/*
 Theme Name:   EZDprzewodnikModern
 Theme URI:    https://uwm.edu.pl
 Author:       Bartosz Jaworski, UWM
 Author URI:   https://uwm.edu.pl
 Description:  Nowoczesny motyw przewodnika EZD UWM. Flat Design z elementami glassmorfizmu. Zaprojektowany z myślą o czytelności dokumentacji technicznej.
 Version:      1.0.0
 Requires at least: 5.8
 Tested up to: 6.5
 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:  ezdprzewodnikmodern
 Tags:         flat-design, glassmorphism, documentation, university
*/

/* =============================================
   0. CSS CUSTOM PROPERTIES
   ============================================= */
:root {
    --c-primary:        #003478;
    --c-primary-light:  #0056b3;
    --c-accent:         #00a8e8;
    --c-accent-light:   #33bfef;
    --c-green:          #1f7e33;
    --c-bg:             #f0f4f8;
    --c-surface:        #ffffff;
    --c-border:         #e2e8f0;
    --c-text:           #1a202c;
    --c-muted:          #718096;
    --c-white:          #ffffff;
    --glass-bg:         rgba(255,255,255,0.82);
    --glass-border:     rgba(255,255,255,0.45);
    --glass-blur:       blur(16px);
    --glass-blur-sm:    blur(8px);
    --glass-shadow:     0 4px 30px rgba(0,0,0,0.10);
    --glass-shadow-hover: 0 14px 44px rgba(0,0,0,0.18);
    --grad-primary:     linear-gradient(135deg,#003478 0%,#00a8e8 100%);
    --grad-card:        linear-gradient(160deg,#1f7e33 0%,#003478 100%);
    --grad-card-hover:  linear-gradient(160deg,#00a8e8 0%,#0056b3 100%);
    --sp-xs:  0.25rem;
    --sp-sm:  0.5rem;
    --sp-md:  1rem;
    --sp-lg:  2rem;
    --sp-xl:  4rem;
    --font-body:    'Inter',system-ui,-apple-system,sans-serif;
    --font-heading: 'Manrope',var(--font-body);
    --text-sm:   0.875rem;
    --text-base: 1rem;
    --text-lg:   1.125rem;
    --text-xl:   1.25rem;
    --text-2xl:  1.5rem;
    --text-3xl:  1.875rem;
    --text-4xl:  2.25rem;
    --lh: 1.75;
    --r-sm:   6px;
    --r-md:   12px;
    --r-lg:   20px;
    --r-xl:   28px;
    --r-full: 9999px;
    --sh-sm:  0 1px 3px rgba(0,0,0,0.08),0 1px 2px rgba(0,0,0,0.05);
    --sh-md:  0 4px 6px -1px rgba(0,0,0,0.10),0 2px 4px -1px rgba(0,0,0,0.06);
    --sh-lg:  0 10px 25px -3px rgba(0,0,0,0.12),0 4px 6px -2px rgba(0,0,0,0.05);
    --sh-xl:  0 20px 50px -12px rgba(0,0,0,0.20);
    --tr-fast: 0.15s ease;
    --tr-base: 0.25s ease;
    --tr-slow: 0.4s ease;
    --header-h: 72px;
}

/* =============================================
   1. RESET & BASE
   ============================================= */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;line-height:1.15;}
body{font-family:var(--font-body);font-size:var(--text-base);color:var(--c-text);background-color:var(--c-bg);line-height:var(--lh);overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr-fast);}
a:hover{color:var(--c-accent);}
img{max-width:100%;height:auto;display:block;}
ul,ol{list-style:none;}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:600;line-height:1.3;color:var(--c-text);}

/* =============================================
   2. LAYOUT
   ============================================= */
.site-wrapper{min-height:100vh;display:flex;flex-direction:column;}
.site-main{flex:1;}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 var(--sp-lg);}

