/* ============================================================
   Jongseo Lee — Office (interactive 3D desk)
   Palette shared with the classic homepage.
   ============================================================ */

:root {
    --navy-900: #0a1f3d;
    --navy-800: #0f2a52;
    --navy-700: #163a6b;
    --navy-600: #1f4e8c;
    --navy-500: #2a63ad;
    --blue-400: #4d84c9;
    --blue-100: #dce8f5;
    --blue-50:  #eef4fb;
    --bg:       #f7f9fc;
    --surface:  #ffffff;
    --ink:      #1c2b3a;
    --ink-soft: #52657a;
    --ink-faint:#8a99ab;
    --line:     #e3eaf2;
    --accent:   #e8b931;
    --coral:    #e2574c;
    --radius:   14px;
    --shadow-md: 0 6px 20px rgba(10, 31, 61, 0.10);
    --shadow-lg: 0 14px 40px rgba(10, 31, 61, 0.16);
    --panel-w: 460px;
    --ease: cubic-bezier(.22, .8, .24, 1);

    /* Semantic tokens: everything the night theme changes goes through these. */
    --heading:  var(--navy-800);
    --strong:   var(--navy-700);
    --page-bg:  radial-gradient(ellipse at 60% 45%, #ffffff 0%, var(--bg) 45%, #e6edf6 100%);
    --glass:        rgba(255, 255, 255, .8);
    --glass-strong: rgba(255, 255, 255, .96);
    --warn-bg: #fffbeb;  --warn-line: #f3dc8f;  --warn-ink: #7a5b00;
    --gold-bg: #fff6d6;  --gold-line: #f1d98a;  --gold-ink: #8a6400;
    --coral-bg: #fde9e7; --coral-line: #f5c3be; --coral-ink: #b23a31;
    --wall: #edf1f7;
    --wall-light: radial-gradient(ellipse at 50% 35%, transparent 45%, rgba(10, 31, 61, .08) 100%);
    --frame: #ffffff;    --frame-line: #cfd8e4;
    --floor-a: #dcc095;  --floor-b: #c9a877;
}

/* Night in Seoul: a dim room lit by warm lamps. Contrast stays high; only the surfaces go dark. */
body[data-theme="night"] {
    color-scheme: dark;
    --navy-500: #86b6f6;
    --blue-100: #2f4063;
    --blue-50:  #1e2a45;
    --bg:       #0d1422;
    --surface:  #172136;
    --ink:      #e4eaf4;
    --ink-soft: #aab7cb;
    --ink-faint:#8190a8;
    --line:     #2b3852;
    --shadow-md: 0 6px 20px rgba(0, 0, 0, .38);
    --shadow-lg: 0 14px 40px rgba(0, 0, 0, .5);
    --heading:  #f2f6fc;
    --strong:   #bcd6f9;
    --page-bg:  radial-gradient(ellipse at 60% 45%, #1c2842 0%, #111a2c 55%, #0a101c 100%);
    --glass:        rgba(19, 28, 47, .8);
    --glass-strong: rgba(19, 28, 47, .95);
    --warn-bg: #2c2717;  --warn-line: #66562a;  --warn-ink: #f3d98c;
    --gold-bg: #3a3015;  --gold-line: #6b5827;  --gold-ink: #f4d67e;
    --coral-bg: #36201e; --coral-line: #6b3a35; --coral-ink: #f6a79f;
    --wall: #18213a;
    /* a warm pool of light around the door, as if a lamp hung above it */
    --wall-light: radial-gradient(ellipse 34% 62% at 50% 48%, rgba(255, 190, 120, .2), transparent 100%),
                  radial-gradient(ellipse at 50% 40%, transparent 40%, rgba(4, 8, 18, .45) 100%);
    --frame: #d5dbe6;    --frame-line: #0d1422;
    --floor-a: #7d6549;  --floor-b: #5d4a35;
}

