/* Shared GSPE product-viewer interface contract. Product CSS supplies only scene-specific details. */
:root{
  --gspe-ink:#0c1925;--gspe-muted:#71808c;--gspe-navy:#163e70;--gspe-blue:#238ad1;
  --gspe-line:rgba(22,62,112,.18);--gspe-panel:rgba(250,252,253,.86);--gspe-page:#eef3f6;
  --gspe-stage:radial-gradient(circle at 62% 42%,#fff 0,#edf3f6 48%,#dfe8ed 100%);
  --gspe-shadow:rgba(34,61,83,.14);--gspe-select:#e6edf2;--gspe-button:#fff;--gspe-cyan:#238ad1;--gspe-panel-solid:#f8fbfd;
  --ink:var(--gspe-ink);--muted:var(--gspe-muted);--navy:var(--gspe-navy);--navy-deep:#082847;
  --blue:var(--gspe-blue);--accent:var(--gspe-navy);--accent-bright:var(--gspe-blue);
  --line:var(--gspe-line);--panel:var(--gspe-panel);--page:var(--gspe-page);--paper:var(--gspe-page);
  --stage:var(--gspe-stage);--shadow:var(--gspe-shadow);--select:var(--gspe-select);--button-text:var(--gspe-button);
}
html[data-theme="dark"]{
  --gspe-ink:#eef4f8;--gspe-muted:#8fa0ad;--gspe-navy:#55cfff;--gspe-blue:#55cfff;
  --gspe-line:rgba(112,185,225,.20);--gspe-panel:rgba(10,19,28,.84);--gspe-page:#081019;
  --gspe-stage:radial-gradient(circle at 62% 42%,#213746 0,#0c1923 48%,#060c12 100%);
  --gspe-shadow:rgba(0,0,0,.30);--gspe-select:#101f2b;--gspe-button:#07111a;--gspe-cyan:#55cfff;--gspe-panel-solid:#0a131c;
  --navy-deep:#eef4f8;
}
html,body{background:var(--gspe-page);color:var(--gspe-ink)}
body{font-family:"IBM Plex Mono",monospace}
.app-shell,.edge-shell,.dc-shell{min-height:690px;background:var(--gspe-stage);transition:background .35s ease}

/* One header across all four products. */
.topbar,.edge-header,.dc-header{
  position:absolute;top:20px;left:24px;right:24px;height:76px;z-index:20;
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 22px;
  border:1px solid var(--gspe-line);border-top:4px solid var(--gspe-navy);
  background:var(--gspe-panel);backdrop-filter:blur(20px);box-shadow:0 18px 60px var(--gspe-shadow)
}
.brand,.edge-brand,.dc-brand{display:flex;width:265px;height:50px;align-items:center;overflow:hidden;text-decoration:none}
.brand img,.edge-brand img,.dc-brand img{width:255px;height:auto;display:block}
.brand>span{display:none}
html[data-theme="dark"] .brand img,html[data-theme="dark"] .edge-brand img,html[data-theme="dark"] .dc-brand img{background:#f7fafc}
.product-nav{display:flex;align-items:center;height:100%;gap:20px}
.product-nav a{position:relative;height:100%;display:flex;align-items:center;color:var(--gspe-muted);font-size:7px;font-weight:600;letter-spacing:.1em;text-decoration:none;border-bottom:3px solid transparent}
.product-nav a.active{color:var(--gspe-navy);border-color:var(--gspe-navy)}
.product-nav a.active:after{display:none}
.top-actions,.header-actions,.edge-header-actions{justify-self:end;display:flex;align-items:center;gap:16px}
.theme-toggle{height:32px;display:flex;align-items:center;gap:8px;padding:0 10px;border:1px solid var(--gspe-line);color:var(--gspe-ink);background:transparent;font-size:7px;letter-spacing:.12em;cursor:pointer}
.theme-toggle i{width:13px;height:13px;border:1px solid var(--gspe-navy);border-radius:50%;background:linear-gradient(90deg,var(--gspe-navy) 50%,transparent 50%)}
html[data-theme="dark"] .theme-toggle i{background:var(--gspe-navy);box-shadow:0 0 10px var(--gspe-navy)}
.status,.edge-status,.dc-status{display:grid;grid-template-columns:15px auto;align-items:center;color:var(--gspe-muted);font-size:7px;letter-spacing:.12em}
.status i,.edge-status i,.dc-status i{grid-row:1/3;width:7px;height:7px;border-radius:50%;background:#55c4aa;box-shadow:0 0 0 6px rgba(85,196,170,.12);margin:0}
.status strong,.edge-status strong,.dc-status strong{color:var(--gspe-navy);font-size:8px}

