/*
Theme Name: Hugo Brument XR
Theme URI: https://hugobrument.com
Author: Hugo Brument
Description: Custom block theme for hugobrument.com: dark, modern "XR lab" look with cyan/violet accents, self-hosted fonts, card layouts for projects and publications, and a light style variation.
Requires at least: 6.2
Tested up to: 7.1
Requires PHP: 7.4
Version: 1.0.2
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: hb-xr
*/

/* ==========================================================================
   0. Tokens (colours come from theme.json presets; WP 6.2 declares presets
      on body, newer versions on :root, so alias them on body)
   ========================================================================== */
body {
	--hb-base: var(--wp--preset--color--base);
	--hb-surface: var(--wp--preset--color--surface);
	--hb-surface-2: var(--wp--preset--color--surface-2);
	--hb-border: var(--wp--preset--color--border);
	--hb-text: var(--wp--preset--color--contrast);
	--hb-muted: var(--wp--preset--color--muted);
	--hb-accent: var(--wp--preset--color--accent);
	--hb-accent-2: var(--wp--preset--color--accent-2);
	--hb-gradient: var(--wp--preset--gradient--xr);
	--hb-radius: var(--wp--custom--radius, 14px);
	--hb-shadow: var(--wp--custom--shadow);
	--hb-mono: var(--wp--preset--font-family--mono);
	--hb-heading: var(--wp--preset--font-family--heading);
}

/* ==========================================================================
   1. Page background: soft glow + faint grid (the "tracking space")
   ========================================================================== */
body {
	background-color: var(--hb-base);
	background-image: var(--wp--preset--gradient--glow);
	background-repeat: no-repeat;
	background-size: 100% 900px;
	text-rendering: optimizeLegibility;
	-webkit-font-smoothing: antialiased;
}
.wp-site-blocks {
	position: relative;
	min-height: 100vh;
	display: flex;
	flex-direction: column;
}
.wp-site-blocks::before {
	content: "";
	position: absolute;
	inset: 0 0 auto 0;
	height: 720px;
	pointer-events: none;
	background-image:
		linear-gradient(to right, color-mix(in srgb, var(--hb-text) 5%, transparent) 1px, transparent 1px),
		linear-gradient(to bottom, color-mix(in srgb, var(--hb-text) 5%, transparent) 1px, transparent 1px);
	background-size: 48px 48px;
	-webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 100%);
	mask-image: linear-gradient(to bottom, #000 0%, transparent 100%);
	z-index: 0;
}
.wp-site-blocks > * { position: relative; z-index: 1; }
.wp-site-blocks > .hb-main, .wp-site-blocks > main { flex: 1 0 auto; }

::selection { background: color-mix(in srgb, var(--hb-accent) 35%, transparent); color: var(--hb-text); }

:where(a, button, input, summary):focus-visible {
	outline: 2px solid var(--hb-accent);
	outline-offset: 3px;
	border-radius: 4px;
}

/* ==========================================================================
   2. Header + navigation
   ========================================================================== */
.wp-site-blocks > header,
header.wp-block-template-part {
	position: sticky;
	top: 0;
	z-index: 50;
	margin-block-start: 0;
}
.admin-bar header.wp-block-template-part { top: 32px; }
@media (max-width: 782px) { .admin-bar header.wp-block-template-part { top: 0; } }

.hb-header {
	position: relative;
	isolation: isolate;
	border-bottom: 1px solid color-mix(in srgb, var(--hb-border) 70%, transparent);
	padding-left: var(--wp--style--root--padding-left);
	padding-right: var(--wp--style--root--padding-right);
}
/* Frosted glass lives on a pseudo-element: backdrop-filter on the header
   itself would trap the fixed mobile menu overlay inside the header box. */
.hb-header::before {
	content: "";
	position: absolute;
	inset: 0;
	z-index: -1;
	background: color-mix(in srgb, var(--hb-base) 78%, transparent);
	-webkit-backdrop-filter: saturate(160%) blur(14px);
	backdrop-filter: saturate(160%) blur(14px);
}
.hb-header__inner {
	min-height: 64px;
	gap: 1.5rem;
}

/* Brand: gradient monogram dot + name */
.hb-brand,
.hb-footer .wp-block-site-title { margin: 0; }
.hb-brand a {
	display: inline-flex;
	align-items: center;
	gap: .65rem;
	color: var(--hb-text);
	letter-spacing: -0.01em;
}
.hb-brand a::before {
	content: "HB";
	display: inline-grid;
	place-items: center;
	width: 34px;
	height: 34px;
	border-radius: 10px;
	background: var(--hb-gradient);
	color: var(--wp--preset--color--on-accent);
	font-family: var(--hb-mono);
	font-size: .75rem;
	font-weight: 500;
	letter-spacing: 0;
	box-shadow: 0 0 24px -6px color-mix(in srgb, var(--hb-accent) 70%, transparent);
}
.hb-brand a:hover { text-decoration: none; }

