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

:root {
  --bg: #06080f;
  --surface: #0d1120;
  --surface2: #131828;
  --border: rgba(255, 255, 255, 0.07);
  --border2: rgba(255, 255, 255, 0.15);
  --text: #e2e8f5;
  --muted: #6b7a99;
  --accent: #8b72ff;
  --lilac: #c084fc;
  --blue: #38bdf8;
  --amber: #f59e0b;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

#starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* HEADER */
header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: max(12px, env(safe-area-inset-top)) 22px 12px;
  border-bottom: 1px solid var(--border);
  background: rgba(6, 8, 15, 0.93);
  backdrop-filter: blur(12px);
  flex-shrink: 0;
}

.logo {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.logo em {
  font-style: normal;
  color: var(--accent);
}

.by {
  font-size: 12px;
  color: var(--muted);
  margin-top: 1px;
  font-family: 'JetBrains Mono', monospace;
}

#prog-wrap {
  flex: 1;
  max-width: 260px;
  margin: 0 28px;
}

#prog-bg {
  height: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

#prog-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--lilac));
  border-radius: 2px;
  transition: width 0.5s ease;
  width: 0%;
}

#prog-lbl {
  font-size: 10px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  margin-top: 4px;
}

#counter {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--muted);
}

/* MAIN */
main {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* TRACK WRAP */
#track-wrap {
  flex: 1;
  overflow: hidden;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: stretch;
}

/* CENTER CONTAINER – caps width on large monitors */
#track-center {
  position: relative;
  width: 100%;
  max-width: 780px;
  --axis: calc(50% - 120px);
}

/* TRACK */
#track {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  flex-direction: column-reverse;
  align-items: flex-start;
  transition: transform 0.75s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
  padding: 60px 0;
}

/* vertical center line */
#vline {
  position: absolute;
  left: var(--axis);
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(
    to bottom,
    rgba(139, 114, 255, 0.05),
    var(--border) 8%,
    var(--border) 92%,
    rgba(139, 114, 255, 0.05)
  );
  pointer-events: none;
  z-index: 2;
}

/* SEGMENT */
.seg {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  height: 72px;
  flex-shrink: 0;
  cursor: pointer;
}

.seg:hover .nlabel { color: var(--text); }
.seg.active-seg .nlabel { color: var(--accent); font-weight: 600; }
.seg.active-seg.lil-seg .nlabel { color: var(--lilac); }

/* CONNECTOR */
.conn {
  height: 36px;
  width: 100%;
  flex-shrink: 0;
  position: relative;
}

.conn::after {
  content: '';
  position: absolute;
  left: var(--axis);
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border);
  transform: translateX(-50%);
}

/* NODE DOT */
.ndot {
  position: absolute;
  left: var(--axis);
  top: 50%;
  transform: translate(-50%, -50%);
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--border2);
  background: var(--surface);
  z-index: 4;
  transition: all 0.25s;
  flex-shrink: 0;
}

.ndot::after {
  content: '';
  position: absolute;
  inset: -7px;
  border-radius: 50%;
  border: 1px solid transparent;
  transition: all 0.3s;
}

.seg:hover .ndot {
  border-color: var(--accent);
  background: var(--accent);
  transform: translate(-50%, -50%) scale(1.3);
  box-shadow: 0 0 14px rgba(139, 114, 255, 0.55);
}

.seg:hover .ndot::after { border-color: rgba(139, 114, 255, 0.2); }

.seg.active-seg .ndot {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(139, 114, 255, 0.15), 0 0 20px rgba(139, 114, 255, 0.4);
  transform: translate(-50%, -50%) scale(1.45);
}

.seg.active-seg .ndot::after { border-color: rgba(139, 114, 255, 0.25); }
.seg.visited .ndot { border-color: rgba(139, 114, 255, 0.65); background: rgba(139, 114, 255, 0.38); }
.conn.visited::after { background: rgba(139, 114, 255, 0.3); }
.seg.lil-seg .ndot { border-color: var(--lilac); }

