/* DiaformRX DE site-4 | prefix: dkf | layout: ribbon-separators | font: Source Sans 3 */

/* === RESET & BASE === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:var(--dkf-font);color:var(--dkf-ink);background:var(--dkf-bg);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--dkf-blue);text-decoration:none;transition:color var(--dkf-ease)}
a:hover{color:var(--dkf-blue-hov)}
ul,ol{list-style:none}
table{border-collapse:collapse;width:100%}

/* === VESSEL (container) === */
.dkf-vessel{max-width:var(--dkf-wrap);margin:0 auto;padding:0 20px}

/* === HEADER / MASTHEAD === */
.dkf-masthead{position:sticky;top:0;z-index:100;background:var(--dkf-hdr-bg);border-bottom:var(--dkf-ribbon) solid var(--dkf-red);transition:box-shadow .3s}
.dkf-masthead.scrolled{box-shadow:0 2px 16px rgba(0,0,0,.25)}
.dkf-masthead-inner{max-width:var(--dkf-wrap);margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:24px;height:60px}
.dkf-brand{color:var(--dkf-hdr-txt);font-weight:700;font-size:1.15rem;display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.dkf-logo-badge{width:30px;height:30px;flex:0 0 auto}
.dkf-logo-word{line-height:1;white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.dkf-brand-tag{font-size:.7rem;font-weight:500;background:var(--dkf-red);color:#fff;padding:2px 7px;border-radius:3px;text-transform:uppercase;letter-spacing:.5px}
.dkf-header-links{margin-left:auto}
.dkf-header-links-list{display:flex;gap:20px;align-items:center}
.dkf-header-links-list a{color:var(--dkf-hdr-txt);font-size:.9rem;font-weight:500;position:relative;padding-bottom:2px}
.dkf-header-links-list a::after{content:'';position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--dkf-red);transition:width .25s}
.dkf-header-links-list a:hover{color:#fff}
.dkf-header-links-list a:hover::after{width:100%}

/* CTA button */
.dkf-shop-button{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--dkf-cta);color:var(--dkf-cta-txt);font-weight:700;font-size:.9rem;padding:10px 22px;border-radius:6px;border:none;cursor:pointer;transition:background var(--dkf-ease),transform var(--dkf-ease);text-decoration:none;white-space:nowrap}
.dkf-shop-button:hover{background:var(--dkf-cta-hov);color:var(--dkf-cta-txt);transform:translateY(-1px)}
.dkf-shop-button--wide{width:100%;max-width:340px;padding:14px 28px;font-size:1rem}
.dkf-header-links a.dkf-shop-button{color:var(--dkf-cta-txt)}
.dkf-header-links a.dkf-shop-button:hover{color:var(--dkf-cta-txt)}

/* Burger */
.dkf-mobile-menu-btn{display:none;background:none;border:none;color:var(--dkf-hdr-txt);cursor:pointer;padding:4px}

/* Mobile overlay */
.dkf-mobile-overlay{display:none;position:fixed;inset:0;z-index:200;background:var(--dkf-hdr-bg);flex-direction:column;padding:60px 24px 24px}
.dkf-mobile-overlay.active{display:flex}
.dkf-mobile-close{display:none;position:absolute;top:16px;right:20px;background:none;border:none;color:#fff;font-size:2rem;cursor:pointer;line-height:1}
.dkf-mobile-nav ul{display:flex;flex-direction:column;gap:16px}
.dkf-mobile-nav a{color:#fff;font-size:1.1rem;font-weight:500;display:block;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.08)}

/* === HERO / PRIMER BLOCK === */
.dkf-primer-block{background:linear-gradient(135deg,var(--dkf-bg-alt) 0%,var(--dkf-bg) 100%);padding:0 0 48px;border-bottom:var(--dkf-ribbon) solid var(--dkf-red)}
.dkf-landing-header{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,0.9fr);gap:40px;align-items:center;min-height:70vh;padding:60px 0 32px}
.dkf-landing-header-copy{display:flex;flex-direction:column;gap:16px}
.dkf-landing-header picture img{display:block;width:100%;max-width:min(520px,100%);height:auto;border-radius:var(--dkf-r);box-shadow:0 4px 24px var(--dkf-card-sh)}
.dkf-landing-header-media{display:flex;justify-content:center;align-items:center}

