/* ============================================================
   VIKINORD BOOSTER 15% — landing styles (mobile-first)
   ============================================================ */

:root {
  --navy: #011F5F;
  --navy-2: #123B78;
  --ice: #E7ECFF;
  --soft: #DDE7FA;
  --white: #FFFFFF;
  --red: #B5262E;
  --red-2: #9A1F26;
  --cyan: #1596B0;
  --dark: #101B2D;
  --muted: #4A5877;
  --line: rgba(1, 31, 95, .12);

  --r-sm: 16px;
  --r-md: 24px;
  --r-lg: 32px;

  --shadow-sm: 0 2px 10px rgba(1, 31, 95, .06);
  --shadow: 0 12px 32px rgba(1, 31, 95, .08);
  --shadow-lg: 0 24px 60px rgba(1, 31, 95, .14);
  --shadow-red: 0 10px 26px rgba(181, 38, 46, .32);

  --font: 'Roboto', system-ui, -apple-system, 'Segoe UI', Arial, sans-serif;
  --header-h: 64px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { overflow-x: hidden; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  color: var(--dark);
  background-color: var(--ice);
  /* тонкая «медицинская» сетка с точками, как в инфографиках */
  background-image:
    radial-gradient(circle at 1px 1px, rgba(18, 59, 120, .16) 1.6px, transparent 2px),
    linear-gradient(rgba(18, 59, 120, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 59, 120, .045) 1px, transparent 1px);
  background-size: 168px 168px;
  background-position: -1px -1px;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
button { font: inherit; }
h1, h2, h3, h4, p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }

.container { width: 100%; max-width: 1200px; margin-inline: auto; padding-inline: 20px; }

.section { position: relative; padding-block: 72px; }
.section--soft { background: linear-gradient(180deg, rgba(221, 231, 250, .0), rgba(221, 231, 250, .75) 18%, rgba(221, 231, 250, .75) 82%, rgba(221, 231, 250, 0)); }

/* ---------- Typography ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before { content: ''; width: 24px; height: 1px; background: currentColor; }

.h2 {
  font-size: clamp(28px, 7.4vw, 48px);
  font-weight: 700; line-height: 1.1; letter-spacing: -.01em;
  color: var(--navy);
  text-wrap: balance;
}
.h2 .accent, .accent { color: var(--red); }
.h3 { font-size: 20px; font-weight: 700; line-height: 1.25; color: var(--navy); }
.lead { font-size: 17px; font-weight: 400; color: var(--muted); max-width: 56ch; }

.section-head { display: grid; gap: 14px; margin-bottom: 36px; }
.section-head--center { justify-items: center; text-align: center; }
.section-head--center .lead { margin-inline: auto; }

.note { font-size: 13px; color: var(--muted); line-height: 1.5; }

/* ---------- Buttons ---------- */
.btn {
  --btn-bg: var(--red);
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 56px; padding: 0 32px;
  border: 0; border-radius: 999px;
  background: var(--btn-bg); color: var(--white);
  font-size: 16px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; text-decoration: none;
  cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background-color .25s var(--ease);
}
.btn--red { background: linear-gradient(180deg, #C12C35, var(--red) 55%, var(--red-2)); box-shadow: 0 6px 18px rgba(181, 38, 46, .22); }
.btn--red:hover { transform: translateY(-2px); box-shadow: var(--shadow-red); }
.btn--red:active { transform: translateY(0); }
.btn--block { width: 100%; }
.btn--sm { min-height: 44px; padding: 0 20px; font-size: 13px; }
.btn svg { width: 18px; height: 18px; transition: transform .25s var(--ease); }
.btn:hover svg { transform: translateX(3px); }

.btn--ghost {
  background: var(--white); color: var(--navy);
  border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  letter-spacing: .02em; text-transform: none; font-weight: 500;
}
.btn--ghost:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: rgba(1, 31, 95, .25); }

/* ---------- Cards, badges ---------- */
.card {
  position: relative;
  background: var(--white);
  border: 1px solid rgba(1, 31, 95, .06);
  border-radius: var(--r-md);
  box-shadow: var(--shadow);
}

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 999px;
  font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  background: var(--navy); color: var(--white);
}
.badge--red { background: var(--red); }
.badge--light { background: var(--white); color: var(--navy); box-shadow: var(--shadow-sm); }
.badge--cyan { background: rgba(21, 150, 176, .1); color: var(--cyan); }

.icon {
  display: grid; place-items: center; flex: none;
  width: 48px; height: 48px; border-radius: 14px;
  background: linear-gradient(145deg, var(--white), var(--soft));
  border: 1px solid rgba(1, 31, 95, .08);
  color: var(--navy);
}
.icon svg { width: 24px; height: 24px; }
.icon--red { color: var(--red); }
.icon--cyan { color: var(--cyan); }

.step-num {
  font-size: 44px; font-weight: 900; line-height: 1; letter-spacing: -.02em;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--navy-2);
}
.step-num--red { -webkit-text-stroke-color: var(--red); }