* { box-sizing: border-box; }

html, body { height: 100%; overscroll-behavior: none; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
    margin: 0;
    overflow: hidden;
    font-family: 'Inter', -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--ink);
    background: var(--page-bg);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-family: 'Sora', 'Inter', sans-serif; color: var(--heading); line-height: 1.3; margin: 0; }
a { color: var(--navy-500); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font: inherit; color: inherit; cursor: pointer; touch-action: manipulation; }
a, button { -webkit-tap-highlight-color: transparent; }

/* ---------- Canvas + overlays ---------- */

#scene {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    touch-action: none;
    opacity: 0;
    transition: opacity .9s ease;
    cursor: grab;
}
#scene.ready { opacity: 1; }
#scene.dragging { cursor: grabbing; }
#scene.hovering { cursor: pointer; }

#markers { position: fixed; inset: 0; pointer-events: none; }
#leaders { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; transition: opacity .45s ease 1s; }
#leaders line { stroke: var(--navy-500); stroke-width: 1.5; stroke-opacity: .55; stroke-linecap: round; }
body:not(.labels-in) #leaders, body.is-focused #leaders { opacity: 0; transition-delay: 0s; }

.marker {
    position: absolute;
    left: 0; top: 0;
    width: 0; height: 0;
    padding: 0;
    border: 0;
    background: none;
    pointer-events: none;
    transition: opacity .35s ease;
    will-change: transform;
}
.marker-dot {
    position: absolute;
    left: -10px; top: -10px;
    width: 20px; height: 20px;
    pointer-events: auto;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 0 2px var(--navy-500), var(--shadow-md);
}
.marker-dot::before {
    content: "";
    position: absolute;
    inset: 6px;
    border-radius: 50%;
    background: var(--navy-500);
}
.marker-dot::after {
    content: "";
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    border: 2px solid var(--navy-500);
    animation: pulse 2.4s ease-out infinite;
}
.marker[data-kind="exit"] .marker-dot { box-shadow: 0 0 0 2px var(--ink-faint), var(--shadow-md); }
.marker[data-kind="exit"] .marker-dot::before { background: var(--ink-faint); }
.marker[data-kind="exit"] .marker-dot::after { display: none; }

/* Always-on label next to each dot; JS places it and keeps labels from overlapping. */
.marker-label {
    position: absolute;
    left: 0; top: 0;
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 5px 13px 5px 5px;
    border-radius: 999px;
    background: var(--glass-strong);
    border: 1px solid var(--blue-100);
    color: var(--heading);
    font-size: 14.5px;
    font-weight: 600;
    line-height: 1.3;
    white-space: nowrap;
    box-shadow: var(--shadow-md);
    pointer-events: auto;
    transition:
        opacity .45s ease calc(var(--i) * 90ms),
        scale .45s var(--ease) calc(var(--i) * 90ms),
        background-color .15s ease,
        color .15s ease,
        border-color .15s ease;
}
.marker[data-kind="exit"] .marker-label { padding-left: 13px; color: var(--ink-soft); font-size: 13px; }

/* Tour-order badge, shared by marker labels and the bottom chips. */
.num {
    flex: none;
    display: inline-grid;
    place-items: center;
    width: 22px; height: 22px;
    border-radius: 50%;
    background: var(--navy-600);
    color: #fff;
    font-family: 'Sora', sans-serif;
    font-size: 12px;
    font-weight: 700;
    line-height: 1;
    transition: background-color .15s ease, color .15s ease;
}
body:not(.labels-in) .marker-label { opacity: 0; scale: .8; }

.marker-desc {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    padding: 6px 10px;
    border-radius: 8px;
    background: var(--navy-800);
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    box-shadow: var(--shadow-md);
    opacity: 0;
    translate: 0 -4px;
    transition: opacity .15s ease, translate .15s ease;
    pointer-events: none;
}
.marker[data-side="left"] .marker-desc { left: auto; right: 0; }
.marker[data-side="top"] .marker-desc { left: 50%; translate: -50% -4px; }

