/*
Theme Name: Mayowa Learning Foundation
Theme URI: https://naijabiology.site
Author: Mayowa Learning Foundation
Description: A myschool.ng-style educational portal for Nigerian secondary school science students. WAEC CBT practice simulator, lessons, past questions and news for Biology, Physics, Chemistry and Agricultural Science.
Version: 2.0.0
Requires at least: 5.9
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: mlf
Tags: education, portal, school, e-learning, cbt
*/

/* ============ 1. Base ============ */
:root{
	--mlf-blue:#0b6e99;
	--mlf-blue-dark:#0a5a7d;
	--mlf-teal:#0e8a6d;
	--mlf-green:#16a34a;
	--mlf-navy:#0f2436;
	--mlf-ink:#1c2b36;
	--mlf-soft:#5b6b78;
	--mlf-border:#e4ebf0;
	--mlf-bg:#eef3f6;
	--mlf-surface:#fff;
	--mlf-gold:#f59e0b;
	--mlf-red:#dc2626;
	--mlf-sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
	--mlf-radius:10px;
	--mlf-shadow:0 1px 2px rgba(16,42,60,.06),0 8px 24px rgba(16,42,60,.07);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--mlf-sans);font-size:16px;line-height:1.65;color:var(--mlf-ink);background:var(--mlf-bg)}
img{max-width:100%;height:auto;display:block}
a{color:var(--mlf-blue);text-decoration:none}
a:hover{color:var(--mlf-blue-dark)}
h1,h2,h3,h4,h5{color:var(--mlf-navy);line-height:1.2;margin:0 0 .5em;font-weight:800}
h1{font-size:clamp(1.7rem,3vw,2.4rem)}
h2{font-size:clamp(1.3rem,2.2vw,1.75rem)}
h3{font-size:1.15rem}
p{margin:0 0 1em}
ul,ol{padding-left:1.3em;margin:0 0 1.2em}
blockquote{margin:1.3em 0;padding:.9em 1.2em;border-left:4px solid var(--mlf-green);background:#e8f7ee;border-radius:0 8px 8px 0}
.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px)}

/* ============ 2. Layout ============ */
.mlf-container{max-width:1200px;margin:0 auto;padding:0 20px}
.mlf-row{display:flex;flex-wrap:wrap;gap:28px}
.mlf-main{flex:1 1 720px;min-width:0}
.mlf-sidebar{flex:0 1 320px;min-width:0}
.mlf-section{padding:40px 0}
.mlf-grid{display:grid;gap:18px}
.mlf-grid--4{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.mlf-grid--3{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}

/* ============ 3. Top bar ============ */
.mlf-topbar{background:var(--mlf-navy);color:#cfe0ec;font-size:.82rem}
.mlf-topbar .mlf-container{display:flex;justify-content:space-between;align-items:center;padding-top:7px;padding-bottom:7px}
.mlf-topbar a{color:#cfe0ec}
.mlf-topbar a:hover{color:#fff}

/* ============ 4. Header ============ */
.mlf-header{background:var(--mlf-blue);position:sticky;top:0;z-index:60;box-shadow:0 2px 12px rgba(0,0,0,.12)}
.mlf-header__inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px 20px}
.mlf-brand{display:flex;align-items:center;gap:12px}
.mlf-brand__logo{width:46px;height:46px;flex:0 0 auto;background:#fff;color:var(--mlf-blue);border-radius:10px;display:grid;place-items:center}
.mlf-brand__logo svg{width:28px;height:28px}
.mlf-brand__name{color:#fff;font-weight:800;font-size:1.18rem;margin:0;line-height:1.1}
.mlf-brand__tag{color:#b9d8e9;font-size:.74rem;margin:0}
.mlf-nav ul{list-style:none;display:flex;gap:2px;margin:0;padding:0;align-items:center;flex-wrap:wrap}
.mlf-nav a{display:block;padding:9px 13px;border-radius:8px;color:#eaf5fb;font-weight:600;font-size:.92rem}
.mlf-nav a:hover{background:rgba(255,255,255,.14);color:#fff}
.mlf-nav .current-menu-item>a,.mlf-nav .current_page_item>a{background:#fff;color:var(--mlf-blue)}
.mlf-nav-toggle{display:none;background:#fff;color:var(--mlf-blue);border:0;border-radius:8px;padding:10px 14px;font-size:1.2rem;line-height:1;cursor:pointer}

