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

/* Base Styling */
body {
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(to bottom, #ff9a9e, #fad0c4);
  color: #333;
}

.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  max-width: 900px;
  margin: auto;
  padding: 1.5rem;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
  border-radius: 15px;
  background: #ffffff;
  overflow: hidden;
  transition: background 0.3s ease-in-out;
}

header {
  position: relative;
  text-align: center;
  padding: 2rem;
  background: linear-gradient(135deg, #6a11cb, #2575fc);
  color: white;
  border-radius: 15px 15px 0 0;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

header h1 {
  font-size: 2.5rem;
  letter-spacing: 2px;
  font-weight: bold;
  text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
}

#theme-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 1.8rem;
  background: none;
  color: white;
  border: none;
  cursor: pointer;
  transition: transform 0.3s ease, color 0.3s ease;
}

#theme-toggle:hover {
  transform: rotate(20deg) scale(1.2);
  color: #ffeb3b;
}

/* Note Input Section */
.note-input {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1.5rem 0;
}

#note-text {
  width: 100%;
  height: 120px;
  padding: 1rem;
  border: 2px solid #ddd;
  border-radius: 10px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
  font-size: 1rem;
  color: #555;
  resize: none;
  transition: border-color 0.3s ease;
}

#note-text:focus {
  outline: none;
  border-color: #6a11cb;
}

#add-note {
  align-self: flex-end;
  padding: 0.8rem 1.5rem;
  font-size: 1rem;
  font-weight: bold;
  background: #6a11cb;
  color: white;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  transition: background 0.3s ease, transform 0.2s ease;
}

#add-note:hover {
  background: #2575fc;
  transform: translateY(-2px);
}

/* Notes Container */
#notes-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.note {
  position: relative;
  background: #f8f9fa;
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  overflow: hidden;
}

.note:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.note p {
  margin: 0;
  font-size: 1rem;
  color: #333;
  word-wrap: break-word;
  white-space: pre-wrap;
  line-height: 1.6;
}

.note .title {
  font-size: 1.2rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
  color: #444;
}

.note .metadata {
  font-size: 0.8rem;
  color: #777;
  margin-bottom: 1rem;
}

.delete-note {
  position: absolute;
  top: 10px;
  right: 10px;
  background: red;
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 1.2rem;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
}

.delete-note:hover {
  background: darkred;
  transform: scale(1.1);
}

/* Footer Styling */
footer {
  text-align: center;
  margin-top: auto;
  padding: 1rem;
  background: linear-gradient(135deg, #6a11cb, #2575fc);
  color: white;
  border-radius: 0 0 15px 15px;
  box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.1);
}

footer p {
  font-size: 0.9rem;
}

/* Dark Theme Styles */
body.dark {
  background: linear-gradient(to bottom, #232526, #414345);
  color: #e0e0e0;
}

body.dark .app-container {
  background: #2c2c2c;
}

body.dark header {
  background: linear-gradient(135deg, #1f1c2c, #928dab);
}

body.dark footer {
  background: linear-gradient(135deg, #1f1c2c, #928dab);
}

body.dark #note-text {
  background: #444;
  color: #ddd;
  border-color: #555;
}

body.dark #add-note {
  background: #928dab;
}

body.dark .note {
  background: #3a3a3a;
  color: white;
}

body.dark .note p {
  color: white;
}

body.dark .delete-note {
  background: #ff3b3b;
}

body.dark #theme-toggle {
  color: #ffeb3b;
}

/* Responsive Design */
@media (max-width: 768px) {
  header h1 {
    font-size: 2rem;
  }

  #theme-toggle {
    top: 15px;
    right: 15px;
  }

  #add-note {
    padding: 0.6rem 1.2rem;
  }
}

@media (max-width: 480px) {
  header h1 {
    font-size: 1.5rem;
  }

  #theme-toggle {
    font-size: 1.5rem;
    top: 10px;
    right: 10px;
  }

  #add-note {
    font-size: 0.9rem;
  }
}