.marker:hover, .marker.is-hover { z-index: 2; }
.marker:hover .marker-label,
.marker.is-hover .marker-label,
.marker:focus-visible .marker-label { background: var(--navy-700); border-color: var(--navy-700); color: #fff; }
.marker:hover .num,
.marker.is-hover .num,
.marker:focus-visible .num { background: #fff; color: #163a6b; }
.marker:hover .marker-desc,
.marker.is-hover .marker-desc,
.marker:focus-visible .marker-desc { opacity: 1; translate: 0 0; }
.marker[data-side="top"]:hover .marker-desc,
.marker[data-side="top"].is-hover .marker-desc,
.marker[data-side="top"]:focus-visible .marker-desc { translate: -50% 0; }
.marker:focus-visible { outline: none; }
.marker:focus-visible .marker-dot { box-shadow: 0 0 0 2px var(--navy-500), 0 0 0 6px rgba(42, 99, 173, .3); }
.marker.is-hidden { opacity: 0; }
.marker.is-hidden * { pointer-events: none; }
body.is-focused .marker { opacity: 0; }
body.is-focused .marker * { pointer-events: none; }

@keyframes pulse {
    0%   { transform: scale(1);   opacity: .7; }
    80%  { transform: scale(2.1); opacity: 0; }
    100% { transform: scale(2.1); opacity: 0; }
}

#tooltip {
    position: fixed;
    left: 0; top: 0;
    padding: 5px 10px;
    border-radius: 8px;
    background: rgba(15, 42, 82, .92);
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    pointer-events: none;
    opacity: 0;
    transition: opacity .15s ease;
    white-space: nowrap;
}
#tooltip.show { opacity: 1; }

/* ---------- Top bar ---------- */

.topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 64px;
    padding: 0 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 8;
    pointer-events: none;
}
.topbar > * { pointer-events: auto; }
.top-left { display: flex; align-items: center; gap: 8px; min-width: 0; }
.brand, .clock {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 38px;
    padding: 0 15px;
    border-radius: 999px;
    background: var(--glass);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--line);
    white-space: nowrap;
}
.brand { font-family: 'Sora', sans-serif; font-weight: 700; font-size: 16.5px; color: var(--heading); }
.brand span { font-weight: 600; color: var(--ink-soft); }
.brand:hover { text-decoration: none; }
.clock { font-size: 13.5px; font-weight: 600; color: var(--ink-soft); }
.clock:hover { background: var(--surface); }
.clock-time { color: var(--heading); font-variant-numeric: tabular-nums; }
/* sun by day, crescent by night */
.clock-icon { flex: none; width: 14px; height: 14px; border-radius: 50%; background: #f5b52e; box-shadow: 0 0 0 3px rgba(245, 181, 46, .25); }
body[data-theme="night"] .clock-icon { background: none; box-shadow: inset -4px -2px 0 0 #ffe29a; transform: rotate(-20deg); }
.top-links { display: flex; gap: 6px; }
.top-links :is(a, button) {
    white-space: nowrap;
    padding: 7px 14px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    color: var(--strong);
    background: var(--glass);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--line);
}
.top-links :is(a, button):hover { background: var(--surface); text-decoration: none; }

/* ---------- Lobby ----------
   The wall outside the office. The doorway is a transparent hole (the wall itself is the doorway's
   huge box-shadow), so the 3D canvas behind shows through as soon as the door leaf swings open. */

.lobby {
    --floor-h: 13vh;
    --door-h: clamp(300px, 62vh, 640px);
    position: fixed;
    inset: 0;
    z-index: 6;
    overflow: hidden;
    transition: transform .7s var(--ease), opacity .4s ease, visibility 0s;
}
/* Entering: the door swings, then the whole wall rushes past as we walk through the doorway. */
body.inside .lobby {
    transform: scale(7);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform 1s var(--ease) .35s, opacity .55s ease .7s, visibility 0s linear 1.3s;
}
.lobby.no-anim, .lobby.no-anim * { transition: none !important; }
.lobby::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    background: var(--wall-light);
}

.lobby-row {
    position: absolute;
    inset: 64px 0 var(--floor-h) 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(24px, 4vw, 64px);
    padding: 0 24px;
}
.lobby-floor {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: var(--floor-h);
    z-index: 1;
    border-top: 8px solid var(--frame);
    box-shadow: 0 -1px 0 var(--frame-line);
    background:
        repeating-linear-gradient(90deg, transparent 0 159px, rgba(120, 85, 45, .2) 159px 160px),
        linear-gradient(var(--floor-a), var(--floor-b));
}

