@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  --font-sans: 'Plus Jakarta Sans', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --page-bg: linear-gradient(180deg, #f8fbff 0%, #eef2f7 100%);
  --surface: #ffffff;
  --surface-alt: #f5f7fb;
  --border: #d9dde6;
  --shadow-soft: 0 18px 35px rgba(15, 23, 42, 0.08);
  --text-primary: #101828;
  --text-secondary: #475467;
  --text-muted: #667085;
  --accent-blue: #1d4ed8;
  --accent-red: #dc2626;
  --accent-light: rgba(29, 78, 216, 0.08);
  --accent-gradient: linear-gradient(135deg, #dc2626 0%, #1d4ed8 100%);
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --max-width: 1160px;
  --transition-base: 180ms ease;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text-primary);
  line-height: 1.65;
  background: var(--page-bg);
  min-height: 100vh;
}

a {
  color: var(--accent-blue);
  text-decoration: none;
}

a:hover,
a:focus {
  color: var(--accent-red);
}

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

.page-shell {
  position: relative;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(217, 221, 230, 0.9);
  box-shadow: 0 5px 18px rgba(15, 23, 42, 0.05);
}

.site-header .inner {
  margin: 0 auto;
  max-width: var(--max-width);
  padding: 1rem 1.75rem;
  display: flex;
  align-items: center;
  gap: 1.75rem;
}


.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-logo {
  width: 96px;
  height: 96px;
  border-radius: 12px;
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.12);
  border: 1px solid rgba(15, 23, 42, 0.07);
  object-fit: cover;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.brand-name {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-tagline {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.primary-nav-container {
  margin-left: auto;
  display: flex;
  align-items: center;
  position: relative;
}

.primary-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid transparent;
  transition: var(--transition-base);
}

.nav-link:hover,
.nav-link:focus {
  color: var(--accent-blue);
  border-color: rgba(29, 78, 216, 0.25);
  background: rgba(29, 78, 216, 0.08);
}

.nav-link.active {
  color: var(--accent-red);
  border-color: rgba(220, 38, 38, 0.28);
  background: rgba(220, 38, 38, 0.1);
}

.nav-link.cta {
  color: #ffffff;
  background: var(--accent-gradient);
  border: none;
  padding: 0.5rem 1.2rem;
}

.nav-link.cta:hover,
.nav-link.cta:focus {
  transform: translateY(-1px);
  box-shadow: 0 16px 28px rgba(29, 78, 216, 0.22);
}

.hero {
  position: relative;
  margin: 0;
  padding: 5rem 1.75rem 4rem;
  background: linear-gradient(135deg, rgba(29, 78, 216, 0.08) 0%, rgba(255, 255, 255, 0.9) 60%);
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 85% 20%, rgba(220, 38, 38, 0.08), transparent 55%);
  pointer-events: none;
}

.hero .inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-content {
  max-width: 720px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(220, 38, 38, 0.12);
  color: var(--accent-red);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 1.2rem 0 1.5rem;
  font-size: clamp(2.4rem, 4vw, 3.1rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
}

.hero p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.2rem;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.75rem 1.35rem;
  border-radius: 14px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition-base);
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 18px 32px rgba(29, 78, 216, 0.25);
}

.btn-primary:hover,
.btn-primary:focus {
  transform: translateY(-1px);
  box-shadow: 0 22px 38px rgba(220, 38, 38, 0.25);
}

.btn-secondary {
  background: #ffffff;
  border-color: rgba(29, 78, 216, 0.3);
  color: var(--accent-blue);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background: rgba(29, 78, 216, 0.08);
}

.content-section {
  padding: 4.25rem 1.75rem 3.25rem;
  scroll-margin-top: 160px;
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem;
  margin-bottom: 2.4rem;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.7rem, 3.2vw, 2.3rem);
  letter-spacing: -0.01em;
}

.section-heading p {
  margin: 0;
  color: var(--text-secondary);
  max-width: 520px;
}

.panel-grid {
  display: grid;
  gap: 1.75rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.panel-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.panel-card h3 {
  margin-top: 0;
}

.panel-card p {
  color: var(--text-secondary);
}

.step-list {
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
}

.step-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  align-items: start;
}

.step-index {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: rgba(29, 78, 216, 0.12);
  color: var(--accent-blue);
  display: grid;
  place-items: center;
  font-weight: 600;
}

.quick-links {
  margin-top: 1.4rem;
  display: grid;
  gap: 0.75rem;
}

.quick-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  background: rgba(29, 78, 216, 0.08);
  border: 1px solid rgba(29, 78, 216, 0.15);
  color: var(--text-secondary);
  font-weight: 500;
  transition: var(--transition-base);
}

.quick-link:hover,
.quick-link:focus {
  color: var(--accent-blue);
  border-color: rgba(29, 78, 216, 0.35);
}

.tips-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.tip-card {
  padding: 1.4rem;
  border-radius: var(--radius-md);
  background: rgba(15, 23, 42, 0.04);
  border: 1px solid rgba(15, 23, 42, 0.08);
  color: var(--text-secondary);
}

.tip-card strong {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--accent-blue);
}

.app-grid {
  display: grid;
  gap: 1.9rem;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.app-card {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 1.9rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.app-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 40px rgba(15, 23, 42, 0.12);
  border-color: rgba(29, 78, 216, 0.22);
}

