/*
Theme Name: Proteus Global
Theme URI: https://www.proteus-global.com/
Author: Proteus Systems Inc.
Description: A lightweight block theme for Proteus Global — mechanical, process and thermal engineering. On activation it creates the Home, Projects and About & Contact pages, imports the project images into the Media Library and sets up the menu. Every page is edited in the normal WordPress editor; no page builder or plugins required.
Version: 1.0.7
Requires at least: 6.6
Tested up to: 7.1
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: proteus
Update URI: false
*/

/* ---------- Base ---------- */
html { scroll-behavior: smooth; }
body { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
:where(.wp-site-blocks) > * { margin-block-start: 0; }
.wp-site-blocks > main { margin-block-start: 0; }
img { height: auto; }

/* Italic serif accent: italicise words inside a heading to get the blue serif style */
:is(h1, h2, h3, .wp-block-heading) em {
	font-family: var(--wp--preset--font-family--serif);
	font-style: italic;
	font-weight: 400;
	color: var(--wp--preset--color--accent);
	letter-spacing: 0;
}

/* ---------- Small type ---------- */
.eyebrow {
	font-size: 0.6875rem !important;
	font-weight: 700;
	letter-spacing: 0.07em;
	text-transform: uppercase;
	color: var(--wp--preset--color--accent);
	line-height: 1.4;
}
.label {
	font-size: 0.6875rem !important;
	font-weight: 600;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--wp--preset--color--muted);
	line-height: 1.4;
}
.lead { font-size: var(--wp--preset--font-size--large) !important; line-height: 1.45; }
.intro { color: var(--wp--preset--color--muted); max-width: 40rem; }
.body-muted, .body-muted p { color: var(--wp--preset--color--muted); font-size: var(--wp--preset--font-size--small); line-height: 1.7; }
.small-note { font-size: 0.75rem !important; color: var(--wp--preset--color--muted); }

/* ---------- Links & buttons ---------- */
.arrow-link a, a.arrow-link { color: var(--wp--preset--color--ink); }
.arrow-link a::after, a.arrow-link::after,
.wp-block-button.is-style-arrow .wp-block-button__link::after,
.wp-block-button.is-style-outline-light .wp-block-button__link::after {
	content: "↗";
	display: inline-block;
	margin-left: 2.25rem;
	font-size: 1.15em;
	line-height: 1;
	transition: transform .2s ease;
}
.arrow-link a:hover::after, .wp-block-button .wp-block-button__link:hover::after { transform: translate(2px, -2px); }
.wp-block-button.is-style-arrow .wp-block-button__link,
.wp-block-button.is-style-outline-light .wp-block-button__link {
	display: inline-flex; align-items: center; justify-content: space-between; min-width: 11rem;
}
.wp-block-button.is-style-outline-light .wp-block-button__link {
	background: transparent;
	border: 1px solid rgba(248, 248, 244, .55);
	color: var(--wp--preset--color--paper);
}
.wp-block-button.is-style-outline-light .wp-block-button__link:hover { background: rgba(248, 248, 244, .08); }
.text-button a { color: var(--wp--preset--color--ink); font-size: var(--wp--preset--font-size--small); }
.wp-block-buttons.hero-actions { align-items: center; gap: 1.5rem; }

