/**
 * 3D Printing Theme — front-end styles.
 *
 * Aesthetic direction: additive-manufacturing lab — clean, precise, and
 * unmistakably "tech". A near-black ink base on a bright canvas, with an
 * electric-violet primary and a cyan secondary that read like slicer-software
 * highlights and layer-preview colors. A subtle "layer line" motif (thin
 * repeating rules) nods to FDM print layers. A technical monospaced face
 * carries spec labels so the catalog reads as machine-readable datasheets —
 * which doubles as a GEO signal (clear, extractable specs).
 */

/* ----------------------------------------------------------------------
   Design tokens
   ---------------------------------------------------------------------- */
:root {
	--tdp-ink:        #14161c;   /* near-black ink text */
	--tdp-graphite:   #20242e;   /* headings */
	--tdp-steel:      #474e5c;   /* secondary text */
	--tdp-muted:      #757e8e;   /* meta / captions */
	--tdp-line:       #e2e5ec;   /* hairlines */
	--tdp-panel:      #f5f6fa;   /* light panel fill */
	--tdp-panel-2:    #eceef5;   /* alt panel */
	--tdp-white:      #ffffff;

	--tdp-navy:       #1b1d2b;   /* deep header / footer (ink-violet) */
	--tdp-navy-2:     #121320;

	--tdp-accent:     #5b3df5;   /* electric violet — primary signal */
	--tdp-accent-ink: #4329d6;   /* darker hover */
	--tdp-accent-soft:#ece8ff;

	--tdp-cyan:       #06b6d4;   /* layer-preview cyan — secondary accent */
	--tdp-cyan-soft:  #e0f7fb;

	--tdp-blue:       #4f46e5;   /* link color */

	--tdp-radius:     6px;       /* slightly rounded, modern */
	--tdp-shadow:     0 1px 2px rgba(20,22,40,.06), 0 6px 22px rgba(20,22,40,.07);
	--tdp-shadow-lg:  0 12px 48px rgba(28,20,80,.16);

	--tdp-maxw:       1200px;
	--tdp-gap:        clamp(1rem, 2vw, 1.75rem);
	--tdp-header-h:   76px;

	--tdp-sans: "Inter Tight", "Helvetica Neue", Helvetica, Arial, sans-serif;
	--tdp-head: "Sora", "Archivo", "Inter Tight", "Helvetica Neue", Arial, sans-serif;
	--tdp-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

/* ----------------------------------------------------------------------
   Base
   ---------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--tdp-header-h) + 16px); }

body {
	margin: 0;
	font-family: var(--tdp-sans);
	font-size: 17px;
	line-height: 1.65;
	color: var(--tdp-ink);
	background: var(--tdp-white);
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
	font-family: var(--tdp-head);
	color: var(--tdp-graphite);
	line-height: 1.15;
	letter-spacing: -0.01em;
	margin: 0 0 .5em;
	font-weight: 700;
}
h1 { font-size: clamp(2rem, 4vw, 2.9rem); }
h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1.1em; }

a { color: var(--tdp-blue); text-decoration: none; }
a:hover { color: var(--tdp-accent-ink); text-decoration: underline; }

img { max-width: 100%; height: auto; display: block; }

.tdp-container {
	width: 100%;
	max-width: var(--tdp-maxw);
	margin-inline: auto;
	padding-inline: clamp(1rem, 4vw, 2rem);
}

.tdp-content-area { padding-block: clamp(1.75rem, 4vw, 3rem); }

.screen-reader-text {
	position: absolute !important;
	clip: rect(1px,1px,1px,1px); clip-path: inset(50%);
	width: 1px; height: 1px; overflow: hidden;
	padding: 0; margin: -1px; word-wrap: normal !important;
}
.skip-link {
	position: absolute; left: -9999px; top: 0; z-index: 1000;
	background: var(--tdp-accent); color: #fff; padding: .75rem 1.25rem;
	font-weight: 600;
}
.skip-link:focus { left: 8px; top: 8px; }

:focus-visible { outline: 3px solid var(--tdp-accent); outline-offset: 2px; }

/* ----------------------------------------------------------------------
   Buttons
   ---------------------------------------------------------------------- */
.tdp-btn {
	display: inline-flex; align-items: center; justify-content: center;
	gap: .5rem;
	font-family: var(--tdp-head);
	font-weight: 600; font-size: .95rem; letter-spacing: .01em;
	line-height: 1; text-decoration: none !important;
	padding: .8rem 1.4rem;
	border-radius: var(--tdp-radius);
	border: 2px solid transparent;
	cursor: pointer; transition: transform .08s ease, background .15s ease, border-color .15s ease, color .15s ease;
	white-space: nowrap;
}
.tdp-btn:active { transform: translateY(1px); }
.tdp-btn-lg { padding: 1rem 1.7rem; font-size: 1.02rem; }

.tdp-btn-primary { background: var(--tdp-accent); color: #fff; }
.tdp-btn-primary:hover { background: var(--tdp-accent-ink); color: #fff; }

.tdp-btn-secondary { background: var(--tdp-graphite); color: #fff; }
.tdp-btn-secondary:hover { background: var(--tdp-navy); color: #fff; }

.tdp-btn-outline { background: transparent; color: var(--tdp-graphite); border-color: var(--tdp-line); }
.tdp-btn-outline:hover { border-color: var(--tdp-graphite); color: var(--tdp-graphite); }