/* ============ 5. Breaking news ticker ============ */
.mlf-ticker{background:#fff;border-bottom:1px solid var(--mlf-border)}
.mlf-ticker .mlf-container{display:flex;align-items:center;gap:12px;padding-top:8px;padding-bottom:8px}
.mlf-ticker__label{background:var(--mlf-red);color:#fff;font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.04em;padding:4px 10px;border-radius:4px;flex:0 0 auto}
.mlf-ticker__viewport{overflow:hidden;flex:1;white-space:nowrap}
.mlf-ticker__track{display:inline-block;animation:mlf-ticker 28s linear infinite}
.mlf-ticker a{color:var(--mlf-ink);font-size:.9rem;font-weight:500}
.mlf-ticker a:hover{color:var(--mlf-blue)}
@keyframes mlf-ticker{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* ============ 6. Hero / carousel ============ */
.mlf-hero{background:linear-gradient(120deg,#0b6e99 0%,#0e8a6d 100%);color:#fff;position:relative;overflow:hidden}
.mlf-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 15%,rgba(255,255,255,.12),transparent 45%)}
.mlf-hero .mlf-container{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;padding-top:44px;padding-bottom:44px}
.mlf-hero h1{color:#fff;font-size:clamp(1.8rem,3.4vw,2.7rem);margin-bottom:.35em}
.mlf-hero p{color:#d5edf6;font-size:1.06rem;max-width:560px}
.mlf-hero__btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.mlf-btn{display:inline-block;padding:12px 22px;border-radius:8px;font-weight:700;font-size:.98rem;border:2px solid transparent;cursor:pointer}
.mlf-btn--gold{background:var(--mlf-gold);color:#3d2a00}
.mlf-btn--gold:hover{background:#d98a00;color:#3d2a00}
.mlf-btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.mlf-btn--ghost:hover{background:rgba(255,255,255,.14);color:#fff}
.mlf-btn--blue{background:var(--mlf-blue);color:#fff}
.mlf-btn--small{padding:8px 16px;font-size:.86rem}
.mlf-hero__card{background:rgba(255,255,255,.96);color:var(--mlf-ink);border-radius:14px;padding:22px;box-shadow:0 16px 40px rgba(0,0,0,.18)}
.mlf-hero__card h3{margin-bottom:8px}
.mlf-hero__card p{color:var(--mlf-soft);font-size:.92rem}

/* ============ 7. Section headings ============ */
.mlf-sechead{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.mlf-sechead h2{margin:0}
.mlf-sechead__sub{color:var(--mlf-soft);font-size:.92rem;margin-top:2px}
.mlf-sechead__link{font-weight:700;font-size:.92rem}

/* ============ 8. Cards ============ */
.mlf-card{background:var(--mlf-surface);border:1px solid var(--mlf-border);border-radius:var(--mlf-radius);overflow:hidden;transition:transform .16s ease,box-shadow .16s ease;box-shadow:0 1px 2px rgba(16,42,60,.05)}
.mlf-card:hover{transform:translateY(-3px);box-shadow:var(--mlf-shadow)}
.mlf-card__body{padding:18px;display:flex;flex-direction:column;flex:1}
.mlf-card__meta{font-size:.78rem;color:var(--mlf-soft);margin-bottom:8px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.mlf-card__title{font-size:1.05rem;margin-bottom:.35em}
.mlf-card__title a{color:var(--mlf-navy)}
.mlf-card__excerpt{color:var(--mlf-soft);font-size:.9rem;flex:1}
.mlf-card__more{font-weight:700;font-size:.88rem;margin-top:10px}
.mlf-badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.02em}
.mlf-badge--subject{color:#fff}