/* ---------- Header ---------- */
.topbar {
	background: var(--wp--preset--color--navy);
	color: var(--wp--preset--color--on-navy);
	padding-top: .55rem !important;
	padding-bottom: .55rem !important;
}
.topbar p { margin: 0; font-size: 0.625rem; letter-spacing: 0.08em; text-transform: uppercase; }
.site-header {
	border-bottom: 1px solid var(--wp--preset--color--line);
	padding-top: 1.1rem !important;
	padding-bottom: 1.1rem !important;
	position: relative;
	z-index: 20;
	background: var(--wp--preset--color--paper);
}
.brand { display: inline-flex; align-items: center; gap: .75rem; text-decoration: none !important; color: var(--wp--preset--color--ink); }
.brand-mark { font-weight: 800; font-size: 1.85rem; color: var(--wp--preset--color--accent); line-height: 1; }
.brand-name { display: flex; flex-direction: column; font-weight: 700; font-size: 1.1rem; letter-spacing: 0.02em; line-height: 1; }
.brand-name small { font-weight: 500; font-size: 0.5rem; letter-spacing: 0.32em; margin-top: .3rem; color: var(--wp--preset--color--muted); }
.site-header .wp-block-navigation { font-size: 0.8125rem; gap: 2.25rem; }
.site-header .wp-block-navigation-item__content { color: var(--wp--preset--color--ink); padding-bottom: .35rem; border-bottom: 1px solid transparent; }
.site-header .wp-block-navigation-item__content:hover { text-decoration: none; color: var(--wp--preset--color--accent); }
.site-header .current-menu-item > .wp-block-navigation-item__content {
	color: var(--wp--preset--color--accent);
	border-bottom-color: var(--wp--preset--color--accent);
}
.wp-block-navigation__responsive-container.is-menu-open { background: var(--wp--preset--color--paper) !important; }
.wp-block-navigation__responsive-container.is-menu-open .wp-block-navigation-item__content { font-size: 1.4rem; }

/* ---------- Sections ---------- */
.section { padding-top: var(--wp--preset--spacing--60) !important; padding-bottom: var(--wp--preset--spacing--60) !important; }
.section.tight-top { padding-top: var(--wp--preset--spacing--50) !important; }
.is-mist { background: var(--wp--preset--color--mist); }
.is-stone { background: var(--wp--preset--color--stone); }
.is-navy { background: var(--wp--preset--color--navy); color: var(--wp--preset--color--paper); }
.is-navy :is(h1, h2, h3, h4) { color: var(--wp--preset--color--paper); }
.is-navy .eyebrow, .is-navy .label { color: #a9bec8; }
.is-navy .body-muted, .is-navy .body-muted p, .is-navy .intro { color: var(--wp--preset--color--on-navy); }
.rule-top { border-top: 1px solid var(--wp--preset--color--line); padding-top: 1.25rem; }
.is-navy .rule-top { border-top-color: rgba(201, 214, 220, .35); }
.section-head { align-items: flex-end !important; margin-bottom: var(--wp--preset--spacing--50) !important; }
.section-head .wp-block-heading { margin-top: .9rem; }
.side-note { color: var(--wp--preset--color--muted); font-size: 0.8125rem !important; max-width: 17rem; margin-left: auto; }
.is-navy .side-note { color: var(--wp--preset--color--on-navy); }

/* ---------- Home hero ---------- */
.hero { padding-top: var(--wp--preset--spacing--50) !important; padding-bottom: var(--wp--preset--spacing--50) !important; }
.hero .wp-block-columns { gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.hero h1 { margin-top: 1.75rem; }
.hero .intro { margin-top: 1.5rem; }
.hero-actions { margin-top: 2rem !important; }
.hero-foot { margin-top: 2.25rem !important; }
.hero-card { border: 1px solid var(--wp--preset--color--line); background: var(--wp--preset--color--mist); padding: 0 !important; gap: 0 !important; }
.hero-card .card-meta { padding: 1rem 1.1rem !important; margin: 0 !important; }
.hero-card .card-meta p { margin: 0; }
.hero-card .card-meta.bottom { border-top: 1px solid var(--wp--preset--color--line); }
.hero-card .wp-block-image { margin: 0; }
.hero-card .wp-block-image img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; display: block; }
.hero-card .card-title { font-size: 0.8125rem !important; }

.cap-strip { border-top: 1px solid var(--wp--preset--color--line); border-bottom: 1px solid var(--wp--preset--color--line); padding-top: 1.1rem !important; padding-bottom: 1.1rem !important; }
.cap-strip p { margin: 0; font-size: 0.8125rem; }
.cap-strip .wp-block-columns { gap: 1rem; }

