/* NSP theme base. Tokens follow the "বটতলা থেকে AI" prototype; text colours are the
   contrast-safe variants from audit 03 (vermilion #A8341F on bone, #E0664C on ink). */
:root {
	--ink: #0B0A08;
	--ink-2: #15130F;
	--bone: #E9E3D3;
	--bone-2: #DDD5C1;
	--paper: #F6F2E7;
	--fg: #17140F;
	--muted: #655E50;
	--line: #CFC6B1;
	--line-dark: rgba(247, 243, 232, .16);
	--white: #F7F3E8;
	--vermilion: #A8341F;
	--vermilion-on-ink: #E0664C;
	--spark: #F2C75C;
	--serif: "Tiro Bangla", "Instrument Serif", serif;
	--sans: "Hind Siliguri", "Inter Tight", system-ui, sans-serif;
	--script: "Galada", "Tiro Bangla", cursive;
	--latin: "Inter Tight", "Hind Siliguri", system-ui, sans-serif;
	--italic: "Instrument Serif", "Tiro Bangla", serif;
	--radius: 12px;
	--wrap: 720px;
	--wrap-wide: 1200px;
	--gutter: clamp(16px, 4vw, 32px);
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bone); color: var(--fg); font: 400 17px/1.75 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, video, iframe { max-width: 100%; height: auto; }
a { color: var(--vermilion); text-underline-offset: 3px; }
a:hover { color: var(--fg); }
:focus-visible { outline: 3px solid var(--vermilion); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 400; line-height: 1.2; text-wrap: balance; color: inherit; }
.nsp-skip { position: absolute; left: -9999px; top: 8px; z-index: 100; background: var(--ink); color: var(--white); padding: 10px 14px; border-radius: 8px; }
.nsp-skip:focus { left: 8px; }
.nsp-nowrap { white-space: nowrap; }

/* layout */
.nsp-wrap { max-width: calc(var(--wrap) + 2 * var(--gutter)); margin-inline: auto; padding-inline: var(--gutter); }
.nsp-wrap-wide { max-width: calc(var(--wrap-wide) + 2 * var(--gutter)); margin-inline: auto; padding-inline: var(--gutter); }
.nsp-main { min-height: 60vh; }
.nsp-eyebrow { margin: 0 0 8px; font: 600 13px/1.3 var(--sans); letter-spacing: .03em; color: var(--vermilion); }
.nsp-eyebrow a { color: inherit; text-decoration: none; }
.nsp-h1 { font-size: clamp(34px, 5vw, 56px); margin: 0 0 14px; }
.nsp-meta { margin: 0; font-size: 14px; color: var(--muted); }
.nsp-row { display: flex; flex-wrap: wrap; gap: 10px; }

/* buttons */
.nsp-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 10px 18px; border-radius: 999px; font: 600 15px/1.2 var(--sans); text-decoration: none; border: 1px solid transparent; transition: background-color .15s, color .15s, border-color .15s; }
.nsp-btn-light { background: var(--white); color: var(--ink); }
.nsp-btn-light:hover { background: var(--spark); color: var(--ink); }
.nsp-btn-ink { background: var(--ink); color: var(--bone); }
.nsp-btn-ink:hover { background: var(--vermilion); color: var(--white); }
.nsp-btn-line { border-color: currentColor; color: inherit; }

