/*
Theme Name: Starter
Author: Robert Foulger
Description: Minimal classic parent theme.
Version: 0.0.1
Requires PHP: 8.0
Text Domain: starter
*/

/* ==========================================================================
   1. Tokens :root
   ========================================================================== */
:root {
	/* Color */
	--color-text: #111;
	--color-muted: #6b7280;
	--color-bg: #fff;
	--color-bg-alt: #f3f4f6;
	--color-border: #e5e7eb;
	--color-accent: #2563eb;
	--color-accent-hover: #1d4ed8;
	--color-on-accent: #fff;

	/* Type */
	--font-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
	--font-heading: var(--font-body);
	--font-mono: ui-monospace, SFMono-Regular, Menlo, monospace;
	--text-sm: 0.875rem;
	--text-base: 1rem;
	--text-lg: clamp(1.125rem, 1.05rem + 0.4vw, 1.25rem);
	--text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
	--text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
	--text-3xl: clamp(1.875rem, 1.4rem + 2.4vw, 2.75rem);
	--text-4xl: clamp(2.25rem, 1.6rem + 3.25vw, 3.5rem);

	/* Spacing */
	--space-1: 0.25rem;
	--space-2: 0.5rem;
	--space-3: 1rem;
	--space-4: 1.5rem;
	--space-5: 2rem;
	--space-6: 3rem;
	--space-7: 4.5rem;
	--section-space: clamp(3rem, 2rem + 5vw, 6rem);

	/* Shape */
	--radius: 0.5rem;
	--shadow: 0 1px 3px rgb(0 0 0 / 0.1), 0 4px 12px rgb(0 0 0 / 0.06);

	/* Layout */
	--width: 1100px;
	--width-narrow: 700px;
	--gutter: 1rem;
	--logo-height: 3.5rem;
	--tap-size: 2.75rem;

	/* Sticky header. To turn it off, set in the child theme:
	   :root { --header-position: static; --scroll-offset: 0; } */
	--header-position: sticky;
	--scroll-offset: calc(var(--logo-height) + var(--space-3) * 2 + 1px);
}

/* ==========================================================================
   2. Reset
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: var(--scroll-offset); }
body { font: var(--text-base) / 1.6 var(--font-body); color: var(--color-text); background: var(--color-bg); -webkit-font-smoothing: antialiased; }
img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

/* ==========================================================================
   3. Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); line-height: 1.2; text-wrap: balance; margin-block: 1.5em 0.5em; }
:is(h1, h2, h3, h4, h5, h6):first-child { margin-top: 0; }
h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }
p, ul, ol, blockquote, pre, figure, table { margin-bottom: var(--space-4); }
p { text-wrap: pretty; }
ul, ol { padding-left: 1.5em; }
a { color: var(--color-accent); text-underline-offset: 0.2em; }
a:hover { color: var(--color-accent-hover); }
strong, b { font-weight: 600; }
small, figcaption, .wp-caption-text { font-size: var(--text-sm); color: var(--color-muted); }
blockquote { padding-left: var(--space-4); border-left: 4px solid var(--color-border); color: var(--color-muted); }
hr { border: 0; border-top: 1px solid var(--color-border); margin-block: var(--space-5); }
code, pre { font-family: var(--font-mono); font-size: 0.9em; }
code { background: var(--color-bg-alt); padding: 0.1em 0.35em; border-radius: 0.25rem; }
pre { background: var(--color-bg-alt); padding: var(--space-3); border-radius: var(--radius); overflow-x: auto; }
pre code { background: none; padding: 0; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* ==========================================================================
   4. Layout
   ========================================================================== */
.container { width: min(100% - var(--gutter) * 2, var(--width)); margin-inline: auto; }
.container--narrow { --width: var(--width-narrow); }

.section { padding-block: var(--section-space); }
.section--alt { background: var(--color-bg-alt); }
.section--accent { background: var(--color-accent); color: var(--color-on-accent); }
.section--accent :is(h1, h2, h3, a:not(.btn)) { color: inherit; }

/* Vertical rhythm between direct children. */
.stack > * { margin-block: 0; }
.stack > * + * { margin-top: var(--stack-space, var(--space-4)); }

/* Row of items that wraps (buttons, tags, nav links). */
.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); }
.cluster--between { justify-content: space-between; }
.cluster--center { justify-content: center; }

/* Responsive grid: auto-fits columns, or use .grid--2/3/4 for fixed columns from tablet up. */
.grid { display: grid; gap: var(--space-5); grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); }
.grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
@media (min-width: 48em) {
	.grid--2 { grid-template-columns: repeat(2, 1fr); }
	.grid--3 { grid-template-columns: repeat(3, 1fr); }
	.grid--4 { grid-template-columns: repeat(4, 1fr); }
}

