/*
Theme Name: VoltEdge Electronics
Theme URI: https://example.com
Description: Standalone WordPress theme for a B2B electronic components distributor. Category pages double as product landing pages holding 5-8 components, engineered for programmatic SEO and structured data.
Author: VoltEdge
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 7.4
License: GPL-2.0-or-later
Text Domain: voltedge
Tags: custom-menu, custom-logo, featured-images, full-width-template
*/

/* ============================================================
   DESIGN TOKENS
   Palette: technical / instrument panel
     --ve-ink     deep slate ink (text, surfaces)
     --ve-panel   raised panel
     --ve-line    hairline rules
     --ve-trace   signal-trace teal (primary accent)
     --ve-live    live-rail amber (status / data highlight)
   Type:
     display  "Space Grotesk" — engineered grotesque, used with restraint
     body     "Inter" — neutral readable body
     mono     "IBM Plex Mono" — data, specs, part numbers
   ============================================================ */
:root {
    --ve-bg:      #0d1117;
    --ve-ink:     #e6edf3;
    --ve-muted:   #8b98a5;
    --ve-panel:   #161b22;
    --ve-panel-2: #1c2330;
    --ve-line:    #2a3340;
    --ve-trace:   #2dd4bf;
    --ve-trace-d: #14b8a6;
    --ve-live:    #f5a524;
    --ve-danger:  #f87171;
    --ve-white:   #ffffff;

    --ve-radius:  6px;
    --ve-radius-lg: 12px;
    --ve-maxw:    1180px;
    --ve-gap:     clamp(16px, 3vw, 28px);

    --ve-ff-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
    --ve-ff-body:    "Inter", system-ui, -apple-system, sans-serif;
    --ve-ff-mono:    "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--ve-ff-body);
    background: var(--ve-bg);
    color: var(--ve-ink);
    line-height: 1.65;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    /* faint PCB grid */
    background-image:
        linear-gradient(rgba(45,212,191,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(45,212,191,0.025) 1px, transparent 1px);
    background-size: 32px 32px;
}

a { color: var(--ve-trace); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--ve-white); }

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

h1, h2, h3, h4 { font-family: var(--ve-ff-display); line-height: 1.15; font-weight: 600; letter-spacing: -0.01em; color: var(--ve-white); }
h1 { font-size: clamp(1.9rem, 4vw, 3rem); }
h2 { font-size: clamp(1.4rem, 2.6vw, 2rem); margin-bottom: .5em; }
h3 { font-size: 1.2rem; }

p { margin-bottom: 1em; }

.ve-wrap { max-width: var(--ve-maxw); margin: 0 auto; padding: 0 var(--ve-gap); }

/* ── Skip link / a11y ─────────────────────────────────────── */
.ve-skip {
    position: absolute; left: -999px; top: 0; z-index: 999;
    background: var(--ve-trace); color: #04201d; padding: 10px 16px; border-radius: 0 0 6px 0;
    font-family: var(--ve-ff-mono);
}
.ve-skip:focus { left: 0; }
:focus-visible { outline: 2px solid var(--ve-trace); outline-offset: 2px; }

/* ============================================================
   HEADER
   ============================================================ */
.ve-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(13,17,23,0.88);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--ve-line);
}
.ve-header-inner { display: flex; align-items: center; gap: 28px; height: 66px; }
.ve-logo { font-family: var(--ve-ff-display); font-weight: 700; font-size: 1.25rem; color: var(--ve-white); letter-spacing: -0.02em; display: flex; align-items: center; gap: 9px; }
.ve-logo .ve-mark { width: 12px; height: 12px; border-radius: 2px; background: var(--ve-trace); box-shadow: 0 0 12px var(--ve-trace); }
.ve-logo span.alt { color: var(--ve-trace); }
.ve-nav { display: flex; gap: 22px; margin-left: auto; align-items: center; }
.ve-nav a { color: var(--ve-muted); font-size: .94rem; font-weight: 500; }
.ve-nav a:hover { color: var(--ve-ink); }
.ve-nav .ve-cta { background: var(--ve-trace); color: #04201d; padding: 8px 16px; border-radius: var(--ve-radius); font-weight: 600; }
.ve-nav .ve-cta:hover { background: var(--ve-white); color: var(--ve-bg); }
.ve-burger { display: none; background: none; border: 1px solid var(--ve-line); color: var(--ve-ink); width: 40px; height: 40px; border-radius: var(--ve-radius); cursor: pointer; margin-left: auto; }

