/* ============================================================
   MODERN 2026 RESTYLE - layout, components, hamburger, dark-mode extras
   Layer for the Resizable theme family (StudentLife/TechCrates/Technik).
   Loaded AFTER style.css, colors/*.css and custom.css.
   Rollback: remove the two enqueues + restore header.php/footer.php
   from the backup (see ~/migration/theme-restyle-backup-2026-08-11/).
============================================================ */

:root { color-scheme: light; }
body.dark { color-scheme: dark; }

/* ---------- Fluid layout ---------- */
#wrapper,
.inner-wrap { width: min(1200px, 94%); max-width: 1200px; margin-inline: auto; }

#container {
    float: none;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 32px;
    padding: 26px 0 44px;
}

#content { float: none; width: 100%; min-width: 0; z-index: auto; }
#sidebar { float: none; width: 100%; z-index: auto; }
#content-loop { float: none; width: 100%; }
.one-col { width: 100% !important; }

/* ---------- Sticky header ---------- */
#header {
    position: sticky;
    top: 0;
    z-index: 20000;
    background: var(--bg, #fff);
    box-shadow: 0 1px 0 rgba(0,0,0,0.06), 0 2px 10px rgba(0,0,0,0.04);
    padding: 12px 0 14px;
    backdrop-filter: blur(8px);
}
body.dark #header { background: rgba(13,17,23,0.92); box-shadow: 0 1px 0 #21262d, 0 2px 12px rgba(0,0,0,0.45); }
#header #logo { max-width: 100%; height: auto; }
#header .theme-toggle-container { top: 50% !important; right: 0 !important; transform: translateY(-50%); }

/* ---------- Navigation bar ---------- */
#primary-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: nowrap;
    background: var(--surface-2, #f6f8fa);
    border: 1px solid var(--border, #d8dee4);
    border-radius: 12px;
    padding: 0 10px 0 0;
    margin-top: 10px;
}
#primary-nav .nav {
    float: none;
    overflow: visible;
    flex: 1 1 auto;
}
#primary-nav .nav li { position: relative; }
#primary-nav .nav li a {
    color: var(--text, #24292f);
    font-size: 14px;
    font-weight: 500;
    padding: 13px 16px;
    border-right: 1px solid var(--border, #d8dee4);
    transition: background .18s ease, color .18s ease;
}
#primary-nav .nav li a:hover,
#primary-nav .nav .current-menu-item > a,
#primary-nav .nav .current_page_item > a,
#primary-nav .nav .current-cat > a,
#primary-nav .nav li.first > a:hover {
    background: var(--surface-3, #eef1f4);
    color: var(--accent-strong, #026aa7);
}
/* clean dropdowns */
#primary-nav .nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 230px;
    background: var(--surface, #fff);
    border: 1px solid var(--border, #d8dee4);
    border-radius: 0 0 10px 10px;
    box-shadow: var(--shadow, 0 6px 18px rgba(0,0,0,0.12));
    z-index: 900;
    padding: 6px 0;
}
#primary-nav .nav ul ul { top: -7px; left: 100%; margin: 0; border-radius: 10px; }
#primary-nav .nav li:hover > ul,
#primary-nav .nav li:focus-within > ul,
#primary-nav .nav li.sfHover > ul,
#primary-nav .nav li.sfHover > ul ul { display: block; }
#primary-nav .nav li li a {
    border-right: none;
    border-bottom: 1px solid var(--border, #d8dee4);
    display: block;
    padding: 10px 16px;
}
#primary-nav .nav li li:last-child > a { border-bottom: none; }

/* search pill */
#search { float: none; margin-left: auto; padding: 8px 0 8px 10px; }
#search form { margin: 0; }
#search .field {
    border: 1px solid var(--border, #d8dee4);
    border-radius: 999px;
    background: var(--surface, #fff);
    color: var(--text, #24292f);
    font-size: 13px;
    padding: 8px 16px;
    width: 160px;
    transition: width .2s ease, box-shadow .2s ease;
}
#search .field:focus {
    width: 220px;
    outline: none;
    box-shadow: 0 0 0 3px rgba(2,116,190,0.25);
}
#search .submit { display: none; }