/* Rating pips */
.dkf-rating-pips{display:flex;align-items:center;gap:3px}
.dkf-rating-pips span{font-weight:600;font-size:.9rem;margin-left:6px;color:var(--dkf-ink-sec)}

/* Primer lead */
.dkf-primer-block-lead{font-size:1.05rem;color:var(--dkf-ink-sec);line-height:1.75}

/* Deal banner */
.dkf-deal-banner{background:var(--dkf-hdr-bg);color:#fff;border-radius:var(--dkf-r);padding:16px 24px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.dkf-old-tag{font-size:1rem;text-decoration:line-through;color:var(--dkf-old)}
.dkf-new-tag{font-size:1.5rem;font-weight:700;color:#fff}
.dkf-offer-label{background:var(--dkf-badge);color:#fff;font-weight:700;padding:3px 9px;border-radius:4px;font-size:.8rem}
.dkf-deal-banner .dkf-shop-button{margin-left:auto}

/* Product brief (summary table) */
.dkf-product-brief{margin-top:32px}
.dkf-product-brief .dkf-comparison-rows{background:var(--dkf-card);border:1px solid var(--dkf-card-line);border-radius:var(--dkf-r);overflow:hidden}
.dkf-product-brief .dkf-comparison-rows th{text-align:left;padding:10px 16px;background:var(--dkf-surface);font-weight:600;font-size:.9rem;color:var(--dkf-ink);width:180px;border-bottom:1px solid var(--dkf-line);vertical-align:top}
.dkf-product-brief .dkf-comparison-rows td{padding:10px 16px;border-bottom:1px solid var(--dkf-line);font-size:.9rem;color:var(--dkf-ink-sec)}
.dkf-product-brief .dkf-comparison-rows tr:last-child th,
.dkf-product-brief .dkf-comparison-rows tr:last-child td{border-bottom:none}

/* === TOC / SECTION INDEX === */
.dkf-section-index{background:var(--dkf-bg);padding:32px 0;border-bottom:var(--dkf-ribbon) solid var(--dkf-red)}
.dkf-section-index-heading{font-size:1rem;font-weight:700;color:var(--dkf-ink);display:block;margin-bottom:12px}
.dkf-section-index-list{display:grid;grid-template-columns:repeat(3,1fr);gap:8px 16px;counter-reset:toc-item}
.dkf-section-index-list li{counter-increment:toc-item}
.dkf-section-index-list a{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:6px;font-size:.88rem;font-weight:500;color:var(--dkf-blue);background:var(--dkf-bg-alt);border:1px solid var(--dkf-line);transition:all var(--dkf-ease)}
.dkf-section-index-list a::before{content:counter(toc-item,decimal-leading-zero);font-size:.75rem;font-weight:700;color:var(--dkf-red);min-width:22px}
.dkf-section-index-list a:hover{background:var(--dkf-surface);border-color:var(--dkf-blue);color:var(--dkf-blue-hov)}

/* === REVIEW MODULE (content sections) === */
.dkf-review-module{padding:48px 0;border-bottom:var(--dkf-ribbon) solid var(--dkf-red)}
.dkf-review-module--alt{background:var(--dkf-bg-alt)}
.dkf-review-module h2{font-size:clamp(1.3rem,3vw,1.8rem);font-weight:700;color:var(--dkf-ink);margin-bottom:20px;line-height:1.35}
.dkf-review-module h3{font-size:1.1rem;font-weight:700;color:var(--dkf-ink);margin-bottom:10px;margin-top:4px}
.dkf-review-module p{margin-bottom:16px;color:var(--dkf-ink-sec);font-size:.95rem}
.dkf-review-module p:last-child{margin-bottom:0}