/* ----------------------------------------------------------------------
   Top bar + Header (sticky)
   ---------------------------------------------------------------------- */
.tdp-topbar {
	background: var(--tdp-navy-2); color: #c3ccd6; font-size: .85rem;
}
.tdp-topbar-inner { display: flex; justify-content: space-between; align-items: center; min-height: 38px; gap: 1rem; }
.tdp-topbar a { color: #c3ccd6; }
.tdp-topbar a:hover { color: #fff; }
.tdp-topbar-contact { display: flex; gap: 1.25rem; }
.tdp-utility-menu { display: flex; gap: 1.25rem; list-style: none; margin: 0; padding: 0; }

.tdp-header {
	position: sticky; top: 0; z-index: 200;
	background: var(--tdp-white);
	border-bottom: 1px solid var(--tdp-line);
	transition: box-shadow .2s ease;
}
.tdp-header.is-stuck { box-shadow: var(--tdp-shadow); }
.tdp-header-inner {
	display: flex; align-items: center; justify-content: space-between;
	gap: 1.5rem; min-height: var(--tdp-header-h);
}
.tdp-branding { display: flex; align-items: center; }
.tdp-branding img, .custom-logo { max-height: 46px; width: auto; }
.tdp-site-title {
	font-family: var(--tdp-head); font-weight: 800; font-size: 1.35rem;
	color: var(--tdp-graphite); letter-spacing: -.02em; text-decoration: none;
}
.tdp-site-title:hover { color: var(--tdp-accent); text-decoration: none; }

/* Primary nav */
.tdp-primary-nav { margin-left: auto; }
.tdp-menu { display: flex; align-items: center; gap: .25rem; list-style: none; margin: 0; padding: 0; }
.tdp-menu > li { position: relative; }
.tdp-menu > li > a {
	display: block; padding: .65rem .85rem; color: var(--tdp-graphite);
	font-family: var(--tdp-head); font-weight: 600; font-size: .96rem;
	text-decoration: none; border-radius: var(--tdp-radius);
}
.tdp-menu > li > a:hover { color: var(--tdp-accent); }
.tdp-menu .tdp-menu-cta a { margin-left: .5rem; }
.tdp-menu .tdp-menu-cta a:hover { color: #fff; }

/* Dropdown / submenu */
.tdp-menu .sub-menu, .tdp-megapanel {
	position: absolute; top: 100%; left: 0; min-width: 240px;
	background: #fff; border: 1px solid var(--tdp-line); border-radius: var(--tdp-radius);
	box-shadow: var(--tdp-shadow-lg); padding: .5rem;
	list-style: none; margin: 0;
	opacity: 0; visibility: hidden; transform: translateY(6px);
	transition: opacity .15s ease, transform .15s ease, visibility .15s;
	z-index: 50;
}
.tdp-menu li:hover > .sub-menu,
.tdp-menu li:focus-within > .sub-menu,
.tdp-menu li:hover > .tdp-megapanel,
.tdp-menu li:focus-within > .tdp-megapanel {
	opacity: 1; visibility: visible; transform: translateY(0);
}
.tdp-menu .sub-menu a { display: block; padding: .55rem .75rem; color: var(--tdp-steel); border-radius: var(--tdp-radius); font-size: .92rem; }
.tdp-menu .sub-menu a:hover { background: var(--tdp-panel); color: var(--tdp-graphite); }
.submenu-toggle { display: none; background: none; border: 0; cursor: pointer; }

/* Mega menu */
.tdp-megapanel { width: min(680px, 90vw); display: grid; grid-template-columns: repeat(3, 1fr); gap: .25rem 1rem; padding: 1rem; }
.tdp-megapanel .mega-col-title { font-family: var(--tdp-head); font-weight: 700; font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--tdp-muted); padding: .4rem .5rem; }
.tdp-megapanel a { display: block; padding: .4rem .5rem; font-size: .92rem; color: var(--tdp-steel); border-radius: var(--tdp-radius); }
.tdp-megapanel a:hover { background: var(--tdp-accent-soft); color: var(--tdp-accent-ink); }

/* Mobile toggle */
.tdp-menu-toggle {
	display: none; width: 46px; height: 46px; border: 1px solid var(--tdp-line);
	background: #fff; border-radius: var(--tdp-radius); cursor: pointer; position: relative;
}
.tdp-menu-toggle-bar, .tdp-menu-toggle-bar::before, .tdp-menu-toggle-bar::after {
	content: ""; position: absolute; left: 50%; transform: translateX(-50%);
	width: 22px; height: 2px; background: var(--tdp-graphite); transition: .2s ease;
}
.tdp-menu-toggle-bar { top: 50%; margin-top: -1px; }
.tdp-menu-toggle-bar::before { top: -7px; }
.tdp-menu-toggle-bar::after  { top: 7px; }
.tdp-menu-toggle[aria-expanded="true"] .tdp-menu-toggle-bar { background: transparent; }
.tdp-menu-toggle[aria-expanded="true"] .tdp-menu-toggle-bar::before { top: 0; transform: translateX(-50%) rotate(45deg); }
.tdp-menu-toggle[aria-expanded="true"] .tdp-menu-toggle-bar::after  { top: 0; transform: translateX(-50%) rotate(-45deg); }

/* ----------------------------------------------------------------------
   Breadcrumbs
   ---------------------------------------------------------------------- */
.tdp-breadcrumbs { margin-bottom: 1.5rem; font-size: .85rem; }
.tdp-breadcrumb-list { display: flex; flex-wrap: wrap; gap: .4rem; list-style: none; margin: 0; padding: 0; color: var(--tdp-muted); }
.tdp-crumb + .tdp-crumb::before { content: "/"; margin-right: .4rem; color: var(--tdp-line); }
.tdp-crumb a { color: var(--tdp-steel); }
.tdp-crumb-current { color: var(--tdp-graphite); font-weight: 600; }