.eyebrow {
    margin: 0 0 12px;
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--navy-500);
}

.plate, .board {
    position: relative;
    z-index: 1;
    flex: none;
    width: clamp(270px, 26vw, 360px);
    padding: 22px;
    border-radius: 18px;
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
}
:where(.plate, .board) :where(p, ul, h2, h3) { margin: 0; }

.plate-head { display: flex; align-items: center; gap: 14px; }
.plate-head img { flex: none; width: 68px; height: 68px; border-radius: 50%; object-fit: cover; object-position: 50% 20%; box-shadow: 0 0 0 3px var(--surface), 0 0 0 4px var(--blue-100); }
.plate h1 { font-size: 27px; letter-spacing: -.01em; }
.plate-role { margin-top: 2px; font-size: 14.5px; color: var(--ink-soft); }
.plate-affil { margin-top: 12px; font-size: 14.5px; color: var(--ink-soft); }
.plate-tagline { margin-top: 10px; font-size: 15px; }
.plate-stats { list-style: none; padding: 0; margin-top: 16px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.plate-stats li { padding: 10px 10px 9px; border-radius: 12px; background: var(--blue-50); border: 1px solid var(--blue-100); }
.plate-stats b { display: block; font-family: 'Sora', sans-serif; font-size: 21px; line-height: 1.1; color: var(--strong); }
.plate-stats span { display: block; margin-top: 4px; font-size: 11.5px; line-height: 1.3; color: var(--ink-soft); }
.plate-links { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.plate-links .btn { padding: 8px 14px; font-size: 13.5px; }
.visitors { display: flex; align-items: center; gap: 8px; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); font-size: 13px; color: var(--ink-soft); }
.visitors[hidden] { display: none; }
.visitors b { font-family: 'Sora', sans-serif; font-size: 14.5px; color: var(--heading); }
.visitors .dot { flex: none; width: 8px; height: 8px; border-radius: 50%; background: #3fb56b; box-shadow: 0 0 0 3px rgba(63, 181, 107, .2); }
.only-sm { display: none; margin-top: 12px; font-size: 13.5px; }

.note { padding: 14px; border-radius: 12px; background: var(--warn-bg); border: 1px solid var(--warn-line); }
.note .phd-badge { padding: 3px 10px; font-size: 12px; background: var(--surface); }
.note h2 { margin: 9px 0 4px; font-size: 16.5px; }
.note p { font-size: 13.5px; line-height: 1.5; color: var(--ink-soft); }
.board-sub { margin: 16px 0 6px; font-family: 'Inter', sans-serif; font-size: 11.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); }
.board-news { list-style: none; padding: 0; }
.board-news button {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 8px;
    width: calc(100% + 16px);
    margin: 0 -8px;
    padding: 6px 8px;
    border: 0;
    border-radius: 8px;
    background: none;
    text-align: left;
    font-size: 13.5px;
    line-height: 1.4;
    color: var(--ink);
}
.board-news button:hover { background: var(--blue-50); }
.board-news time { font-size: 12.5px; font-weight: 700; line-height: 1.5; color: var(--navy-500); font-variant-numeric: tabular-nums; }
.board-directory { display: flex; flex-wrap: wrap; gap: 6px; }
.board-directory button {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 11px 3px 3px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: var(--surface);
    font-size: 13px;
    font-weight: 600;
    color: var(--heading);
}
.board-directory button:hover { background: var(--blue-50); border-color: var(--blue-100); }
.board-directory .num { width: 20px; height: 20px; font-size: 11px; }