/* header */
.nsp-header { position: sticky; top: 0; z-index: 50; background: var(--ink); color: var(--white); padding-top: env(safe-area-inset-top, 0px); }
.nsp-header-in { max-width: calc(var(--wrap-wide) + 2 * var(--gutter)); margin-inline: auto; padding: 10px var(--gutter); display: flex; align-items: center; gap: 24px; min-height: 64px; }
.nsp-brand { display: grid; line-height: 1.05; color: var(--white); text-decoration: none; flex: none; }
.nsp-brand-mark { font: 800 19px/1.1 var(--latin); letter-spacing: -.02em; }
.nsp-brand-mark b, .nsp-footer-mark b { color: var(--vermilion-on-ink); font-weight: 800; }
.nsp-brand-ed { font: 400 12px/1.3 var(--sans); color: rgba(247, 243, 232, .6); }
.nsp-nav { flex: 1; min-width: 0; }
.nsp-nav-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 20px; }
.nsp-nav-list a { color: rgba(247, 243, 232, .82); text-decoration: none; font: 500 15px/1.4 var(--sans); padding: 6px 0; display: inline-block; }
.nsp-nav-list a:hover, .nsp-nav-list .current-menu-item > a { color: var(--white); box-shadow: inset 0 -2px 0 var(--spark); }
.nsp-header-actions { display: flex; align-items: center; gap: 14px; flex: none; }
.nsp-link-account { color: var(--white); text-decoration: none; font: 500 15px/1 var(--sans); }
.nsp-link-account:hover { color: var(--spark); }
.nsp-mobile { display: none; margin-left: auto; }
.nsp-mobile summary { list-style: none; cursor: pointer; width: 44px; height: 44px; display: grid; place-content: center; gap: 5px; border-radius: 10px; }
.nsp-mobile summary::-webkit-details-marker { display: none; }
.nsp-mobile summary span { display: block; width: 22px; height: 2px; background: var(--white); border-radius: 2px; transition: transform .2s, opacity .2s; }
.nsp-mobile[open] summary span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nsp-mobile[open] summary span:nth-child(2) { opacity: 0; }
.nsp-mobile[open] summary span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nsp-mobile-panel { position: absolute; left: 0; right: 0; top: 100%; background: var(--ink); border-top: 1px solid var(--line-dark); padding: 12px var(--gutter) 22px; max-height: calc(100vh - 64px); overflow: auto; }
.nsp-mobile-list { list-style: none; margin: 0; padding: 0; }
.nsp-mobile-list a { display: block; padding: 13px 0; border-bottom: 1px solid var(--line-dark); color: var(--white); text-decoration: none; font: 500 18px/1.3 var(--sans); }
.nsp-mobile-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 16px; }

/* page heads, prose */
.nsp-page-head { padding-block: 56px 24px; }
.nsp-page { padding-block: 48px 72px; }
.nsp-page-wide { padding-block: 0; }
.nsp-prose { font-size: 18px; line-height: 1.85; }
.nsp-prose > * { margin-block: 0 1.1em; }
.nsp-prose h2 { font-size: clamp(26px, 3.2vw, 34px); margin-top: 1.8em; }
.nsp-prose h3 { font-size: 22px; margin-top: 1.5em; }
.nsp-prose img { border-radius: 8px; }
.nsp-prose blockquote { margin-inline: 0; padding: 4px 0 4px 18px; border-left: 3px solid var(--vermilion); font-family: var(--serif); font-size: 21px; }
.nsp-prose table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; }
.nsp-prose th, .nsp-prose td { border-bottom: 1px solid var(--line); padding: 8px 10px; text-align: left; }
.nsp-prose code { background: var(--bone-2); padding: 1px 5px; border-radius: 4px; font-size: .9em; }

/* blog list and article */
.nsp-post-list { display: grid; gap: 28px; padding-bottom: 72px; }
.nsp-post-row { display: grid; grid-template-columns: minmax(0, 220px) minmax(0, 1fr); gap: 22px; align-items: start; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.nsp-post-thumb img { border-radius: 8px; aspect-ratio: 16 / 10; object-fit: cover; width: 100%; }
.nsp-post-title { margin: 0 0 6px; font-size: 24px; }
.nsp-post-title a { color: inherit; text-decoration: none; }
.nsp-post-title a:hover { color: var(--vermilion); }
.nsp-article-head { padding-block: 56px 20px; }
.nsp-article-cover { margin-block: 0 36px; }
.nsp-article-cover img { width: 100%; border-radius: var(--radius); }
.nsp-course-cta { margin-block: 48px 72px; padding-block: 26px; border-top: 2px solid var(--fg); }
.nsp-cta-title { font: 400 26px/1.25 var(--serif); margin: 0 0 16px; }
.nav-links { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.page-numbers { padding: 6px 12px; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; color: var(--fg); }
.page-numbers.current { background: var(--ink); color: var(--bone); border-color: var(--ink); }