/* Three-tier dropdown nav */
.ve-nav-item { position: relative; display: inline-flex; align-items: center; }
.ve-nav-top { display: inline-flex; align-items: center; gap: 5px; color: var(--ve-muted); font-size: .94rem; font-weight: 500; cursor: pointer; }
.ve-nav-top:hover { color: var(--ve-ink); }
.ve-caret { font-size: .7rem; transition: transform .15s ease; }
.ve-dd {
    position: absolute; top: calc(100% + 14px); left: 50%; transform: translateX(-50%) translateY(6px);
    min-width: 340px; max-width: 460px; background: var(--ve-panel); border: 1px solid var(--ve-line);
    border-radius: var(--ve-radius-lg, 14px); padding: 18px; box-shadow: 0 18px 50px rgba(0,0,0,.45);
    opacity: 0; visibility: hidden; transition: opacity .16s ease, transform .16s ease; z-index: 60;
}
.ve-nav-item.has-dd:hover .ve-dd,
.ve-nav-item.has-dd:focus-within .ve-dd { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.ve-nav-item.has-dd:hover .ve-caret,
.ve-nav-item.has-dd:focus-within .ve-caret { transform: rotate(180deg); }
.ve-dd-blurb { font-size: .78rem; color: var(--ve-trace); text-transform: uppercase; letter-spacing: .06em; margin: 0 0 12px; font-family: var(--ve-ff-mono, monospace); }
.ve-dd-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 18px; }
.ve-dd-grid a { color: var(--ve-ink); font-size: .9rem; padding: 7px 8px; border-radius: 6px; font-weight: 500; }
.ve-dd-grid a:hover { background: var(--ve-panel-2); color: var(--ve-trace); }
.ve-dd-all { display: inline-block; margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--ve-line); color: var(--ve-trace); font-size: .86rem; font-family: var(--ve-ff-mono, monospace); }

@media (max-width: 880px) {
    .ve-nav { position: fixed; inset: 66px 0 auto 0; flex-direction: column; background: var(--ve-panel); padding: 18px var(--ve-gap); gap: 6px; border-bottom: 1px solid var(--ve-line); display: none; max-height: calc(100vh - 66px); overflow-y: auto; }
    .ve-nav.open { display: flex; }
    .ve-nav > a { width: 100%; padding: 10px 0; }
    .ve-nav-item { display: block; width: 100%; }
    .ve-nav-top { width: 100%; justify-content: space-between; padding: 10px 0; }
    .ve-dd {
        position: static; transform: none; opacity: 1; visibility: visible; min-width: 0; max-width: none;
        box-shadow: none; border: none; border-left: 2px solid var(--ve-line); border-radius: 0;
        padding: 4px 0 8px 14px; margin: 0 0 8px; display: none;
    }
    .ve-nav-item.has-dd.open .ve-dd { display: block; }
    .ve-nav-item.has-dd:hover .ve-dd, .ve-nav-item.has-dd:focus-within .ve-dd { transform: none; }
    .ve-dd-grid { grid-template-columns: 1fr; }
    .ve-burger { display: block; }
}

/* ============================================================
   HERO (home)
   ============================================================ */
.ve-hero { padding: clamp(48px, 8vw, 96px) 0 clamp(36px, 5vw, 60px); position: relative; overflow: hidden; }
.ve-hero .eyebrow { font-family: var(--ve-ff-mono); color: var(--ve-trace); font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 14px; }
.ve-hero h1 { max-width: 16ch; }
.ve-hero .lead { color: var(--ve-muted); font-size: 1.12rem; max-width: 58ch; margin: 20px 0 28px; }
.ve-hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.ve-btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: var(--ve-radius); font-weight: 600; font-family: var(--ve-ff-body); cursor: pointer; border: 1px solid transparent; font-size: .96rem; }
.ve-btn-primary { background: var(--ve-trace); color: #04201d; }
.ve-btn-primary:hover { background: var(--ve-white); color: var(--ve-bg); }
.ve-btn-ghost { background: transparent; border-color: var(--ve-line); color: var(--ve-ink); }
.ve-btn-ghost:hover { border-color: var(--ve-trace); color: var(--ve-trace); }

/* hero stat rail */
.ve-hero-stats { display: flex; gap: 36px; flex-wrap: wrap; margin-top: 44px; padding-top: 28px; border-top: 1px solid var(--ve-line); }
.ve-hero-stats .stat .num { font-family: var(--ve-ff-display); font-size: 1.8rem; color: var(--ve-white); font-weight: 700; }
.ve-hero-stats .stat .lbl { font-family: var(--ve-ff-mono); font-size: .76rem; color: var(--ve-muted); text-transform: uppercase; letter-spacing: .08em; }

