/* =========================================================
   YuBetterSleep — main stylesheet
   ========================================================= */
:root {
	--ybs-navy: #1E2A4A;
	--ybs-navy-2: #2A3760;
	--ybs-navy-3: #141B33;
	--ybs-lav: #8B9FE8;
	--ybs-lav-soft: #C9D2F5;
	--ybs-lav-tint: #EEF1FC;
	--ybs-link: #4F5FC0;
	--ybs-ink-accent: #3E4CA8;
	--ybs-bg: #FAFAF7;
	--ybs-text: #1F2937;
	--ybs-text-2: #4B5563;
	--ybs-muted: #5B6475;
	--ybs-line: #E5E7EB;
	--ybs-radius: 16px;
	--ybs-font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

body.ybs {
	margin: 0;
	background: var(--ybs-bg);
	color: var(--ybs-text);
	font-family: var(--ybs-font);
	font-size: 18px;
	line-height: 1.65;
	-webkit-font-smoothing: antialiased;
}
.ybs a { color: var(--ybs-link); }
.ybs a:hover { color: var(--ybs-navy); }
.ybs img { max-width: 100%; height: auto; }
.ybs h1, .ybs h2, .ybs h3, .ybs h4 { font-family: var(--ybs-font); color: var(--ybs-navy); }

.screen-reader-text {
	position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
	overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.ybs-skip { position: absolute; left: -9999px; top: 8px; z-index: 100; background: #fff; padding: 8px 14px; border-radius: 8px; }
.ybs-skip:focus { left: 8px; }

.ybs-wrap { max-width: 1180px; margin: 0 auto; padding-left: 24px; padding-right: 24px; box-sizing: border-box; }
.ybs-muted { color: var(--ybs-muted); }
.ybs-icon { flex: 0 0 auto; }

/* Buttons */
.ybs-btn {
	display: inline-flex; align-items: center; justify-content: center; gap: 8px;
	min-height: 46px; padding: 12px 24px; border-radius: 999px; border: 0;
	font: 600 16px/1.2 var(--ybs-font); text-decoration: none; cursor: pointer;
	transition: transform .15s ease, background-color .15s ease;
}
.ybs-btn:hover { transform: translateY(-1px); }
.ybs .ybs-btn--lav { background: var(--ybs-lav); color: var(--ybs-navy); }
.ybs .ybs-btn--lav:hover { background: #A3B3EE; color: var(--ybs-navy); }
.ybs .ybs-btn--dark { background: var(--ybs-navy); color: #fff; }
.ybs .ybs-btn--dark:hover { background: var(--ybs-navy-2); color: #fff; }

.ybs-eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .6px; text-transform: uppercase; color: var(--ybs-ink-accent); }
.ybs-eyebrow--muted { color: var(--ybs-muted); }
.ybs .ybs-pill { display: inline-block; background: var(--ybs-lav-tint); color: var(--ybs-ink-accent); font-size: 13px; font-weight: 600; letter-spacing: .6px; text-transform: uppercase; padding: 6px 12px; border-radius: 999px; text-decoration: none; }

/* Header */
.ybs-header { background: var(--ybs-navy); position: relative; z-index: 20; }
.ybs-header__inner { display: flex; align-items: center; gap: 16px; min-height: 76px; }
.ybs .ybs-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; margin-right: auto; order: 1; }
.ybs-nav { order: 2; }
.ybs-theme-toggle { order: 3; display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(255,255,255,.18); background: transparent; color: #E5E8F5; cursor: pointer; }
.ybs-theme-toggle:hover { background: rgba(255,255,255,.08); color: #fff; }
.ybs-theme-toggle__sun { display: none; }
[data-theme="dark"] .ybs-theme-toggle__sun { display: block; }
[data-theme="dark"] .ybs-theme-toggle__moon { display: none; }
.ybs-menu-toggle { order: 4; }
.ybs-logo__img { max-height: 44px; width: auto; }
.ybs-logo__text { font-size: 22px; font-weight: 700; color: #fff; letter-spacing: -.3px; }
.ybs-logo__text span { color: var(--ybs-lav); }
.ybs-nav { display: flex; align-items: center; gap: 28px; }
.ybs-nav__list { display: flex; flex-wrap: wrap; gap: 26px; list-style: none; margin: 0; padding: 0; }
.ybs .ybs-nav__list a { color: #E5E8F5; text-decoration: none; font-size: 15px; font-weight: 500; }
.ybs .ybs-nav__list a:hover, .ybs .ybs-nav__list .current-menu-item a { color: #fff; }
.ybs-menu-toggle { display: none; background: transparent; border: 0; color: #fff; width: 44px; height: 44px; cursor: pointer; }