.hb-nav .wp-block-navigation-item__content {
	color: var(--hb-muted);
	padding: .4rem .2rem;
	transition: color .15s ease;
}
.hb-nav .wp-block-navigation-item__content:hover {
	color: var(--hb-text);
	text-decoration: none;
}
.hb-nav .current-menu-item > .wp-block-navigation-item__content,
.hb-nav .wp-block-navigation-item__content[aria-current="page"] {
	color: var(--hb-text);
	box-shadow: inset 0 -2px 0 var(--hb-accent);
}
.hb-nav .wp-block-navigation__container { gap: 1.4rem; }

/* Submenu (PhD > Datasets) */
.hb-nav .wp-block-navigation__submenu-container {
	background: var(--hb-surface) !important;
	border: 1px solid var(--hb-border) !important;
	border-radius: 12px;
	padding: .4rem !important;
	box-shadow: var(--hb-shadow);
	min-width: 180px !important;
}
.hb-nav .wp-block-navigation__submenu-container,
.hb-nav .wp-block-navigation__submenu-container .wp-block-navigation-item__content,
.hb-nav .wp-block-navigation__submenu-container .wp-block-navigation-item__content:hover,
.hb-nav .wp-block-navigation__submenu-container .wp-block-navigation-item__content:focus {
	color: var(--hb-text) !important;
}
.hb-nav .wp-block-navigation__submenu-container .wp-block-navigation-item__content {
	padding: .45rem .7rem !important;
	border-radius: 8px;
}
.hb-nav .wp-block-navigation__submenu-container .wp-block-navigation-item__content:hover {
	background: var(--hb-surface-2);
}
.hb-nav .wp-block-navigation__submenu-icon { color: var(--hb-muted); }

/* Mobile overlay menu */
.hb-nav .wp-block-navigation__responsive-container-open,
.hb-nav .wp-block-navigation__responsive-container-close { color: var(--hb-text); }
.hb-nav .wp-block-navigation__responsive-container.is-menu-open {
	background: var(--hb-base) !important;
	color: var(--hb-text) !important;
	padding: 1.5rem;
}
.hb-nav .wp-block-navigation__responsive-container.is-menu-open .wp-block-navigation__responsive-container-content,
.hb-nav .wp-block-navigation__responsive-container.is-menu-open .wp-block-navigation__container,
.hb-nav .wp-block-navigation__responsive-container.is-menu-open .wp-block-navigation-item { align-items: flex-start !important; }
.hb-nav .wp-block-navigation__responsive-container.is-menu-open .wp-block-navigation__container {
	gap: 1.1rem;
	font-size: 1.35rem;
	font-family: var(--hb-heading);
}
.hb-nav .wp-block-navigation__responsive-container.is-menu-open .wp-block-navigation__submenu-container {
	border: 0 !important;
	box-shadow: none;
	background: transparent !important;
	padding: .3rem 0 0 1rem !important;
}

/* ==========================================================================
   3. Page head + main column
   ========================================================================== */
.hb-main { padding-top: var(--wp--preset--spacing--50); padding-bottom: var(--wp--preset--spacing--60); }
.hb-main--front { padding-top: 0; }
.hb-page-head { margin-bottom: var(--wp--preset--spacing--40); }
.hb-page-title {
	margin: 0;
	position: relative;
	padding-bottom: 1.1rem;
}
.hb-page-title::after {
	content: "";
	position: absolute;
	left: 0;
	bottom: 0;
	width: 64px;
	height: 3px;
	border-radius: 3px;
	background: var(--hb-gradient);
}

/* ==========================================================================
   4. Generic content (works for both block and legacy HTML content)
   ========================================================================== */
.hb-content { color: var(--hb-text); }
.hb-content p:empty { display: none; }
.hb-content > h2 {
	margin-top: var(--wp--preset--spacing--50);
	padding-top: 1.25rem;
	border-top: 1px solid var(--hb-border);
}
.hb-content > h2:first-child,
.hb-content hr + h2,
.hb-content .wp-block-separator + h2 { border-top: 0; padding-top: 0; }
.hb-content hr + h2,
.hb-content .wp-block-separator + h2 { margin-top: 0; }
.hb-content > h2:first-child { margin-top: 0; }
.hb-content h3 { margin-top: 2rem; }
.hb-content h3 + ul, .hb-content h3 + p { margin-top: .6rem; }
.hb-content strong { color: var(--hb-text); font-weight: 650; }
.hb-content hr,
.hb-content .wp-block-separator {
	border: 0;
	height: 1px;
	background: var(--hb-border);
	margin: var(--wp--preset--spacing--50) 0;
	opacity: 1;
}