/* ----------------------------------------------------------------------
   Hero
   ---------------------------------------------------------------------- */
.tdp-hero {
	position: relative; color: #fff;
	background: linear-gradient(135deg, var(--tdp-navy) 0%, var(--tdp-navy-2) 100%);
	background-size: cover; background-position: center;
}
.tdp-hero::after {
	content: ""; position: absolute; inset: 0;
	background: linear-gradient(90deg, rgba(20,27,36,.92) 0%, rgba(20,27,36,.6) 60%, rgba(20,27,36,.35) 100%);
}
.tdp-hero-inner { position: relative; z-index: 2; padding-block: clamp(3.5rem, 9vw, 7rem); max-width: 760px; }
.tdp-hero-eyebrow {
	font-family: var(--tdp-mono); text-transform: uppercase; letter-spacing: .18em;
	font-size: .78rem; color: var(--tdp-accent); margin: 0 0 1rem;
	padding-left: 2.5rem; position: relative;
}
.tdp-hero-eyebrow::before { content: ""; position: absolute; left: 0; top: 50%; width: 2rem; height: 2px; background: var(--tdp-accent); }
.tdp-hero-title { color: #fff; font-size: clamp(2.2rem, 5.5vw, 3.8rem); margin-bottom: 1rem; }
.tdp-hero-subtitle { font-size: clamp(1.05rem, 2vw, 1.3rem); color: #cfd8e2; max-width: 60ch; margin-bottom: 2rem; }
.tdp-hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; }

/* ----------------------------------------------------------------------
   Sections (homepage + general)
   ---------------------------------------------------------------------- */
.tdp-section { padding-block: clamp(2.5rem, 6vw, 4.5rem); }
.tdp-section:nth-of-type(even) { background: var(--tdp-panel); }
.tdp-section-title { text-align: center; }
.tdp-section-sub { text-align: center; color: var(--tdp-steel); max-width: 62ch; margin: 0 auto 2.25rem; }
.tdp-section-body { max-width: 70ch; margin-inline: auto; }
.tdp-section-action { text-align: center; margin-top: 2rem; }

/* Card grid */
.tdp-card-grid {
	display: grid; gap: var(--tdp-gap);
	grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
}

/* Category cards */
.tdp-cat-card {
	display: flex; flex-direction: column; background: #fff;
	border: 1px solid var(--tdp-line); border-radius: var(--tdp-radius);
	overflow: hidden; text-decoration: none !important; transition: border-color .15s, transform .12s, box-shadow .15s;
}
.tdp-cat-card:hover { transform: translateY(-2px); border-color: var(--tdp-accent); box-shadow: var(--tdp-shadow); }
.tdp-cat-card-img img { aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.tdp-cat-card-title { font-family: var(--tdp-head); font-weight: 700; color: var(--tdp-graphite); padding: .9rem 1rem .2rem; }
.tdp-cat-card-count { font-family: var(--tdp-mono); font-size: .78rem; color: var(--tdp-muted); padding: 0 1rem 1rem; }

/* Industry grid */
.tdp-industry-grid { display: grid; gap: .75rem; grid-template-columns: repeat(auto-fill, minmax(180px,1fr)); }
.tdp-industry-card {
	display: flex; align-items: center; padding: 1.1rem 1.25rem; background: #fff;
	border: 1px solid var(--tdp-line); border-left: 3px solid var(--tdp-accent);
	border-radius: var(--tdp-radius); font-family: var(--tdp-head); font-weight: 600;
	color: var(--tdp-graphite); text-decoration: none !important; transition: background .15s;
}
.tdp-industry-card:hover { background: var(--tdp-accent-soft); }

/* Media + text */
.tdp-media-text-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center; }
.tdp-media-text-img img { width: 100%; border-radius: var(--tdp-radius); box-shadow: var(--tdp-shadow); }
.tdp-media-text .tdp-section-title { text-align: left; }
.tdp-media-text-reverse .tdp-media-text-img { order: -1; }

/* Certifications */
.tdp-cert-logos { display: flex; flex-wrap: wrap; gap: 2rem; justify-content: center; align-items: center; list-style: none; padding: 0; margin: 2rem 0; }
.tdp-cert-logos img { max-height: 64px; width: auto; filter: grayscale(1); opacity: .7; transition: .2s; }
.tdp-cert-logos img:hover { filter: none; opacity: 1; }

/* Why us */
.tdp-why-grid { display: grid; gap: var(--tdp-gap); grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); }
.tdp-why-item { background: #fff; border: 1px solid var(--tdp-line); border-top: 3px solid var(--tdp-accent); border-radius: var(--tdp-radius); padding: 1.75rem 1.5rem; }
.tdp-why-icon { font-size: 1.75rem; display: block; margin-bottom: .75rem; }
.tdp-why-title { margin-bottom: .4rem; }

/* CTA band */
.tdp-cta-band { background: var(--tdp-navy) !important; color: #fff; }
.tdp-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.tdp-cta-title { color: #fff; margin: 0; }
.tdp-cta-sub { color: #cfd8e2; margin: .5rem 0 0; }
.tdp-cta-actions { display: flex; gap: .9rem; flex-wrap: wrap; }

/* Inline CTA */
.tdp-inline-cta {
	display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap;
	background: var(--tdp-panel); border: 1px solid var(--tdp-line); border-left: 4px solid var(--tdp-accent);
	border-radius: var(--tdp-radius); padding: 1.75rem; margin: 2.5rem 0;
}
.tdp-inline-cta h2 { font-size: 1.3rem; margin: 0 0 .35rem; }
.tdp-inline-cta p { margin: 0; color: var(--tdp-steel); }
.tdp-inline-cta-actions { display: flex; gap: .75rem; flex-wrap: wrap; }