/* cold color grading for photos */
.photo { filter: saturate(.86) contrast(1.03) brightness(1.02); }
.photo-frame { position: relative; overflow: hidden; border-radius: var(--r-md); background: var(--soft); }
.photo-frame img { width: 100%; height: 100%; object-fit: cover; }
.photo-frame::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(21, 150, 176, .04), rgba(1, 31, 95, .12));
  mix-blend-mode: multiply;
}

/* ---------- Molecules ---------- */
.molecule { position: absolute; pointer-events: none; z-index: 0; will-change: transform; }
.molecule svg { width: 100%; height: 100%; overflow: visible; }
.molecule--blur { filter: blur(3px); opacity: .7; }
@media (max-width: 767px) { .molecule { scale: .6; opacity: .55; } }

/* product glow behind cut-outs: hides the crop edge */
.product-stage { position: relative; display: grid; place-items: center; isolation: isolate; }
.product-stage::before {
  content: ''; position: absolute; z-index: -1;
  width: 120%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(255, 255, 255, .45), rgba(231, 236, 255, 0));
}
/* вырез из инфографики: края растворяются в фоне страницы (фон исходника ≈ Ice Blue) */
.product-img {
  position: relative;
  --fl: 3%; --fr: 80%; --ft: 6%; --fb: 95%;
  -webkit-mask-image:
    linear-gradient(to right, transparent, #000 var(--fl), #000 var(--fr), transparent),
    linear-gradient(to bottom, transparent, #000 var(--ft), #000 var(--fb), transparent);
  -webkit-mask-composite: source-in;
          mask-image:
    linear-gradient(to right, transparent, #000 var(--fl), #000 var(--fr), transparent),
    linear-gradient(to bottom, transparent, #000 var(--ft), #000 var(--fb), transparent);
          mask-composite: intersect;
}
.float { animation: float 6s ease-in-out infinite; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ============================================================
   Header
   ============================================================ */
.header {
  position: fixed; inset: 0 0 auto; z-index: 50;
  height: var(--header-h);
  transition: background-color .3s, box-shadow .3s, backdrop-filter .3s;
}
.header.is-stuck {
  background: rgba(231, 236, 255, .86);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
          backdrop-filter: blur(14px) saturate(1.2);
  box-shadow: 0 1px 0 var(--line), 0 8px 24px rgba(1, 31, 95, .05);
}
.header__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; }

.logo { display: inline-flex; flex-direction: column; text-decoration: none; line-height: 1; color: var(--navy); }
.logo__name { font-size: 20px; font-weight: 900; letter-spacing: .16em; }
.logo__sub { margin-top: 4px; font-size: 10px; font-weight: 500; letter-spacing: .3em; color: var(--red); text-transform: uppercase; }

.nav {
  position: fixed; inset: var(--header-h) 0 auto; z-index: 49;
  display: grid; gap: 4px; padding: 16px 20px 24px;
  background: rgba(255, 255, 255, .97);
  box-shadow: var(--shadow-lg);
  border-radius: 0 0 var(--r-md) var(--r-md);
  transform: translateY(-8px); opacity: 0; visibility: hidden;
  transition: opacity .25s, transform .25s var(--ease), visibility .25s;
}
.nav.is-open { opacity: 1; transform: none; visibility: visible; }
.nav a {
  padding: 12px 8px; border-bottom: 1px solid var(--line);
  font-size: 17px; font-weight: 500; color: var(--navy); text-decoration: none;
}
.nav .btn { margin-top: 12px; border-bottom: 0; color: var(--white); }

.header__cta { display: none; }

.burger {
  position: relative; width: 44px; height: 44px; border: 0; border-radius: 12px;
  background: var(--white); box-shadow: var(--shadow-sm); cursor: pointer;
}
.burger span, .burger::before, .burger::after {
  content: ''; position: absolute; left: 12px; right: 12px; height: 2px; border-radius: 2px;
  background: var(--navy); transition: transform .25s var(--ease), opacity .2s;
}
.burger::before { top: 15px; }
.burger span { top: 21px; }
.burger::after { top: 27px; }
.burger.is-open::before { transform: translateY(6px) rotate(45deg); }
.burger.is-open span { opacity: 0; }
.burger.is-open::after { transform: translateY(-6px) rotate(-45deg); }

/* ============================================================
   1. Hero
   ============================================================ */
.hero { position: relative; padding-top: calc(var(--header-h) + 20px); padding-bottom: 64px; overflow: hidden; }
.hero::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 50% at 80% 35%, rgba(255, 255, 255, .9), transparent 70%),
    radial-gradient(40% 40% at 10% 90%, rgba(221, 231, 250, .9), transparent 70%);
}
.hero__grid { position: relative; z-index: 1; display: grid; gap: 8px; }

.hero__visual { position: relative; order: -1; max-width: 360px; margin-inline: auto; }
.hero__visual .product-img { width: min(46vw, 190px); }

.hero__tag { position: absolute; z-index: 2; }
.hero__tag--a { left: 0; top: 10%; }
.hero__tag--b { right: 0; bottom: 8%; }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px 8px 8px; border-radius: 999px;
  background: rgba(255, 255, 255, .82);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, .9);
  box-shadow: var(--shadow);
  font-size: 13px; font-weight: 500; color: var(--navy); white-space: nowrap;
}
.chip b { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--navy); color: var(--white); font-size: 11px; font-weight: 700; }
.chip--red b { background: var(--red); }