/* Lists: small gradient markers */
.hb-content ul:not([class*="wp-block-navigation"]):not(.blocks-gallery-grid) {
	list-style: none;
	padding-left: 0;
}
.hb-content ul:not([class*="wp-block-navigation"]):not(.blocks-gallery-grid) > li {
	position: relative;
	padding-left: 1.4rem;
	margin: .45rem 0;
}
.hb-content ul:not([class*="wp-block-navigation"]):not(.blocks-gallery-grid) > li::before {
	content: "";
	position: absolute;
	left: .15rem;
	top: .72em;
	width: 7px;
	height: 7px;
	border-radius: 2px;
	background: var(--hb-gradient);
	transform: rotate(45deg);
}
.hb-content ol { padding-left: 1.4rem; }
.hb-content ol li::marker { color: var(--hb-accent); font-family: var(--hb-mono); }

/* Media */
.hb-content img { border-radius: var(--hb-radius); height: auto; max-width: 100%; }
.hb-content .wp-block-image img { border: 1px solid var(--hb-border); }
.hb-content iframe,
.hb-content video {
	display: block;
	width: 100% !important;
	max-width: 100%;
	height: auto !important;
	aspect-ratio: 16 / 9;
	border: 1px solid var(--hb-border);
	border-radius: var(--hb-radius);
	background: #000;
}
.hb-content .wp-block-embed__wrapper iframe { position: static; }
.hb-content .wp-has-aspect-ratio .wp-block-embed__wrapper::before { display: none; }
.hb-content .wp-block-embed, .hb-content .wp-block-video { margin: 1.5rem 0; }

/* Tables + code */
.hb-content table { width: 100%; border-collapse: collapse; font-size: var(--wp--preset--font-size--small); }
.hb-content th, .hb-content td { border-bottom: 1px solid var(--hb-border); padding: .6rem .5rem; text-align: left; }
.hb-content pre, .hb-content code { font-family: var(--hb-mono); }
.hb-content pre { background: var(--hb-surface); border: 1px solid var(--hb-border); border-radius: 10px; padding: 1rem; overflow-x: auto; }
.hb-content pre:has(> code:empty) { display: none; }

/* Buttons */
.wp-block-button .wp-block-button__link { transition: transform .15s ease, background-color .15s ease, color .15s ease, box-shadow .15s ease; }
.wp-block-button .wp-block-button__link:hover { transform: translateY(-1px); text-decoration: none; }
.wp-block-button.is-style-outline .wp-block-button__link,
.wp-block-button.is-style-ghost .wp-block-button__link {
	background: transparent;
	color: var(--hb-text);
	border: 1px solid var(--hb-border);
}
.wp-block-button.is-style-outline .wp-block-button__link:hover,
.wp-block-button.is-style-ghost .wp-block-button__link:hover {
	border-color: var(--hb-accent);
	color: var(--hb-accent);
	background: transparent;
}

/* ==========================================================================
   5. Reusable building blocks (block styles registered in functions.php)
   ========================================================================== */
.hb-eyebrow,
.is-style-eyebrow {
	font-family: var(--hb-mono);
	font-size: var(--wp--preset--font-size--x-small) !important;
	letter-spacing: .12em;
	text-transform: uppercase;
	color: var(--hb-accent);
	margin-bottom: .25rem;
}
.hb-muted, .is-style-muted { color: var(--hb-muted); }
.is-style-lead { font-size: var(--wp--preset--font-size--large) !important; line-height: 1.55; color: color-mix(in srgb, var(--hb-text) 88%, var(--hb-muted)); }
.is-style-gradient-text, .hb-gradient-text {
	background: var(--hb-gradient);
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent !important;
}

/* Card */
.hb-card,
.is-style-card {
	background: linear-gradient(180deg, color-mix(in srgb, var(--hb-surface-2) 80%, transparent), var(--hb-surface));
	border: 1px solid var(--hb-border);
	border-radius: var(--hb-radius);
	padding: 1.4rem 1.5rem !important;
	box-shadow: var(--hb-shadow);
	transition: border-color .2s ease, transform .2s ease;
	height: 100%;
}
.hb-card:hover, .is-style-card:hover { border-color: color-mix(in srgb, var(--hb-accent) 55%, var(--hb-border)); }
.is-style-card > :first-child { margin-top: 0; }
.is-style-card h3, .is-style-card h4 { margin-top: .2rem; font-size: 1.1rem; }
.is-style-card p { font-size: var(--wp--preset--font-size--small); color: var(--hb-muted); }
.is-style-card p strong { color: var(--hb-text); }
.wp-block-columns.is-style-card-grid { gap: 1.1rem; }
.wp-block-columns.is-style-card-grid > .wp-block-column { display: flex; }
.wp-block-columns.is-style-card-grid > .wp-block-column > .is-style-card { width: 100%; }

