/* =========================================================
   Prostalis · Biotona — Landing styles
   Architecture: BEM + utility helpers
   Palette: light + saturated blue + deep navy
   ========================================================= */

:root{
  --brand:        #123A6B;   /* deep navy */
  --brand-alt:    #1E5BAB;   /* saturated blue */
  --highlight:    #58B6E5;   /* light sky blue */
  --ink:          #0F1F33;
  --ink-soft:     #44546C;
  --line:         #DDE7F3;
  --bg:           #F6F9FD;
  --bg-soft:      #EEF4FB;
  --white:        #FFFFFF;
  --cta:          #1E5BAB;
  --cta-hover:    #123A6B;
  --ok:           #2BB385;
  --shadow-sm:    0 4px 16px rgba(18,58,107,.06);
  --shadow-md:    0 12px 40px rgba(18,58,107,.10);
  --shadow-lg:    0 24px 60px rgba(18,58,107,.14);
  --radius-sm:    10px;
  --radius:       16px;
  --radius-lg:    22px;
  --radius-xl:    28px;
  --pad-y:        80px;
  --pad-y-sm:     56px;
  --maxw:         1180px;
  --font-display: 'DM Sans', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-alt);text-decoration:none}
a:hover{color:var(--brand)}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:700;
  color:var(--brand);
  line-height:1.2;
  margin:0 0 .5em;
  letter-spacing:-.01em;
}
h1{font-size:clamp(2rem,4vw + .5rem,3.25rem)}
h2{font-size:clamp(1.6rem,2.2vw + .6rem,2.4rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}

/* ----- layout ----- */
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:var(--pad-y) 0}
.section--soft{background:var(--bg)}
.section--cta{background:linear-gradient(135deg,var(--brand) 0%,var(--brand-alt) 100%);color:var(--white)}
.section--cta h2,.section--cta h3{color:var(--white)}

.section__head{text-align:center;max-width:760px;margin:0 auto 48px}
.section__head--left{text-align:left;margin-left:0}
.section__sub{color:var(--ink-soft);font-size:1.05rem}

.eyebrow{
  display:inline-block;
  padding:6px 14px;
  border-radius:999px;
  background:var(--bg-soft);
  color:var(--brand-alt);
  font-size:.78rem;
  font-weight:600;
  letter-spacing:.06em;
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow--light{background:rgba(255,255,255,.15);color:#fff}
.accent{color:var(--brand-alt);position:relative}
.accent::after{
  content:"";
  position:absolute;left:0;right:0;bottom:.04em;height:.18em;
  background:var(--highlight);opacity:.4;z-index:-1;border-radius:6px;
}

/* ----- buttons ----- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;
  border-radius:999px;
  font-family:var(--font-body);
  font-weight:600;
  font-size:.95rem;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .15s, background .2s, color .2s, box-shadow .2s;
  text-align:center;
}
.btn--primary{background:var(--cta);color:#fff;box-shadow:0 8px 22px rgba(30,91,171,.28)}
.btn--primary:hover{background:var(--cta-hover);color:#fff;transform:translateY(-1px)}
.btn--ghost{background:transparent;color:var(--brand);border-color:transparent}
.btn--ghost:hover{background:var(--bg-soft);color:var(--brand)}
.btn--outline{background:transparent;color:var(--brand);border-color:var(--line)}
.btn--outline:hover{border-color:var(--brand-alt);color:var(--brand-alt)}
.btn--lg{padding:15px 28px;font-size:1rem}
.btn--sm{padding:9px 16px;font-size:.85rem}
.btn--block{display:flex;width:100%}

.section--cta .btn--ghost{color:#fff}
.section--cta .btn--ghost:hover{background:rgba(255,255,255,.12);color:#fff}

/* =========================================================
   TOPBAR
   ========================================================= */
.topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar__inner{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--brand)}
.brand:hover{color:var(--brand)}
.brand__mark{display:inline-flex;border-radius:12px;overflow:hidden}
.brand__text{display:flex;flex-direction:column;line-height:1}
.brand__text strong{font-family:var(--font-display);font-size:1.15rem;font-weight:700}
.brand__text em{font-style:normal;font-size:.72rem;color:var(--ink-soft);margin-top:2px}

.nav{margin-left:auto;display:flex;gap:26px}
.nav a{color:var(--ink);font-size:.93rem;font-weight:500}
.nav a:hover{color:var(--brand-alt)}
.topbar__cta{margin-left:8px}

.burger{display:none;background:none;border:0;width:42px;height:42px;flex-direction:column;gap:5px;justify-content:center;align-items:center;cursor:pointer}
.burger span{display:block;width:24px;height:2px;background:var(--brand);border-radius:2px;transition:.2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.topbar__drawer{
  display:none;flex-direction:column;gap:14px;padding:16px 24px 22px;
  background:#fff;border-bottom:1px solid var(--line);
}
.topbar__drawer.is-open{display:flex}
.topbar__drawer a{color:var(--ink);font-weight:500}

