/* ==================================================================
   AISO MATTER ∞ - ELEMENTS ALIVE: material identity, Element Studio, theater, Discovery Wall
   ================================================================== */

/* tile layer 2: material identity chip */
.pt-el .mat { position: absolute; right: 7%; top: 7%; width: max(7px, 0.62cqi); aspect-ratio: 1; border-radius: 50%; background: var(--mat); box-shadow: 0 0 0 1px rgba(255, 255, 255, .14), 0 1px 3px rgba(0, 0, 0, .6); pointer-events: none; transition: transform .16s; }
.pt-el[data-look="semi"] .mat, .pt-el[data-look="crystal"] .mat { border-radius: 2px; transform: rotate(45deg) scale(.85); }
.pt-el[data-look="unknown"] .mat { box-shadow: 0 0 0 1px rgba(160, 180, 210, .35); }
.pt-el:hover .mat { transform: scale(1.25); }
.pt-el[data-look="semi"]:hover .mat, .pt-el[data-look="crystal"]:hover .mat { transform: rotate(45deg) scale(1.1); }
.pt-board.chips .pt-el .mat, .pt-board.tiny .pt-el .mat { display: none; }
.pt-el .ra { right: 20%; }

/* Appearance lens: the whole tile becomes the material, the light follows the pointer */
.pt-board.mode-material .pt-el { background: radial-gradient(circle at var(--mx, 35%) var(--my, 28%), rgba(255, 255, 255, .28), transparent 45%), linear-gradient(180deg, rgba(8, 11, 17, .05), rgba(8, 11, 17, .62) 78%), var(--mat), #121824; border-color: rgba(255, 255, 255, .14); }
.pt-board.mode-material .pt-el[data-look="gas"], .pt-board.mode-material .pt-el[data-look="noble"] { background: radial-gradient(circle at 50% 46%, color-mix(in oklab, var(--c) 34%, transparent), transparent 62%), #0e131c; }
.pt-board.mode-material .pt-el[data-look="noble"] { box-shadow: inset 0 0 22px -6px var(--c); }
.pt-board.mode-material .pt-el[data-look="unknown"] { background: repeating-linear-gradient(135deg, #141a25 0 4px, #0f141d 4px 8px); }
.pt-board.mode-material .pt-el .sym { color: #fff; text-shadow: 0 1px 3px rgba(0, 0, 0, .8); }
.pt-board.mode-material .pt-el .nm, .pt-board.mode-material .pt-el .val { color: #f1f4f8; text-shadow: 0 1px 2px rgba(0, 0, 0, .9); }
.pt-board.mode-material .pt-el .mat { display: none; }
.pt-board.mode-material .pt-el::before { opacity: .5; }
.pt-legend-sw { display: inline-flex; align-items: center; gap: 7px; padding: 5px 10px 5px 6px; border-radius: 8px; border: 1px solid var(--pt-line); background: var(--pt-surface); color: #c9d1dd; font: 500 12px "IBM Plex Sans", sans-serif; }
.pt-legend-sw i { width: 16px; height: 16px; border-radius: 50%; box-shadow: 0 0 0 1px rgba(255, 255, 255, .15); }

/* quality */
.pt-quality { display: inline-flex; align-items: center; gap: 4px; margin-top: 6px; }
.pt-quality span { font: 500 10px "IBM Plex Mono", monospace; letter-spacing: 1.4px; text-transform: uppercase; color: var(--pt-faint); margin-right: 4px; }
.pt-quality .pt-btn { padding: 3px 7px; font: 500 10.5px "IBM Plex Mono", monospace; letter-spacing: .5px; }