/* Tags / pills */
.is-style-pills { display: flex; flex-wrap: wrap; gap: .4rem; }
p.is-style-pills { font-family: var(--hb-mono); font-size: .75rem; color: var(--hb-muted); }

/* ==========================================================================
   6. Front page sections
   ========================================================================== */
.hb-hero {
	padding-top: clamp(2.5rem, 8vw, 6rem) !important;
	padding-bottom: clamp(2rem, 6vw, 4rem) !important;
}
.hb-hero h1 {
	font-size: var(--wp--preset--font-size--huge);
	line-height: 1.02;
	letter-spacing: -0.035em;
	margin: .35rem 0 1rem;
}
.hb-hero .is-style-lead { max-width: 38rem; }
.hb-hero .wp-block-buttons { margin-top: 1.6rem; gap: .6rem; }
.hb-photo img {
	aspect-ratio: 1;
	object-fit: cover;
	border-radius: 28px !important;
	border: 1px solid var(--hb-border) !important;
	box-shadow: 0 0 0 6px color-mix(in srgb, var(--hb-base) 100%, transparent), 0 0 0 7px color-mix(in srgb, var(--hb-accent) 45%, transparent), 0 30px 80px -30px color-mix(in srgb, var(--hb-accent-2) 70%, transparent);
}
.hb-photo { margin: 0 auto; max-width: 340px; }

/* Key numbers */
.hb-stats {
	display: grid !important;
	grid-template-columns: repeat(3, 1fr);
	gap: 1px !important;
	background: var(--hb-border);
	border: 1px solid var(--hb-border);
	border-radius: var(--hb-radius);
	overflow: hidden;
}
.hb-stats > * { margin: 0 !important; background: var(--hb-surface); padding: 1.2rem 1.25rem; }
.hb-stat__num {
	font-family: var(--hb-heading);
	font-size: clamp(1.6rem, 3vw, 2.1rem) !important;
	font-weight: 600;
	line-height: 1.1;
	margin: 0 !important;
}
.hb-stat__label { margin: .3rem 0 0 !important; font-size: var(--wp--preset--font-size--x-small) !important; color: var(--hb-muted); line-height: 1.4; }

.hb-section { margin-top: var(--wp--preset--spacing--60) !important; }
.hb-section > .wp-block-heading,
.hb-about > .wp-block-heading,
.hb-content .hb-section > h2,
.hb-content .hb-about > h2 { margin-top: .2rem !important; margin-bottom: 1.4rem; border-top: 0 !important; padding-top: 0 !important; }
.hb-section > .is-style-eyebrow + *, .hb-about > .is-style-eyebrow + * { margin-top: .2rem !important; }
.hb-card__num { font-family: var(--hb-mono); font-size: .75rem !important; color: var(--hb-accent); margin: 0 0 .6rem !important; letter-spacing: .08em; }

/* About block on home */
.hb-about { margin-top: var(--wp--preset--spacing--60) !important; }
.hb-about p:not(.is-style-eyebrow):not(.hb-updated) { color: color-mix(in srgb, var(--hb-text) 90%, var(--hb-muted)); }
.hb-updated { font-family: var(--hb-mono); font-size: .75rem !important; color: var(--hb-muted); }

/* ==========================================================================
   7. Page-specific polish for the existing (legacy HTML) content
   ========================================================================== */

/* Projects page: list of <li><h4> becomes a card grid */
.hb-content ul:has(> li > h4) {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(min(100%, 330px), 1fr));
	gap: 1rem;
}
.hb-content ul:has(> li > h4) > li {
	margin: 0;
	padding: 1.25rem 1.35rem;
	background: var(--hb-surface);
	border: 1px solid var(--hb-border);
	border-radius: var(--hb-radius);
	transition: border-color .2s ease;
}
.hb-content ul:has(> li > h4) > li:hover { border-color: color-mix(in srgb, var(--hb-accent) 55%, var(--hb-border)); }
.hb-content ul:has(> li > h4) > li::before { display: none; }
.hb-content ul:has(> li > h4) h4 {
	margin: 0;
	font-family: var(--wp--preset--font-family--body);
	font-weight: 400;
	font-size: var(--wp--preset--font-size--small);
	color: var(--hb-muted);
	line-height: 1.6;
}
.hb-content ul:has(> li > h4) h4 a {
	display: block;
	font-family: var(--hb-heading);
	font-size: 1.2rem;
	font-weight: 600;
	color: var(--hb-text);
	margin-bottom: .35rem;
}
.hb-content ul:has(> li > h4) h4 a::after { content: " ↗"; color: var(--hb-accent); font-size: .9em; }
.hb-content > h3:first-child { font-family: var(--wp--preset--font-family--body); font-weight: 400; font-size: var(--wp--preset--font-size--medium); color: var(--hb-muted); margin-top: 0; }