/* 404 */
.nsp-404 { background: var(--ink); color: var(--white); padding-block: 96px; }
.nsp-404 .nsp-eyebrow { color: var(--spark); }
.nsp-404 p { color: rgba(247, 243, 232, .78); }
.nsp-404 .search-form { margin-top: 26px; display: flex; gap: 8px; }
.nsp-404 .search-field { flex: 1; min-height: 44px; border-radius: 999px; border: 1px solid var(--line-dark); background: var(--ink-2); color: var(--white); padding: 0 16px; font: inherit; }
.nsp-404 .search-submit { min-height: 44px; border-radius: 999px; border: 0; padding: 0 18px; background: var(--white); color: var(--ink); font: 600 15px var(--sans); cursor: pointer; }

/* footer */
.nsp-footer { background: var(--ink); color: rgba(247, 243, 232, .78); padding-bottom: env(safe-area-inset-bottom, 0px); }
.nsp-footer a { color: rgba(247, 243, 232, .82); text-decoration: none; }
.nsp-footer a:hover { color: var(--spark); }
.nsp-footer-in { max-width: calc(var(--wrap-wide) + 2 * var(--gutter)); margin-inline: auto; padding: 64px var(--gutter) 36px; display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr)); gap: 32px; }
.nsp-footer-mark { margin: 0 0 10px; font: 800 22px/1.1 var(--latin); color: var(--white); letter-spacing: -.02em; }
.nsp-footer-brand p { max-width: 38ch; }
.nsp-footer-small { font-size: 14px; color: rgba(247, 243, 232, .55); }
.nsp-footer-h { margin: 0 0 10px; font: 600 13px/1.3 var(--sans); letter-spacing: .04em; color: var(--spark); }
.nsp-footer-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 15.5px; }
.nsp-footer-base { max-width: calc(var(--wrap-wide) + 2 * var(--gutter)); margin-inline: auto; padding: 18px var(--gutter) 28px; border-top: 1px solid var(--line-dark); display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; font-size: 14px; }
.nsp-footer-base p { margin: 0; }
.nsp-pay { display: flex; flex-wrap: wrap; gap: 6px; }
.nsp-pay span { border: 1px solid var(--line-dark); border-radius: 6px; padding: 2px 8px; font: 600 12.5px/1.6 var(--latin); color: var(--white); }

/* Tutor and WooCommerce: let their layouts breathe inside the theme */
.nsp-woo { padding-block: 40px 72px; }
.nsp-wide-content > .tutor-wrap, .nsp-wide-content > .woocommerce { max-width: calc(var(--wrap-wide) + 2 * var(--gutter)); margin-inline: auto; padding-inline: var(--gutter); padding-block: 40px 72px; }

@media (max-width: 1060px) {
	.nsp-nav, .nsp-header-actions { display: none; }
	.nsp-mobile { display: block; }
	.nsp-header-in { position: relative; }
	.nsp-footer-in { grid-template-columns: 1fr 1fr; }
	.nsp-footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
	.nsp-post-row { grid-template-columns: 1fr; }
	.nsp-footer-in { grid-template-columns: 1fr; }
	.nsp-prose { font-size: 17px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* Tutor templates (archive, single course, dashboard) bring their own container; give it the theme's gutters and keep Tutor's own link styling. */
.tutor-wrap, .tutor-container, .tutor-course-archive-page { max-width: calc(var(--wrap-wide) + 2 * var(--gutter)); margin-inline: auto; padding-inline: var(--gutter); }
.tutor-wrap a, .tutor-container a, [class*="tutor-"] a { text-decoration: none; }
.tutor-course-archive-page, .tutor-wrap.tutor-page-wrap { padding-block: 40px 72px; }