/* ----------------------------------------------------------------------
   Product card
   ---------------------------------------------------------------------- */
.tdp-product-card {
	display: flex; flex-direction: column; background: #fff;
	border: 1px solid var(--tdp-line); border-radius: var(--tdp-radius); overflow: hidden;
	transition: border-color .15s, transform .12s, box-shadow .15s;
}
.tdp-product-card:hover { transform: translateY(-2px); border-color: var(--tdp-accent); box-shadow: var(--tdp-shadow); }
.tdp-product-card-link { display: flex; flex-direction: column; text-decoration: none !important; flex: 1; }
.tdp-product-card-img img { aspect-ratio: 1/1; object-fit: cover; width: 100%; background: var(--tdp-panel); }
.tdp-product-card-body { padding: .9rem 1rem; }
.tdp-product-card-title { display: block; font-family: var(--tdp-head); font-weight: 700; color: var(--tdp-graphite); font-size: 1rem; line-height: 1.3; }
.tdp-product-card-meta { display: block; font-family: var(--tdp-mono); font-size: .76rem; color: var(--tdp-muted); margin-top: .35rem; }
.tdp-product-card-cta { display: block; text-align: center; padding: .7rem; font-family: var(--tdp-head); font-weight: 600; font-size: .85rem; color: var(--tdp-accent-ink); border-top: 1px solid var(--tdp-line); background: var(--tdp-panel); }
.tdp-product-card-cta:hover { background: var(--tdp-accent); color: #fff; text-decoration: none; }

/* ----------------------------------------------------------------------
   Single product
   ---------------------------------------------------------------------- */
.tdp-product-top { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem,4vw,3rem); margin-bottom: 2.5rem; }
.tdp-gallery-main img { width: 100%; border: 1px solid var(--tdp-line); border-radius: var(--tdp-radius); background: var(--tdp-panel); }
.tdp-gallery-thumbs { display: flex; gap: .6rem; flex-wrap: wrap; list-style: none; padding: 0; margin: .75rem 0 0; }
.tdp-gallery-thumbs img { width: 74px; height: 74px; object-fit: cover; border: 1px solid var(--tdp-line); border-radius: var(--tdp-radius); }

.tdp-product-title { margin-bottom: .5rem; }
.tdp-product-model { font-family: var(--tdp-mono); font-size: .9rem; color: var(--tdp-steel); }
.tdp-product-model strong { color: var(--tdp-graphite); }
.tdp-product-blurb { color: var(--tdp-steel); margin: 1rem 0 1.5rem; }

.tdp-product-quickspecs { list-style: none; padding: 0; margin: 0 0 1.75rem; border-top: 1px solid var(--tdp-line); }
.tdp-product-quickspecs li { display: flex; justify-content: space-between; gap: 1rem; padding: .6rem 0; border-bottom: 1px solid var(--tdp-line); }
.tdp-product-quickspecs .qs-label { font-family: var(--tdp-mono); font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; color: var(--tdp-muted); }
.tdp-product-quickspecs .qs-value { font-weight: 600; color: var(--tdp-graphite); text-align: right; }

.tdp-product-actions { display: flex; gap: .8rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.tdp-product-taxlinks { list-style: none; padding: 1rem 0 0; margin: 0; border-top: 1px solid var(--tdp-line); font-size: .88rem; }
.tdp-product-taxlinks li { margin-bottom: .4rem; color: var(--tdp-steel); }
.tdp-product-taxlinks .tl-label { font-family: var(--tdp-mono); text-transform: uppercase; font-size: .74rem; letter-spacing: .05em; color: var(--tdp-muted); margin-right: .35rem; }

.tdp-product-description, .tdp-product-specs, .tdp-product-applications,
.tdp-product-downloads, .tdp-product-faq, .tdp-product-inquiry, .tdp-product-related {
	margin-block: 2.5rem; padding-top: 2rem; border-top: 1px solid var(--tdp-line);
}
.tdp-product-description h2, .tdp-product-specs h2, .tdp-product-applications h2,
.tdp-product-downloads h2, .tdp-product-faq h2, .tdp-product-inquiry h2, .tdp-product-related h2 {
	font-size: 1.4rem; margin-bottom: 1.25rem;
}

/* Spec table */
.tdp-spec-table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.tdp-spec-table th, .tdp-spec-table td { text-align: left; padding: .8rem 1rem; border-bottom: 1px solid var(--tdp-line); }
.tdp-spec-table th { width: 38%; font-family: var(--tdp-mono); font-size: .82rem; text-transform: uppercase; letter-spacing: .03em; color: var(--tdp-muted); font-weight: 600; vertical-align: top; }
.tdp-spec-table tr:nth-child(even) { background: var(--tdp-panel); }
.tdp-spec-table td { font-weight: 600; color: var(--tdp-graphite); }

.tdp-app-links, .tdp-download-list { list-style: none; padding: 0; margin: 0; }
.tdp-app-links { display: flex; flex-wrap: wrap; gap: .5rem; }
.tdp-app-links a { display: inline-block; padding: .45rem .9rem; background: var(--tdp-panel); border: 1px solid var(--tdp-line); border-radius: 100px; font-size: .88rem; color: var(--tdp-steel); }
.tdp-app-links a:hover { background: var(--tdp-accent-soft); color: var(--tdp-accent-ink); text-decoration: none; }

