:root {
  /* Светлая тема */
  --background: #fafaf9;
  --foreground: #292524;
  --card-background: #ffffff;
  --border: #e7e5e4;
  --muted: #78716c;
  --accent: #ea580c;
  --accent-hover: #dc2626;
  --badge: #fed7aa;
  --badge-foreground: #ea580c;
  --ring: #fed7aa;
}

.dark {
  /* Темная теплая палитра */
  --background: #1c1917;
  --foreground: #f5f5f4;
  --card-background: #292524;
  --border: #44403c;
  --muted: #a8a29e;
  --accent: #ea580c;
  --accent-hover: #f97316;
  --badge: #431407;
  --badge-foreground: #fed7aa;
  --ring: #ea580c;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--background);
  color: var(--foreground);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 1.5rem;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.theme-switch {
  position: absolute;
  top: 1rem;
  right: 1rem;
}

.theme-switch button {
  background: var(--card-background);
  border: 1px solid var(--border);
  color: var(--foreground);
  width: 36px;
  height: 36px;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.theme-switch button:hover {
  border-color: var(--accent);
}

.theme-switch button:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--background), 0 0 0 4px var(--accent);
}

#moon-icon {
  display: none;
}

.container {
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
}

.card {
  background-color: var(--card-background);
  border-radius: 0.75rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 2rem;
  border: 1px solid var(--border);
  transition: border-color 0.3s ease, background-color 0.3s ease;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  /* Добавляем градиент на заголовок */
  background: linear-gradient(135deg, var(--foreground) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.badge {
  background: linear-gradient(
    135deg,
    var(--accent) 0%,
    var(--accent-hover) 100%
  );
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  letter-spacing: 0.025em;
}

.description {
  color: var(--muted);
  margin-bottom: 1.5rem;
  font-size: 0.925rem;
}

.search-form {
  margin-bottom: 1.5rem;
}

.input-container {
  position: relative;
  margin-bottom: 1rem;
}

.input-container svg {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
}

#search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  font-size: 0.925rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background-color: var(--card-background);
  color: var(--foreground);
  transition: border-color 0.15s ease;
}

#search-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--ring);
}

#search-input::placeholder {
  color: var(--muted);
}

.checkbox-container {
  margin-bottom: 1rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--foreground);
}

.checkbox-input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.checkbox-custom {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-radius: 0.25rem;
  position: relative;
  transition: all 0.15s ease;
  background-color: var(--card-background);
}

.checkbox-input:checked + .checkbox-custom {
  background: linear-gradient(
    135deg,
    var(--accent) 0%,
    var(--accent-hover) 100%
  );
  border-color: var(--accent);
}

.checkbox-input:checked + .checkbox-custom::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 2px;
  width: 4px;
  height: 8px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox-custom:hover {
  border-color: var(--accent);
}

.checkbox-input:focus + .checkbox-custom {
  box-shadow: 0 0 0 2px var(--background), 0 0 0 4px var(--accent);
}

.search-button {
  width: 100%;
  padding: 0.75rem 1.5rem;
  font-size: 0.925rem;
  font-weight: 500;
  background: linear-gradient(
    135deg,
    var(--accent) 0%,
    var(--accent-hover) 100%
  );
  color: white;
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background-color 0.15s ease, transform 0.1s ease;
}

.search-button:hover {
  background-color: var(--accent-hover);
}

.search-button:active {
  transform: translateY(1px);
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.feature-icon {
  color: var(--accent);
}

footer {
  margin-top: 2rem;
  font-size: 0.75rem;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 480px) {
  .card {
    padding: 1.5rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  .features {
    grid-template-columns: 1fr;
  }
}