@media (max-width: 900px) {
	.ybs-menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
	.ybs-nav { display: none; position: absolute; left: 0; right: 0; top: 100%; background: var(--ybs-navy); flex-direction: column; align-items: stretch; padding: 8px 24px 24px; gap: 8px; }
	.ybs-nav.is-open { display: flex; }
	.ybs-nav__list { flex-direction: column; gap: 0; }
	.ybs .ybs-nav__list a { display: block; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.08); font-size: 17px; }
	.ybs-header__cta { margin-top: 12px; }
}

/* Hero */
.ybs-hero { background: var(--ybs-navy); color: #fff; overflow: hidden; }
.ybs-hero__inner { display: flex; flex-wrap: wrap; align-items: center; gap: 32px; padding-top: 64px; padding-bottom: 72px; }
.ybs-hero__text { flex: 1 1 520px; min-width: 0; }
.ybs .ybs-hero h1 { color: #fff; font-size: clamp(36px, 5.5vw, 60px); line-height: 1.08; letter-spacing: -1.2px; margin: 0 0 18px; font-weight: 800; }
.ybs-hero h1 em { font-style: normal; color: var(--ybs-lav); }
.ybs-hero__text > p { font-size: 19px; color: #D5DBF2; margin: 0 0 28px; max-width: 560px; }
.ybs-hero__art { flex: 1 1 320px; max-width: 420px; aspect-ratio: 32 / 26; }
.ybs-hero__trust { font-size: 14px !important; color: #A3ADD6 !important; margin-top: 16px !important; }
@media (max-width: 700px) { .ybs-hero__art { display: none; } .ybs-hero__inner { padding-top: 44px; padding-bottom: 48px; } }

.ybs-search { display: flex; gap: 8px; background: #fff; border-radius: 999px; padding: 6px; max-width: 560px; }
.ybs-search input { flex: 1 1 auto; min-width: 0; border: 0; outline: none; background: transparent; padding: 10px 18px; font: 400 16px var(--ybs-font); color: var(--ybs-text); }
.ybs-search input:focus-visible { outline: 2px solid var(--ybs-lav); border-radius: 999px; }

/* Sections */
.ybs-section { margin-top: 64px; }
.ybs .ybs-section__title { font-size: clamp(24px, 3vw, 30px); letter-spacing: -.5px; margin: 0 0 22px; font-weight: 700; }

.ybs-topics { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; }
.ybs .ybs-topic {
	display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
	min-height: 150px; padding: 22px; background: #fff; border: 2px solid var(--ybs-lav-soft); border-radius: var(--ybs-radius);
	color: var(--ybs-navy); font-weight: 700; font-size: 17px; text-decoration: none; text-align: center;
	transition: border-color .15s ease, transform .15s ease;
}
.ybs .ybs-topic:hover { border-color: var(--ybs-lav); transform: translateY(-2px); color: var(--ybs-navy); }
.ybs-topic .ybs-icon { width: 40px; height: 40px; color: var(--ybs-navy); }

.ybs-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.ybs-card { background: #fff; border: 1px solid var(--ybs-line); border-radius: var(--ybs-radius); overflow: hidden; transition: transform .15s ease, box-shadow .15s ease; }
.ybs-card:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(30, 42, 74, .08); }
.ybs .ybs-card__link { display: block; color: inherit; text-decoration: none; }
.ybs-card__img { aspect-ratio: 16 / 9; background: #DDE2F7; display: flex; align-items: center; justify-content: center; }
.ybs-card__img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ybs-card__body { padding: 18px 20px 22px; }
.ybs .ybs-card__title { font-size: 19px; line-height: 1.35; margin: 6px 0 8px; font-weight: 700; }
.ybs-card__meta { font-size: 14px; color: var(--ybs-muted); }

.ybs-band { margin-top: 64px; background: var(--ybs-lav-tint); border-radius: 24px; padding: 32px; display: flex; flex-wrap: wrap; gap: 20px; align-items: center; justify-content: space-between; }
.ybs .ybs-band h2 { margin: 0 0 4px; font-size: 26px; }
.ybs-band p { margin: 0; color: var(--ybs-text-2); }

