:root {
  --blue-900: #0b2f4f;
  --blue-800: #0f4c81;
  --blue-700: #1d6fb3;
  --blue-500: #2f7bc1;
  --blue-100: #e9f2ff;
  --gray-900: #14222f;
  --gray-700: #475566;
  --gray-500: #647487;
  --gray-200: #e5ecf5;
  --gray-100: #f4f7fb;
  --white: #ffffff;
  --shadow-soft: 0 16px 40px rgba(15, 76, 129, 0.12);
  --shadow-card: 0 8px 24px rgba(15, 76, 129, 0.08);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --container: 1200px;
  --font-head: "Manrope", "Segoe UI", sans-serif;
  --font-body: "Source Sans 3", "Segoe UI", sans-serif;
  --header-h: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--gray-900);
  background: radial-gradient(1200px 600px at 80% -20%, #eef5ff 0%, transparent 60%),
    radial-gradient(900px 500px at -10% 0%, #f0f6ff 0%, transparent 55%),
    var(--gray-100);
  line-height: 1.65;
}

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

a {
  color: inherit;
  text-decoration: none;
}

p {
  margin: 0 0 16px;
}

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

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--blue-900);
}

.logo-img {
  height: 36px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  gap: 22px;
  font-weight: 600;
  color: var(--gray-700);
}

.nav-links a {
  position: relative;
  padding: 6px 0;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--blue-700);
  transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after {
  width: 100%;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  font-family: var(--font-body);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-800), var(--blue-500));
  color: var(--white);
  box-shadow: var(--shadow-card);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
}

.btn-secondary {
  background: var(--white);
  color: var(--blue-800);
  border-color: var(--gray-200);
}

.btn-secondary:hover {
  border-color: var(--blue-500);
  color: var(--blue-700);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  padding: 6px;
}

.hero {
  padding: 72px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px;
  align-items: center;
}

.hero h1 {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 3vw, 3.4rem);
  line-height: 1.1;
  margin: 0 0 16px;
  color: var(--blue-900);
}

.hero p {
  font-size: 1.1rem;
  color: var(--gray-700);
  margin: 0 0 18px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--gray-200);
}

.hero-card img {
  border-radius: 14px;
}

.app-shot {
  margin: 0;
}

.app-shot img {
  width: 100%;
  height: auto;
  border-radius: 14px;
  box-shadow: var(--shadow-card);
}

.app-shot figcaption {
  margin-top: 12px;
  color: var(--gray-700);
  font-size: 0.95rem;
}

.screenshot-block {
  margin-top: 28px;
}

.section {
  padding: 64px 0;
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 2.3vw, 2.4rem);
  margin: 0 0 12px;
  color: var(--blue-900);
}

.section-subtitle {
  color: var(--gray-700);
  max-width: 720px;
  margin: 0 0 18px;
}

.grid-3,
.grid-4 {
  display: grid;
  gap: 22px;
  margin-top: 28px;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 22px;
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

.card h3 {
  font-family: var(--font-head);
  margin: 0 0 10px;
  color: var(--blue-900);
}

.card p {
  margin: 0 0 10px;
  color: var(--gray-700);
}

.list {
  margin: 12px 0 0;
  padding-left: 22px;
  color: var(--gray-700);
}

.list li {
  margin-bottom: 8px;
}

.icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--blue-100);
  display: grid;
  place-items: center;
  color: var(--blue-700);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--blue-100);
  color: var(--blue-800);
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
}

.cta {
  background: linear-gradient(135deg, #eff5ff 0%, #ffffff 60%);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.cta h2 {
  font-family: var(--font-head);
  margin: 0 0 8px;
  color: var(--blue-900);
}

.footer {
  padding: 40px 0;
  border-top: 1px solid var(--gray-200);
  color: var(--gray-500);
  font-size: 0.95rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-logo {
  height: 24px;
}

.form {
  display: grid;
  gap: 16px;
  margin-top: 12px;
}

.input,
.textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--gray-200);
  background: var(--white);
  font-family: var(--font-body);
}

.textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-page {
  padding-top: var(--header-h);
}

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

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px;
  align-items: start;
}

.contact-info p {
  margin-bottom: 18px;
}

.contact-lines {
  display: grid;
  gap: 12px;
  color: var(--gray-700);
}

.contact-line {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: baseline;
  line-height: 1.6;
}

.contact-line span:first-child {
  font-weight: 600;
  color: var(--gray-700);
}

.contact-form .form {
  margin-top: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .logo-img {
    height: 28px;
  }

  .nav-links {
    position: absolute;
    top: 70px;
    right: 24px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 16px;
    padding: 18px;
    flex-direction: column;
    gap: 12px;
    box-shadow: var(--shadow-card);
    display: none;
  }

  .nav-open .nav-links {
    display: flex;
  }

  .nav-cta {
    display: none;
  }

  .mobile-toggle {
    display: inline-flex;
  }

  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}