/* Madav University (v2) - builds on ../css/style.css; only the University's own pieces live here. */
:root {
  --orange: #e8875f;
  --u-col: 780px;
}

/* the parts bar under the site header */
.u-parts { position: sticky; top: 68px; z-index: 40; background: rgba(5, 5, 7, 0.82); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.u-parts .wrap { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; padding-top: 10px; padding-bottom: 10px; }
.u-parts .wrap::-webkit-scrollbar { display: none; }
.u-parts a { flex: none; display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px; border-radius: 999px; font-size: 14px; color: var(--muted); border: 1px solid transparent; transition: color 0.2s, background 0.2s, border-color 0.2s; white-space: nowrap; }
.u-parts a span { font-family: var(--mono); font-size: 11.5px; color: var(--dim); }
.u-parts a:hover { color: var(--text); background: rgba(255, 255, 255, 0.04); }
.u-parts a.on { color: var(--text); border-color: rgba(10, 176, 255, 0.45); background: rgba(10, 176, 255, 0.08); }
.u-parts a.on span { color: var(--brand); }
.u-parts .home { color: var(--text); font-weight: 500; }
.nav-links a.on { color: var(--text); }

#app { min-height: 70vh; }
.u-loading { padding: 200px 0; text-align: center; color: var(--dim); font-family: var(--mono); font-size: 13px; }

/* home */
.u-hero { padding: 150px 0 40px; position: relative; overflow: hidden; }
.u-hero::before { content: ""; position: absolute; inset: auto -20% -20% -20%; height: 800px; z-index: -1; pointer-events: none;
  background: radial-gradient(40% 50% at 50% 65%, rgba(123, 97, 255, 0.45), transparent 70%), radial-gradient(30% 40% at 25% 70%, rgba(10, 176, 255, 0.38), transparent 70%), radial-gradient(30% 40% at 78% 65%, rgba(214, 92, 255, 0.32), transparent 70%); }
.u-film { max-width: 980px; margin: 64px auto 0; }
.u-film video { display: block; width: 100%; height: auto; background: #000; }
.u-partgrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 56px; }
.u-part { border-radius: var(--radius); background: var(--card); border: 1px solid var(--line); overflow: hidden; display: grid; grid-template-columns: 1fr 1fr; min-height: 260px; transition: border-color 0.25s, transform 0.25s; }
.u-part:hover { border-color: rgba(10, 176, 255, 0.45); transform: translateY(-2px); }
.u-part .tx { padding: 28px; display: flex; flex-direction: column; gap: 10px; }
.u-part .no { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; color: var(--brand); }
.u-part h3 { font-size: 24px; }
.u-part p { margin: 0; color: var(--muted); font-size: 14.5px; }
.u-part .go { margin-top: auto; font-size: 14px; color: var(--text); }
.u-part img { width: 100%; height: 100%; object-fit: cover; }
.u-doors { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin-top: 28px; }

/* a reading column */
.u-page { padding: 150px 0 60px; }
.u-read { max-width: var(--u-col); margin: 0 auto; }
.u-wide { max-width: var(--max); margin: 0 auto; }
.u-partno { display: flex; justify-content: center; margin-bottom: 8px; }