.hero__content { display: grid; gap: 18px; text-align: left; }
.hero__title {
  font-size: clamp(56px, 17vw, 128px);
  font-weight: 900; line-height: .9; letter-spacing: -.03em;
  color: var(--navy);
}
.hero__title span { color: var(--red); }
.hero__subtitle { font-size: clamp(20px, 5.4vw, 28px); font-weight: 500; line-height: 1.2; color: var(--navy-2); }
.hero__position { font-size: 16px; color: var(--muted); max-width: 42ch; }

.benefits { display: grid; gap: 10px; margin-top: 4px; }
.benefits li { display: flex; align-items: center; gap: 12px; font-size: 16px; font-weight: 500; color: var(--navy); }
.benefits .icon { width: 40px; height: 40px; border-radius: 12px; }
.benefits .icon svg { width: 20px; height: 20px; }

.hero__cta { display: grid; gap: 12px; margin-top: 8px; }
.hero__kit { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); }
.hero__kit svg { width: 18px; height: 18px; color: var(--cyan); flex: none; }

/* ============================================================
   2. Problem
   ============================================================ */
.problem__grid { display: grid; gap: 28px; }
.problem__photos { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.problem__photo { aspect-ratio: 4 / 5; }
.problem__photo img { filter: saturate(.55) contrast(1.02) brightness(1.04); }
.problem__photo figcaption {
  position: absolute; left: 12px; bottom: 12px; z-index: 2;
}
.problem__points { display: grid; gap: 12px; }
.problem__point { display: flex; align-items: flex-start; gap: 14px; padding: 18px; }
.problem__point p { color: var(--muted); font-size: 15px; }
.problem__point h3 { font-size: 17px; margin-bottom: 2px; }

/* ============================================================
   3. Solution
   ============================================================ */
.solution__wrap { position: relative; display: grid; gap: 24px; }
.solution__center { position: relative; display: grid; place-items: center; }
.solution__photo { width: 100%; max-width: 460px; aspect-ratio: 740 / 720; border-radius: var(--r-lg); box-shadow: var(--shadow-lg); }
.solution__photo::after { background: linear-gradient(180deg, transparent 60%, rgba(1, 31, 95, .08)); }
.solution__lines { display: none; }
.solution__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.feature { display: grid; gap: 12px; padding: 18px; align-content: start; }
.feature h3 { font-size: 16px; }
.feature p { font-size: 14px; color: var(--muted); }

/* ============================================================
   4. Results — before / after
   ============================================================ */
.results__track {
  display: grid; grid-auto-flow: column; grid-auto-columns: 86%;
  gap: 14px; margin-inline: -20px; padding: 6px 20px 18px;
  overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none;
  overscroll-behavior-x: contain;
}
.results__track::-webkit-scrollbar { display: none; }

.ba-card { scroll-snap-align: center; padding: 10px; border-radius: var(--r-lg); }
.ba-card__pair { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.ba-card__img { aspect-ratio: 4 / 5; border-radius: 20px; }
.ba-card__img:first-child { border-radius: 20px 8px 8px 20px; }
.ba-card__img:last-child { border-radius: 8px 20px 20px 8px; }
.ba-card__img .badge { position: absolute; z-index: 2; left: 50%; bottom: 10px; transform: translateX(-50%); padding: 5px 12px; font-size: 11px; }
.ba-card__caption { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 14px 8px 6px; }
.ba-card__caption h3 { font-size: 16px; }
.ba-card__caption span { font-size: 13px; color: var(--muted); }

/* compare slider */
.compare { position: relative; aspect-ratio: 8 / 5; border-radius: 20px; overflow: hidden; background: var(--soft); touch-action: pan-y; }
.compare img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.compare__after { clip-path: inset(0 0 0 var(--pos, 50%)); }
.compare__handle {
  position: absolute; top: 0; bottom: 0; left: var(--pos, 50%); width: 2px; margin-left: -1px;
  background: var(--white); box-shadow: 0 0 12px rgba(1, 31, 95, .35); pointer-events: none;
}
.compare__handle::after {
  content: ''; position: absolute; top: 50%; left: 50%; width: 44px; height: 44px; transform: translate(-50%, -50%);
  border-radius: 50%; background: var(--white) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23011F5F' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 6l-5 6 5 6M15 6l5 6-5 6'/%3E%3C/svg%3E") center / 22px no-repeat;
  box-shadow: var(--shadow);
}
.compare input[type=range] {
  position: absolute; inset: 0; width: 100%; height: 100%; margin: 0;
  opacity: 0; cursor: ew-resize; -webkit-appearance: none; appearance: none;
}
.compare .badge { position: absolute; z-index: 2; top: 12px; }
.compare .badge:first-of-type { left: 12px; }
.compare .badge--red { right: 12px; }

.dots { display: flex; justify-content: center; gap: 8px; margin-top: 4px; }
.dots button {
  width: 8px; height: 8px; padding: 0; border: 0; border-radius: 99px;
  background: rgba(1, 31, 95, .2); cursor: pointer; transition: width .3s var(--ease), background-color .3s;
}
.dots button[aria-current="true"] { width: 28px; background: var(--red); }

