/*
Theme Name: Fourth Act
Theme URI: https://fourthact.co.uk
Author: Fourth Act Limited
Description: Brand theme for Fourth Act Creative Services. Built to send visitors to Sonic Labs and to publish blog posts about the work Fourth Act does with Sonic Labs. Uses the Spring 2020 brand guide: Open Sans for web, the official palette, and gradient-mapped photography.
Version: 1.0.5
Requires at least: 6.3
Tested up to: 6.8
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: fourthact
*/

/* ---------- Fonts (self-hosted, Open Sans per brand guide web copy) ---------- */
@font-face{font-family:"Open Sans";font-style:normal;font-weight:400;font-display:swap;src:url("assets/fonts/open-sans-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"Open Sans";font-style:normal;font-weight:800;font-display:swap;src:url("assets/fonts/open-sans-latin-800-normal.woff2") format("woff2")}
@font-face{font-family:"Open Sans";font-style:italic;font-weight:800;font-display:swap;src:url("assets/fonts/open-sans-latin-800-italic.woff2") format("woff2")}

/* ---------- Tokens (brand guide colours) ---------- */
:root{
  --ink:#0A262B;      /* main: dark teal */
  --mint:#8ECC94;     /* main: green */
  --coal:#252525;     /* main: charcoal */
  --fog:#E1E1E1;      /* main: light grey */
  --pine:#2A5147;     /* accent */
  --slate:#3B3B3B;    /* accent */
  --focus:var(--ink);
  --font:"Open Sans",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --measure:68ch;
  --wide:1200px;
  --gutter:clamp(1.25rem,4vw,2.5rem);
  --radius:4px;
}
.on-dark{--focus:var(--mint)}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--fog);color:var(--coal);font-family:var(--font);font-size:1.0625rem;line-height:1.65;-webkit-font-smoothing:antialiased}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:var(--pine);text-decoration-thickness:.08em;text-underline-offset:.2em}
a:hover{color:var(--ink)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--focus);outline-offset:3px}
.on-dark a:not(.btn){color:var(--mint)}
.on-dark a:not(.btn):hover{color:#fff}
p{margin:0 0 1.2em}
em,i{font-weight:800}
strong,b{font-weight:800}
h1,h2,h3,h4{font-weight:800;line-height:1.05;margin:0 0 .6em;text-transform:uppercase;letter-spacing:.01em;text-wrap:balance}
h1{font-size:clamp(2.4rem,6.4vw,5rem)}
h2{font-size:clamp(1.7rem,3.6vw,2.75rem)}
h3{font-size:1.3rem;line-height:1.15}
h4{font-size:1.05rem}
h1 em,h2 em,h3 em,.hi{font-style:italic;font-weight:800;color:var(--mint)}
.on-light h1 em,.on-light h2 em,.entry h2 em,.entry h3 em{color:var(--pine)}
.wrap{width:100%;max-width:var(--wide);margin-inline:auto;padding-inline:var(--gutter)}
.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip-link:focus{position:fixed;left:1rem;top:1rem;z-index:100;width:auto;height:auto;clip:auto;background:var(--mint);color:var(--ink);padding:.6rem 1rem;font-weight:800}

/* ---------- Buttons ---------- */
.btn,.wp-block-button__link,.search-submit,.comment-form .submit{display:inline-block;background:var(--mint);color:var(--ink);font:800 1rem/1.2 var(--font);padding:.85rem 1.5rem;border:2px solid var(--mint);border-radius:var(--radius);text-decoration:none;cursor:pointer;transition:background .15s,color .15s,border-color .15s}
.btn:hover,.wp-block-button__link:hover,.search-submit:hover,.comment-form .submit:hover{background:#fff;border-color:#fff;color:var(--ink)}
.btn--ink{background:var(--ink);border-color:var(--ink);color:var(--mint)}
.btn--ink:hover{background:var(--coal);border-color:var(--coal);color:#fff}
.btn--line{background:transparent;color:var(--mint)}
.btn--line:hover{background:var(--mint);border-color:var(--mint);color:var(--ink)}

