23,0.85);
  backdrop-filter: blur(8px);
  color: var(--muted);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.18s;
}
.lt-zoom-btn:hover { border-color: var(--primary); color: #fff; }

/* ── PROCESS MENU ── */
.lt-process {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 10px;
  z-index: 22;
  background: rgba(2,8,23,0.86);
  border: 1px solid var(--border);
  border-radius: 14px;
  backdrop-filter: blur(10px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.4);
  overflow: hidden;
  transform: translateY(0);
  transition: transform 0.28s, opacity 0.28s;
}

.lt-process-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  padding: 0.45rem 0.7rem;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  background: linear-gradient(90deg, rgba(99,102,241,0.12), rgba(6,182,212,0.08));
}

.lt-process-head strong {
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(225,232,255,0.88);
}

#processStatus {
  font-size: 0.65rem;
  color: rgba(180,190,220,0.78);
}

.lt-process-steps {
  display: grid;
  grid-template-columns: repeat(8, minmax(94px, 1fr));
  gap: 0.45rem;
  padding: 0.55rem;
}

.lt-step {
  position: relative;
  border: 1px solid rgba(255,255,255,0.1);
  background: linear-gradient(180deg, rgba(22,34,66,0.72), rgba(11,18,35,0.76));
  border-radius: 10px;
  padding: 0.45rem 0.45rem 0.5rem;
  min-height: 82px;
  cursor: pointer;
  transition: transform 0.22s, border-color 0.22s, box-shadow 0.22s;
}

.lt-step:hover {
  transform: translateY(-3px);
  border-color: var(--step-clr, var(--primary));
}

.lt-step.is-active {
  border-color: var(--step-clr, var(--primary));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--step-clr, var(--primary)) 35%, transparent),
              0 10px 20px color-mix(in srgb, var(--step-clr, var(--primary)) 30%, transparent);
  animation: stepPulse 1.2s ease-in-out infinite;
}

.lt-step::after {
  content: '\f054';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  top: 50%;
  right: -0.52rem;
  transform: translateY(-50%);
  font-size: 0.52rem;
  color: rgba(210,223,255,0.42);
  pointer-events: none;
}

.lt-step:last-child::after {
  display: none;
}

.lt-step.is-active::after {
  color: color-mix(in srgb, var(--step-clr, var(--primary)) 80%, white 15%);
  text-shadow: 0 0 8px color-mix(in srgb, var(--step-clr, var(--primary)) 58%, transparent);
}

.lt-step-num {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.64rem;
  font-weight: 700;
  color: #fff;
  background: color-mix(in srgb, var(--step-clr, var(--primary)) 75%, #111);
  margin-bottom: 0.3rem;
}

.lt-step-title {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.68rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
}

.lt-step-title i {
  color: var(--step-clr, var(--primary));
}

.lt-step-sub {
  margin-top: 0.28rem;
  font-size: 0.6rem;
  color: rgba(180,190,220,0.78);
  line-height: 1.4;
}

@keyframes stepPulse {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-2px); }
}

.lt-feedback-loop {
  position: relative;
  padding: 0 0.72rem 0.58rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  border-top: 1px solid rgba(255,255,255,0.07);
}

.lt-feedback-label {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: rgba(195,205,232,0.78);
  white-space: nowrap;
}

.lt-feedback-track {
  position: relative;
  flex: 1;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(99,102,241,0.28), rgba(6,182,212,0.26), rgba(16,185,129,0.28));
  overflow: hidden;
}

.lt-feedback-pulse {
  position: absolute;
  top: 50%;
  left: -18px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.95) 0%, rgba(147,197,253,0.88) 35%, rgba(147,197,253,0) 72%);
  transform: translateY(-50%);
  filter: drop-shadow(0 0 8px rgba(147,197,253,0.75));
  animation: feedbackRun 3.4s linear infinite;
}

@keyframes feedbackRun {
  0% { left: -18px; }
  100% { left: calc(100% + 18px); }
}

/* ── RESPONSIVE ── */
@media (min-width: 761px) {
  .lt-sidebar {
    display: flex !important;
    visibility: visible;
    opacity: 1;
  }
  .lt-process {
    display: block !important;
    visibility: visible;
    opacity: 1;
  }
}

@media (max-width: 760px) {
  :root { --sidebar-w: 0px; --detail-w: 300px; }
  .lt-sidebar { display: none; }
  .lt-process-steps { grid-template-columns: repeat(4, minmax(90px, 1fr)); }
  .lt-step::after { display: none; }
  .lt-feedback-loop { flex-direction: column; align-items: flex-start; gap: 0.38rem; }
}
@media (max-width: 600px) {
  :root { --detail-w: 100vw; }
  .lt-detail { border-left: none; border-top: 1px solid var(--border); }
  .lt-process { left: 8px; right: 8px; }
  .lt-process-steps { grid-template-columns: repeat(2, minmax(90px, 1fr)); max-height: 182px; overflow-y: auto; }
  .lt-step { min-height: 74px; }
}
@media (prefers-reduced-motion: reduce) {
  .lt-pin-inner, .lt-pin-icon, .lt-detail-title,
  .lt-detail-desc, .lt-detail-tags, .lt-detail-specs,
  .lt-detail-icon { animation: none; }
  .lt-detail { transition: none; }
  .lt-step.is-active,
  .lt-feedback-pulse { animation: none; }
}