/* Deep space: quiet stars, bright content, no decorative background motion. */
:root{--ink:#edf3fa;--navy:#edf3fa;--muted:#b6c4d6;--blue:#9acfff;--line:#33435b;--surface:#101a2b;--scene-background:#050914;--atrium-paper:#050914;color-scheme:dark;background:#050914}
body{background:#050914;color:var(--ink);isolation:isolate}
#space-stars{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;user-select:none}
.section-pages #main{z-index:1}
html.section-pages .section-page[data-page]{background:transparent;isolation:isolate;overflow:clip}
.section-page::before,.section-page::after{display:none}
html.motion-paused .section-page::before,html.motion-paused .section-page::after,html.atrium-still .section-page::before,html.atrium-still .section-page::after{animation-play-state:paused}
html.section-pages .page-source,html.section-pages #home.page-source{background:transparent;color:var(--ink);--muted:#b6c4d6;--line:#33435b;--ink:#edf3fa;--navy:#edf3fa}
.section-pages .page-view-bar{background:#101a2bb8;box-shadow:inset 0 -1px #c6d5e0;backdrop-filter:blur(20px)}
.section-pages .page-view-tab[aria-selected=true]{color:#c0cede;border-bottom-color:#3289be}
.section-pages .navbar,.navbar .nav-links{background:#101a2bed;color:#c0cede;border-bottom-color:#2b3d55}
.navbar{box-shadow:0 3px 24px #314b6806}
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/* Main learning film and controls. */
#home{--chapter-color:#9ecfff}#home[data-journey-stage="1"]{--chapter-color:#9ecfff}#home[data-journey-stage="2"]{--chapter-color:#9ecfff}#home[data-journey-stage="3"]{--chapter-color:#9ecfff}#home[data-journey-stage="4"]{--chapter-color:#9ecfff}#home[data-journey-stage="5"]{--chapter-color:#9ecfff}#home[data-journey-stage="6"]{--chapter-color:#9ecfff}
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#home .brand-shade{background:linear-gradient(90deg,#050914e8, #05091480 30%,transparent 60%)}
#home .brand-copy h1{color:#c0cede}#home .brand-copy h1 em{color:#c0cede}
#home .brand-lead,#home #brand-journey-copy{color:#c0cede}
#home .brand-edition,#home .brand-edition>span:first-child,#home .brand-kicker{color:#c0cede}
#home .brand-kicker>span{background:#478798}
#home .brand-primary{background:#205c7e;border-color:#205c7e;color:#fff;box-shadow:0 8px 22px #225a771a}
#home .brand-primary:hover{background:#174560}
#home .brand-secondary,.learning-savings-link{color:#c0cede;border-color:#2b3d55}.learning-savings-link:hover,#home .brand-secondary:hover{color:#c0cede;border-color:#245c78}
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/* Product, solution, and architecture exhibits share the space canvas. */
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.hero-product,.hero-content h1,.hero-footnote b,.architecture-copy h2,.hf-num{color:#c0cede}
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/* Engineering details and performance keep high contrast against dark panels. */
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@keyframes packet-filter{0%,22%{background:#55a3ad}100%{background:#101a2b}}
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.motion-paused .comparison-playing .comparison-bars i{animation:none!important;transform:scaleX(1)}
.motion-paused .comparison-playing .selected-packets .retained{animation:none!important;background:#101a2b}

