:root {
  --bg: #080706;
  --bg-soft: #11100e;
  --panel: rgba(25, 23, 20, 0.86);
  --panel-line: rgba(218, 170, 105, 0.14);
  --text: #f4eee5;
  --muted: #b7aca0;
  --gold: #d9aa68;
  --gold-light: #f1d3a0;
  --dark-gold: #7d5732;
  --danger: #e66f5c;
  --radius: 8px;
  --shadow: 0 26px 70px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, Arial, sans-serif;
  line-height: 1.6;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  min-height: 74px;
  padding: 12px max(20px, calc((100vw - 1120px) / 2));
  border-bottom: 1px solid rgba(217, 170, 104, 0.1);
  background: rgba(8, 7, 6, 0.74);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  min-width: 160px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(217, 170, 104, 0.42);
  border-radius: 50%;
  color: var(--gold-light);
  font-family: "Playfair Display", serif;
  font-weight: 700;
}

.brand strong {
  display: block;
  font-weight: 700;
  line-height: 1;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.1;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  color: #d9d0c5;
  font-size: 14px;
}

.nav a {
  transition: color 0.2s ease;
}

.nav a:hover {
  color: var(--gold-light);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.messenger {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(217, 170, 104, 0.22);
  border-radius: 50%;
  color: var(--gold-light);
  font-size: 11px;
  font-weight: 800;
}

.messenger.tiktok {
  border-color: rgba(242, 216, 170, 0.34);
  color: #f2d8aa;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(217, 170, 104, 0.08));
}

.btn,
.ghost-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid rgba(217, 170, 104, 0.42);
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.btn {
  background: linear-gradient(180deg, #f2d8aa, #bf8348);
  color: #241408;
  box-shadow: 0 14px 30px rgba(191, 131, 72, 0.24);
}

.btn:hover,
.ghost-btn:hover {
  transform: translateY(-2px);
  border-color: rgba(242, 216, 170, 0.8);
}

.btn-small {
  min-height: 38px;
  padding: 0 17px;
  font-size: 13px;
}

.ghost-btn {
  color: var(--gold-light);
  background: rgba(255, 255, 255, 0.02);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(217, 170, 104, 0.24);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: var(--gold-light);
}

.section {
  padding: 108px 0;
}

.hero {
  position: relative;
  min-height: 660px;
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 74px 0 54px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 68% 28%, rgba(217, 170, 104, 0.14), transparent 28%),
    linear-gradient(90deg, rgba(5, 4, 3, 1) 0%, rgba(5, 4, 3, 0.96) 40%, rgba(5, 4, 3, 0.86) 100%),
    #070605;
  opacity: 1;
}

.hero-bg::after {
  content: "";
  position: absolute;
  top: 0;
  right: max(0px, calc((100vw - 1120px) / 2));
  bottom: 0;
  width: min(680px, 56vw);
  background:
    linear-gradient(90deg, rgba(5, 4, 3, 0.96) 0%, rgba(5, 4, 3, 0.26) 24%, rgba(5, 4, 3, 0.02) 62%, rgba(5, 4, 3, 0.2) 100%),
    linear-gradient(180deg, rgba(5, 4, 3, 0), rgba(5, 4, 3, 0.42)),
    url("assets/hero-photo.png");
  background-repeat: no-repeat;
  background-size: auto 88%;
  background-position: right center;
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 240px;
  background: linear-gradient(transparent, var(--bg));
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 560px) minmax(430px, 520px);
  justify-content: space-between;
  gap: 58px;
  align-items: center;
}

.hero-copy {
  max-width: 620px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  font-family: "Playfair Display", Georgia, serif;
  font-weight: 600;
  line-height: 1.05;
}

h1 {
  max-width: 520px;
  font-size: clamp(40px, 4.4vw, 54px);
}

h2 {
  font-size: clamp(34px, 4.5vw, 54px);
}

h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.35;
}

.lead {
  max-width: 520px;
  margin: 22px 0 30px;
  color: #ddd3c8;
  font-size: 18px;
}

.hero-buttons,
.contact-buttons {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.video-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #efe5d9;
  font-weight: 700;
}

.hero-video-slot {
  width: 260px;
  max-width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid rgba(217, 170, 104, 0.34);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(8, 7, 6, 0.22), rgba(8, 7, 6, 0.72)),
    radial-gradient(circle at 50% 42%, rgba(217, 170, 104, 0.18), transparent 42%),
    rgba(8, 7, 6, 0.72);
  box-shadow: 0 18px 52px rgba(0, 0, 0, 0.34);
}

