:root {
  --primary: #4361ee;
  --primary-hover: #3a56d4;
  --secondary: #2ec4b6;
  --danger: #ef476f;
  --success: #06d6a0;
  --warning: #ffd166;
  --dark: #1a1a2e;
  --darker: #16213e;
  --light: #e9ecef;
  --text: #f8f9fa;
  --text-dark: #212529;
  --border-radius: 8px;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
  --transition: all 0.2s ease;
}

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

body {
  font-family: 'Segoe UI', 'Roboto', sans-serif;
  background: linear-gradient(135deg, var(--darker) 0%, var(--dark) 100%);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  color: var(--text);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

h1, h2, h3, h4, h5, h6 {
  margin-bottom: 1rem;
  font-weight: 600;
  color: var(--text);
}

h2 {
  text-align: center;
  margin-bottom: 1.5rem;
  font-size: 1.8rem;
  position: relative;
  padding-bottom: 0.5rem;
}

h2:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--primary);
  border-radius: 3px;
}

.container {
  background-color: rgba(26, 26, 46, 0.8);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius);
  padding: 2rem;
  width: 100%;
  max-width: 600px;
  margin: 2rem auto;
  box-shadow: var(--box-shadow);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.container_log {
  background-color: rgba(26, 26, 46, 0.8);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius);
  padding: 2rem;
  width: 100%;
  max-width: 400px;
  margin: 2rem auto;
  box-shadow: var(--box-shadow);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.container_admin {
  background-color: rgba(26, 26, 46, 0.8);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius);
  padding: 2rem;
  width: 100%;
  max-width: 800px;
  margin: 2rem auto;
  box-shadow: var(--box-shadow);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Form elements */
input[type="text"], 
input[type="password"],
textarea,
select {
  width: 100%;
  padding: 0.75rem 1rem;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 1rem;
  transition: var(--transition);
}

input[type="text"]:focus, 
input[type="password"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(67, 97, 238, 0.3);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--light);
}

.active-button {
  background-color: var(--primary);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  display: inline-block;
  transition: var(--transition);
  text-decoration: none;
  text-align: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.active-button:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.logout-button {
  background-color: var(--danger);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  display: inline-block;
  transition: var(--transition);
  text-decoration: none;
  text-align: center;
}

.logout-button:hover {
  background-color: #d63d62;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.inactive-button {
  background-color: #6c757d;
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: 500;
  display: inline-block;
  cursor: not-allowed;
  opacity: 0.7;
}

.button-container {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.5rem;
}

/* Score boards */
.score-board {
  padding: 0.75rem 1.25rem;
  border-radius: var(--border-radius);
  background: rgba(255, 255, 255, 0.05);
  font-weight: 500;
  margin-bottom: 1rem;
  display: inline-block;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.score-boards-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
  justify-content: center;
}

/* Messages */
.error {
  background-color: rgba(239, 71, 111, 0.2);
  color: #ff8fa3;
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius);
  margin: 1rem 0;
  font-weight: 500;
  border-left: 4px solid var(--danger);
}

.success {
  background-color: rgba(6, 214, 160, 0.2);
  color: #8eecd5;
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius);
  margin: 1rem 0;
  font-weight: 500;
  border-left: 4px solid var(--success);
}

/* Questions and answers styling */
.question-container {
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--border-radius);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.question-text {
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
  line-height: 1.5;
  font-weight: 500;
}

.answer-option {
  display: flex;
  align-items: flex-start;
  margin-bottom: 0.75rem;
  padding: 0.75rem;
  border-radius: var(--border-radius);
  background: rgba(255, 255, 255, 0.02);
  transition: var(--transition);
}

.answer-option:hover {
  background: rgba(255, 255, 255, 0.05);
}

.answer-option input[type="radio"],
.answer-option input[type="checkbox"] {
  margin-right: 0.75rem;
  margin-top: 0.25rem;
}

.answer-option label {
  margin: 0;
  cursor: pointer;
  line-height: 1.5;
}

.correct {
  color: var(--success);
  font-weight: 500;
}

.incorrect {
  color: var(--danger);
  font-weight: 500;
}

/* Admin page additions */
#answers {
  margin-top: 1rem;
}

#answers > div {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
  padding: 0.75rem;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--border-radius);
}

#answers input[type="text"] {
  flex: 1;
  margin-bottom: 0;
  margin-right: 0.75rem;
}

#answers input[type="checkbox"] {
  margin: 0 0.5rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .container, .container_log, .container_admin {
    margin: 1rem;
    padding: 1.5rem;
  }
  
  .button-container {
    flex-direction: column;
  }
  
  .score-boards-container {
    flex-direction: column;
  }
  
  .score-board {
    width: 100%;
    text-align: center;
  }
}

/* Logo and header */
.logo {
  margin-bottom: 2rem;
  text-align: center;
}

.logo h1 {
  font-size: 2.5rem;
  color: var(--text);
  letter-spacing: 1px;
}

.logo span {
  color: var(--primary);
}

/* Quiz completion */
.quiz-complete {
  text-align: center;
  padding: 2rem 1rem;
}

.quiz-complete h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.result-card {
  background: rgba(255, 255, 255, 0.05);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  margin: 1.5rem 0;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.score-value {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);
  margin: 1rem 0;
}

.progress-bar {
  height: 10px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 5px;
  overflow: hidden;
  margin: 1rem 0;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  border-radius: 5px;
  transition: width 0.5s ease;
}