/* Newsletter */
.ybs-newsletter { margin: 64px 0 0; background: var(--ybs-navy); border-radius: 24px; padding: 40px 32px; display: flex; flex-wrap: wrap; gap: 24px; align-items: center; justify-content: space-between; }
.ybs-newsletter__text { flex: 1 1 320px; }
.ybs .ybs-newsletter h2 { color: #fff; font-size: 28px; font-weight: 800; letter-spacing: -.5px; margin: 0; }
.ybs-newsletter p { color: #C9D2F5; margin: 8px 0 0; font-size: 17px; }
.ybs-newsletter__form { flex: 1 1 340px; display: flex; flex-wrap: wrap; gap: 12px; }
.ybs-newsletter__form input { flex: 1 1 200px; min-width: 0; min-height: 48px; font: 400 16px var(--ybs-font); padding: 12px 20px; border-radius: 999px; border: 0; background: #fff; color: var(--ybs-text); }

/* Footer */
.ybs-footer { background: var(--ybs-navy-3); color: #C9D2F5; margin-top: 72px; padding: 44px 0 28px; font-size: 15px; }
.ybs-footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 28px; }
.ybs-footer__brand { max-width: 380px; }
.ybs-footer__brand p { margin: 8px 0 0; color: #A3ADD6; }
.ybs-footer__menu { list-style: none; display: flex; flex-wrap: wrap; gap: 12px 22px; margin: 0; padding: 0; }
.ybs .ybs-footer a { color: #C9D2F5; }
.ybs .ybs-footer a:hover { color: #fff; }
.ybs-footer__legal { margin-top: 28px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); font-size: 13px; color: #A3ADD6; }
.ybs-footer__legal p { margin: 0 0 6px; }

/* Single post */
.ybs-post { padding-top: 28px; }
.ybs-crumbs { font-size: 14px; color: var(--ybs-muted); display: flex; flex-wrap: wrap; gap: 8px; }
.ybs .ybs-crumbs a { text-decoration: none; }
.ybs-post__head { max-width: 820px; margin-top: 22px; }
.ybs .ybs-post__title { font-size: clamp(32px, 5vw, 48px); line-height: 1.12; letter-spacing: -1px; margin: 16px 0 14px; font-weight: 800; }
.ybs-post__dek { font-size: 20px; line-height: 1.55; color: var(--ybs-text-2); margin: 0; }
.ybs-byline { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 24px; padding: 16px 0; border-top: 1px solid var(--ybs-line); border-bottom: 1px solid var(--ybs-line); font-size: 15px; line-height: 1.5; }
.ybs .ybs-byline a { font-weight: 600; color: var(--ybs-navy); }
.ybs-avatar img { border-radius: 50%; display: block; }
.ybs-byline__text { flex: 1 1 240px; }
.ybs-disclosure { font-size: 13px; color: var(--ybs-muted); margin: 12px 0 0; }
.ybs-post__hero { margin: 28px 0 0; }
.ybs-post__hero img { width: 100%; border-radius: 20px; display: block; aspect-ratio: 16 / 9; object-fit: cover; }

.ybs-post__layout { display: flex; flex-wrap: wrap; gap: 56px; margin-top: 40px; align-items: flex-start; }
.ybs-content { flex: 999 1 560px; min-width: 0; max-width: 760px; font-size: 18px; line-height: 1.75; }
.ybs-content--page { max-width: 760px; }
.ybs .ybs-content h2 { font-size: clamp(26px, 3vw, 30px); line-height: 1.25; margin: 48px 0 12px; letter-spacing: -.5px; scroll-margin-top: 24px; }
.ybs .ybs-content h3 { font-size: 22px; line-height: 1.35; margin: 30px 0 8px; }
.ybs-content p { margin: 0 0 18px; }
.ybs-content ul, .ybs-content ol { margin: 0 0 18px; padding-left: 24px; }
.ybs-content li { margin-bottom: 8px; }
.ybs-content strong { color: var(--ybs-navy); }
.ybs-content table { width: 100%; border-collapse: collapse; margin: 0 0 24px; font-size: 16px; display: block; overflow-x: auto; }
.ybs-content th, .ybs-content td { border: 1px solid var(--ybs-line); padding: 10px 14px; text-align: left; vertical-align: top; }
.ybs-content th { background: var(--ybs-lav-tint); color: var(--ybs-navy); }