/* Contact and both calculators continue the same space palette. */
.footer{color:#c0cede}.footer p,.copyright{color:#c0cede}.footer .eyebrow,.contact-heading>a{color:#c0cede}.contact-details>p strong{color:#c0cede}.contact-details a:hover{color:#c0cede}
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.contact-form input::placeholder,.contact-form textarea::placeholder{color:#c0cede}.submit-btn{background:#235e7b;color:#fff}.submit-btn:hover{background:#174c69}
.map-container{background:#101a2b;border:1px solid #2b3d55}.map-container iframe{filter:none}
.roi-dialog{background:linear-gradient(130deg,#101a2b,#101a2b);color:#c0cede;border-color:#2b3d55;box-shadow:0 30px 100px #173c4e33}
.roi-dialog::backdrop,#sim-root .sim-overlay{background:#28465e52;backdrop-filter:blur(12px)}
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#sim-root .sim-layout .sim-body{background:#101a2b}#sim-root .sim-industry-card,#sim-root .sim-system-card{background:#101a2bc9;border-color:#2b3d55}#sim-root .sim-industry-card.active,#sim-root .sim-system-card.active{background:#101a2b;border-color:#2b3d55}
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@media(max-width:1000px){.navbar .nav-links{background:#101a2bfa;backdrop-filter:blur(24px);box-shadow:0 16px 30px #29475f12}}
@media(max-width:600px){.performance-comparison td:nth-child(3){background:#101a2b!important}.performance-comparison tbody th{color:#c0cede}.performance-comparison td:before{color:#c0cede}}
@media(prefers-reduced-motion:reduce){.section-page::before,.section-page::after{animation:none!important}}
@media print{.section-page::before,.section-page::after{display:none}}

/* A deeper top edge anchors the colored glass surfaces below. */
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.story-overline,.story-step-number,.card-index,.certificate-category,.certificate-description,.certificate-meta,.story-motion-control,.tab-num,.tab-meta,.story-heading p,.story-steps p,.story-outcome p,.technology-evidence p,.technology-evidence small,.card-detail-list,.differentiator{color:#c0cede}
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.section-pages .navbar,.navbar .nav-links{background:#244a5df5;color:#e5eff3;border-bottom-color:#2b3d55}
.navbar .logo-text{background-image:linear-gradient(110deg,#101a2b,#101a2b 48%,#101a2b);color:#e5eff3}
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.navbar .nav-links #nav-try{background:#355e70;color:#e4f0f4;border-color:#2b3d55}
.lang-btn{color:#b8cdd6}.lang-btn.active{color:#eef6f8}.lang-sep{color:#c0cede}
.mobile-toggle span,.mobile-toggle span:before,.mobile-toggle span:after{background:#101a2b}
@media(max-width:1000px){.navbar .nav-links{background:#244a5dfa}}

/* Subtle satin edges; contrast is reserved for text and selected controls. */
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.section-pages .page-view-tab[aria-selected=true]{color:#c0cede;border-bottom-color:#16778c}
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.section-pages .page-pane{scrollbar-color:#778491 transparent}
#home .brand-shade{background:linear-gradient(90deg,#050914e8, #05091480 30%,transparent 60%)}
#home .brand-copy h1{color:#c0cede}#home .brand-copy h1 em{color:#c0cede}
#home .brand-kicker>span{background:linear-gradient(90deg,#21577b,#2e9c9b)}
#home .brand-primary,.button.primary,.hero-section .button.primary{background:linear-gradient(115deg,#164c69,#286f88 48%,#164d6b 86%);border-color:#2b3d55;box-shadow:inset 0 1px #eef3f666,0 5px 16px #22394b2b;color:#fff}
#home .brand-primary:hover,.button.primary:hover,.hero-section .button.primary:hover{background:linear-gradient(115deg,#175778,#327d93 50%,#1e607b)}
.learning-player{background:linear-gradient(105deg,#101a2bed,#101a2bed);box-shadow:inset 0 1px #f7f8f940,inset 0 -1px #53657526}
.learning-player-controls button,.section-pages .solution-detail-tabs button,.industry-steps button,.eng-topic{background:linear-gradient(135deg,#101a2b,#101a2b);border-color:#2b3d5566;box-shadow:inset 0 1px #f3f5f838}
.learning-player-controls button:hover{background:linear-gradient(135deg,#101a2b,#101a2b)}
:is(.solution-card,.value-grid .value-card,.certification-badges .badge,.experience-cta),.section-pages .engineering-page .tech-card,.compare-card{
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 border:1px solid #2b3d55cc;box-shadow:inset 0 1px #fafbfc40,0 6px 18px #2434470d;
}
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.about-brand-visual{background:linear-gradient(123deg,#101a2b,#101a2b 52%,#101a2b);border-color:#2b3d55cc;box-shadow:inset 0 1px #fff4,0 8px 22px #202e4212}
.certification-badges .badge-icon,.value-motion{background:linear-gradient(135deg,#101a2b,#101a2b);border-color:#2b3d55}
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