/* =============================================
   3. HEADER — GLASSMORPHISM (no video)
   ============================================= */
.site-header{position:sticky;top:0;z-index:200;height:var(--header-h);background:var(--glass-bg);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border-bottom:1px solid var(--glass-border);box-shadow:var(--glass-shadow);transition:box-shadow var(--tr-base),background var(--tr-base);}
.site-header.scrolled{background:rgba(255,255,255,0.95);box-shadow:var(--sh-md);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%;gap:var(--sp-lg);}

/* Brand */
.site-branding{display:flex;align-items:center;gap:var(--sp-md);flex-shrink:0;}
.site-branding a{display:flex;align-items:center;gap:var(--sp-sm);color:var(--c-primary);font-weight:700;font-family:var(--font-heading);transition:color var(--tr-fast);}
.site-branding a:hover{color:var(--c-accent);}
.site-branding .logo-img{width:44px;height:44px;object-fit:contain;flex-shrink:0;}
.logo-text{display:flex;flex-direction:column;gap:1px;}
.logo-text .title-main{font-size:var(--text-lg);font-weight:700;color:var(--c-primary);line-height:1;}
.logo-text .title-sub{font-size:var(--text-sm);font-weight:400;color:var(--c-muted);line-height:1;}

/* Desktop nav */
.nav-primary{display:flex;align-items:center;}
.nav-primary ul{display:flex;align-items:center;gap:var(--sp-xs);}
.nav-primary a{display:block;padding:0.45rem 0.875rem;color:var(--c-text);font-size:var(--text-sm);font-weight:500;border-radius:var(--r-sm);transition:background var(--tr-fast),color var(--tr-fast);white-space:nowrap;}
.nav-primary a:hover,
.nav-primary li.current-menu-item>a,
.nav-primary li.current_page_item>a,
.nav-primary li.current-menu-ancestor>a{background:rgba(0,168,232,0.12);color:var(--c-primary);}
.nav-primary li.current-menu-item>a,
.nav-primary li.current_page_item>a{background:var(--grad-primary);color:var(--c-white);}

/* =============================================
   4. HAMBURGER / MOBILE DRAWER
   ============================================= */
.hamburger-toggle{display:none;width:44px;height:44px;background:none;border:1px solid var(--c-border);border-radius:var(--r-sm);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:9px;transition:border-color var(--tr-fast),background var(--tr-fast);flex-shrink:0;}
.hamburger-toggle:hover{background:rgba(0,52,120,0.06);border-color:var(--c-primary);}
.hamburger-toggle .bar{display:block;width:100%;height:2px;background-color:var(--c-text);border-radius:2px;transition:transform var(--tr-base),opacity var(--tr-base);}
.hamburger-toggle[aria-expanded="true"] .bar:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger-toggle[aria-expanded="true"] .bar:nth-child(2){opacity:0;transform:scaleX(0);}
.hamburger-toggle[aria-expanded="true"] .bar:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.nav-mobile-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.40);z-index:190;opacity:0;transition:opacity var(--tr-base);}
.nav-mobile-overlay.visible{opacity:1;}

.nav-mobile-drawer{position:fixed;top:0;right:-320px;width:300px;max-width:90vw;height:100vh;background:var(--glass-bg);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border-left:1px solid var(--glass-border);box-shadow:var(--sh-xl);z-index:195;overflow-y:auto;padding:var(--sp-lg) var(--sp-md);transition:right var(--tr-slow);display:none;}
.nav-mobile-drawer.open{right:0;}
.drawer-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--sp-lg);padding-bottom:var(--sp-md);border-bottom:1px solid var(--c-border);}
.drawer-close{background:none;border:none;cursor:pointer;padding:0.4rem;color:var(--c-muted);font-size:var(--text-xl);line-height:1;border-radius:var(--r-sm);transition:color var(--tr-fast),background var(--tr-fast);}
.drawer-close:hover{color:var(--c-text);background:rgba(0,0,0,0.05);}
.nav-mobile-drawer nav ul{display:flex;flex-direction:column;gap:var(--sp-xs);}
.nav-mobile-drawer nav a{display:block;padding:0.75rem 1rem;color:var(--c-text);font-weight:500;font-size:var(--text-lg);border-radius:var(--r-md);transition:background var(--tr-fast);}
.nav-mobile-drawer nav a:hover,
.nav-mobile-drawer nav li.current-menu-item>a,
.nav-mobile-drawer nav li.current_page_item>a{background:rgba(0,52,120,0.08);color:var(--c-primary);}