/* secondary nav row */
#secondary-nav {
    background: var(--accent, #0274be);
    border: none;
    border-radius: 10px;
    margin-top: 8px;
    overflow: visible;
}
#secondary-nav .nav {
    background: none;
    border-bottom: none;
    overflow: visible;
}
#secondary-nav .nav li a {
    font-size: 12.5px;
    padding: 7px 12px;
    color: #ffffff !important;
}
#secondary-nav .nav li a:hover,
#secondary-nav .nav li.sfHover a {
    background: rgba(0, 0, 0, 0.18) !important;
    color: #ffffff !important;
}
#secondary-nav .nav li ul {
    width: 200px;
    border-radius: 0 0 10px 10px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.14);
}
#secondary-nav .nav li ul li a {
    background: #ffffff;
    color: #24292f !important;
    border-bottom: 1px solid var(--border, #d8dee4);
    font-weight: normal;
}
#secondary-nav .nav li ul li a:hover {
    background: #eef1f4 !important;
    color: #026aa7 !important;
}

/* ---------- Hamburger (mobile) ---------- */
#nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 5px;
    flex-direction: column;
    width: 44px;
    height: 44px;
    margin: 6px 0 6px auto;
    background: transparent;
    border: 1px solid var(--border, #d8dee4);
    border-radius: 10px;
    cursor: pointer;
    padding: 10px;
}
#nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    border-radius: 2px;
    background: var(--text, #24292f);
    transition: transform .2s ease, opacity .2s ease;
}
body.nav-open #nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.nav-open #nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open #nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Content cards ---------- */
#content-loop .post,
.post,
.entry-content {
    background: var(--surface, #fff);
    border: 1px solid var(--border, #d8dee4);
    border-radius: 12px;
    padding: 1.6rem 1.8rem;
    margin-bottom: 26px;
    box-shadow: var(--shadow, 0 1px 2px rgba(0,0,0,0.05), 0 6px 18px rgba(0,0,0,0.05));
}
#content-loop .post img,
.post img {
    border-radius: 8px;
    height: auto;
}
.entry-title {
    font-size: clamp(22px, 2.6vw, 30px);
    line-height: 1.22;
    margin: 0 0 8px;
}
.entry-title a, .entry-title a:visited { color: var(--text, #24292f); }
.entry-title a:hover { color: var(--accent, #0274be); }
.entry-meta, .entry-meta a {
    color: var(--muted, #57606a);
    font-size: 13px;
    letter-spacing: .2px;
}
.entry-meta a:hover { color: var(--accent-strong, #026aa7); }

/* prose: no card chrome here - the wrapping .post is the card */
.entry-content {
    font-size: 17px;
    line-height: 1.7;
    background: transparent !important;
    border: none !important;
    border-radius: 0 !important;
    padding: 0 !important;
    box-shadow: none !important;
}
.entry-content h1, .entry-content h2, .entry-content h3, .entry-content h4 {
    margin: 1.4em 0 .5em;
    line-height: 1.3;
    color: var(--text, #24292f);
}
.entry-content h2 { font-size: 26px; padding-bottom: 6px; border-bottom: 1px solid var(--border, #d8dee4); }
.entry-content h3 { font-size: 21px; }
.entry-content blockquote {
    margin: 1.4em 0;
    padding: 6px 0 6px 18px;
    border-left: 4px solid var(--accent, #0274be);
    color: var(--muted, #57606a);
    background: var(--surface-2, #f6f8fa);
    border-radius: 0 8px 8px 0;
}
.entry-content pre {
    background: var(--surface-2, #f6f8fa);
    border: 1px solid var(--border, #d8dee4);
    border-radius: 10px;
    padding: 16px;
    overflow-x: auto;
}
.entry-content code {
    background: var(--surface-2, #f6f8fa);
    border: 1px solid var(--border, #d8dee4);
    border-radius: 5px;
    padding: 2px 6px;
    font-size: .9em;
}
.entry-content table { width: 100%; border-collapse: collapse; }
.entry-content th, .entry-content td { border: 1px solid var(--border, #d8dee4); padding: 8px 12px; }
.entry-content th { background: var(--surface-2, #f6f8fa); }