/* CBT simulator cards */
.mlf-cbt-card{position:relative;color:var(--mlf-navy);padding:22px;border-radius:var(--mlf-radius);background:#fff;border:1px solid var(--mlf-border);box-shadow:0 1px 2px rgba(16,42,60,.05);display:flex;flex-direction:column;transition:transform .16s ease,box-shadow .16s ease}
.mlf-cbt-card:hover{transform:translateY(-3px);box-shadow:var(--mlf-shadow)}
.mlf-cbt-card__icon{width:54px;height:54px;border-radius:12px;display:grid;place-items:center;color:#fff;font-weight:800;font-size:.86rem;margin-bottom:14px;letter-spacing:.02em}
.mlf-cbt-card h3{margin-bottom:.25em}
.mlf-cbt-card p{color:var(--mlf-soft);font-size:.88rem;flex:1;margin-bottom:14px}
.mlf-cbt-card__cta{font-weight:700;font-size:.9rem}

/* ============ 9. Subject selector chips ============ */
.mlf-chips{display:flex;flex-wrap:wrap;gap:10px}
.mlf-chip{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;background:#fff;border:1px solid var(--mlf-border);font-weight:600;font-size:.92rem;color:var(--mlf-ink)}
.mlf-chip:hover{border-color:var(--mlf-blue);color:var(--mlf-blue)}
.mlf-chip .dot{width:10px;height:10px;border-radius:50%}

/* ============ 10. News feed ============ */
.mlf-news{list-style:none;padding:0;margin:0}
.mlf-news li{border-bottom:1px solid var(--mlf-border);padding:12px 0}
.mlf-news li:last-child{border-bottom:0}
.mlf-news a{color:var(--mlf-navy);font-weight:600}
.mlf-news a:hover{color:var(--mlf-blue)}
.mlf-news__meta{display:flex;gap:10px;font-size:.76rem;color:var(--mlf-soft);margin-top:3px}
.mlf-tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px}
.mlf-tab{padding:7px 14px;border-radius:999px;border:1px solid var(--mlf-border);background:#fff;font-weight:600;font-size:.86rem;color:var(--mlf-soft);cursor:pointer}
.mlf-tab.is-active{background:var(--mlf-blue);color:#fff;border-color:var(--mlf-blue)}

/* ============ 11. Article / lesson ============ */
.mlf-article{background:#fff;border:1px solid var(--mlf-border);border-radius:var(--mlf-radius);padding:clamp(20px,4vw,42px);box-shadow:var(--mlf-shadow)}
.mlf-article__header{border-bottom:2px solid var(--mlf-border);padding-bottom:16px;margin-bottom:22px}
.mlf-article__meta{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:12px;font-size:.84rem;color:var(--mlf-soft)}
.mlf-article__body h2{border-bottom:2px solid #e8f7ee;padding-bottom:.3em;margin-top:1.5em}
.mlf-article__body h3{color:var(--mlf-blue-dark);margin-top:1.4em}
.mlf-article__body ul li::marker{color:var(--mlf-green)}
.mlf-keypoint{background:#e8f7ee;border:1px solid #c4ecd4;border-radius:8px;padding:14px 18px;margin:1.3em 0}
.mlf-keypoint strong:first-child{color:#11603a}
.mlf-tablewrap{overflow-x:auto;margin:1.3em 0}
.mlf-tablewrap table{border-collapse:collapse;width:100%;font-size:.93rem}
.mlf-tablewrap th,.mlf-tablewrap td{border:1px solid var(--mlf-border);padding:9px 12px;text-align:left}
.mlf-tablewrap th{background:var(--mlf-blue);color:#fff}
.mlf-tablewrap tr:nth-child(even) td{background:#f6f9fb}
.mlf-figure{margin:1.5em 0;text-align:center;background:#fafbfc;border:1px solid var(--mlf-border);border-radius:8px;padding:16px}
.mlf-figure figcaption{font-size:.82rem;color:var(--mlf-soft);margin-top:8px}

