:root {
  --bg-dark: #0f1021;
  --bg-card: #1a1b2e;
  --bg-card-elevated: #252640;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --accent-purple: #8b5cf6;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border: rgba(255, 255, 255, 0.08);
  --glass-bg: rgba(26, 27, 46, 0.85);
  --radius: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography & Helpers */
.gradient-text {
  background: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  background: rgba(15, 16, 33, 0.92);
  backdrop-filter: blur(16px);
  z-index: 1000;
  border-bottom: 1px solid var(--border);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-purple) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
}

.logo-text {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.5px;
  color: #fff;
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-shrink: 1;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  white-space: nowrap;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--primary);
}

.nav-mobile-only {
  display: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.btn:focus-visible,
.nav-link:focus-visible,
.footer-link:focus-visible,
.faq-question:focus-visible,
.menu-toggle:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 6px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.5);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  border: 1px solid var(--border);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--primary);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
  border-radius: 14px;
}

.block-btn {
  width: 100%;
  margin-top: 20px;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background-color: #fff;
}

/* Hero */
.hero {
  position: relative;
  padding: 160px 0 100px;
  background: radial-gradient(circle at 50% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 60%);
}

.hero-glow {
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.25) 0%, transparent 70%);
  filter: blur(80px);
  z-index: 0;
}

.hero-container {
  position: relative;
  z-index: 1;
  text-align: center;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 20px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #22c55e;
  box-shadow: 0 0 10px #22c55e;
}

.hero-title {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 40px;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 60px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  padding: 24px;
  border-radius: 20px;
  border: 1px solid var(--border);
}

.stat-value {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

/* Sections */
.section {
  padding: 100px 0;
}

.section-dark {
  background-color: #0b0c19;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-title {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-muted);
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
}

.icon-purple { background: rgba(139, 92, 246, 0.15); }
.icon-blue { background: rgba(59, 130, 246, 0.15); }
.icon-green { background: rgba(34, 197, 94, 0.15); }

.card-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.card-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.card-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 13px;
}

/* Steps Grid */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
}

.step-number {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  opacity: 0.6;
  margin-bottom: 12px;
}

.step-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 14px;
  color: var(--text-muted);
}

.step-desc code {
  background: var(--bg-card-elevated);
  padding: 2px 6px;
  border-radius: 4px;
  color: #a855f7;
  font-size: 12px;
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px 30px;
  text-align: center;
  position: relative;
}

.featured-card {
  border-color: var(--primary);
  box-shadow: 0 0 40px rgba(99, 102, 241, 0.2);
}

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

.plan-name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.plan-price {
  font-size: 44px;
  font-weight: 800;
  color: #fff;
}

.plan-period {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
  margin-bottom: 24px;
  font-size: 14px;
}

/* Partner Box */
.partner-box {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(139, 92, 246, 0.15) 100%);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 24px;
  padding: 60px 40px;
  text-align: center;
}

.partner-title {
  font-size: 32px;
  font-weight: 800;
  margin: 16px 0;
}

.partner-desc {
  max-width: 680px;
  margin: 0 auto 24px;
  color: var(--text-muted);
}

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 14px;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

/* Footer */
.footer {
  background: #080914;
  border-top: 1px solid var(--border);
  padding: 60px 0 30px;
}

.footer-container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-desc {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 12px;
  max-width: 320px;
}

.footer-heading {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-link {
  display: block;
  color: var(--text-muted);
  text-decoration: none;
  margin-bottom: 8px;
  font-size: 14px;
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
}

/* Mobile responsive */
@media (max-width: 1100px) {
  .nav {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .nav.active {
    display: flex;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(15, 16, 33, 0.98);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 8px 24px 16px;
    z-index: 999;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }
  .nav.active .nav-link {
    width: 100%;
    padding: 14px 4px;
    font-size: 16px;
    border-bottom: 1px solid var(--border);
  }
  .nav.active .nav-mobile-only {
    display: block;
    color: var(--primary);
    font-weight: 700;
    border-bottom: none;
    margin-top: 8px;
  }
}

@media (max-width: 992px) {
  .services-grid, .steps-grid, .pricing-grid {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 36px;
  }
  .footer-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero-stats {
    grid-template-columns: 1fr;
    text-align: left;
    gap: 20px;
  }
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 600px) {
  .header-actions {
    gap: 8px;
  }
  #startBotBtn {
    display: none;
  }
  .btn {
    padding: 8px 14px;
    font-size: 13px;
  }
  .hero .btn-lg {
    padding: 12px 20px;
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}