#tour-wrap {
  pointer-events: none;
  opacity: 0;
  transition: opacity .34s ease;
}
#tour-wrap.t-visible { opacity: 1; }

.tour-ov {
  position: fixed;
  z-index: 99000;
  pointer-events: all;
  background: rgba(0,0,0,.56);
  transition:
    left   .34s cubic-bezier(.4,0,.2,1),
    top    .34s cubic-bezier(.4,0,.2,1),
    width  .34s cubic-bezier(.4,0,.2,1),
    height .34s cubic-bezier(.4,0,.2,1);
  will-change: left, top, width, height;
}
.tour-ov.t-no-tr { transition: none !important; }

#tour-frame {
  position: fixed;
  z-index: 99001;
  pointer-events: none;
  display: none;
  background: transparent;
  border: 2px solid rgba(220,164,78,.9);
  box-shadow:
    0 0 0 3px rgba(220,164,78,.10),
    0 0 18px rgba(220,164,78,.50);
  animation: t-glow 2.4s ease-in-out infinite;
  transition:
    left          .34s cubic-bezier(.4,0,.2,1),
    top           .34s cubic-bezier(.4,0,.2,1),
    width         .34s cubic-bezier(.4,0,.2,1),
    height        .34s cubic-bezier(.4,0,.2,1),
    border-radius .34s cubic-bezier(.4,0,.2,1);
  will-change: left, top, width, height;
}
#tour-frame.t-no-tr { transition: none !important; }

@keyframes t-glow {
  0%,100% { box-shadow: 0 0 0 3px rgba(220,164,78,.10), 0 0 16px rgba(220,164,78,.44); }
  50%     { box-shadow: 0 0 0 5px rgba(220,164,78,.18), 0 0 34px rgba(220,164,78,.64), 0 0 60px rgba(183,77,63,.08); }
}

.tour-pulse { animation: t-pulse 1.9s ease-in-out 2 !important; }
@keyframes t-pulse {
  0%,100% { box-shadow: none; }
  50%     { box-shadow: 0 0 0 7px rgba(220,164,78,.22), 0 0 20px rgba(220,164,78,.16); }
}

.tour-demo-flash { animation: t-flash .5s ease-in-out !important; }
@keyframes t-flash {
  0%,100% { transform: scale(1);    filter: none; }
  40%     { transform: scale(1.12); filter: brightness(1.2); }
}

#tour-kbd {
  position: fixed;
  bottom: 18px; left: 50%;
  transform: translateX(-50%);
  z-index: 99200;
  pointer-events: none;
  background: rgba(8,6,16,.80);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  color: rgba(255,255,255,.66);
  font: 500 .68rem/1 'Inter', system-ui, sans-serif;
  padding: .38rem 1.1rem;
  border-radius: 100px;
  white-space: nowrap;
  border: 1px solid rgba(255,255,255,.1);
  animation: t-kbd-in .44s ease both;
  transition: opacity .48s;
}
#tour-kbd.t-out { opacity: 0; }
@keyframes t-kbd-in {
  from { opacity:0; transform: translateX(-50%) translateY(8px); }
  to   { opacity:1; transform: translateX(-50%) translateY(0); }
}
#tour-kbd kbd {
  display: inline-block;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 4px;
  padding: .08rem .34rem;
  font: inherit; font-size: .64rem;
  margin: 0 2px;
}

#tour-popup {
  position: fixed;
  z-index: 99100;
  pointer-events: all;
  width: min(372px, calc(100vw - 20px));
  filter:
    drop-shadow(0 3px 10px rgba(0,0,0,.09))
    drop-shadow(0 16px 48px rgba(0,0,0,.20));
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

#tour-popup[data-side="top"]::before {
  content: '';
  position: absolute;
  top: -9px; left: 50%;
  transform: translateX(-50%);
  border: 9px solid transparent;
  border-bottom: 9px solid #fff;
  border-top: none;
  pointer-events: none; z-index: 1;
}
#tour-popup[data-side="bottom"]::before {
  content: '';
  position: absolute;
  bottom: -9px; left: 50%;
  transform: translateX(-50%);
  border: 9px solid transparent;
  border-top: 9px solid #fff;
  border-bottom: none;
  pointer-events: none; z-index: 1;
}

.t-inner {
  border-radius: 20px;
  overflow: hidden; 
  background: #fff;
}

.t-prog { height: 4px; background: #f0e8e6; }
.t-fill {
  height: 100%;
  background: linear-gradient(90deg, #B74D3F 0%, #DCA44E 100%);
  transition: width .44s cubic-bezier(.4,0,.2,1);
  position: relative; overflow: hidden;
}
.t-fill::after {
  content: '';
  position: absolute; top: 0; left: -80%;
  width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.46), transparent);
  animation: t-shimmer 2.2s ease-in-out infinite;
}
@keyframes t-shimmer {
  0%   { left: -80%; }
  100% { left: 160%; }
}

