/* Kerassentials — kerasential.co */
:root{
  --brand:#211D50;
  --brand-dark:#120F30;
  --accent:#2BB3A0;
  --accent-dark:#1E8F80;
  --cta:#FFC93C;
  --cta-dark:#F2B705;
  --tint:#F3F6FB;
  --tint-2:#EEF8F6;
  --text:#000000;
  --muted:#3A3A3A;
  --line:#E2E6EF;
  --radius:14px;
  --shadow:0 8px 28px rgba(33,29,80,.10);
  --serif:'Libre Baskerville',Georgia,'Times New Roman',serif;
  --sans:'Source Sans 3','Segoe UI',Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{background:#fff;color:var(--text);font-family:var(--sans);font-size:20px;line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand)}
p{margin-bottom:1em}
ul,ol{margin:0 0 1em 1.2em}
li{margin-bottom:.4em}
strong{font-weight:700}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}
.narrow{max-width:900px}
h1,h2,h3,h4{font-family:var(--serif);color:var(--brand);line-height:1.3}
h3{font-size:1.3rem;margin:1.2em 0 .5em}
h4{font-size:1.05rem;margin:.8em 0 .4em}
.icon{width:28px;height:28px;flex:0 0 auto;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ===== Top bar ===== */
.topbar{position:sticky;top:0;z-index:100;background:var(--brand);color:#fff;box-shadow:0 2px 12px rgba(0,0,0,.18)}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.logo{font-family:var(--serif);font-size:1.45rem;font-weight:700;color:#fff;text-decoration:none;letter-spacing:.5px;display:flex;align-items:center;gap:10px}
.logo img{width:34px;height:34px;border-radius:50%;background:#fff}
.nav{display:flex;align-items:center;gap:26px}
.nav a{color:#fff;text-decoration:none;font-size:1rem;font-weight:600;opacity:.92}
.nav a:hover{opacity:1;text-decoration:underline}
.top-actions{display:flex;align-items:center;gap:10px}
.menu-toggle{display:none;background:transparent;border:0;cursor:pointer;width:44px;height:44px;border-radius:8px;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.menu-toggle span{display:block;width:24px;height:3px;background:#fff;border-radius:2px;transition:.25s}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
.mobile-nav{display:none;background:var(--brand-dark)}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;color:#fff;text-decoration:none;padding:14px 20px;border-top:1px solid rgba(255,255,255,.1);font-weight:600}

/* ===== Buttons ===== */
.btn{display:inline-block;text-align:center;text-decoration:none;font-family:var(--sans);font-weight:800;border-radius:50px;transition:transform .15s,box-shadow .15s,background .15s;cursor:pointer;line-height:1.2}
.btn:hover{transform:translateY(-2px)}
.btn-cta{background:var(--cta);color:#111;padding:18px 38px;font-size:1.15rem;box-shadow:0 8px 20px rgba(242,183,5,.35)}
.btn-cta:hover{background:var(--cta-dark)}
.btn-sm{padding:10px 20px;font-size:.95rem;background:var(--cta);color:#111}
.btn-ghost{background:#fff;color:var(--brand);border:2px solid var(--brand);padding:16px 30px;font-size:1.05rem}
.btn-block{display:block;width:100%}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px}
.center{text-align:center}
.cta-note{font-size:.9rem;color:var(--muted);margin-top:10px}

/* ===== H1 band + hero ===== */
.h1-band{background:var(--tint);border-bottom:1px solid var(--line);padding:28px 0}
.h1-band h1{font-size:2.1rem;text-align:center;max-width:1000px;margin:0 auto}
.hero{padding:40px 0 30px}
.hero-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:44px;align-items:center}
.hero-img img{width:100%;max-width:500px;margin:0 auto;animation:float 5s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.lede{font-size:1.1em}
.check-list{list-style:none;margin:0 0 1em}
.check-list li{position:relative;padding-left:34px}
.check-list li::before{content:"";position:absolute;left:0;top:7px;width:22px;height:22px;border-radius:50%;background:var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/14px no-repeat}