/* ---------- Cards ---------- */
.project-card { position: relative; }
.project-card .card-tag {
	position: absolute; top: .9rem; left: .9rem; z-index: 2; margin: 0;
	background: rgba(248, 248, 244, .9); padding: .3rem .55rem;
}
.project-card .wp-block-image { margin: 0 0 1.4rem; }
.project-card .wp-block-image img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; display: block; background: #fff; }
.project-card .wp-block-image.is-contain img { object-fit: contain; }
.project-card h3 { margin-top: .7rem; }
.project-card p:not(.eyebrow):not(.card-tag) { color: var(--wp--preset--color--muted); font-size: 0.875rem; }

/* ---------- Approach (navy) ---------- */
.split-pair { gap: 2rem !important; }
.split-pair h4 { font-size: 1.05rem !important; margin-bottom: .3rem; }
.split-pair p { font-size: 0.75rem !important; color: var(--wp--preset--color--on-navy); margin-top: 0; }

/* ---------- Capability rows ---------- */
.cap-row { border-top: 1px solid var(--wp--preset--color--line); padding: 1.6rem 0 !important; margin: 0 !important; align-items: center !important; }
.cap-list { border-bottom: 1px solid var(--wp--preset--color--line); }
.cap-row .num { color: var(--wp--preset--color--muted); font-size: 0.75rem; margin: 0; }
.cap-row h3 { font-size: 1.2rem !important; margin: 0; }
.cap-row p:not(.num) { margin: 0; color: var(--wp--preset--color--muted); font-size: 0.8125rem; }

/* ---------- CTA band ---------- */
.cta-band { padding-top: var(--wp--preset--spacing--50) !important; padding-bottom: var(--wp--preset--spacing--50) !important; }
.cta-band .wp-block-columns { align-items: center !important; }
.cta-band h2 { margin-top: .9rem; font-size: clamp(1.75rem, 3.4vw, 2.5rem) !important; }
.cta-band .body-muted { margin-top: 1.1rem; }
.cta-arrow { text-align: right; margin: 0; }
.cta-arrow a { font-size: 2.75rem; line-height: 1; color: var(--wp--preset--color--ink); display: inline-block; transition: transform .2s ease; }
.cta-arrow a:hover { transform: translate(4px, -4px); text-decoration: none; }

/* ---------- Projects page ---------- */
.page-hero { padding-top: var(--wp--preset--spacing--50) !important; padding-bottom: var(--wp--preset--spacing--50) !important; }
.page-hero h1 { margin-top: 1.5rem; }
.page-hero .wp-block-columns { align-items: flex-end !important; }
.filter-bar { border-top: 1px solid var(--wp--preset--color--line); border-bottom: 1px solid var(--wp--preset--color--line); padding: .75rem 0 !important; gap: .5rem !important; }
.filter-bar .wp-block-button__link {
	background: transparent; color: var(--wp--preset--color--ink); font-size: 0.75rem;
	padding: .65rem 1rem; min-width: 7.5rem; text-align: left;
}
.filter-bar .wp-block-button__link:hover { background: var(--wp--preset--color--mist); }
.filter-bar .is-active .wp-block-button__link { background: var(--wp--preset--color--navy); color: var(--wp--preset--color--paper); }
.filter-bar .count { opacity: .6; margin-left: .5rem; }

.project { border-bottom: 1px solid var(--wp--preset--color--line); padding-top: var(--wp--preset--spacing--50) !important; padding-bottom: var(--wp--preset--spacing--50) !important; }
.project.is-hidden { display: none; }
.project-head { gap: 1.5rem !important; margin-bottom: 1.75rem !important; }
.project-head .num { color: var(--wp--preset--color--muted); font-size: 0.75rem; padding-top: .2rem; margin: 0; }
.project-head h2 { font-size: clamp(1.75rem, 3vw, 2.25rem) !important; margin: .6rem 0 .3rem; }
.project-head .subtitle { color: var(--wp--preset--color--muted); font-size: 0.875rem; margin: 0; }
.project-head .label { margin-top: .4rem; }
.project-body { gap: clamp(1.5rem, 4vw, 3rem) !important; }
.project-body .main-image { margin: 0; }
.project-body .main-image img { width: 100%; display: block; background: #fff; }
.project-body h3 { font-size: 1.45rem !important; line-height: 1.2; margin-top: 0; }
.project-body .body-muted { font-size: 0.875rem; }
.thumbs { margin-top: .75rem !important; gap: .75rem !important; }
.thumbs.wp-block-gallery.has-nested-images figure.wp-block-image { flex-grow: 0; width: calc((100% - 1.5rem) / 3) !important; }
.thumbs.wp-block-gallery.has-nested-images figure.wp-block-image img { aspect-ratio: 3 / 2; object-fit: cover; background: #fff; border: 1px solid var(--wp--preset--color--line); }
.thumbs.wp-block-gallery.has-nested-images figure.wp-block-image figcaption {
	position: static; background: none; color: var(--wp--preset--color--muted); text-shadow: none;
	font-size: 0.6875rem; padding: .35rem 0 0; text-align: left; max-height: none; overflow: visible;
}
.thumbs.wp-block-gallery.has-nested-images figure.wp-block-image:has(figcaption)::before { display: none; }