/* prose */
.prose { font-size: 17px; line-height: 1.75; color: #d6d6de; overflow-wrap: anywhere; }
.prose p { margin: 0 0 18px; }
.prose strong { color: var(--text); font-weight: 600; }
.prose em { color: var(--text); }
.prose a { color: var(--brand); text-decoration: underline; text-decoration-color: rgba(10, 176, 255, 0.4); text-underline-offset: 3px; }
.prose a:hover { text-decoration-color: var(--brand); }
.prose code { font-family: var(--mono); font-size: 0.86em; padding: 2px 6px; border-radius: 6px; background: rgba(255, 255, 255, 0.07); color: #e9e9f0; }
.prose .u-kicker { display: inline-flex; margin: 40px 0 14px; padding: 5px 13px; border: 1px solid var(--line-2); border-radius: 999px; font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); line-height: 1.4; }
.prose > .u-kicker:first-child { margin-top: 0; }
.prose h1 { font-size: clamp(36px, 5.4vw, 60px); margin: 0 0 22px; color: var(--text); }
.prose h1 em, .prose h2 em { font-family: var(--serif); font-weight: 400; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.prose h2 { font-size: clamp(28px, 3.6vw, 40px); margin: 64px 0 18px; color: var(--text); scroll-margin-top: 140px; }
.prose h3 { font-size: 22px; margin: 36px 0 12px; color: var(--text); scroll-margin-top: 140px; }
.prose h4 { font-size: 17px; margin: 26px 0 10px; color: var(--text); }
.prose ul, .prose ol { margin: 0 0 20px; padding-left: 22px; }
.prose li { margin: 6px 0; }
.prose li::marker { color: var(--brand); }
.prose .u-num { display: flex; align-items: center; gap: 12px; margin: 48px 0 6px; color: var(--muted); font-size: 14px; }
.prose .u-num span { font-family: var(--mono); font-size: 13px; font-weight: 500; padding: 4px 10px; border-radius: 8px; background: rgba(10, 176, 255, 0.1); color: var(--brand); border: 1px solid rgba(10, 176, 255, 0.35); }
.prose .u-num + h2, .prose .u-num + h3 { margin-top: 8px; }
.u-fig { margin: 28px 0; border-radius: 18px; overflow: hidden; border: 1px solid var(--line-2); background: var(--card); }
.u-fig img { width: 100%; height: auto; }
.u-fig figcaption { padding: 12px 16px; font-size: 13.5px; color: var(--muted); border-top: 1px solid var(--line); }
.u-code { position: relative; margin: 0 0 22px; padding: 18px 20px; border-radius: 14px; background: #0c0c12; border: 1px solid var(--line-2); overflow-x: auto; font-family: var(--mono); font-size: 13.5px; line-height: 1.6; color: #dcdce6; white-space: pre; }
.u-code code { background: none; padding: 0; font-size: inherit; }
.u-copy { position: absolute; top: 8px; right: 8px; padding: 4px 10px; border-radius: 8px; border: 1px solid var(--line-2); background: var(--card-2); font-size: 12px; color: var(--muted); opacity: 0; transition: opacity 0.2s; }
.u-code:hover .u-copy, .u-copy:focus { opacity: 1; }
@media (hover: none) { .u-copy { opacity: 1; } }
.u-tablewrap { overflow-x: auto; margin: 0 0 24px; border: 1px solid var(--line-2); border-radius: 14px; }
.u-tablewrap table { border-collapse: collapse; width: 100%; font-size: 14.5px; }
.u-tablewrap th, .u-tablewrap td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.u-tablewrap th { color: var(--text); font-weight: 500; background: rgba(255, 255, 255, 0.03); }
.u-tablewrap tr:last-child td { border-bottom: 0; }
/* command rows (Claude daily commands) */
.prose .u-cmds { list-style: none; padding: 0; display: grid; gap: 8px; }
.prose .u-cmds > li { margin: 0; border: 1px solid var(--line); border-radius: 12px; background: var(--card); }
.u-cmds details > summary, .u-cmds .row { list-style: none; cursor: pointer; padding: 12px 16px; display: grid; grid-template-columns: 150px 1fr auto; gap: 14px; align-items: start; }
.u-cmds .row { cursor: default; }
.u-cmds summary::-webkit-details-marker { display: none; }
.u-cmds summary::after { content: "Example"; font-size: 12px; color: var(--brand); border: 1px solid rgba(10, 176, 255, 0.35); border-radius: 999px; padding: 2px 10px; }
.u-cmds details[open] summary::after { content: "Close"; }
.u-cmds .c code { color: var(--brand); background: rgba(10, 176, 255, 0.08); }
.u-cmds .w { color: var(--text); font-size: 15px; line-height: 1.5; }
.u-cmds .w small { display: block; color: var(--muted); font-size: 13.5px; margin-top: 4px; }
.u-cmds .ex { padding: 0 16px 14px; font-size: 14.5px; color: var(--muted); }
.u-cmds .ex ul { margin: 0; padding-left: 18px; }

.u-index { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; margin: 8px 0 28px; }
.prose .u-index a { display: flex; flex-direction: column; gap: 4px; padding: 14px 16px; border-radius: 14px; border: 1px solid var(--line-2); background: var(--card); color: var(--text); text-decoration: none; font-size: 14.5px; line-height: 1.45; transition: border-color 0.2s; }
.prose .u-index a:hover { border-color: rgba(10, 176, 255, 0.5); }
.u-index span { font-family: var(--mono); font-size: 12px; color: var(--brand); }
.u-index b { font-weight: 600; color: var(--text); }
.u-index small { color: var(--muted); font-size: 13.5px; }