/* ===== Trust ===== */
.badges{padding:10px 0 20px}
.badges img{max-width:760px;width:100%;margin:0 auto}
.trust-strip{background:var(--tint-2);padding:26px 0}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.trust-item{display:flex;align-items:center;gap:12px;background:#fff;border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);font-weight:700;font-size:1rem;color:var(--brand)}
.trust-item .icon{color:var(--accent);width:34px;height:34px}

/* ===== Sections ===== */
.section{padding:0 0 60px}
.section.alt{background:var(--tint)}
.q-band{background:var(--brand);padding:26px 0;margin-bottom:40px}
.q-band h2{color:#fff;font-size:1.9rem;text-align:center;margin:0}
.answer-box{background:#fff;border-left:5px solid var(--accent);border-radius:10px;padding:18px 22px;box-shadow:var(--shadow);margin-bottom:26px}
.alt .answer-box{background:#fff}
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:center}
.split img{width:100%;max-width:460px;margin:0 auto}
.split.reverse{grid-template-columns:1.1fr .9fr}

/* steps */
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin:26px 0}
.step{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);position:relative}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800;font-family:var(--sans);margin-bottom:8px}
.step h3{margin-top:0}

/* benefit cards */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:26px 0}
.card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.card .icon-wrap{width:58px;height:58px;border-radius:50%;background:var(--tint-2);display:flex;align-items:center;justify-content:center;color:var(--accent);margin-bottom:10px}
.card .icon-wrap .icon{width:30px;height:30px}
.card h3{margin-top:0;font-size:1.18rem}
.card p{margin:0}

/* ingredients */
.ing{background:#fff;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);margin-bottom:22px}
.ing-head{display:flex;align-items:center;gap:14px}
.ing-head .icon-wrap{width:52px;height:52px;border-radius:50%;background:var(--tint-2);display:flex;align-items:center;justify-content:center;color:var(--accent);flex:0 0 auto}
.ing-head h3{margin:0}
.research{background:var(--tint);border-radius:10px;padding:14px 18px;margin-top:12px}
.research h4{margin-top:0}
.research p{margin:0;font-size:1em}
.ing-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}

/* pricing */
.offer-banner{width:100%;max-width:760px;margin:0 auto 26px}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{background:#fff;border-radius:18px;box-shadow:var(--shadow);padding:0 0 26px;text-align:center;display:flex;flex-direction:column;overflow:hidden;border:2px solid transparent}
.price-card.best{border-color:var(--accent);transform:scale(1.03)}
.price-tag{background:var(--brand);color:#fff;font-weight:800;padding:10px;font-size:1rem;letter-spacing:.5px}
.best .price-tag{background:var(--accent)}
.price-card h3{margin:16px 0 0;font-size:1.6rem}
.supply{color:var(--muted);font-weight:600;font-size:1rem}
.price-card img{height:220px;width:auto;max-width:90%;object-fit:contain;margin:14px auto}
.price{font-family:var(--sans);font-size:2.4rem;font-weight:800;color:var(--brand);line-height:1}
.price s{font-size:1.2rem;color:#888;font-weight:600;margin-right:8px}
.ship{font-size:.95rem;font-weight:700;margin:8px 0 4px}
.extras{font-size:.95rem;color:var(--accent-dark);font-weight:700;min-height:1.5em;margin-bottom:12px}
.price-card .btn{margin:auto 22px 0;width:auto}
.secure{font-size:.85rem;color:var(--muted);margin-top:10px}
.rating-strip{margin:34px auto 0;max-width:640px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:18px 24px;display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;text-align:center}
.stars{color:#F5A623;font-size:1.6rem;letter-spacing:3px}
.rating-strip p{margin:0;font-weight:700;color:var(--brand)}