.facts { margin: 1.75rem 0 0 !important; }
.facts table { border-collapse: collapse; width: 100%; font-size: 0.8125rem; }
.facts td { border: 0; border-top: 1px solid var(--wp--preset--color--line); padding: .85rem 0; vertical-align: top; }
.facts tr:last-child td { border-bottom: 1px solid var(--wp--preset--color--line); }
.facts td:first-child { color: var(--wp--preset--color--muted); width: 32%; padding-right: 1rem; }

.tags { gap: .5rem !important; flex-wrap: wrap; margin-top: 1.25rem !important; }
.tags p { border: 1px solid var(--wp--preset--color--line); background: var(--wp--preset--color--paper); padding: .35rem .65rem; font-size: 0.6875rem; margin: 0; }

/* ---------- About page ---------- */
.big-name { font-size: clamp(2.6rem, 5vw, 3.6rem) !important; line-height: 1.02; margin: 1.75rem 0 1rem; }
.steps .wp-block-column { border-top: 1px solid rgba(201, 214, 220, .35); padding-top: 1.1rem; }
.steps h3 { font-size: 1.35rem !important; margin: 1rem 0 .8rem; line-height: 1.2; }
.steps p:not(.label):not(.eyebrow) { font-size: 0.8125rem; color: var(--wp--preset--color--on-navy); }

.invention { border-top: 1px solid var(--wp--preset--color--line); padding: 1.75rem 0 !important; margin: 0 !important; }
.inventions { border-bottom: 1px solid var(--wp--preset--color--line); }
.invention .year { font-size: 1.6rem; margin: 0; line-height: 1.1; }
.invention .label { margin-top: .3rem; }
.invention h3 { font-size: 1.45rem !important; margin: .6rem 0 .5rem; }
.invention p:not(.eyebrow):not(.year):not(.label) { font-size: 0.8125rem; color: var(--wp--preset--color--muted); margin: .35rem 0 0; }
.invention .people { font-size: 0.6875rem !important; }
.invention .ext { text-align: right; margin: 0; }
.invention .ext a { font-size: 1.5rem; color: var(--wp--preset--color--accent); text-decoration: none; }

.milestones .wp-block-column { border-top: 1px solid var(--wp--preset--color--line); padding-top: 1.1rem; }
.milestones .m-year { font-size: 1.75rem; margin: 0 0 1rem; line-height: 1.1; }
.milestones h3 { font-size: 0.9375rem !important; margin: 0 0 .5rem; letter-spacing: 0; }
.milestones p:not(.m-year) { font-size: 0.75rem; color: var(--wp--preset--color--muted); margin: 0; }

.contact-list .contact-email { font-size: 1.15rem; border-bottom: 1px solid var(--wp--preset--color--line); padding-bottom: .9rem; margin: .5rem 0 0; }
.contact-list .contact-email a { color: var(--wp--preset--color--ink); display: flex; justify-content: space-between; }
.contact-list .contact-email a::after { content: "↗"; color: var(--wp--preset--color--accent); }
.contact-list .contact-phone { font-size: 1.05rem; padding: .7rem 0 1.4rem; border-bottom: 1px solid var(--wp--preset--color--line); margin: 0; }
.contact-list .contact-phone a { color: var(--wp--preset--color--ink); }
.based { gap: 2rem !important; margin-top: 1rem !important; font-size: 0.75rem; }
.based p { margin: 0; }

