/* === BASE RESET === */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #f9f9f9, #e3e3e3);
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #222;
}

.container {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  width: 100%;
  max-width: 420px;
  animation: fadeIn 0.4s ease-in-out;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

/* === TYPOGRAPHY === */
h2, h3 {
  color: #333;
  margin-bottom: 1rem;
  text-align: center;
}

p {
  margin-top: 1rem;
  text-align: center;
  font-size: 0.9rem;
}

a {
  color: #007BFF;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* === FORMS & INPUTS === */
input, select {
  width: 100%;
  padding: 0.75rem;
  margin-bottom: 1rem;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 1rem;
  transition: border 0.2s ease-in-out;
}
input:focus, select:focus {
  border-color: #007BFF;
  outline: none;
}

/* === BUTTONS === */
button {
  width: 100%;
  padding: 0.75rem;
  background-color: #007BFF;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.2s ease;
}
button:hover {
  background-color: #0056b3;
}
.btn {
  padding: 0.6rem 1rem;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.btn-logout {
  background-color: #dc3545;
  color: white;
  margin-bottom: 20px;
}
.btn-logout:hover {
  background-color: #c82333;
}
.btn-delete {
  background-color: #6c757d;
  color: white;
}
.btn-delete:hover {
  background-color: #5a6268;
}

/* === APPOINTMENT LIST === */
#appointmentList {
  list-style: none;
  padding: 0;
  margin-top: 1rem;
}
#appointmentList li {
  background: #f8f9fa;
  padding: 1rem;
  margin-bottom: 10px;
  border-radius: 10px;
  font-size: 0.95rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  gap: 1rem;
}
.appointment-info {
  flex: 1;
  color: inherit;
  font-size: 0.95rem;
  line-height: 1.4;
}


/* === ANIMATION: Confirmation Box === */
.animate-confirm {
  animation: slideUpFade 0.6s ease-out;
}
@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes slideUpFade {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0px); opacity: 1; }
}

/* === TOAST NOTIFICATION === */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: #28a745;
  color: white;
  padding: 12px 20px;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  font-size: 0.95rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease, transform 0.5s ease;
  z-index: 9999;
}
.toast.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

/* === DARK MODE TOGGLE SWITCH === */
.toggle-switch {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
}
.toggle-switch input {
  display: none;
}
.toggle-switch .slider {
  width: 50px;
  height: 26px;
  background-color: #ccc;
  display: block;
  border-radius: 30px;
  position: relative;
  cursor: pointer;
  transition: background-color 0.3s ease;
}
.toggle-switch .slider::before {
  content: "";
  width: 20px;
  height: 20px;
  background-color: white;
  border-radius: 50%;
  position: absolute;
  top: 3px;
  left: 4px;
  transition: transform 0.3s ease;
}
.toggle-switch input:checked + .slider {
  background-color: #333;
}
.toggle-switch input:checked + .slider::before {
  transform: translateX(24px);
}

/* === DARK MODE OVERRIDES === */
body.dark-mode {
  background: #121212;
  color: #f1f1f1;
}
body.dark-mode .container {
  background: rgba(30, 30, 30, 0.4);
  color: #f1f1f1;
  border: 1px solid rgba(255, 255, 255, 0.1);
}
body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3,
body.dark-mode label,
body.dark-mode p,
body.dark-mode a,
body.dark-mode span {
  color: #f1f1f1;
}
body.dark-mode input,
body.dark-mode select,
body.dark-mode textarea {
  background-color: #2c2c2c;
  color: #ffffff;
  border: 1px solid #444;
}
body.dark-mode input::placeholder,
body.dark-mode select::placeholder,
body.dark-mode textarea::placeholder {
  color: #bbbbbb;
}
body.dark-mode .btn,
body.dark-mode button {
  background-color: #444;
  color: white;
}
body.dark-mode .btn:hover,
body.dark-mode button:hover {
  background-color: #666;
}
body.dark-mode #appointmentList li {
  background-color: #1e1e1e;
  border: 1px solid #333;
}