/* embeds */
.u-embed { margin: 32px 0; }
.u-wideblock { width: min(1180px, 100vw - 32px); margin-left: 50%; transform: translateX(-50%); }

/* diagrams */
.dg { border-radius: 20px; border: 1px solid var(--line-2); background: radial-gradient(80% 60% at 50% 0%, rgba(123, 97, 255, 0.08), transparent 70%), var(--bg-2); padding: 22px; margin: 0; }
.dg-head { margin-bottom: 16px; }
.dg-head b { display: block; font-size: 17px; color: var(--text); font-weight: 600; letter-spacing: -0.01em; }
.dg-head span { font-size: 13.5px; color: var(--muted); }
.dg-scroll { overflow-x: auto; padding-bottom: 6px; }
.dg-body { position: relative; display: grid; gap: 14px; min-width: var(--dg-min, 0); }
.dg-lane { display: grid; grid-template-columns: 120px 1fr; gap: 12px; align-items: stretch; }
.dg-lane.solo { grid-template-columns: 1fr; }
.dg-lh { border-radius: 12px; padding: 10px 12px; background: rgba(255, 255, 255, 0.03); border: 1px solid var(--line); display: flex; flex-direction: column; justify-content: center; }
.dg-lh b { font-size: 13px; font-weight: 600; color: var(--text); }
.dg-lh span { font-size: 11.5px; color: var(--dim); }
.dg-rows { display: grid; row-gap: 30px; }
.dg-row { display: grid; column-gap: 28px; align-items: stretch; }
.dg-cell { position: relative; z-index: 2; text-align: left; border-radius: 12px; padding: 10px 12px; background: var(--card); border: 1px solid var(--line-2); display: flex; flex-direction: column; gap: 3px; min-width: 0; transition: border-color 0.2s, background 0.2s, opacity 0.2s, box-shadow 0.2s; font-size: 13px; color: var(--muted); }
.dg-cell:hover { border-color: rgba(255, 255, 255, 0.3); }
.dg-cell b { color: var(--text); font-weight: 500; font-size: 13.5px; line-height: 1.3; }
.dg-cell .n { font-family: var(--mono); font-size: 10.5px; color: var(--dim); }
.dg-cell .d { font-size: 12px; line-height: 1.4; }
.dg-cell .base { font-family: var(--mono); font-size: 10.5px; color: var(--dim); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.06em; }
.dg-cell .tags { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 4px; }
.dg-cell .tags i { font-style: normal; font-size: 11px; padding: 1px 7px; border-radius: 999px; border: 1px solid var(--line-2); }
.dg-cell .tags i.key { color: var(--brand); border-color: rgba(10, 176, 255, 0.4); }
.dg-cell .who { font-size: 11px; color: var(--dim); }
.dg-cell::before { content: ""; position: absolute; left: 0; top: 10px; bottom: 10px; width: 3px; border-radius: 3px; background: var(--rc, transparent); }
.dg-cell.r-person { --rc: var(--brand); } .dg-cell.r-agent { --rc: var(--orange); } .dg-cell.r-machine, .dg-cell.r-decision, .dg-cell.r-checks { --rc: var(--green); }
.dg-cell.r-trigger { --rc: var(--amber); } .dg-cell.r-artifact { --rc: #8f8fa3; } .dg-cell.r-gate { --rc: #a996ff; }
.dg-cell.done b::after { content: " ✓"; color: var(--green); }
.dg-cell.on { border-color: var(--brand); background: rgba(10, 176, 255, 0.08); }
.dg.dim .dg-cell { opacity: 0.32; }
.dg.dim .dg-cell.lit { opacity: 1; border-color: var(--brand); box-shadow: 0 0 24px rgba(10, 176, 255, 0.25); background: rgba(10, 176, 255, 0.08); }
.dg-note { display: block; margin-top: 6px; padding-top: 6px; border-top: 1px dashed var(--line-2); font-size: 11px; color: var(--amber); line-height: 1.35; }
.dg.has-labels .dg-row { column-gap: 96px; }
.dg.has-labels .dg-rows { row-gap: 56px; }
.dg.has-labels .dg-labels > * { white-space: normal; max-width: 170px; text-align: center; line-height: 1.3; border-radius: 10px; }
.dg-gap { min-height: 1px; }
.dg-arrows { position: absolute; left: 0; top: 0; pointer-events: none; z-index: 1; overflow: visible; }
.dg-arrows path { fill: none; stroke: rgba(170, 170, 190, 0.55); stroke-width: 1.5; }
.dg-arrows path.dash { stroke-dasharray: 5 5; }
.dg-arrows marker path { fill: rgba(170, 170, 190, 0.8); stroke: none; }
.dg-labels { position: absolute; left: 0; top: 0; width: 0; height: 0; z-index: 3; }
.dg-labels > * { position: absolute; transform: translate(-50%, -50%); font-family: var(--mono); font-size: 10.5px; padding: 2px 8px; border-radius: 999px; background: var(--bg-2); border: 1px solid var(--line-2); color: var(--muted); white-space: nowrap; }
.dg-labels button { color: var(--brand); border-color: rgba(10, 176, 255, 0.4); cursor: pointer; }
.dg-tip { margin-top: 16px; border-radius: 14px; border: 1px solid rgba(10, 176, 255, 0.35); background: rgba(10, 176, 255, 0.05); padding: 14px 16px; font-size: 14.5px; color: var(--muted); display: none; }
.dg-tip.show { display: block; }
.dg-tip b { color: var(--text); display: block; margin-bottom: 4px; font-weight: 500; }
.dg-tip .act { margin-top: 10px; display: flex; gap: 8px; flex-wrap: wrap; }
.dg-foot { margin-top: 16px; display: grid; gap: 8px; font-size: 13.5px; color: var(--muted); }
.dg-foot .no::before { content: "✕ "; color: var(--red); }
.dg-foot .c { color: var(--text); }
.dg-legend { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 14px; font-size: 12px; color: var(--dim); }
.dg-legend span::before { content: ""; display: inline-block; width: 10px; height: 3px; border-radius: 3px; margin-right: 6px; vertical-align: middle; background: var(--c); }
.dg-hint { font-size: 12px; color: var(--dim); margin-top: 10px; }
.dg-tree { font-family: var(--mono); font-size: 14px; }
.dg-tree > code { color: var(--text); }
.dg-tree ul { list-style: none; margin: 10px 0 0; padding: 0 0 0 18px; border-left: 1px dashed var(--line-2); display: grid; gap: 6px; }
.dg-tree li { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.dg-tree button { font-family: var(--mono); font-size: 14px; color: var(--brand); padding: 4px 10px; border-radius: 8px; border: 1px solid rgba(10, 176, 255, 0.35); background: rgba(10, 176, 255, 0.06); }
.dg-tree li span { font-family: var(--sans); font-size: 13px; color: var(--dim); }
.flash { animation: flash 1.6s ease; }
@keyframes flash { 0%, 40% { background: rgba(10, 176, 255, 0.14); } 100% { background: transparent; } }