.ybs-box { border-radius: var(--ybs-radius); padding: 22px 26px; margin: 28px 0; }
.ybs-box__title { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; }
.ybs-box__body p:last-child { margin-bottom: 0; }
.ybs-box__body { margin-top: 8px; }
.ybs-quick { background: var(--ybs-lav-tint); margin-top: 0; }
.ybs-quick .ybs-box__title { color: var(--ybs-navy); }
.ybs-quick .ybs-icon { color: var(--ybs-ink-accent); }
.ybs-doctor { background: #FFF7ED; color: #431407; }
.ybs-doctor .ybs-box__title { color: #7C2D12; }
.ybs-doctor .ybs-icon { color: #9A3412; }

.ybs-takeaways { margin: 36px 0; border-radius: var(--ybs-radius); padding: 24px 28px; background: var(--ybs-navy); color: #E5E8F5; }
.ybs-takeaways__title { font-weight: 700; color: #fff; font-size: 20px; }
.ybs-takeaways ul { margin: 10px 0 0; }

.ybs-product { margin: 36px 0; border: 1.5px solid var(--ybs-lav-soft); border-radius: 18px; padding: 24px; background: #fff; display: flex; flex-wrap: wrap; gap: 24px; align-items: center; }
.ybs-product__img { flex: 0 0 160px; }
.ybs-product__img img { width: 160px; height: 160px; object-fit: contain; border-radius: 12px; }
.ybs-product__ph { width: 160px; height: 160px; border-radius: 12px; background: var(--ybs-lav-tint); display: flex; align-items: center; justify-content: center; color: var(--ybs-ink-accent); }
.ybs-product__ph .ybs-icon { width: 48px; height: 48px; }
.ybs-product__body { flex: 1 1 260px; min-width: 0; }
.ybs-product__name { font-size: 22px; font-weight: 700; color: var(--ybs-navy); margin: 4px 0 10px; line-height: 1.3; }
.ybs-content .ybs-product__points { list-style: none; padding: 0; margin: 0 0 16px; font-size: 16px; line-height: 1.55; }
.ybs-product__points li { display: flex; gap: 8px; }
.ybs-product__points .ybs-icon { width: 18px; height: 18px; margin-top: 3px; color: var(--ybs-ink-accent); }
.ybs .ybs-content .ybs-product .ybs-btn { text-decoration: none; }

.ybs-faq h3 { font-size: 19px !important; }

.ybs-sources { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--ybs-line); font-size: 15px; line-height: 1.6; color: var(--ybs-text-2); }
.ybs .ybs-sources h2 { font-size: 18px !important; margin: 0 0 8px !important; }
.ybs-medical-note { font-size: 14px; color: var(--ybs-muted); margin-top: 24px; }
.ybs-authorbox { margin-top: 28px; background: #fff; border: 1px solid var(--ybs-line); border-radius: 18px; padding: 24px; display: flex; flex-wrap: wrap; gap: 20px; align-items: flex-start; }
.ybs-authorbox > div:last-child { flex: 1 1 260px; min-width: 0; font-size: 16px; line-height: 1.6; }
.ybs-authorbox__name { font-size: 20px; font-weight: 700; color: var(--ybs-navy); }
.ybs-authorbox p { margin: 6px 0 0; color: var(--ybs-text-2); }

.ybs-aside { flex: 1 1 260px; min-width: 0; display: flex; flex-direction: column; gap: 24px; }
.ybs-toc { background: #fff; border: 1px solid var(--ybs-line); border-radius: var(--ybs-radius); padding: 22px; }
.ybs-toc__title, .ybs-promo__title { font-weight: 700; color: var(--ybs-navy); margin-bottom: 8px; }
.ybs-toc ol { margin: 0; padding-left: 20px; font-size: 15px; line-height: 1.7; }
.ybs-toc li { margin-bottom: 6px; }
.ybs .ybs-toc a { text-decoration: none; }
.ybs-promo { background: var(--ybs-lav-tint); border-radius: var(--ybs-radius); padding: 22px; }
.ybs-promo p { margin: 0 0 14px; font-size: 15px; line-height: 1.55; }
.ybs-ad { text-align: center; }