/* bonuses */
.bonus-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.bonus{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);border-top:5px solid var(--accent)}
.bonus .label{display:inline-block;background:var(--brand);color:#fff;border-radius:30px;padding:3px 14px;font-size:.85rem;font-weight:800;margin-bottom:8px}
.bonus h3{margin-top:4px;font-size:1.15rem}
.bonus .val{font-weight:800;color:var(--accent-dark)}

/* reviews */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.review-top img{width:64px;height:64px;border-radius:50%;object-fit:cover}
.review-top strong{display:block;color:var(--brand)}
.verified{font-size:.85rem;color:var(--accent-dark);font-weight:700}
.review p{margin:0;font-style:italic}
.small-note{font-size:.9rem;color:var(--muted);margin-top:18px;text-align:center}

/* pros cons */
.pc-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.pc{background:#fff;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.pc h3{margin-top:0}
.pc ul{list-style:none;margin:0}
.pc li{padding-left:34px;position:relative}
.pc li::before{position:absolute;left:0;top:0;font-weight:900;font-size:1.2rem}
.pros li::before{content:"\2714";color:#1E9E5A}
.cons li::before{content:"\2716";color:#D23B3B}

/* guarantee */
.guarantee-box{display:grid;grid-template-columns:260px 1fr;gap:36px;align-items:center;background:#fff;border-radius:18px;box-shadow:var(--shadow);padding:34px}
.guarantee-box img{width:100%;max-width:260px}

/* how to use */
.use-list{counter-reset:u;list-style:none;margin:0}
.use-list li{counter-increment:u;position:relative;padding-left:52px;margin-bottom:16px}
.use-list li::before{content:counter(u);position:absolute;left:0;top:2px;width:36px;height:36px;border-radius:50%;background:var(--accent);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:1rem}

/* FAQ */
.faq details{background:#fff;border-radius:12px;box-shadow:var(--shadow);margin-bottom:14px;overflow:hidden}
.faq summary{cursor:pointer;list-style:none;padding:18px 54px 18px 22px;font-weight:700;color:var(--brand);position:relative;font-size:1em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:1.6rem;color:var(--accent)}
.faq details[open] summary::after{content:"\2212"}
.faq details > div{padding:0 22px 18px}
.faq details > div p:last-child{margin:0}

/* references */
.refs{columns:2;column-gap:36px;margin:0 0 0 1.2em;font-size:.95em}
.refs li{break-inside:avoid}

/* final CTA */
.final-cta{background:var(--brand);color:#fff;padding:60px 0;text-align:center}
.final-cta h2{color:#fff;font-size:2rem;margin-bottom:14px}
.final-cta p{color:#fff;max-width:760px;margin:0 auto 18px}
.final-cta img{max-width:520px;width:100%;margin:10px auto 26px}
.final-cta .cta-note{color:#d9d8ee}

/* pre-footer */
.prefooter{background:var(--tint);padding:46px 0;border-top:1px solid var(--line)}
.prefooter-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:40px}
.prefooter h2{font-size:1.5rem;margin-bottom:10px}
.prefooter h3{margin-top:0;font-size:1.2rem}
.prefooter ul{list-style:none;margin:0;columns:2}
.prefooter a{text-decoration:none;font-weight:600}
.prefooter a:hover{text-decoration:underline}

