/*
Theme Name: Extropy
Theme URI: https://extropynow.online
Author: ExtropyNOW
Description: Tema futurista y transhumanista para divulgación científica. Oscuro, rejilla orbital, tipografía técnica y tarjetas generativas.
Version: 1.1.0
Requires at least: 6.4
Requires PHP: 8.0
License: GPL-2.0-or-later
Text Domain: extropy
*/

:root {
	--bg: #070a12;
	--bg-2: #0b1020;
	--surface: rgba(16, 23, 42, .72);
	--surface-solid: #10172a;
	--line: rgba(140, 180, 255, .12);
	--line-strong: rgba(140, 180, 255, .28);
	--text: #e8edff;
	--muted: #8c98ba;
	/* brand: ExtropyNOW logo green + electric cyan */
	--accent: #7ed957;
	--accent-2: #3ee6ff;
	--accent-3: #8f7bff;
	--accent-ink: #061204;
	--glow: 0 0 0 1px rgba(126, 217, 87, .28), 0 10px 40px -10px rgba(126, 217, 87, .4);
	--radius: 14px;
	--f-head: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
	--f-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
	--f-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
	--wrap: 1180px;
	--narrow: 760px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
	margin: 0;
	background: var(--bg);
	background-image:
		radial-gradient(1200px 600px at 85% -10%, color-mix(in srgb, var(--accent-2) 22%, transparent), transparent 60%),
		radial-gradient(900px 500px at -10% 10%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%);
	background-attachment: fixed;
	color: var(--text);
	font: 400 17px/1.7 var(--f-body);
	-webkit-font-smoothing: antialiased;
	overflow-x: hidden;
}
.bg-grid {
	position: fixed; inset: 0; z-index: -1; pointer-events: none;
	background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
	background-size: 56px 56px;
	mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 75%);
	-webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 75%);
	opacity: .55;
}
::selection { background: var(--accent); color: var(--accent-ink); }
img, svg, video, iframe { max-width: 100%; height: auto; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--text); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3, h4, h5, h6 { font-family: var(--f-head); line-height: 1.15; letter-spacing: -.02em; margin: 1.6em 0 .5em; font-weight: 600; }
.mono { font-family: var(--f-mono); letter-spacing: 0; }
.muted { color: var(--muted); }
.sr-only, .screen-reader-text { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--accent); color: var(--accent-ink); padding: 8px 14px; border-radius: 8px; }
.skip-link:focus { left: 8px; }

.wrap { width: min(var(--wrap), 100% - 32px); margin-inline: auto; }
.wrap.narrow { width: min(var(--narrow), 100% - 32px); }
.center { text-align: center; }
.grid { display: grid; gap: 20px; }

/* ---------- header ---------- */
.site-header {
	position: sticky; top: 0; z-index: 50;
	backdrop-filter: blur(14px) saturate(140%); -webkit-backdrop-filter: blur(14px) saturate(140%);
	background: color-mix(in srgb, var(--bg) 70%, transparent);
	border-bottom: 1px solid transparent; transition: border-color .2s, box-shadow .2s;
}
.site-header.scrolled { border-bottom-color: var(--line); box-shadow: 0 10px 30px -20px #000; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; }
.brand-mark { width: 34px; height: 34px; }
.brand-logo { width: 40px; height: 40px; object-fit: contain; filter: drop-shadow(0 0 10px color-mix(in srgb, var(--accent) 45%, transparent)); }
.site-footer .brand-logo { width: 30px; height: 30px; }
.brand-name { font: 700 19px/1 var(--f-head); letter-spacing: -.01em; }
.site-nav .menu, .site-nav .sub-menu, .site-nav .children { list-style: none; margin: 0; padding: 0; }
.site-nav .menu { display: flex; gap: 4px; align-items: center; }
.site-nav li { position: relative; }
.site-nav a { display: block; padding: 8px 12px; border-radius: 8px; color: var(--muted); text-decoration: none; font-size: 15px; font-weight: 500; transition: color .15s, background .15s; }
.site-nav a:hover, .site-nav .current-menu-item > a, .site-nav .current_page_item > a, .site-nav .current-menu-ancestor > a { color: var(--text); background: var(--surface); }
.site-nav .sub-menu, .site-nav .children {
	position: absolute; top: calc(100% + 6px); left: 0; min-width: 240px; padding: 8px;
	background: var(--surface-solid); border: 1px solid var(--line-strong); border-radius: 12px; box-shadow: 0 20px 50px -20px #000;
	opacity: 0; visibility: hidden; transform: translateY(-4px); transition: .15s;
}
.site-nav li:hover > .sub-menu, .site-nav li:focus-within > .sub-menu, .site-nav li:hover > .children, .site-nav li:focus-within > .children { opacity: 1; visibility: visible; transform: none; }
.site-nav .menu-item-has-children > a::after, .site-nav .page_item_has_children > a::after { content: " ▾"; font-size: 11px; opacity: .6; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line-strong); border-radius: 10px; width: 44px; height: 40px; cursor: pointer; position: relative; }
.nav-toggle span:not(.sr-only) { position: absolute; left: 11px; right: 11px; height: 2px; background: var(--text); transition: .2s; }
.nav-toggle span:nth-child(1) { top: 14px; } .nav-toggle span:nth-child(2) { top: 23px; }
.nav-open .nav-toggle span:nth-child(1) { top: 18px; transform: rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { top: 18px; transform: rotate(-45deg); }

