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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  min-height: 100vh;
  color: #fff;
}

.hidden {
  display: none !important;
}

/* Login */
#login-section {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.login-box {
  background: rgba(255, 255, 255, 0.1);
  padding: 40px;
  border-radius: 16px;
  backdrop-filter: blur(10px);
  width: 100%;
  max-width: 400px;
}

.login-box h1 {
  text-align: center;
  margin-bottom: 30px;
  font-size: 28px;
}

.login-box input {
  width: 100%;
  padding: 14px;
  margin-bottom: 16px;
  border: none;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 16px;
}

.login-box input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.login-box button {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 8px;
  background: #e94560;
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  transition: background 0.3s;
}

.login-box button:hover {
  background: #ff6b6b;
}

.error {
  color: #ff6b6b;
  text-align: center;
  margin-top: 10px;
}

/* Dashboard */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background: rgba(0, 0, 0, 0.3);
}

header h1 {
  font-size: 24px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 16px;
}

#logout-btn {
  padding: 8px 16px;
  border: 1px solid #e94560;
  background: transparent;
  color: #e94560;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s;
}

#logout-btn:hover {
  background: #e94560;
  color: #fff;
}

/* Navigation */
nav {
  display: flex;
  gap: 10px;
  padding: 20px 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-btn {
  padding: 12px 24px;
  border: none;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s;
}

.nav-btn:hover, .nav-btn.active {
  background: #e94560;
}

/* Tab Content */
.tab-content {
  padding: 30px 40px;
}

.tab-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.tab-header h2 {
  font-size: 22px;
}

.actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.btn-primary {
  padding: 12px 24px;
  border: none;
  background: #e94560;
  color: #fff;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  transition: background 0.3s;
}

.btn-primary:hover {
  background: #ff6b6b;
}

.btn-secondary {
  padding: 12px 24px;
  border: 1px solid #4ecca3;
  background: transparent;
  color: #4ecca3;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.3s;
}

.btn-secondary:hover {
  background: #4ecca3;
  color: #1a1a2e;
}

select {
  padding: 12px 16px;
  border: none;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 14px;
  cursor: pointer;
}

select option {
  background: #1a1a2e;
  color: #fff;
}

/* Lists */
.list {
  display: grid;
  gap: 16px;
}

.card {
  background: rgba(255, 255, 255, 0.08);
  padding: 20px;
  border-radius: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.card-info h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.card-info p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
}

.card-info .badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  margin-top: 8px;
}

.badge.free {
  background: #4ecca3;
  color: #1a1a2e;
}

.badge.paid {
  background: #ffc107;
  color: #1a1a2e;
}

.badge.admin {
  background: #e94560;
  color: #fff;
}

.card-actions {
  display: flex;
  gap: 10px;
}

.btn-edit {
  padding: 8px 16px;
  border: 1px solid #4ecca3;
  background: transparent;
  color: #4ecca3;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-edit:hover {
  background: #4ecca3;
  color: #1a1a2e;
}

.btn-delete {
  padding: 8px 16px;
  border: 1px solid #ff6b6b;
  background: transparent;
  color: #ff6b6b;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-delete:hover {
  background: #ff6b6b;
  color: #fff;
}

.btn-gold {
  padding: 8px 16px;
  border: 1px solid #ffc107;
  background: transparent;
  color: #ffc107;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-gold:hover {
  background: #ffc107;
  color: #1a1a2e;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal {
  background: #1a1a2e;
  border-radius: 16px;
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-header h3 {
  font-size: 20px;
}

.close-btn {
  background: none;
  border: none;
  color: #fff;
  font-size: 28px;
  cursor: pointer;
}

#modal-content {
  padding: 20px;
}

#modal-content form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

#modal-content label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

#modal-content input,
#modal-content textarea,
#modal-content select {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 14px;
}

#modal-content textarea {
  min-height: 100px;
  resize: vertical;
}

#modal-content .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

#modal-content .form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

#modal-content button[type="submit"] {
  padding: 14px;
  border: none;
  border-radius: 8px;
  background: #e94560;
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  margin-top: 10px;
}

#modal-content button[type="submit"]:hover {
  background: #ff6b6b;
}

/* Questions specific */
.question-card {
  background: rgba(255, 255, 255, 0.05);
  padding: 16px;
  border-radius: 10px;
  border-left: 4px solid #4ecca3;
}

.question-card.facile {
  border-left-color: #4ecca3;
}

.question-card.intermediaire {
  border-left-color: #ffc107;
}

.question-card.expert {
  border-left-color: #e94560;
}

.question-card h4 {
  margin-bottom: 10px;
  font-size: 16px;
}

.question-card .answers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 12px 0;
}

.question-card .answer {
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  font-size: 13px;
}

.question-card .answer.correct {
  background: rgba(78, 204, 163, 0.3);
  border: 1px solid #4ecca3;
}

.question-card .meta {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
}