/* ═══════════════════════════════════════════════════════════
   ESOTECH — INTERACTIVE / ANIMATED LAYER
   Loaded after design-system.css + main.css. Adds the digital-
   tech innovation feel: particle field, scanlines, animated
   dividers, marquee ticker, glow-cursor, live metrics,
   3D tilts, magnetic buttons, and a real-time monitor.
═══════════════════════════════════════════════════════════ */

/* ── NAV FIX: keep links on one line, breakpoint up ── */
.nav-links a { white-space: nowrap; }
@media (max-width: 1100px) {
    .nav-links { gap: 1.6rem; }
    .nav-links a { font-size: .68rem; letter-spacing: .18em; }
}
@media (max-width: 980px) {
    .nav-links, .nav-cta { display: none; }
    .mobile-nav-toggle { display: flex; }
}

/* ── COLLAPSIBLE TOGGLE (advanced sections) ─── */
.sys-toggle {
    display: block;
    width: 100%;
    border: 0;
    background: transparent;
    cursor: pointer;
    text-align: left;
    color: var(--text-2);
    padding: 1.4rem 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    font: inherit;
    position: relative;
    z-index: 1;
    transition: background-color .25s ease, border-color .25s ease;
    overflow: hidden;
}
.sys-toggle::before {
    /* faint cyan glow strip on top, matches sys-divider gradient */
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent, rgba(106,191,214,.04), transparent);
    pointer-events: none;
}
.sys-toggle:hover {
    background: rgba(106,191,214,.04);
    border-top-color: var(--border-blue);
    border-bottom-color: var(--border-blue);
}
.sys-toggle .wrap {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-family: var(--font-mono);
    font-size: .72rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--text-2);
}
.sys-toggle .tag { color: var(--blue-accent); }
.sys-toggle .bar {
    flex: 1;
    height: 1px;
    background:
        linear-gradient(90deg,
          var(--border) 0%, var(--border) 20%,
          var(--blue-accent) 20%, var(--blue-accent) 25%,
          var(--border) 25%, var(--border) 100%);
    position: relative;
    overflow: hidden;
}
.sys-toggle .bar::after {
    content: '';
    position: absolute; top: -1px;
    left: -20%; width: 20%; height: 3px;
    background: var(--blue-accent);
    box-shadow: 0 0 8px var(--blue-accent);
    animation: barRun 4s linear infinite;
}
.sys-toggle .hint {
    color: var(--text-2);
    font-weight: 400;
    letter-spacing: .15em;
    text-transform: none;
}
.sys-toggle .state {
    color: var(--text-2);
    font-size: .65rem;
    letter-spacing: .25em;
    min-width: 130px;
    text-align: right;
}
.sys-toggle .state-open { display: none; color: var(--blue-accent); }
.sys-toggle[aria-expanded="true"] .state-closed { display: none; }
.sys-toggle[aria-expanded="true"] .state-open { display: inline; }

.sys-toggle .chev {
    display: inline-flex; align-items: center; justify-content: center;
    width: 28px; height: 28px;
    border: 1px solid var(--blue-accent);
    color: var(--blue-accent);
    position: relative;
    transition: background-color .25s ease, transform .35s ease;
    flex-shrink: 0;
}
.sys-toggle:hover .chev { background: rgba(106,191,214,.12); }
.sys-toggle .plus,
.sys-toggle .plus::after {
    content: '';
    position: absolute;
    background: var(--blue-accent);
}
.sys-toggle .plus      { width: 12px; height: 1.5px; }
.sys-toggle .plus::after {
    width: 1.5px; height: 12px;
    left: 5.25px; top: -5.25px;
    transition: transform .3s ease, opacity .3s ease;
}
.sys-toggle[aria-expanded="true"] .chev { transform: rotate(180deg); background: var(--blue-accent); }
.sys-toggle[aria-expanded="true"] .plus { background: #050505; }
.sys-toggle[aria-expanded="true"] .plus::after { background: #050505; transform: scaleY(0); }