.app-header {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.app-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  box-shadow: 0 12px 22px rgba(15, 23, 42, 0.12);
  border: 1px solid rgba(15, 23, 42, 0.06);
}

.app-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
}

.app-subtitle {
  margin: 0.1rem 0 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.app-purpose {
  margin: 0;
  color: var(--text-secondary);
}

.app-meta {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
  color: var(--text-secondary);
}

.app-meta span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: rgba(15, 23, 42, 0.06);
  color: var(--accent-blue);
  font-size: 0.8rem;
  margin-right: 0.55rem;
}

.app-meta li {
  display: flex;
  align-items: flex-start;
}

.app-highlights {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text-secondary);
}

.app-highlights li {
  margin-bottom: 0.35rem;
}

.app-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.app-button {
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  color: #ffffff;
  background: var(--accent-gradient);
  border: none;
  box-shadow: 0 10px 24px rgba(29, 78, 216, 0.22);
  transition: var(--transition-base);
}

.app-button:hover,
.app-button:focus {
  transform: translateY(-2px);
}

.app-button.alt {
  background: #ffffff;
  color: var(--accent-blue);
  border: 1px solid rgba(15, 23, 42, 0.12);
  box-shadow: none;
}

.app-button.alt:hover,
.app-button.alt:focus {
  background: rgba(29, 78, 216, 0.08);
}

.screenshot-strip {
  display: flex;
  gap: 0.65rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
}

.screenshot-strip img {
  width: 128px;
  height: 230px;
  border-radius: 16px;
  object-fit: cover;
  border: 1px solid rgba(209, 213, 219, 0.8);
  box-shadow: 0 18px 28px rgba(15, 23, 42, 0.12);
  transition: transform var(--transition-base);
}

.screenshot-strip img:hover {
  transform: translateY(-4px);
}

.footer {
  background: rgba(255, 255, 255, 0.92);
  border-top: 1px solid var(--border);
  padding: 3rem 1.75rem 2.75rem;
}

.footer .inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.75rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-note {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: none;
  background: var(--accent-gradient);
  color: #ffffff;
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 18px 32px rgba(29, 78, 216, 0.25);
  display: grid;
  place-items: center;
  transform: translateY(80px);
  opacity: 0;
  transition: transform var(--transition-base), opacity var(--transition-base);
  z-index: 950;
}

.back-to-top.visible {
  transform: translateY(0);
  opacity: 1;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 960px) {
  .site-header .inner {
    flex-wrap: wrap;
  }

  .primary-nav {
    width: 100%;
    justify-content: flex-start;
  }

  .hero {
    padding-top: 4.2rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .site-header .inner,
  .content-section,
  .hero {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .content-section {
    scroll-margin-top: 210px;
  }

  .site-header .inner {
    gap: 1rem;
    padding-top: 0.85rem;
    padding-bottom: 0.85rem;
  }

  .brand {
    align-items: center;
  }

  .brand-logo {
    width: 64px;
    height: 64px;
  }

  .brand-name {
    font-size: 1.05rem;
  }

  .brand-tagline {
    font-size: 0.82rem;
  }

  .primary-nav-container {
    width: 100%;
    overflow: hidden;
    position: relative;
  }

  .primary-nav {
    margin-left: 0;
    width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
    gap: 0.5rem;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .primary-nav::-webkit-scrollbar {
    display: none;
  }

  .primary-nav-container::before,
  .primary-nav-container::after {
    content: '';
    position: absolute;
    top: 6px;
    bottom: 6px;
    width: 44px;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-base);
    border-radius: 999px;
  }

  .primary-nav-container::after {
    right: 0;
    background: linear-gradient(270deg, rgba(248, 251, 255, 0.96), rgba(248, 251, 255, 0));
  }

  .primary-nav-container::before {
    left: 0;
    background: linear-gradient(90deg, rgba(248, 251, 255, 0.96), rgba(248, 251, 255, 0));
  }

  .primary-nav-container.show-right-shadow::after {
    opacity: 1;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 12 12'%3E%3Cpath stroke='%231D4ED8' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M4 3l3 3-3 3'/%3E%3C/svg%3E"), linear-gradient(270deg, rgba(248, 251, 255, 0.96), rgba(248, 251, 255, 0));
    background-repeat: no-repeat, no-repeat;
    background-size: 16px 16px, 100% 100%;
    background-position: center right 12px, right center;
  }

  .primary-nav-container.show-left-shadow::before {
    opacity: 1;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 12 12'%3E%3Cpath stroke='%231D4ED8' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M8 3L5 6l3 3'/%3E%3C/svg%3E"), linear-gradient(90deg, rgba(248, 251, 255, 0.96), rgba(248, 251, 255, 0));
    background-repeat: no-repeat, no-repeat;
    background-size: 16px 16px, 100% 100%;
    background-position: center left 12px, left center;
  }

  .nav-link {
    white-space: nowrap;
    padding: 0.4rem 0.75rem;
    font-size: 0.85rem;
  }

  .app-card {
    padding: 1.5rem;
  }

  .footer-meta,
  .footer-nav {
    gap: 0.75rem 1.1rem;
  }

  .back-to-top {
    right: 18px;
    bottom: 22px;
  }
}