/* ============================================================
   CATEGORY GRID
   ============================================================ */
.ve-section { padding: clamp(40px, 6vw, 72px) 0; }
.ve-section-alt { background: var(--ve-panel); border-top: 1px solid var(--ve-line); border-bottom: 1px solid var(--ve-line); }
.ve-section-head { margin-bottom: 32px; }
.ve-section-head .eyebrow { font-family: var(--ve-ff-mono); color: var(--ve-trace); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; }

/* Supply-chain bridge band */
.ve-chain { padding: clamp(36px, 5vw, 64px) 0; border-top: 1px solid var(--ve-line); }
.ve-chain-grid { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: stretch; gap: 16px; }
.ve-chain-step {
    display: flex; flex-direction: column; gap: 10px; background: var(--ve-panel);
    border: 1px solid var(--ve-line); border-radius: var(--ve-radius-lg); padding: 24px;
    text-decoration: none; transition: border-color .18s ease, transform .18s ease;
}
.ve-chain-step:hover { border-color: var(--ve-trace); transform: translateY(-2px); }
.ve-chain-step .step-no { font-family: var(--ve-ff-mono); color: var(--ve-trace); font-size: .82rem; letter-spacing: .08em; }
.ve-chain-step h3 { margin: 2px 0 0; color: var(--ve-white); font-size: 1.2rem; }
.ve-chain-step p { color: var(--ve-muted); font-size: .92rem; line-height: 1.6; margin: 0; flex: 1; }
.ve-chain-step .step-go { font-family: var(--ve-ff-mono); color: var(--ve-trace); font-size: .84rem; margin-top: 6px; }
.ve-chain-step.is-soon { opacity: .72; }
.ve-chain-arrow { display: flex; align-items: center; justify-content: center; color: var(--ve-trace); font-size: 1.6rem; }
.ve-chain-arrow.is-dim { color: var(--ve-line); }
@media (max-width: 880px) {
    .ve-chain-grid { grid-template-columns: 1fr; }
    .ve-chain-arrow { transform: rotate(90deg); padding: 4px 0; }
}
.ve-cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.ve-card {
    background: var(--ve-panel); border: 1px solid var(--ve-line); border-radius: var(--ve-radius-lg);
    padding: 22px; transition: border-color .18s ease, transform .18s ease;
    position: relative; overflow: hidden;
}
.ve-card::before { content: ""; position: absolute; left: 0; top: 0; height: 2px; width: 0; background: var(--ve-trace); transition: width .25s ease; }
.ve-card:hover { border-color: var(--ve-trace); transform: translateY(-2px); }
.ve-card:hover::before { width: 100%; }
.ve-card .idx { font-family: var(--ve-ff-mono); color: var(--ve-trace); font-size: .78rem; letter-spacing: .05em; }
.ve-card h3 { margin: 8px 0 8px; }
.ve-card h3 a { color: var(--ve-white); }
.ve-card p { color: var(--ve-muted); font-size: .92rem; margin-bottom: 14px; }
.ve-card .count { font-family: var(--ve-ff-mono); font-size: .78rem; color: var(--ve-muted); }
.ve-card .count b { color: var(--ve-live); }

/* ============================================================
   PRODUCT / CATEGORY-AS-PRODUCT PAGE
   ============================================================ */
.ve-bc { font-family: var(--ve-ff-mono); font-size: .8rem; color: var(--ve-muted); padding: 18px 0; }
.ve-bc a { color: var(--ve-muted); }
.ve-bc a:hover { color: var(--ve-trace); }
.ve-bc .sep { color: var(--ve-line); margin: 0 6px; }

.ve-prod-head { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; padding-bottom: 36px; border-bottom: 1px solid var(--ve-line); }
@media (max-width: 820px) { .ve-prod-head { grid-template-columns: 1fr; } }
.ve-prod-head .eyebrow { font-family: var(--ve-ff-mono); color: var(--ve-trace); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; }
.ve-prod-head .lead { color: var(--ve-muted); font-size: 1.05rem; margin-top: 16px; }

/* spec panel (instrument readout) */
.ve-spec-panel { background: var(--ve-panel); border: 1px solid var(--ve-line); border-radius: var(--ve-radius-lg); overflow: hidden; }
.ve-spec-panel .head { background: var(--ve-panel-2); padding: 12px 18px; font-family: var(--ve-ff-mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ve-trace); border-bottom: 1px solid var(--ve-line); }
.ve-spec-row { display: flex; justify-content: space-between; gap: 16px; padding: 11px 18px; border-bottom: 1px solid var(--ve-line); font-size: .9rem; }
.ve-spec-row:last-child { border-bottom: none; }
.ve-spec-row .k { color: var(--ve-muted); }
.ve-spec-row .v { font-family: var(--ve-ff-mono); color: var(--ve-ink); text-align: right; }

