/* ============ Lumera — CeraVe Night Cream Landing Page ============ */
:root{
  --purple:#5a2d9e;
  --purple-dark:#43237a;
  --purple-light:#f3edfb;
  --accent:#ffb400;
  --ink:#1f1633;
  --muted:#6b6480;
  --green:#1faa59;
  --bg:#ffffff;
  --radius:14px;
  --shadow:0 10px 30px rgba(67,35,122,.12);
  --maxw:1120px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Hind Siliguri',system-ui,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  font-size:16px;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 18px}
.container.narrow{max-width:760px}

/* ---- Buttons ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--purple);color:#fff;font-weight:600;
  padding:12px 22px;border-radius:50px;border:none;cursor:pointer;
  font-family:inherit;font-size:16px;transition:transform .15s ease,background .2s ease;
  box-shadow:0 6px 18px rgba(90,45,158,.3);
}
.btn:hover{background:var(--purple-dark);transform:translateY(-2px)}
.btn-lg{padding:15px 30px;font-size:18px}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn-outline{background:#fff;color:var(--purple);border:2px solid var(--purple);box-shadow:none}
.btn-outline:hover{background:var(--purple-light);color:var(--purple-dark)}

/* ---- Top bar ---- */
.topbar{
  background:var(--purple-dark);color:#fff;font-size:13.5px;
  display:flex;justify-content:center;gap:18px;flex-wrap:wrap;
  padding:7px 14px;text-align:center;
}
.topbar-timer strong{color:var(--accent);font-variant-numeric:tabular-nums}

/* ---- Header ---- */
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.95);
  backdrop-filter:blur(8px);border-bottom:1px solid #eee;}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 18px}
.brand{font-family:'Poppins',sans-serif;font-weight:800;font-size:26px;color:var(--purple);letter-spacing:-.5px}
.brand span{color:var(--accent)}

/* ---- Hero ---- */
.hero{background:linear-gradient(160deg,#faf7ff 0%,#f3edfb 100%);padding:40px 0 50px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.pill{display:inline-block;background:#fff;color:var(--purple);font-weight:600;font-size:13px;
  padding:6px 14px;border-radius:50px;box-shadow:var(--shadow);margin-bottom:16px}
.hero h1{font-size:40px;line-height:1.2;font-weight:700;margin-bottom:14px}
.hero .hl{color:var(--purple);background:linear-gradient(180deg,transparent 60%,#ffe9a8 60%)}
.lead{font-size:17px;color:var(--muted);margin-bottom:18px}
.hero-points{list-style:none;display:grid;gap:7px;margin-bottom:20px}
.hero-points li{font-weight:500}
.hero-price{display:flex;align-items:center;gap:12px;margin-bottom:22px;flex-wrap:wrap}
.old-price{color:var(--muted);text-decoration:line-through;font-size:20px}
.new-price{color:var(--purple);font-weight:800;font-size:34px;font-family:'Poppins',sans-serif}
.save-badge{background:var(--green);color:#fff;font-weight:600;font-size:13px;padding:4px 10px;border-radius:6px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.trust-row{display:flex;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:14px}
.hero-media img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%}

/* ---- Trust strip ---- */
.trust-strip{background:var(--purple);color:#fff;padding:22px 0}
.trust-strip-grid{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;gap:14px}
.trust-strip-grid strong{display:block;font-size:26px;font-family:'Poppins',sans-serif}
.trust-strip-grid span{font-size:13.5px;opacity:.9}

/* ---- Sections ---- */
.section{padding:56px 0}
.section-alt{background:var(--purple-light)}
.section-title{text-align:center;font-size:30px;font-weight:700;margin-bottom:8px}
.section-sub{text-align:center;color:var(--muted);margin-bottom:34px;font-size:16px}

.cards-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}

.feature-card,.ingredient,.review{
  background:#fff;border-radius:var(--radius);padding:24px 20px;text-align:center;
  box-shadow:var(--shadow);transition:transform .2s ease;
}
.feature-card:hover,.ingredient:hover{transform:translateY(-4px)}
.feature-card .ico{font-size:34px;margin-bottom:10px}
.feature-card h3,.ingredient h3{font-size:18px;margin-bottom:6px}
.feature-card p,.ingredient p{color:var(--muted);font-size:14.5px}
.ingredient .num{width:52px;height:52px;margin:0 auto 10px;border-radius:50%;
  background:var(--purple);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:24px;font-weight:700;font-family:'Poppins',sans-serif}

/* ---- Result ---- */
.result-card{max-width:680px;margin:0 auto}
.result-card img{border-radius:var(--radius);box-shadow:var(--shadow)}

