/* ============================================================
   CBAS public site — Federal Government portal style (2026-06)
   Arial/Tahoma system fonts, Nigerian green, flat official layout.
   No webfonts, no animation, no JavaScript dependencies.
   ============================================================ */

:root {
    --green: #008751;          /* Nigerian flag green */
    --green-dark: #00582F;     /* nav bar, headings */
    --green-deep: #013220;     /* footer */
    --green-pale: #E6F3ED;     /* tinted panels */
    --text: #1B1B1B;
    --text-soft: #444444;
    --grey-bg: #F4F4F4;
    --border: #CFCFCF;
    --border-soft: #E0E0E0;
    --white: #FFFFFF;
    --notice-bg: #FFF8E1;
    --notice-border: #B8860B;
    --link: #00582F;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    font-family: Arial, Tahoma, Helvetica, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--white);
}

img { max-width: 100%; height: auto; }

a { color: var(--link); }
a:hover { color: var(--green); }

.wrap {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- Official top bar ---------- */
.topbar {
    background: var(--green-deep);
    color: #DCEDE3;
    font-size: 13px;
    padding: 7px 0;
    border-bottom: 2px solid var(--notice-border);
}
.topbar .wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.topbar .topbar-right { margin-left: auto; color: #A8C4B2; }

/* ---------- Flag stripe ---------- */
.flag-stripe {
    height: 6px;
    background: linear-gradient(to right,
        var(--green) 0%, var(--green) 33.33%,
        var(--white) 33.33%, var(--white) 66.66%,
        var(--green) 66.66%, var(--green) 100%);
}

/* ---------- Masthead ---------- */
.masthead {
    background: var(--white);
    padding: 18px 0;
}
.masthead .wrap {
    display: flex;
    align-items: center;
    gap: 16px;
}
.masthead .brand {
    display: flex;
    align-items: center;
    gap: 16px;
    text-decoration: none;
    min-width: 0;
}
.masthead .brand > img { height: 64px; width: auto; flex: 0 0 auto; }
.masthead .site-title { line-height: 1.25; }
.masthead .site-title .title-main {
    display: block;
    font-size: 23px;
    font-weight: bold;
    color: var(--green-deep);
}
.masthead .site-title .title-sub {
    display: block;
    font-size: 14px;
    color: var(--text-soft);
}
.masthead .masthead-arms {
    height: 58px;
    width: auto;
    margin-left: auto;
}

/* ---------- Navigation bar ---------- */
.navbar {
    background: var(--green-dark);
    border-bottom: 3px solid var(--notice-border);
}
.navbar .nav-toggle { display: none; }
.navbar .nav-burger { display: none; }
.navbar .nav-links {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
}
.navbar a {
    display: flex;
    align-items: center;
    color: var(--white);
    text-decoration: none;
    font-size: 15px;
    font-weight: bold;
    padding: 13px 20px;
}
.navbar a:hover { background: var(--green); color: var(--white); }
.navbar a[aria-current="page"] {
    background: var(--green-deep);
    color: var(--white);
    box-shadow: inset 0 -4px 0 var(--notice-border);
}
.navbar .nav-login {
    margin-left: auto;
    background: var(--white);
    color: var(--green-dark);
}
.navbar .nav-login:hover {
    background: var(--green-pale);
    color: var(--green-deep);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    padding: 11px 24px;
    font-family: inherit;
    font-size: 15px;
    font-weight: bold;
    text-decoration: none;
    text-align: center;
    border: 2px solid var(--green-dark);
    cursor: pointer;
}
.btn-solid,
.btn-solid:visited { background: var(--green-dark); color: var(--white); }
.btn-solid:hover { background: var(--green); border-color: var(--green); color: var(--white); }
.btn-outline,
.btn-outline:visited { background: var(--white); color: var(--green-dark); }
.btn-outline:hover { background: var(--green-pale); color: var(--green-dark); }
.btn-meta {
    display: block;
    font-size: 12px;
    font-weight: normal;
    margin-top: 2px;
}
.btn-group { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }

/* ---------- Page banner / hero ---------- */
.page-banner {
    background: var(--grey-bg);
    border-bottom: 4px solid var(--green);
    padding: 44px 0;
}
.page-banner .banner-grid {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 40px;
    align-items: center;
}
.page-banner h1 {
    font-size: 34px;
    line-height: 1.25;
    color: var(--green-deep);
    margin-bottom: 14px;
}
.page-banner .lede {
    font-size: 17px;
    color: var(--text-soft);
    max-width: 60ch;
}
.crumb {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--green-dark);
    font-weight: bold;
    margin-bottom: 10px;
}

/* At-a-glance fact panel (banner right column) */
.fact-panel {
    background: var(--white);
    border: 1px solid var(--border);
    border-top: 5px solid var(--green);
}
.fact-panel .fact-head {
    background: var(--green-pale);
    border-bottom: 1px solid var(--border-soft);
    padding: 10px 16px;
    font-weight: bold;
    font-size: 14px;
    color: var(--green-deep);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.fact-panel dl { padding: 8px 16px 14px; }
.fact-panel dl div {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-soft);
    font-size: 14px;
}
.fact-panel dl div:last-child { border-bottom: none; }
.fact-panel dt { color: var(--text-soft); }
.fact-panel dd { font-weight: bold; text-align: right; }

/* ---------- Sections ---------- */
.section { padding: 44px 0; }
.section-grey { background: var(--grey-bg); border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); }
.section h2 {
    font-size: 26px;
    color: var(--green-deep);
    padding-bottom: 10px;
    border-bottom: 3px solid var(--green);
    display: inline-block;
    margin-bottom: 24px;
}
.section .section-intro {
    max-width: 70ch;
    color: var(--text-soft);
    margin: -10px 0 26px;
}