/* Publications page: each reference becomes a card */
.page-id-130 .hb-content > ul > li,
.page-id-130 .hb-content > .wp-block-list > li {
	padding: 1rem 1.2rem 1rem 1.3rem;
	margin: .7rem 0;
	background: var(--hb-surface);
	border: 1px solid var(--hb-border);
	border-left: 3px solid transparent;
	border-image: none;
	border-radius: 10px;
	font-size: var(--wp--preset--font-size--small);
	line-height: 1.6;
	color: color-mix(in srgb, var(--hb-text) 85%, var(--hb-muted));
}
.page-id-130 .hb-content > ul > li::before,
.page-id-130 .hb-content > .wp-block-list > li::before { display: none; }
.page-id-130 .hb-content > ul > li:hover { border-left-color: var(--hb-accent); }
.page-id-130 .hb-content > ul > li a[href*="doi.org"] {
	display: inline-block;
	font-family: var(--hb-mono);
	font-size: .72rem;
	letter-spacing: .06em;
	padding: .05rem .5rem;
	border: 1px solid color-mix(in srgb, var(--hb-accent) 45%, var(--hb-border));
	border-radius: 999px;
	margin-left: .2rem;
	white-space: nowrap;
}
.page-id-130 .hb-content > ul > li a[href*="doi.org"]:hover { background: color-mix(in srgb, var(--hb-accent) 14%, transparent); text-decoration: none; }
.page-id-130 .hb-content > ul > p { margin: .7rem 0 1.2rem; }
.page-id-130 .hb-content > ul > p iframe { max-width: 640px; }
.page-id-130 .hb-content > p:first-child {
	padding: 1rem 1.2rem;
	border: 1px dashed var(--hb-border);
	border-radius: 10px;
	color: var(--hb-muted);
	font-size: var(--wp--preset--font-size--small);
}
.page-id-130 .hb-content > h3 { padding-top: 1rem; }

/* CV page: compact section headings */
.page-id-27 .hb-content h3 {
	font-family: var(--hb-mono);
	font-size: .8rem;
	font-weight: 500;
	text-transform: uppercase;
	letter-spacing: .1em;
	color: var(--hb-accent);
	margin-top: 1.8rem;
}
.page-id-27 .hb-content li { font-size: var(--wp--preset--font-size--small); }

/* ==========================================================================
   8. Footer
   ========================================================================== */
.hb-footer {
	margin-top: auto;
	border-top: 1px solid var(--hb-border);
	background: color-mix(in srgb, var(--hb-surface) 60%, transparent);
	padding: var(--wp--preset--spacing--50) var(--wp--style--root--padding-right) 1.5rem var(--wp--style--root--padding-left);
	font-size: var(--wp--preset--font-size--small);
}
.hb-footer__inner { gap: 2rem 3rem; }
.hb-footer__inner > * { gap: .35rem !important; }
.hb-footer p { margin: 0; }
.hb-footer a { color: var(--hb-text); }
.hb-footer a:hover { color: var(--hb-accent); }
.hb-footer__legal { margin-top: 2rem !important; color: var(--hb-muted); font-size: var(--wp--preset--font-size--x-small); }

/* ==========================================================================
   9. Responsive + motion
   ========================================================================== */
@media (max-width: 781px) {
	.hb-stats { grid-template-columns: repeat(2, 1fr); }
	.hb-hero .wp-block-columns { flex-direction: column-reverse; gap: 2rem; }
	.hb-photo { max-width: 200px; margin: 0; }
	.hb-hero h1 { font-size: 2.6rem; }
	.hb-header__inner { min-height: 58px; }
}
@media (prefers-reduced-motion: reduce) {
	*, *::before, *::after { transition: none !important; scroll-behavior: auto !important; }
}
@media print {
	body { background: #fff; color: #000; }
	.wp-site-blocks::before, header.wp-block-template-part, .hb-footer { display: none; }
}