/* scenes */
.u-scenes { margin: 48px 0; }
.u-scenes > .head { text-align: center; max-width: var(--u-col); margin: 0 auto 32px; }
.u-scenes > .head h2 { margin-top: 12px; }
.u-scene { display: grid; grid-template-columns: 1.1fr 1fr; gap: 36px; align-items: center; padding: 36px 0; border-top: 1px solid var(--line); }
.u-scene:nth-child(even) > .pic { order: 2; }
.u-scene .pic { border-radius: 18px; overflow: hidden; border: 1px solid var(--line-2); background: var(--card); }
.u-scene .pic img { width: 100%; height: auto; }
.u-scene .when { font-family: var(--mono); font-size: 12.5px; color: var(--brand); letter-spacing: 0.06em; }
.u-scene h3 { font-size: 26px; margin: 8px 0 12px; }
.u-scene p { color: var(--muted); margin: 0 0 12px; font-size: 16px; }
.u-scene .this { color: var(--text); padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line-2); background: var(--card); font-size: 15px; }
.u-scene .this a, .u-scenes a { color: var(--brand); }
.u-opens { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.u-opens a { font-size: 13px; padding: 5px 12px; border-radius: 999px; border: 1px solid rgba(10, 176, 255, 0.35); color: var(--brand); background: rgba(10, 176, 255, 0.06); }