/* Shared hero copy rhythm. */
.hero-copy,.rack-copy,.dc-copy{position:absolute;left:5.8vw;top:20vh;width:440px;pointer-events:none}
.eyebrow,.kicker{margin:0 0 22px;color:var(--gspe-navy);font-size:9px;font-weight:600;letter-spacing:.20em}
.hero-copy h1,.rack-copy h1,.dc-copy h1{margin:0;color:var(--gspe-ink);font-family:"Barlow Condensed",sans-serif;font-size:clamp(68px,6.6vw,108px);line-height:.76;letter-spacing:-.045em;font-weight:700;text-shadow:0 8px 30px var(--gspe-shadow)}
.hero-copy h1 em,.rack-copy h1 em,.dc-copy h1 em{color:transparent;-webkit-text-stroke:1.3px var(--gspe-navy);font-style:italic}
.lede,.intro{width:380px;margin:28px 0;color:var(--gspe-muted);font-family:"Barlow Condensed",sans-serif;font-size:18px;line-height:1.48}
.actions,.copy-actions{display:flex;gap:9px;pointer-events:auto}
.primary,.navy-button{height:46px;padding:0 18px;border:0;background:var(--gspe-navy);color:var(--gspe-button);font-size:9px;font-weight:600;letter-spacing:.1em;box-shadow:none}
.outline-button,.icon-button{height:46px;color:var(--gspe-navy);background:transparent;border:1px solid var(--gspe-line)!important}
.trust-row{margin-top:26px;color:var(--gspe-muted)}
.trust-row b{color:var(--gspe-navy)}

/* Shared technical sheet. */
.spec-panel,.rack-specs,.dc-specs{position:absolute;top:120px;right:24px;width:305px;padding:20px;border:1px solid var(--gspe-line);border-top:3px solid var(--gspe-navy);background:var(--gspe-panel);backdrop-filter:blur(20px);box-shadow:0 22px 70px var(--gspe-shadow)}
.panel-heading,.spec-title{display:flex;justify-content:space-between;padding-bottom:15px;border-bottom:1px solid var(--gspe-line);font-size:9px;letter-spacing:.1em;font-weight:600}
.panel-heading b,.spec-title b{color:var(--gspe-blue);font-size:8px}
.spec-panel dl,.rack-specs dl,.dc-specs dl{margin:7px 0 12px}
.spec-panel dl div,.rack-specs dl div,.dc-specs dl div{display:flex;justify-content:space-between;align-items:baseline;gap:14px;padding:10px 0;border-bottom:1px solid var(--gspe-line)}
.spec-panel dt,.rack-specs dt,.dc-specs dt{color:var(--gspe-muted);font-size:7px;letter-spacing:.09em}
.spec-panel dd,.rack-specs dd,.dc-specs dd{margin:0;text-align:right;color:var(--gspe-ink);font-family:"Barlow Condensed",sans-serif;font-size:15px;font-weight:600}
.concept-note{color:var(--gspe-muted);font-size:6px;line-height:1.5}
.footprint,.capacity-line{color:var(--gspe-navy);font-size:7px}
.footprint i,.capacity-line i{background:var(--gspe-navy)}
.footprint small,.capacity-line small{color:var(--gspe-muted);font-size:6px}

/* Shared control dock. */
.view-dock,.rack-controls,.dc-controls{position:absolute;z-index:25;left:50%;bottom:22px;transform:translateX(-50%);min-height:62px;height:auto;display:flex;align-items:center;gap:7px;padding:8px 10px;white-space:nowrap;border:1px solid var(--gspe-line);background:var(--gspe-panel);backdrop-filter:blur(18px);box-shadow:0 14px 55px var(--gspe-shadow);pointer-events:auto}
.mode-group button,.dock-toggle,.view-buttons button,.control-toggle,.button-group button{height:38px;padding:0 10px;color:var(--gspe-ink);font-size:7px;letter-spacing:.08em}
.mode-group button.active,.view-buttons button.active,.button-group button.active{color:var(--gspe-navy);border-color:var(--gspe-line);background:color-mix(in srgb,var(--gspe-navy) 8%,transparent)}
.divider,.control-rule,.rule{background:var(--gspe-line)}
.debug-select,.rack-controls label,.dc-controls label{color:var(--gspe-muted);font-size:6px}
.debug-select select,.rack-controls select,.dc-controls select{background:var(--gspe-select);color:var(--gspe-ink);font-size:7px}
.metrics,.rack-metrics,.dc-metrics,.interaction-hint,.rack-hint,.dc-hint{color:var(--gspe-muted);font-size:6px;letter-spacing:.11em}