.seg.active-seg.lil-seg .ndot {
  border-color: var(--lilac);
  background: var(--lilac);
  box-shadow: 0 0 0 5px rgba(192, 132, 252, 0.15), 0 0 20px rgba(192, 132, 252, 0.4);
}

/* LABEL */
.nlabel {
  position: absolute;
  left: calc(var(--axis) + 18px);
  top: 50%;
  transform: translateY(-50%);
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
  pointer-events: none;
  transition: color 0.25s;
  background: rgba(6, 8, 15, 0.65);
  padding: 3px 10px;
  border-radius: 4px;
}

.seg.lil-seg.active-seg .nlabel { color: var(--lilac); }

/* NUMBER BADGE */
.nnum {
  position: absolute;
  left: calc(var(--axis) + 18px);
  top: calc(50% + 12px);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: rgba(255, 255, 255, 0.2);
  pointer-events: none;
  transition: color 0.25s;
}

.seg.active-seg .nnum { color: rgba(139, 114, 255, 0.5); }
.seg.active-seg.lil-seg .nnum { color: rgba(192, 132, 252, 0.5); }

/* LAUNCH HINT */
.nhint {
  position: absolute;
  left: calc(var(--axis) + 18px);
  top: calc(50% + 16px);
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: rgba(139, 114, 255, 0.6);
  pointer-events: none;
  white-space: nowrap;
  animation: nhintpulse 2.2s ease-in-out infinite;
}

@keyframes nhintpulse {
  0%, 100% { opacity: 0.35; transform: translateX(0); }
  50% { opacity: 0.9; transform: translateX(3px); }
}

/* ROCKET */
#rkt {
  position: absolute;
  left: calc(var(--axis) - 44px);
  transform: translateX(-50%);
  pointer-events: none;
  z-index: 20;
  transition: bottom 0.75s cubic-bezier(0.4, 0, 0.2, 1);
}

#rkt svg {
  width: 38px;
  height: 48px;
  filter: drop-shadow(0 0 9px rgba(139, 114, 255, 0.8));
  animation: rfloat 2.5s ease-in-out infinite;
}

@keyframes rfloat {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(2px); }
}

.exh {
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(to bottom, var(--amber), transparent);
  animation: epulse 0.25s ease-in-out infinite alternate;
}

@keyframes epulse {
  from { height: 9px; opacity: 0.9; }
  to { height: 16px; opacity: 0.4; }
}

/* PANEL */
#panel {
  width: 40%;
  flex-shrink: 0;
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: width 0.4s ease, opacity 0.4s ease;
}

#panel.hidden {
  width: 0;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
}

.phead {
  padding: 22px 22px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.pmeta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 7px;
}

.pmeta.lm { color: var(--lilac); }

.ptitle {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.pscroll {
  flex: 1;
  overflow-y: auto;
  padding: 18px 22px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.pscroll::-webkit-scrollbar { width: 3px; }
.pscroll::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }

.summary {
  font-size: 17px;
  line-height: 1.75;
  color: var(--muted);
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}

.clbl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin: 14px 0 7px;
}

.clbl.lil { color: var(--lilac); }

.tags { display: flex; flex-wrap: wrap; gap: 5px; }

.tag {
  font-size: 15px;
  color: var(--text);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px 9px;
  line-height: 1.45;
  transition: all 0.18s;
}

.tag:hover { border-color: var(--border2); background: rgba(139, 114, 255, 0.07); }
.tag.hl { border-color: rgba(139, 114, 255, 0.38); color: #c4b5fd; }
.tag.hll { border-color: rgba(192, 132, 252, 0.38); color: var(--lilac); }

.callout {
  margin-top: 18px;
  padding: 11px 13px;
  background: rgba(139, 114, 255, 0.06);
  border-left: 2px solid var(--accent);
  border-radius: 0 5px 5px 0;
  font-size: 16px;
  line-height: 1.65;
  color: var(--muted);
  font-style: italic;
}