.t-body { padding: .9rem 1.2rem .95rem; }

.t-top { display: flex; align-items: center; gap: .72rem; margin-bottom: .6rem; }

.t-icon-box {
  flex-shrink: 0;
  width: 50px; height: 50px;
  border-radius: 14px;
  background: linear-gradient(135deg, #fef3f1, #fff9ef);
  border: 1.5px solid rgba(183,77,63,.1);
  box-shadow: 0 2px 10px rgba(183,77,63,.10);
  display: flex; align-items: center; justify-content: center;
  animation: t-icon-pop .42s cubic-bezier(.34,1.56,.64,1) both;
}
.t-icon-box svg { width: 24px; height: 24px; stroke: #B74D3F; flex-shrink: 0; }
@keyframes t-icon-pop {
  from { transform: scale(.5) rotate(-14deg); opacity: 0; }
  to   { transform: scale(1)  rotate(0);      opacity: 1; }
}

.t-meta { flex: 1; min-width: 0; }
.t-step {
  font-size: .61rem; font-weight: 700;
  color: #DCA44E; letter-spacing: .08em;
  text-transform: uppercase; margin-bottom: .12rem;
}
.t-title {
  font-size: 1rem; font-weight: 800;
  color: #1a1a1a; line-height: 1.24; letter-spacing: -.01em;
}

.t-desc {
  font-size: .81rem; color: #5a5a5a;
  line-height: 1.68; margin-bottom: .82rem;
}
.t-desc b    { color: #1a1a1a; font-weight: 700; }
.t-desc span { vertical-align: middle; }

.t-badge-lec, .t-badge-pr, .t-badge-lab {
  display: inline-block;
  font-size: .66rem; font-weight: 800; letter-spacing: .04em;
  padding: .1em .44em; border-radius: 5px;
  vertical-align: middle; margin: 0 1px;
}
.t-badge-lec { background: rgba(183,77,63,.12); color: #B74D3F; }
.t-badge-pr  { background: rgba(39,174,96,.12);  color: #27AE60; }
.t-badge-lab { background: rgba(41,128,185,.12); color: #2980B9; }

.t-dots {
  display: flex; gap: 5px;
  justify-content: center; margin-bottom: .78rem;
  flex-wrap: wrap;
}
.t-dot {
  height: 7px; width: 7px; border-radius: 50%;
  background: #e8dbd9; border: none; padding: 0; cursor: pointer;
  transition: background .22s, transform .22s, width .26s, border-radius .26s;
  flex-shrink: 0;
}
.t-dot.on   { background: #B74D3F; width: 22px; border-radius: 4px; }
.t-dot.done { background: #DCA44E; opacity: .58; }
.t-dot:hover:not(.on) { background: #c5b0ad; transform: scale(1.38); }

.t-actions {
  display: flex; align-items: center;
  justify-content: space-between; gap: .5rem;
}
.t-btns { display: flex; gap: .4rem; margin-left: auto; }

.t-fwd {
  display: inline-flex; align-items: center; gap: .28rem;
  background: linear-gradient(135deg, #B74D3F 0%, #8C3530 100%);
  color: #fff; border: none; border-radius: 10px;
  padding: .52rem 1.1rem;
  font: 700 .82rem/1 'Inter', inherit;
  cursor: pointer; white-space: nowrap;
  box-shadow: 0 2px 10px rgba(183,77,63,.34);
  transition: opacity .14s, transform .14s, box-shadow .14s;
}
.t-fwd svg    { flex-shrink: 0; stroke: #fff; }
.t-fwd:hover  { opacity: .9; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(183,77,63,.44); }
.t-fwd:active { transform: translateY(0); }

.t-back {
  display: inline-flex; align-items: center; gap: .22rem;
  background: #f3edec; color: #666; border: none; border-radius: 10px;
  padding: .52rem .85rem; font: 600 .79rem/1 'Inter', inherit;
  cursor: pointer; white-space: nowrap; transition: background .14s;
}
.t-back svg   { stroke: #888; }
.t-back:hover { background: #ece3e2; }

.t-skip {
  background: none; border: none; color: #c8b8b6;
  font: .73rem/1 'Inter', inherit; cursor: pointer;
  padding: .4rem 0; white-space: nowrap;
  transition: color .14s; flex-shrink: 0;
}
.t-skip:hover { color: #999; }