.tdp-download-list li { margin-bottom: .5rem; }
.tdp-download-list a { display: inline-flex; align-items: center; gap: .6rem; padding: .7rem 1rem; background: var(--tdp-panel); border: 1px solid var(--tdp-line); border-radius: var(--tdp-radius); color: var(--tdp-graphite); font-weight: 600; font-size: .92rem; }
.tdp-download-list a:hover { border-color: var(--tdp-accent); text-decoration: none; }
.tdp-dl-icon { color: var(--tdp-accent); font-weight: 700; }

/* ----------------------------------------------------------------------
   FAQ (details/summary)
   ---------------------------------------------------------------------- */
.tdp-faq-list { max-width: 820px; margin-inline: auto; }
.tdp-faq-item { border: 1px solid var(--tdp-line); border-radius: var(--tdp-radius); margin-bottom: .6rem; background: #fff; }
.tdp-faq-q {
	cursor: pointer; padding: 1rem 1.25rem; font-family: var(--tdp-head); font-weight: 600;
	color: var(--tdp-graphite); list-style: none; position: relative; padding-right: 3rem;
}
.tdp-faq-q::-webkit-details-marker { display: none; }
.tdp-faq-q::after { content: "+"; position: absolute; right: 1.25rem; top: 50%; transform: translateY(-50%); font-size: 1.4rem; color: var(--tdp-accent); line-height: 1; }
.tdp-faq-item[open] .tdp-faq-q::after { content: "–"; }
.tdp-faq-a { padding: 0 1.25rem 1.1rem; color: var(--tdp-steel); }
.tdp-faq-a p:last-child { margin-bottom: 0; }

/* ----------------------------------------------------------------------
   Archive layout (products) + facets
   ---------------------------------------------------------------------- */
.tdp-archive-header { margin-bottom: 2rem; }
.tdp-archive-intro { color: var(--tdp-steel); max-width: 75ch; }
.tdp-archive-layout { display: grid; grid-template-columns: 260px 1fr; gap: clamp(1.5rem,3vw,2.5rem); align-items: start; }
.tdp-archive-sidebar { position: sticky; top: calc(var(--tdp-header-h) + 1rem); }
.tdp-facet { margin-bottom: 1.5rem; border: 1px solid var(--tdp-line); border-radius: var(--tdp-radius); overflow: hidden; }
.tdp-facet-title { font-family: var(--tdp-mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: #fff; background: var(--tdp-graphite); margin: 0; padding: .65rem .9rem; }
.tdp-facet-list { list-style: none; margin: 0; padding: .4rem; }
.tdp-facet-list a { display: flex; justify-content: space-between; gap: .5rem; padding: .45rem .6rem; font-size: .9rem; color: var(--tdp-steel); border-radius: var(--tdp-radius); }
.tdp-facet-list a:hover { background: var(--tdp-panel); color: var(--tdp-graphite); text-decoration: none; }
.tdp-facet-count { font-family: var(--tdp-mono); font-size: .76rem; color: var(--tdp-muted); }

/* Subterm chips */
.tdp-subterms { margin-bottom: 1.75rem; }
.tdp-subterm-list { display: flex; flex-wrap: wrap; gap: .5rem; list-style: none; padding: 0; margin: 0; }
.tdp-subterm-list a { display: inline-block; padding: .5rem 1rem; border: 1px solid var(--tdp-line); border-radius: 100px; font-size: .9rem; color: var(--tdp-steel); }
.tdp-subterm-list a:hover { border-color: var(--tdp-accent); color: var(--tdp-accent-ink); text-decoration: none; }
.tdp-subterm-list span { font-family: var(--tdp-mono); font-size: .76rem; color: var(--tdp-muted); }

.tdp-archive-support { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--tdp-line); color: var(--tdp-steel); }

/* Related taxonomies */
.tdp-related-tax { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--tdp-line); }
.tdp-related-tax-title { font-size: 1rem; font-family: var(--tdp-mono); text-transform: uppercase; letter-spacing: .05em; color: var(--tdp-muted); }
.tdp-related-tax-list { list-style: none; padding: 0; margin: 0; columns: 2; }
.tdp-related-tax-list li { margin-bottom: .35rem; }
.tdp-related-tax-list a { font-size: .9rem; color: var(--tdp-steel); }

/* ----------------------------------------------------------------------
   Blog
   ---------------------------------------------------------------------- */
.tdp-blog-grid { display: grid; gap: var(--tdp-gap); grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); }
.tdp-blog-card { background: #fff; border: 1px solid var(--tdp-line); border-radius: var(--tdp-radius); overflow: hidden; display: flex; flex-direction: column; }
.tdp-blog-card-img img { aspect-ratio: 16/9; object-fit: cover; width: 100%; }
.tdp-blog-card-body { padding: 1.1rem 1.25rem; }
.tdp-blog-card-title { font-size: 1.15rem; margin: .3rem 0 .5rem; }
.tdp-blog-card-title a { color: var(--tdp-graphite); }
.tdp-blog-card-title a:hover { color: var(--tdp-accent); text-decoration: none; }
.tdp-meta { font-family: var(--tdp-mono); font-size: .78rem; color: var(--tdp-muted); display: flex; gap: .5rem; flex-wrap: wrap; }
.tdp-readmore { font-family: var(--tdp-head); font-weight: 600; font-size: .9rem; }