@media (max-width: 900px) {
	.nav-toggle { display: block; }
	.site-nav { position: fixed; inset: 68px 0 0; background: var(--bg); padding: 16px; overflow-y: auto; display: none; border-top: 1px solid var(--line); }
	.nav-open .site-nav { display: block; }
	.site-nav .menu { flex-direction: column; align-items: stretch; }
	.site-nav a { font-size: 18px; padding: 12px; }
	.site-nav .sub-menu, .site-nav .children { position: static; opacity: 1; visibility: visible; transform: none; background: none; border: 0; box-shadow: none; padding: 0 0 0 14px; border-left: 1px solid var(--line); margin-left: 12px; }
	.site-nav .sub-menu a, .site-nav .children a { font-size: 16px; padding: 8px 12px; }
}

/* ---------- buttons ---------- */
.btn {
	display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 999px;
	background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: var(--accent-ink);
	font: 600 15px/1 var(--f-head); text-decoration: none; border: 0; cursor: pointer; box-shadow: var(--glow);
	transition: transform .15s, box-shadow .15s;
}
.btn:hover { color: var(--accent-ink); transform: translateY(-1px); box-shadow: 0 0 0 1px var(--accent), 0 14px 50px -10px color-mix(in srgb, var(--accent) 60%, transparent); }
.btn-ghost { background: transparent; color: var(--text); box-shadow: inset 0 0 0 1px var(--line-strong); }
.btn-ghost:hover { color: var(--text); background: var(--surface); box-shadow: inset 0 0 0 1px var(--accent); }

/* ---------- hero ---------- */
.eyebrow { color: var(--accent); font-size: 13px; text-transform: uppercase; letter-spacing: .08em; margin: 0 0 14px; }
.eyebrow a { color: inherit; text-decoration: none; }
.hero { padding: clamp(48px, 9vw, 110px) 0 40px; }
.hero-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.hero-title { font-size: clamp(42px, 7vw, 84px); line-height: 1; margin: 0 0 22px; letter-spacing: -.035em; font-weight: 700; }
.hero-title em { font-style: normal; background: linear-gradient(100deg, var(--accent), var(--accent-2) 60%, var(--accent-3)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: clamp(17px, 1.6vw, 20px); color: var(--muted); max-width: 60ch; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 34px; }
.telemetry { display: flex; flex-wrap: wrap; gap: 0; margin: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); width: fit-content; }
.telemetry div { padding: 12px 22px; border-right: 1px solid var(--line); }
.telemetry div:last-child { border-right: 0; }
.telemetry dt { font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.telemetry dd { margin: 2px 0 0; font-size: 24px; color: var(--text); font-family: var(--f-head); font-weight: 600; }
.hero-visual { position: relative; }
.orbits { width: 100%; max-width: 480px; display: block; margin-inline: auto; overflow: visible; }
.spin { transform-origin: 200px 200px; animation: spin 24s linear infinite; }
.s2 { animation-duration: 32s; animation-direction: reverse; }
.s3 { animation-duration: 40s; }
.pulse { transform-origin: 200px 200px; animation: pulse 5s ease-in-out infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 50% { transform: scale(1.08); opacity: .8; } }
@media (prefers-reduced-motion: reduce) { .spin, .pulse { animation: none; } html { scroll-behavior: auto; } }
@media (max-width: 900px) {
	.hero-inner { grid-template-columns: 1fr; }
	.hero-visual { order: -1; max-width: 300px; margin: 0 auto -10px; }
}
@media (max-width: 520px) {
	.telemetry { width: 100%; }
	.telemetry div { flex: 1; padding: 10px 12px; }
	.telemetry dd { font-size: 20px; }
}