/* Collapsible wrapper */
.collapsible {
    overflow: hidden;
    height: 0;
    opacity: 0;
    transform: translateY(-12px);
    transition:
        height .7s cubic-bezier(.4,.0,.2,1),
        opacity .35s ease,
        transform .5s ease;
    will-change: height;
    position: relative;
    z-index: 1;
}
.collapsible.open {
    opacity: 1;
    transform: translateY(0);
}
/* When opening, briefly tag with .opening so contents fade in nicely */
.collapsible.open > section {
    animation: collapseFadeIn .7s .1s both ease;
}
@keyframes collapseFadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: none; }
}

/* ── HERO ABOVE-FOLD: don't rely on IO, use keyframes ── */
.hero .reveal,
.hero .reveal-left,
.hero .reveal-right {
    opacity: 1 !important;
    transform: none !important;
    animation: heroFadeUp .9s .15s both cubic-bezier(.2,.7,.2,1);
}
.hero .reveal-right { animation-delay: .35s; animation-name: heroFadeRight; }
.hero .reveal-left  { animation-delay: .15s; animation-name: heroFadeLeft;  }
@keyframes heroFadeUp {
    from { opacity: 0; transform: translateY(28px); }
    to   { opacity: 1; transform: none; }
}
@keyframes heroFadeLeft {
    from { opacity: 0; transform: translateX(-28px); }
    to   { opacity: 1; transform: none; }
}
@keyframes heroFadeRight {
    from { opacity: 0; transform: translateX(28px); }
    to   { opacity: 1; transform: none; }
}

/* All other reveals: use a real keyframe animation on .visible
   so they fade in reliably even when the iframe throttles
   transitions during scroll. */
.reveal.visible       { animation: heroFadeUp    .7s both cubic-bezier(.2,.7,.2,1); }
.reveal-left.visible  { animation: heroFadeLeft  .7s both cubic-bezier(.2,.7,.2,1); }
.reveal-right.visible { animation: heroFadeRight .7s both cubic-bezier(.2,.7,.2,1); }

/* ── SCROLL PROGRESS RAIL ──────────────────── */
.scroll-progress {
    position: fixed;
    top: 0; left: 0;
    height: 2px;
    width: 0%;
    background: var(--blue-accent);
    z-index: 2000;
    box-shadow: 0 0 12px var(--blue-accent);
    transition: width .1s linear;
}

/* ── CURSOR GLOW (desktop) ─────────────────── */
.cursor-glow {
    position: fixed;
    top: 0; left: 0;
    width: 420px; height: 420px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 5;
    background:
        radial-gradient(circle at 35% 35%, rgba(106,191,214,.12) 0%, transparent 55%),
        radial-gradient(circle at 65% 65%, rgba(195,0,255,.10)  0%, transparent 55%);
    transform: translate(-50%, -50%);
    mix-blend-mode: screen;
    opacity: 0;
    transition: opacity .4s ease;
}
.cursor-glow.live { opacity: 1; }
@media (hover: none), (max-width: 900px) { .cursor-glow { display: none; } }

/* ── HERO PARTICLE CANVAS ──────────────────── */
.hero-canvas {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: .85;
}
.hero { z-index: 1; }
.hero .wrap { z-index: 3; }

/* Page hero (inner pages) — same particle canvas treatment + corners */
.page-hero {
    position: relative;
    overflow: hidden;
    z-index: 1;
}
.page-hero .wrap { position: relative; z-index: 3; }
.page-hero .hero-canvas { opacity: .55; }
.page-hero::before, .page-hero::after {
    content: '';
    position: absolute;
    z-index: 2;
    pointer-events: none;
    background: var(--blue-accent);
    opacity: .25;
    top: 3rem; bottom: 1rem;
    width: 1px;
}
.page-hero::before { left: 9vw; }
.page-hero::after  { right: 9vw; }
@media (max-width: 900px) {
    .page-hero::before, .page-hero::after { display: none; }
}
.page-hero-corners {
    position: absolute;
    z-index: 3;
    inset: 3rem 9vw 1rem 9vw;
    pointer-events: none;
}
.page-hero-corners span {
    position: absolute;
    width: 14px; height: 14px;
    border: 1px solid var(--blue-accent);
}
.page-hero-corners .tl { top: 0; left: 0;  border-right: 0; border-bottom: 0; }
.page-hero-corners .tr { top: 0; right: 0; border-left: 0;  border-bottom: 0; }
.page-hero-corners .bl { bottom: 0; left: 0;  border-right: 0; border-top: 0; }
.page-hero-corners .br { bottom: 0; right: 0; border-left: 0;  border-top: 0; }
@media (max-width: 900px) { .page-hero-corners { display: none; } }