/* Unattended Smart TV / digital-signage tour. */
html.tv-mode{cursor:none}
html.tv-mode .metrics,html.tv-mode .rack-metrics,html.tv-mode .dc-metrics,html.tv-mode .interaction-hint,html.tv-mode .rack-hint,html.tv-mode .dc-hint{display:none}
html.tv-mode .product-nav{gap:28px}html.tv-mode .product-nav a{font-size:11px;letter-spacing:.09em}
html.tv-mode .theme-toggle{height:38px;font-size:10px}html.tv-mode .status,html.tv-mode .edge-status,html.tv-mode .dc-status{font-size:10px}html.tv-mode .status strong,html.tv-mode .edge-status strong,html.tv-mode .dc-status strong{font-size:11px}
html.tv-mode .eyebrow,html.tv-mode .kicker{font-size:13px}html.tv-mode .lede,html.tv-mode .intro{width:470px;font-size:23px;line-height:1.42}
html.tv-mode .actions button,html.tv-mode .copy-actions button{height:54px;font-size:12px}html.tv-mode .trust-row{font-size:10px}
html.tv-mode .spec-panel,html.tv-mode .rack-specs,html.tv-mode .dc-specs{width:355px;padding:24px}html.tv-mode .panel-heading,html.tv-mode .spec-title{font-size:12px}html.tv-mode .panel-heading b,html.tv-mode .spec-title b{font-size:11px}
html.tv-mode .spec-panel dt,html.tv-mode .rack-specs dt,html.tv-mode .dc-specs dt{font-size:10px}html.tv-mode .spec-panel dd,html.tv-mode .rack-specs dd,html.tv-mode .dc-specs dd{font-size:19px}html.tv-mode .concept-note{font-size:9px;line-height:1.55}html.tv-mode .footprint,html.tv-mode .capacity-line{font-size:10px}html.tv-mode .footprint small,html.tv-mode .capacity-line small{font-size:8px}
html.tv-mode .view-dock,html.tv-mode .rack-controls,html.tv-mode .dc-controls{min-height:72px;padding:10px 13px;gap:9px}html.tv-mode .mode-group>span,html.tv-mode .view-buttons small,html.tv-mode .button-group small{font-size:9px}html.tv-mode .mode-group button,html.tv-mode .dock-toggle,html.tv-mode .view-buttons button,html.tv-mode .control-toggle,html.tv-mode .button-group button{height:44px;padding:0 13px;font-size:10px}html.tv-mode .debug-select,html.tv-mode .rack-controls label,html.tv-mode .dc-controls label{font-size:8px}html.tv-mode .debug-select select,html.tv-mode .rack-controls select,html.tv-mode .dc-controls select{font-size:10px}
html.tv-mode .annotation .label,html.tv-mode .rack-annotation .tag,html.tv-mode .dc-annotation .tag{font-size:10px}
.tv-kiosk{position:fixed;z-index:80;right:24px;bottom:22px;width:245px;padding:12px 14px 10px;border:1px solid var(--gspe-line);border-top:3px solid var(--gspe-cyan);color:var(--gspe-ink);background:var(--gspe-panel-solid);box-shadow:0 14px 55px var(--gspe-shadow);font-family:"IBM Plex Mono",monospace;cursor:auto}
.tv-kiosk__title{display:grid;grid-template-columns:8px 1fr auto;align-items:center;gap:7px;color:var(--gspe-muted);font-size:7px;letter-spacing:.12em}.tv-kiosk__title i{width:6px;height:6px;border-radius:50%;background:var(--gspe-cyan);box-shadow:0 0 9px var(--gspe-cyan)}.tv-kiosk__title b{color:var(--gspe-cyan)}
.tv-kiosk>strong{display:block;margin:9px 0 4px;font-family:"Barlow Condensed",sans-serif;font-size:18px;letter-spacing:.03em}.tv-kiosk>small{display:block;color:var(--gspe-muted);font-size:6px;letter-spacing:.08em}
.tv-kiosk__actions{display:flex;gap:6px;margin-top:10px}.tv-kiosk__actions button{height:25px;padding:0 9px;border:1px solid var(--gspe-line);color:var(--gspe-ink);background:transparent;font-size:7px;letter-spacing:.09em;cursor:pointer}.tv-kiosk__actions button:focus{outline:2px solid var(--gspe-cyan);outline-offset:2px}
.tv-kiosk__progress{height:2px;margin-top:10px;overflow:hidden;background:var(--gspe-line)}.tv-kiosk__progress i{display:block;width:100%;height:100%;background:var(--gspe-cyan);transform-origin:left;animation:gspe-tv-progress var(--tv-duration,39000ms) linear forwards}@keyframes gspe-tv-progress{from{transform:scaleX(0)}to{transform:scaleX(1)}}html.tv-paused .tv-kiosk__progress i{animation-play-state:paused}html.tv-paused .tv-kiosk__title i{background:#f0a03c;box-shadow:0 0 9px #f0a03c}