/* footer */
.footer{background:var(--brand-dark);color:#cfcde6;padding:40px 0 30px;font-size:.92rem;line-height:1.6}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 26px;margin-bottom:24px}
.footer-links a{color:#fff;text-decoration:none;font-weight:700;font-size:1rem}
.footer-links a:hover{text-decoration:underline}
.footer p{margin-bottom:12px}
.footer a{color:#fff}
.copy{text-align:center;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;margin-top:18px}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .nav{gap:18px}
  .card-grid,.bonus-grid,.review-grid{grid-template-columns:repeat(2,1fr)}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .nav{display:none}
  .menu-toggle{display:flex}
  .h1-band h1{font-size:1.6rem}
  .hero-grid,.split,.split.reverse,.guarantee-box,.prefooter-grid,.pc-grid,.ing-grid{grid-template-columns:1fr}
  .hero{padding-top:24px}
  .hero-img{order:-1}
  .split .media{order:-1}
  .price-grid{grid-template-columns:1fr;max-width:440px;margin:0 auto}
  .price-card.best{transform:none;order:-1}
  .steps{grid-template-columns:1fr}
  .guarantee-box{text-align:center}
  .guarantee-box img{margin:0 auto}
  .refs{columns:1}
  .q-band h2{font-size:1.5rem}
}
@media (max-width:600px){
  .container{padding:0 16px}
  .logo{font-size:1.15rem}
  .logo img{width:28px;height:28px}
  .btn-sm{padding:9px 14px;font-size:.88rem}
  .card-grid,.bonus-grid,.review-grid,.trust-grid{grid-template-columns:1fr}
  .btn-cta{width:100%;padding:17px 20px}
  .btn-ghost{width:100%}
  .q-band{padding:20px 0;margin-bottom:30px}
  .q-band h2{font-size:1.35rem}
  .final-cta h2{font-size:1.5rem}
  .prefooter ul{columns:1}
  .guarantee-box{padding:24px}
}

/* ===== Inner pages ===== */
.breadcrumb{background:#fff;border-bottom:1px solid var(--line);font-size:.9em;padding:10px 0}
.breadcrumb a{text-decoration:none;font-weight:600}
.breadcrumb span{color:var(--muted)}
.page-intro{padding:40px 0 50px}
.page-intro-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start}
.page-intro-img img{width:100%;max-width:440px;margin:0 auto}
.toc{background:var(--tint);border-radius:var(--radius);padding:20px 24px;margin-top:10px}
.toc-title{font-family:var(--serif);font-weight:700;color:var(--brand);margin-bottom:8px}
.toc ol{margin:0 0 0 1.2em}
.toc li{margin-bottom:.25em}
.toc a{text-decoration:none;font-weight:600}
.toc a:hover{text-decoration:underline}
.page-fig{margin:28px auto}
.page-fig img{width:100%;max-width:560px;margin:0 auto;border-radius:12px}
.table-wrap{width:100%;overflow-x:auto;margin:20px 0 26px;-webkit-overflow-scrolling:touch}
.data-table{width:100%;border-collapse:collapse;background:#fff;box-shadow:var(--shadow);border-radius:12px;overflow:hidden;font-size:.9em;min-width:520px}
.data-table th{background:var(--brand);color:#fff;text-align:left;padding:12px 14px;font-family:var(--sans)}
.data-table td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.data-table tr:nth-child(even) td{background:var(--tint)}
.callout{background:var(--tint-2);border-radius:12px;padding:18px 22px;margin:22px 0}
.callout p:last-child{margin:0}
.legal{padding:40px 0 60px}
.legal h2{font-size:1.45rem;margin:1.4em 0 .5em}
.legal h3{font-size:1.15rem}
.updated{color:var(--muted);font-size:.9em}
.back-home{margin-top:30px;font-weight:700}
.back-home a{text-decoration:none}
.legal-links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 22px;margin:-8px 0 22px;font-size:.92rem}
.legal-links a{color:#cfcde6;text-decoration:none}
.legal-links a:hover{color:#fff;text-decoration:underline}
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin:24px 0}
@media (max-width:860px){
  .page-intro-grid,.contact-grid{grid-template-columns:1fr}
  .page-intro{padding-top:24px}
}
.byline{text-align:center;color:var(--muted);font-size:.9em;margin:10px 0 0}
.verdict{background:var(--brand);color:#fff;border-radius:var(--radius);padding:22px 26px;margin:22px 0}
.verdict h3{color:#fff;margin-top:0}
.verdict p:last-child{margin:0}

/* Rounded corners on all content images */
main img{border-radius:16px}
.review-top img{border-radius:50%}