.tdp-single-post { max-width: 760px; }
.tdp-article-title { margin-bottom: .5rem; }
.tdp-article-header .tdp-meta { margin-bottom: 1.5rem; }
.tdp-article-featured { margin: 0 0 2rem; }
.tdp-article-featured img { border-radius: var(--tdp-radius); width: 100%; }
.tdp-entry-content { font-size: 1.05rem; }
.tdp-entry-content h2 { margin-top: 2rem; }
.tdp-entry-content img { border-radius: var(--tdp-radius); margin-block: 1.5rem; }
.tdp-entry-content blockquote { border-left: 4px solid var(--tdp-accent); padding-left: 1.25rem; margin-left: 0; color: var(--tdp-steel); font-style: italic; }
.tdp-related-posts { margin-top: 3rem; }

/* ----------------------------------------------------------------------
   Forms
   ---------------------------------------------------------------------- */
.tdp-form-wrap { max-width: 720px; }
.tdp-form .tdp-field { margin-bottom: 1.1rem; }
.tdp-form .tdp-field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.tdp-form label { display: block; font-family: var(--tdp-head); font-weight: 600; font-size: .9rem; color: var(--tdp-graphite); margin-bottom: .4rem; }
.tdp-form .req { color: var(--tdp-accent); }
.tdp-form input[type="text"], .tdp-form input[type="email"], .tdp-form input[type="tel"],
.tdp-form input[type="file"], .tdp-form select, .tdp-form textarea {
	width: 100%; padding: .75rem .9rem; font: inherit; font-size: .98rem;
	border: 1px solid var(--tdp-line); border-radius: var(--tdp-radius); background: #fff;
	color: var(--tdp-ink); transition: border-color .15s, box-shadow .15s;
}
.tdp-form input:focus, .tdp-form select:focus, .tdp-form textarea:focus {
	outline: none; border-color: var(--tdp-accent); box-shadow: 0 0 0 3px var(--tdp-accent-soft);
}
.tdp-form .tdp-math input { max-width: 120px; }
.tdp-form .tdp-submit { margin-top: 1.5rem; }

.tdp-form-message { padding: 1rem 1.25rem; border-radius: var(--tdp-radius); margin-bottom: 1.5rem; font-weight: 600; }
.tdp-form-success { background: #e7f6ec; border: 1px solid #b6e0c4; color: #1d6b3a; }
.tdp-form-error   { background: #fdecea; border: 1px solid #f5c2bd; color: #b3261e; }

.tdp-contact-layout, .tdp-rfq-layout { display: grid; grid-template-columns: 1fr 1.4fr; gap: clamp(1.5rem,4vw,3rem); align-items: start; margin-top: 2rem; }
.tdp-rfq-layout { grid-template-columns: 1.6fr 1fr; }
.tdp-contact-list { list-style: none; padding: 0; margin: 0; }
.tdp-contact-list li { margin-bottom: 1rem; }
.tdp-contact-list .ci-label { display: block; font-family: var(--tdp-mono); font-size: .76rem; text-transform: uppercase; letter-spacing: .05em; color: var(--tdp-muted); }
.tdp-rfq-aside { background: var(--tdp-panel); border: 1px solid var(--tdp-line); border-radius: var(--tdp-radius); padding: 1.75rem; }
.tdp-rfq-steps { padding-left: 1.2rem; color: var(--tdp-steel); }
.tdp-rfq-steps li { margin-bottom: .75rem; }

/* ----------------------------------------------------------------------
   Company facts (about)
   ---------------------------------------------------------------------- */
.tdp-facts-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px,1fr)); gap: 1rem; margin: 2rem 0; }
.tdp-fact { background: var(--tdp-panel); border: 1px solid var(--tdp-line); border-top: 3px solid var(--tdp-accent); border-radius: var(--tdp-radius); padding: 1.25rem; text-align: center; }
.tdp-fact dt { font-family: var(--tdp-mono); font-size: .76rem; text-transform: uppercase; letter-spacing: .06em; color: var(--tdp-muted); }
.tdp-fact dd { margin: .35rem 0 0; font-family: var(--tdp-head); font-weight: 700; font-size: 1.5rem; color: var(--tdp-graphite); }

/* Downloads index */
.tdp-dl-group { margin-bottom: 2rem; }
.tdp-dl-group-title { font-size: 1.1rem; }

/* ----------------------------------------------------------------------
   Pagination
   ---------------------------------------------------------------------- */
.tdp-pagination { margin-top: 2.5rem; }
.page-numbers-list { display: flex; flex-wrap: wrap; gap: .4rem; list-style: none; padding: 0; margin: 0; justify-content: center; }
.page-numbers {
	display: inline-flex; align-items: center; justify-content: center; min-width: 44px; height: 44px;
	padding: 0 .75rem; border: 1px solid var(--tdp-line); border-radius: var(--tdp-radius);
	font-family: var(--tdp-head); font-weight: 600; color: var(--tdp-steel); text-decoration: none;
}
.page-numbers:hover { border-color: var(--tdp-accent); color: var(--tdp-accent-ink); text-decoration: none; }
.page-numbers.current { background: var(--tdp-graphite); color: #fff; border-color: var(--tdp-graphite); }

/* ----------------------------------------------------------------------
   Footer
   ---------------------------------------------------------------------- */
.tdp-footer { background: var(--tdp-navy); color: #aeb9c5; margin-top: 4rem; }
.tdp-footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 2.5rem; padding-block: clamp(2.5rem,5vw,3.5rem); }
.tdp-footer a { color: #cdd6df; }
.tdp-footer a:hover { color: #fff; }
.tdp-footer-title { font-family: var(--tdp-head); font-weight: 800; font-size: 1.25rem; color: #fff; display: block; margin-bottom: 1rem; }
.tdp-footer-heading { font-family: var(--tdp-mono); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: #7d8b99; margin-bottom: 1rem; }
.tdp-footer-list { list-style: none; padding: 0; margin: 0; }
.tdp-footer-list li { margin-bottom: .55rem; }
.tdp-footer-address { font-style: normal; margin: 1rem 0; line-height: 1.7; }
.tdp-footer .custom-logo { filter: brightness(0) invert(1); margin-bottom: 1rem; }
.tdp-social { display: flex; gap: 1rem; list-style: none; padding: 0; margin: 1.25rem 0 0; }
.tdp-footer-bottom { border-top: 1px solid rgba(255,255,255,.08); font-size: .85rem; }
.tdp-footer-bottom p { margin: 0; padding-block: 1.25rem; color: #7d8b99; }