/* past question blocks */
.mlf-question{background:#fff;border:1px solid var(--mlf-border);border-left:5px solid var(--mlf-blue);border-radius:8px;padding:16px 18px;margin:1.3em 0}
.mlf-question__meta{font-size:.76rem;color:var(--mlf-soft);font-weight:700;text-transform:uppercase;letter-spacing:.03em;margin-bottom:8px}
.mlf-question__q{font-weight:600;margin-bottom:12px}
.mlf-question__options{list-style:none;padding:0;margin:0 0 12px}
.mlf-question__options li{padding:8px 12px;border:1px solid var(--mlf-border);border-radius:6px;margin-bottom:6px}
.mlf-question__options .is-answer{background:#e8f7ee;border-color:#86efac;font-weight:700}
.mlf-answer{display:none;margin-top:10px;padding:12px 16px;background:#e8f7ee;border-radius:8px;font-size:.92rem}
.mlf-answer.is-open{display:block}
.mlf-reveal{background:var(--mlf-blue);color:#fff;border:0;border-radius:6px;padding:9px 16px;cursor:pointer;font-weight:700;font-size:.88rem}
.mlf-reveal:hover{background:var(--mlf-blue-dark)}

/* ============ 12. CBT simulator ============ */
.mlf-cbt{background:#fff;border:1px solid var(--mlf-border);border-radius:var(--mlf-radius);box-shadow:var(--mlf-shadow);overflow:hidden}
.mlf-cbt__bar{background:var(--mlf-navy);color:#fff;padding:14px 20px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.mlf-cbt__timer{font-weight:800;font-size:1.1rem;font-variant-numeric:tabular-nums}
.mlf-cbt__timer.is-low{color:var(--mlf-gold)}
.mlf-cbt__body{padding:26px 22px}
.mlf-cbt__qnum{color:var(--mlf-soft);font-size:.85rem;margin-bottom:10px}
.mlf-cbt__q{font-size:1.08rem;font-weight:600;margin-bottom:18px}
.mlf-cbt__options{display:flex;flex-direction:column;gap:10px;list-style:none;padding:0;margin:0}
.mlf-cbt__opt{display:flex;gap:12px;align-items:flex-start;padding:13px 16px;border:2px solid var(--mlf-border);border-radius:10px;cursor:pointer;font-weight:500;transition:border-color .12s,background .12s}
.mlf-cbt__opt:hover{border-color:var(--mlf-blue);background:#f2f9fd}
.mlf-cbt__opt.is-selected{border-color:var(--mlf-blue);background:#eaf4fb}
.mlf-cbt__opt .key{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--mlf-bg);display:grid;place-items:center;font-size:.8rem;font-weight:700;color:var(--mlf-soft)}
.mlf-cbt__opt.is-selected .key{background:var(--mlf-blue);color:#fff}
.mlf-cbt__nav{display:flex;justify-content:space-between;gap:12px;margin-top:22px;flex-wrap:wrap}
.mlf-cbt__dots{display:flex;flex-wrap:wrap;gap:6px;margin-top:20px}
.mlf-cbt__dot{width:32px;height:32px;border-radius:8px;border:1px solid var(--mlf-border);background:#fff;font-size:.8rem;font-weight:700;color:var(--mlf-soft);cursor:pointer}
.mlf-cbt__dot.is-current{border-color:var(--mlf-blue);color:var(--mlf-blue);background:#eaf4fb}
.mlf-cbt__dot.is-answered{background:var(--mlf-green);border-color:var(--mlf-green);color:#fff}
.mlf-cbt__setup{max-width:560px;margin:0 auto;text-align:left}
.mlf-cbt__setup select,.mlf-cbt__setup label{display:block;width:100%;margin-bottom:6px;font-weight:600}
.mlf-cbt__setup select{padding:12px 14px;border:1px solid var(--mlf-border);border-radius:8px;font-size:1rem;font-family:inherit;background:#fff;margin-bottom:18px}
.mlf-cbt__result{text-align:center;padding:10px 0}
.mlf-cbt__score{font-size:3rem;font-weight:800;color:var(--mlf-blue);line-height:1}
.mlf-cbt__grade{margin:10px 0;font-weight:700}