/* Segment (sub-block with ribbon-top) */
.dkf-review-module-segment{background:var(--dkf-card);border:1px solid var(--dkf-card-line);border-top:var(--dkf-ribbon) solid var(--dkf-red);border-radius:0 0 var(--dkf-r) var(--dkf-r);padding:var(--dkf-pad-card);margin-bottom:20px;box-shadow:var(--shadow-card,0 1px 4px rgba(26,26,46,.04))}
.dkf-review-module-segment h3{color:var(--dkf-ink)}
.dkf-review-module-segment p{color:var(--dkf-ink-sec)}
.dkf-review-module-segment--payments{border-top-color:var(--dkf-blue)}

/* === INGREDIENT / ACTIVE AGENT === */
.dkf-active-agent{display:grid;grid-template-columns:200px 1fr;gap:24px;align-items:start;background:var(--dkf-card);border:1px solid var(--dkf-card-line);border-top:var(--dkf-ribbon) solid var(--dkf-blue);border-radius:0 0 var(--dkf-r) var(--dkf-r);padding:var(--dkf-pad-card);margin-bottom:20px;box-shadow:0 1px 4px var(--dkf-card-sh)}
.dkf-active-agent--full{grid-template-columns:1fr}
.dkf-active-agent-media img{width:100%;height:auto;border-radius:6px;object-fit:cover}
.dkf-active-agent-text h3{margin-top:0}
.dkf-active-agent-text p{margin-bottom:12px}

/* === TABLE === */
.dkf-table-scroll{overflow-x:auto;margin:24px 0}
.dkf-comparison-rows{width:100%;border-collapse:collapse;font-size:.88rem}
.dkf-comparison-rows thead th{background:var(--dkf-hdr-bg);color:#fff;padding:12px 14px;text-align:left;font-weight:600;white-space:nowrap}
.dkf-comparison-rows tbody td{padding:10px 14px;border-bottom:1px solid var(--dkf-line);color:var(--dkf-ink-sec);vertical-align:top}
.dkf-comparison-rows tbody tr:nth-child(even){background:var(--dkf-bg-alt)}
.dkf-comparison-rows tbody tr:hover{background:var(--dkf-surface)}
.dkf-matchup-chart tbody tr:first-child td{background:rgba(196,27,27,.04);font-weight:500}

/* === REVIEWS / OPINION BUBBLES === */
.dkf-opinion-bubble-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--dkf-gap);margin-top:24px}
.dkf-opinion-bubble{background:var(--dkf-card);border:1px solid var(--dkf-card-line);border-top:var(--dkf-ribbon) solid var(--dkf-blue);border-radius:0 0 var(--dkf-r) var(--dkf-r);padding:var(--dkf-pad-card);box-shadow:0 1px 4px var(--dkf-card-sh);transition:box-shadow var(--dkf-ease)}
.dkf-opinion-bubble:hover{box-shadow:0 2px 8px rgba(26,26,46,.08)}
.dkf-opinion-bubble-head{display:flex;flex-direction:column;gap:4px;margin-bottom:12px}
.dkf-opinion-bubble-head strong{font-size:1rem;color:var(--dkf-ink)}
.dkf-opinion-bubble-meta{font-size:.8rem;color:var(--dkf-ink-muted)}
.dkf-opinion-bubble blockquote{font-size:.9rem;color:var(--dkf-ink-sec);line-height:1.65;font-style:normal;border:none;padding:0;margin:0}

/* === NUMBERED GUIDE (steps) === */
.dkf-numbered-guide{list-style:none;counter-reset:step;display:grid;gap:14px;margin:20px 0}
.dkf-numbered-guide li{counter-increment:step;background:var(--dkf-card);padding:16px 20px 16px 56px;border-radius:var(--dkf-r);position:relative;border:1px solid var(--dkf-card-line);font-size:.9rem;color:var(--dkf-ink-sec);line-height:1.65;box-shadow:0 1px 4px var(--dkf-card-sh)}
.dkf-numbered-guide li::before{content:counter(step);position:absolute;left:16px;top:16px;background:var(--dkf-red);color:#fff;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem}
.dkf-numbered-guide li strong{color:var(--dkf-ink);display:block;margin-bottom:4px}