/* Lift hero background fade brightness slightly so canvas reads */
.hero-bg img { opacity: .22; }

/* ── ANIMATED HERO EYEBROW ─────────────────── */
.hero-eyebrow .live-dot {
    display: inline-block;
    width: 8px; height: 8px;
    background: #4ade80;
    margin-right: .5rem;
    animation: pulseDot 1.6s ease-in-out infinite;
    box-shadow: 0 0 8px #4ade80;
}
@keyframes pulseDot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%      { opacity: .35; transform: scale(.7); }
}
.hero-eyebrow .build {
    color: var(--text-2);
    margin-left: .9rem;
    letter-spacing: .25em;
}

/* Typed accent line — caret */
.hero-title-accent {
    position: relative;
    display: inline-block;
    color: var(--accent-cyan);
}
.hero-title-accent::after {
    content: '';
    display: inline-block;
    width: .55ch; height: .9em;
    background: var(--accent-cyan);
    margin-left: .1em;
    vertical-align: -.05em;
    animation: caret 1s steps(1) infinite;
}
@keyframes caret { 50% { opacity: 0; } }

/* ── HERO STATS — counter animation ────────── */
.stat-chip strong { font-variant-numeric: tabular-nums; }
.stat-chip {
    position: relative; overflow: hidden;
}
.stat-chip::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 2px;
    background: var(--blue-accent);
    transition: left .8s cubic-bezier(.6,.02,.4,1);
}
.stat-chip.lit::before { left: 0; }

/* ── HERO CARD ENHANCEMENTS ─────────────────── */
.hero-card {
    overflow: hidden;
    transition: border-color .3s ease, transform .3s ease;
}
.hero-card::before {
    /* corner pixel cluster */
    content: '';
    position: absolute;
    top: -1px; right: -1px;
    width: 18px; height: 18px;
    background:
        linear-gradient(135deg, transparent 50%, var(--blue-accent) 50%);
    opacity: .9;
}
.hero-card::after {
    /* corner pixel cluster bottom-left */
    content: '';
    position: absolute;
    bottom: -1px; left: -1px;
    width: 18px; height: 18px;
    background:
        linear-gradient(-45deg, transparent 50%, var(--blue-accent) 50%);
    opacity: .9;
}

/* Scanline over the dashboard image */
.screenshot-wrap { position: relative; }
.screenshot-wrap::after {
    content: '';
    position: absolute;
    left: 0; right: 0; top: 0;
    height: 80px;
    pointer-events: none;
    background: linear-gradient(180deg,
        rgba(106,191,214,0) 0%,
        rgba(106,191,214,.18) 50%,
        rgba(106,191,214,0) 100%);
    animation: scan 4.2s linear infinite;
    z-index: 5;
    mix-blend-mode: screen;
}
@keyframes scan {
    0%   { transform: translateY(-80px); }
    100% { transform: translateY(100%);   }
}

/* Tracker dots overlay on hero card */
.hero-card-bottom .pulse-dot {
    display: inline-block;
    width: 6px; height: 6px;
    background: var(--blue-accent);
    margin-right: .5rem;
    animation: pulseDot 1.6s ease-in-out infinite;
    vertical-align: middle;
}