/* ---------- sections ---------- */
.block { padding: clamp(40px, 6vw, 72px) 0 0; }
.section-head { margin-bottom: 26px; }
.section-head.row { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.section-head p { max-width: 70ch; margin: 6px 0 0; }
.section-title { font-size: clamp(26px, 3.2vw, 38px); margin: 0; }
.section-title .mono { color: var(--accent); font-size: .5em; vertical-align: middle; font-weight: 400; }
.more { color: var(--muted); text-decoration: none; font-size: 14px; }
.more:hover { color: var(--accent); }

.areas { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.area {
	--c: hsl(var(--h) 90% 65%);
	position: relative; display: flex; flex-direction: column; gap: 6px; padding: 24px; min-height: 200px;
	border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--text); text-decoration: none;
	overflow: hidden; transition: border-color .2s, transform .2s;
}
.area::before { content: ""; position: absolute; inset: auto -40% -60% auto; width: 220px; height: 220px; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--c) 35%, transparent), transparent 70%); transition: transform .4s; }
.area:hover { border-color: color-mix(in srgb, var(--c) 60%, transparent); transform: translateY(-3px); color: var(--text); }
.area:hover::before { transform: scale(1.4); }
.area h3 { margin: 4px 0 0; font-size: 22px; }
.area p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.55; flex: 1; }
.area-index { color: var(--c); font-size: 13px; }
.area-foot { font-size: 12px; color: var(--c); text-transform: uppercase; letter-spacing: .08em; margin-top: 12px; }

.principle-list { list-style: none; padding: 0; margin: 0; counter-reset: p; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.principle-list li { counter-increment: p; padding: 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 0 -1px -1px 0; }
.principle-list li::before { content: "P" counter(p, decimal-leading-zero); font-family: var(--f-mono); color: var(--accent-3); font-size: 12px; }
.principle-list h3 { margin: 6px 0 6px; font-size: 19px; }
.principle-list p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.55; }

/* ---------- cards ---------- */
.cards { grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }
.card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; transition: border-color .2s, transform .2s; }
.card:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.card-link { display: flex; flex-direction: column; height: 100%; color: var(--text); text-decoration: none; }
.card-link:hover { color: var(--text); }
.card-cover {
	position: relative; aspect-ratio: 16 / 7; overflow: hidden;
	background:
		radial-gradient(circle at 80% 20%, hsl(var(--h) 95% 62% / .55), transparent 55%),
		radial-gradient(circle at 15% 90%, hsl(calc(var(--h) + 70) 90% 60% / .45), transparent 55%),
		linear-gradient(135deg, hsl(var(--h) 60% 12%), hsl(calc(var(--h) + 40) 50% 8%));
}
.card-cover::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 22px 22px; }
.card-cover img { width: 100%; height: 100%; object-fit: cover; display: block; position: relative; z-index: 1; }
.card-glyph { position: absolute; left: 16px; bottom: 12px; z-index: 1; font-size: 13px; color: rgba(255,255,255,.8); letter-spacing: .1em; }
.card-body { padding: 18px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.card-meta { display: flex; gap: 12px; margin: 0 0 8px; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.card-title { margin: 0 0 8px; font-size: 20px; line-height: 1.25; }
.card-excerpt { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.55; }

