:root {
  --primary: #5a8f6b;
  --primary-dark: #2f5c3d;
  --secondary: #c1e1c9;
  --accent: #7ea78b;
  --surface: #ffffff;
  --surface-muted: #f2faf3;
  --background: #edf5ef;
  --border: #d3e8d4;
  --text-main: #1e2a21;
  --text-muted: #4a584c;
  --shadow: 0 18px 35px rgba(47, 92, 61, 0.15);
  --transition: all 0.25s ease;
}

* {
  box-sizing: border-box;
}

body {
  font-family:
    "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  margin: 0;
  background: radial-gradient(circle at top, #eaf5ed 0%, var(--background) 45%);
  color: var(--text-main);
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.hero {
  max-width: 640px;
  margin: 2.5rem auto 2rem;
  padding: 2rem;
  border-radius: 1.5rem;
  background: linear-gradient(135deg, #f2fbf4, #e0f0e4);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  text-align: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.eyebrow {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary-dark);
  font-weight: 600;
  margin: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--primary-dark);
  text-decoration: none;
  font-weight: 600;
}

.contact-link::after {
  content: "↗";
  font-size: 0.85rem;
}

.filter-panel {
  background: var(--surface);
  border-radius: 1.5rem;
  border: 1px solid var(--border);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  margin-bottom: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}

.filter-panel h2 {
  margin: 0;
  font-size: 1.6rem;
}

.filter-panel p {
  margin: 0.25rem 0 0;
  color: var(--text-muted);
}

.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chip {
  border-radius: 999px;
  padding: 0.6rem 1.25rem;
  border: 1px solid var(--border);
  background: var(--surface-muted);
  color: var(--text-main);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

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

.filter-button.active {
  background: var(--primary);
  border-color: var(--primary-dark);
  color: #fff;
  box-shadow: var(--shadow);
}

.app-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.75rem;
}

.app-card {
  background: var(--surface);
  border-radius: 1.5rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.app-card:hover {
  transform: translateY(-6px);
}

.app-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  filter: grayscale(100%);
  transition: var(--transition);
}

.app-card:hover .app-image {
  filter: grayscale(0%);
}

.app-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
}

.app-chip {
  align-self: flex-start;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background: var(--surface-muted);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
}

.app-content h2 {
  margin: 0;
  font-size: 1.5rem;
}

.app-content p {
  margin: 0;
  color: var(--text-muted);
  flex: 1;
}

.app-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-top: auto;
}

.app-actions .btn {
  flex: 1 1 auto;
}

.app-actions .btn.secondary {
  flex: 0 0 auto;
  margin-left: auto;
  white-space: nowrap;
}

.app-content button {
  align-self: flex-start;
  border: none;
  border-radius: 999px;
  padding: 0.7rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--primary);
  color: #fff;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

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

.app-card.hidden {
  display: none;
}

@media (max-width: 768px) {
  .hero {
    padding: 1.75rem;
  }

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

  .app-cards {
    grid-template-columns: 1fr;
  }
}