/* ── FLOATING HUD CHIPS around hero card ────── */
.hero-hud {
    position: absolute;
    font-family: var(--font-mono);
    font-size: .68rem;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--blue-accent);
    background: rgba(5,5,5,.85);
    border: 1px solid var(--border-strong);
    padding: .55rem .8rem;
    backdrop-filter: blur(6px);
    z-index: 4;
    pointer-events: none;
    opacity: 0;
    transform: translateY(8px);
    animation: hudIn .6s .8s ease forwards;
}
.hero-hud .v {
    color: var(--text-0);
    font-weight: 700;
    margin-left: .5rem;
    font-variant-numeric: tabular-nums;
}
.hero-hud .corner {
    position: absolute;
    width: 6px; height: 6px;
    border: 1px solid var(--blue-accent);
}
.hero-hud .corner.tl { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.hero-hud .corner.tr { top: -1px; right: -1px; border-left: 0; border-bottom: 0; }
.hero-hud .corner.bl { bottom: -1px; left: -1px; border-right: 0; border-top: 0; }
.hero-hud .corner.br { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }
.hero-hud-1 { top: -18px; left: -22px; animation-delay: .8s; }
.hero-hud-2 { bottom: 22%; right: -38px; animation-delay: 1s; color: var(--accent-purple); }
.hero-hud-2 .corner { border-color: var(--accent-purple); }
.hero-hud-3 { bottom: -18px; left: 12%; animation-delay: 1.2s; }
@keyframes hudIn {
    to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 1200px) { .hero-hud { display: none; } }

/* ── ANIMATED SECTION DIVIDER ─────────────── */
.sys-divider {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: linear-gradient(180deg, transparent, rgba(106,191,214,.03), transparent);
    padding: 1.1rem 0;
    overflow: hidden;
}
.sys-divider .wrap {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-family: var(--font-mono);
    font-size: .7rem;
    color: var(--text-2);
    letter-spacing: .2em;
    text-transform: uppercase;
}
.sys-divider .tag { color: var(--blue-accent); }
.sys-divider .bar {
    flex: 1;
    height: 1px;
    background:
        linear-gradient(90deg,
          var(--border) 0%, var(--border) 20%,
          var(--blue-accent) 20%, var(--blue-accent) 25%,
          var(--border) 25%, var(--border) 100%);
    position: relative;
    overflow: hidden;
}
.sys-divider .bar::after {
    content: '';
    position: absolute; top: -1px;
    left: -20%; width: 20%; height: 3px;
    background: var(--blue-accent);
    box-shadow: 0 0 8px var(--blue-accent);
    animation: barRun 4s linear infinite;
}
@keyframes barRun {
    to { left: 110%; }
}
.sys-divider .ts {
    font-variant-numeric: tabular-nums;
    color: var(--text-2);
}

/* ── TICKER MARQUEE ────────────────────────── */
.ticker {
    position: relative; z-index: 1;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: #030303;
    overflow: hidden;
    padding: .9rem 0;
    font-family: var(--font-mono);
    font-size: .8rem;
    letter-spacing: .25em;
    text-transform: uppercase;
}
.ticker-track {
    display: flex; gap: 4rem;
    animation: tickerScroll 60s linear infinite;
    width: max-content;
}
.ticker-track span {
    display: inline-flex; align-items: center; gap: 1rem;
    color: var(--text-1);
    white-space: nowrap;
}
.ticker-track span::before {
    content: '◆';
    color: var(--blue-accent);
    font-size: .6rem;
}
.ticker:hover .ticker-track { animation-play-state: paused; }
@keyframes tickerScroll {
    to { transform: translateX(-50%); }
}

/* ── PRODUCT CARDS — interactive ─────────── */
.product-card {
    overflow: hidden;
    transform-style: preserve-3d;
    transition: transform .25s ease, border-color .25s ease, background-color .25s ease;
    will-change: transform;
}
.product-card .card-glow {
    position: absolute;
    pointer-events: none;
    width: 240px; height: 240px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(106,191,214,.18), transparent 65%);
    top: 0; left: 0;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity .25s ease;
    mix-blend-mode: screen;
}
.product-card:hover .card-glow { opacity: 1; }