.center { text-align: center; }

/* ==========================================================================
   5. Components
   ========================================================================== */
.btn, input[type="submit"] { display: inline-block; padding: 0.75em 1.5em; border: 2px solid var(--color-accent); border-radius: var(--radius); background: var(--color-accent); color: var(--color-on-accent); font-weight: 600; line-height: 1.2; text-align: center; text-decoration: none; cursor: pointer; transition: background-color 0.15s, color 0.15s, border-color 0.15s; }
.btn:hover, input[type="submit"]:hover { background: var(--color-accent-hover); border-color: var(--color-accent-hover); color: var(--color-on-accent); }
.btn--outline { background: transparent; color: var(--color-accent); }
.btn--outline:hover { background: var(--color-accent); border-color: var(--color-accent); }
.btn--light { background: var(--color-on-accent); border-color: var(--color-on-accent); color: var(--color-accent); }
.btn--light:hover { background: transparent; border-color: var(--color-on-accent); color: var(--color-on-accent); }
.btn--lg { padding: 1em 2em; font-size: var(--text-lg); }

label { display: block; margin-bottom: var(--space-1); font-weight: 600; }
:is(input:not([type=checkbox], [type=radio], [type=submit], [type=button]), textarea, select) { width: 100%; padding: 0.65em 0.85em; border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-bg); }
textarea { min-height: 8rem; resize: vertical; }

.card { padding: var(--space-5); border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-bg); }
.card--shadow { border-color: transparent; box-shadow: var(--shadow); }

.accordion { border-top: 1px solid var(--color-border); }
.accordion details { border-bottom: 1px solid var(--color-border); }
.accordion summary { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); padding-block: var(--space-3); font-weight: 600; cursor: pointer; list-style: none; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after { content: ""; flex: none; width: 0.55em; height: 0.55em; border: solid currentColor; border-width: 0 2px 2px 0; transform: rotate(45deg); }
.accordion details[open] > summary::after { transform: rotate(-135deg); }
.accordion summary:hover { color: var(--color-accent); }
.accordion__body { padding-bottom: var(--space-4); }
.accordion__body > :last-child { margin-bottom: 0; }

table { width: 100%; border-collapse: collapse; }
th, td { padding: var(--space-2) var(--space-3); border-bottom: 1px solid var(--color-border); text-align: left; }
th { font-weight: 600; }

/* ==========================================================================
   6. Header and Footer
   ========================================================================== */
.site-header { position: var(--header-position); top: 0; z-index: 30; background: var(--color-bg); border-bottom: 1px solid var(--color-border); }
.admin-bar .site-header { top: var(--wp-admin--admin-bar--height, 0px); }
.site-header .container { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-3); padding-block: var(--space-3); }
.site-logo { display: block; line-height: 0; }
.site-logo img { height: var(--logo-height); width: auto; }
.site-header ul { display: flex; flex-wrap: wrap; gap: var(--space-4); list-style: none; padding: 0; margin: 0; }
.site-header nav a { color: var(--color-text); font-weight: 500; text-decoration: none; }
.site-header nav a:hover, .site-header .current-menu-item > a { color: var(--color-accent); }
/* Submenus: off by default (menu depth 1). Enable with the starter_menu_depth filter. */
.site-header .sub-menu { flex-direction: column; gap: var(--space-3); margin-top: var(--space-3); padding-left: var(--space-4); }
@media (min-width: 48em) {
	.site-header li { position: relative; }
	.site-header .menu-item-has-children > a::after { content: ""; display: inline-block; width: 0.4em; height: 0.4em; margin-left: 0.5em; border: solid currentColor; border-width: 0 2px 2px 0; transform: translateY(-0.15em) rotate(45deg); }
	.site-header .sub-menu { position: absolute; top: 100%; left: 0; z-index: 10; min-width: 13rem; margin: 0; padding: var(--space-2) 0; gap: 0; border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-bg); box-shadow: var(--shadow); visibility: hidden; opacity: 0; }
	.site-header li:last-child > .sub-menu { left: auto; right: 0; }
	.site-header li:hover > .sub-menu, .site-header li:focus-within > .sub-menu { visibility: visible; opacity: 1; }
	.site-header .sub-menu a { display: block; padding: var(--space-2) var(--space-4); white-space: nowrap; }
	.submenu-toggle { display: none; }
}

/* Mobile menu: a drawer that slides in from the right. Everything below only applies when JavaScript is running, so the menu is never hidden without a way to open it. */
.menu-toggle { display: none; place-items: center; position: relative; z-index: 60; width: var(--tap-size); height: var(--tap-size); padding: 0; border: 0; background: none; color: var(--color-text); cursor: pointer; }
.menu-toggle::before, .menu-toggle::after { content: ""; grid-area: 1 / 1; width: 1.5rem; height: 2px; background: currentColor; }
.menu-toggle::before { box-shadow: 0 -7px currentColor, 0 7px currentColor; }
.menu-toggle::after { opacity: 0; }
.menu-toggle[aria-expanded="true"]::before { box-shadow: none; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"]::after { opacity: 1; transform: rotate(-45deg); }
.menu-overlay { display: none; }

