@import url("https://fonts.googleapis.com/css2?family=Manrope:wght@300;400;500;600;700&display=swap");

:root {
  /* Color system */
  --color-white: #ffffff;
  --color-milk-100: #f7f8fa;
  --color-milk-200: #f2f4f7;
  --color-text-900: #1f2937;
  --color-text-800: #2a2a2a;
  --color-text-600: #6b7280;
  --color-text-500: #7a7a7a;
  --color-sky-500: #4fa3d1;
  --color-sky-700: #1e6fb9;
  --color-teal-500: #3fb7a5;
  --color-teal-700: #2f9e8f;
  --color-indigo-500: #4f5bd5;
  --color-indigo-700: #3a47a5;

  /* Gradients */
  --gradient-hero: linear-gradient(135deg, #1e6fb9 0%, #4fa3d1 45%, #3fb7a5 100%);
  --gradient-soft: linear-gradient(180deg, #f7f8fa 0%, #ffffff 100%);

  /* Typography */
  --font-sans: "Manrope", "SF Pro Text", "Inter", "Segoe UI", sans-serif;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --line-height-body: 1.55;
  --line-height-title: 1.2;

  /* Layout */
  --container-max: 1120px;
  --section-gap: clamp(64px, 9vw, 120px);
  --card-radius: 18px;
  --button-radius: 12px;
  --shadow-soft: 0 10px 30px rgba(31, 41, 55, 0.08);
  --border-soft: 1px solid rgba(31, 41, 55, 0.08);

  /* Spacing scale */
  --space-4: 4px;
  --space-8: 8px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;
  --space-40: 40px;
  --space-48: 48px;
  --space-64: 64px;
}

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-900);
  background: var(--gradient-soft);
  line-height: var(--line-height-body);
}

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

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

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

.section {
  padding: var(--section-gap) 0;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  line-height: var(--line-height-title);
  margin: 0 0 var(--space-16);
  font-weight: var(--font-weight-semibold);
}

.section-lead {
  font-size: clamp(16px, 2.4vw, 20px);
  color: var(--color-text-600);
  margin: 0 0 var(--space-32);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-8) var(--space-16);
  border-radius: 999px;
  background: rgba(79, 163, 209, 0.12);
  color: var(--color-sky-700);
  font-weight: var(--font-weight-medium);
  font-size: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  padding: 14px 24px;
  border-radius: var(--button-radius);
  border: 0;
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button-primary {
  background: var(--gradient-hero);
  color: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.button-primary:hover {
  transform: translateY(-2px);
}

.button-secondary {
  background: var(--color-white);
  color: var(--color-text-900);
  border: var(--border-soft);
}

.card {
  background: var(--color-white);
  border-radius: var(--card-radius);
  border: var(--border-soft);
  padding: var(--space-24);
  box-shadow: var(--shadow-soft);
}

.grid {
  display: grid;
  gap: var(--space-24);
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.hero {
  background: var(--gradient-hero);
  color: var(--color-white);
  border-radius: 28px;
  padding: clamp(32px, 8vw, 72px);
  box-shadow: var(--shadow-soft);
}

.hero p {
  color: rgba(255, 255, 255, 0.88);
}

.muted {
  color: var(--color-text-600);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(31, 41, 55, 0.06);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-16) 0;
  gap: var(--space-16);
}

.logo {
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.2px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-16);
  color: var(--color-text-600);
  font-size: 15px;
}

.nav-links a:hover {
  color: var(--color-text-900);
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-32);
  align-items: center;
}

.hero-title {
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.15;
  margin: 0 0 var(--space-16);
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-16);
  align-items: center;
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
  margin-bottom: var(--space-32);
}

.feature-card h3 {
  margin: 0 0 var(--space-8);
  font-size: 18px;
}

.feature-card p {
  margin: 0;
  color: var(--color-text-600);
}

.reviews {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(260px, 1fr);
  gap: var(--space-24);
  overflow-x: auto;
  padding-bottom: var(--space-16);
}

.reviews::-webkit-scrollbar {
  height: 6px;
}

.reviews::-webkit-scrollbar-thumb {
  background: rgba(31, 41, 55, 0.2);
  border-radius: 999px;
}

.review-card {
  min-height: 220px;
}

.team-card h3 {
  margin: 0 0 var(--space-8);
}

.team-card p {
  margin: 0 0 var(--space-12);
  color: var(--color-text-600);
}

.news-grid {
  display: grid;
  gap: var(--space-24);
}

.news-card time {
  font-size: 13px;
  color: var(--color-text-500);
}

.materials-grid {
  display: grid;
  gap: var(--space-24);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
}

.tag {
  padding: 6px 12px;
  border-radius: 999px;
  border: var(--border-soft);
  font-size: 13px;
  color: var(--color-text-600);
}

.site-footer {
  background: var(--color-white);
  border-top: var(--border-soft);
  padding: var(--space-48) 0;
}

.footer-grid {
  display: grid;
  gap: var(--space-24);
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.footer-title {
  font-weight: var(--font-weight-semibold);
  margin: 0 0 var(--space-12);
}

.footer-links {
  display: grid;
  gap: var(--space-8);
  color: var(--color-text-600);
}

.footer-note {
  margin-top: var(--space-32);
  color: var(--color-text-500);
  font-size: 14px;
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  .hero {
    border-radius: 20px;
  }

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

  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
  }
}

@media (max-width: 560px) {
  .container {
    padding: 0 var(--space-16);
  }

  .cta-group {
    width: 100%;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  .hero {
    padding: 32px;
  }
}