.disclaimer {
  display: flex; gap: 10px; align-items: flex-start;
  max-width: 720px; margin: 24px auto 0; padding: 14px 18px;
  border-radius: var(--r-sm); background: rgba(255, 255, 255, .6); border: 1px solid var(--line);
  font-size: 13px; color: var(--muted);
}
.disclaimer svg { width: 18px; height: 18px; flex: none; color: var(--cyan); margin-top: 1px; }

.results__compare { margin-top: 28px; display: grid; gap: 18px; }
.results__compare-text { display: grid; gap: 10px; align-content: center; }

/* ============================================================
   5. How it works
   ============================================================ */
.how__scheme { position: relative; padding: 20px 16px; overflow: hidden; }
.how__scheme::before {
  content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(60% 80% at 50% 0%, rgba(21, 150, 176, .08), transparent 70%);
}
.flow { position: relative; z-index: 1; display: grid; gap: 14px; }
.flow__item { display: grid; grid-template-columns: 88px 1fr; gap: 14px; align-items: center; }
.flow__img { width: 88px; aspect-ratio: 1; border-radius: 50%; overflow: hidden; border: 3px solid var(--white); box-shadow: 0 0 0 1px var(--line), var(--shadow-sm); background: var(--soft); }
.flow__img img { width: 100%; height: 100%; object-fit: cover; }
.flow__img--svg { display: grid; place-items: center; background: linear-gradient(145deg, #F6F8FF, var(--soft)); }
.flow__img--svg svg { width: 56px; height: 56px; }
.flow__label { font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--cyan); }
.flow__item h3 { font-size: 17px; }
.flow__item p { font-size: 14px; color: var(--muted); }
.flow__arrow { display: none; }

.steps3 { display: grid; gap: 12px; margin-top: 20px; }
.step3 { display: flex; gap: 16px; align-items: center; padding: 20px; }
.step3 h3 { font-size: 18px; }
.step3 p { font-size: 14px; color: var(--muted); }

/* ============================================================
   6. Mesoroller
   ============================================================ */
.roller { overflow: hidden; }
.roller__grid { display: grid; gap: 28px; align-items: center; }
.roller__visual { position: relative; }
.roller__photo { width: 100%; max-width: 380px; margin-inline: auto; aspect-ratio: 540 / 820; border-radius: var(--r-lg); box-shadow: var(--shadow-lg); }
.roller__photo::after { background: linear-gradient(180deg, transparent 70%, rgba(1, 31, 95, .1)); }
.roller__photo .chip { position: absolute; left: 14px; bottom: 14px; z-index: 2; }
.roller__list { display: grid; gap: 12px; margin-top: 8px; }
.roller__item { display: flex; gap: 14px; align-items: flex-start; padding: 16px 18px; }
.roller__item h3 { font-size: 16px; }
.roller__item p { font-size: 14px; color: var(--muted); }
.roller__freq {
  display: flex; align-items: center; gap: 14px; margin-top: 16px; padding: 16px 18px;
  border-radius: var(--r-sm); background: linear-gradient(120deg, var(--navy), var(--navy-2)); color: var(--white);
}
.roller__freq b { font-size: 30px; font-weight: 900; line-height: 1; white-space: nowrap; }
.roller__freq span { font-size: 14px; opacity: .9; }

/* ============================================================
   7. Audience
   ============================================================ */
.audience__grid { display: grid; gap: 14px; }
.who { overflow: hidden; border-radius: var(--r-lg); padding: 0; }
.who__img { aspect-ratio: 16 / 11; border-radius: 0; }
.who__img img { object-position: center 30%; }
.who__body { display: grid; gap: 6px; padding: 18px 20px 22px; }
.who__body h3 { display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 20px; }
.who__body p { font-size: 14px; color: var(--muted); }
.who__num { font-size: 13px; font-weight: 700; color: var(--red); letter-spacing: .08em; }

/* ============================================================
   8. How to use
   ============================================================ */
.howto__grid { display: grid; gap: 28px; }
.howto__photo { aspect-ratio: 13 / 12; border-radius: var(--r-lg); }
.howto__photo .chip { position: absolute; left: 14px; bottom: 14px; z-index: 2; }

.timeline-steps { position: relative; display: grid; gap: 4px; counter-reset: s; }
.timeline-steps::before {
  content: ''; position: absolute; left: 23px; top: 24px; bottom: 24px; width: 1px;
  background: repeating-linear-gradient(180deg, var(--navy-2) 0 6px, transparent 6px 12px); opacity: .35;
}
.tstep { position: relative; display: flex; align-items: center; gap: 16px; padding: 10px 0; }
.tstep__num {
  position: relative; z-index: 1; display: grid; place-items: center; flex: none;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  font-size: 15px; font-weight: 900; color: var(--navy);
}
.tstep:nth-child(4) .tstep__num { background: var(--navy); color: var(--white); border-color: var(--navy); }
.tstep:last-child .tstep__num { background: var(--red); color: var(--white); border-color: var(--red); }
.tstep p { font-size: 16px; font-weight: 500; color: var(--navy); line-height: 1.35; }