/* ----------------------------------------------------------------------
   404 / search
   ---------------------------------------------------------------------- */
.tdp-404-links { display: flex; flex-wrap: wrap; gap: .6rem; list-style: none; padding: 0; margin: 1rem 0 2rem; }
.tdp-404-links a { padding: .5rem 1rem; background: var(--tdp-panel); border: 1px solid var(--tdp-line); border-radius: 100px; font-size: .9rem; }
.tdp-search-result { padding: 1.25rem 0; border-bottom: 1px solid var(--tdp-line); }
.tdp-search-type { font-family: var(--tdp-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; color: #fff; background: var(--tdp-muted); padding: .15rem .5rem; border-radius: 100px; margin-left: .5rem; vertical-align: middle; }
.tdp-search-form { display: flex; gap: .5rem; max-width: 520px; }
.tdp-search-field { flex: 1; padding: .75rem .9rem; border: 1px solid var(--tdp-line); border-radius: var(--tdp-radius); font: inherit; }
.tdp-search-submit { padding: .75rem 1.25rem; background: var(--tdp-graphite); color: #fff; border: 0; border-radius: var(--tdp-radius); font-family: var(--tdp-head); font-weight: 600; cursor: pointer; }
.tdp-search-submit:hover { background: var(--tdp-accent); }

/* ----------------------------------------------------------------------
   Responsive
   ---------------------------------------------------------------------- */
@media (max-width: 980px) {
	.tdp-archive-layout { grid-template-columns: 1fr; }
	.tdp-archive-sidebar { position: static; }
	.tdp-facet-list { columns: 2; }
	.tdp-product-top { grid-template-columns: 1fr; }
	.tdp-media-text-grid { grid-template-columns: 1fr; }
	.tdp-media-text-reverse .tdp-media-text-img { order: 0; }
	.tdp-contact-layout, .tdp-rfq-layout { grid-template-columns: 1fr; }
	.tdp-footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
	.tdp-menu-toggle { display: block; }
	.tdp-primary-nav {
		position: fixed; inset: var(--tdp-header-h) 0 0 auto; width: min(86vw, 340px);
		background: #fff; border-left: 1px solid var(--tdp-line); box-shadow: var(--tdp-shadow-lg);
		transform: translateX(100%); transition: transform .25s ease; overflow-y: auto; padding: 1rem;
	}
	body.tdp-nav-open .tdp-primary-nav { transform: translateX(0); }
	body.tdp-nav-open { overflow: hidden; }
	.tdp-menu { flex-direction: column; align-items: stretch; gap: 0; }
	.tdp-menu > li > a { padding: .9rem .5rem; border-bottom: 1px solid var(--tdp-line); }
	.tdp-menu .sub-menu, .tdp-menu .tdp-megapanel {
		position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none;
		border: 0; border-left: 2px solid var(--tdp-line); border-radius: 0; padding-left: 1rem;
		display: none; width: auto;
	}
	.tdp-menu li.is-open > .sub-menu, .tdp-menu li.is-open > .tdp-megapanel { display: block; }
	.tdp-megapanel { grid-template-columns: 1fr; }
	.submenu-toggle { display: inline-flex; position: absolute; right: .25rem; top: .35rem; width: 44px; height: 44px; align-items: center; justify-content: center; font-size: 1.2rem; }
	.tdp-menu-cta a { margin: .75rem 0 0 !important; width: 100%; }
}

@media (max-width: 560px) {
	.tdp-form .tdp-field-row { grid-template-columns: 1fr; }
	.tdp-footer-grid { grid-template-columns: 1fr; }
	.tdp-cta-inner { flex-direction: column; align-items: flex-start; }
}

/* ----------------------------------------------------------------------
   3D-printing signature touches (layer-line motif + gradient accents)
   ---------------------------------------------------------------------- */

/* Hero: violet→cyan wash + faint horizontal "layer lines" for an FDM feel */
.tdp-hero {
	background: linear-gradient(135deg, #221a4d 0%, var(--tdp-navy-2) 60%, #0c2230 100%);
}
.tdp-hero::before {
	content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
	background-image: repeating-linear-gradient(
		0deg, rgba(255,255,255,.04) 0, rgba(255,255,255,.04) 1px, transparent 1px, transparent 7px
	);
	mask-image: linear-gradient(90deg, transparent, #000 40%);
}
.tdp-hero-eyebrow { color: var(--tdp-cyan); }
.tdp-hero-eyebrow::before { background: linear-gradient(90deg, var(--tdp-accent), var(--tdp-cyan)); }

/* Centered section titles get a short gradient "extrusion" underline */
.tdp-section-title { position: relative; padding-bottom: .6rem; }
.tdp-section-title::after {
	content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
	width: 56px; height: 3px; border-radius: 3px;
	background: linear-gradient(90deg, var(--tdp-accent), var(--tdp-cyan));
}
.tdp-media-text .tdp-section-title::after,
.tdp-archive-header .tdp-page-title::after { left: 0; transform: none; }