/* ============ 13. Widgets / sidebar ============ */
.mlf-widget{background:#fff;border:1px solid var(--mlf-border);border-radius:var(--mlf-radius);padding:20px;margin-bottom:20px}
.mlf-widget__title{font-size:.95rem;font-weight:800;text-transform:uppercase;letter-spacing:.04em;color:var(--mlf-navy);border-bottom:2px solid var(--mlf-border);padding-bottom:8px;margin-bottom:14px}
.mlf-widget ul{list-style:none;padding:0;margin:0}
.mlf-widget ul li{border-bottom:1px solid var(--mlf-border)}
.mlf-widget ul li:last-child{border-bottom:0}
.mlf-widget ul a{display:block;padding:8px 0;color:var(--mlf-ink)}
.mlf-widget ul a:hover{color:var(--mlf-blue)}
.mlf-ad{background:linear-gradient(135deg,#eaf4fb,#e6f5ef);border:1px solid #cfe3f0;border-radius:var(--mlf-radius);padding:18px;margin-bottom:20px}
.mlf-ad__tag{display:inline-block;font-size:.68rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--mlf-blue);background:#d7ecf8;padding:2px 9px;border-radius:999px;margin-bottom:8px}
.mlf-ad__title{font-size:1.02rem;margin-bottom:6px}
.mlf-ad__text{font-size:.88rem;color:var(--mlf-soft);margin-bottom:12px}
.mlf-ad__btn{display:inline-block;background:var(--mlf-blue);color:#fff;font-weight:700;font-size:.88rem;padding:9px 16px;border-radius:8px}

/* ============ 14. Pagination / search ============ */
.mlf-pagination{margin-top:28px}
.mlf-pagination .nav-links{display:flex;gap:8px;flex-wrap:wrap}
.mlf-pagination a,.mlf-pagination span{padding:8px 14px;border:1px solid var(--mlf-border);border-radius:8px;background:#fff;color:var(--mlf-ink)}
.mlf-pagination .current{background:var(--mlf-blue);color:#fff;border-color:var(--mlf-blue)}
.mlf-search-form{display:flex;gap:8px;margin-bottom:20px}
.mlf-search-form input[type=search]{flex:1;padding:11px 14px;border:1px solid var(--mlf-border);border-radius:8px;font-size:1rem;font-family:inherit}
.mlf-search-form button{background:var(--mlf-blue);color:#fff;border:0;border-radius:8px;padding:0 20px;font-weight:700;cursor:pointer}

/* ============ 15. Breadcrumbs ============ */
.mlf-breadcrumbs{padding:16px 0 0;font-size:.86rem}
.mlf-breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:4px;padding:0;margin:0}
.mlf-breadcrumbs li::after{content:"›";margin:0 8px;color:var(--mlf-soft)}
.mlf-breadcrumbs li:last-child::after{content:""}
.mlf-breadcrumbs a{color:var(--mlf-soft)}
.mlf-breadcrumbs li:last-child{color:var(--mlf-ink);font-weight:600}

/* ============ 16. Footer ============ */
.mlf-footer{background:var(--mlf-navy);color:#b9cbd8;margin-top:40px;font-size:.92rem}
.mlf-footer__top{padding:42px 0 26px;display:grid;gap:30px;grid-template-columns:2fr 1fr 1fr 1fr}
.mlf-footer h4{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:14px}
.mlf-footer ul{list-style:none;padding:0;margin:0}
.mlf-footer ul a{color:#b9cbd8;display:block;padding:4px 0}
.mlf-footer ul a:hover{color:#fff}
.mlf-footer__brand{color:#fff;font-weight:800;font-size:1.12rem;margin:0 0 8px}
.mlf-footer__bottom{border-top:1px solid rgba(255,255,255,.12);padding:16px 0;font-size:.8rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.mlf-footer__bottom a{color:#9fd4b8}

/* ============ 17. Responsive ============ */
@media(max-width:940px){
	.mlf-hero .mlf-container{grid-template-columns:1fr}
	.mlf-footer__top{grid-template-columns:1fr 1fr}
	.mlf-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--mlf-blue-dark);padding:10px 20px 18px}
	.mlf-nav.is-open{display:block}
	.mlf-nav ul{flex-direction:column}
	.mlf-nav-toggle{display:block}
}
@media(max-width:560px){
	.mlf-footer__top{grid-template-columns:1fr}
	.mlf-topbar .mlf-topbar__right{display:none}
	.mlf-row{gap:18px}
	.mlf-sidebar{flex-basis:100%}
}