.cta-band {
	display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
	padding: clamp(28px, 4vw, 48px); border-radius: calc(var(--radius) + 6px);
	border: 1px solid var(--line-strong);
	background: linear-gradient(120deg, color-mix(in srgb, var(--accent) 14%, transparent), color-mix(in srgb, var(--accent-2) 18%, transparent)), var(--surface);
}
.cta-band h2 { margin: 0 0 6px; font-size: clamp(24px, 3vw, 34px); }
.cta-band p { margin: 0; }

/* ---------- pages & posts ---------- */
.page-hero { padding: clamp(40px, 7vw, 80px) 0 20px; }
.page-title { font-size: clamp(34px, 5.4vw, 60px); margin: 0 0 14px; letter-spacing: -.03em; font-weight: 700; }
.entry-meta { color: var(--muted); font-size: 13px; display: flex; gap: 10px; flex-wrap: wrap; margin: 0; }
.crumbs { font-family: var(--f-mono); font-size: 13px; color: var(--muted); margin-bottom: 14px; display: flex; flex-wrap: wrap; gap: 6px; }
.crumbs a { color: var(--accent); text-decoration: none; }
.crumbs b { font-weight: 400; color: var(--text); }
.entry-cover img { border-radius: var(--radius); }

.entry-content { padding-bottom: 20px; }
.entry-content > * { max-width: 100%; }
.entry-content h2 { font-size: 30px; } .entry-content h3 { font-size: 24px; } .entry-content h4 { font-size: 20px; color: var(--accent); }
.entry-content p, .entry-content li { color: color-mix(in srgb, var(--text) 88%, var(--muted)); }
.entry-content ul, .entry-content ol { padding-left: 1.3em; }
.entry-content li { margin: .3em 0; }
.entry-content ul li::marker { color: var(--accent); }
.entry-content ol li::marker { color: var(--accent); font-family: var(--f-mono); font-size: .85em; }
.entry-content img { border-radius: 10px; }
.entry-content figure { margin: 2em 0; }
.entry-content figcaption, .wp-element-caption { color: var(--muted); font-size: 14px; text-align: center; margin-top: 8px; }
.entry-content blockquote, .wp-block-quote, .wp-block-pullquote {
	margin: 2em 0; padding: 18px 24px; border: 0; border-left: 3px solid var(--accent);
	background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 10%, transparent), transparent); border-radius: 0 12px 12px 0;
	font-family: var(--f-head); font-size: 20px;
}
.entry-content blockquote p { margin: 0 0 .4em; color: var(--text); }
.entry-content cite, .wp-block-quote cite { font-family: var(--f-mono); font-size: 13px; color: var(--muted); font-style: normal; }
.entry-content code, .entry-content kbd { font-family: var(--f-mono); font-size: .88em; background: var(--surface-solid); border: 1px solid var(--line); padding: .1em .4em; border-radius: 6px; }
.entry-content pre, .wp-block-code { font-family: var(--f-mono); font-size: 14px; line-height: 1.6; background: #05070d; border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; overflow-x: auto; color: var(--text); }
.entry-content pre code { background: none; border: 0; padding: 0; }
.entry-content table { width: 100%; border-collapse: collapse; font-size: 15px; }
.entry-content th, .entry-content td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
.entry-content th { background: var(--surface); font-family: var(--f-head); }
.entry-content hr, .wp-block-separator { border: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--line-strong), transparent); margin: 3em 0; }
.entry-content iframe, .wp-block-embed iframe { border-radius: 12px; width: 100%; }
.wp-block-embed__wrapper { position: relative; }
.wp-block-button__link { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: var(--accent-ink) !important; border-radius: 999px; font-family: var(--f-head); font-weight: 600; }
.wp-block-file { background: var(--surface); border: 1px solid var(--line); padding: 14px 18px; border-radius: 12px; }
.wp-block-file .wp-block-file__button { background: var(--accent); color: var(--accent-ink); border-radius: 999px; }
.wp-block-columns { gap: 28px; }
.has-text-align-center { text-align: center; }
.alignleft { float: left; margin: .3em 1.4em 1em 0; } .alignright { float: right; margin: .3em 0 1em 1.4em; } .aligncenter { margin-inline: auto; display: block; }
.alignwide { width: min(1000px, calc(100vw - 32px)); margin-inline: calc(50% - min(500px, 50vw - 16px)); max-width: none !important; }
.alignfull { width: 100vw; margin-inline: calc(50% - 50vw); max-width: none !important; }
/* legacy Elementor markup rendered without the plugin */
.elementor-container, .elementor-row { display: flex; flex-wrap: wrap; gap: 24px; }
.elementor-column { flex: 1 1 280px; min-width: 0; }
.elementor-widget-wrap > * + * { margin-top: 12px; }