/* =========================================================
   HERO
   ========================================================= */
.hero{
  padding:72px 0 84px;
  background:
    radial-gradient(800px 380px at 90% 0%, rgba(88,182,229,.18), transparent 60%),
    linear-gradient(180deg,var(--bg-soft) 0%, #fff 100%);
}
.hero__grid{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.hero__title{margin-bottom:18px}
.hero__lede{color:var(--ink-soft);font-size:1.12rem;max-width:540px}
.hero__points{list-style:none;padding:0;margin:18px 0 28px;display:grid;gap:10px}
.hero__points li{display:flex;align-items:center;gap:10px;font-weight:500;color:var(--ink)}
.dot{width:10px;height:10px;border-radius:50%;background:var(--highlight);flex-shrink:0;box-shadow:0 0 0 4px rgba(88,182,229,.2)}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}
.hero__assure{display:flex;gap:28px;flex-wrap:wrap;padding-top:24px;border-top:1px dashed var(--line)}
.hero__assure-item{display:flex;flex-direction:column;font-size:.88rem;color:var(--ink-soft)}
.hero__assure-item strong{color:var(--brand);font-family:var(--font-display);font-size:1rem;margin-bottom:2px}

.hero__visual{position:relative}
.hero__visual img{
  border-radius:var(--radius-xl);
  aspect-ratio:5/6;
  object-fit:cover;
  width:100%;
  box-shadow:var(--shadow-lg);
}
.hero__badge{
  position:absolute;left:-16px;bottom:32px;
  background:#fff;border-radius:var(--radius);
  padding:14px 20px;box-shadow:var(--shadow-md);
  display:flex;flex-direction:column;line-height:1.2;
  border:1px solid var(--line);
}
.hero__badge span{font-size:.78rem;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.05em}
.hero__badge strong{font-family:var(--font-display);font-size:1.25rem;color:var(--brand)}

/* =========================================================
   STRIP
   ========================================================= */
.strip{background:var(--brand);color:#fff;padding:28px 0}
.strip__row{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.strip__item{display:flex;flex-direction:column;align-items:center;text-align:center;flex:1;min-width:130px}
.strip__num{font-family:var(--font-display);font-size:1.5rem;font-weight:700;color:var(--highlight)}
.strip__lbl{font-size:.85rem;color:rgba(255,255,255,.85);margin-top:4px;max-width:200px}
.strip__sep{width:1px;height:36px;background:rgba(255,255,255,.18)}

/* =========================================================
   CARDS GRID — equal heights, aligned
   ========================================================= */
.cards{
  display:grid;
  gap:24px;
  align-items:stretch;
}
.cards--3{grid-template-columns:repeat(3,1fr)}

.card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px;
  transition:transform .2s, box-shadow .2s, border-color .2s;
  box-shadow:var(--shadow-sm);
  height:100%;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cfdcef}
.card__icon{
  width:54px;height:54px;border-radius:14px;
  background:linear-gradient(135deg,var(--bg-soft),#fff);
  color:var(--brand-alt);
  display:inline-flex;align-items:center;justify-content:center;
  margin-bottom:18px;
  border:1px solid var(--line);
}
.card h3{margin-bottom:8px;font-size:1.1rem}
.card p{color:var(--ink-soft);margin:0;flex-grow:1}

/* media cards */
.card--media{padding:0;overflow:hidden}
.card__img{aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft)}
.card__img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.card--media:hover .card__img img{transform:scale(1.04)}
.card__body{padding:24px 26px 28px;display:flex;flex-direction:column;flex-grow:1}
.card__body h3{margin-bottom:8px;font-size:1.1rem}
.card__body p{color:var(--ink-soft);margin:0}

/* =========================================================
   PRODUCT
   ========================================================= */
.product{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:center}
.product__media{position:relative;text-align:center}
.product__media img{
  max-width:380px;width:100%;margin:0 auto;
  filter:drop-shadow(0 30px 50px rgba(18,58,107,.18));
}
.product__chip{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);color:#fff;
  padding:10px 18px;border-radius:999px;
  font-weight:600;font-size:.92rem;
  margin-top:18px;
  box-shadow:var(--shadow-md);
}
.ticks{list-style:none;padding:0;margin:0 0 26px;display:grid;gap:12px}
.ticks li{position:relative;padding-left:30px;color:var(--ink)}
.ticks li::before{
  content:"";position:absolute;left:0;top:6px;
  width:18px;height:18px;border-radius:50%;
  background:var(--highlight) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23fff'><path d='M20 6L9 17l-5-5l-1.4 1.4L9 19.8L21.4 7.4z'/></svg>") center/12px no-repeat;
}
.product__cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.note{font-size:.85rem;color:var(--ink-soft);font-style:italic;border-left:3px solid var(--highlight);padding-left:14px}

