* {
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body {
  margin: 0;
  padding: 0;
  background: #f1f5f9;
  color: #111;
  transition: background 0.3s, color 0.3s;
}

.container {
  width: 90%;
  max-width: 500px;
  margin: 40px auto;
  background: #ffffff;
  padding: 20px;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  transition: background 0.3s, color 0.3s;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.preview {
  width: 100%;
  height: 120px;
  border-radius: 12px;
  margin: 15px 0;
  border: 2px solid #ddd;
}

.sliders label {
  display: flex;
  justify-content: space-between;
  margin: 8px 0;
}

.codes p {
  margin: 8px 0;
  font-size: 15px;
}

.copyBtn {
  margin-left: 10px;
  padding: 4px 8px;
  border: none;
  background: #0ea5e9;
  color: white;
  border-radius: 5px;
  cursor: pointer;
}

.copyBtn:hover {
  background: #0284c7;
}

input[type="text"] {
  width: 100%;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 8px;
  margin: 10px 0;
}

.actions {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.actions button {
  flex: 1;
  min-width: 30%;
  background: #6366f1;
  color: white;
  border: none;
  border-radius: 8px;
  padding: 8px;
  cursor: pointer;
  transition: 0.2s;
}

.actions button:hover {
  background: #4f46e5;
}

#shades, #palette {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.shadeBox, .colorBox {
  width: 50px;
  height: 50px;
  border-radius: 8px;
  cursor: pointer;
  border: 2px solid #ddd;
  transition: transform 0.2s;
}

.shadeBox:hover, .colorBox:hover {
  transform: scale(1.05);
}

/* 🌙 DARK THEME */
body.dark {
  background: #0f172a;
  color: #f9fafb;
}

body.dark .container {
  background: #1e293b;
}

body.dark input, body.dark button {
  background: #334155;
  color: #f9fafb;
  border-color: #475569;
}

body.dark .copyBtn {
  background: #2563eb;
}

body.dark .actions button {
  background: #3b82f6;
}