/* ---------- Header ---------- */
.site-header{background:var(--ink);color:var(--fog);position:relative;z-index:20}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding-block:1rem}
.site-logo{display:block;line-height:0}
.site-logo img{height:48px;width:auto}
.site-logo .custom-logo{height:48px;width:auto}
.site-nav{display:flex;align-items:center;gap:2rem}
.site-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:1.75rem}
.site-nav li a{color:var(--fog);font-weight:800;font-size:.97rem;text-decoration:none;padding:.4rem 0;border-bottom:3px solid transparent}
.site-nav li a:hover,.site-nav .current-menu-item>a,.site-nav .current_page_item>a{color:#fff;border-bottom-color:var(--mint)}
.nav-toggle{display:none;background:none;border:2px solid var(--mint);color:var(--mint);font:800 .95rem var(--font);padding:.5rem .9rem;border-radius:var(--radius);cursor:pointer}
@media (max-width:820px){
  .js .nav-toggle{display:inline-block}
  .js .site-nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--ink);flex-direction:column;align-items:stretch;gap:1.25rem;padding:1.25rem var(--gutter) 1.75rem;border-top:1px solid var(--pine)}
  .js .site-nav.is-open{display:flex}
  .site-nav ul{flex-direction:column;gap:.25rem}
  .site-nav li a{display:block;padding:.6rem 0}
  .no-js .site-header__inner{flex-wrap:wrap}
  .no-js .site-nav{flex-wrap:wrap;gap:1rem}
}

/* ---------- Gradient-mapped imagery (brand: #0A262B > #8ECC94) ---------- */
.duo img,img.duo,.is-style-fa-duotone img{filter:url(#fa-gradient-map)}
.duo--grey img,img.duo--grey{filter:url(#fa-gradient-map-grey)}
.duo{background:var(--ink);overflow:hidden}
.duo img{width:100%;height:100%;object-fit:cover}

/* ---------- Hero ---------- */
.hero{background:var(--ink);color:var(--fog);overflow:hidden}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);align-items:stretch;min-height:min(78vh,720px)}
.hero__text{padding:clamp(3rem,8vw,6.5rem) clamp(1.5rem,4vw,4rem) clamp(3rem,8vw,6.5rem) 0;align-self:center}
.hero h1{color:#fff;margin-bottom:.45em}
.hero__lede{font-size:clamp(1.1rem,1.6vw,1.3rem);max-width:34em;color:var(--fog)}
.hero__actions{display:flex;flex-wrap:wrap;gap:1rem;margin-top:2rem}
.hero__media{position:relative;margin-right:calc(50% - 50vw + 0px);min-height:320px;background:linear-gradient(160deg,var(--pine),var(--ink))}
.hero__media.duo{background:var(--ink)}
.hero__media img{position:absolute;inset:0}
.hero__caption{position:absolute;left:0;bottom:0;background:var(--ink);padding:.7rem 1.1rem;font-size:.9rem}
.hero__caption a{font-weight:800;text-decoration:none}
.hero__caption a:hover{text-decoration:underline}
@media (max-width:820px){
  .hero__grid{grid-template-columns:1fr;min-height:0}
  .hero__text{padding-right:0;padding-bottom:2.25rem}
  .hero__media{margin:0 calc(var(--gutter) * -1);min-height:260px;aspect-ratio:16/10}
}

/* ---------- Sections ---------- */
.section{padding-block:clamp(3rem,7vw,5.5rem)}
.section__head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:2rem}
.section__head h2{margin:0}
.more-link{font-weight:800}

/* ---------- Post cards ---------- */
.post-card{position:relative;display:flex;flex-direction:column}
.post-card__media{aspect-ratio:16/10;display:block}
.post-card__media.is-empty{background:linear-gradient(160deg,var(--pine),var(--ink))}
.post-card__body{padding-top:1rem}
.post-card__meta{font-size:.9rem;color:var(--slate);margin:0 0 .35rem}
.post-card__meta a{color:var(--pine);font-weight:800;text-decoration:none}
.post-card__title{margin:0 0 .5rem;font-size:1.3rem}
.post-card__title a{color:var(--ink);text-decoration:none}
.post-card__title a::after{content:"";position:absolute;inset:0}
.post-card__title a:hover{text-decoration:underline;text-decoration-thickness:.1em}
.post-card__excerpt{margin:0;color:var(--coal)}
.post-card__meta a{position:relative;z-index:1}