.product-card .card-meter {
    margin-top: 1rem;
    display: flex; align-items: center; gap: .8rem;
    font-family: var(--font-mono);
    font-size: .65rem;
    letter-spacing: .2em;
    color: var(--text-2);
    text-transform: uppercase;
}
.product-card .card-meter .bar {
    flex: 1; height: 4px;
    background: var(--border);
    position: relative;
    overflow: hidden;
}
.product-card .card-meter .bar i {
    position: absolute; left: 0; top: 0; bottom: 0;
    width: 60%;
    background: var(--blue-accent);
    box-shadow: 0 0 6px var(--blue-accent);
    animation: meterPulse 3.6s ease-in-out infinite;
}
.product-card:nth-child(2) .card-meter .bar i { width: 80%; animation-delay: .4s; }
.product-card:nth-child(3) .card-meter .bar i { width: 45%; animation-delay: .8s; }
@keyframes meterPulse {
    0%,100% { opacity: .65; }
    50%     { opacity: 1; }
}

/* mini code/SVG line art tucked into corner of cards */
.product-card .card-art {
    position: absolute;
    top: 1.2rem; right: 1.2rem;
    width: 64px; height: 64px;
    opacity: .25;
    transition: opacity .3s ease, transform .3s ease;
}
.product-card:hover .card-art {
    opacity: .9;
    transform: rotate(15deg);
}

/* ── TLDNXS SHOWCASE ENHANCEMENTS ──────────── */
.tldnxs-showcase {
    overflow: hidden;
}
.tldnxs-showcase::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(90deg, rgba(106,191,214,.04) 1px, transparent 1px),
        linear-gradient(0deg, rgba(106,191,214,.04) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
    mask-image: radial-gradient(ellipse at top right, rgba(0,0,0,.9), transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at top right, rgba(0,0,0,.9), transparent 70%);
}
.tldnxs-media img {
    transition: filter .3s ease, transform .3s ease, border-color .3s ease;
}
.tldnxs-media img:hover {
    filter: brightness(1.12) saturate(1.1);
    border-color: var(--blue-accent);
}

/* ── FEATURE LIST animate-in ───────────────── */
.feature-list li {
    position: relative;
    overflow: hidden;
}
.feature-list li::after {
    content: '';
    position: absolute;
    left: 0; bottom: -1px;
    height: 1px; width: 0;
    background: var(--blue-accent);
    transition: width .35s cubic-bezier(.6,.02,.4,1);
}
.feature-list li:hover::after { width: 100%; }
.feature-list li:hover {
    color: var(--text-0);
}

/* ── LIVE SYSTEM MONITOR (new section) ─────── */
.monitor {
    position: relative; z-index: 1;
    padding: 7rem 0;
}
.monitor-head {
    display: flex; align-items: end; justify-content: space-between;
    gap: 2rem; flex-wrap: wrap;
    margin-bottom: 3rem;
}
.monitor-head h2 { margin-bottom: 0; }
.monitor-head .meta {
    font-family: var(--font-mono);
    font-size: .7rem;
    letter-spacing: .25em;
    text-transform: uppercase;
    color: var(--text-2);
    text-align: right;
}
.monitor-head .meta .ok { color: #4ade80; }

.monitor-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 1rem;
}
.monitor-cell {
    border: 1px solid var(--border-strong);
    background: #000;
    padding: 1.6rem;
    position: relative;
    overflow: hidden;
    min-height: 220px;
}
.monitor-cell::before {
    content: '';
    position: absolute;
    top: -1px; left: -1px;
    width: 6px; height: 6px;
    background: var(--blue-accent);
}
.monitor-cell .label {
    font-family: var(--font-mono);
    font-size: .68rem;
    letter-spacing: .25em;
    text-transform: uppercase;
    color: var(--text-2);
    margin-bottom: 1rem;
    display: flex; align-items: center; justify-content: space-between;
}
.monitor-cell .label .dot {
    width: 6px; height: 6px;
    background: var(--blue-accent);
    animation: pulseDot 1.6s ease-in-out infinite;
}
.monitor-cell .label .dot.green { background: #4ade80; }