.howto__plate {
  display: flex; align-items: center; gap: 14px; margin-top: 18px; padding: 16px 18px;
  border-radius: var(--r-sm); background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow-sm);
}
.howto__plate b { font-size: 28px; font-weight: 900; color: var(--red); line-height: 1; }
.howto__plate span { font-size: 14px; color: var(--navy); font-weight: 500; }

/* ============================================================
   9. Course
   ============================================================ */
.course { overflow: hidden; }
.course__accent {
  display: inline-flex; align-items: center; gap: 12px; margin-top: 4px;
  padding: 10px 18px 10px 10px; border-radius: 999px; background: var(--white); box-shadow: var(--shadow-sm);
  font-size: 16px; font-weight: 700; color: var(--navy);
}
.course__accent i { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; background: var(--red); color: var(--white); font-style: normal; }
.course__accent svg { width: 16px; height: 16px; }

.timeline { position: relative; display: grid; gap: 16px; }
.timeline::before {
  content: ''; position: absolute; left: 27px; top: 40px; bottom: 40px; width: 2px;
  background: linear-gradient(180deg, var(--navy-2), var(--red));
  opacity: .3;
}
.plan { position: relative; display: grid; gap: 16px; padding: 20px; padding-left: 20px; }
.plan__head { display: flex; align-items: center; gap: 14px; }
.plan__photo { position: relative; z-index: 1; flex: none; width: 56px; height: 56px; border-radius: 50%; overflow: hidden; border: 3px solid var(--white); box-shadow: 0 0 0 1px var(--line); }
.plan__photo img { width: 100%; height: 100%; object-fit: cover; }
.plan__days { font-size: 40px; font-weight: 900; line-height: 1; color: var(--navy); letter-spacing: -.02em; }
.plan__days small { margin-left: 4px; font-size: 16px; font-weight: 700; letter-spacing: 0; }
.plan__bottles { font-size: 15px; font-weight: 500; color: var(--muted); }
.plan__bottles-icons { display: flex; gap: 3px; margin-top: 6px; }
.plan__bottles-icons svg { width: 12px; height: 20px; color: var(--navy-2); }
.plan__desc { font-size: 14px; color: var(--muted); }
.plan__price { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.plan__price b { font-size: 26px; font-weight: 900; color: var(--navy); }
.plan__price span { font-size: 13px; color: var(--muted); }
.plan__shops { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.shop-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 12px; border-radius: 14px;
  font-size: 14px; font-weight: 700; text-decoration: none; letter-spacing: .02em;
  border: 1px solid var(--line); background: var(--white); color: var(--navy);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s;
}
.shop-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: rgba(1, 31, 95, .25); }
.shop-btn i { width: 10px; height: 10px; border-radius: 50%; }
.shop-btn--wb i { background: #7B2B8F; } /* фирменные метки маркетплейсов — только точкой */
.shop-btn--ozon i { background: #1A6BF0; }
.shop-btn[aria-disabled="true"] { opacity: .55; pointer-events: none; }

.plan--full { background: linear-gradient(150deg, var(--white) 30%, #FBEFF0); border-color: rgba(181, 38, 46, .25); box-shadow: 0 18px 44px rgba(181, 38, 46, .12); }
.plan--full .plan__days { color: var(--red); }
.plan--full .plan__bottles-icons svg { color: var(--red); }
.plan__flag { position: absolute; top: -12px; right: 18px; }

.course__note { margin-top: 18px; text-align: center; }

/* ============================================================
   10. Reviews
   ============================================================ */
.reviews__top { display: grid; gap: 20px; margin-bottom: 28px; }
.reviews__proof { position: relative; overflow: hidden; border-radius: var(--r-lg); aspect-ratio: 16 / 10; background: #EEF2FC; }
.reviews__proof img { width: 100%; height: 100%; object-fit: cover; object-position: center 20%; }
.reviews__proof::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 35%, rgba(1, 31, 95, .55) 60%, rgba(1, 31, 95, .9)); }
.reviews__proof-text { position: absolute; left: 20px; right: 20px; bottom: 18px; z-index: 1; color: var(--white); }
.reviews__proof-text b { display: block; font-size: 36px; font-weight: 900; line-height: 1; }
.reviews__proof-text span { font-size: 14px; opacity: .9; }

.reviews__grid { display: grid; gap: 14px; }
.review { display: grid; gap: 14px; padding: 18px; align-content: start; }
.review__head { display: flex; align-items: center; gap: 12px; }
.avatar {
  display: grid; place-items: center; flex: none;
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(145deg, var(--navy-2), var(--navy)); color: var(--white);
  font-size: 15px; font-weight: 700;
}
.review__name { font-size: 16px; font-weight: 700; color: var(--navy); line-height: 1.2; }
.review__meta { font-size: 12px; color: var(--muted); }
.stars { display: flex; gap: 2px; margin-left: auto; color: var(--red); }
.stars svg { width: 15px; height: 15px; }
.review__text { font-size: 15px; color: var(--dark); }
.review__pair { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.review__pair .photo-frame { aspect-ratio: 7 / 5; border-radius: 14px; }
.review__pair .badge { position: absolute; z-index: 2; left: 8px; bottom: 8px; padding: 3px 9px; font-size: 10px; }