.subpages { padding: 30px 0 10px; }
.subpages .section-title { font-size: 24px; margin-bottom: 18px; }
.entry-footer { padding: 10px 0 30px; }
.tags { display: flex; gap: 8px; flex-wrap: wrap; font-size: 12px; }
.tags a { padding: 4px 10px; border: 1px solid var(--line-strong); border-radius: 999px; text-decoration: none; color: var(--muted); }
.tags a:hover { color: var(--accent); border-color: var(--accent); }
.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 30px; }
.post-nav > div { padding: 16px 18px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.post-nav .next { text-align: right; grid-column: 2; }
.post-nav span { display: block; font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 4px; }
.post-nav a { color: var(--text); text-decoration: none; font-family: var(--f-head); font-weight: 600; }
.post-nav a:hover { color: var(--accent); }
@media (max-width: 600px) { .post-nav { grid-template-columns: 1fr; } .post-nav .next { grid-column: 1; } }

.search-form { display: flex; gap: 10px; max-width: 520px; margin: 22px 0; }
.center .search-form { margin-inline: auto; }
.search-form input, .comment-form input:not([type=submit]):not([type=checkbox]), .comment-form textarea {
	flex: 1; padding: 12px 16px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface-solid); color: var(--text); font: inherit; font-size: 15px;
}
.comment-form textarea { border-radius: 14px; width: 100%; }
.search-form input:focus, .comment-form textarea:focus, .comment-form input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent); }
.comment-form .submit { padding: 12px 22px; border: 0; border-radius: 999px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: var(--accent-ink); font: 600 15px var(--f-head); cursor: pointer; }
.comment-list { list-style: none; padding: 0; } .comment-list .children { list-style: none; padding-left: 24px; }
.comment-body { border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin-bottom: 14px; background: var(--surface); }
.pager .nav-links { display: flex; gap: 8px; justify-content: center; margin: 36px 0 0; }
.pager .page-numbers { padding: 8px 14px; border: 1px solid var(--line); border-radius: 10px; text-decoration: none; color: var(--muted); }
.pager .current { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }

.glitch { position: relative; }
.glitch::before, .glitch::after { content: attr(data-text); position: absolute; inset: 0; opacity: .7; }
.glitch::before { color: var(--accent); transform: translate(-2px, 0); clip-path: inset(0 0 55% 0); animation: gl 3s infinite steps(2); }
.glitch::after { color: var(--accent-2); transform: translate(2px, 0); clip-path: inset(55% 0 0 0); animation: gl 2.4s infinite reverse steps(2); }
@keyframes gl { 50% { transform: translate(3px, -1px); } }
@media (prefers-reduced-motion: reduce) { .glitch::before, .glitch::after { animation: none; } }

/* ---------- footer ---------- */
.site-footer { margin-top: clamp(60px, 9vw, 110px); border-top: 1px solid var(--line); background: color-mix(in srgb, var(--bg) 85%, #000); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 30px; padding: 44px 0 30px; }
.footer-grid p { margin: 8px 0 14px; max-width: 46ch; font-size: 15px; }
.sister { font-family: var(--f-mono); font-size: 13px; text-decoration: none; }
.footer-menu { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.footer-menu a { color: var(--muted); text-decoration: none; font-size: 15px; }
.footer-menu a:hover { color: var(--accent); }
.footer-base { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 18px 0 26px; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted); }
.widget-title { font-size: 14px; font-family: var(--f-mono); color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin-top: 0; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; } }