/* Archive & pages */
.ybs-archive, .ybs-page { padding-top: 40px; }
.ybs-archive__head { margin-bottom: 28px; }
.ybs .ybs-archive__head h1 { font-size: clamp(30px, 4.5vw, 44px); letter-spacing: -1px; margin: 6px 0 8px; font-weight: 800; }
.ybs-archive__desc { color: var(--ybs-text-2); max-width: 720px; }
.ybs-pagination { margin-top: 32px; }
.ybs-pagination .nav-links { display: flex; gap: 8px; flex-wrap: wrap; }
.ybs-pagination .page-numbers { display: inline-flex; min-width: 44px; min-height: 44px; align-items: center; justify-content: center; border-radius: 999px; background: #fff; border: 1px solid var(--ybs-line); text-decoration: none; padding: 0 14px; }
.ybs-pagination .current { background: var(--ybs-navy); color: #fff; border-color: var(--ybs-navy); }

/* Sleep calculator */
.ybs-calc { background: #fff; border: 1.5px solid var(--ybs-lav-soft); border-radius: 20px; padding: 26px; margin: 8px 0 32px; }
.ybs-calc__tabs { display: flex; flex-wrap: wrap; gap: 8px; background: var(--ybs-lav-tint); padding: 6px; border-radius: 999px; margin-bottom: 22px; }
.ybs-calc__tabs button { flex: 1 1 200px; min-height: 44px; border: 0; border-radius: 999px; background: transparent; font: 600 15px var(--ybs-font); color: var(--ybs-navy); cursor: pointer; padding: 8px 16px; }
.ybs-calc__tabs button[aria-selected="true"] { background: var(--ybs-navy); color: #fff; }
.ybs-calc__form label { display: block; font-weight: 600; color: var(--ybs-navy); margin-bottom: 8px; }
.ybs-calc__row { display: flex; flex-wrap: wrap; gap: 12px; }
.ybs-calc__row input { flex: 1 1 160px; min-height: 48px; font: 600 20px var(--ybs-font); padding: 8px 16px; border: 1.5px solid var(--ybs-lav-soft); border-radius: 12px; color: var(--ybs-navy); }
.ybs-calc__result { margin-top: 24px; }
.ybs-calc__label { font-weight: 600; color: var(--ybs-navy); margin-bottom: 12px; }
.ybs-content .ybs-calc__times { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin: 0 0 14px; }
.ybs-calc__times li { background: var(--ybs-lav-tint); border-radius: 14px; padding: 16px; display: flex; flex-direction: column; margin: 0; }
.ybs-calc__times li.is-best { background: var(--ybs-navy); }
.ybs-calc__times li.is-best strong, .ybs-calc__times li.is-best span { color: #fff; }
.ybs-calc__times strong { font-size: 26px; color: var(--ybs-navy); }
.ybs-calc__times span { font-size: 14px; color: var(--ybs-muted); }
.ybs-calc__note { font-size: 14px; color: var(--ybs-muted); }

.ybs-tools { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.ybs .ybs-tool { display: flex; flex-direction: column; gap: 6px; padding: 24px; border-radius: var(--ybs-radius); background: var(--ybs-lav-tint); text-decoration: none; color: var(--ybs-navy); transition: transform .15s ease; }
.ybs .ybs-tool:hover { transform: translateY(-2px); color: var(--ybs-navy); }
.ybs-tool .ybs-icon { width: 32px; height: 32px; color: var(--ybs-ink-accent); margin-bottom: 6px; }
.ybs-tool__name { font-weight: 700; font-size: 19px; }
.ybs-tool__desc { font-size: 15px; color: var(--ybs-text-2); }
[data-theme="dark"] .ybs .ybs-tool, [data-theme="dark"] .ybs .ybs-tool:hover { color: #EEF1FC; }
.ybs .ybs-btn--ghost { background: transparent; color: var(--ybs-navy); border: 1.5px solid var(--ybs-lav-soft); }

