/* Modern UI for Secret Notes Application */
:root {
  --primary-color: #6c5ce7;
  --primary-light: #a29bfe;
  --secondary-color: #00cec9;
  --dark-color: #2d3436;
  --light-color: #f5f6fa;
  --danger-color: #e74c3c;
  --success-color: #00b894;
  --border-radius: 8px;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

html, body {
  overflow-x: hidden;
  padding: 0;
  margin: 0;
  font-family: 'Poppins', 'Open Sans', sans-serif;
  background-color: var(--light-color);
  color: var(--dark-color);
  line-height: 1.6;
}

li {
  list-style: none;
}

a {
  text-decoration: none;
  color: var(--primary-color);
  transition: var(--transition);
}

a:hover {
  color: var(--primary-light);
}

.login {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  background-color: white;
  padding: 2.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.login h1 {
  color: var(--primary-color);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-align: center;
}

.login h4 {
  color: var(--danger-color);
  font-size: 0.9rem;
  margin-top: 1rem;
  text-align: center;
}

.login h5 {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  text-align: center;
}

.login input {
  width: 100%;
  margin-bottom: 1rem;
  padding: 0.8rem 1rem;
  font-size: 1rem;
  border: 1px solid #e1e1e1;
  border-radius: var(--border-radius);
  transition: var(--transition);
  background-color: #f9f9f9;
}

.login input:focus {
  outline: none;
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1);
}

.login button {
  width: 100%;
  padding: 0.8rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 1rem;
}

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

.text-with-underline {
  text-decoration: underline;
  cursor: pointer;
  color: var(--primary-color);
}

.tabsNav {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  overflow: hidden;
}

.navItem {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--dark-color);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  background-color: transparent;
}

.navItem:hover, .navItem.active {
  background-color: var(--primary-color);
  color: white;
}

.indexTitle {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 2rem;
  text-align: center;
}

.indexList {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 1.5rem;
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  overflow: hidden;
}

.indexList table {
  width: 100%;
  border-collapse: collapse;
}

.indexList th {
  background-color: var(--primary-color);
  color: white;
  padding: 1rem;
  text-align: left;
  font-weight: 600;
}

.indexList td {
  padding: 1rem;
  border-bottom: 1px solid #f1f1f1;
}

.indexList tr:last-child td {
  border-bottom: none;
}

.indexList tr:hover {
  background-color: #f9f9f9;
}

.action-button {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: var(--primary-color);
  color: white;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

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

/* Empty Notes State */
.empty-notes {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin-top: 2rem;
  text-align: center;
}

.empty-notes-icon {
  font-size: 4rem;
  margin-bottom: 1.5rem;
}

.empty-notes h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--dark-color);
  margin-bottom: 1rem;
}

.empty-notes p {
  font-size: 1rem;
  color: #666;
  margin-bottom: 2rem;
  max-width: 500px;
}

.create-note-button {
  display: inline-block;
  padding: 0.8rem 2rem;
  background-color: var(--primary-color);
  color: white;
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: var(--transition);
}

.create-note-button:hover {
  background-color: var(--primary-light);
  transform: translateY(-2px);
}

.createContent {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

.createForm {
  width: 100%;
  max-width: 800px;
  background-color: white;
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.createText {
  width: 100%;
  height: 300px;
  padding: 1rem;
  font-size: 1rem;
  border: 1px solid #e1e1e1;
  border-radius: var(--border-radius);
  resize: vertical;
  transition: var(--transition);
  background-color: #f9f9f9;
}

.createText:focus {
  outline: none;
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1);
}

.createInput {
  margin-top: 1.5rem;
  padding: 0.8rem 2rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

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

.header {
  background-color: white;
  border-bottom: none;
  box-shadow: var(--box-shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.headerContent {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
}

.headerLeftBlock {
  display: flex;
  align-items: center;
}

.headerTitle {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-right: 2rem;
}

.headerNav {
  margin-left: 1.5rem;
  font-weight: 500;
  color: var(--dark-color);
  position: relative;
}

.headerNav:hover {
  color: var(--primary-color);
}

.headerNav::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -2px;
  left: 0;
  background-color: var(--primary-color);
  transition: var(--transition);
}

.headerNav:hover::after {
  width: 100%;
}

.main {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 2rem;
}

.mainTitle {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  text-align: center;
}

.mainText {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  color: var(--dark-color);
  line-height: 1.8;
}

.logout {
  margin-top: 2rem;
  text-align: center;
}

.logout a {
  display: inline-block;
  padding: 0.8rem 2rem;
  background-color: var(--danger-color);
  color: white;
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: var(--transition);
}

.logout a:hover {
  background-color: #c0392b;
  transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
  .headerContent {
    flex-direction: column;
    padding: 1rem;
  }
  
  .headerLeftBlock, .headerRightBlock {
    margin: 0.5rem 0;
  }
  
  .main {
    padding: 0 1rem;
  }
  
  .mainTitle {
    font-size: 2rem;
  }
  
  .login {
    width: 90%;
    max-width: 400px;
  }
  
  .createForm {
    padding: 1rem;
  }
  
  .indexList {
    display: block;
    overflow-x: auto;
  }
}