.callout.lil { background: rgba(192, 132, 252, 0.06); border-left-color: var(--lilac); }

.pfoot {
  padding: 14px 22px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.btn {
  flex: 1;
  padding: 9px 12px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  border-radius: 6px;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 600;
  transition: all 0.18s;
}

.btn:hover { border-color: var(--border2); color: var(--text); }
.btn.acc { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.acc:hover { background: #7c63f0; }
.btn.accl { background: var(--lilac); border-color: var(--lilac); color: #fff; }
.btn.accl:hover { background: #a855f7; }
.btn:disabled { opacity: 0.2; cursor: not-allowed; pointer-events: none; }

/* PANEL HANDLE (mobile drag-to-collapse) */
.panel-handle {
  display: none;
  padding: 8px 0 4px;
  text-align: center;
  cursor: grab;
  flex-shrink: 0;
}

.panel-handle-pill {
  width: 36px;
  height: 4px;
  background: var(--border2);
  border-radius: 2px;
  margin: 0 auto;
  transition: background 0.2s;
}

.panel-handle:active .panel-handle-pill { background: var(--accent); }

/* CONCLUSION PANEL */
#conclusion {
  width: 50%;
  flex-shrink: 0;
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 40px 32px;
  text-align: center;
  overflow-y: auto;
}

#conclusion.show { display: flex; }

#conclusion > * { flex-shrink: 0; }

.fin-rocket {
  position: relative;
  margin-bottom: 16px;
  animation: finFloat 3s ease-in-out infinite;
}

.fin-rocket svg {
  width: 72px;
  height: 90px;
  filter: drop-shadow(0 0 14px rgba(139, 114, 255, 0.7));
}

.fin-rocket .exh { bottom: 18px; }

@keyframes finFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.fin-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--lilac);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.fin-h {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #fff, var(--lilac));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.fin-sub {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 24px;
}

.fin-quote {
  font-size: 15px;
  color: var(--text);
  font-style: italic;
  line-height: 1.7;
  margin-bottom: 24px;
  padding: 14px 16px;
  border-left: 2px solid var(--lilac);
  text-align: left;
  border-radius: 0 6px 6px 0;
  background: rgba(192, 132, 252, 0.06);
}

.fin-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  background: var(--lilac);
  border: none;
  border-radius: 7px;
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  margin-bottom: 12px;
}

.fin-cta:hover { background: #a855f7; transform: translateY(-1px); }

.fin-restart {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: 7px;
  color: var(--muted);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 12px;
}

.fin-restart:hover { border-color: var(--accent); color: var(--text); }

.fin-share {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: 7px;
  color: var(--muted);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 8px;
}

.fin-share:hover { border-color: var(--lilac); color: var(--lilac); }

.fin-by {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.fin-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  font-family: 'Inter', sans-serif;
}

.fin-role {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 10px;
}

.fin-social {
  display: flex;
  gap: 18px;
  align-items: center;
}

.fin-si {
  color: var(--muted);
  line-height: 0;
  opacity: 0.55;
  transition: opacity 0.2s, color 0.2s;
}

.fin-si:hover { opacity: 1; }
.fin-si.li:hover { color: #0a66c2; }
.fin-si.ig:hover { color: #e1306c; }
.fin-si.yt:hover { color: #ff0000; }

/* BOTTOM BAR */
#bottom {
  position: relative;
  z-index: 10;
  padding: 10px 22px max(10px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--border);
  background: rgba(6, 8, 15, 0.93);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-shrink: 0;
}

.nbtn {
  flex: 0 0 auto;
  min-width: 168px;
  padding: 10px 22px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  border-radius: 6px;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.18s;
}