/* The door */
.door { align-self: flex-end; flex: none; display: flex; flex-direction: column-reverse; align-items: center; gap: 14px; }
.doorway {
    position: relative;
    width: calc(var(--door-h) * .5);
    height: var(--door-h);
    border: 10px solid var(--frame);
    border-bottom: 0;
    box-shadow: inset 0 0 0 1px var(--frame-line), 0 0 0 1px var(--frame-line), 0 0 0 200vmax var(--wall);
    perspective: 1400px;
}
.door-leaf {
    position: absolute;
    inset: 0;
    width: 100%;
    padding: 0;
    border: 0;
    background: linear-gradient(165deg, #2860a8 0%, var(--navy-600) 45%, #1a4379 100%);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .08), inset -10px 0 24px rgba(10, 31, 61, .25);
    transform-origin: left center;
    transition: transform .8s var(--ease);
}
@media (hover: hover) { .door:hover .door-leaf { transform: rotateY(14deg); } }
.door-leaf:focus-visible { transform: rotateY(14deg); }
.door-leaf:focus-visible { outline: 3px solid var(--accent); outline-offset: -3px; }
/* The open leaf fades before the zoom, or it would sweep past the camera as a giant blue slab. */
body.inside .door-leaf { transform: rotateY(82deg); opacity: 0; transition: transform .8s var(--ease), opacity .3s ease .4s; }
.door-sign {
    position: absolute;
    left: 50%; top: 20%;
    transform: translateX(-50%);
    padding: 10px 16px 9px;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 3px 10px rgba(10, 31, 61, .3);
    white-space: nowrap;
    text-align: center;
}
.door-sign b { display: block; font-family: 'Sora', sans-serif; font-size: 16px; color: #0f2a52; }
.door-sign small { display: block; margin-top: 1px; font-size: 11.5px; font-weight: 600; color: #2e9a59; }
.door-inset {
    position: absolute;
    left: 14%; right: 14%; bottom: 7%;
    height: 32%;
    border-radius: 6px;
    background: rgba(255, 255, 255, .06);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .12);
}
.door-knob {
    position: absolute;
    right: 9%; top: 53%;
    width: 20px; height: 20px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, #ffe9a3, var(--accent) 55%, #b88a14);
    box-shadow: 0 2px 5px rgba(10, 31, 61, .45);
}
.door-knob::after {
    content: "";
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    border: 2px solid var(--accent);
    animation: pulse 2.4s ease-out infinite;
}
.door-cta {
    position: relative;
    z-index: 1;
    padding: 9px 18px;
    border: 0;
    border-radius: 999px;
    background: var(--navy-600);
    color: #fff;
    font-size: 14.5px;
    font-weight: 600;
    box-shadow: var(--shadow-md);
    transition: background .2s ease;
}
.door:hover .door-cta { background: var(--navy-700); }
.door-cta span { display: inline-block; animation: nudge 1.6s ease-in-out infinite; }
@keyframes nudge { 50% { transform: translateX(4px); } }

body:not(.inside) :is(.chips, .hint, .only-inside) { display: none; }

.phd-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 6px 12px;
    border-radius: 999px;
    background: var(--warn-bg);
    border: 1px solid var(--warn-line);
    color: var(--warn-ink);
    font-size: 13px;
    font-weight: 600;
}
.phd-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: #3fb56b; box-shadow: 0 0 0 3px rgba(63, 181, 107, .2); flex: none; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 14.5px;
    font-weight: 600;
    border: 1px solid transparent;
    transition: background .2s ease, transform .2s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--navy-600); color: #fff; }
.btn-primary:hover { background: var(--navy-700); }
.btn-ghost { background: var(--surface); color: var(--strong); border-color: var(--line); }
.btn-ghost:hover { background: var(--blue-50); }

/* ---------- Section chips ---------- */

.chips {
    position: fixed;
    left: 16px; right: 16px;
    bottom: 22px;
    width: fit-content;
    margin-inline: auto;
    display: flex;
    gap: 4px;
    padding: 5px;
    border-radius: 999px;
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    z-index: 4;
    overflow-x: auto;
    scrollbar-width: none;
    transition: right .45s var(--ease), transform .45s var(--ease);
}
.chips::-webkit-scrollbar { display: none; }
/* With a panel open the bar centres itself in the space left of it, and scrolls if that is too narrow. */
body.is-focused .chips { right: calc(var(--panel-w) + 28px); }
.chip-btn {
    flex: none;
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 6px 14px 6px 7px;
    border: 0;
    border-radius: 999px;
    background: transparent;
    font-size: 14px;
    font-weight: 600;
    color: var(--ink-soft);
    transition: background .2s ease, color .2s ease;
}
.chip-btn:hover { background: var(--blue-50); color: var(--strong); }
.chip-tour {
    flex: none;
    margin-right: 4px;
    padding: 7px 15px;
    border: 0;
    border-radius: 999px;
    background: var(--navy-600);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
}
.chip-tour:hover { background: var(--navy-700); }

