@import url('https://fonts.googleapis.com/css2?family=Merriweather:wght@400;700&display=swap');

* {
  font-family: 'Merriweather', serif;
  box-sizing: border-box;
}

:root {
  --bg-color: #f5f7fa;
  --text-color: #1e1e2f;
  --card-bg: rgba(255, 255, 255, 0.96);
  --card-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  --badge-bg: #845ec2;
  --os-badge-bg: #00c6ff;
  --hover-color: #e4e9f0;
  --link-color: #845ec2;
  --footer-color: #555f68;
}

body.dark {
  --bg-color: linear-gradient(to bottom, #0f2027, #203a43, #2c5364);
  --text-color: #f0f0f0;
  --card-bg: rgba(255, 255, 255, 0.06);
  --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  --hover-color: #1f1f1f;
  --link-color: #6c5ce7;
  --footer-color: #a8a8a8;
}

body {
  background: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 0;
  transition: background-color 0.3s, color 0.3s;
  line-height: 1.6;
  font-family: "Inter", "Segoe UI", sans-serif;
}

header {
  display: grid;
  grid-template-rows: auto auto;
  gap: 20px;
  padding: 20px;
  background: var(--card-bg);
  box-shadow: var(--card-shadow);
  border-radius: 20px;
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
}

.header-title {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--card-bg);
  border-radius: 16px;
  box-shadow: var(--card-shadow);
  padding: 16px;
  text-align: center;
}

.header-title h1 {
  margin: 0;
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-color);
}

#stats {
  font-size: 0.9rem;
  opacity: 0.7;
  word-wrap: anywhere;
}

.header-content {
  display: grid;
  grid-template-columns: 2fr 6fr;
  grid-template-rows: auto auto;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: var(--card-bg);
  border-radius: 16px;
  box-shadow: var(--card-shadow);
}

.return-home {
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  background: var(--card-bg);
  border-radius: 12px;
  box-shadow: var(--card-shadow);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.3s;
}

.return-home:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  background: var(--hover-color);
}

.return-home img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.return-home label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-color);
  cursor: pointer;
}

.top-controls {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

#searchInput {
  padding: 10px 16px;
  width: 280px;
  font-size: 15px;
  border: 1px solid #ccc;
  border-radius: 10px;
  outline: none;
  background-color: #fff;
  transition: border-color 0.3s;
}

#searchInput:focus {
  border-color: var(--link-color);
}

.top-controls button {
  padding: 10px 18px;
  font-size: 15px;
  background-color: var(--badge-bg);
  color: #fff;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.3s;
}

.top-controls button:hover {
  background-color: #155cc2;
}

main {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  padding: 40px 30px;
}

.program-card {
  background-color: var(--card-bg);
  border-radius: 16px;
  box-shadow: var(--card-shadow);
  padding: 24px;
  transition: transform 0.3s ease, background-color 0.3s ease;
  animation: fadeInUp 0.4s ease;
  backdrop-filter: blur(8px);
}

.program-card:hover {
  transform: translateY(-8px);
  background-color: var(--hover-color);
}

.program-card h3 {
  margin-top: 0;
  font-size: 1.25rem;
  color: var(--text-color);
}

.program-card p {
  margin: 6px 0;
  font-size: 14.5px;
}

.badge {
  display: inline-block;
  background-color: var(--badge-bg);
  color: white;
  padding: 4px 10px;
  font-size: 12px;
  border-radius: 100px;
  margin-top: 4px;
}

.badge.os {
  background-color: var(--os-badge-bg);
}

.program-image {
  width: 100%;
  height: auto;
  border-radius: 12px;
  margin: 16px 0;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}

.links {
  margin-top: 14px;
}

.links a {
  display: inline-block;
  font-size: 13px;
  color: var(--link-color);
  margin: 4px 0;
  text-decoration: none;
  transition: opacity 0.3s;
}

.links a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

#scrollTopBtn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background-color: var(--badge-bg);
  color: #fff;
  font-size: 20px;
  border: none;
  cursor: pointer;
  display: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  transition: background 0.3s;
}

#scrollTopBtn:hover {
  background-color: #155cc2;
}

footer {
  text-align: center;
  margin-top: 60px;
  font-size: 0.95rem;
  color: var(--footer-color);
  padding-bottom: 20px;
}

.control-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  background: var(--card-bg);
  padding: 0.6rem 0.8rem;
  border-radius: 0.5rem;
  box-shadow: var(--card-shadow);
  transition: background 0.3s, box-shadow 0.3s;
}

.control-group input,
.control-group select {
  border: 1px solid #ccc;
  border-radius: 0.4rem;
  padding: 0.5rem 0.8rem;
  font-size: 0.9rem;
  outline: none;
  background: var(--bg-color);
  color: var(--text-color);
  transition: border-color 0.3s, background 0.3s, color 0.3s;
}

.control-group select option {
  background-color: var(--card-bg);
  color: var(--link-color);
  padding: 0.5rem 0.8rem;
  font-size: 0.95rem;
}

.control-group input:focus,
.control-group select:focus {
  border-color: var(--link-color);
}

.control-group button {
  padding: 0.5rem 0.8rem;
  font-size: 0.9rem;
  border: none;
  border-radius: 0.4rem;
  cursor: pointer;
  background: var(--badge-bg);
  color: #fff;
  transition: background 0.3s;
}

.control-group button:hover {
  background: var(--link-color);
}

#osFilter button.active {
  background: var(--link-color);
  color: #fff;
}

.compact-view {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  padding: 30px;
}

.compact-view .program-card {
  padding: 12px;
  border-radius: 12px;
  text-align: center;
}

.compact-view .program-image {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 50%;
  margin: 10px auto;
}

.compact-view .program-card h3 {
  font-size: 1rem;
  margin: 6px 0;
}

.compact-view .program-card p {
  font-size: 13px;
  margin: 4px 0;
}

.compact-view .program-card p strong:not(:first-child),
.compact-view .program-card .links {
  display: none;
}

@media (max-width: 768px) {
  header {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 5px;
  }

  .header-title {
    display: none;
  }

  .header-content {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    text-align: center;
    gap: 8px;
    padding: 12px;
  }

  .return-home {
    justify-content: center;
    padding: 7px;
  }

  .return-home img {
    width: 24px;
    height: 24px;
  }

  .header-content h1 {
    font-size: 1rem;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}