/*
Theme Name: DM-Digital Bot Landing
Theme URI: https://dm-digital.net
Author: DM-Digital
Description: Одностраничная тема для презентации бота обработки заявок из Telegram и Авито.
Version: 1.3
Text Domain: dm-digital-bot-landing
*/

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

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #020509;
  color: #ffffff;
  line-height: 1.6;
}

a {
  color: #35b8ff;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Header & navigation */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(2, 5, 9, 0.94);
  backdrop-filter: blur(12px);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.logo {
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 14px;
}

.main-nav {
  display: flex;
  gap: 18px;
  align-items: center;
}

.main-nav a {
  font-size: 14px;
  opacity: 0.9;
}

/* Mobile nav toggle */

.nav-toggle {
  display: none;
  border: 1px solid rgba(255,255,255,0.2);
  background: transparent;
  color: #fff;
  padding: 8px 10px;
  border-radius: 999px;
  cursor: pointer;
  align-items: center;
  gap: 6px;
}

.nav-toggle-lines {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
}

.nav-toggle-line {
  width: 16px;
  height: 2px;
  background: #fff;
  border-radius: 999px;
}

/* Buttons */

.btn-primary,
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #26a2ff, #58e1ff);
  color: #020509;
  box-shadow: 0 10px 25px rgba(56, 190, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 35px rgba(56, 190, 255, 0.45);
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.16);
  color: #ffffff;
  background: transparent;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* Hero */

.hero {
  position: relative;
  padding: 140px 20px 120px;
  background: radial-gradient(circle at top left, rgba(40, 180, 255, 0.18), transparent 55%),
              radial-gradient(circle at bottom right, rgba(122, 84, 255, 0.16), transparent 55%),
              #020509;
  overflow: hidden;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1.1fr);
  gap: 40px;
  align-items: center;
}

.hero-title {
  font-size: 40px;
  line-height: 1.15;
  margin: 0 0 16px;
}

.hero-subtitle {
  font-size: 16px;
  max-width: 520px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 26px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.hero-badge {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.9;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-note {
  margin-top: 18px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}

.hero-visual {
  position: relative;
}

.hero-visual-inner {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  background: radial-gradient(circle at top, rgba(44, 190, 255, 0.3), transparent 55%);
}

.hero-visual-inner img {
  width: 100%;
  display: block;
}

/* Sections */

.section {
  padding: 80px 20px;
}

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-size: 28px;
  margin: 0 0 12px;
}

.section-subtitle {
  margin: 0 0 32px;
  color: rgba(255, 255, 255, 0.72);
}

/* Features grid */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.feature-card {
  padding: 20px 18px;
  border-radius: 20px;
  background: radial-gradient(circle at top left, rgba(56, 190, 255, 0.12), transparent 60%),
              rgba(15, 25, 40, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.feature-title {
  font-size: 16px;
  margin: 0 0 8px;
}

.feature-text {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

/* Steps */

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.step-card {
  padding: 20px 18px;
  border-radius: 18px;
  background: rgba(11, 18, 30, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.step-index {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #35b8ff;
  margin-bottom: 8px;
}

/* Tariffs */

.tariffs-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.tariff-card {
  padding: 24px 22px;
  border-radius: 22px;
  background: radial-gradient(circle at top right, rgba(56, 190, 255, 0.22), transparent 60%),
              rgba(10, 18, 30, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.tariff-title {
  font-size: 18px;
  margin: 0 0 6px;
}

.tariff-price {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
}

.tariff-note {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

/* Demo */

.demo-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}

.demo-box {
  padding: 22px 20px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(10, 16, 26, 0.98);
}

.demo-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 6px;
}

/* Contacts */

.contacts-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  font-size: 14px;
}

.contact-card {
  padding: 18px 16px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(10, 16, 26, 0.96);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.faq-item {
  padding: 20px 18px;
  border-radius: 18px;
  background: rgba(10, 16, 26, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.faq-question {
  margin: 0 0 8px;
  font-size: 16px;
}

.faq-answer {
  margin: 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

/* Footer */

.site-footer {
  padding: 24px 20px 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: #020509;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

/* Section CTA */

.section-cta {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.section-cta-note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}

.section-cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* Responsive */

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }
  .hero {
    padding-top: 120px;
  }
  .features-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .steps-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .tariffs-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .demo-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .main-nav {
    display: none;
    flex-direction: column;
    width: 100%;
    gap: 10px;
    margin-top: 8px;
  }
  .main-nav.main-nav--open {
    display: flex;
  }
  .nav-toggle {
    display: inline-flex;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 110px 16px 80px;
  }
  .section {
    padding: 64px 16px;
  }
  .features-grid,
  .steps-grid,
  .contacts-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .hero-cta,
  .section-cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  .btn-primary,
  .btn-outline {
    width: 100%;
    justify-content: center;
  }
}

/* Адаптив для мобильных FAQ*/

@media (max-width: 640px) {
  .faq-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}