.hint {
    position: fixed;
    left: 16px; right: 16px;
    bottom: 80px;
    width: fit-content;
    margin: 0 auto;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(15, 42, 82, .9);
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    text-align: center;
    pointer-events: none;
    opacity: 0;
    z-index: 4;
}
body.labels-in .hint { animation: hint 8s ease .4s both; }
body.is-focused .hint { display: none; }
@keyframes hint { 0% { opacity: 0; } 6%, 85% { opacity: 1; } 100% { opacity: 0; } }

.chip-btn .num { width: 20px; height: 20px; font-size: 11px; background: var(--blue-100); color: var(--strong); }
.chip-btn[aria-current="true"] { background: var(--navy-600); color: #fff; }
.chip-btn[aria-current="true"] .num { background: #fff; color: #163a6b; }

/* ---------- Panel ---------- */

.panel {
    position: fixed;
    top: 12px; right: 12px; bottom: 12px;
    width: var(--panel-w);
    display: flex;
    flex-direction: column;
    border-radius: 20px;
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--line);
    z-index: 9;
    transform: translateX(calc(100% + 24px));
    transition: transform .5s var(--ease), visibility 0s linear .5s;
    visibility: hidden;
}
.panel.open { transform: none; visibility: visible; transition: transform .5s var(--ease), visibility 0s; }
.panel-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 22px 24px 14px;
    border-bottom: 1px solid var(--line);
}
.panel-eyebrow { margin: 0 0 2px; font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--navy-500); }
.panel-title { font-size: 26px; outline: none; }
.panel-close {
    flex: none;
    width: 36px; height: 36px;
    border-radius: 50%;
    border: 1px solid var(--line);
    background: var(--surface);
    font-size: 22px;
    line-height: 1;
    color: var(--ink-soft);
}
.panel-close:hover { background: var(--blue-50); }
.panel-body { flex: 1; overflow-y: auto; padding: 18px 24px 24px; overscroll-behavior: contain; }
.panel-body > * + * { margin-top: 14px; }
:where(.panel-body) :where(p, ul, h3) { margin: 0; }
.panel-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid var(--line);
}
.foot-btn { border: 0; background: none; padding: 8px 10px; border-radius: 10px; font-size: 14px; font-weight: 600; color: var(--strong); }
.foot-btn:hover { background: var(--blue-50); }
.foot-count { font-size: 13px; color: var(--ink-faint); font-variant-numeric: tabular-nums; }

/* ---------- Panel content ---------- */

.p-sub { font-size: 15px; letter-spacing: .02em; margin-top: 22px !important; }
.p-note { font-size: 14px; color: var(--ink-soft); }
.p-lead { font-size: 16.5px; }

.chip {
    display: inline-block;
    padding: 2px 9px;
    margin-right: 6px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    vertical-align: middle;
}
.chip-venue { background: var(--blue-50); color: var(--strong); border: 1px solid var(--blue-100); }
.chip-spotlight { background: var(--gold-bg); color: var(--gold-ink); border: 1px solid var(--gold-line); }
.chip-highlight { background: var(--coral-bg); color: var(--coral-ink); border: 1px solid var(--coral-line); }
.chip-preprint { background: var(--blue-50); color: var(--ink-soft); border: 1px solid var(--line); }

.timeline, .plain-list, .recog, .contact-list { list-style: none; margin: 0; padding: 0; }
.timeline li { position: relative; padding: 0 0 14px 20px; border-left: 2px solid var(--blue-100); margin-left: 5px; }
.timeline li::before { content: ""; position: absolute; left: -7px; top: 5px; width: 12px; height: 12px; border-radius: 50%; background: var(--surface); border: 2px solid var(--navy-500); }
.timeline li:last-child { padding-bottom: 0; }
.timeline b, .plain-list li > b { display: block; font-weight: 600; font-size: 15px; color: var(--heading); }
.timeline span, .plain-list li > span { display: block; font-size: 13.5px; color: var(--ink-soft); }
.plain-list li { padding: 10px 0; border-top: 1px solid var(--line); }
.plain-list li > span b { display: inline; }