.hero-video-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: #efe5d9;
  font-weight: 800;
}

.hero-video-slot iframe {
  width: 100%;
  height: 100%;
  display: block;
  border: 0;
}

.play-icon {
  width: 44px;
  height: 44px;
  border: 1px solid rgba(217, 170, 104, 0.35);
  border-radius: 50%;
  position: relative;
}

.play-icon::after {
  content: "";
  position: absolute;
  left: 17px;
  top: 13px;
  border-left: 12px solid var(--gold-light);
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
}

.social-proof {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 42px;
  color: var(--muted);
  font-size: 13px;
}

.avatars {
  display: flex;
}

.avatars span {
  width: 34px;
  height: 34px;
  margin-left: -8px;
  border: 2px solid #1a1712;
  border-radius: 50%;
  background: linear-gradient(135deg, #f2d8aa, #6c4730);
}

.avatars span:first-child {
  margin-left: 0;
}

.benefits-row {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  width: min(820px, 100%);
  max-width: none;
  margin-top: 18px;
}

.benefits-row span {
  position: relative;
  min-height: 40px;
  padding: 4px 8px 4px 42px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: #efe5d9;
  font-size: 13px;
  font-weight: 700;
}

.benefits-row span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 30px;
  height: 30px;
  border: 1px solid rgba(217, 170, 104, 0.35);
  border-radius: 50%;
  background:
    linear-gradient(135deg, transparent 52%, rgba(217, 170, 104, 0.22) 53%),
    rgba(12, 11, 10, 0.64);
}

.expert-card {
  align-self: end;
  width: min(100%, 500px);
  margin: 530px 0 0 auto;
  position: relative;
  left: -200px;
  padding: 16px 22px;
  border: 1px solid rgba(217, 170, 104, 0.24);
  border-radius: 8px;
  background: rgba(8, 7, 6, 0.76);
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 52px rgba(0, 0, 0, 0.32);
}

.expert-card strong {
  display: block;
  color: var(--gold-light);
  font-family: "Playfair Display", Georgia, serif;
  font-size: 22px;
  line-height: 1.1;
}

.expert-card span {
  display: block;
  margin: 4px 0 8px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
}

.expert-card p {
  margin: 0;
  color: #d9d0c5;
  max-width: 410px;
  font-size: 13px;
  line-height: 1.42;
}

.stats {
  border-top: 1px solid rgba(217, 170, 104, 0.1);
  border-bottom: 1px solid rgba(217, 170, 104, 0.1);
  background: #0e0d0c;
}

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

.stat {
  padding: 26px 20px;
  text-align: center;
}

.stat span {
  display: block;
  color: var(--gold-light);
  font-size: 24px;
  font-weight: 800;
}

.stat p,
.section-heading p,
.price-card p,
.timeline p,
.feature-list,
.review-card p,
.final-cta p,
.text-stack p,
.video-review p,
.guarantee-card p {
  color: var(--muted);
}

.text-stack {
  display: grid;
  gap: 16px;
}

.text-stack p {
  margin: 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 42px;
}

.section-heading.row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  max-width: none;
}

.request-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.request-card,
.review-card,
.price-card,
.lead-form {
  border: 1px solid var(--panel-line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015));
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
}

.request-card {
  min-height: 142px;
  padding: 22px;
}

.request-card span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 24px;
  border: 1px solid rgba(217, 170, 104, 0.22);
  border-radius: 50%;
  color: var(--gold);
  font-size: 12px;
}

.center {
  display: flex;
  justify-content: center;
  margin-top: 28px;
}

.split-section,
.price-section {
  background: linear-gradient(180deg, #0b0a09, #11100e);
}

.split-section {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #0b0a09, #11100e);
}

.split-section::before {
  content: "";
  position: absolute;
  top: 0;
  right: max(0px, calc((100vw - 1120px) / 2));
  bottom: 0;
  width: min(760px, 64vw);
  background:
    linear-gradient(90deg, rgba(8, 7, 6, 0.98) 0%, rgba(8, 7, 6, 0.4) 26%, rgba(8, 7, 6, 0.2) 68%, rgba(8, 7, 6, 0.82) 100%),
    linear-gradient(180deg, rgba(8, 7, 6, 0.12), rgba(8, 7, 6, 0.84)),
    url("assets/section-bg.png");
  background-repeat: no-repeat;
  background-size: auto 100%;
  background-position: right center;
  opacity: 0.82;
  pointer-events: none;
}