/* ---------- Numbered steps ---------- */
.steps { max-width: 800px; }
.step {
    display: flex;
    gap: 18px;
    padding: 18px 0;
    border-bottom: 1px solid var(--border-soft);
}
.step:last-child { border-bottom: none; }
.step .step-no {
    flex: 0 0 44px;
    height: 44px;
    background: var(--green-dark);
    color: var(--white);
    font-size: 19px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
}
.step h3 { font-size: 17px; color: var(--green-deep); margin-bottom: 4px; }
.step p { font-size: 15px; color: var(--text-soft); }

/* ---------- Card grid ---------- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}
.card {
    background: var(--white);
    border: 1px solid var(--border);
    border-top: 5px solid var(--green);
    padding: 22px;
}
.card h3 { font-size: 17px; color: var(--green-deep); margin-bottom: 8px; }
.card p { font-size: 15px; color: var(--text-soft); margin-bottom: 10px; }
.card a { font-size: 14px; font-weight: bold; }

/* ---------- Notice box ---------- */
.notice {
    background: var(--notice-bg);
    border: 1px solid var(--notice-border);
    border-left: 6px solid var(--notice-border);
    padding: 14px 18px;
    margin-top: 24px;
    font-size: 15px;
}
.notice strong { display: block; margin-bottom: 4px; }

/* ---------- Data table ---------- */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
    background: var(--white);
}
.data-table th,
.data-table td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    text-align: left;
    vertical-align: top;
}
.data-table th {
    background: var(--green-pale);
    color: var(--green-deep);
    width: 220px;
}

/* ---------- Prose ---------- */
.prose { max-width: 760px; }
.prose h2 { margin-top: 30px; }
.prose p { margin-bottom: 14px; }
.prose ul { margin: 0 0 14px 22px; }
.prose li { margin-bottom: 8px; }

/* ---------- Call-to-action band ---------- */
.cta-band {
    background: var(--green-deep);
    color: var(--white);
    padding: 40px 0;
    text-align: center;
}
.cta-band h2 { font-size: 26px; margin-bottom: 8px; }
.cta-band p { color: #CFE3D6; max-width: 60ch; margin: 0 auto; }
.cta-band .btn-group { justify-content: center; }
.cta-band .btn-solid,
.cta-band .btn-solid:visited { background: var(--white); color: var(--green-deep); border-color: var(--white); }
.cta-band .btn-solid:hover { background: var(--green-pale); }
.cta-band .btn-outline,
.cta-band .btn-outline:visited { background: transparent; color: var(--white); border-color: var(--white); }
.cta-band .btn-outline:hover { background: rgba(255, 255, 255, 0.12); color: var(--white); }

/* ---------- Footer ---------- */
.partners-strip {
    background: var(--white);
    border-top: 1px solid var(--border-soft);
    padding: 20px 0;
}
.partners-strip .wrap {
    display: flex;
    align-items: center;
    gap: 36px;
    flex-wrap: wrap;
    justify-content: center;
}
.partners-strip img { height: 48px; width: auto; }
.partners-strip .partners-label {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-soft);
}

.footer {
    background: var(--green-deep);
    color: #D5E4DB;
    padding: 36px 0 0;
    font-size: 14px;
}
.footer .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 32px;
    padding-bottom: 28px;
}
.footer h4 {
    color: var(--white);
    font-size: 15px;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.footer p { max-width: 50ch; }
.footer ul { list-style: none; }
.footer li { margin-bottom: 7px; }
.footer a { color: #D5E4DB; }
.footer a:hover { color: var(--white); }
.footer-base {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding: 14px 0;
}
.footer-base .wrap {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: #A8C4B2;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
    .page-banner .banner-grid { grid-template-columns: 1fr; }
    .page-banner h1 { font-size: 28px; }
    .footer .footer-grid { grid-template-columns: 1fr; }
    .data-table th { width: 150px; }

    /* Collapse nav into a hamburger menu */
    .navbar .nav-burger {
        display: flex;
        align-items: center;
        gap: 10px;
        color: var(--white);
        font-size: 15px;
        font-weight: bold;
        padding: 13px 0;
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }
    .navbar .burger-bars {
        display: flex;
        flex-direction: column;
        gap: 4px;
        width: 22px;
    }
    .navbar .burger-bars span {
        height: 3px;
        background: var(--white);
    }
    .navbar .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        border-top: 1px solid rgba(255, 255, 255, 0.2);
    }
    .navbar .nav-toggle:checked ~ .nav-links { display: flex; }
    .navbar a {
        padding: 13px 4px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    }
    .navbar a[aria-current="page"] { box-shadow: inset 4px 0 0 var(--notice-border); padding-left: 12px; }
    .navbar .nav-login {
        margin-left: 0;
        margin: 10px 0 14px;
        justify-content: center;
        border-bottom: none;
    }
}

@media (max-width: 560px) {
    .topbar { font-size: 12px; text-align: center; }
    .topbar .wrap { justify-content: center; }
    .topbar .topbar-right { display: none; }
    .masthead { padding: 14px 0; }
    .masthead .brand > img { height: 46px; }
    .masthead .site-title { flex: 1; }
    .masthead .site-title .title-main { font-size: 17px; }
    .masthead .site-title .title-sub { font-size: 12px; }
    .masthead .masthead-arms { display: none; }
    .page-banner { padding: 30px 0; }
    .page-banner h1 { font-size: 24px; }
    .section h2 { font-size: 22px; }
    .partners-strip img { height: 38px; }
    .partners-strip .wrap { gap: 20px; }
}