html.tv-mode .tv-kiosk{width:320px;padding:16px 18px 13px}html.tv-mode .tv-kiosk__title{grid-template-columns:10px 1fr auto;font-size:10px}html.tv-mode .tv-kiosk__title i{width:8px;height:8px}html.tv-mode .tv-kiosk>strong{margin:11px 0 5px;font-size:24px}html.tv-mode .tv-kiosk>small{font-size:9px}html.tv-mode .tv-kiosk__actions button{height:34px;padding:0 13px;font-size:10px}html.tv-mode .tv-kiosk__progress{height:3px;margin-top:13px}

@media(max-width:1120px){
  .product-nav{display:none}.topbar,.edge-header,.dc-header{grid-template-columns:1fr auto}
  .spec-panel,.rack-specs,.dc-specs{display:none}.hero-copy,.rack-copy,.dc-copy{left:28px;width:385px}
  .view-dock,.rack-controls,.dc-controls{max-width:calc(100vw - 24px);overflow:auto;justify-content:flex-start}
  .interaction-hint,.rack-hint,.dc-hint{display:none}.metrics,.rack-metrics,.dc-metrics{bottom:96px}
}
@media(max-width:650px){
  .topbar,.edge-header,.dc-header{left:12px;right:12px;padding:0 12px}.brand,.edge-brand,.dc-brand{width:210px}.brand img,.edge-brand img,.dc-brand img{width:205px}
  .status,.edge-status,.dc-status{display:none}.theme-toggle span{display:none}.hero-copy,.rack-copy,.dc-copy{top:140px;left:20px;width:300px}
  .hero-copy h1,.rack-copy h1,.dc-copy h1{font-size:63px}.lede,.intro{width:285px;font-size:16px}.trust-row{display:none}.view-dock,.rack-controls,.dc-controls{bottom:12px}
}

/* Hide-UI mode: clean scene view, toggled by the shared .ui-toggle button (tv-mode.js). */
html.ui-hidden .topbar,html.ui-hidden .hero-copy,html.ui-hidden .spec-panel,html.ui-hidden .view-dock,html.ui-hidden .metrics,html.ui-hidden .interaction-hint,html.ui-hidden #annotations,html.ui-hidden .edge-header,html.ui-hidden .rack-copy,html.ui-hidden .rack-specs,html.ui-hidden .rack-controls,html.ui-hidden .rack-metrics,html.ui-hidden .rack-hint,html.ui-hidden #rackAnnotations,html.ui-hidden .dc-header,html.ui-hidden .dc-copy,html.ui-hidden .dc-specs,html.ui-hidden .dc-controls,html.ui-hidden .dc-metrics,html.ui-hidden .dc-hint,html.ui-hidden #dcAnnotations{display:none}
.ui-toggle{position:fixed;right:18px;bottom:18px;z-index:80;display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;border:1px solid var(--gspe-line);border-radius:2px;background:var(--gspe-panel);color:var(--gspe-navy);font:600 9px/1 "IBM Plex Mono",ui-monospace,monospace;letter-spacing:.14em;cursor:pointer;backdrop-filter:blur(10px);box-shadow:0 10px 24px var(--gspe-shadow);transition:background .2s,color .2s}
.ui-toggle i{width:11px;height:11px;border:1px solid currentColor;border-radius:50%;background:linear-gradient(180deg,currentColor 50%,transparent 50%)}
.ui-toggle:hover{background:var(--gspe-navy);color:#fff}
html.tv-mode .ui-toggle{display:none}
.zoom-dock{position:fixed;right:18px;bottom:60px;z-index:80;display:flex;flex-direction:column;gap:6px}
.zoom-dock button{width:34px;height:34px;border:1px solid var(--gspe-line);border-radius:2px;background:var(--gspe-panel);color:var(--gspe-navy);font:600 15px/1 "IBM Plex Mono",ui-monospace,monospace;cursor:pointer;backdrop-filter:blur(10px);box-shadow:0 10px 24px var(--gspe-shadow);transition:background .2s,color .2s;touch-action:none;user-select:none}
.zoom-dock button:hover{background:var(--gspe-navy);color:#fff}
html.tv-mode .zoom-dock{display:none}