/* ---------- Sidebar widgets ---------- */
#sidebar .widget,
.widget {
    background: var(--surface, #fff);
    border: 1px solid var(--border, #d8dee4);
    border-radius: 12px;
    padding: 16px 18px;
    margin-bottom: 22px;
    box-shadow: var(--shadow, 0 1px 2px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.04));
}
#sidebar .widget-title {
    background: none;
    color: var(--text, #24292f);
    font-size: 14px;
    letter-spacing: .6px;
    text-transform: uppercase;
    border-bottom: 2px solid var(--accent, #0274be);
    padding-bottom: 8px;
    margin-bottom: 12px;
}
.widget ul { list-style: none; margin: 0; padding: 0; }
.widget ul li {
    padding: 7px 0;
    border-bottom: 1px dashed var(--border, #d8dee4);
    font-size: 14px;
    line-height: 1.5;
}
.widget ul li:last-child { border-bottom: none; }
.widget a { color: var(--accent, #0274be); }
.widget a:hover { color: var(--accent-strong, #026aa7); }

/* sticky ad unit */
.sidebar-ad {
    position: static;
    background: var(--surface, #fff);
    border: 1px solid var(--border, #d8dee4);
    border-radius: 12px;
    padding: 12px;
    margin-bottom: 22px;
}

/* ---------- Legacy shortcode widgets (jQuery UI 1.13) ---------- */
.ui-tabs { border: none; padding: 0; background: transparent; }
.ui-tabs .ui-tabs-nav {
    border: none;
    background: transparent;
    border-radius: 10px;
    overflow: hidden;
    padding: 0;
    border: 1px solid var(--border, #d8dee4);
    background: var(--surface-2, #f6f8fa);
    display: flex;
    flex-wrap: wrap;
}
.ui-tabs .ui-tabs-nav li { border: none; background: transparent; margin: 0; }
.ui-tabs .ui-tabs-nav li a {
    color: var(--muted, #57606a);
    padding: 10px 18px;
    font-weight: 500;
    border-right: 1px solid var(--border, #d8dee4);
}
.ui-tabs .ui-tabs-nav li.ui-tabs-active a,
.ui-tabs .ui-tabs-nav li.ui-tabs-active a:hover {
    background: var(--accent, #0274be);
    color: #fff;
}
.ui-tabs .ui-tabs-panel { padding: 16px 4px 4px; }
.ui-accordion { margin-bottom: 1.2em; }
.ui-accordion .ui-accordion-header {
    background: var(--surface-2, #f6f8fa);
    border: 1px solid var(--border, #d8dee4);
    border-radius: 8px;
    color: var(--text, #24292f);
    font-size: 15px;
    font-weight: 600;
    margin: 6px 0 0;
    padding: 11px 16px;
}
.ui-accordion .ui-accordion-header.ui-state-active {
    background: var(--accent, #0274be);
    color: #fff;
}
.ui-accordion .ui-accordion-content {
    border: 1px solid var(--border, #d8dee4);
    border-top: none;
    border-radius: 0 0 8px 8px;
    background: var(--surface, #fff);
    padding: 14px 16px;
}

/* ---------- Footer ---------- */
#footer {
    background: var(--surface-2, #f6f8fa);
    border-top: 1px solid var(--border, #d8dee4);
    padding: 30px 0;
    color: var(--muted, #57606a);
}
#footer a { color: var(--accent, #0274be); }
#footer .widget { background: transparent; border: none; box-shadow: none; padding: 0; }
#footer .widget-title {
    background: none;
    border-bottom: 2px solid var(--accent, #0274be);
    color: var(--text, #24292f);
}
.copyright { font-size: 13px; color: var(--muted, #57606a); padding: 14px 0 20px; }