/* product list inside category */
.ve-prod-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; margin-top: 24px; }
.ve-prod-item { background: var(--ve-panel); border: 1px solid var(--ve-line); border-radius: var(--ve-radius); padding: 16px; transition: border-color .15s ease; }
.ve-prod-item:hover { border-color: var(--ve-trace); }
.ve-prod-item .pn { font-family: var(--ve-ff-mono); font-size: .74rem; color: var(--ve-live); }
.ve-prod-item h4 { font-family: var(--ve-ff-display); font-size: 1.02rem; color: var(--ve-white); margin: 6px 0; }
.ve-prod-item p { font-size: .85rem; color: var(--ve-muted); margin: 0; }
.ve-prod-item img { border-radius: 4px; margin-bottom: 12px; background: var(--ve-panel-2); }

/* body prose */
.ve-prose { max-width: 72ch; }
.ve-prose h2 { margin-top: 1.6em; }
.ve-prose h3 { margin-top: 1.2em; color: var(--ve-trace); }
.ve-prose ul, .ve-prose ol { margin: 0 0 1em 1.3em; }
.ve-prose li { margin-bottom: .4em; color: var(--ve-ink); }
.ve-prose table { width: 100%; border-collapse: collapse; margin: 1.2em 0; font-size: .9rem; }
.ve-prose th, .ve-prose td { border: 1px solid var(--ve-line); padding: 9px 12px; text-align: left; }
.ve-prose th { background: var(--ve-panel-2); font-family: var(--ve-ff-mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ve-trace); }
.ve-prose td { font-family: var(--ve-ff-mono); font-size: .86rem; }
.ve-prose blockquote { border-left: 3px solid var(--ve-trace); padding-left: 16px; color: var(--ve-muted); margin: 1.2em 0; }

/* data anchors strip */
.ve-anchors { background: var(--ve-panel); border: 1px solid var(--ve-line); border-left: 3px solid var(--ve-live); border-radius: var(--ve-radius); padding: 20px 22px; margin: 28px 0; }
.ve-anchors .note { font-size: .82rem; color: var(--ve-muted); font-style: italic; margin-top: 12px; }

/* FAQ */
.ve-faq { margin: 32px 0; }
.ve-faq details { border: 1px solid var(--ve-line); border-radius: var(--ve-radius); margin-bottom: 10px; background: var(--ve-panel); overflow: hidden; }
.ve-faq summary { padding: 16px 18px; cursor: pointer; font-family: var(--ve-ff-display); font-weight: 600; color: var(--ve-white); list-style: none; display: flex; justify-content: space-between; align-items: center; }
.ve-faq summary::-webkit-details-marker { display: none; }
.ve-faq summary::after { content: "+"; font-family: var(--ve-ff-mono); color: var(--ve-trace); font-size: 1.3rem; }
.ve-faq details[open] summary::after { content: "−"; }
.ve-faq .ans { padding: 0 18px 18px; color: var(--ve-muted); }

/* related / internal links */
.ve-related { margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--ve-line); }
.ve-related h2 { font-size: 1.3rem; margin-bottom: 16px; }
.ve-related-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.ve-chip { display: inline-flex; align-items: center; gap: 6px; background: var(--ve-panel); border: 1px solid var(--ve-line); border-radius: 100px; padding: 7px 15px; font-size: .86rem; font-family: var(--ve-ff-mono); color: var(--ve-ink); transition: all .15s ease; }
.ve-chip:hover { border-color: var(--ve-trace); color: var(--ve-trace); }

/* inquiry / RFQ form */
.ve-rfq { background: var(--ve-panel); border: 1px solid var(--ve-line); border-radius: var(--ve-radius-lg); padding: 28px; margin: 40px 0; }
.ve-rfq h2 { font-size: 1.4rem; }
.ve-rfq .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 18px; }
@media (max-width: 640px) { .ve-rfq .grid { grid-template-columns: 1fr; } .ve-prod-head { gap: 24px; } }
.ve-field { display: flex; flex-direction: column; gap: 6px; }
.ve-field.full { grid-column: 1 / -1; }
.ve-field label { font-family: var(--ve-ff-mono); font-size: .76rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ve-muted); }
.ve-field input, .ve-field textarea, .ve-field select {
    background: var(--ve-bg); border: 1px solid var(--ve-line); border-radius: var(--ve-radius);
    padding: 11px 13px; color: var(--ve-ink); font-family: var(--ve-ff-body); font-size: .94rem;
}
.ve-field input:focus, .ve-field textarea:focus, .ve-field select:focus { outline: none; border-color: var(--ve-trace); }
.ve-hp { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }
.ve-form-msg { margin-top: 14px; font-size: .9rem; }
.ve-form-msg.ok { color: var(--ve-trace); }
.ve-form-msg.err { color: var(--ve-danger); }