/* Primary button: subtle violet→indigo depth */
.tdp-btn-primary {
	background: linear-gradient(180deg, #6a4dff 0%, var(--tdp-accent) 100%);
	box-shadow: 0 1px 0 rgba(255,255,255,.18) inset, 0 6px 16px rgba(91,61,245,.28);
}
.tdp-btn-primary:hover { background: var(--tdp-accent-ink); }

/* Cyan as the "inquire / data" secondary signal on cards */
.tdp-product-card-cta { color: var(--tdp-accent-ink); }
.tdp-product-card-cta:hover { background: linear-gradient(90deg, var(--tdp-accent), var(--tdp-cyan)); color:#fff; }

/* Industry/why accents shift to the gradient family */
.tdp-industry-card { border-left-color: var(--tdp-cyan); }
.tdp-why-item { border-top-color: var(--tdp-accent); }
.tdp-fact { border-top-color: var(--tdp-cyan); }

/* ----------------------------------------------------------------------
   GEO / content components: Key Facts, glossary, guides, comparison
   ---------------------------------------------------------------------- */

/* Eyebrow + badge */
.tdp-eyebrow { font-family: var(--tdp-mono); text-transform: uppercase; letter-spacing: .12em; font-size: .76rem; color: var(--tdp-accent); margin: 0 0 .5rem; }
.tdp-badge { display: inline-block; font-family: var(--tdp-mono); font-size: .68rem; text-transform: uppercase; letter-spacing: .06em; color: #fff; background: var(--tdp-cyan); padding: .2rem .5rem; border-radius: 100px; margin-bottom: .5rem; }

/* Key Facts — boxed, scannable, machine-readable */
.tdp-key-facts {
	margin: 2rem 0; padding: 1.5rem 1.75rem;
	background: linear-gradient(180deg, var(--tdp-accent-soft), #fff 70%);
	border: 1px solid var(--tdp-line); border-left: 4px solid var(--tdp-accent);
	border-radius: var(--tdp-radius);
}
.tdp-key-facts-title { font-size: 1.05rem; font-family: var(--tdp-mono); text-transform: uppercase; letter-spacing: .06em; color: var(--tdp-graphite); margin: 0 0 1rem; }
.tdp-key-facts-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: .25rem 1.5rem; margin: 0; }
.tdp-key-fact { display: flex; justify-content: space-between; gap: 1rem; padding: .5rem 0; border-bottom: 1px dashed var(--tdp-line); }
.tdp-key-fact dt { font-family: var(--tdp-mono); font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--tdp-muted); margin: 0; }
.tdp-key-fact dd { margin: 0; font-weight: 600; color: var(--tdp-graphite); text-align: right; }

/* Glossary */
.tdp-glossary-nav { display: flex; flex-wrap: wrap; gap: .4rem; margin: 1.5rem 0 2.5rem; }
.tdp-glossary-nav a { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border: 1px solid var(--tdp-line); border-radius: var(--tdp-radius); font-family: var(--tdp-head); font-weight: 700; color: var(--tdp-steel); }
.tdp-glossary-nav a:hover { border-color: var(--tdp-accent); color: var(--tdp-accent-ink); text-decoration: none; }
.tdp-glossary-group { margin-bottom: 2.5rem; scroll-margin-top: calc(var(--tdp-header-h) + 1rem); }
.tdp-glossary-letter { font-size: 2rem; color: var(--tdp-accent); border-bottom: 2px solid var(--tdp-line); padding-bottom: .25rem; }
.tdp-glossary-entry { padding: 1rem 0; border-bottom: 1px solid var(--tdp-line); scroll-margin-top: calc(var(--tdp-header-h) + 1rem); }
.tdp-glossary-term { font-size: 1.15rem; margin: 0 0 .35rem; }
.tdp-glossary-def { color: var(--tdp-steel); }
.tdp-glossary-def p:last-child { margin-bottom: 0; }
.tdp-single-glossary { max-width: 760px; }

/* Guides / HowTo */
.tdp-single-guide { max-width: 820px; }
.tdp-howto { margin-top: 2.5rem; padding-top: 2rem; border-top: 1px solid var(--tdp-line); }
.tdp-howto-steps { list-style: none; counter-reset: step; padding: 0; margin: 0; }
.tdp-howto-step { position: relative; padding: 0 0 1.25rem 3.25rem; counter-increment: step; }
.tdp-howto-step::before {
	content: counter(step); position: absolute; left: 0; top: 0;
	width: 2.25rem; height: 2.25rem; display: flex; align-items: center; justify-content: center;
	background: linear-gradient(180deg, #6a4dff, var(--tdp-accent)); color: #fff;
	font-family: var(--tdp-head); font-weight: 700; border-radius: 50%;
}
.tdp-howto-step-title { margin: .15rem 0 .35rem; font-size: 1.1rem; }

/* Comparison table */
.tdp-compare { margin-top: 2.5rem; padding-top: 2rem; border-top: 1px solid var(--tdp-line); }
.tdp-compare-scroll { overflow-x: auto; }
.tdp-compare-table { width: 100%; border-collapse: collapse; font-size: .92rem; min-width: 560px; }
.tdp-compare-table th, .tdp-compare-table td { padding: .7rem .85rem; border: 1px solid var(--tdp-line); text-align: left; vertical-align: top; }
.tdp-compare-table thead th { background: var(--tdp-graphite); color: #fff; position: sticky; top: 0; }
.tdp-compare-table thead th a { color: #fff; }
.tdp-compare-table tbody th { font-family: var(--tdp-mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; color: var(--tdp-muted); background: var(--tdp-panel); }
.tdp-compare-table tbody tr:nth-child(even) td { background: var(--tdp-panel); }