:root {
  --bg-second-color: #e5dfd3;
  --bg-color: #f9f6ee;
  --card-bg: #fff;
  --text-primary: #14284b;
  --text-secondary: #666;
  --text-h1-span-color: #e42754;
  --accent-primary: #e42754;
  --accent-primary-color: #fff;
  --accent-hover: #e42754;
  --accent-glow: rgba(99, 102, 241, 0.35);
  --border-color: #14284b;
  --success-color: #1f7559;
  --success-color-bg: rgba(16, 185, 129, 0.1);
}

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

body {
  font-family: "Inter", sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100vh;
}

.pre-main {
  display: flex;
  justify-content: space-around;
  padding: 70px 20px;
}
.pre-main.noPadding {
  padding: 0 20px;
}
.pre-main > .main {
  max-width: 1200px;
  width: 100%;
}

h1 {
}

/* Header */
header {
  padding: 20px 0;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  background-color: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(12px);
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
}

.logo span > span {
  color: var(--accent-primary);
  padding-left: 5px;
}

.logo > img {
  height: 51px;
  padding-right: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: var(--accent-primary-color);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
}

.btn-outline {
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  background: transparent;
}

.btn-outline:hover {
  border-color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.1);
}

/* Hero */
.hero {
  padding: 90px 0 60px;
  text-align: center;
}

.badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid var(--accent-primary);
  border-radius: 50px;
  color: var(--accent-primary);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
}

.hero h1 span {
  color: var(--text-h1-span-color);
}

.hero p {
  font-size: 19px;
  color: var(--text-secondary);
  max-width: 780px;
  margin: 0 auto 36px;
}

/* Audience Section */
.audience {
  padding: 60px 0;
  background-color: var(--bg-second-color);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-title {
  text-align: center;
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 40px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.card {
  background-color: var(--card-bg);
  padding: 32px;
  border-radius: 16px;
  border: 1px solid var(--border-color);
}

.card-icon {
  font-size: 32px;
  margin-bottom: 16px;
}

.card h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.card p {
  color: var(--text-secondary);
  font-size: 15px;
}

/* How it works */
.how-it-works {
  padding: 80px 0;
}

.hybrid-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--success-color-bg);
  border: 1px solid var(--success-color);
  color: var(--success-color);
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 13px;
  margin-bottom: 12px;
}

/* Pricing Section */
.pricing {
  padding: 80px 0;
  background-color: rgba(30, 41, 59, 0.3);
  border-top: 1px solid var(--border-color);
}

.pricing-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 40px 32px;
  text-align: center;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.pricing-card.popular {
  border-color: var(--accent-primary);
  box-shadow: 0 0 30px var(--accent-glow);
}

.popular-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-primary);
  color: #fff;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.price {
  font-size: 40px;
  font-weight: 800;
  margin: 20px 0;
}

.price span {
  font-size: 16px;
  color: var(--text-secondary);
  font-weight: 400;
}

.features-list {
  list-style: none;
  text-align: left;
  margin: 24px 0 32px;
}

.features-list li {
  padding: 8px 0;
  color: var(--text-secondary);
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.features-list li::before {
  content: "✓";
  color: var(--success-color);
  font-weight: bold;
}

/* Footer */
footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 14px;
  text-align: center;
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 32px;
  }
  .hero p {
    font-size: 16px;
  }
}

/* ==========================================================
   НОВЫЙ БЛОК: ДЕРЕВО ЧЕКБОКСОВ (СОГЛАШЕНИЯ)
   ========================================================== */
.terms-wrapper {
  background-color: #fff;
  border: 1px solid var(--border-color, #334155);
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 25px;
}

.terms-main-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary, #f8fafc);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color, #334155);
  margin-bottom: 14px;
}

.terms-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-left: 10px;
}

.terms-sub-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--text-secondary, #94a3b8);
  line-height: 1.4;
}

.terms-sub-item a {
  color: var(--accent-primary, #6366f1);
  text-decoration: underline;
  transition: color 0.2s;
}

.terms-sub-item a:hover {
  color: var(--text-primary, #f8fafc);
}

/* Кастомные крупные галочки */
.terms-wrapper input[type="checkbox"] {
  width: 20px;
  height: 20px;
  min-width: 20px;
  min-height: 20px;
  accent-color: var(--accent-primary, #6366f1);
  cursor: pointer;
  margin-top: 2px;
}

.optional-badge {
  font-size: 12px;
  background: var(--border-color, #334155);
  color: var(--text-secondary, #94a3b8);
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 4px;
  white-space: nowrap;
}

/* ==========================================================
   НОВЫЙ БЛОК: ИНФОРМАТОР О ЗАБЛОКИРОВАННЫХ КНОПКАХ
   ========================================================== */
.auth-notice {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid #ef4444;
  color: var(--accent-primary);
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 14px;
  margin-bottom: 20px;
  transition:
    opacity 0.3s,
    display 0.3s;
}

.auth-notice.valid {
  background: rgba(16, 185, 129, 0.15);
  border-color: var(--success-color);
  color: var(--success-color);
}

/* Кнопки и обёртки с подсказками */
.btn-tooltip-wrapper {
  position: relative;
  width: 100%;
}

.btn-tooltip-wrapper[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 105%;
  left: 50%;
  transform: translateX(-50%);
  background: #0f172a;
  color: #f8fafc;
  border: 1px solid var(--border-color, #334155);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  white-space: nowrap;
  z-index: 100;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  pointer-events: none;
}

/* ==========================================================
   КНОПКИ И ПОЛЯ ВВОДА
   ========================================================== */
.vk-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 16px;
  background-color: #0077ff;
  color: #ffffff;
  border: none;
  border-radius: 12px;
  font-weight: 700;
  font-size: 17px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.vk-btn:hover:not(:disabled) {
  background-color: #0066cc;
  box-shadow: 0 0 20px rgba(0, 119, 255, 0.4);
}

.vk-btn:disabled,
.auth-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  filter: grayscale(80%);
  box-shadow: none !important;
}

.divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 25px 0;
  color: var(--text-secondary, #94a3b8);
  font-size: 15px;
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  border-bottom: 1px solid var(--border-color, #334155);
}

.divider::before {
  margin-right: 15px;
}
.divider::after {
  margin-left: 15px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 15px;
  color: var(--text-primary, #f8fafc);
  font-weight: 600;
}

.form-input {
  width: 100%;
  padding: 15px 16px;
  background-color: var(--bg-color, #0f172a);
  border: 1px solid var(--border-color, #334155);
  border-radius: 12px;
  font-size: 17px;
  color: var(--text-primary, #f8fafc);
  box-sizing: border-box;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-primary, #6366f1);
  box-shadow: 0 0 15px var(--accent-glow, rgba(99, 102, 241, 0.35));
}

.phone-error-msg {
  color: #ef4444;
  font-size: 14px;
  margin-top: 6px;
  display: none;
}

.auth-btn {
  width: 100%;
  padding: 16px;
  background-color: var(--accent-primary, #6366f1);
  color: #ffffff;
  border: none;
  border-radius: 12px;
  font-weight: 700;
  font-size: 17px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.auth-btn:hover:not(:disabled) {
  background-color: var(--accent-hover, #4f46e5);
  box-shadow: 0 0 20px var(--accent-glow, rgba(99, 102, 241, 0.35));
}

/* Адаптация intl-tel-input под темную тему */
.iti {
  width: 100%;
}
.iti__country-list {
  background-color: var(--card-bg, #1e293b);
  border: 1px solid var(--border-color, #334155);
  color: var(--text-primary, #f8fafc);
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}
.iti__country:hover,
.iti__country.iti__highlight {
  background-color: var(--border-color, #334155);
}
.iti__selected-dial-code {
  color: var(--text-primary, #f8fafc);
  font-size: 16px;
}

/* SMS.ru Call-In Block */
.callin-block {
  display: none;
  background: rgba(99, 102, 241, 0.1);
  border: 1px dashed var(--accent-primary, #6366f1);
  border-radius: 14px;
  padding: 20px;
  text-align: center;
  margin-top: 20px;
}

.callin-number {
  font-size: 26px;
  font-weight: 800;
  color: var(--accent-primary, #6366f1);
  letter-spacing: 1.5px;
  margin: 12px 0;
}

.callin-status {
  font-size: 15px;
  color: var(--success-color, #10b981);
  font-weight: 600;
}