/* ---------- language switcher, social, tags ---------- */
.site-nav { display: flex; align-items: center; gap: 10px; }
.lang-switch { display: inline-flex; border: 1px solid var(--line-strong); border-radius: 999px; padding: 3px; gap: 2px; }
.lang-switch a { padding: 4px 10px; border-radius: 999px; font-size: 12px; color: var(--muted); text-decoration: none; }
.lang-switch a:hover { color: var(--text); background: var(--surface); }
.lang-switch a.is-current { background: var(--accent); color: var(--accent-ink); }
@media (max-width: 900px) { .nav-open .site-nav { display: flex; flex-direction: column; align-items: stretch; } .lang-switch { align-self: flex-start; margin: 12px; } }
.social { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13px; margin: 12px 0 0; }
.social a { text-decoration: none; }
.tag-lang { display: inline-block; padding: 1px 8px; border: 1px solid var(--line-strong); border-radius: 999px; font-size: 10px; letter-spacing: .06em; color: var(--muted); text-transform: none; }

/* ---------- launch: banner ---------- */
.xl-banner { border-bottom: 1px solid var(--line); background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 16%, transparent), color-mix(in srgb, var(--accent-2) 12%, transparent)); }
.xl-banner-inner { display: flex; align-items: center; justify-content: space-between; gap: 10px 20px; flex-wrap: wrap; padding: 10px 0; }
.xl-banner-text { margin: 0; font-size: 15px; display: flex; align-items: center; gap: 10px; }
.xl-banner-text strong { color: var(--accent); }
.xl-banner-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.xl-banner-cta { font-size: 13px; text-decoration: none; padding: 7px 14px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font-weight: 500; }
.xl-banner-cta:hover { color: var(--accent-ink); filter: brightness(1.1); }
.xl-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); flex: none; box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 70%, transparent); animation: xlpulse 1.8s infinite; }
@keyframes xlpulse { 70% { box-shadow: 0 0 0 9px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
@media (prefers-reduced-motion: reduce) { .xl-dot { animation: none; } }

/* ---------- launch: follow buttons & panel ---------- */
.xl-follow { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; border-radius: 999px; font: 600 14px/1 var(--f-head); padding: 8px 14px; color: #fff; border: 1px solid transparent; transition: transform .15s, filter .15s; }
.xl-follow svg { width: 18px; height: 18px; flex: none; }
.xl-follow:hover { color: #fff; transform: translateY(-1px); filter: brightness(1.12); }
.xl-tiktok { background: #000; border-color: rgba(255,255,255,.25); box-shadow: -2px -2px 0 #25f4ee inset, 2px 2px 0 #fe2c55 inset; }
.xl-youtube { background: #ff0033; }
.xl-play { background: var(--accent); color: var(--accent-ink); }
.xl-play:hover { color: var(--accent-ink); }
.xl-sm { padding: 6px 10px; font-size: 12px; } .xl-sm svg { width: 15px; height: 15px; }
.xl-lg { padding: 15px 24px; font-size: 17px; } .xl-lg svg { width: 22px; height: 22px; }
@media (max-width: 600px) { .xl-banner .xl-follow span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); } .xl-lg { flex: 1 1 100%; justify-content: center; } }

.xl-panel { position: relative; margin: 0 0 2.5em; padding: clamp(24px, 4vw, 40px); border-radius: 22px; border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent); background: radial-gradient(600px 240px at 100% 0%, color-mix(in srgb, var(--accent-2) 18%, transparent), transparent 70%), radial-gradient(500px 260px at 0% 100%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%), var(--surface-solid); box-shadow: var(--glow); scroll-margin-top: 90px; }
.xl-panel h2 { margin: 6px 0 8px; font-size: clamp(28px, 4vw, 40px); }
.xl-badge { display: inline-flex; align-items: center; gap: 10px; margin: 0; font-size: 12px; text-transform: uppercase; letter-spacing: .1em; color: var(--accent); }
.xl-lead { color: var(--muted); margin: 0 0 22px; max-width: 58ch; }
.xl-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.xl-center { justify-content: center; margin: 1.5em 0; }
.xl-or { display: flex; align-items: center; gap: 14px; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; margin: 28px 0 14px; }
.xl-or::before, .xl-or::after { content: ""; flex: 1; height: 1px; background: var(--line-strong); }
.xl-form { max-width: 560px; }
.xl-row { display: flex; gap: 10px; }
.xl-row input { flex: 1; min-width: 0; padding: 12px 18px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--bg); color: var(--text); font: inherit; font-size: 16px; }
.xl-row input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent); }
@media (max-width: 480px) { .xl-row { flex-direction: column; } .xl-row .btn { justify-content: center; } }
.xl-consent { display: flex; gap: 10px; align-items: flex-start; margin: 14px 0 6px; font-size: 14px; color: var(--muted); line-height: 1.5; cursor: pointer; }
.xl-consent input { margin-top: 3px; width: 18px; height: 18px; accent-color: var(--accent); flex: none; }
.xl-fine { font-size: 12px; color: var(--muted); margin: 6px 0 0; }
.xl-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.xl-msg { padding: 10px 14px; border-radius: 12px; font-size: 15px; margin: 0 0 14px; }
.xl-msg-ok { background: color-mix(in srgb, var(--accent) 16%, transparent); border: 1px solid var(--accent); color: var(--text); }
.xl-msg-err { background: rgba(255, 70, 90, .12); border: 1px solid rgba(255, 70, 90, .6); color: var(--text); }