/* =========================================================
   STEPS
   ========================================================= */
.steps{
  list-style:none;padding:0;margin:0;
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  counter-reset:step;
}
.steps__item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:32px 28px;
  position:relative;
  box-shadow:var(--shadow-sm);
}
.steps__num{
  font-family:var(--font-display);
  font-weight:700;font-size:1rem;
  color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand-alt),var(--highlight));
  margin-bottom:18px;
}
.steps__item h3{margin-bottom:8px}
.steps__item p{color:var(--ink-soft);margin:0}

/* =========================================================
   TRUST BLOCK
   ========================================================= */
.trust__grid{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:start}
.trust__card{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-alt) 100%);
  color:#fff;border-radius:var(--radius-xl);
  padding:36px 32px;box-shadow:var(--shadow-lg);
}
.trust__card h3{color:#fff;margin-bottom:18px;font-size:1.25rem}
.trust__dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:8px 18px}
.trust__dl dt{font-weight:600;color:var(--highlight);font-size:.85rem;text-transform:uppercase;letter-spacing:.04em}
.trust__dl dd{margin:0;color:rgba(255,255,255,.92);font-size:.95rem}
.trust__dl a{color:#fff;text-decoration:underline;text-decoration-color:rgba(255,255,255,.4)}
.trust__dl a:hover{color:var(--highlight)}

/* =========================================================
   REVIEWS
   ========================================================= */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.review{
  background:#fff;border-radius:var(--radius-lg);
  padding:28px;border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;height:100%;
}
.review__stars{color:#f5a623;font-size:1.1rem;letter-spacing:2px;margin-bottom:12px}
.review__text{color:var(--ink);margin:0 0 18px;flex-grow:1;font-size:.97rem}
.review__foot{display:flex;flex-direction:column;border-top:1px solid var(--line);padding-top:14px}
.review__who{font-family:var(--font-display);font-weight:700;color:var(--brand)}
.review__meta{font-size:.85rem;color:var(--ink-soft);margin-top:2px}

/* =========================================================
   FAQ
   ========================================================= */
.faq{max-width:880px;margin:0 auto}
.faq__list{display:grid;gap:12px}
.faq__item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:4px 24px;transition:border-color .2s, box-shadow .2s;
}
.faq__item[open]{border-color:var(--highlight);box-shadow:var(--shadow-sm)}
.faq__item summary{
  list-style:none;cursor:pointer;
  padding:18px 0;font-weight:600;color:var(--brand);
  font-family:var(--font-display);font-size:1.02rem;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{
  content:"+";font-size:1.4rem;color:var(--brand-alt);
  transition:transform .2s;flex-shrink:0;
}
.faq__item[open] summary::after{content:"−"}
.faq__item p{padding:0 0 18px;color:var(--ink-soft);margin:0}

/* =========================================================
   ORDER
   ========================================================= */
.order{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.order__copy h2{color:#fff}
.order__copy p{color:rgba(255,255,255,.9);font-size:1.05rem;max-width:480px}
.order__points{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:10px}
.order__points li{
  position:relative;padding-left:26px;color:#fff;
}
.order__points li::before{
  content:"✓";position:absolute;left:0;top:0;
  color:var(--highlight);font-weight:700;font-size:1.1rem;
}
.order__points strong{color:var(--highlight);font-weight:700}

.order__form{
  background:#fff;color:var(--ink);
  border-radius:var(--radius-xl);
  padding:36px;box-shadow:var(--shadow-lg);
}
.order__form h3{color:var(--brand);margin-bottom:18px;font-size:1.35rem}
.field{display:flex;flex-direction:column;margin-bottom:14px}
.field>span{font-size:.85rem;font-weight:500;color:var(--ink);margin-bottom:6px}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"]{
  border:1.5px solid var(--line);
  border-radius:12px;
  padding:13px 16px;
  font-family:inherit;font-size:.95rem;color:var(--ink);
  background:var(--bg);
  transition:border-color .15s, background .15s;
}
.field input:focus{outline:none;border-color:var(--brand-alt);background:#fff}
.field input:invalid:not(:placeholder-shown){border-color:#d0697b}
.field--check{flex-direction:row;align-items:flex-start;gap:10px;font-size:.85rem;color:var(--ink-soft);margin:6px 0 18px}
.field--check input{margin-top:3px;accent-color:var(--brand-alt)}
.field--check span{margin:0}
.order__legal{font-size:.8rem;color:var(--ink-soft);text-align:center;margin:14px 0 0}