/* Element Studio */
.pt-stu { position: relative; padding: 0 2px 24px 8px; }
.pt-stu-head { display: grid; grid-template-columns: auto 1fr auto; gap: 14px 18px; align-items: center; margin-bottom: 14px; }
.pt-stu-tile { position: relative; width: 78px; aspect-ratio: 1 / 1.08; border-radius: 12px; padding: 8px 9px; display: flex; flex-direction: column; justify-content: space-between; border: 1px solid color-mix(in oklab, var(--c) 60%, transparent); background: linear-gradient(180deg, color-mix(in oklab, var(--c) 22%, #151c29), #0f141d 90%); }
.pt-stu-tile .z { font: 500 11px "IBM Plex Mono", monospace; color: var(--pt-muted); }
.pt-stu-tile .sym { font: 600 32px/1 "IBM Plex Sans", sans-serif; color: color-mix(in oklab, var(--c) 40%, #fff); }
.pt-stu-tile .mat { position: absolute; right: 8px; top: 8px; width: 16px; height: 16px; border-radius: 50%; background: var(--mat); box-shadow: 0 0 0 1px rgba(255, 255, 255, .18); }
.pt-stu-id h3 { margin: 0 0 6px !important; font: 400 30px/1 "IBM Plex Sans", sans-serif !important; color: #fff !important; text-transform: none !important; }
.pt-stu-id .pt-chip { margin-top: 0; }
.pt-stu-look { margin-left: 8px; font: 500 11px "IBM Plex Mono", monospace; color: var(--pt-muted); text-transform: uppercase; letter-spacing: 1px; }
.pt-stu-id .pt-cfg { margin-top: 6px; font-size: 13.5px; color: #c9d4e6; }
.pt-stu-modes { display: grid; grid-template-columns: repeat(5, 1fr); gap: 2px; padding: 3px; margin-bottom: 14px; border-radius: 12px; background: var(--pt-surface); border: 1px solid var(--pt-line); }
.pt-stu-modes button { border: 0; background: transparent; color: var(--pt-muted); cursor: pointer; padding: 10px 6px; border-radius: 9px; font: 600 12px "IBM Plex Mono", monospace; letter-spacing: 2px; text-transform: uppercase; transition: background .2s, color .2s; }
.pt-stu-modes button:hover { color: #fff; }
.pt-stu-modes button[aria-selected="true"] { color: #fff; background: linear-gradient(180deg, color-mix(in oklab, var(--c) 26%, #1c2436), #161d2b); box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--c) 45%, transparent); }
.pt-stu-modes button:focus-visible { outline: 2px solid var(--pt-accent); outline-offset: -2px; }
.pt-stu-stage { transition: opacity .2s, transform .25s cubic-bezier(.4, 0, .2, 1), filter .2s; transform-origin: 50% 30%; }
.pt-stu-stage.is-out { opacity: 0; transform: scale(.97); filter: blur(3px); }
.pt-stu-inner > * + * { margin-top: 10px; }
.pt-stu-canvas { position: relative; height: 380px; border-radius: 14px; border: 1px solid var(--pt-line); overflow: hidden; background: radial-gradient(ellipse at 50% 30%, #18202f, #07090e 75%); }
.pt-stu-canvas canvas { display: block; width: 100%; height: 100%; }
.pt-stu-scale { position: absolute; left: 12px; top: 10px; font: 500 11px "IBM Plex Mono", monospace; color: #dfe6f0; background: rgba(10, 14, 21, .72); border: 1px solid var(--pt-line); border-radius: 6px; padding: 4px 8px; }
.pt-stu-temp { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.pt-stu-temp label { font: 500 10.5px "IBM Plex Mono", monospace; letter-spacing: 1.4px; text-transform: uppercase; color: var(--pt-faint); }
.pt-stu-temp input { flex: 1; min-width: 160px; accent-color: #39c9d9; }
.pt-stu-temp output { font: 400 13px "IBM Plex Mono", monospace; color: var(--pt-muted); }
.pt-stu-temp output b { color: #fff; font-size: 16px; font-weight: 500; }
.pt-phase { display: inline-block; padding: 2px 8px; border-radius: 99px; font: 600 11px "IBM Plex Mono", monospace; text-transform: uppercase; letter-spacing: 1px; }
.pt-phase-s { background: rgba(142, 167, 191, .2); color: #c9d6e6; }
.pt-phase-l { background: rgba(57, 201, 217, .18); color: #7fe3ee; }
.pt-phase-g { background: rgba(255, 181, 71, .18); color: #ffcc80; }
.pt-phase-u { background: rgba(93, 103, 120, .3); color: #8c97a8; }
.pt-stu-pick { margin: 6px 0 0; font: 400 12px "IBM Plex Mono", monospace; color: var(--pt-muted); min-height: 18px; }
.pt-stu-none { padding: 26px 20px; border: 1px dashed var(--pt-line2); border-radius: 14px; text-align: center; color: var(--pt-muted); }
.pt-stu-none b { display: block; color: #fff; font: 500 16px "IBM Plex Sans", sans-serif; margin-bottom: 6px; }
.pt-stu-none p { margin: 0; font-size: 13px; }
.pt-stu-spec { border-radius: 12px; overflow: hidden; border: 1px solid var(--pt-line); background: #05070b; }
.pt-stu-spec canvas { display: block; width: 100%; }
.pt-select { background: var(--pt-surface); color: #fff; border: 1px solid var(--pt-line2); border-radius: 8px; padding: 6px 8px; font: 500 12.5px "IBM Plex Sans", sans-serif; max-width: 220px; }

