/* Network Design Academy - Tracks overview page only (2026-10-28) */

/* section labels carry the heading; the lead under them is the message */
.page-hero h1.eyebrow, h1.eyebrow, h2.eyebrow { font-family: var(--mono); font-size: .78rem; letter-spacing: .14em; font-weight: 500; line-height: 1.4; max-width: none; margin: 0 0 1.1rem; }
.trk-intent { color: var(--fg); font-size: clamp(1.12rem, 1.6vw, 1.38rem); line-height: 1.55; max-width: 64ch; }
.section--paper .trk-intent { color: var(--paper-text); }
.trk-sec { scroll-margin-top: 132px; }
.trk-sec .section-head { margin-bottom: clamp(28px, 4vw, 44px); }

/* hero with the instructor photo */
.trk-hero { padding-bottom: 0; overflow: hidden; }
.trk-hero-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: clamp(24px, 4vw, 56px); align-items: end; }
.trk-hero-text { padding-bottom: clamp(24px, 4vw, 48px); }
.trk-hero-text .trk-intent { font-size: clamp(1.2rem, 2vw, 1.6rem); }
.trk-photo { margin: 0; position: relative; align-self: end; justify-self: center; }
.trk-photo img { display: block; width: auto; height: min(460px, 42vw); max-width: 100%; object-fit: contain;
  filter: drop-shadow(0 0 48px rgba(255,106,19,.22)); }
.trk-photo figcaption { position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%); white-space: nowrap;
  font-family: var(--mono); font-size: .68rem; letter-spacing: .06em; color: var(--muted);
  background: rgba(10,14,23,.82); border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; }
.trk-hero .shop-facts { margin: 0 0 clamp(36px, 5vw, 56px); position: relative; z-index: 1; }
@media (max-width: 860px) {
  .trk-hero-grid { grid-template-columns: 1fr; }
  .trk-photo img { height: 320px; }
  .trk-photo figcaption { white-space: normal; text-align: center; width: max-content; max-width: 92%; }
}

/* sticky menu of the blocks on this page */
.trk-subnav { position: sticky; top: 72px; z-index: 40; background: rgba(10,14,23,.92); backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.trk-subnav .container { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; padding-top: 8px; padding-bottom: 8px; }
.trk-subnav .container::-webkit-scrollbar { display: none; }
.trk-subnav a { flex: none; padding: 8px 14px; border-radius: 999px; font-size: .86rem; font-weight: 500; color: var(--muted);
  white-space: nowrap; transition: color .2s, background .2s; }
.trk-subnav a:hover { color: var(--fg); background: rgba(255,255,255,.05); }
.trk-subnav a.is-cur { color: #140700; background: var(--accent); }

/* why: six points in three columns */
.trk-need { grid-template-columns: repeat(3, 1fr); }
.trk-need li:nth-child(odd) { padding-right: 0; }
.trk-need li { padding-right: 20px; }
@media (max-width: 860px) { .trk-need { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .trk-need, .trk-split .trk-need { grid-template-columns: 1fr; } }
.trk-emp { margin: 6px 0 0; }
.trk-emp li { font-size: 1.05rem; margin-bottom: .9em; }

/* Track vs Intensive: the highlight slides to the column under the pointer, a soft light follows it */
.trk-vs { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.trk-vs-glow { position: absolute; top: 0; left: 0; width: calc(50% - 9px); height: 100%; border-radius: 18px; pointer-events: none;
  border: 1.5px solid var(--accent); box-shadow: 0 0 0 4px rgba(255,106,19,.10), 0 24px 60px -30px rgba(255,106,19,.65);
  transition: transform .45s cubic-bezier(.2,.8,.2,1); z-index: 2; }
.trk-vs[data-on="1"] .trk-vs-glow { transform: translateX(calc(100% + 18px)); }
.trk-vs-col { --mx: 50%; --my: 0%; position: relative; z-index: 1; display: flex; flex-direction: column; gap: 4px;
  padding: clamp(22px, 2.6vw, 34px); border-radius: 18px; border: 1px solid var(--line); outline: none;
  background: radial-gradient(420px circle at var(--mx) var(--my), rgba(255,106,19,.0), transparent 60%), var(--panel);
  transition: background .2s, opacity .3s; }
.trk-vs-col.is-on { background: radial-gradient(420px circle at var(--mx) var(--my), rgba(255,106,19,.16), transparent 60%), var(--panel); }
.trk-vs:not(:hover) .trk-vs-col.is-on { background: radial-gradient(520px circle at 50% 0%, rgba(255,106,19,.12), transparent 65%), var(--panel); }
.trk-vs-col:not(.is-on) { opacity: .72; }
.trk-vs-head { display: flex; flex-direction: column; gap: 4px; margin-bottom: 16px; }
.trk-vs-name { font-family: var(--display); font-size: clamp(1.6rem, 2.6vw, 2.1rem); font-weight: 700; letter-spacing: -.02em; }
.trk-vs-sub { font-family: var(--mono); font-size: .72rem; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }
.trk-vs dl { margin: 0 0 18px; }
.trk-vs-row { padding: 12px 0; border-top: 1px solid var(--line); transition: background .2s; border-radius: 6px; }
.trk-vs-row dt { font-family: var(--mono); font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); }
.trk-vs-row dd { margin: 3px 0 0; color: var(--fg); }
.trk-vs-row.is-row { background: rgba(255,255,255,.04); box-shadow: -8px 0 0 rgba(255,255,255,.04), 8px 0 0 rgba(255,255,255,.04); }
.trk-vs-col .link-arrow { margin-top: auto; color: var(--accent); font-weight: 600; }
@media (max-width: 760px) {
  .trk-vs { grid-template-columns: 1fr; }
  .trk-vs-glow { display: none; }
  .trk-vs-col:not(.is-on) { opacity: 1; }
  .trk-vs-col.is-on { border-color: var(--accent); }
}
@media (prefers-reduced-motion: reduce) { .trk-vs-glow { transition: none; } }