/* Sleep sound player */
.ybs-sound { background: #fff; border: 1.5px solid var(--ybs-lav-soft); border-radius: 20px; padding: 24px; margin: 8px 0 32px; }
.ybs-sound__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; }
.ybs-sound__btn { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; min-height: 110px; padding: 16px; border-radius: 16px; border: 1.5px solid var(--ybs-lav-soft); background: var(--ybs-lav-tint); color: var(--ybs-navy); font-family: var(--ybs-font); text-align: left; cursor: pointer; transition: transform .15s ease; }
.ybs-sound__btn:hover { transform: translateY(-2px); }
.ybs-sound__btn[aria-pressed="true"] { background: var(--ybs-navy); border-color: var(--ybs-navy); color: #fff; }
.ybs-sound__name { font-weight: 700; font-size: 17px; }
.ybs-sound__desc { font-size: 14px; opacity: .85; }
.ybs-sound__wave { display: flex; align-items: flex-end; gap: 3px; height: 22px; margin-bottom: 6px; }
.ybs-sound__wave i { display: block; width: 4px; height: 6px; border-radius: 2px; background: currentColor; opacity: .6; }
.ybs-sound__btn[aria-pressed="true"] .ybs-sound__wave i { animation: ybs-wave 1.2s ease-in-out infinite; }
.ybs-sound__wave i:nth-child(2) { animation-delay: .15s !important; }
.ybs-sound__wave i:nth-child(3) { animation-delay: .3s !important; }
.ybs-sound__wave i:nth-child(4) { animation-delay: .45s !important; }
@keyframes ybs-wave { 0%, 100% { height: 6px; } 50% { height: 20px; } }
.ybs-sound__controls { display: flex; flex-wrap: wrap; gap: 18px 28px; align-items: center; margin-top: 20px; }
.ybs-sound__vol { display: flex; align-items: center; gap: 12px; flex: 1 1 240px; font-weight: 600; color: var(--ybs-navy); font-size: 15px; }
.ybs-sound__vol input { flex: 1 1 auto; accent-color: var(--ybs-navy); min-height: 44px; }
.ybs-sound__timers { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-weight: 600; color: var(--ybs-navy); font-size: 15px; }
.ybs-sound__timers span { margin-right: 4px; }
.ybs-sound__timers button { min-height: 40px; padding: 6px 14px; border-radius: 999px; border: 1.5px solid var(--ybs-lav-soft); background: transparent; color: var(--ybs-navy); font: 600 14px var(--ybs-font); cursor: pointer; }
.ybs-sound__timers button[aria-pressed="true"] { background: var(--ybs-navy); border-color: var(--ybs-navy); color: #fff; }
.ybs-content .ybs-sound__status { margin: 18px 0 4px; font-weight: 600; color: var(--ybs-ink-accent); }
.ybs-content .ybs-sound__note { margin: 0; font-size: 14px; color: var(--ybs-muted); }

/* Chronotype quiz */
.ybs-quiz { background: #fff; border: 1.5px solid var(--ybs-lav-soft); border-radius: 20px; padding: 24px; margin: 8px 0 32px; }
.ybs-quiz__progress { height: 8px; border-radius: 999px; background: var(--ybs-lav-tint); overflow: hidden; margin-bottom: 20px; }
.ybs-quiz__progress span { display: block; height: 100%; width: 0; background: var(--ybs-lav); transition: width .25s ease; }
.ybs-quiz__q { border: 0; padding: 0; margin: 0 0 26px; }
.ybs-quiz__q legend { font-weight: 700; color: var(--ybs-navy); font-size: 18px; line-height: 1.4; margin-bottom: 12px; padding: 0; }
.ybs-quiz__num { display: block; font-size: 13px; font-weight: 600; color: var(--ybs-muted); text-transform: uppercase; letter-spacing: .6px; margin-bottom: 4px; }
.ybs-quiz__opt { display: flex; align-items: center; gap: 12px; min-height: 48px; padding: 10px 16px; border: 1.5px solid var(--ybs-line); border-radius: 12px; margin-bottom: 8px; cursor: pointer; font-size: 16px; }
.ybs-quiz__opt:hover { border-color: var(--ybs-lav); }
.ybs-quiz__opt input { width: 20px; height: 20px; accent-color: var(--ybs-navy); flex: 0 0 auto; }
.ybs-quiz__opt:has(input:checked) { border-color: var(--ybs-navy); background: var(--ybs-lav-tint); }
.ybs-content .ybs-quiz__error { color: #9A3412; font-weight: 600; }
.ybs-quiz__result { margin-top: 28px; padding: 24px; border-radius: 16px; background: var(--ybs-lav-tint); outline: none; }
.ybs-quiz__type { font-size: 32px; font-weight: 800; color: var(--ybs-navy); letter-spacing: -.5px; margin: 4px 0 6px; }
.ybs-quiz__tips-title { font-weight: 700; color: var(--ybs-navy); margin-top: 8px; }
.ybs-quiz__actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0 12px; }
.ybs-content .ybs-quiz__note { font-size: 14px; color: var(--ybs-muted); margin: 0; }