/* =========================================================
   FOOTER
   ========================================================= */
.foot{background:var(--brand);color:rgba(255,255,255,.85);padding:60px 0 0}
.foot__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.foot h4{color:#fff;font-size:1rem;margin-bottom:14px;font-family:var(--font-display)}
.foot__about{font-size:.92rem;line-height:1.7;color:rgba(255,255,255,.78);max-width:340px;margin-top:14px}
.foot__list{list-style:none;padding:0;margin:0;display:grid;gap:8px;font-size:.92rem}
.foot__list a{color:rgba(255,255,255,.85)}
.foot__list a:hover{color:var(--highlight)}
.brand--foot .brand__text strong{color:#fff}
.brand--foot .brand__text em{color:rgba(255,255,255,.7)}
.foot__bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0}
.foot__bottom-row{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:.82rem;color:rgba(255,255,255,.7)}

/* =========================================================
   COOKIE BANNER
   ========================================================= */
.cookie{
  position:fixed;bottom:18px;left:18px;right:18px;z-index:80;
  background:#fff;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);
  border:1px solid var(--line);
  transform:translateY(120%);
  transition:transform .35s cubic-bezier(.2,.7,.3,1);
  max-width:980px;margin:0 auto;
}
.cookie.is-visible{transform:translateY(0)}
.cookie__inner{padding:18px 22px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.cookie__inner p{margin:0;font-size:.9rem;color:var(--ink-soft);flex:1;min-width:240px;line-height:1.55}
.cookie__inner a{color:var(--brand-alt);font-weight:500}
.cookie__actions{display:flex;gap:10px;flex-wrap:wrap}

/* =========================================================
   LEGAL PAGE LAYOUT
   ========================================================= */
.legal{padding:60px 0 80px;background:#fff}
.legal__wrap{max-width:820px;margin:0 auto;padding:0 24px}
.legal__back{display:inline-flex;align-items:center;gap:6px;color:var(--brand-alt);font-weight:500;margin-bottom:24px;font-size:.92rem}
.legal h1{font-size:clamp(1.8rem,3vw,2.4rem);margin-bottom:8px}
.legal__date{color:var(--ink-soft);font-size:.9rem;margin-bottom:32px;display:block}
.legal h2{font-size:1.3rem;margin-top:36px;margin-bottom:10px;color:var(--brand)}
.legal h3{font-size:1.05rem;margin-top:24px;color:var(--brand-alt)}
.legal p,.legal li{color:var(--ink);font-size:.97rem;line-height:1.7}
.legal ul,.legal ol{padding-left:22px}

/* =========================================================
   SUCCESS PAGE
   ========================================================= */
.thanks{
  min-height:80vh;
  display:flex;align-items:center;justify-content:center;
  text-align:center;padding:60px 24px;
  background:linear-gradient(180deg,var(--bg-soft),#fff);
}
.thanks__card{
  max-width:560px;background:#fff;
  border-radius:var(--radius-xl);
  padding:48px 36px;
  box-shadow:var(--shadow-lg);border:1px solid var(--line);
}
.thanks__icon{
  width:80px;height:80px;border-radius:50%;
  background:var(--ok);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:2.4rem;margin:0 auto 22px;
}
.thanks h1{font-size:1.8rem;margin-bottom:12px}
.thanks p{color:var(--ink-soft);margin-bottom:24px}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:980px){
  .nav{display:none}
  .burger{display:flex}
  .hero__grid{grid-template-columns:1fr;gap:32px}
  .hero__visual img{aspect-ratio:5/4}
  .hero__badge{left:14px;bottom:14px}
  .cards--3{grid-template-columns:repeat(2,1fr)}
  .product{grid-template-columns:1fr;gap:32px}
  .steps{grid-template-columns:1fr;gap:18px}
  .trust__grid{grid-template-columns:1fr;gap:32px}
  .reviews{grid-template-columns:1fr;gap:18px}
  .order{grid-template-columns:1fr;gap:32px}
  .foot__grid{grid-template-columns:1fr 1fr;gap:32px}
  .strip__sep{display:none}
}

@media (max-width:600px){
  :root{--pad-y:56px;--pad-y-sm:40px}
  .topbar__cta{display:none}
  .hero{padding:48px 0 56px}
  .hero__assure{gap:18px}
  .cards--3{grid-template-columns:1fr}
  .foot__grid{grid-template-columns:1fr}
  .order__form{padding:26px 22px}
  .trust__card{padding:28px 24px}
  .cookie__inner{padding:16px}
  .cookie__actions{width:100%}
  .cookie__actions .btn{flex:1}
  .strip__row{justify-content:flex-start}
  .strip__item{min-width:45%;align-items:flex-start;text-align:left}
  .foot__bottom-row{flex-direction:column;gap:6px}
}

/* reduced motion */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:0!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}