/* ---------- animated visuals ---------- */
.trk-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: center; }
.trk-split .section-head { margin-bottom: 24px; }
.trk-split .trk-need { grid-template-columns: 1fr 1fr; }
@media (max-width: 960px) { .trk-split { grid-template-columns: minmax(0, 1fr); } }
.trk-viz { position: relative; border-radius: 18px; border: 1px solid var(--line); background: var(--ink-2); padding: clamp(14px, 2vw, 24px); overflow: hidden; }
.trk-viz::before { content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 28px 28px; }
.trk-viz > svg { position: relative; display: block; width: 100%; height: auto; }
.trk-viz-cap { position: relative; margin: 10px 0 0; font-family: var(--mono); font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; color: var(--dim); }
.section--paper .trk-viz { box-shadow: 0 30px 60px -40px rgba(10,14,23,.55); }
.trk-viz--wide { margin: 0 0 24px; }
@media (max-width: 700px) { .trk-viz--wide { display: none; } }
.trk-viz--plain { border: 0; background: none; padding: 0; }
.trk-viz--plain::before { display: none; }

.trk-net .link.trk-dash { stroke-dasharray: 4 5; stroke: rgba(255,255,255,.16); }
.trk-net .node.is-exam rect:not(.trk-halo) { stroke: var(--warn); }
.trk-net .node.is-goal rect { stroke: var(--up); fill: #10262a; }
.trk-net .node.is-goal text:not(.sub) { fill: var(--up); font-weight: 600; }
.trk-net .trk-halo { fill: none; stroke: var(--warn); stroke-width: 1; opacity: 0; animation: trkHalo 2.6s ease-out infinite; transform-box: fill-box; transform-origin: center; }
.trk-net .node.is-exam:nth-of-type(odd) .trk-halo { animation-delay: 1.3s; }
@keyframes trkHalo { 0% { opacity: .8; transform: scale(.96); } 100% { opacity: 0; transform: scale(1.12); } }
.trk-net .trk-bar-bg { fill: rgba(255,255,255,.08); }
.trk-net .trk-bar { fill: var(--up); }

.trk-orbit { display: block; width: min(100%, 440px); height: auto; margin: 0 auto; overflow: visible; }
.trk-orbit .trk-ring { fill: none; stroke: rgba(255,255,255,.14); stroke-dasharray: 2 6; }
.trk-orbit .trk-ring--out { stroke: rgba(255,255,255,.10); }
.trk-orbit .trk-core { fill: var(--panel-2); stroke: var(--accent); stroke-width: 1.5; }
.trk-orbit .trk-core-pulse { fill: rgba(255,106,19,.14); transform-box: fill-box; transform-origin: center; animation: trkPulse 3s ease-in-out infinite; }
@keyframes trkPulse { 0%, 100% { transform: scale(1); opacity: .9; } 50% { transform: scale(1.18); opacity: .35; } }
.trk-orbit .trk-core-t { fill: var(--fg); font-family: var(--display); font-weight: 700; font-size: 15px; text-anchor: middle; letter-spacing: .04em; }
.trk-orbit .trk-core-s { fill: var(--accent); font-family: var(--mono); font-size: 10px; text-anchor: middle; letter-spacing: .2em; }
.trk-orbit .trk-spin { transform-box: view-box; transform-origin: 220px 220px; }
.trk-orbit .trk-spin--in { animation: trkSpin 48s linear infinite; }
.trk-orbit .trk-spin--out { animation: trkSpin 72s linear infinite reverse; }
.trk-orbit .trk-spin--in .trk-upright { animation: trkSpin 48s linear infinite reverse; }
.trk-orbit .trk-spin--out .trk-upright { animation: trkSpin 72s linear infinite; }
.trk-orbit .trk-upright { transform-box: view-box; }
@keyframes trkSpin { to { transform: rotate(360deg); } }
.trk-orbit .trk-pill rect { fill: var(--panel); stroke: rgba(255,255,255,.3); stroke-width: 1.2; }
.trk-orbit .trk-pill text { fill: var(--fg); font-family: var(--mono); font-size: 12px; font-weight: 500; text-anchor: middle; letter-spacing: .06em; }
.trk-orbit .trk-pill.is-open rect { stroke: var(--up); fill: rgba(47,212,181,.12); }
.trk-orbit .trk-pill.is-open text { fill: var(--up); }
.trk-orbit .trk-pill.is-expert rect { stroke: var(--accent); fill: rgba(255,106,19,.14); }
.trk-orbit .trk-pill.is-expert text { fill: var(--accent); }
.trk-orbit.is-still .trk-spin, .trk-orbit.is-still .trk-upright, .trk-orbit.is-still .trk-core-pulse { animation: none; }
@media (prefers-reduced-motion: reduce) { .trk-orbit .trk-spin, .trk-orbit .trk-upright, .trk-orbit .trk-core-pulse, .trk-net .trk-halo { animation: none; } }
@media (max-width: 560px) { .trk-split .trk-need { grid-template-columns: minmax(0, 1fr); } .trk-need li { padding-right: 0; } }