#tour-popup.t-mob {
  position: fixed !important;
  left: 0 !important; right: 0 !important;
  bottom: 0 !important; top: auto !important;
  width: 100% !important; max-width: 100% !important;
  filter: none;
}
#tour-popup.t-mob .t-inner {
  border-radius: 22px 22px 0 0;
  box-shadow: 0 -8px 30px rgba(0,0,0,.18), 0 0 0 1px rgba(0,0,0,.04);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

#tour-popup.t-mob .t-body::before {
  content: '';
  display: block;
  width: 38px; height: 4px;
  background: #d8d0ce; border-radius: 2px;
  margin: -4px auto 11px;
}

#tour-popup.t-mob::before,
#tour-popup.t-mob::after { display: none !important; }

#tour-popup.t-mob.t-mob-float {
  bottom: auto !important;
  padding-bottom: 0 !important;
}
#tour-popup.t-mob.t-mob-float .t-inner {
  border-radius: 20px !important;
  padding-bottom: 0 !important;
  box-shadow: 0 4px 24px rgba(0,0,0,.20), 0 0 0 1px rgba(0,0,0,.05) !important;
}
#tour-popup.t-mob.t-mob-float .t-body::before { display: none; }

#tour-wrap.t-dark .tour-ov { background: rgba(0,0,0,.70); }

#tour-wrap.t-dark #tour-popup[data-side="top"]::before    { border-bottom-color: #1b1628; }
#tour-wrap.t-dark #tour-popup[data-side="bottom"]::before { border-top-color:    #1b1628; }

#tour-wrap.t-dark .t-inner  { background: #1b1628; }
#tour-wrap.t-dark .t-prog   { background: #2c2240; }
#tour-wrap.t-dark .t-fill   { background: linear-gradient(90deg, #ff4d6d, #ffd166); }

#tour-wrap.t-dark .t-icon-box {
  background: linear-gradient(135deg, #2e2038, #261b38);
  border-color: rgba(255,77,109,.20);
  box-shadow: 0 2px 12px rgba(255,77,109,.18);
}
#tour-wrap.t-dark .t-icon-box svg { stroke: #ff7090; }

#tour-wrap.t-dark .t-step   { color: #ffd166; }
#tour-wrap.t-dark .t-title  { color: #f0eaf8; }
#tour-wrap.t-dark .t-desc   { color: #9a8fa8; }
#tour-wrap.t-dark .t-desc b { color: #e8ddf0; }

#tour-wrap.t-dark .t-dot                  { background: #3a2e4a; }
#tour-wrap.t-dark .t-dot.on               { background: #ff4d6d; }
#tour-wrap.t-dark .t-dot.done             { background: #ffd166; opacity: .48; }
#tour-wrap.t-dark .t-dot:hover:not(.on)   { background: #4d4060; }

#tour-wrap.t-dark .t-fwd        { background: linear-gradient(135deg,#ff4d6d,#c03050); box-shadow: 0 2px 12px rgba(255,77,109,.38); }
#tour-wrap.t-dark .t-back       { background: #2c2240; color: #9a8fa8; }
#tour-wrap.t-dark .t-back:hover { background: #382d50; }
#tour-wrap.t-dark .t-back svg   { stroke: #9a8fa8; }
#tour-wrap.t-dark .t-skip       { color: #4a3d5a; }
#tour-wrap.t-dark .t-skip:hover { color: #7a6a8a; }

#tour-wrap.t-dark #tour-popup.t-mob .t-body::before { background: #3a2e4a; }
#tour-wrap.t-dark #tour-popup.t-mob .t-inner {
  box-shadow: 0 -8px 30px rgba(0,0,0,.50), 0 0 0 1px rgba(255,255,255,.06);
}

#tour-wrap.t-dark .t-badge-lec { background: rgba(255,77,109,.18); color: #ff7090; }
#tour-wrap.t-dark .t-badge-pr  { background: rgba(0,229,160,.15);  color: #00e5a0; }
#tour-wrap.t-dark .t-badge-lab { background: rgba(77,200,255,.15); color: #4dc8ff; }

#tour-wrap.t-dark #tour-frame {
  border-color: rgba(255,77,109,.80);
  animation-name: t-glow-dark;
}
@keyframes t-glow-dark {
  0%,100% { box-shadow: 0 0 0 3px rgba(255,77,109,.10), 0 0 18px rgba(255,77,109,.44); }
  50%     { box-shadow: 0 0 0 5px rgba(255,77,109,.18), 0 0 38px rgba(255,77,109,.66), 0 0 72px rgba(77,200,255,.08); }
}