.monitor-cell .val {
    font-family: var(--font-mono);
    font-size: 2.6rem;
    font-weight: 500;
    color: var(--text-0);
    font-variant-numeric: tabular-nums;
    line-height: 1;
    margin-bottom: .35rem;
}
.monitor-cell .delta {
    font-family: var(--font-mono);
    font-size: .75rem;
    color: var(--blue-accent);
    letter-spacing: .15em;
}
.monitor-cell .delta.up::before { content: '▲ '; }
.monitor-cell .delta.steady { color: var(--text-2); }
.monitor-cell .delta.steady::before { content: '◆ '; color: var(--blue-accent); }

/* Sparkline cell */
.spark-cell { grid-column: span 1; }
.spark {
    width: 100%; height: 90px;
    margin-top: 1rem;
}
.spark path.fill { fill: rgba(106,191,214,.12); }
.spark path.line { fill: none; stroke: var(--blue-accent); stroke-width: 1.5; }
.spark .nub { fill: var(--blue-accent); }

/* Log feed cell (wider) */
.log-cell { grid-column: span 1; }
.log-feed {
    font-family: var(--font-mono);
    font-size: .75rem;
    color: var(--text-1);
    line-height: 1.7;
    height: 130px;
    overflow: hidden;
    position: relative;
}
.log-feed .row {
    display: flex; gap: .8rem;
    border-bottom: 1px dashed var(--border);
    padding: .25rem 0;
}
.log-feed .row .t { color: var(--text-2); flex-shrink: 0; }
.log-feed .row .k { color: var(--blue-accent); flex-shrink: 0; min-width: 64px; }
.log-feed .row .m { color: var(--text-1); }
.log-feed .row.new {
    animation: rowIn .5s ease;
}
@keyframes rowIn {
    from { opacity: 0; transform: translateY(-6px); background: rgba(106,191,214,.06); }
    to   { opacity: 1; transform: translateY(0); background: transparent; }
}

/* Bar histogram cell */
.bars {
    display: flex; align-items: flex-end;
    gap: 4px;
    height: 90px; margin-top: 1rem;
}
.bars i {
    flex: 1;
    background: var(--blue-accent);
    opacity: .35;
    transition: height .8s cubic-bezier(.6,.02,.4,1), opacity .8s;
    box-shadow: 0 0 6px rgba(106,191,214,.4);
    display: block;
}
.bars i.tall { opacity: 1; }

/* Big map / network cell */
.net-cell {
    grid-column: span 1;
    grid-row: span 2;
    min-height: 460px;
}
.net-canvas {
    width: 100%; height: 360px;
    margin-top: 1rem;
    display: block;
}

/* ── CAPABILITIES TIMELINE — interactive ──── */
.cap-list {
    counter-reset: capnum;
    position: relative;
}
.cap-list::before {
    content: '';
    position: absolute;
    top: 0; bottom: 0; left: 0;
    width: 2px;
    background: var(--border);
}
.cap-item {
    position: relative;
    border-left: 0;
    padding-left: 2rem;
}
.cap-item::before {
    content: '';
    position: absolute;
    left: -5px; top: 1.8rem;
    width: 12px; height: 12px;
    background: var(--bg-deep);
    border: 2px solid var(--blue-accent);
    transition: transform .3s ease, box-shadow .3s ease, background-color .3s ease;
}
.cap-item:hover::before {
    background: var(--blue-accent);
    transform: scale(1.4);
    box-shadow: 0 0 14px var(--blue-accent);
}
.cap-item .cap-icon {
    transition: transform .35s ease, stroke .25s ease;
}
.cap-item:hover .cap-icon {
    transform: rotate(-6deg) scale(1.08);
    stroke: #fff;
}

/* ── CONTACT CARDS — animated ──────────────── */
.contact-card {
    position: relative;
    overflow: hidden;
}
.contact-card::after {
    content: '';
    position: absolute;
    inset: auto 0 0 0;
    height: 2px;
    background: var(--blue-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .35s cubic-bezier(.6,.02,.4,1);
}
.contact-card:hover::after { transform: scaleX(1); }
.contact-card:hover svg { stroke: var(--text-0); }
.contact-card svg { transition: stroke .25s ease, transform .25s ease; }
.contact-card:hover svg { transform: translateY(-2px) scale(1.05); }

