:root {
  --bg-primary: #0b0f17;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-card-hover: rgba(31, 41, 55, 0.8);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #3b82f6;
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  --accent-primary: #3b82f6;
  --accent-primary-hover: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.25);
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  --max-width: 1200px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

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

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background-color: rgba(11, 15, 23, 0.75);
  border-bottom: 1px solid var(--border-color);
  padding: 18px 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-badge {
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 900;
  box-shadow: 0 0 15px var(--accent-glow);
}

.logo-img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--bg-card);
}

.lang-option {
  min-width: 40px;
  min-height: 36px;
  padding: 0 8px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: var(--transition);
}

.lang-option:hover {
  color: var(--text-main);
}

.lang-option.active {
  background-color: var(--accent-primary);
  color: #fff;
}

.lang-option:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

@media (pointer: coarse) {
  .lang-option {
    min-width: 44px;
    min-height: 44px;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover {
  background-color: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

.hero {
  padding: 90px 0 60px;
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, rgba(11, 15, 23, 0) 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 50px;
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background-color: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.25);
  color: #60a5fa;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, #60a5fa, #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-badges {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero-badge-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.mockup-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
}

.phone-mockup {
  width: 290px;
  height: 590px;
  background-color: #1c1c21;
  border: 8px solid #2d2d38;
  border-radius: 42px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), 0 0 40px rgba(59, 130, 246, 0.2);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.phone-notch {
  width: 110px;
  height: 18px;
  background-color: #2d2d38;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
  z-index: 10;
}

.mockup-screen {
  flex: 1;
  padding: 32px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.mockup-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
}

.mockup-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.mockup-badge {
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 6px;
  background-color: rgba(16, 185, 129, 0.15);
  color: #34d399;
  font-weight: 600;
}

.mockup-card {
  background-color: #26262c;
  border-radius: 12px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.mockup-card-title {
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
}

.mockup-card-sub {
  font-size: 0.72rem;
  color: var(--text-dim);
}

.mockup-table-preview {
  background-color: #26262c;
  border-radius: 12px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.mockup-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  padding: 6px 8px;
  border-radius: 6px;
  background-color: #1e1e24;
}

.section {
  padding: 90px 0;
}

.section-alt {
  background-color: var(--bg-secondary);
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 60px;
}

.section-tag {
  color: #3b82f6;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.section-description {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.card:hover {
  background-color: var(--bg-card-hover);
  border-color: rgba(59, 130, 246, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(59, 130, 246, 0.1);
  color: #3b82f6;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 22px;
}

.card-icon.success {
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
}

.card-icon.warning {
  background: rgba(245, 158, 11, 0.1);
  color: #f59e0b;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.card-text {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.pricing-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card.featured {
  border-color: #3b82f6;
  background: linear-gradient(180deg, rgba(59, 130, 246, 0.08) 0%, rgba(17, 24, 39, 0.95) 100%);
  box-shadow: 0 0 40px rgba(59, 130, 246, 0.2);
}

.pricing-badge {
  position: absolute;
  top: 20px;
  right: 24px;
  background-color: #3b82f6;
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.pricing-name {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.pricing-tagline {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.pricing-price {
  font-size: 2.8rem;
  font-weight: 900;
  margin-bottom: 6px;
}

.pricing-price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
}

.pricing-notes {
  font-size: 0.85rem;
  color: #34d399;
  font-weight: 600;
  margin-bottom: 28px;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 36px;
  flex: 1;
}

.pricing-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-main);
}

.pricing-feature-item.muted {
  color: var(--text-dim);
}

.faq-list {
  max-width: 750px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.faq-question {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  user-select: none;
}

.faq-icon {
  font-size: 1.2rem;
  color: var(--text-muted);
  transition: transform 0.25s ease;
}

.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
  display: none;
  line-height: 1.6;
}

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

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  color: #3b82f6;
}

.cta-box {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2) 0%, rgba(17, 24, 39, 0.95) 100%);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-box p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 32px;
}

.footer {
  background-color: #070a10;
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px;
  font-size: 0.9rem;
  color: var(--text-dim);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-col-title {
  color: var(--text-main);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 24px;
}

.content-page {
  padding: 60px 0 90px;
}

.content-wrapper {
  max-width: 820px;
  margin: 0 auto;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 48px;
}

.content-title {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.content-meta {
  color: var(--text-dim);
  font-size: 0.88rem;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 18px;
}

.content-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 32px 0 14px;
  color: var(--text-main);
}

.content-body h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 24px 0 10px;
}

.content-body p, .content-body ul, .content-body ol {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 18px;
  line-height: 1.7;
}

.content-body ul, .content-body ol {
  padding-left: 24px;
}

.content-body li {
  margin-bottom: 8px;
}

.highlight-box {
  background-color: rgba(59, 130, 246, 0.08);
  border-left: 4px solid #3b82f6;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px;
  margin: 24px 0;
  color: var(--text-main);
}

@media (max-width: 1024px) {
  .nav {
    gap: 16px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-description {
    margin: 0 auto 36px;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-badges {
    justify-content: center;
  }
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 2.4rem;
  }
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--bg-secondary);
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
  }
  .nav.open {
    display: flex;
  }
  .lang-option {
    min-width: 48px;
    min-height: 44px;
    font-size: 0.85rem;
  }
  .menu-toggle {
    display: block;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  .content-wrapper {
    padding: 24px;
  }
}