/* ---------- physics content ---------- */
.formula { font-family: var(--f-mono); font-size: clamp(18px, 2.4vw, 24px); text-align: center; padding: 18px; margin: 1.4em 0; border: 1px solid var(--line-strong); border-radius: 14px; background: var(--surface); color: var(--text); }
.formula small { display: block; font-size: 13px; color: var(--muted); margin-top: 8px; font-family: var(--f-body); }
.entry-content details { border: 1px solid var(--line); border-radius: 12px; background: var(--surface); padding: 0 18px; margin: 10px 0; }
.entry-content details[open] { border-color: var(--line-strong); }
.entry-content summary { cursor: pointer; padding: 14px 0; font-family: var(--f-head); font-weight: 600; list-style: none; }
.entry-content summary::-webkit-details-marker { display: none; }
.entry-content summary::before { content: "+"; display: inline-block; width: 1.2em; color: var(--accent); font-family: var(--f-mono); }
.entry-content details[open] summary::before { content: "−"; }
.entry-content details > :last-child { margin-bottom: 14px; }
.project-card { border: 1px solid var(--line-strong); border-radius: 18px; padding: 24px 26px; background: var(--surface); margin: 1.5em 0; }
.project-card h3 { margin-top: 0; }

/* ---------- charge lab ---------- */
.charge-lab { margin: 1.6em 0 2em; border: 1px solid var(--line-strong); border-radius: 18px; background: #04060c; overflow: hidden; }
.lab-bar, .lab-foot { display: flex; flex-wrap: wrap; gap: 8px 14px; justify-content: space-between; align-items: center; padding: 10px 12px; background: var(--surface-solid); }
.lab-foot { border-top: 1px solid var(--line); }
.lab-bar { border-bottom: 1px solid var(--line); }
.lab-tools { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.lab-btn { font: 500 13px/1 var(--f-mono); padding: 9px 12px; border-radius: 10px; border: 1px solid var(--line-strong); background: transparent; color: var(--text); cursor: pointer; }
.lab-btn:hover { border-color: var(--accent); }
.lab-btn.is-active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.lab-btn[data-tool="neg"].is-active { background: #ff5a7a; border-color: #ff5a7a; color: #200008; }
.lab-go { border-color: var(--accent-2); color: var(--accent-2); }
.lab-toggle { font: 13px var(--f-mono); color: var(--muted); display: inline-flex; gap: 6px; align-items: center; cursor: pointer; }
.lab-toggle input { accent-color: var(--accent); }
.lab-canvas { display: block; width: 100%; height: auto; aspect-ratio: 960 / 560; touch-action: none; cursor: crosshair; }
.lab-status { margin: 0; font-size: 13px; color: var(--muted); min-height: 1.4em; flex: 1 1 260px; }
.lab-status.win { color: var(--accent); } .lab-status.fail { color: #ff7a90; }
.lab-levels { display: flex; gap: 6px; }
.lab-levels button { font: 12px var(--f-mono); padding: 6px 10px; border-radius: 8px; border: 1px solid var(--line-strong); background: transparent; color: var(--muted); cursor: pointer; }
.lab-levels button.is-active { color: var(--accent-ink); background: var(--accent-2); border-color: var(--accent-2); }
.lab-levels button.done::after { content: " ✓"; }