/* ── BUTTONS — magnetic + sweep ────────────── */
.btn {
    position: relative;
    overflow: hidden;
    isolation: isolate;
    transition: transform .25s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
}
.btn::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.18), transparent);
    transform: translateX(-110%);
    transition: transform .55s cubic-bezier(.6,.02,.4,1);
    z-index: -1;
}
.btn:hover::before { transform: translateX(110%); }
.btn-outline::before {
    background: linear-gradient(90deg, transparent, rgba(106,191,214,.28), transparent);
}

/* ── BACKGROUND — bigger grid that pulses ──── */
.grid-bg {
    background-size: 48px 48px;
    animation: gridScroll 90s linear infinite, gridPulse 9s ease-in-out infinite;
}
@keyframes gridPulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: .55; }
}

/* ── HERO SCAN GUIDES ──────────────────────── */
.hero::before, .hero::after {
    content: '';
    position: absolute;
    z-index: 2;
    pointer-events: none;
    background: var(--blue-accent);
    opacity: .25;
}
.hero::before {
    left: 9vw; top: 5rem; bottom: 1rem;
    width: 1px;
}
.hero::after {
    right: 9vw; top: 5rem; bottom: 1rem;
    width: 1px;
}

/* corner tickers at the edges of the hero */
.hero-corners {
    position: absolute;
    z-index: 3;
    inset: 5rem 9vw 1rem 9vw;
    pointer-events: none;
}
.hero-corners span {
    position: absolute;
    width: 14px; height: 14px;
    border: 1px solid var(--blue-accent);
}
.hero-corners .tl { top: 0; left: 0;  border-right: 0; border-bottom: 0; }
.hero-corners .tr { top: 0; right: 0; border-left: 0;  border-bottom: 0; }
.hero-corners .bl { bottom: 0; left: 0;  border-right: 0; border-top: 0; }
.hero-corners .br { bottom: 0; right: 0; border-left: 0;  border-top: 0; }

/* ── RESPONSIVE ────────────────────────────── */
@media (max-width: 1100px) {
    .monitor-grid { grid-template-columns: 1fr 1fr; }
    .net-cell { grid-column: span 2; grid-row: auto; min-height: 360px; }
}
@media (max-width: 640px) {
    .monitor-grid { grid-template-columns: 1fr; }
    .net-cell { grid-column: auto; min-height: 320px; }
    .hero::before, .hero::after, .hero-corners { display: none; }
    .ticker { font-size: .65rem; }
}

/* ── ACCENT ROTATION on grid-style card sets ──
   Inner pages have card grids (MVV, contact, resources).
   We rotate cyan → magenta → cyan so the brand has rhythm
   without painting everything one color. */
.mvv-card,
.contact-card,
.resource-card,
.blog-card {
    position: relative;
}
.mvv-card { border-top: 2px solid var(--blue-accent); padding-top: 2.2rem; }
.mvv-card:nth-child(2) { border-top-color: var(--accent-purple); }
.mvv-card:nth-child(2) .mvv-icon svg { stroke: var(--accent-purple); }
.mvv-card:nth-child(3) { border-top-color: var(--blue-500); }
.mvv-card:nth-child(3) .mvv-icon svg { stroke: var(--blue-500); }

/* Resource & blog cards rotate the left-bar accent every 3rd card */
.resource-card:nth-child(3n+2),
.blog-card:nth-child(3n+2)     { border-left-color: var(--accent-purple); }
.resource-card:nth-child(3n+2)::after,
.blog-card:nth-child(3n+2)::after { background: var(--accent-purple); }
.resource-card:nth-child(3n+3),
.blog-card:nth-child(3n+3)     { border-left-color: var(--blue-500); }
.resource-card:nth-child(3n+3)::after,
.blog-card:nth-child(3n+3)::after { background: var(--blue-500); }

/* Section labels get a brief glow when revealed */
.section-label {
    text-shadow: 0 0 10px rgba(106,191,214,.25);
}

/* Spark nub upgraded with a magenta inner ring */
.spark .nub { fill: var(--accent-purple); }