/* the lesson library */
.u-lib { margin-top: 24px; }
.u-lib h3 { font-size: 20px; margin: 40px 0 6px; display: flex; gap: 10px; align-items: baseline; }
.u-lib h3 small { font-family: var(--mono); font-size: 12px; color: var(--dim); font-weight: 400; }
.u-lgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; margin-top: 16px; }
.u-lcard { border-radius: 16px; background: var(--card); border: 1px solid var(--line); overflow: hidden; display: flex; flex-direction: column; transition: border-color 0.2s, transform 0.2s; }
.u-lcard:hover { border-color: rgba(10, 176, 255, 0.45); transform: translateY(-2px); }
.u-lcard .im { aspect-ratio: 16 / 10; overflow: hidden; background: var(--card-2); }
.u-lcard img { width: 100%; height: 100%; object-fit: cover; }
.u-lcard .tx { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 6px; }
.u-lcard .n { font-family: var(--mono); font-size: 11px; color: var(--brand); letter-spacing: 0.06em; }
.u-lcard b { font-size: 16px; font-weight: 600; letter-spacing: -0.01em; }
.u-lcard p { margin: 0; font-size: 13.5px; color: var(--muted); line-height: 1.5; }

.u-libhead { margin-top: 72px; }
.u-libhead.has-tower { display: grid; grid-template-columns: 1fr auto 1fr; align-items: end; gap: 24px; }
.u-libhead.has-tower > .center { grid-column: 2; }
.u-tower { grid-column: 3; justify-self: start; height: 260px; width: auto; filter: drop-shadow(0 20px 40px rgba(10, 176, 255, 0.18)); }