/* ---- How to use ---- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{background:#fff;border-radius:var(--radius);padding:22px;text-align:center;box-shadow:var(--shadow)}
.step span{width:44px;height:44px;margin:0 auto 12px;border-radius:50%;
  background:var(--accent);color:#3a2a00;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:20px}
.step p{color:var(--muted);font-size:14.5px}

/* ---- Reviews ---- */
.review{text-align:left}
.review .stars{color:var(--accent);font-size:18px;margin-bottom:8px}
.review p{font-size:15px;margin-bottom:10px}
.reviewer{font-weight:600;color:var(--purple)}

/* ---- Order ---- */
.order-section{background:linear-gradient(160deg,#faf7ff,#f3edfb)}
.order-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:24px;max-width:920px;margin:0 auto;align-items:start}
.order-form{background:#fff;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;margin-bottom:6px;font-size:15px}
.field label span{color:#e23b3b}
.field input,.field textarea,.field select{
  width:100%;padding:12px 14px;border:1.5px solid #ddd6ea;border-radius:10px;
  font-family:inherit;font-size:15.5px;background:#fcfbff;transition:border .15s;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--purple)}
.field textarea{resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.radio-row{display:flex;gap:18px;flex-wrap:wrap}
.radio{font-weight:500;display:flex;align-items:center;gap:7px;cursor:pointer}
.err{color:#e23b3b;font-size:13px;display:block;margin-top:4px;min-height:1px}
.form-note{text-align:center;color:var(--muted);font-size:13.5px;margin-top:12px}
.field-hint{display:block;color:var(--green);font-size:12.5px;margin-top:5px}
.input-invalid{border-color:#e23b3b !important;background:#fff6f6 !important}

.order-summary{background:var(--purple);color:#fff;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);position:sticky;top:80px}
.order-summary h3{margin-bottom:16px;font-size:20px}
.sum-row{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px solid rgba(255,255,255,.18);font-size:15.5px}
.sum-row.total{font-weight:700;font-size:19px;border-bottom:none;margin-top:4px}
.guarantee{list-style:none;margin-top:18px;display:grid;gap:7px;font-size:14px;opacity:.95}

/* ---- FAQ ---- */
.faq details{background:#fff;border-radius:10px;padding:14px 18px;margin-bottom:10px;box-shadow:var(--shadow)}
.faq summary{font-weight:600;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';float:right;color:var(--purple);font-weight:700}
.faq details[open] summary::after{content:'–'}
.faq details p{color:var(--muted);margin-top:10px}

/* ---- Footer ---- */
.site-footer{background:var(--ink);color:#d9d2ea;text-align:center;padding:40px 0 30px}
.brand-foot{color:#fff;margin-bottom:10px}
.site-footer p{font-size:14.5px;margin:4px 0}
.foot-contact a{color:var(--accent)}
.copyright{opacity:.6;font-size:13px;margin-top:14px}

/* ---- Sticky mobile CTA ---- */
.sticky-cta{display:none;position:fixed;bottom:0;left:0;right:0;z-index:50;
  background:var(--purple);color:#fff;text-align:center;font-weight:700;
  padding:15px;box-shadow:0 -4px 16px rgba(0,0,0,.18)}

/* ---- Modal ---- */
.modal{display:none;position:fixed;inset:0;z-index:100;background:rgba(31,22,51,.6);
  align-items:center;justify-content:center;padding:20px}
.modal.show{display:flex}
.modal-box{background:#fff;border-radius:18px;padding:34px 28px;text-align:center;max-width:380px;width:100%}
.modal-box .check{width:70px;height:70px;margin:0 auto 16px;border-radius:50%;
  background:var(--green);color:#fff;font-size:38px;display:flex;align-items:center;justify-content:center}
.modal-box h3{margin-bottom:10px}
.modal-box p{color:var(--muted);margin-bottom:20px}

/* ============ RESPONSIVE ============ */
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;text-align:center}
  .hero-points{justify-items:center}
  .hero-cta,.trust-row,.hero-price{justify-content:center}
  .hero-media{order:-1;max-width:420px;margin:0 auto}
  .cards-4,.steps{grid-template-columns:repeat(2,1fr)}
  .order-grid{grid-template-columns:1fr}
  .order-summary{position:static;order:-1}
}
@media(max-width:560px){
  .hero h1{font-size:30px}
  .section-title{font-size:24px}
  .section{padding:44px 0}
  .cards-3{grid-template-columns:1fr}
  .trust-strip-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .field-row{grid-template-columns:1fr}
  .sticky-cta{display:block}
  body{padding-bottom:60px}
  .topbar{font-size:12px;gap:10px}
}