/* Discount note */
.dkf-discount-note{background:var(--dkf-warn-bg);border-left:4px solid var(--dkf-warn-line);padding:14px 18px;border-radius:0 var(--dkf-r) var(--dkf-r) 0;font-size:.88rem;color:var(--dkf-ink-sec);margin:20px 0}

/* === PAYMENT ICONS === */
.dkf-payment-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:12px}
.dkf-payment-icon{height:36px;max-width:80px;width:auto;background:#fff;padding:6px 10px;border-radius:6px;border:1px solid var(--dkf-line);object-fit:contain}

/* === FAQ / COMMON QUERIES === */
.dkf-common-queries{display:grid;gap:8px;margin-top:20px}
.dkf-common-queries-item{border:1px solid var(--dkf-card-line);border-radius:var(--dkf-r);overflow:hidden;background:var(--dkf-card);transition:box-shadow var(--dkf-ease)}
.dkf-common-queries-item[open]{box-shadow:0 2px 8px var(--dkf-card-sh)}
.dkf-common-queries-item summary{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;cursor:pointer;user-select:none;border-bottom:1px solid transparent;transition:background var(--dkf-ease)}
.dkf-common-queries-item summary:hover{background:var(--dkf-bg-alt)}
.dkf-common-queries-item summary h3{margin:0;font-size:.95rem;font-weight:600;color:var(--dkf-ink);flex:1}
.dkf-common-queries-item summary::-webkit-details-marker{display:none}
.dkf-common-queries-item summary::marker{content:''}
.dkf-faq-chevron{flex-shrink:0;color:var(--dkf-ink-muted);transition:transform .25s}
.dkf-common-queries-item[open] .dkf-faq-chevron{transform:rotate(180deg)}
.dkf-common-queries-item[open] summary{border-bottom-color:var(--dkf-line)}
.dkf-common-queries-answer{padding:16px 20px}
.dkf-common-queries-answer p{font-size:.9rem;color:var(--dkf-ink-sec);margin:0}

/* === VERDICT / WRAP UP === */
.dkf-wrap-up-cta{display:flex;flex-direction:column;align-items:center;gap:10px;margin-top:28px;text-align:center}
.dkf-wrap-up-note{font-size:.8rem;color:var(--dkf-ink-muted)}

/* === SPECIALIST INFO (author) === */
.dkf-specialist-info{padding:48px 0;background:var(--dkf-bg);border-bottom:var(--dkf-ribbon) solid var(--dkf-red)}
.dkf-specialist-info-box{display:flex;gap:20px;align-items:flex-start;background:var(--dkf-card);border:1px solid var(--dkf-card-line);border-top:var(--dkf-ribbon) solid var(--dkf-blue);border-radius:0 0 var(--dkf-r) var(--dkf-r);padding:var(--dkf-pad-card);box-shadow:0 1px 4px var(--dkf-card-sh);margin-bottom:20px}
.dkf-specialist-info-avatar{width:80px;height:80px;border-radius:50%;object-fit:cover;flex-shrink:0;border:3px solid var(--dkf-surface)}
.dkf-specialist-info-content{display:flex;flex-direction:column;gap:4px}
.dkf-specialist-info-content strong{font-size:1.05rem;color:var(--dkf-ink)}
.dkf-specialist-info-role{font-size:.85rem;color:var(--dkf-blue);font-weight:600}
.dkf-specialist-info-content p{font-size:.9rem;color:var(--dkf-ink-sec);margin-top:6px;margin-bottom:0}

/* Medical advisory */
.dkf-med-advisory{background:var(--dkf-warn-bg);border-left:4px solid var(--dkf-warn-line);padding:16px 20px;border-radius:0 var(--dkf-r) var(--dkf-r) 0;margin-top:20px}
.dkf-med-advisory p{font-size:.88rem;color:var(--dkf-ink-sec);margin:0}
.dkf-med-advisory strong{color:var(--dkf-ink)}