/* a lesson */
.u-crumb { font-size: 13.5px; color: var(--dim); margin-bottom: 26px; display: flex; gap: 8px; flex-wrap: wrap; }
.u-crumb a { color: var(--muted); } .u-crumb a:hover { color: var(--text); }
.u-lhead { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
.u-lhead h1 { font-size: clamp(36px, 5vw, 58px); margin: 14px 0 16px; }
.u-lhead .lead { margin: 0; }
.u-lhead figure { margin: 0; border-radius: 20px; overflow: hidden; border: 1px solid var(--line-2); }
.u-lhead img { width: 100%; height: auto; }
.u-lbody { max-width: var(--u-col); margin: 56px auto 0; }
.u-lbody h2 { font-size: 30px; margin: 56px 0 16px; }
.u-lbody > p, .u-lbody .p { font-size: 17px; line-height: 1.75; color: #d6d6de; margin: 0 0 16px; }
.u-lbody strong { color: var(--text); }
.u-lbody code { font-family: var(--mono); font-size: 0.86em; padding: 2px 6px; border-radius: 6px; background: rgba(255, 255, 255, 0.07); }
.u-lbody a { color: var(--brand); }
.u-callout { border-radius: 18px; padding: 22px 24px; margin: 28px 0; border: 1px solid rgba(123, 97, 255, 0.4); background: linear-gradient(135deg, rgba(123, 97, 255, 0.1), rgba(10, 176, 255, 0.04)); }
.u-callout .k, .u-ex .k, .u-madav .k { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.08em; text-transform: uppercase; color: #b3a5ff; display: block; margin-bottom: 8px; }
.u-callout p { margin: 0 0 10px; font-size: 17px; line-height: 1.7; color: var(--text); }
.u-callout p:last-child { margin: 0; }
.u-ex { border-radius: 18px; padding: 22px 24px; margin: 28px 0; border: 1px solid var(--line-2); background: var(--card); }
.u-ex .k { color: var(--brand); }
.u-ex p { margin: 0 0 12px; color: #d6d6de; line-height: 1.7; }
.u-ex ul { margin: 0 0 12px; padding-left: 20px; color: #d6d6de; }
.u-ex li::marker { color: var(--brand); }
.u-rec { font-size: 20px; line-height: 1.5; color: var(--text); margin: 0 0 16px; }
.u-practice { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 20px 0; }
.u-practice div { border-radius: 14px; border: 1px solid var(--line); background: var(--card); padding: 16px; font-size: 14.5px; color: var(--muted); line-height: 1.55; }
.u-practice b { display: block; color: var(--text); font-weight: 500; margin-bottom: 4px; }
.u-mistake { border-radius: 14px; padding: 16px 18px; border: 1px solid rgba(255, 107, 107, 0.35); background: rgba(255, 107, 107, 0.05); color: #e9d5d5; font-size: 15px; line-height: 1.6; }
.u-mistake .k { color: var(--red); font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.08em; text-transform: uppercase; display: block; margin-bottom: 6px; }
.u-remember { margin: 48px 0; padding: 0 0 0 24px; border-left: 3px solid; border-image: var(--grad) 1; font-family: var(--serif); font-style: italic; font-size: clamp(24px, 3vw, 32px); line-height: 1.35; color: var(--text); }
.u-madav { border-radius: 20px; padding: 26px; border: 1px solid rgba(10, 176, 255, 0.4); background: radial-gradient(70% 90% at 100% 0%, rgba(123, 97, 255, 0.18), transparent 60%), var(--card); }
.u-madav .k { color: var(--brand); }
.u-madav h3 { font-size: 22px; margin-bottom: 8px; }
.u-madav p { color: var(--muted); margin: 0 0 16px; }
.u-prompt { position: relative; border-radius: 14px; background: #0c0c12; border: 1px solid var(--line-2); padding: 16px 18px; font-family: var(--mono); font-size: 13.5px; line-height: 1.6; color: #dcdce6; white-space: pre-wrap; }
.u-prompt .u-copy { opacity: 1; }
.u-pn { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 56px; }
.u-pn a { border-radius: 16px; border: 1px solid var(--line); background: var(--card); padding: 16px 18px; display: flex; flex-direction: column; gap: 4px; transition: border-color 0.2s; min-width: 0; }
.u-pn a:hover { border-color: rgba(10, 176, 255, 0.45); }
.u-pn a.nx { text-align: right; grid-column: 2; }
.u-pn small { font-family: var(--mono); font-size: 11.5px; color: var(--dim); }
.u-pn b { font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* the SDLC part */
.u-cast { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 24px; }
.u-person { border-radius: 16px; border: 1px solid var(--line); background: var(--card); padding: 16px; display: flex; gap: 12px; align-items: flex-start; }
.u-person .av { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; font-weight: 600; color: #fff; flex: none; }
.u-person b { display: block; font-weight: 500; }
.u-person p { margin: 2px 0 0; font-size: 13.5px; color: var(--muted); line-height: 1.5; }
.u-stagetabs { display: flex; gap: 6px; overflow-x: auto; scrollbar-width: none; padding: 4px; border-radius: 999px; border: 1px solid var(--line-2); background: var(--card); width: fit-content; max-width: 100%; margin: 24px auto 0; }
.u-stagetabs::-webkit-scrollbar { display: none; }
.u-stagetabs a { flex: none; padding: 8px 16px; border-radius: 999px; font-size: 14px; color: var(--muted); white-space: nowrap; }