/* ---------- Footer ---------- */
.site-footer { padding-top: 2.5rem !important; padding-bottom: 1.5rem !important; border-top: 1px solid var(--wp--preset--color--line); }
.site-footer .tagline { color: var(--wp--preset--color--muted); font-size: 0.8125rem; line-height: 1.5; margin: 0; }
.site-footer .footer-email { font-size: 0.8125rem; margin: 0; }
.site-footer .footer-email a { color: var(--wp--preset--color--ink); }
.site-footer .footer-bottom { border-top: 1px solid var(--wp--preset--color--line); margin-top: 2rem !important; padding-top: 1rem; }
.site-footer .footer-bottom p { font-size: 0.6875rem; color: var(--wp--preset--color--muted); margin: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 781px) {
	.topbar .right { display: none; }
	.side-note { margin-left: 0; max-width: none; }
	.cta-arrow { text-align: left; }
	.cap-strip .wp-block-columns { display: grid !important; grid-template-columns: 1fr 1fr; }
	.cap-row { gap: .4rem !important; }
	.cap-row .wp-block-column { flex-basis: 100% !important; }
	.thumbs.wp-block-gallery.has-nested-images figure.wp-block-image { width: calc((100% - 1.5rem) / 3) !important; }
	.invention .ext { text-align: left; }
	.milestones { display: grid !important; grid-template-columns: 1fr 1fr; gap: 2rem 1.5rem !important; }
	.filter-bar .wp-block-button__link { min-width: 0; }
	.site-footer .wp-block-columns { gap: 1rem; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }

/* ---------- Extra block styles ---------- */
.wp-block-button.is-style-text .wp-block-button__link { background: none; color: var(--wp--preset--color--ink); padding-left: 0; padding-right: 0; }
.wp-block-button.is-style-text .wp-block-button__link:hover { background: none; text-decoration: underline; }
.wp-block-separator { border: 0; border-top: 1px solid var(--wp--preset--color--line); opacity: 1; margin-top: var(--wp--preset--spacing--50); }
.project-card h3 a, .cap-row h3 a { color: inherit; }
.wp-block-post-content > *, main > .wp-block-post-content { margin-block-start: 0 !important; margin-block-end: 0; }
.thumbs.wp-block-gallery.has-nested-images figure.wp-block-image:not(#individual-image) { display: block; align-self: flex-start; }
.thumbs.wp-block-gallery.has-nested-images.is-cropped figure.wp-block-image:not(#individual-image) img { flex: none !important; width: 100% !important; height: auto !important; aspect-ratio: 3 / 2; object-fit: cover; }

/* Intro paragraphs line up with the heading above them, wherever they sit */
.intro { margin-right: auto !important; }
.is-layout-constrained > .intro {
	margin-left: max(0px, calc((100% - var(--wp--style--global--content-size)) / 2)) !important;
}

/* Post-nominal under a big name, e.g. "P.Eng." */
.post-nominal {
	font-family: var(--wp--preset--font-family--serif);
	font-style: italic;
	color: var(--wp--preset--color--accent);
	font-size: clamp(1.5rem, 2.4vw, 1.9rem) !important;
	line-height: 1.1;
	margin: -0.35rem 0 1.1rem !important;
}
h1 + .post-nominal { margin-top: .5rem !important; }