/* ============================================================
   11. Quality
   ============================================================ */
.quality__grid { display: grid; gap: 14px; }
.qcard { display: grid; gap: 12px; padding: 22px; align-content: start; }
.qcard h3 { font-size: 18px; }
.qcard p, .qcard li { font-size: 14px; color: var(--muted); }
.qcard ul { display: grid; gap: 8px; }
.qcard li { position: relative; padding-left: 20px; }
.qcard li::before { content: ''; position: absolute; left: 0; top: 8px; width: 8px; height: 8px; border-radius: 50%; border: 2px solid var(--cyan); }
.qcard dl { display: grid; gap: 8px; margin: 0; }
.qcard dt { font-size: 12px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--cyan); }
.qcard dd { margin: 0 0 4px; font-size: 14px; color: var(--navy); font-weight: 500; }
.qcard--doc { grid-template-columns: 1fr; }
.doc-preview {
  position: relative; display: block; width: 100%; padding: 0; border: 0; cursor: zoom-in;
  border-radius: 14px; overflow: hidden; background: var(--white); box-shadow: 0 0 0 1px var(--line);
  aspect-ratio: 16 / 10;
}
.doc-preview img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform .5s var(--ease); }
.doc-preview:hover img { transform: scale(1.03); }
.doc-preview span {
  position: absolute; right: 10px; bottom: 10px;
  padding: 6px 12px; border-radius: 99px; background: rgba(1, 31, 95, .88); color: var(--white); font-size: 12px; font-weight: 500;
}
.link-btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 0; border: 0; background: none; cursor: pointer;
  font-size: 14px; font-weight: 700; color: var(--navy); text-decoration: underline; text-decoration-color: rgba(1, 31, 95, .3); text-underline-offset: 4px;
}
.link-btn:hover { color: var(--red); text-decoration-color: currentColor; }

.quality__drops { display: grid; grid-template-columns: 96px 1fr; gap: 14px; align-items: center; }
.quality__drops .photo-frame { aspect-ratio: 3 / 4; border-radius: 14px; }

/* ============================================================
   12. Final CTA
   ============================================================ */
.final {
  position: relative; overflow: hidden; isolation: isolate;
  margin-inline: 12px; border-radius: var(--r-lg);
  padding-block: 64px;
  background:
    radial-gradient(70% 60% at 85% 30%, rgba(21, 150, 176, .28), transparent 70%),
    radial-gradient(60% 60% at 0% 100%, rgba(18, 59, 120, .9), transparent 70%),
    linear-gradient(150deg, #0A2C73, var(--navy) 55%, #011647);
  color: var(--white);
}
.final::before {
  content: ''; position: absolute; inset: 0; z-index: -1; opacity: .6;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255, 255, 255, .18) 1.4px, transparent 2px),
    linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 168px 168px;
}
.final__grid { position: relative; z-index: 1; display: grid; gap: 28px; align-items: center; }
.final__visual { position: relative; display: grid; place-items: center; }
.final__glass {
  position: relative; display: grid; place-items: center;
  width: min(78vw, 360px); aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(closest-side, #F3F6FF, #DCE5FA 70%, rgba(221, 231, 250, .85));
  box-shadow: 0 0 0 12px rgba(255, 255, 255, .06), 0 0 0 26px rgba(255, 255, 255, .03), 0 30px 80px rgba(0, 0, 0, .35);
  overflow: hidden;
}
.final__glass { background: radial-gradient(closest-side, #EEF2FD, #E4E9F7 75%, #D7E0F5); }
.final__glass img { width: 36%; }
.final__content { display: grid; gap: 14px; text-align: center; justify-items: center; }
.final .h2 { color: var(--white); }
.final__sub { font-size: 18px; font-weight: 500; letter-spacing: .12em; color: #9FD7E3; }
.final__price { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; justify-content: center; margin-top: 6px; }
.final__price b { font-size: 44px; font-weight: 900; line-height: 1; }
.final__price span { font-size: 14px; color: rgba(255, 255, 255, .7); }
.final__kit { font-size: 14px; color: rgba(255, 255, 255, .75); }
.final .btn { margin-top: 6px; }

.join { width: 100%; max-width: 460px; margin-top: 18px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .14); }
.join__title { font-size: 15px; font-weight: 500; margin-bottom: 10px; color: rgba(255, 255, 255, .9); }
.join-form { position: relative; }
.join-form__row {
  display: flex; gap: 6px; padding: 6px;
  border-radius: 999px; background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .18);
  transition: border-color .2s, background-color .2s;
}
.join-form__row:focus-within { border-color: rgba(255, 255, 255, .5); background: rgba(255, 255, 255, .14); }
.join-form.is-error .join-form__row { border-color: #FF9CA2; }
.join-form input[type=email] {
  flex: 1; min-width: 0; height: 44px; padding: 0 16px; border: 0; background: transparent;
  color: var(--white); font: inherit; font-size: 15px; outline: none;
}
.join-form input[type=email]::placeholder { color: rgba(255, 255, 255, .6); }
.join-form button {
  height: 44px; padding: 0 20px; border: 0; border-radius: 999px; cursor: pointer;
  background: var(--white); color: var(--navy); font-weight: 700; font-size: 14px;
  transition: background-color .2s, transform .2s var(--ease);
}
.join-form button:hover { transform: translateY(-1px); background: var(--ice); }
.join-form button:disabled { opacity: .6; cursor: default; transform: none; }
.join-form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.join-form__msg { min-height: 20px; margin-top: 10px; font-size: 13px; color: #9FD7E3; opacity: 0; transition: opacity .2s; }
.join-form__msg.is-visible { opacity: 1; }
.join-form__msg.is-error { color: #FFB3B8; }
.join__legal { margin-top: 6px; font-size: 12px; color: rgba(255, 255, 255, .55); }
.join__legal a { color: rgba(255, 255, 255, .8); }