/* =========================================================
   Dark mode
   ========================================================= */
[data-theme="dark"] {
	--ybs-bg: #0F1424;
	--ybs-text: #D8DCEB;
	--ybs-text-2: #B4BBD3;
	--ybs-muted: #9CA4C2;
	--ybs-line: #2A3352;
	--ybs-lav-tint: #1C2440;
	--ybs-lav-soft: #34406A;
	--ybs-link: #A9B7F0;
	--ybs-ink-accent: #A9B7F0;
	color-scheme: dark;
}
[data-theme="dark"] body.ybs { background: var(--ybs-bg); color: var(--ybs-text); }
[data-theme="dark"] .ybs a:hover { color: #fff; }
[data-theme="dark"] .ybs h1, [data-theme="dark"] .ybs h2, [data-theme="dark"] .ybs h3, [data-theme="dark"] .ybs h4,
[data-theme="dark"] .ybs-content strong, [data-theme="dark"] .ybs .ybs-byline a,
[data-theme="dark"] .ybs-toc__title, [data-theme="dark"] .ybs-promo__title, [data-theme="dark"] .ybs-authorbox__name,
[data-theme="dark"] .ybs-product__name, [data-theme="dark"] .ybs-quick .ybs-box__title,
[data-theme="dark"] .ybs .ybs-topic, [data-theme="dark"] .ybs-topic .ybs-icon,
[data-theme="dark"] .ybs-calc__label, [data-theme="dark"] .ybs-calc__form label, [data-theme="dark"] .ybs-calc__times strong,
[data-theme="dark"] .ybs-quiz__q legend, [data-theme="dark"] .ybs-quiz__type, [data-theme="dark"] .ybs-quiz__tips-title,
[data-theme="dark"] .ybs-sound__btn, [data-theme="dark"] .ybs-sound__vol, [data-theme="dark"] .ybs-sound__timers,
[data-theme="dark"] .ybs-sound__timers button, [data-theme="dark"] .ybs .ybs-btn--ghost, [data-theme="dark"] .ybs-calc__tabs button { color: #EEF1FC; }
[data-theme="dark"] .ybs-card, [data-theme="dark"] .ybs .ybs-topic, [data-theme="dark"] .ybs-toc, [data-theme="dark"] .ybs-authorbox,
[data-theme="dark"] .ybs-product, [data-theme="dark"] .ybs-calc, [data-theme="dark"] .ybs-quiz, [data-theme="dark"] .ybs-sound,
[data-theme="dark"] .ybs-pagination .page-numbers { background: #161D33; }
[data-theme="dark"] .ybs-card__img { background: #1C2440; }
[data-theme="dark"] .ybs-calc__row input { background: #0F1424; color: #EEF1FC; }
[data-theme="dark"] .ybs-doctor { background: #2A1D14; color: #F3D9C4; }
[data-theme="dark"] .ybs-doctor .ybs-box__title, [data-theme="dark"] .ybs-doctor .ybs-icon { color: #FDBA8C; }
[data-theme="dark"] .ybs-calc__tabs button[aria-selected="true"], [data-theme="dark"] .ybs-sound__btn[aria-pressed="true"],
[data-theme="dark"] .ybs-sound__timers button[aria-pressed="true"], [data-theme="dark"] .ybs-calc__times li.is-best { background: var(--ybs-lav); border-color: var(--ybs-lav); color: #141B33; }
[data-theme="dark"] .ybs-calc__times li.is-best strong, [data-theme="dark"] .ybs-calc__times li.is-best span { color: #141B33; }
[data-theme="dark"] .ybs .ybs-btn--dark { background: var(--ybs-lav); color: #141B33; }
[data-theme="dark"] .ybs-takeaways, [data-theme="dark"] .ybs-newsletter, [data-theme="dark"] .ybs-hero, [data-theme="dark"] .ybs-header { background: #141B33; }
[data-theme="dark"] .ybs-quiz__opt:has(input:checked) { border-color: var(--ybs-lav); }
[data-theme="dark"] .ybs-content th { color: #EEF1FC; }

:focus-visible { outline: 3px solid var(--ybs-lav); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* Internal links */
.ybs-content a.ybs-ilink { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }