* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  text-transform: uppercase;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  color: #0f172a;
  background-color: #f8fafc;
  line-height: 1.25;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 4.5rem 1.5rem;
}

.container-menu {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.section {
  width: 100%;
  display: block;
}

.bg-white { background-color: #ffffff; }
.bg-gradient-soft { background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%); }
.text-center { text-align: center; }

/* Шапка с фиксированной высотой */
.header {
  position: sticky;
  top: 0;
  height: 70px;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  z-index: 1000;
}

.logo {
  font-size: 1.25rem;
  font-weight: 900;
  color: #000000;
  letter-spacing: -0.04em;
}

.btn-outline {
  border: 2px solid #7c3aed;
  color: #ffffff;
  background: #7c3aed;
  padding: 0.65rem 1.3rem;
  font-weight: 800;
  font-size: 0.85rem;
  text-decoration: none;
  border-radius: 50px;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3);
  transition: all 0.2s ease;
}

.btn-outline:hover {
  background: #6d28d9;
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.45);
  transform: translateY(-1px);
}

.badge {
  display: inline-block;
  background: linear-gradient(90deg, #f3e8ff 0%, #e0e7ff 100%);
  color: #6d28d9;
  padding: 0.5rem 1.2rem;
  font-size: 0.8rem;
  font-weight: 900;
  border-radius: 50px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.08em;
  box-shadow: 0 2px 10px rgba(124, 58, 237, 0.1);
}

.badge-white {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
  padding: 0.5rem 1.2rem;
  font-size: 0.8rem;
  font-weight: 900;
  border-radius: 50px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.08em;
}

.gradient-text {
  background: linear-gradient(135deg, #7c3aed 0%, #3b82f6 50%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mega-title {
  font-size: 2.8rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 1.8rem;
}

.mega-subtitle {
  font-size: 1.5rem;
  font-weight: 800;
  color: #475569;
  line-height: 1.35;
  max-width: 800px;
  margin: 0 auto;
}

/* ИСПРАВЛЕНО: Геометрия Fullscreen Hero без конфликтов с внутренним контейнером */
.hero-section {
  background: radial-gradient(circle at top right, #f8fafc 0%, #eef2f6 50%, #f5f3ff 100%);
  height: calc(100dvh - 70px);
  min-height: 450px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-section .container {
  padding-top: 1.5rem !important;
  padding-bottom: 1.5rem !important;
}

.simple-list {
  max-width: 750px;
  margin: 0 auto;
  text-align: left;
}

.list-item-big {
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 1.5rem 0;
  color: #0f172a;
  line-height: 1.25;
  display: flex;
  align-items: center;
}

.icon-dot {
  margin-right: 1.2rem;
  font-size: 2rem;
}

.grid-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2.5rem;
}

.card-giant, .compare-card, .tariff-card {
  background: #ffffff;
  padding: 3rem 2.2rem;
  border-radius: 24px;
  border: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: 0 10px 40px rgba(15, 23, 42, 0.02);
  text-align: left;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.glow-purple:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(124, 58, 237, 0.08);
  border-color: rgba(124, 58, 237, 0.3);
}

.card-giant h2, .compare-card h2, .tariff-card h2 {
  font-size: 1.65rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  color: #0f172a;
}

.card-giant p, .compare-card p, .tariff-card p {
  font-size: 1.15rem;
  font-weight: 700;
  color: #475569;
  line-height: 1.4;
}

.compare-card.new-way {
  background: linear-gradient(145deg, #ffffff 0%, #f5f3ff 100%);
  border: 2px solid #7c3aed;
  box-shadow: 0 15px 35px rgba(124, 58, 237, 0.06);
}

.compare-card.new-way h2 {
  background: linear-gradient(90deg, #7c3aed, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.compare-card p {
  margin-bottom: 1.2rem;
}

.case-banner {
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #311042 100%);
  color: #ffffff;
  padding: 4.5rem 3rem;
  border-radius: 32px;
  text-align: left;
  box-shadow: 0 25px 50px rgba(30, 27, 75, 0.15);
}

.case-banner h2 {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  color: #ffffff;
}

.case-banner p {
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.45;
  color: #cbd5e1;
}

.tariff-card {
  text-align: center;
  position: relative;
}

.tariff-card.pro-border {
  border: 2px solid transparent;
  background: linear-gradient(#fff, #fff) padding-box,
              linear-gradient(135deg, #7c3aed, #ec4899) border-box;
  box-shadow: 0 25px 50px rgba(124, 58, 237, 0.12);
}

.price-giant {
  font-size: 3.8rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  margin: 1rem 0;
  color: #0f172a;
}

.tag-popular {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, #f59e0b, #d97706);
  color: #ffffff;
  padding: 0.5rem 1.4rem;
  font-size: 0.8rem;
  font-weight: 900;
  border-radius: 50px;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 12px rgba(217, 119, 6, 0.3);
}

.tariff-note {
  margin-top: 1.5rem;
  font-size: 1rem !important;
  color: #94a3b8 !important;
}

.tariff-subtext {
  font-size: 1.35rem;
  font-weight: 800;
  margin-top: 3rem;
  color: #64748b;
}

.border-top-clean {
  border-top: 1px solid #e2e8f0;
  padding-top: 5rem;
}

.form-instruction {
  font-size: 1.35rem;
  font-weight: 700;
  color: #64748b;
  margin-bottom: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.form-container-giant {
  max-width: 550px;
  margin: 0 auto;
}

.form-layout {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.form-layout input {
  width: 100%;
  padding: 1.4rem;
  font-size: 1.15rem;
  font-weight: 700;
  background: #f8fafc;
  border: 2px solid #cbd5e1;
  color: #000000;
  border-radius: 16px;
  outline: none;
  transition: all 0.2s ease;
}

.form-layout input:focus {
  border-color: #7c3aed;
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.15);
}

.btn-giant {
  width: 100%;
  padding: 1.5rem;
  font-size: 1.4rem;
  font-weight: 900;
  background: linear-gradient(135deg, #7c3aed 0%, #4f46e5 100%);
  color: #ffffff;
  border: none;
  border-radius: 16px;
  cursor: pointer;
  box-shadow: 0 10px 25px rgba(124, 58, 237, 0.25);
  transition: all 0.2s ease;
}

.btn-giant:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(124, 58, 237, 0.35);
}

.footer-brand {
  margin-top: 3rem;
  font-size: 1.15rem;
  color: #94a3b8;
  font-weight: 800;
}

.form-message {
  font-size: 1.3rem;
  font-weight: 800;
  margin-top: 1.5rem;
}
.form-message.success { color: #10b981; }
.form-message.error { color: #ef4444; }

.footer-clean {
  border-top: 1px solid #e2e8f0;
  background: #ffffff;
  color: #94a3b8;
  font-size: 0.9rem;
  font-weight: 800;
}

.container-footer {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* МОБИЛЬНЫЙ АДАПТИВ С КОРРЕКТНЫМИ ВЫЧИСЛЕНИЯМИ */
@media (max-width: 768px) {
  .header {
    height: 60px; /* Уменьшаем высоту шапки на смартфонах */
  }

  .container { 
    padding: 3rem 1rem; 
  }

  /* ИСПРАВЛЕНО: Чистый пересчет высоты под мобильный хэдер (60px) без жестких паддингов */
  .hero-section { 
    height: calc(100dvh - 60px); 
    min-height: 400px;
  }
  
  .hero-section .container {
    padding-top: 1rem !important;
    padding-bottom: 1rem !important;
  }

  .mega-title { font-size: 1.9rem; margin-bottom: 1.5rem; }
  .mega-subtitle { font-size: 1.15rem; }
  .list-item-big { font-size: 1.2rem; margin: 1.2rem 0; }
  .icon-dot { font-size: 1.5rem; margin-right: 0.8rem; }
  .grid-layout { grid-template-columns: 1fr; gap: 1.5rem; }
  .card-giant, .compare-card, .tariff-card { padding: 2rem 1.25rem; border-radius: 20px; }
  .card-giant h2, .compare-card h2, .tariff-card h2 { font-size: 1.4rem; }
  .card-giant p, .compare-card p, .tariff-card p { font-size: 1.05rem; }
  .case-banner { padding: 2.5rem 1.25rem; border-radius: 20px; }
  .case-banner h2 { font-size: 1.45rem; }
  .case-banner p { font-size: 1.05rem; }
  .price-giant { font-size: 2.8rem; }
  .tariff-subtext { font-size: 1.1rem; }
  .form-instruction { font-size: 1.1rem; margin-bottom: 2rem; }
  .form-layout input { padding: 1.25rem; font-size: 1rem; border-radius: 12px; }
  .btn-giant { padding: 1.25rem; font-size: 1.2rem; border-radius: 12px; }
  .container-footer { padding: 1.5rem 1rem; }
}