.u-stagetabs a span { font-family: var(--mono); font-size: 11.5px; margin-right: 6px; color: var(--dim); }
.u-stagetabs a.on { background: #fff; color: #08080b; } .u-stagetabs a.on span { color: #08080b; }
.u-stage { margin-top: 40px; }
.u-stage .split { align-items: start; }
.u-glance { position: sticky; top: 150px; }
.u-glance .who { display: flex; gap: 6px; flex-wrap: wrap; margin: 8px 0 16px; }
.u-glance .who span { font-size: 12.5px; padding: 3px 10px; border-radius: 999px; border: 1px solid var(--line-2); }
.u-glance .who span.ag { color: var(--orange); border-color: rgba(232, 135, 95, 0.45); }
.u-glance dl { margin: 0; display: grid; gap: 12px; }
.u-glance dt { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--dim); }
.u-glance dd { margin: 2px 0 0; font-size: 14.5px; color: var(--text); line-height: 1.5; }
.u-glance code, .u-cmp code, .u-files code, .u-gloss code, .u-measure code { font-family: var(--mono); font-size: 0.86em; padding: 1px 5px; border-radius: 5px; background: rgba(255, 255, 255, 0.07); }
.u-cmp { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 24px; }
.u-cmp > div { border-radius: 18px; padding: 22px; border: 1px solid var(--line); background: var(--card); color: var(--muted); font-size: 15px; line-height: 1.6; }
.u-cmp > div.now { border-color: rgba(10, 176, 255, 0.45); background: linear-gradient(180deg, rgba(10, 176, 255, 0.08), var(--card) 60%); color: #d6d6de; }
.u-cmp b { display: block; color: var(--text); margin-bottom: 8px; font-weight: 600; }
.u-files { display: grid; gap: 10px; margin-top: 18px; }
.u-file { border-radius: 14px; border: 1px solid var(--line-2); background: var(--card); overflow: hidden; scroll-margin-top: 150px; }
.u-file summary { list-style: none; cursor: pointer; padding: 14px 18px; display: flex; gap: 12px; align-items: center; font-family: var(--mono); font-size: 14px; color: var(--text); }
.u-file summary::-webkit-details-marker { display: none; }
.u-file summary::before { content: "›"; color: var(--brand); transition: transform 0.2s; font-family: var(--sans); font-size: 18px; }
.u-file[open] summary::before { transform: rotate(90deg); }
.u-file .body { padding: 0 18px 18px; display: grid; grid-template-columns: 1.5fr 1fr; gap: 16px; }
.u-file pre { margin: 0; padding: 16px; border-radius: 12px; background: #0c0c12; border: 1px solid var(--line); overflow: auto; max-height: 520px; font-family: var(--mono); font-size: 12.5px; line-height: 1.6; color: #dcdce6; white-space: pre-wrap; }
.u-file aside { border-radius: 12px; padding: 14px; border: 1px solid rgba(123, 97, 255, 0.35); background: rgba(123, 97, 255, 0.06); font-size: 14px; color: var(--muted); line-height: 1.55; align-self: start; }
.u-file aside .k { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: #b3a5ff; display: block; margin-bottom: 6px; }
.u-measures { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 18px; }
.u-measure { border-radius: 16px; border: 1px solid var(--line); background: var(--card); padding: 18px; font-size: 14.5px; color: var(--muted); line-height: 1.55; }
.u-measure b { display: block; color: var(--text); font-weight: 500; margin-bottom: 4px; }
.u-sub { font-size: 22px; margin: 48px 0 6px; }
.u-sub + .muted { margin: 0; }
.u-gloss { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 24px; }
.u-gloss > div { border-radius: 14px; border: 1px solid var(--line); background: var(--card); padding: 16px; scroll-margin-top: 150px; }
.u-gloss b { font-family: var(--mono); font-size: 14px; color: var(--brand); font-weight: 500; }
.u-gloss p { margin: 6px 0 0; font-size: 14px; color: var(--muted); line-height: 1.55; }
.u-repo td:first-child code { white-space: nowrap; }
.u-repo .chip-s { display: inline-block; font-size: 11.5px; padding: 1px 8px; border-radius: 999px; border: 1px solid var(--line-2); margin: 2px 4px 2px 0; color: var(--muted); white-space: nowrap; }
.u-next { display: flex; justify-content: center; margin-top: 64px; }

@media (max-width: 860px) {
  .u-partgrid { grid-template-columns: 1fr; }
  .u-libhead.has-tower { grid-template-columns: 1fr; }
  .u-libhead.has-tower > .center { grid-column: auto; }
  .u-tower { grid-column: auto; justify-self: center; height: 200px; order: -1; }
  .u-part { grid-template-columns: 1fr; }
  .u-part img { height: 200px; order: -1; }
  .u-scene { grid-template-columns: 1fr; gap: 18px; }
  .u-scene:nth-child(even) > .pic { order: 0; }
  .u-lhead { grid-template-columns: 1fr; }
  .u-lhead figure { order: -1; }
  .u-practice, .u-cmp, .u-measures, .u-gloss, .u-cast { grid-template-columns: 1fr; }
  .u-file .body { grid-template-columns: 1fr; }
  .u-glance { position: static; }
  .u-cmds details > summary, .u-cmds .row { grid-template-columns: 1fr; gap: 6px; }
  .u-cmds summary::after { justify-self: start; }
  .u-page { padding-top: 130px; }
  .u-hero { padding-top: 120px; }
  .dg { padding: 16px; }
  .dg-lane { grid-template-columns: 1fr; }
  .prose { font-size: 16px; }
}