:root {
  --color-primary: #67DCAE;
  --color-primary-dark: #2aa97a;
  --color-dark: #1a1a1a;
  --color-text: #333333;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7f6;
  --color-border: rgba(26, 26, 26, 0.08);
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(14px);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-dark);
}

.main-nav a {
  margin-left: 1.5rem;
  font-weight: 500;
}

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

/* Hero */
.hero {
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(rgba(8, 27, 29, 0.55), rgba(8, 27, 29, 0.4)),
    url("../img/hero-background.svg"),
    radial-gradient(circle at top left, rgba(103, 220, 174, 0.35), transparent 28%),
    radial-gradient(circle at 85% 20%, rgba(42, 169, 122, 0.18), transparent 24%),
    linear-gradient(135deg, #081b1d 0%, #10262b 35%, #f5f7f6 100%);
  background-position: center;
  background-size: cover;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 85%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 3rem;
  align-items: center;
}

.hero-copy {
  color: #f3fbf7;
  position: relative;
  z-index: 1;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  color: #c7f7e5;
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
}

.hero-actions {
  display: flex;
  justify-content: flex-start;
}

.hero h1 {
  font-size: 2.75rem;
  margin: 0 0 1rem;
  color: #ffffff;
}

.hero p {
  max-width: 600px;
  margin: 0 0 2rem;
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.86);
}

.hero-art {
  position: relative;
  min-height: 560px;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(4px);
  animation: float 9s ease-in-out infinite;
}

.orb-one {
  width: 220px;
  height: 220px;
  top: 0;
  right: 10%;
  background: radial-gradient(circle at 30% 30%, rgba(103, 220, 174, 0.95), rgba(103, 220, 174, 0.05) 70%);
  animation-delay: -1s;
}

.orb-two {
  width: 140px;
  height: 140px;
  bottom: 2rem;
  left: 1rem;
  background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.04) 70%);
  animation-delay: -3s;
}

.orb-three {
  width: 90px;
  height: 90px;
  top: 4rem;
  left: 3rem;
  background: radial-gradient(circle at 50% 50%, rgba(42, 169, 122, 0.8), rgba(42, 169, 122, 0.06) 72%);
  animation-delay: -5s;
}

.hero-ring {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  animation: drift 16s linear infinite;
}

.hero-ring-one {
  inset: 2rem 0.5rem 1rem 3rem;
  opacity: 0.22;
}

.hero-ring-two {
  inset: 5rem 3rem 3rem 1rem;
  opacity: 0.1;
  animation-direction: reverse;
}

.hero-illustration {
  position: absolute;
  right: 1rem;
  bottom: 0;
  width: min(100%, 440px);
  filter: drop-shadow(0 36px 60px rgba(0, 0, 0, 0.28));
  animation: float 12s ease-in-out infinite;
  animation-delay: -2s;
}

.btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #07241c;
  padding: 0.75rem 1.75rem;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 18px 35px rgba(42, 169, 122, 0.28);
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.btn:hover {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 20px 38px rgba(42, 169, 122, 0.32);
}

/* Sections */
.section {
  padding: 4rem 0;
}

.section.alt {
  background: var(--color-bg-alt);
}

.section h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--color-dark);
}

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

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 18px 32px rgba(16, 38, 43, 0.06);
}

.card h3 {
  margin-top: 0;
  color: var(--color-dark);
}

/* Footer */
.site-footer {
  padding: 2rem 0;
  text-align: center;
  border-top: 1px solid var(--color-border);
  color: #777;
  font-size: 0.9rem;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-12px);
  }
}

@keyframes drift {
  0% {
    transform: rotate(0deg) scale(1);
  }

  50% {
    transform: rotate(4deg) scale(1.02);
  }

  100% {
    transform: rotate(0deg) scale(1);
  }
}

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

  .hero-copy,
  .hero-actions {
    justify-content: center;
    text-align: center;
  }

  .hero p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-art {
    min-height: 480px;
  }

  .hero-illustration {
    right: 0;
    width: min(100%, 360px);
  }
}

@media (max-width: 600px) {
  .hero h1 {
    font-size: 2rem;
  }

  .header-inner {
    flex-direction: column;
    gap: 0.75rem;
  }

  .main-nav a {
    margin: 0 0.75rem;
  }

  .hero {
    padding: 4.5rem 0;
  }

  .hero-art {
    min-height: 380px;
  }

  .floating-card {
    padding: 0.85rem 1rem;
    font-size: 0.95rem;
  }

  .hero-ring {
    inset: 2.5rem 0.5rem 2rem 0.5rem;
  }

  .hero-illustration {
    width: min(100%, 300px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .orb,
  .hero-ring,
  .hero-illustration {
    animation: none;
  }
}