/* property dashboard */
.pt-dp { display: flex; flex-direction: column; gap: 4px; }
.pt-dpctx { margin-bottom: 8px; }
.pt-dprow { padding: 8px 0; border-bottom: 1px solid var(--pt-line); }
.pt-dprow-h { display: flex; justify-content: space-between; align-items: baseline; }
.pt-dprow-h span { font-size: 13px; color: #c9d1dd; }
.pt-dprow-h small { color: var(--pt-faint); font-size: 11px; }
.pt-dprow-h b { font: 500 14px "IBM Plex Mono", monospace; color: #fff; }
.pt-dpsvg { width: 100%; height: 36px; display: block; margin: 4px 0 2px; }
.pt-dpsvg .o { fill: rgba(160, 180, 210, .28); }
.pt-dpsvg .g { stroke: rgba(0, 0, 0, .5); stroke-width: .6; }
.pt-dpsvg line.me { stroke: #fff; stroke-width: 1.5; }
.pt-dpsvg circle.me { fill: var(--c); stroke: #fff; stroke-width: 2; }
.pt-dprow-f { display: flex; justify-content: space-between; gap: 10px; font: 400 10.5px "IBM Plex Mono", monospace; color: var(--pt-faint); }
.pt-dprow-f span:nth-child(2) { color: var(--pt-muted); text-align: center; }

/* comparison theater */
.pt-theater { margin-top: 16px; }
.pt-th-row { margin-bottom: 12px; }
.pt-th-row > span { display: block; margin-bottom: 6px; font: 500 10.5px "IBM Plex Mono", monospace; letter-spacing: 1.4px; text-transform: uppercase; color: var(--pt-faint); }
.pt-th-grid { display: grid; gap: 8px; }
.pt-th-grid figure { margin: 0; border: 1px solid var(--pt-line); border-radius: 12px; overflow: hidden; background: radial-gradient(ellipse at 50% 30%, #18202f, #07090e 75%); }
.pt-th-grid canvas { display: block; width: 100%; height: 210px; }
.pt-th-grid figcaption { padding: 6px 10px; font: 400 11px "IBM Plex Mono", monospace; color: var(--pt-muted); border-top: 1px solid var(--pt-line); }
.pt-th-grid .pt-stu-none { border: 0; height: 210px; display: flex; flex-direction: column; justify-content: center; }

/* Discovery Wall */
.pt-wall { padding: 4px 0 30px; }
.pt-wall-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; margin-bottom: 16px; }
.pt-wall-h { margin: 18px 0 10px !important; font: 500 12px "IBM Plex Mono", monospace !important; letter-spacing: 1.6px; text-transform: uppercase !important; color: var(--pt-muted) !important; }
.pt-wall-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); gap: 10px; }
.pt-wcard { position: relative; text-align: left; cursor: pointer; border: 1px solid var(--pt-line); border-radius: 14px; padding: 12px 12px 14px; min-height: 230px; display: flex; flex-direction: column; gap: 4px; color: #dfe6f0;
  background: linear-gradient(180deg, color-mix(in oklab, var(--c) 9%, #121824), #0d121b 70%); content-visibility: auto; contain-intrinsic-size: 168px 230px; transition: border-color .16s, transform .16s, box-shadow .16s; }
.pt-wcard:hover, .pt-wcard:focus-visible { border-color: color-mix(in oklab, var(--c) 60%, transparent); transform: translateY(-2px); box-shadow: 0 14px 30px -16px #000, 0 0 30px -18px var(--c); outline: none; }
.pt-wcard-mat { width: 64px; height: 64px; border-radius: 50%; background: var(--mat); margin: 2px 0 8px; box-shadow: 0 8px 18px -8px #000, 0 0 0 1px rgba(255, 255, 255, .1); }
.pt-wcard-mat[data-look="semi"], .pt-wcard-mat[data-look="crystal"] { border-radius: 10px; transform: rotate(45deg) scale(.82); }
.pt-wcard-mat[data-look="gas"], .pt-wcard-mat[data-look="noble"] { box-shadow: 0 0 0 1px rgba(220, 230, 245, .25), inset 0 0 18px rgba(255, 255, 255, .06); }
.pt-wcard-mat[data-look="noble"] { box-shadow: 0 0 26px -4px var(--c), 0 0 0 1px rgba(220, 230, 245, .25); }
.pt-wcard-z { position: absolute; right: 12px; top: 12px; font: 500 11px "IBM Plex Mono", monospace; color: var(--pt-muted); }
.pt-wcard-sym { font: 600 26px/1 "IBM Plex Sans", sans-serif; color: color-mix(in oklab, var(--c) 40%, #fff); }
.pt-wcard-name { font: 500 14px "IBM Plex Sans", sans-serif; color: #fff; }
.pt-wcard-look { font: 500 10px "IBM Plex Mono", monospace; letter-spacing: 1px; text-transform: uppercase; color: var(--pt-faint); }
.pt-wcard-fact { margin-top: 4px; font-size: 12px; line-height: 1.45; color: var(--pt-muted); display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }

@media (max-width: 900px) {
  .pt-stu-head { grid-template-columns: auto 1fr; }
  .pt-stu-head .pt-lab-nav { grid-column: 1 / -1; margin-left: 0; }
  .pt-stu-modes button { letter-spacing: .5px; font-size: 10.5px; }
  .pt-stu-canvas { height: 300px; }
}
@media (prefers-reduced-motion: reduce) {
  .pt-stu-stage { transition: none; }
}