.split-grid,
.science-grid,
.price-grid,
.cta-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 68px;
  align-items: center;
}

.timeline {
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 24px;
  bottom: 24px;
  width: 1px;
  background: linear-gradient(var(--gold), transparent);
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 22px;
  padding: 18px 0;
}

.timeline-item span {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  border: 1px solid rgba(217, 170, 104, 0.28);
  border-radius: 50%;
  background: #11100e;
  color: var(--gold-light);
  font-size: 12px;
  font-weight: 800;
}

.science {
  background:
    radial-gradient(circle at 76% 50%, rgba(217, 170, 104, 0.16), transparent 28%),
    #0d0c0b;
}

.feature-list {
  padding: 0;
  list-style: none;
}

.feature-list li {
  margin: 18px 0;
  padding-left: 34px;
  position: relative;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 14px;
  height: 14px;
  border: 1px solid var(--gold);
  border-radius: 50%;
}

.brain-card {
  position: relative;
  min-height: 330px;
  border: 1px solid var(--panel-line);
  border-radius: 12px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(8, 7, 6, 0.28), rgba(8, 7, 6, 0.08)),
    url("assets/brain-glow.png");
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow);
}

.brain-orbit {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 44% 50%, transparent 38%, rgba(8, 7, 6, 0.62) 100%);
  pointer-events: none;
}

.brain-label {
  position: absolute;
  color: var(--gold-light);
  font-weight: 700;
  padding: 8px 12px;
  border: 1px solid rgba(217, 170, 104, 0.22);
  border-radius: 999px;
  background: rgba(8, 7, 6, 0.62);
  backdrop-filter: blur(8px);
}

.brain-label.top {
  right: 46px;
  top: 80px;
}

.brain-label.bottom {
  right: 38px;
  bottom: 74px;
}

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

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

.video-review {
  overflow: hidden;
  display: grid;
  gap: 14px;
  padding: 12px;
  border: 1px solid var(--panel-line);
  border-radius: var(--radius);
  color: inherit;
  text-decoration: none;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.052), rgba(255, 255, 255, 0.014));
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
}

.youtube-frame {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: calc(var(--radius) - 4px);
  background: #080706;
}

.youtube-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-review h3,
.video-review p {
  margin: 0;
}

.video-review h3 {
  padding: 0 6px 4px;
  font-size: 16px;
}

.review-card {
  padding: 24px;
}

.client {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}

.client span {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #f2d8aa, #5a3524);
  color: #1c1109;
  font-weight: 900;
}

.client small {
  display: block;
  color: var(--muted);
}

.price-card {
  padding: 34px;
}

.price-card span {
  color: var(--gold);
  font-weight: 700;
}

.price-card strong {
  display: block;
  margin: 10px 0 18px;
  font-family: "Playfair Display", serif;
  font-size: 42px;
}

.final-cta {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 50%, rgba(217, 170, 104, 0.16), transparent 28%),
    #090806;
}

.final-cta::before {
  content: "";
  position: absolute;
  top: 0;
  right: max(0px, calc((100vw - 1120px) / 2));
  bottom: 0;
  width: min(700px, 58vw);
  background:
    linear-gradient(90deg, rgba(8, 7, 6, 0.98) 0%, rgba(8, 7, 6, 0.46) 28%, rgba(8, 7, 6, 0.18) 70%, rgba(8, 7, 6, 0.78) 100%),
    linear-gradient(180deg, rgba(8, 7, 6, 0.08), rgba(8, 7, 6, 0.82)),
    url("assets/cta-office.png");
  background-repeat: no-repeat;
  background-size: auto 100%;
  background-position: right center;
  opacity: 0.82;
  pointer-events: none;
}

.lead-form {
  display: grid;
  gap: 16px;
  padding: 28px;
}

.lead-form label {
  display: grid;
  gap: 8px;
  color: var(--gold-light);
  font-weight: 700;
}

.lead-form input,
.lead-form textarea {
  width: 100%;
  border: 1px solid rgba(217, 170, 104, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
  color: var(--text);
  outline: none;
  padding: 14px 15px;
}