.ri { padding: 16px 18px; border-radius: var(--radius); background: var(--blue-50); border: 1px solid var(--blue-100); }
.ri-next { background: var(--coral-bg); border-color: var(--coral-line); }
.ri-num { font-family: 'Sora', sans-serif; font-size: 13px; font-weight: 700; color: var(--navy-500); }
.ri-next .ri-num { color: var(--coral); }
.ri h3 { font-size: 17px; margin: 2px 0 6px; }
.ri p { font-size: 14.5px; color: var(--ink-soft); }

.pub { display: grid; grid-template-columns: 104px 1fr; gap: 14px; padding: 14px 0; border-top: 1px solid var(--line); }
.pub h3 { font-size: 14.5px; line-height: 1.4; margin-bottom: 4px; }
.pub-thumb { width: 104px; height: 72px; border-radius: 10px; object-fit: cover; background: var(--blue-50); border: 1px solid var(--line); }
.pub-thumb-empty { display: grid; place-items: center; font-family: 'Sora', sans-serif; font-size: 13px; font-weight: 700; color: var(--blue-400); }
.pub-authors { font-size: 13px; color: var(--ink-soft); }
.pub-authors b { color: var(--ink); }
.pub-venue { margin-top: 6px !important; font-size: 12.5px; color: var(--ink-soft); }
.pub-links { margin-top: 6px !important; display: flex; flex-wrap: wrap; gap: 12px; font-size: 13.5px; font-weight: 600; }
.pub-featured { display: block; border-top: 0; padding-top: 0; }
.pub-featured video { width: 100%; border-radius: 12px; display: block; margin-bottom: 12px; background: #000; }
.pub-featured h3 { font-size: 16px; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 8px; }
.stats div { padding: 14px 12px; border-radius: var(--radius); background: var(--blue-50); border: 1px solid var(--blue-100); }
.stats b { display: block; font-family: 'Sora', sans-serif; font-size: 26px; line-height: 1.1; color: var(--strong); }
.stats span { display: block; margin-top: 4px; font-size: 12.5px; line-height: 1.35; color: var(--ink-soft); }
.recog li { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; padding: 14px 0; border-top: 1px solid var(--line); }
.recog li:first-child { border-top: 0; }
.recog b { font-weight: 600; color: var(--heading); }
.recog-sub { font-size: 13px; color: var(--ink-faint); }

.news { padding: 14px 0; border-top: 1px solid var(--line); }
.news:first-child { border-top: 0; padding-top: 0; }
.news.pinned { padding: 14px 16px; border: 1px solid var(--warn-line); border-radius: var(--radius); background: var(--warn-bg); }
.news-date { font-size: 12.5px; font-weight: 700; letter-spacing: .06em; color: var(--navy-500); }
.news h3 { font-size: 15.5px; margin: 2px 0 6px; }
.news h3 .chip { margin: 2px 0 0 6px; }
.news p { font-size: 14.5px; color: var(--ink-soft); }

.callout { padding: 18px; border-radius: var(--radius); background: var(--warn-bg); border: 1px solid var(--warn-line); }
.callout > * + * { margin-top: 10px !important; }

.contact-list li { display: grid; grid-template-columns: 80px 1fr; gap: 8px; padding: 11px 0; border-top: 1px solid var(--line); font-size: 15px; }
.contact-list li:first-child { border-top: 0; }
.contact-list span { color: var(--ink-faint); font-size: 13.5px; font-weight: 600; }
.contact-actions { display: flex; gap: 8px; }

.scene-error {
    position: fixed;
    left: 50%;
    bottom: 96px;
    transform: translateX(-50%);
    width: min(440px, calc(100vw - 32px));
    margin: 0;
    padding: 14px 16px;
    border-radius: 14px;
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    font-size: 14px;
    color: var(--ink);
    z-index: 5;
}
.scene-error[hidden] { display: none; }
.scene-error small { display: block; margin-top: 6px; font-size: 12px; color: var(--ink-faint); word-break: break-word; }