.latest{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:clamp(1.5rem,4vw,3.5rem);align-items:start}
.latest__side{display:grid;gap:1.75rem}
.latest__side .post-card{flex-direction:row;gap:1.1rem;align-items:flex-start;border-top:3px solid var(--ink);padding-top:1.1rem}
.latest__side .post-card__media{flex:0 0 38%;aspect-ratio:1/1}
.latest__side .post-card__body{padding-top:0}
.latest__side .post-card__title{font-size:1.1rem}
.latest__side .post-card__excerpt{display:none}
.latest .post-card--lead .post-card__title{font-size:clamp(1.6rem,3vw,2.3rem);line-height:1.05}
@media (max-width:820px){.latest{grid-template-columns:1fr}}

.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2.75rem clamp(1.25rem,3vw,2.25rem)}
@media (max-width:960px){.post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.post-grid{grid-template-columns:1fr}}

/* ---------- Partnership band ---------- */
.band{background:var(--mint);color:var(--ink)}
.band__inner{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:2rem clamp(2rem,6vw,5rem);align-items:center}
.band h2{margin:0}
.band h2 em{color:var(--ink)}
.band p{font-size:1.15rem;margin:0 0 1.5rem}
.band p:last-child{margin-bottom:0}
@media (max-width:820px){.band__inner{grid-template-columns:1fr}}

/* ---------- Page / archive heads ---------- */
.page-head{background:var(--ink);color:var(--fog);padding-block:clamp(2.5rem,6vw,4.5rem)}
.page-head h1{color:#fff;margin:0;font-size:clamp(2.2rem,5vw,4rem)}
.page-head p{max-width:40em;margin:1rem 0 0;font-size:1.15rem}
.page-head .post-meta{margin:1.25rem 0 0;font-size:.95rem;color:var(--fog)}
.page-head .post-meta a{font-weight:800}
.filters{display:flex;flex-wrap:wrap;gap:.6rem;margin:0 0 2.5rem;padding:0;list-style:none}
.filters a{display:block;padding:.4rem .95rem;border:2px solid var(--ink);border-radius:var(--radius);color:var(--ink);font-weight:800;font-size:.95rem;text-decoration:none}
.filters a:hover,.filters .is-current a{background:var(--ink);color:var(--mint)}

/* ---------- Single post ---------- */
.post-hero{margin-top:-1px}
.post-hero .duo{aspect-ratio:21/9;max-height:520px}
.entry{padding-block:clamp(2.5rem,6vw,4.5rem)}
.entry>*{max-width:var(--measure);margin-inline:auto;padding-inline:var(--gutter)}
.entry>.alignwide{max-width:var(--wide)}
.entry>.alignfull{max-width:none;padding-inline:0}
.entry h2,.entry h3{margin-top:1.8em;color:var(--ink)}
.entry h2{font-size:clamp(1.5rem,3vw,2rem)}
.entry h3{font-size:1.2rem}
.entry ul,.entry ol{padding-left:calc(var(--gutter) + 1.2em)}
.entry li{margin-bottom:.4em}
.entry blockquote,.wp-block-quote{margin-block:2rem;border-left:6px solid var(--mint);padding-left:1.25rem;font-weight:800;font-style:italic;font-size:1.25rem;line-height:1.4;color:var(--ink)}
.entry blockquote cite{display:block;margin-top:.6rem;font-size:.9rem;font-weight:400;font-style:normal}
.entry figure{margin-block:2rem}
.entry figcaption{font-size:.9rem;color:var(--slate);margin-top:.5rem}
.entry img{border-radius:var(--radius)}
.entry table{border-collapse:collapse;width:100%;font-size:.97rem}
.entry th,.entry td{border-bottom:1px solid #b9b9b9;padding:.6rem .5rem;text-align:left}
.entry th{font-weight:800}
.entry hr{border:0;border-top:3px solid var(--ink);width:4rem;margin-block:2.5rem}
.entry pre{overflow:auto;background:var(--ink);color:var(--fog);padding:1rem;border-radius:var(--radius);font-size:.9rem}
.wp-block-embed iframe,.entry iframe{max-width:100%}
.wp-block-embed__wrapper,.is-type-video .wp-block-embed__wrapper{position:relative}
.alignleft{float:left;margin:0 1.5rem 1rem 0}.alignright{float:right;margin:0 0 1rem 1.5rem}.aligncenter{margin-inline:auto}