.lead-form textarea {
  min-height: 118px;
  resize: vertical;
}

.form-status {
  min-height: 22px;
  margin: 0;
  color: var(--gold-light);
}

.telegram-btn {
  background: linear-gradient(180deg, #97d9ff, #2a93d5);
}

.whatsapp-btn {
  background: linear-gradient(180deg, #abffbd, #2bb55e);
}

.tiktok-btn {
  color: #f8efe4;
  background: linear-gradient(180deg, #2a2521, #0f0d0c);
  border-color: rgba(217, 170, 104, 0.42);
}

.guarantee-card {
  margin-top: 28px;
  padding: 24px;
  border: 1px solid rgba(217, 170, 104, 0.22);
  border-radius: 10px;
  background: rgba(8, 7, 6, 0.68);
  backdrop-filter: blur(12px);
}

.guarantee-card strong {
  display: block;
  margin-bottom: 12px;
  color: var(--gold-light);
  font-family: "Playfair Display", Georgia, serif;
  font-size: 28px;
  line-height: 1.15;
}

.guarantee-card p {
  margin: 10px 0 0;
}

.footer {
  padding: 28px 0;
  color: var(--muted);
  border-top: 1px solid rgba(217, 170, 104, 0.1);
  background: #070605;
  font-size: 13px;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (hover: hover) and (pointer: fine) {
  .request-card,
  .review-card,
  .video-review,
  .price-card,
  .lead-form,
  .guarantee-card,
  .brain-card,
  .expert-card,
  .benefits-row span,
  .timeline-item {
    transition:
      transform 0.24s ease,
      border-color 0.24s ease,
      background 0.24s ease,
      box-shadow 0.24s ease,
      color 0.24s ease;
  }

  .request-card:hover,
  .review-card:hover,
  .video-review:hover,
  .price-card:hover,
  .lead-form:hover,
  .guarantee-card:hover,
  .brain-card:hover {
    transform: translateY(-6px);
    border-color: rgba(242, 216, 170, 0.42);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.022));
    box-shadow: 0 26px 70px rgba(0, 0, 0, 0.34), 0 0 0 1px rgba(217, 170, 104, 0.05);
  }

  .expert-card:hover {
    border-color: rgba(242, 216, 170, 0.42);
    background: rgba(12, 10, 8, 0.84);
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.42);
  }

  .benefits-row span:hover {
    color: var(--gold-light);
  }

  .benefits-row span:hover::before,
  .timeline-item:hover span,
  .request-card:hover span,
  .video-review:hover .play-icon {
    border-color: rgba(242, 216, 170, 0.62);
    box-shadow: 0 0 26px rgba(217, 170, 104, 0.14);
  }

  .timeline-item:hover {
    transform: translateX(8px);
  }

  .lead-form input:focus,
  .lead-form textarea:focus {
    outline: none;
    border-color: rgba(242, 216, 170, 0.58);
    box-shadow: 0 0 0 3px rgba(217, 170, 104, 0.1);
  }
}

@media (max-width: 1180px) {
  .container {
    width: min(100% - 52px, 980px);
  }

  .site-header {
    padding-left: 26px;
    padding-right: 26px;
  }

  .nav {
    gap: 18px;
    font-size: 13px;
  }

  .section {
    padding: 82px 0;
  }

  .hero {
    min-height: 560px;
    padding: 58px 0 44px;
  }

  .hero-bg {
    background:
      radial-gradient(circle at 68% 28%, rgba(217, 170, 104, 0.12), transparent 28%),
      linear-gradient(90deg, rgba(5, 4, 3, 1) 0%, rgba(5, 4, 3, 0.96) 42%, rgba(5, 4, 3, 0.88) 100%),
      #070605;
  }

  .hero-bg::after {
    right: 26px;
    width: min(560px, 52vw);
    background:
      linear-gradient(90deg, rgba(5, 4, 3, 0.82) 0%, rgba(5, 4, 3, 0.24) 50%, rgba(5, 4, 3, 0.06) 76%, rgba(5, 4, 3, 0.22) 100%),
      linear-gradient(180deg, rgba(5, 4, 3, 0), rgba(5, 4, 3, 0.34)),
      url("assets/hero-photo.png");
    background-repeat: no-repeat;
    background-size: auto 86%;
    background-position: right top 18px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 500px) minmax(360px, 440px);
    gap: 34px;
  }

  h1 {
    max-width: 470px;
    font-size: clamp(38px, 4.6vw, 50px);
  }

  .lead {
    max-width: 470px;
    font-size: 16px;
  }

  .expert-card {
    width: min(100%, 420px);
    margin: 385px 0 0 auto;
    left: -250px;
  }