/* ============================================================
   FOOTER
   ============================================================ */
.ve-footer { border-top: 1px solid var(--ve-line); background: var(--ve-panel); margin-top: 60px; }
.ve-footer-inner { display: grid; grid-template-columns: 1.4fr repeat(auto-fit, minmax(120px, 1fr)); gap: 32px; padding: 48px 0 32px; }
@media (max-width: 760px) { .ve-footer-inner { grid-template-columns: 1fr 1fr; } }
.ve-footer h4 { font-family: var(--ve-ff-mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ve-trace); margin-bottom: 14px; }
.ve-footer ul { list-style: none; }
.ve-footer li { margin-bottom: 8px; }
.ve-footer a { color: var(--ve-muted); font-size: .9rem; }
.ve-footer a:hover { color: var(--ve-ink); }
.ve-footer .desc { color: var(--ve-muted); font-size: .9rem; max-width: 32ch; }
.ve-footer-bottom { border-top: 1px solid var(--ve-line); padding: 18px 0; font-family: var(--ve-ff-mono); font-size: .78rem; color: var(--ve-muted); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* ============================================================
   ARCHIVE / LISTS / PAGINATION / GENERIC
   ============================================================ */
.ve-page-prose { padding: 40px 0 20px; }
.ve-pagination { display: flex; gap: 8px; margin-top: 32px; flex-wrap: wrap; }
.ve-pagination a, .ve-pagination span { font-family: var(--ve-ff-mono); padding: 8px 13px; border: 1px solid var(--ve-line); border-radius: var(--ve-radius); font-size: .86rem; }
.ve-pagination .current { background: var(--ve-trace); color: #04201d; border-color: var(--ve-trace); }

.ve-badge { display: inline-block; font-family: var(--ve-ff-mono); font-size: .72rem; padding: 3px 9px; border-radius: 100px; letter-spacing: .04em; }
.ve-badge.trace { background: rgba(45,212,191,.12); color: var(--ve-trace); border: 1px solid rgba(45,212,191,.3); }
.ve-badge.live { background: rgba(245,165,36,.12); color: var(--ve-live); border: 1px solid rgba(245,165,36,.3); }

/* About / company page */
.ve-about-lead { margin-bottom: 28px; }
.ve-about-facts { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 20px; }
.ve-about-facts .fact { background: var(--ve-panel); border: 1px solid var(--ve-line); border-radius: var(--ve-radius); padding: 12px 16px; min-width: 150px; }
.ve-about-facts .k { display: block; font-family: var(--ve-ff-mono); color: var(--ve-muted); font-size: .74rem; text-transform: uppercase; letter-spacing: .06em; }
.ve-about-facts .v { display: block; color: var(--ve-white); font-weight: 600; margin-top: 4px; }
.ve-about-caps { margin: 0 0 28px; padding: 0; list-style: none; }
.ve-about-caps li { position: relative; padding: 8px 0 8px 26px; border-bottom: 1px solid var(--ve-line); color: var(--ve-ink); }
.ve-about-caps li::before { content: "›"; position: absolute; left: 6px; color: var(--ve-trace); font-weight: 700; }
.ve-about-author { display: flex; gap: 18px; align-items: flex-start; background: var(--ve-panel); border: 1px solid var(--ve-line); border-left: 3px solid var(--ve-trace); border-radius: var(--ve-radius-lg); padding: 22px; margin: 8px 0 28px; }
.ve-about-author .avatar { flex: none; width: 52px; height: 52px; border-radius: 50%; background: var(--ve-panel-2); color: var(--ve-trace); display: flex; align-items: center; justify-content: center; font-family: var(--ve-ff-mono); font-size: 1.4rem; font-weight: 700; }
.ve-about-author h3 { margin: 0; color: var(--ve-white); }
.ve-about-author .role { color: var(--ve-trace); font-family: var(--ve-ff-mono); font-size: .82rem; margin: 2px 0 8px; }
.ve-about-author p { color: var(--ve-muted); margin: 0; line-height: 1.6; }

@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}