/* ============================================================
   13. Footer
   ============================================================ */
.footer { margin-top: 12px; padding-block: 56px 110px; background: var(--navy); color: rgba(255, 255, 255, .78); font-size: 14px; }
.footer__grid { display: grid; gap: 32px; }
.footer .logo { color: var(--white); }
.footer__about { margin-top: 12px; max-width: 36ch; }
.footer h4 { margin-bottom: 12px; font-size: 12px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; color: rgba(255, 255, 255, .5); }
.footer__links { display: grid; gap: 10px; }
.footer__links a, .footer__links button {
  padding: 0; border: 0; background: none; cursor: pointer; text-align: left;
  color: rgba(255, 255, 255, .85); font-size: 15px; text-decoration: none;
}
.footer__links a:hover, .footer__links button:hover { color: var(--white); text-decoration: underline; text-underline-offset: 4px; }
.footer__bottom { display: grid; gap: 10px; margin-top: 40px; padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, .12); font-size: 12px; color: rgba(255, 255, 255, .55); }

/* ============================================================
   14. Sticky CTA (mobile)
   ============================================================ */
.sticky-cta {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: linear-gradient(180deg, rgba(231, 236, 255, 0), rgba(231, 236, 255, .92) 35%);
  transform: translateY(110%); transition: transform .35s var(--ease);
}
.sticky-cta.is-visible { transform: none; }
.sticky-cta .btn { width: 100%; box-shadow: var(--shadow-red); }

/* ============================================================
   15. Modal
   ============================================================ */
.modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: end center; visibility: hidden; }
.modal.is-open { visibility: visible; }
.modal__overlay { position: absolute; inset: 0; background: rgba(1, 16, 50, .55); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); opacity: 0; transition: opacity .3s; }
.modal.is-open .modal__overlay { opacity: 1; }
.modal__dialog {
  position: relative; width: 100%; max-height: 88vh; overflow: auto;
  padding: 24px 20px 28px; border-radius: var(--r-md) var(--r-md) 0 0;
  background: var(--white); box-shadow: var(--shadow-lg);
  transform: translateY(40px); opacity: 0; transition: transform .35s var(--ease), opacity .3s;
}
.modal.is-open .modal__dialog { transform: none; opacity: 1; }
.modal__close {
  position: absolute; top: 14px; right: 14px; width: 40px; height: 40px; border: 0; border-radius: 50%;
  background: var(--ice); color: var(--navy); cursor: pointer; font-size: 22px; line-height: 1;
}
.modal__close:hover { background: var(--soft); }
.modal__title { padding-right: 44px; margin-bottom: 16px; font-size: 22px; font-weight: 700; color: var(--navy); }
.modal__dialog--doc { max-width: 820px; }
.modal__dialog--doc img { width: 100%; border-radius: 12px; box-shadow: 0 0 0 1px var(--line); }

.tabs { display: flex; gap: 6px; margin-bottom: 18px; overflow-x: auto; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs button {
  flex: none; padding: 9px 16px; border: 1px solid var(--line); border-radius: 999px; cursor: pointer;
  background: var(--white); color: var(--navy); font-size: 14px; font-weight: 500;
}
.tabs button[aria-selected="true"] { background: var(--navy); border-color: var(--navy); color: var(--white); }
.tab-panel { display: grid; gap: 12px; font-size: 15px; color: var(--dark); }
.tab-panel ul { display: grid; gap: 8px; }
.tab-panel li { position: relative; padding-left: 18px; }
.tab-panel li::before { content: ''; position: absolute; left: 0; top: 9px; width: 6px; height: 6px; border-radius: 50%; background: var(--red); }
.placeholder {
  padding: 12px 14px; border-radius: 12px; border: 1px dashed rgba(181, 38, 46, .45); background: #FDF5F5;
  font-size: 13px; color: var(--red-2);
}

/* ============================================================
   Tablet ≥ 768
   ============================================================ */
@media (min-width: 768px) {
  .container { padding-inline: 32px; }
  .section { padding-block: 96px; }
  .section-head { margin-bottom: 48px; }

  .hero__grid { grid-template-columns: 1.05fr .95fr; align-items: center; gap: 24px; }
  .hero__visual { order: 0; max-width: none; }
  .hero__visual .product-img { width: min(34vw, 340px); }
  .hero__cta { grid-template-columns: auto; justify-items: start; }
  .hero__cta .btn { min-width: 300px; }

  .problem__grid { grid-template-columns: 1.1fr .9fr; align-items: center; gap: 48px; }

