:root {
  --bg: #f3f7ff;
  --surface: #ffffff;
  --text: #172b4d;
  --muted: #5e6c84;
  --primary: #0f9d58;
  --primary-dark: #0b7a45;
  --border: #e4ebf5;
  --shadow: 0 12px 28px rgba(23, 43, 77, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, #e9f0ff 0%, var(--bg) 60%);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 16px 32px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand h1 {
  margin: 0;
  font-size: 1.25rem;
}

.brand p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.logo {
  width: 42px;
  aspect-ratio: 1;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #35c759, #0f9d58);
  color: white;
  font-weight: 700;
}

.search-wrap input {
  width: min(360px, 62vw);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 12px 18px;
  font-size: 0.95rem;
  outline: none;
}

.search-wrap input:focus {
  border-color: #9fb7e9;
  box-shadow: 0 0 0 3px rgba(15, 157, 88, 0.15);
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 24px 60px;
}

.hero {
  background: linear-gradient(120deg, #103f95 0%, #3568c8 35%, #45b649 100%);
  color: white;
  border-radius: 24px;
  padding: 32px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  box-shadow: var(--shadow);
}

.hero h2 {
  margin: 10px 0;
  font-size: clamp(1.35rem, 2.6vw, 2rem);
}

.hero p {
  margin: 0;
  opacity: 0.9;
}

.chip {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  background: rgba(255, 255, 255, 0.2);
}

.install-btn {
  border: none;
  border-radius: 12px;
  background: white;
  color: #16489e;
  font-weight: 700;
  padding: 12px 18px;
  cursor: pointer;
}

.install-btn.secondary {
  width: 100%;
  margin-top: 10px;
  color: white;
  background: var(--primary);
}

.install-btn.secondary:hover {
  background: var(--primary-dark);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0;
}

.filter-btn {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  padding: 9px 14px;
  cursor: pointer;
  font-weight: 600;
}

.filter-btn.active {
  border-color: transparent;
  background: var(--primary);
  color: white;
}

h3 {
  margin-top: 10px;
}

.app-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
}

.app-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow);
}

.app-header {
  display: flex;
  gap: 12px;
  align-items: center;
}

.app-icon {
  width: 52px;
  aspect-ratio: 1;
  border-radius: 14px;
  background: linear-gradient(140deg, #7a9fff, #4ad9d9);
}

.app-name {
  margin: 0;
  font-size: 1.05rem;
}

.app-category {
  margin: 2px 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}

.app-description {
  color: #44546a;
  font-size: 0.9rem;
  min-height: 58px;
}

.app-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #42526e;
}

@media (max-width: 700px) {
  .topbar,
  .hero {
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar {
    padding: 16px;
  }

  main {
    padding-inline: 16px;
  }
}

.empty-state {
  grid-column: 1 / -1;
  background: white;
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 20px;
  color: var(--muted);
}