:root {
  --primary: #26d07b;
  --primary-dark: #1aa86b;
  --ink: #0f172a;
  --subtle: #5c6b86;
  --bg: #f6f8ff;
  --card: rgba(255, 255, 255, 0.9);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(38, 208, 123, 0.18), transparent 40%),
    radial-gradient(circle at 80% -10%, rgba(26, 168, 107, 0.22), transparent 40%);
  z-index: -2;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 4vw;
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(15, 17, 21, 0.08);
  box-shadow: 0 15px 35px rgba(15, 17, 21, 0.05);
  backdrop-filter: blur(12px);
}

.logo {
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
}

nav {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

nav a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
  letter-spacing: 0.05em;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

nav a:hover {
  color: var(--primary);
}

.btn {
  border-radius: 999px;
  padding: 0.65rem 1.8rem;
  font-weight: 600;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: none;
  box-shadow: 0 20px 30px rgba(38, 208, 123, 0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
}

.btn-secondary {
  border: 1px solid rgba(15, 17, 21, 0.15);
  background: rgba(255, 255, 255, 0.8);
  color: var(--ink);
}

.btn-outline {
  border: 1px solid rgba(15, 17, 21, 0.2);
  background: transparent;
  color: var(--ink);
}

main {
  padding-bottom: 3rem;
}

.hero {
  padding: 4rem 4vw;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
  margin-top: 1rem;
  background: #fff;
  margin: 3rem auto 2rem;
  max-width: 1200px;
  border-radius: 28px;
  box-shadow: 0 25px 50px rgba(15, 17, 21, 0.08);
}

.hero h1 {
  font-size: clamp(2.8rem, 4vw, 3.8rem);
  margin: 0.25rem 0 1rem;
}

.hero .lead {
  max-width: 52ch;
  color: var(--subtle);
}

.eyebrow {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.4em;
  color: var(--subtle);
  margin: 0;
}

.hero-actions {
  margin-top: 1.8rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-card {
  border-radius: 22px;
  padding: 2rem;
  background: var(--card);
  border: 1px solid rgba(15, 17, 21, 0.08);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8), 0 20px 40px rgba(15, 17, 21, 0.1);
}

.hero-card-note {
  color: var(--subtle);
  font-size: 0.95rem;
}

.section-heading {
  max-width: 720px;
}

.section-heading h2 {
  font-size: clamp(2rem, 3vw, 2.6rem);
  margin-bottom: 0.5rem;
}

.focus,
.technology,
.cases,
.contact-section {
  background: var(--card);
  margin: 2rem auto;
  max-width: 1200px;
  padding: 3rem;
  border-radius: 32px;
  box-shadow: 0 20px 40px rgba(15, 17, 21, 0.08);
  border: 1px solid rgba(15, 17, 21, 0.05);
}

.grid-3 {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.grid-3 article,
.tech-card,
.case-grid article {
  padding: 1.5rem;
  border-radius: 18px;
  background: #fff;
  border: 1px solid rgba(15, 17, 21, 0.05);
  box-shadow: 0 12px 30px rgba(15, 17, 21, 0.08);
  position: relative;
  overflow: hidden;
}

.grid-3 article::before,
.tech-card::before,
.case-grid article::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(38, 208, 123, 0.2), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.grid-3 article:hover::before,
.tech-card:hover::before,
.case-grid article:hover::before {
  opacity: 1;
}

.icon {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(38, 208, 123, 0.1);
  color: var(--primary-dark);
  font-size: 1.2rem;
  margin-bottom: 0.8rem;
}

.tech-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.25rem;
}

.case-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.3rem;
}

.cta {
  margin: 2rem auto;
  padding: 2.7rem;
  border-radius: 1.5rem;
  background: linear-gradient(135deg, rgba(38, 208, 123, 0.95), rgba(26, 168, 107, 0.95));
  color: #fff;
  max-width: 1200px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  box-shadow: 0 25px 50px rgba(15, 17, 21, 0.2);
}

.cta h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.3rem);
}

.cta p {
  margin: 0.4rem 0 0;
  max-width: 50ch;
}

.contact-form {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 1.5rem;
}

.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-weight: 500;
}

.contact-form input,
.contact-form textarea {
  padding: 0.9rem 1rem;
  border-radius: 0.9rem;
  border: 1px solid rgba(15, 17, 21, 0.12);
  background: rgba(246, 248, 255, 0.9);
  font-family: inherit;
  font-size: 1rem;
}

.contact-form textarea {
  min-height: 120px;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(38, 208, 123, 0.25);
}

.contact-form button {
  grid-column: 1 / -1;
  width: fit-content;
  border: none;
  background: #0f172a;
  color: #fff;
  padding: 0.85rem 1.8rem;
  box-shadow: 0 20px 30px rgba(15, 17, 21, 0.25);
}

.site-footer {
  padding: 2rem 3vw;
  text-align: center;
  font-size: 0.95rem;
  color: var(--subtle);
  margin-top: 1rem;
}

@media (max-width: 768px) {
  .site-header {
    flex-direction: column;
    gap: 0.8rem;
  }

  .hero,
  .focus,
  .technology,
  .cases,
  .contact-section,
  .cta {
    padding: 2rem;
  }

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

  .contact-form {
    grid-template-columns: 1fr;
  }
}