.nbtn:hover { border-color: var(--border2); color: var(--text); }
.nbtn.pr { background: var(--accent); border-color: var(--accent); color: #fff; }
.nbtn.pr:hover { background: #7c63f0; }
.nbtn.pr.lil { background: var(--lilac); border-color: var(--lilac); }
.nbtn.pr.lil:hover { background: #a855f7; }
.nbtn:disabled { opacity: 0.2; cursor: not-allowed; pointer-events: none; }

/* INTRO */
#intro {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 8, 15, 0.82);
  backdrop-filter: blur(1px);
  transition: opacity 0.6s, visibility 0.6s;
}

#intro.gone { opacity: 0; visibility: hidden; pointer-events: none; }

.ibox { text-align: center; max-width: 460px; padding: 48px 36px; }

.iey {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.ih1 {
  font-size: clamp(26px, 5vw, 42px);
  font-weight: 700;
  color: var(--text);
  line-height: 1.15;
  margin-bottom: 14px;
}

.ih1 em { font-style: normal; color: var(--accent); }

.ip { font-size: 16px; color: var(--muted); line-height: 1.7; margin-bottom: 30px; }

.icta {
  padding: 13px 34px;
  background: var(--accent);
  border: none;
  border-radius: 7px;
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: all 0.2s;
}

.icta:hover { background: #7c63f0; transform: translateY(-1px); }

.ihint {
  margin-top: 13px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--muted);
  opacity: 0.45;
}

.ia-highlight {
  color: #cb6ce6;
}

/* ─── FLOATING SHARE FAB ──────────────────────────────────────────────────── */
#share-fab {
  position: fixed;
  bottom: 74px;
  right: 22px;
  z-index: 95;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

#share-fab.hidden-fab { display: none; }

.share-fab-btn {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--muted);
  flex-shrink: 0;
}

.share-fab-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 6px 22px rgba(139, 114, 255, 0.45);
  transform: scale(1.08);
}

.share-fab-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 6px 22px rgba(139, 114, 255, 0.45);
  transform: rotate(15deg) scale(1.05);
}

.share-menu {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-end;
  pointer-events: none;
  opacity: 0;
  transform: translateY(10px) scale(0.95);
  transition: opacity 0.2s ease, transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: bottom right;
}

.share-menu.open {
  pointer-events: all;
  opacity: 1;
  transform: translateY(0) scale(1);
}

.share-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px 9px 12px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 40px;
  color: var(--muted);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
  white-space: nowrap;
  backdrop-filter: blur(14px);
  min-width: 152px;
  text-align: left;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
}

.share-item:hover { transform: translateX(-3px); color: var(--text); }
.share-item.wa:hover { border-color: #25D366; color: #25D366; }
.share-item.li:hover { border-color: #0A66C2; color: #0A66C2; }
.share-item.ig:hover { border-color: #E1306C; color: #E1306C; }
.share-item.cp:hover { border-color: var(--lilac); color: var(--lilac); }

.share-toast {
  position: fixed;
  bottom: 130px;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 8px 18px;
  font-size: 13px;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  color: var(--text);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  white-space: nowrap;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.4);
}

.share-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 768px) {
  #panel, #conclusion {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100% !important;
    max-height: 62vh;
    border-left: none;
    border-top: 1px solid var(--border);
    z-index: 50;
    transition: max-height 0.3s ease, opacity 0.3s ease;
  }

  #panel.hidden { max-height: 0; opacity: 0; pointer-events: none; }
  #panel.peek { max-height: calc(36px + env(safe-area-inset-bottom, 0px)) !important; overflow: hidden; }
  #panel .pscroll {
    padding-bottom: calc(84px + env(safe-area-inset-bottom, 0px));
  }
  #panel .callout {
    margin-bottom: 18px;
  }
  #conclusion { max-height: 62vh; padding-bottom: max(48px, env(safe-area-inset-bottom, 48px)); }
  #prog-wrap { display: none; }
  #track-center { --axis: 80px; }
  #rkt { left: 46px; }
  .panel-handle { display: block; }
  #bottom { justify-content: space-between; }
  #bottom .nbtn { flex: 1; min-width: 0; }
}