/* ---------- Dark mode: components not covered by custom.css ---------- */
body.dark .entry-title a,
body.dark .entry-title a:visited { color: #e6edf3; }
body.dark .entry-title a:hover { color: #79c0ff; }
body.dark .entry-meta, body.dark .entry-meta a { color: #8b949e; }
body.dark .widget a { color: #58a6ff; }
body.dark .widget ul li { border-color: #30363d; }
body.dark #search .field {
    background: #161b22;
    border-color: #30363d;
    color: #c9d1d9;
}
body.dark #search .field:focus { box-shadow: 0 0 0 3px rgba(88,166,255,0.3); }
body.dark .sidebar-ad { background: #161b22; border-color: #30363d; }
body.dark #nav-toggle { border-color: #30363d; }
body.dark #nav-toggle span { background: #c9d1d9; }
body.dark .ui-tabs .ui-tabs-nav li a { color: #8b949e; border-color: #30363d; }
body.dark #primary-nav .nav ul {
    background: #161b22;
    border-color: #30363d;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.5);
}
body.dark #primary-nav .nav li li a {
    color: #c9d1d9 !important;
    border-color: #30363d;
}
body.dark #primary-nav .nav li li a:hover {
    background: #21262d !important;
    color: #79c0ff !important;
}
body.dark #secondary-nav .nav li ul li a {
    background: #161b22;
    color: #c9d1d9 !important;
    border-color: #30363d;
}
body.dark #secondary-nav .nav li ul li a:hover {
    background: #21262d !important;
    color: #79c0ff !important;
}
body.dark .ui-accordion .ui-accordion-header { color: #c9d1d9; }
body.dark .ui-accordion .ui-accordion-content { background: #161b22; }
body.dark .MathJax { color: #c9d1d9; }
body.dark .wpck-sidebar-follow .wpck-follow-btn,
body.dark .wpck-sidebar-cta {
    background: #161b22;
    border-color: #30363d;
}
body.dark .wpck-follow-label,
body.dark .wpck-sidebar-cta p { color: #c9d1d9; }

/* ---------- Accessibility & polish ---------- */
:focus-visible {
    outline: 3px solid var(--accent, #0274be);
    outline-offset: 2px;
}
#primary-nav .nav li a:focus-visible { outline-offset: -2px; }
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        transition: none !important;
        animation: none !important;
    }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    #container { grid-template-columns: minmax(0, 1fr) 280px; gap: 22px; }
}
@media (max-width: 900px) {
    #container { grid-template-columns: minmax(0, 1fr); }
    #primary-nav { flex-wrap: wrap; border-radius: 12px; padding: 0; }
    #nav-toggle { display: flex; }
    #primary-nav .nav,
    #primary-nav #search { display: none; width: 100%; }
    body.nav-open #primary-nav .nav,
    body.nav-open #primary-nav #search { display: block; }
    #primary-nav .nav { float: none; margin: 0; }
    #primary-nav .nav > li { float: none; width: 100%; }
    #primary-nav .nav li a {
        border-right: none;
        border-bottom: 1px solid var(--border, #d8dee4);
        display: block;
        padding: 12px 16px;
    }
    /* submenus become static, always visible inside the panel */
    #primary-nav .nav ul,
    #primary-nav .nav ul ul {
        display: block;
        position: static;
        width: 100%;
        margin: 0;
        padding: 0;
        border: none;
        border-radius: 0;
        box-shadow: none;
        background: var(--surface-3, #eef1f4);
    }
    #primary-nav .nav li li a { padding-left: 28px; }
    #search { margin-left: 0; padding: 8px 12px; }
    #search .field { width: 100%; }
    #search .field:focus { width: 100%; }
    #header #logo { max-width: 100%; height: auto; }
}
@media (max-width: 480px) {
    #wrapper, .inner-wrap { width: 96%; }
    #content-loop .post, .post, .entry-content { padding: 1.1rem 1.1rem; }
    #sidebar { width: 100%; }
    .theme-toggle-container { top: 8px !important; right: 0 !important; }
}