@media(max-width:1024px){
  .nav-primary{display:none;}
  .hamburger-toggle{display:flex;}
  .nav-mobile-overlay,.nav-mobile-drawer{display:block;}
}

/* =============================================
   5. HOME — HERO + CATEGORY CARDS
   ============================================= */
.home-hero{background:var(--grad-primary);color:var(--c-white);padding:var(--sp-xl) 0;text-align:center;position:relative;overflow:hidden;}
.home-hero::before{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");}
.home-hero .container{position:relative;z-index:1;}
.hero-title{font-size:var(--text-4xl);font-weight:700;color:var(--c-white);margin-bottom:var(--sp-sm);}
.hero-subtitle{font-size:var(--text-lg);color:rgba(255,255,255,0.80);max-width:520px;margin:0 auto;}

.categories-section{padding:var(--sp-xl) 0;}
.categories-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--sp-lg);}

.category-card{position:relative;min-height:280px;border-radius:var(--r-xl);overflow:hidden;background-size:cover;background-position:center;background-color:var(--c-primary);box-shadow:var(--sh-md);transition:transform var(--tr-base),box-shadow var(--tr-base);}
.category-card::before{content:'';position:absolute;inset:0;background:var(--grad-card);opacity:0.72;transition:opacity var(--tr-base),background var(--tr-base);z-index:1;}
.category-card:hover{transform:translateY(-6px);box-shadow:var(--glass-shadow-hover);}
.category-card:hover::before{opacity:0.55;background:var(--grad-card-hover);}
.category-card>a{position:absolute;inset:0;z-index:3;display:flex;flex-direction:column;justify-content:flex-end;padding:var(--sp-lg);color:var(--c-white);}
.card-label{font-size:var(--text-sm);font-weight:600;text-transform:uppercase;letter-spacing:0.08em;opacity:0.80;margin-bottom:var(--sp-xs);}
.card-title{font-family:var(--font-heading);font-size:var(--text-2xl);font-weight:700;color:var(--c-white);line-height:1.2;}
.card-glass-badge{position:absolute;top:var(--sp-md);right:var(--sp-md);z-index:4;background:var(--glass-bg);backdrop-filter:var(--glass-blur-sm);-webkit-backdrop-filter:var(--glass-blur-sm);border:1px solid var(--glass-border);border-radius:var(--r-full);padding:0.3rem 0.75rem;font-size:var(--text-sm);font-weight:600;color:var(--c-primary);pointer-events:none;}

/* =============================================
   6. NEWS / POST LISTING
   ============================================= */
.section-header{margin-bottom:var(--sp-lg);}
.section-header h1,.section-header h2{font-size:var(--text-3xl);color:var(--c-primary);display:inline-block;position:relative;}
.section-header h1::after,.section-header h2::after{content:'';display:block;height:4px;width:48px;background:var(--grad-primary);border-radius:var(--r-full);margin-top:0.5rem;}

.news-layout{display:grid;grid-template-columns:280px 1fr;gap:var(--sp-xl);align-items:start;padding:var(--sp-xl) 0;}
.news-main{min-width:0;}

