html {
  scroll-behavior: smooth;

  /* Define color variables for light theme */
  --quiz-bg-color: #ffffff;
  --quiz-text-color: #222222;
  --quiz-card-bg: #ffffff;
  --quiz-primary: #004687;
  --quiz-primary-hover: #0056b3;
  --quiz-border-color: #ccc;
  --quiz-correct-bg: #c8f7c5;
  --quiz-correct-border: green;
  --quiz-wrong-bg: #ffd6d6;
  --quiz-wrong-border: red;
  --quiz-circle-bg: #eaf4ff;
  --quiz-floating-bg: #222;
  --quiz-link-color: #007bff;
  --quiz-link-hover: #0056b3;
  --quiz-shadow: rgba(0,0,0,0.1);
}

/* Dark mode overrides */
html[data-theme="dark"] {
  --quiz-body-bg: #1b1b1d;
  --quiz-bg-color: #121212;
  --quiz-text-color: #e0e0e0;
  --quiz-card-bg: #1e1e1e;
  --quiz-option-bg: #2d2d2d;
  --quiz-primary: #073763;
  --quiz-primary-hover: #1f78cf;
  --quiz-border-color: #555;
  --quiz-correct-bg: #265122;
  --quiz-correct-border: #63aa59;
  --quiz-wrong-bg: #5c1a1a;
  --quiz-wrong-border: #aa4444;
  --quiz-circle-bg: #16344c;
  --quiz-floating-bg: #333;
  --quiz-link-color: #3fa2ff;
  --quiz-link-hover: #1f78cf;
  --quiz-shadow: rgba(0,0,0,0.7);
}

/* ===================
 Base styles
=================== */
body {
    background-color: var(--main-bg);
}

#info {
color: var(--text-color);
}

h1 {
  text-align: center;
  text-decoration: underline;
  color: var(--quiz-link-color);
}

h2 {
  margin-top: 30px;
  color: var(--quiz-link-color);
}

.note {
  margin-top: 40px;
  font-weight: bold;
  text-align: center;
}


#instructions {
  color: var(--text-color)
}

/* ===================
 User Info
=================== */
#user-info {
  text-align: center;
  margin-bottom: 20px;
}

#username {
  padding: 10px;
  width: 220px;
  border-radius: 6px;
  border: 1px solid var(--bs-success);
  font-size: 16px;
}

#start-btn,
#submit-btn {
  background-color: var(--quiz-primary);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
  box-shadow: 0 3px 6px var(--quiz-shadow);
  transition: background 0.3s ease;
  margin: 10px auto;
  display: block;
}

#start-btn:hover,
#submit-btn:hover {
  background: var(--quiz-primary-hover);
}

#submit-btn:disabled {
  background: #999;
  cursor: not-allowed;
}

/* ===================
 Floating status
=================== */
#floating-score,
#timer {
  position: fixed;
  padding: 6px 12px;
  border-radius: 6px;
  font-weight: bold;
  box-shadow: 0 0 10px var(--quiz-shadow);
  z-index: 1000;
}

#floating-score {
  top: 10px;
  right: 10px;
  background: var(--quiz-floating-bg);
  color: white;
}

#timer {
  top: 10px;
  left: 10px;
  background: #8c0600;
  color: white;
}

/* ===================
 Question & options
=================== */
.question {
  padding: 15px;
  margin-bottom: 10px;
  border-radius: 8px;
  box-shadow: 0 2px 6px var(--quiz-shadow);
  color: var(text-color);
}

.options button {
  display: block;
  width: 100%;
  padding: 10px;
  border-radius: 4px;
  border: 1px solid var(--quiz-border-color);
  cursor: pointer;
  margin: 8px 0;
  background: var(--quiz-option-bg);
  color: var(--text-color);
}

.correct {
  background: var(--quiz-correct-bg) !important;
  border-color: var(--quiz-correct-border) !important;
  color: #222 !important;
}

.wrong {
  background: var(--quiz-wrong-bg) !important;
  border-color: var(--quiz-wrong-border) !important;
  color: #222 !important;
}

/* ===================
 Result Card
=================== */
#result-card {
  display: none;
  text-align: center;
  margin-top: 30px;
}

#card {
  border-radius: 12px;
  box-shadow: 0 4px 10px var(--quiz-shadow);
  padding: 20px;
  max-width: 320px;
  margin: 0 auto;
  color: var(--text-color);
}

#circle-score {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 6px solid var(--quiz-primary);
  margin: 20px auto;
  font-size: 24px;
  line-height: 110px;
  color: var(--quiz-text-color);
  font-weight: bold;
  background: var(--quiz-circle-bg);
}

#site-link {
  display: block;
  margin: 15px 0;
  font-size: 14px;
  color: var(--quiz-link-color);
  text-decoration: none;
}

#site-link:hover {
  text-decoration: underline;
  color: var(--quiz-link-hover);
}

/* ===================
 Share Section
=================== */
#share-section button {
  margin: 5px;
  padding: 10px 16px;
  border: none;
  background: var(--quiz-primary);
  color: white;
  border-radius: 6px;
  cursor: pointer;
  transition: 0.3s;
}

#share-section button:hover {
  background: var(--quiz-primary-hover);
}

#challenge-text {
  font-size: 12px;
  color: var(--text-color);
  margin-top: 20px;
}

.logo-icon {
  height: 48px;
  vertical-align: middle;
  margin-right: 8px;
  }
.title-row {
  display: flex;
  align-items: center;
  justify-content: center; /* center horizontally inside parent */
  gap: 8px;
}