  .benefits-row {
    width: min(760px, 100%);
    gap: 18px;
  }

  .benefits-row span {
    font-size: 12px;
  }

  .split-grid,
  .science-grid,
  .price-grid,
  .cta-grid {
    gap: 46px;
  }

  .split-section::before {
    right: 26px;
    width: min(620px, 58vw);
    background-size: auto 96%;
    background-position: right center;
  }

  .final-cta::before {
    right: 26px;
    width: min(590px, 56vw);
    background-size: auto 96%;
    background-position: right center;
  }
}

@media (max-width: 980px) {
  .site-header {
    min-height: 68px;
  }

  .nav {
    position: fixed;
    inset: 74px 16px auto;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    border: 1px solid var(--panel-line);
    border-radius: 10px;
    background: rgba(12, 11, 10, 0.96);
  }

  body.menu-open .nav {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .btn-small,
  .messenger {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 104px 0 72px;
  }

  .hero-bg::after {
    background:
      linear-gradient(90deg, rgba(5, 4, 3, 0.9) 0%, rgba(5, 4, 3, 0.42) 52%, rgba(5, 4, 3, 0.8) 100%),
      linear-gradient(180deg, rgba(5, 4, 3, 0.02), rgba(5, 4, 3, 0.86)),
      url("assets/hero-photo.png");
    background-repeat: no-repeat;
    background-size: auto 100%;
    background-position: right center;
  }

  .hero-grid,
  .split-grid,
  .science-grid,
  .price-grid,
  .cta-grid {
    grid-template-columns: 1fr;
  }

  .expert-card {
    max-width: 520px;
    margin: 26px 0 0;
    left: 0;
  }

  .benefits-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
  }

  .request-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid,
  .review-grid,
  .video-review-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 620px) {
  html {
    scroll-padding-top: 72px;
  }

  .container {
    width: min(100% - 28px, 1120px);
  }

  .site-header {
    min-height: 64px;
    padding-left: 14px;
    padding-right: 14px;
  }

  .brand strong {
    font-size: 14px;
  }

  .brand small {
    font-size: 10px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .nav {
    inset: 68px 12px auto;
  }

  .section {
    padding: 70px 0;
  }

  .hero {
    padding: 92px 0 58px;
  }

  .hero-bg {
    background:
      linear-gradient(180deg, rgba(5, 4, 3, 0.42) 0%, rgba(5, 4, 3, 0.86) 48%, rgba(5, 4, 3, 1) 100%),
      linear-gradient(90deg, rgba(5, 4, 3, 0.92), rgba(5, 4, 3, 0.3), rgba(5, 4, 3, 0.86)),
      url("assets/hero-photo.png");
    background-repeat: no-repeat;
    background-size: auto 58%;
    background-position: right top 16px;
  }

  .hero-bg::after {
    background:
      linear-gradient(180deg, rgba(5, 4, 3, 0.05), rgba(5, 4, 3, 0.98) 76%);
  }

  h1 {
    max-width: 340px;
    font-size: clamp(38px, 13vw, 48px);
  }

  h2 {
    font-size: clamp(30px, 10vw, 40px);
  }

  .lead {
    margin: 20px 0 26px;
    font-size: 16px;
  }

  .hero-buttons,
  .contact-buttons,
  .footer-grid,
  .section-heading.row {
    align-items: stretch;
    flex-direction: column;
  }

  .btn,
  .video-link,
  .hero-video-slot {
    width: 100%;
    justify-content: center;
  }

  .benefits-row {
    grid-template-columns: 1fr;
    margin-top: 30px;
  }

  .expert-card {
    padding: 22px;
  }

  .request-card,
  .review-card,
  .lead-form,
  .guarantee-card {
    padding: 22px;
  }

  .request-grid,
  .stats-grid,
  .review-grid,
  .video-review-grid {
    grid-template-columns: 1fr;
  }

  .brain-orbit {
    inset: 92px 54px;
  }

  .cta-photo {
    min-height: 280px;
  }
}

@media (max-width: 390px) {
  .container {
    width: min(100% - 22px, 1120px);
  }

  .brand span:last-child {
    display: none;
  }

  h1 {
    font-size: 36px;
  }

  .benefits-row span {
    font-size: 13px;
  }
}