/* === Global Styles === */
:root {
  --primary-color: #4361ee;
  --primary-hover: #3a56d4;
  --text-color: #333;
  --bg-color: #f8f9fa;
  --container-bg: #ffffff;
  --input-border: #ddd;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --download-btn: #2ecc71;
  --download-hover: #27ae60;
  --share-btn: #9b59b6;
  --share-hover: #8e44ad;
  --footer-bg: #f1f1f1;
  --github-bg: #f6f8fa;
}

/* Dark mode variables */
body.dark-mode {
  --primary-color: #4cc9f0;
  --primary-hover: #3db8e5;
  --text-color: #f1f1f1;
  --bg-color: #121212;
  --container-bg: #1e1e1e;
  --input-border: #444;
  --shadow-color: rgba(255, 255, 255, 0.05);
  --download-btn: #2ecc71;
  --download-hover: #27ae60;
  --share-btn: #9b59b6;
  --share-hover: #8e44ad; 
  --footer-bg: #1a1a1a;
  --github-bg: #252525;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  background-color: var(--bg-color);
  transition: background-color 0.3s, color 0.3s;
  color: var(--text-color);
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
}

.container {
  max-width: 500px;
  margin: 30px auto;
  text-align: center;
  padding: 30px;
  background-color: var(--container-bg);
  box-shadow: 0 10px 25px var(--shadow-color);
  border-radius: 15px;
  transition: background-color 0.3s, box-shadow 0.3s;
  flex: 1;
}

h1 {
  margin-top: 0;
  color: var(--primary-color);
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

#subtitle {
  color: var(--text-color);
  opacity: 0.8;
  margin-bottom: 25px;
}

.input-section {
  margin: 20px 0;
}

.input-wrapper {
  position: relative;
  margin-bottom: 20px;
}

.input-icon {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary-color);
  font-size: 18px;
}

input[type="text"] {
  width: 100%;
  padding: 12px 12px 12px 45px;
  border: 2px solid var(--input-border);
  border-radius: 8px;
  box-sizing: border-box;
  transition: border-color 0.3s, box-shadow 0.3s;
  font-size: 16px;
  background-color: var(--container-bg);
  color: var(--text-color);
}

input[type="text"]:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

body.dark-mode input[type="text"]:focus {
  box-shadow: 0 0 0 3px rgba(76, 201, 240, 0.2);
}

.options-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 25px 0;
  background-color: rgba(0, 0, 0, 0.03);
  padding: 20px;
  border-radius: 8px;
}

body.dark-mode .options-section {
  background-color: rgba(255, 255, 255, 0.05);
}

.color-section, .size-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.color-section label, .size-section label {
  font-weight: 600;
  color: var(--text-color);
}

input[type="color"] {
  width: 60px;
  height: 40px;
  border: 2px solid var(--input-border);
  cursor: pointer;
  border-radius: 5px;
  background-color: var(--container-bg);
}

select {
  padding: 10px 15px;
  width: 200px;
  border: 2px solid var(--input-border);
  border-radius: 8px;
  background-color: var(--container-bg);
  color: var(--text-color);
  cursor: pointer;
  transition: border-color 0.3s, box-shadow 0.3s;
  font-size: 16px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23555' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: calc(100% - 15px) center;
  padding-right: 40px;
}

body.dark-mode select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23ccc' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
}

select:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

body.dark-mode select:focus {
  box-shadow: 0 0 0 3px rgba(76, 201, 240, 0.2);
}

.primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.2s;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.primary-btn:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
}

.primary-btn:active {
  transform: translateY(0);
}

/* QR code container styling */
#qrcode:not(:empty) {
  background-color: #ffffff !important; /* Force white background */
  display: inline-block;
  margin: 25px auto;
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  position: relative;
}

/* Hide the empty QR container */
#qrcode:empty {
  display: none;
}

.download-section {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-top: 20px;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.2s, opacity 0.3s;
}

.download-btn {
  background-color: var(--download-btn);
}

.download-btn:hover {
  background-color: var(--download-hover);
  transform: translateY(-2px);
}

.share-btn {
  background-color: var(--share-btn);
}

.share-btn:hover {
  background-color: var(--share-hover);
  transform: translateY(-2px);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* === Top Bar Styles === */
.top-bar {
  position: absolute;
  top: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  gap: 15px;
  z-index: 10;
}

.mode-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-color);
}

.switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 30px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0;
  right: 0; bottom: 0;
  background-color: #ccc;
  transition: 0.4s;
  border-radius: 30px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 22px; width: 22px;
  left: 4px; bottom: 4px;
  background-color: white;
  transition: 0.4s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--primary-color);
}

input:checked + .slider:before {
  transform: translateX(30px);
}

/* Language selector styling */
.language-selector {
  margin-right: 5px;
}

#languageSelect {
  padding: 8px 30px 8px 15px;
  border-radius: 8px;
  border: 2px solid var(--input-border);
  background-color: var(--container-bg);
  color: var(--text-color);
  cursor: pointer;
  font-size: 14px;
}

body.dark-mode #languageSelect {
  background-color: var(--container-bg);
  border-color: var(--input-border);
}

/* Footer styles */
.footer {
  background-color: var(--footer-bg);
  padding: 30px 20px;
  text-align: center;
  margin-top: 40px;
  transition: background-color 0.3s;
}

.github-section {
  max-width: 500px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.github-section h3 {
  margin-top: 0;
  color: var(--primary-color);
  font-size: 1.4rem;
}

.github-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-color);
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  padding: 12px 25px;
  background-color: var(--github-bg);
  border-radius: 10px;
  transition: transform 0.2s, box-shadow 0.3s;
}

.github-link:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px var(--shadow-color);
}

.github-logo {
  font-size: 26px;
  color: var(--primary-color);
}

.github-qr-wrapper {
  margin-top: 15px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.github-qr {
  background-color: #fff;
  padding: 15px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  transition: transform 0.2s;
}

.github-qr:hover {
  transform: scale(1.05);
}

.scan-text {
  margin-top: 10px;
  font-size: 14px;
  color: var(--text-color);
  opacity: 0.8;
}

.copyright {
  margin-top: 30px;
  font-size: 14px;
  color: var(--text-color);
  opacity: 0.7;
}

/* Responsive adjustments */
@media (max-width: 600px) {
  .container {
    margin: 20px 15px;
    padding: 20px;
  }
  
  .top-bar {
    top: 10px;
    right: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .language-selector {
    margin-bottom: 10px;
  }
  
  h1 {
    font-size: 1.8rem;
  }
  
  .color-section, .size-section {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  
  select {
    width: 100%;
  }
  
  .download-section {
    flex-direction: column;
    align-items: center;
  }
  
  .action-btn {
    width: 100%;
  }
}