/* === FOOTER === */
.dkf-base-footer{background:var(--dkf-foot-bg);color:var(--dkf-foot-txt);padding:48px 0 24px}
.dkf-bottom-area{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;margin-bottom:32px}
.dkf-bottom-area-brand p{font-size:.85rem;margin-top:12px;line-height:1.65;color:var(--dkf-foot-txt)}
.dkf-bottom-area-brand .dkf-brand{color:#fff}
.dkf-bottom-area-links strong,
.dkf-bottom-area-legal strong{font-size:.9rem;color:#fff;display:block;margin-bottom:10px}
.dkf-bottom-area-links ul,
.dkf-bottom-area-legal ul{display:flex;flex-direction:column;gap:6px}
.dkf-bottom-area-links a,
.dkf-bottom-area-legal a{color:var(--dkf-foot-txt);font-size:.85rem;transition:color var(--dkf-ease)}
.dkf-bottom-area-links a:hover,
.dkf-bottom-area-legal a:hover{color:#fff}
.dkf-bottom-area-copy{border-top:1px solid rgba(255,255,255,.08);padding-top:20px;text-align:center}
.dkf-bottom-area-copy p{font-size:.8rem;color:var(--dkf-foot-txt);margin-bottom:4px}

/* === RESPONSIVE: MOBILE FIRST === */

/* < 768px (base mobile) */
@media(max-width:767px){
  .dkf-header-links{display:none}
  .dkf-masthead-inner .dkf-shop-button{display:none}
  .dkf-mobile-menu-btn{display:block}
  .dkf-mobile-overlay.active .dkf-mobile-close{display:block}
  .dkf-landing-header{grid-template-columns:1fr;min-height:auto;padding:32px 0 16px;gap:24px}
  .dkf-landing-header-media{order:0}
  .dkf-landing-header-copy{order:1}
  .dkf-section-index-list{grid-template-columns:1fr}
  .dkf-active-agent{grid-template-columns:1fr}
  .dkf-active-agent-media img{max-width:200px}
  .dkf-opinion-bubble-grid{grid-template-columns:1fr}
  .dkf-bottom-area{grid-template-columns:1fr;gap:24px}
  .dkf-product-brief .dkf-comparison-rows th{width:120px;font-size:.82rem}
  .dkf-product-brief .dkf-comparison-rows td{font-size:.82rem}
  .dkf-deal-banner{flex-direction:column;align-items:flex-start;gap:10px}
  .dkf-deal-banner .dkf-shop-button{margin-left:0;width:100%}
  h1{font-size:1.5rem}
}

/* >= 768px tablet */
@media(min-width:768px){
  .dkf-section-index-list{grid-template-columns:repeat(3,1fr)}
  .dkf-active-agent-media img{max-width:200px;min-height:150px;object-fit:cover}
}

/* >= 1024px desktop */
@media(min-width:1024px){
  .dkf-vessel{padding:0 32px}
  .dkf-masthead-inner{height:64px}
  .dkf-landing-header{padding:80px 0 40px}
  .dkf-review-module{padding:56px 0}
}

/* >= 1440px wide */
@media(min-width:1440px){
  .dkf-vessel{padding:0 40px}
  .dkf-landing-header{gap:56px}
}

/* === BREADCRUMBS === */
.dkf-crumb-trail{padding:14px 0;background:var(--dkf-bg-alt);border-bottom:1px solid var(--dkf-line)}
.dkf-crumb-trail ol{max-width:var(--dkf-wrap);margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:8px;list-style:none;font-size:.85rem}
.dkf-crumb-trail li{display:flex;align-items:center;gap:8px;color:var(--dkf-ink-muted)}
.dkf-crumb-trail li+li::before{content:'>';color:var(--dkf-line);font-size:.75rem}
.dkf-crumb-trail a{color:var(--dkf-blue);font-weight:500}
.dkf-crumb-trail a:hover{color:var(--dkf-blue-hov)}
.dkf-crumb-trail [aria-current="page"]{color:var(--dkf-ink);font-weight:600}

/* === PRINT === */
@media print{
  .dkf-masthead,.dkf-mobile-overlay,.dkf-shop-button,.dkf-section-index{display:none}
  body{font-size:11pt;color:#000}
  .dkf-review-module,.dkf-primer-block{border:none;padding:16px 0}
}