/* Sidebar */
.sidebar-panel{background:var(--glass-bg);backdrop-filter:var(--glass-blur-sm);-webkit-backdrop-filter:var(--glass-blur-sm);border:1px solid var(--glass-border);border-radius:var(--r-lg);box-shadow:var(--sh-sm);overflow:hidden;position:sticky;top:calc(var(--header-h) + var(--sp-md));}
.sidebar-panel-header{background:var(--grad-primary);padding:var(--sp-md) var(--sp-lg);}
.sidebar-panel-header h2{font-size:var(--text-base);font-weight:600;color:var(--c-white);margin:0;}
.sidebar-item{display:flex;justify-content:space-between;align-items:flex-start;gap:var(--sp-sm);padding:0.75rem var(--sp-lg);border-bottom:1px solid var(--c-border);color:var(--c-text);transition:background var(--tr-fast);}
.sidebar-item:last-child{border-bottom:none;}
.sidebar-item:hover{background:rgba(0,52,120,0.04);color:var(--c-text);}
.sidebar-item .item-title{font-size:var(--text-sm);color:var(--c-text);font-weight:500;line-height:1.4;flex:1;transition:color var(--tr-fast);}
.sidebar-item:hover .item-title{color:var(--c-primary);}
.sidebar-item .item-date{font-size:0.75rem;color:var(--c-muted);white-space:nowrap;flex-shrink:0;margin-top:2px;}

/* News card */
.news-card{background:var(--c-surface);border-radius:var(--r-lg);box-shadow:var(--sh-sm);margin-bottom:var(--sp-lg);overflow:hidden;border:1px solid var(--c-border);transition:box-shadow var(--tr-base),transform var(--tr-base);}
.news-card:hover{box-shadow:var(--sh-lg);transform:translateY(-2px);}
.news-card-link{display:block;color:inherit;}
.news-card-link:hover{color:inherit;}
.news-card-header{background:var(--grad-primary);color:var(--c-white);padding:var(--sp-md) var(--sp-lg);display:flex;justify-content:space-between;align-items:flex-end;gap:var(--sp-md);}
.news-card-header .card-title-text{font-family:var(--font-heading);font-size:var(--text-xl);font-weight:600;color:var(--c-white);line-height:1.3;margin:0;}
.news-card-header .card-date{font-size:var(--text-sm);color:rgba(255,255,255,0.78);white-space:nowrap;flex-shrink:0;}
.news-card-body{padding:var(--sp-lg);line-height:var(--lh);color:var(--c-text);}
.news-card-body p{color:var(--c-text);margin:0;}
.news-card-body img{width:100%;border-radius:var(--r-md);margin:var(--sp-md) 0;box-shadow:var(--sh-sm);}

@media(max-width:900px){
  .news-layout{grid-template-columns:1fr;}
  .sidebar-panel{position:static;}
}

/* =============================================
   7. TRAINING GRID + POST CARD
   ============================================= */
.training-grid,.posts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:var(--sp-lg);padding:var(--sp-xl) 0;}
.training-card-link{display:block;color:inherit;}
.training-card-link:hover{color:inherit;}
.training-card{background:var(--c-surface);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);border:1px solid var(--c-border);transition:transform var(--tr-base),box-shadow var(--tr-base);}
.training-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);}
.training-card-thumbnail{position:relative;height:200px;background:var(--grad-primary);overflow:hidden;}
.training-card-thumbnail img{width:100%;height:100%;object-fit:cover;transition:transform var(--tr-slow);}
.training-card:hover .training-card-thumbnail img{transform:scale(1.05);}
.play-icon{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,52,120,0.30);transition:background var(--tr-base);}
.training-card:hover .play-icon{background:rgba(0,168,232,0.50);}
.play-icon svg{width:56px;height:56px;fill:rgba(255,255,255,0.90);filter:drop-shadow(0 2px 8px rgba(0,0,0,0.30));}
.training-card-body{padding:var(--sp-md) var(--sp-lg);}
.training-card-body h2{font-size:var(--text-lg);color:var(--c-primary);line-height:1.4;}
.card-badge-inline{display:inline-block;background:rgba(0,52,120,0.08);color:var(--c-primary);border-radius:var(--r-full);padding:0.2rem 0.65rem;font-size:0.75rem;font-weight:600;margin-bottom:var(--sp-sm);}

.post-card{position:relative;min-height:260px;border-radius:var(--r-xl);overflow:hidden;background-size:cover;background-position:center;background-color:var(--c-primary);box-shadow:var(--sh-md);transition:transform var(--tr-base),box-shadow var(--tr-base);}
.post-card::before{content:'';position:absolute;inset:0;background:var(--grad-card);opacity:0.70;transition:opacity var(--tr-base),background var(--tr-base);z-index:1;}
.post-card:hover{transform:translateY(-5px);box-shadow:var(--glass-shadow-hover);}
.post-card:hover::before{opacity:0.50;background:var(--grad-card-hover);}
.post-card>a{position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;justify-content:flex-end;padding:var(--sp-lg);color:var(--c-white);}
.post-card h2{font-size:var(--text-xl);font-weight:700;color:var(--c-white);line-height:1.2;}

/* =============================================
   8. INSTRUCTIONS PAGE
   ============================================= */
.instructions-page{max-width:1100px;margin:0 auto;padding:var(--sp-xl) var(--sp-lg);}

/* =============================================
   9. FAQ ACCORDION
   ============================================= */
.faq-page{max-width:900px;margin:0 auto;padding:var(--sp-xl) var(--sp-lg);}
.faq-list{display:flex;flex-direction:column;gap:var(--sp-md);}
.faq-item{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);transition:box-shadow var(--tr-fast);}
.faq-item:hover{box-shadow:var(--sh-md);}
.faq-question{display:flex;align-items:center;gap:var(--sp-md);padding:var(--sp-md) var(--sp-lg);cursor:pointer;user-select:none;transition:background var(--tr-fast);}
.faq-question:hover{background:rgba(0,52,120,0.03);}
.faq-icon{flex-shrink:0;width:36px;height:36px;background:var(--grad-primary);color:var(--c-white);border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:var(--text-lg);}
.faq-question h2{font-size:var(--text-base);font-weight:600;color:var(--c-text);line-height:1.4;flex:1;margin:0;transition:color var(--tr-fast);}
.faq-question:hover h2{color:var(--c-primary);}
.faq-chevron{flex-shrink:0;width:20px;height:20px;color:var(--c-muted);transition:transform var(--tr-base),color var(--tr-fast);}
.faq-item.open .faq-chevron{transform:rotate(180deg);color:var(--c-primary);}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.35s ease,padding var(--tr-base);padding:0 var(--sp-lg);border-top:0 solid var(--c-border);line-height:var(--lh);color:var(--c-muted);}
.faq-item.open .faq-answer{max-height:2000px;padding-top:var(--sp-md);padding-bottom:var(--sp-lg);border-top-width:1px;}
.faq-answer p{margin-bottom:var(--sp-md);color:var(--c-muted);}
.faq-answer p:last-child{margin-bottom:0;}
.faq-answer a{color:var(--c-accent);text-decoration:underline;}

/* =============================================
   10. SINGLE POST / PAGE
   ============================================= */
.post-single-layout,.page-layout{padding:var(--sp-xl) 0;max-width:1280px;margin:0 auto;padding-inline:var(--sp-lg);}
.post-single-grid{display:grid;grid-template-columns:1fr 320px;gap:var(--sp-xl);align-items:start;}
@media(max-width:1024px){.post-single-grid{grid-template-columns:1fr;}.post-thumbnail-aside{display:none;}}
.post-article{background:var(--c-surface);border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-sm);border:1px solid var(--c-border);}
.post-article-header{padding:var(--sp-xl) var(--sp-xl) var(--sp-lg);border-bottom:1px solid var(--c-border);}
.post-article-header h1{font-size:var(--text-3xl);font-weight:700;color:var(--c-primary);margin-bottom:var(--sp-sm);}
.post-article-meta{display:flex;gap:var(--sp-md);color:var(--c-muted);font-size:var(--text-sm);flex-wrap:wrap;}
.post-article-body{padding:var(--sp-xl);line-height:var(--lh);}
.post-article-body h2{font-size:var(--text-2xl);margin:var(--sp-lg) 0 var(--sp-md);color:var(--c-primary);}
.post-article-body h3{font-size:var(--text-xl);margin:var(--sp-lg) 0 var(--sp-sm);color:var(--c-primary-light);}
.post-article-body p{margin-bottom:var(--sp-md);color:var(--c-text);}
.post-article-body ul,.post-article-body ol{list-style:revert;padding-left:1.5em;margin-bottom:var(--sp-md);}
.post-article-body li{margin-bottom:0.4em;}
.post-article-body img{width:100%;border-radius:var(--r-md);box-shadow:var(--sh-md);margin:var(--sp-lg) 0;border:6px solid var(--c-white);}
.post-article-body video{width:100%;border-radius:var(--r-md);}
.post-article-body blockquote{border-left:4px solid var(--c-accent);padding:var(--sp-md) var(--sp-lg);margin:var(--sp-lg) 0;background:rgba(0,168,232,0.06);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--c-muted);font-style:italic;}
.post-article-body table{width:100%;border-collapse:collapse;margin:var(--sp-lg) 0;font-size:var(--text-sm);}
.post-article-body th{background:var(--grad-primary);color:var(--c-white);padding:0.75rem 1rem;text-align:left;font-weight:600;}
.post-article-body td{padding:0.6rem 1rem;border-bottom:1px solid var(--c-border);}
.post-article-body tr:hover td{background:rgba(0,52,120,0.03);}
.post-article-body a{color:var(--c-accent);text-decoration:underline;word-break:break-word;}
.post-thumbnail-aside{position:sticky;top:calc(var(--header-h) + var(--sp-lg));}
.post-thumbnail-aside img{width:100%;border-radius:var(--r-xl);box-shadow:var(--sh-lg);border:6px solid var(--c-white);}

/* =============================================
   11. BREADCRUMB
   ============================================= */
.breadcrumb{padding:var(--sp-md) 0;display:flex;gap:0.5rem;align-items:center;font-size:var(--text-sm);color:var(--c-muted);flex-wrap:wrap;}
.breadcrumb a{color:var(--c-muted);transition:color var(--tr-fast);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--c-border);}
.breadcrumb .current{color:var(--c-primary);font-weight:500;}

/* =============================================
   12. SEARCH FORM
   ============================================= */
.search-header{padding:var(--sp-xl) 0 var(--sp-md);border-bottom:1px solid var(--c-border);margin-bottom:var(--sp-xl);}
.search-header h1{font-size:var(--text-2xl);color:var(--c-primary);margin-bottom:var(--sp-md);}
.search-form{display:flex;gap:var(--sp-sm);max-width:600px;}
.search-form input[type="search"]{flex:1;padding:0.75rem 1rem;border:1px solid var(--c-border);border-radius:var(--r-md);font-size:var(--text-base);font-family:var(--font-body);outline:none;transition:border-color var(--tr-fast),box-shadow var(--tr-fast);background:var(--c-surface);color:var(--c-text);}
.search-form input[type="search"]:focus{border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(0,168,232,0.15);}
.search-form button[type="submit"]{padding:0.75rem 1.5rem;background:var(--grad-primary);color:var(--c-white);border:none;border-radius:var(--r-md);cursor:pointer;font-weight:600;font-size:var(--text-base);font-family:var(--font-body);transition:opacity var(--tr-fast);}
.search-form button[type="submit"]:hover{opacity:0.88;}

/* =============================================
   13. 404
   ============================================= */
.error-404{text-align:center;padding:var(--sp-xl);max-width:600px;margin:0 auto;}
.error-code{font-size:8rem;font-weight:700;background:var(--grad-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1;margin-bottom:var(--sp-md);}
.error-404 h1{font-size:var(--text-2xl);margin-bottom:var(--sp-md);}
.error-404 p{color:var(--c-muted);margin-bottom:var(--sp-lg);}

/* =============================================
   14. FOOTER
   ============================================= */
.site-footer{background:var(--c-primary);color:rgba(255,255,255,0.75);margin-top:auto;padding:var(--sp-xl) 0 var(--sp-lg);}
.footer-grid{display:grid;grid-template-columns:1fr auto;gap:var(--sp-xl);align-items:center;padding-bottom:var(--sp-lg);border-bottom:1px solid rgba(255,255,255,0.12);margin-bottom:var(--sp-md);}
.footer-brand{display:flex;align-items:center;gap:var(--sp-md);}
.footer-brand img{width:52px;height:52px;object-fit:contain;filter:brightness(0) invert(1);opacity:0.85;}
.footer-brand-text{font-size:var(--text-sm);line-height:1.6;color:rgba(255,255,255,0.70);}
.footer-brand-text strong{display:block;font-size:var(--text-base);font-weight:600;color:var(--c-white);margin-bottom:2px;}
.footer-bottom{font-size:var(--text-sm);color:rgba(255,255,255,0.45);text-align:center;}

/* =============================================
   15. BUTTONS
   ============================================= */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;padding:0.625rem 1.25rem;border-radius:var(--r-md);font-family:var(--font-body);font-size:var(--text-sm);font-weight:600;cursor:pointer;border:none;transition:all var(--tr-fast);text-decoration:none;line-height:1.5;}
.btn-primary{background:var(--grad-primary);color:var(--c-white);box-shadow:var(--sh-sm);}
.btn-primary:hover{opacity:0.90;color:var(--c-white);box-shadow:var(--sh-md);transform:translateY(-1px);}

/* =============================================
   16. UTILITIES & WP COMPATIBILITY
   ============================================= */
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0;}
.text-center{text-align:center;}
.py-xl{padding-top:var(--sp-xl);padding-bottom:var(--sp-xl);}
.mt-lg{margin-top:var(--sp-lg);}
.mb-lg{margin-bottom:var(--sp-lg);}
.alignleft{float:left;margin-right:var(--sp-md);margin-bottom:var(--sp-sm);}
.alignright{float:right;margin-left:var(--sp-md);margin-bottom:var(--sp-sm);}
.aligncenter{display:block;margin-left:auto;margin-right:auto;}
.alignwide{max-width:1200px;margin-left:auto;margin-right:auto;}
.wp-caption{margin-bottom:var(--sp-md);font-size:var(--text-sm);color:var(--c-muted);text-align:center;}
.wp-caption img{margin-bottom:0.5rem;}
.page-numbers{display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:36px;padding:0 0.5rem;border:1px solid var(--c-border);border-radius:var(--r-sm);font-size:var(--text-sm);font-weight:500;color:var(--c-text);background:var(--c-surface);transition:all var(--tr-fast);}
.page-numbers:hover{border-color:var(--c-primary);color:var(--c-primary);}
.page-numbers.current{background:var(--grad-primary);color:var(--c-white);border-color:transparent;}
.pagination,.nav-links{display:flex;gap:var(--sp-sm);margin-top:var(--sp-lg);flex-wrap:wrap;align-items:center;}

/* =============================================
   17. RESPONSIVE
   ============================================= */
@media(max-width:768px){
  :root{--sp-xl:2.5rem;}
  .container{padding:0 var(--sp-md);}
  .hero-title{font-size:var(--text-3xl);}
  .categories-grid{grid-template-columns:1fr;}
  .post-article-header,.post-article-body{padding:var(--sp-lg);}
  .faq-page{padding:var(--sp-lg) var(--sp-md);}
  .footer-grid{grid-template-columns:1fr;text-align:center;}
  .footer-brand{justify-content:center;}
}
@media(max-width:480px){
  :root{--sp-lg:1.25rem;}
  .logo-text .title-sub{display:none;}
  .post-article-header h1{font-size:var(--text-2xl);}
}