* {
  box-sizing: border-box;
}

:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-alt: #eef4ff;
  --text: #1f2937;
  --heading: #0f172a;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --border: #dbe4f0;
  --muted: #5b6472;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --radius: 18px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

a {
  color: var(--primary-dark);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.site-header {
  background: linear-gradient(135deg, #1d4ed8 0%, #3b82f6 100%);
  color: #ffffff;
  padding: 28px 0 56px;
}

.topbar {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.eyebrow,
.section-label {
  margin: 0 0 10px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.brand-block h1 {
  margin: 0;
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  line-height: 1.1;
}

.subtitle {
  max-width: 760px;
  margin: 14px 0 0;
  font-size: 1.08rem;
  color: rgba(255, 255, 255, 0.92);
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.main-nav a {
  color: #ffffff;
  font-weight: 700;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
}

.main-nav a:hover {
  text-decoration: none;
  background: rgba(255, 255, 255, 0.2);
}

.hero-grid {
  margin-top: 34px;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 24px;
  align-items: stretch;
}

.hero-copy,
.hero-card {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  padding: 28px;
  backdrop-filter: blur(6px);
}

.hero-copy h2 {
  margin-top: 0;
  margin-bottom: 14px;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.2;
}

.hero-copy p,
.hero-card,
.hero-card li {
  color: rgba(255, 255, 255, 0.96);
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 22px;
}

.button {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 12px;
  font-weight: 700;
  transition: 0.2s ease;
}

.button:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.button.primary {
  background: #ffffff;
  color: var(--primary-dark);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.14);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-card h3 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.feature-list {
  margin: 0;
  padding-left: 20px;
}

.section {
  padding: 68px 0;
}

.alt-bg {
  background: #f1f6ff;
}

.section-heading {
  max-width: 750px;
  margin-bottom: 28px;
}

.section-heading h2,
.content-panel h2,
.cta-box h2,
.site-footer h3,
.site-footer h4 {
  color: var(--heading);
}

.section-heading h2 {
  margin: 0 0 10px;
  font-size: 2rem;
}

.section-heading p {
  margin: 0;
  color: var(--muted);
}

.card-grid,
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.tool-card,
.category-card,
.content-panel,
.cta-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.tool-card {
  padding: 24px;
}

.tool-card h3 {
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.tool-card p {
  margin: 0;
  color: var(--muted);
}

.category-card {
  display: block;
  padding: 24px;
  color: inherit;
}

.category-card:hover {
  text-decoration: none;
  transform: translateY(-2px);
}

.category-card h3 {
  margin-top: 0;
  margin-bottom: 10px;
}

.category-card p {
  margin: 0;
  color: var(--muted);
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.content-panel {
  padding: 28px;
}

.content-panel h2 {
  margin-top: 0;
  margin-bottom: 12px;
}

.content-panel p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.cta-section {
  padding-top: 0;
}

.cta-box {
  padding: 30px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.cta-box h2 {
  margin-top: 0;
  margin-bottom: 10px;
}

.cta-box p {
  margin: 0;
  color: var(--muted);
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.cta-actions .button.primary {
  background: var(--primary);
  color: #ffffff;
}

.cta-actions .button.secondary {
  background: #e8f0ff;
  color: var(--primary-dark);
  border: 1px solid #cfe0ff;
}

.site-footer {
  background: #eaf1fb;
  padding: 46px 0 22px;
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

.footer-grid p {
  color: var(--muted);
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-bottom {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid #d5deea;
}

.footer-bottom p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 900px) {
  .hero-grid,
  .card-grid,
  .category-grid,
  .two-column,
  .footer-grid,
  .cta-box {
    grid-template-columns: 1fr;
  }

  .cta-box {
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 22px 0 42px;
  }

  .hero-copy,
  .hero-card,
  .tool-card,
  .category-card,
  .content-panel,
  .cta-box {
    padding: 20px;
  }

  .section {
    padding: 52px 0;
  }

  .main-nav a {
    width: 100%;
    text-align: center;
  }

  .hero-buttons,
  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    text-align: center;
  }
}