  .solution__grid { grid-template-columns: repeat(4, 1fr); }

  .results__track { grid-auto-flow: row; grid-template-columns: repeat(3, 1fr); grid-auto-columns: auto; margin: 0; padding: 0; overflow: visible; }
  .results .dots { display: none; }
  .results__compare { grid-template-columns: 1.3fr 1fr; gap: 36px; }

  .flow { grid-template-columns: repeat(4, 1fr); gap: 0; }
  .flow__item { grid-template-columns: 1fr; justify-items: center; text-align: center; gap: 12px; padding-inline: 10px; }
  .flow__img { width: 124px; }
  .flow__img--svg svg { width: 70px; height: 70px; }
  .flow__arrow { display: block; position: absolute; top: 62px; left: 12.5%; right: 12.5%; height: 2px; z-index: -1; }
  .how__scheme { padding: 40px 28px; }
  .steps3 { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .step3 { flex-direction: column; align-items: flex-start; padding: 28px; }

  .roller__grid { grid-template-columns: .9fr 1.1fr; gap: 56px; }

  .audience__grid { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .who__img { aspect-ratio: 4 / 5; }

  .howto__grid { grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: center; }

  .timeline { grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
  .timeline::before { left: 10%; right: 10%; top: 50px; bottom: auto; width: auto; height: 2px; background: linear-gradient(90deg, var(--navy-2), var(--red)); }
  .plan { padding: 24px; grid-template-rows: auto auto 1fr auto auto; }

  .reviews__top { grid-template-columns: 1fr 1fr; align-items: end; gap: 40px; }
  .reviews__top .section-head { margin-bottom: 0; }
  .reviews__grid { grid-template-columns: 1fr 1fr; gap: 18px; }

  .quality__grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }

  .final { margin-inline: 24px; padding-block: 88px; }
  .final__grid { grid-template-columns: 1.1fr .9fr; }
  .final__content { text-align: left; justify-items: start; order: -1; }
  .final__price { justify-content: flex-start; }

  .footer { padding-bottom: 48px; }
  .footer__grid { grid-template-columns: 1.4fr 1fr 1fr; }

  .sticky-cta { display: none; }

  .modal { place-items: center; padding: 24px; }
  .modal__dialog { max-width: 640px; border-radius: var(--r-md); padding: 32px; }
}

/* ============================================================
   Desktop ≥ 1024
   ============================================================ */
@media (min-width: 1024px) {
  :root { --header-h: 76px; }

  .nav {
    position: static; display: flex; align-items: center; gap: 4px; padding: 0;
    background: none; box-shadow: none; border-radius: 0;
    opacity: 1; visibility: visible; transform: none;
  }
  .nav a { padding: 8px 12px; border: 0; border-radius: 99px; font-size: 15px; color: var(--navy-2); transition: color .2s, background-color .2s; }
  .nav a:hover { color: var(--navy); background: rgba(255, 255, 255, .7); }
  .nav .btn { display: none; }
  .header__cta { display: inline-flex; }
  .burger { display: none; }

  .hero { padding-top: calc(var(--header-h) + 32px); padding-bottom: 96px; min-height: min(100vh, 900px); display: flex; align-items: center; }
  .hero .container { width: 100%; }
  .hero__content { gap: 22px; }
  .hero__visual .product-img { width: 330px; }
  .hero__tag--a { left: 4%; }
  .hero__tag--b { right: 2%; }
  .benefits { grid-template-columns: repeat(3, auto); justify-content: start; gap: 12px 24px; }
  .benefits li { font-size: 15px; }

  .card--glass {
    background: rgba(255, 255, 255, .72);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
            backdrop-filter: blur(16px) saturate(1.2);
    border-color: rgba(255, 255, 255, .9);
  }

  /* Solution: features around the product */
  .solution__wrap { grid-template-columns: 1fr 1.25fr 1fr; grid-template-rows: auto auto; align-items: center; gap: 28px 32px; }
  .solution__grid { display: contents; }
  .solution__center { grid-column: 2; grid-row: 1 / span 2; }
  .solution__grid .feature:nth-child(1) { grid-column: 1; grid-row: 1; }
  .solution__grid .feature:nth-child(2) { grid-column: 1; grid-row: 2; }
  .solution__grid .feature:nth-child(3) { grid-column: 3; grid-row: 1; }
  .solution__grid .feature:nth-child(4) { grid-column: 3; grid-row: 2; }
  .feature { padding: 26px; }
  .feature h3 { font-size: 18px; }
  .solution__lines { display: block; position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; pointer-events: none; }

  .problem__point { padding: 22px 24px; }


  .course .section-head { grid-template-columns: 1fr auto; align-items: end; }

  .review { grid-template-columns: 1fr 1fr; gap: 16px 20px; padding: 22px; }
  .review__head, .review__text { grid-column: 1 / -1; }

  .quality__grid { grid-template-columns: repeat(3, 1fr); }
  .qcard--doc { grid-column: span 2; grid-template-columns: 1fr 1.1fr; align-items: center; gap: 24px; }

  .final__glass { width: 420px; }
}

@media (min-width: 1280px) {
  .section { padding-block: 120px; }
  .final { max-width: 1320px; margin-inline: auto; }
}

/* ============================================================
   Reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
  .float { animation: none; }
  .molecule { transform: none !important; }
}