/* ---------- Arrows ----------
   Drawn as a thin line icon so phones (iPhone especially) don't turn the
   "↗" character into a blue emoji button. */
:root {
	--proteus-arrow: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.6' stroke-linecap='square'%3E%3Cpath d='M7 17 17 7M8.5 7H17v8.5'/%3E%3C/svg%3E");
}
.arrow-link a::after, a.arrow-link::after,
.wp-block-button.is-style-arrow .wp-block-button__link::after,
.wp-block-button.is-style-outline-light .wp-block-button__link::after,
.contact-list .contact-email a::after {
	content: "" !important;
	width: 1em; height: 1em;
	background-color: currentColor;
	-webkit-mask: var(--proteus-arrow) center / contain no-repeat;
	mask: var(--proteus-arrow) center / contain no-repeat;
	vertical-align: -0.12em;
	flex: none;
}
.contact-list .contact-email a::after { display: inline-block; background-color: var(--wp--preset--color--accent); align-self: center; }
/* Arrow-only links: hide the typed "↗" and draw the icon instead */
.cta-arrow a, .invention .ext a {
	font-size: 0 !important;
	line-height: 0;
	display: inline-block;
	text-decoration: none !important;
}
.cta-arrow a::before, .invention .ext a::before {
	content: "";
	display: inline-block;
	background-color: currentColor;
	-webkit-mask: var(--proteus-arrow) center / contain no-repeat;
	mask: var(--proteus-arrow) center / contain no-repeat;
}
.cta-arrow a::before { width: 2.75rem; height: 2.75rem; }
.invention .ext a::before { width: 1.6rem; height: 1.6rem; }
.invention .ext a { color: var(--wp--preset--color--accent); }

/* ---------- Compact refinements ---------- */
/* Founder highlights + expandable biography */
.highlights { padding-left: 1.1rem; margin: 1.25rem 0 0; color: var(--wp--preset--color--ink); font-size: var(--wp--preset--font-size--small); line-height: 1.6; }
.highlights li { margin-bottom: .55rem; }
.highlights li::marker { color: var(--wp--preset--color--accent); }
.bio-more { margin-top: 1.5rem !important; border-top: 1px solid var(--wp--preset--color--line); padding-top: 1rem; }
.bio-more summary {
	cursor: pointer; list-style: none; font-size: var(--wp--preset--font-size--small);
	color: var(--wp--preset--color--ink); display: inline-flex; align-items: center; gap: .6rem;
}
.bio-more summary::-webkit-details-marker { display: none; }
.bio-more summary::after { content: "+"; font-size: 1.3em; line-height: 1; color: var(--wp--preset--color--accent); }
.bio-more[open] summary::after { content: "−"; }
.bio-more[open] summary { margin-bottom: .75rem; }
.bio-more summary:hover { color: var(--wp--preset--color--accent); }

/* Patents: tighter rows, year + "Filed" on one line, text link */
.invention { padding: 1.25rem 0 !important; }
.invention .year { font-size: 1.35rem; display: flex; align-items: baseline; gap: .6rem; flex-wrap: wrap; }
.invention .year .label { margin: 0; font-size: .625rem !important; }
.invention .eyebrow { margin: 0; }
.invention h3 { font-size: 1.25rem !important; margin: .35rem 0 .3rem; }
.invention p:not(.eyebrow):not(.year):not(.label) { margin-top: .2rem; }
.invention .view-link { margin-top: .6rem !important; font-size: .8125rem !important; }
.invention .view-link a { color: var(--wp--preset--color--accent) !important; }
.invention .view-link a::after { margin-left: .5rem !important; width: .9em !important; height: .9em !important; }

/* Projects: shorter transition between entries */
.project { padding-top: 2.25rem !important; padding-bottom: 2.25rem !important; }
.project-head { margin-bottom: 1.25rem !important; }
.project-head h2 { margin: .4rem 0 .2rem; }
.facts { margin-top: 1.25rem !important; }
.facts td { padding: .6rem 0; }
.project-body .small-note { margin-top: .6rem; }

@media (max-width: 781px) {
	.invention { gap: .4rem !important; }
	.invention h3 { font-size: 1.15rem !important; }
	.project { padding-top: 1.75rem !important; padding-bottom: 1.75rem !important; }
	.project-head { gap: .9rem !important; margin-bottom: 1rem !important; }
	.project-head h2 { font-size: 1.6rem !important; }
	.project-body { gap: 1.25rem !important; }
	.project-body h3 { font-size: 1.25rem !important; }
	.facts { margin-top: 1rem !important; }
}