.post-cta{background:var(--mint);color:var(--ink);padding:clamp(1.5rem,4vw,2.5rem);border-radius:var(--radius)}
.post-cta h2{margin:0 0 .5rem!important;font-size:1.6rem;color:var(--ink)}
.post-cta p{margin:0 0 1.25rem}
.post-cta .btn{background:var(--ink);border-color:var(--ink);color:var(--mint)}
.post-cta .btn:hover{background:var(--coal);border-color:var(--coal);color:#fff}
.entry>.post-cta{max-width:calc(var(--measure) + var(--gutter) * 2)}

.post-nav{display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap;margin-top:2.5rem;padding-top:1.5rem;border-top:3px solid var(--ink)}
.post-nav a{font-weight:800;color:var(--ink)}
.post-nav div{max-width:45%}
.post-nav span{display:block;font-weight:400;font-size:.9rem;color:var(--slate)}

/* ---------- Pagination ---------- */
.pagination{margin-top:3rem}
.pagination .nav-links{display:flex;gap:.5rem;flex-wrap:wrap}
.pagination a,.pagination span{display:block;min-width:2.6rem;padding:.5rem .85rem;border:2px solid var(--ink);border-radius:var(--radius);text-align:center;font-weight:800;color:var(--ink);text-decoration:none}
.pagination .current,.pagination a:hover{background:var(--ink);color:var(--mint)}

/* ---------- Search form, comments, 404 ---------- */
.search-form{display:flex;gap:.5rem;flex-wrap:wrap}
.search-field,.comment-form input[type=text],.comment-form input[type=email],.comment-form input[type=url],.comment-form textarea{font:inherit;padding:.8rem 1rem;border:2px solid var(--ink);border-radius:var(--radius);background:#fff;color:var(--coal);width:100%}
.search-field{flex:1 1 14rem;width:auto}
.search-submit{background:var(--ink);border-color:var(--ink);color:var(--mint)}
.comments{padding-block:0 4rem}
.comments>*{max-width:var(--measure);margin-inline:auto;padding-inline:var(--gutter)}
.comment-list{list-style:none;margin:0 auto;padding:0}
.comment-list .children{list-style:none;padding-left:1.5rem}
.comment-body{border-top:3px solid var(--ink);padding:1rem 0;margin-bottom:1rem}
.comment-meta{font-size:.9rem}
.not-found{padding-block:clamp(3rem,8vw,6rem);max-width:var(--measure)}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:var(--fog);padding-block:clamp(2.5rem,6vw,4rem) 1.5rem}
.site-footer__top{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr) auto;gap:2rem 3rem;align-items:start}
.site-footer .site-logo img{height:56px}
.site-footer__note{margin:1rem 0 0;max-width:32em}
.tagline{font-weight:800;font-style:italic;text-transform:uppercase;letter-spacing:.02em;font-size:.95rem;color:var(--mint);margin:1.25rem 0 0}
.footer-nav ul{list-style:none;margin:0;padding:0;display:grid;gap:.5rem}
.footer-nav a{color:var(--fog);font-weight:800;text-decoration:none}
.footer-nav a:hover{color:var(--mint);text-decoration:underline}
.site-footer__base{margin-top:2.5rem;padding-top:1.25rem;border-top:1px solid var(--pine);font-size:.9rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
@media (max-width:820px){.site-footer__top{grid-template-columns:1fr}}

@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

.legal-links a{color:var(--fog)}
.legal-links a:hover{color:var(--mint)}