:root {
  --primary-color: #d32f2f;
  --secondary-color: #f44336;
  --background-color: #fff5f5;
  --text-color: #333;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--background-color);
  color: var(--text-color);
}

header {
  background: var(--primary-color);
  padding: 20px;
  text-align: center;
  color: white;
}

header h1 {
  margin: 0;
  font-size: 2.2em;
  letter-spacing: 1px;
}

main {
  padding: 30px 20px;
  max-width: 900px;
  margin: 0 auto;
}

.input-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

input[type="text"] {
  width: 100%;
  max-width: 600px;
  padding: 12px 15px;
  font-size: 16px;
  border: 2px solid var(--primary-color);
  border-radius: 6px;
  outline: none;
}

button {
  padding: 12px 25px;
  font-size: 16px;
  background-color: var(--secondary-color);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: #b71c1c;
}

.thumbnails {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.thumb-container {
  background: white;
  border-radius: 10px;
  padding: 15px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease;
}

.thumb-container:hover {
  transform: translateY(-4px);
}

.thumb-container h4 {
  margin: 0 0 10px 0;
  font-size: 16px;
  color: var(--primary-color);
}

.thumb-container img {
  width: 100%;
  border-radius: 6px;
}

.download-btn {
  margin-top: 10px;
  display: inline-block;
  background-color: var(--primary-color);
  color: white;
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 5px;
  font-size: 14px;
  transition: background 0.3s ease;
}

.download-btn:hover {
  background-color: #a00000;
}

footer {
  margin-top: 60px;
  text-align: center;
  font-size: 14px;
  color: #888;
}