.noscript { position: fixed; inset: auto 16px 16px; padding: 14px; background: #fff; border-radius: 12px; box-shadow: var(--shadow-md); z-index: 10; }

/* ---------- Small screens ---------- */

/* Phones in either orientation: a compact top bar. */
@media (max-width: 900px), (max-height: 560px) {
    .topbar { height: 52px; padding: 0 12px; }
    .top-left { gap: 6px; }
    .top-links { gap: 5px; }
    .top-links :is(a, button) { padding: 6px 11px; font-size: 13px; }
    .brand span, .clock-place, .hide-sm { display: none; }
    .brand, .clock { height: 34px; padding: 0 12px; }
    .brand { font-size: 15px; }
    .only-sm { display: block; }
}
@media (max-width: 380px) {
    .brand, .clock { padding: 0 10px; }
    .brand { font-size: 14px; }
    .clock { font-size: 12.5px; gap: 6px; }
}

/* Lobby stacks into one scrolling column — who I am, the door, then the notice board — whenever
   the three can't stand side by side: narrow screens, and phones held sideways. */
@media (max-width: 820px), (max-height: 560px) {
    .lobby { --door-h: 300px; overflow-y: auto; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; }
    .lobby-row { position: static; flex-direction: column; gap: 22px; padding: 64px 16px calc(32px + env(safe-area-inset-bottom)); }
    .lobby-floor { display: none; }
    .plate, .board { width: 100%; max-width: 440px; padding: 18px; }
    .plate h1 { font-size: 24px; }
    .door { align-self: center; }
    .doorway { width: calc(var(--door-h) * .62); border-bottom: 10px solid var(--frame); }
    .door-sign b { font-size: 15px; }
}

@media (max-width: 820px) {
    :root { --panel-w: 100vw; }

    .hint { bottom: calc(66px + env(safe-area-inset-bottom)); font-size: 12px; }
    .btn { padding: 8px 14px; font-size: 13.5px; }
    .phd-badge { font-size: 12px; padding: 5px 10px; }

    /* Labels stay big enough to tap. */
    .marker-dot { width: 16px; height: 16px; left: -8px; top: -8px; }
    .marker-dot::before { inset: 5px; }
    .marker-label { gap: 5px; padding: 4px 10px 4px 4px; font-size: 12.5px; }
    .marker[data-kind="exit"] .marker-label { padding-left: 10px; font-size: 12px; }
    .marker-label .num { width: 19px; height: 19px; font-size: 10.5px; }
    .chip-btn { padding: 6px 12px 6px 6px; font-size: 13px; }
    .marker-desc { display: none; }

    .chips { bottom: calc(12px + env(safe-area-inset-bottom)); }
    body.is-focused .chips { right: 16px; transform: translateY(200%); }

    .panel {
        top: auto; left: 0; right: 0; bottom: 0;
        width: auto;
        height: 62vh;
        height: 62dvh;
        border-radius: 20px 20px 0 0;
        transform: translateY(105%);
    }
    .panel-head { padding: 16px 18px 10px; }
    .panel-title { font-size: 22px; }
    .panel-body { padding: 14px 18px calc(20px + env(safe-area-inset-bottom)); }
    .pub { grid-template-columns: 84px 1fr; }
    .pub-thumb { width: 84px; height: 60px; }
}

/* A phone held sideways keeps the side panel, just slimmer, and drops the hint. */
@media (max-height: 560px) and (min-width: 821px) {
    :root { --panel-w: min(420px, 52vw); }
    .panel { top: 6px; right: 6px; bottom: 6px; }
    .panel-head { padding: 14px 18px 10px; }
    .panel-title { font-size: 21px; }
    .chips { bottom: 10px; }
    .hint { display: none; }
}

@media (max-height: 760px) and (min-height: 561px) and (min-width: 821px) {
    .plate-tagline, .board-dir { display: none; }
    .plate, .board { padding: 18px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
}