@media (max-width: 47.99em) {
	.site-header ul { flex-direction: column; gap: var(--space-3); }
	.js .menu-toggle { display: grid; margin-left: auto; }
	.js .site-header nav { position: fixed; inset: 0 0 0 auto; z-index: 50; width: min(85vw, 20rem); padding: 6rem var(--space-4) var(--space-4); overflow-y: auto; overscroll-behavior: contain; background: var(--color-bg); box-shadow: var(--shadow); transform: translateX(100%); visibility: hidden; }
	.js .site-header nav.is-open { transform: none; visibility: visible; }
	.js .site-header nav a { display: block; font-size: var(--text-lg); }
	.js .site-header .menu-item-has-children { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; }
	.js .site-header .menu-item-has-children > a { flex: 1; }
	.js .site-header .sub-menu { display: none; width: 100%; margin-top: var(--space-2); }
	.js .site-header .submenu-open > .sub-menu { display: flex; }
	.submenu-toggle { display: grid; place-items: center; width: var(--tap-size); height: var(--tap-size); margin-block: -0.6rem; padding: 0; border: 0; background: none; color: var(--color-text); cursor: pointer; }
	.submenu-toggle::before { content: ""; width: 0.55em; height: 0.55em; border: solid currentColor; border-width: 0 2px 2px 0; transform: rotate(45deg); }
	.submenu-toggle[aria-expanded="true"]::before { transform: rotate(-135deg); }
	.js .menu-overlay { display: block; position: fixed; inset: 0; z-index: 40; background: rgb(0 0 0 / 0.4); opacity: 0; visibility: hidden; touch-action: none; }
	.js.menu-open .menu-overlay { opacity: 1; visibility: visible; }
	.menu-open { overflow: hidden; overscroll-behavior: none; }
}
@media (max-width: 47.99em) and (prefers-reduced-motion: no-preference) {
	.js .site-header nav { transition: transform 0.25s ease, visibility 0s 0.25s; }
	.js .site-header nav.is-open { transition: transform 0.25s ease, visibility 0s; }
	.js .menu-overlay { transition: opacity 0.25s ease, visibility 0s 0.25s; }
	.js.menu-open .menu-overlay { transition: opacity 0.25s ease, visibility 0s; }
	.is-resizing .site-header nav, .is-resizing .menu-overlay { transition: none !important; }
}

.site-footer { padding-block: var(--space-6) var(--space-4); border-top: 1px solid var(--color-border); }
.site-footer__title { font-weight: 600; }
.site-footer__logo { display: block; width: fit-content; }
.site-footer__logo img { display: block; height: var(--logo-height); width: auto; }
.site-footer address { font-style: normal; }
.site-footer .stack { --stack-space: var(--space-3); }
.site-footer ul { display: grid; gap: var(--space-2); list-style: none; padding: 0; }
.site-footer a { color: var(--color-text); text-decoration: none; }
.site-footer a:hover { color: var(--color-accent); text-decoration: underline; }
.site-footer__bottom { margin-top: var(--space-6); padding-top: var(--space-4); border-top: 1px solid var(--color-border); font-size: var(--text-sm); color: var(--color-muted); }
.site-footer__bottom p { margin: 0; }

/* ==========================================================================
   7. Posts, Search and Pagination
   ========================================================================== */
.entry-meta { font-size: var(--text-sm); color: var(--color-muted); }
.post-list { display: grid; gap: var(--space-6); }
.post-summary { --stack-space: var(--space-2); }
.post-summary > a { display: block; margin-bottom: var(--space-3); }
.post-summary h2 { font-size: var(--text-2xl); }
.post-summary h2 a { color: inherit; text-decoration: none; }
.post-summary h2 a:hover { color: var(--color-accent); text-decoration: underline; }
.post-summary img, .wp-post-image { border-radius: var(--radius); }
.single .wp-post-image { margin-bottom: var(--space-4); }
.search-form { display: flex; gap: var(--space-2); }
.search-form label { flex: 1; margin: 0; }
.page-numbers { padding: 0.25em 0.75em; border: 1px solid var(--color-border); border-radius: var(--radius); text-decoration: none; }
.page-numbers.current { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-on-accent); }
.page-numbers.dots { border-color: transparent; }
.post-navigation { margin-top: var(--space-5); }
.post-navigation .nav-links { justify-content: space-between; }

/* ==========================================================================
   8. WordPress and Accessibility Essentials
   ========================================================================== */
.sr-only, .screen-reader-text { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.sr-only:focus, .screen-reader-text:focus { position: fixed; top: var(--space-2); left: var(--space-2); z-index: 100; width: auto; height: auto; margin: 0; padding: var(--space-2) var(--space-3); clip-path: none; white-space: normal; background: var(--color-bg); box-shadow: var(--shadow); }
.alignleft { float: left; margin: 0 var(--space-4) var(--space-3) 0; }
.alignright { float: right; margin: 0 0 var(--space-3) var(--space-4); }
.aligncenter { display: block; margin-inline: auto; }
.wp-caption { max-width: 100%; }
.nav-links { display: flex; flex-wrap: wrap; gap: var(--space-3); }