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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  overflow: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

#app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

#ui-container {
  display: flex;
  flex-direction: column;
  gap: var(--gap-base);
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--padding-base);
}

.screen-name {
  font-size: var(--font-size-large);
  background-color: var(--color-bg-highlight);
  padding: 0.4rem 0.8rem;
  border-radius: var(--border-radius);
  color: var(--color-text-primary);
}

.icons {
  display: flex;
  gap: var(--gap-base);
}

.icon {
  font-size: var(--font-size-large);
  background-color: var(--color-bg-highlight);
  border-radius: var(--border-radius);
  border: none;
  color: var(--color-text-primary);
  cursor: pointer;
  padding: 0.4rem 0.8rem;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.icon:hover {
  color: var(--color-text-highlight);
}

/* Popup */
.popup {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: var(--color-bg-highlight);
  padding: var(--padding-base);
  border-radius: var(--border-radius);
  color: var(--color-text-primary);
  display: flex;
  flex-direction: column;
  gap: var(--gap-base);
  z-index: 1001;
  width: 90%;
  max-width: 400px;
}

.popup.hidden {
  display: none;
}

.popup h3 {
  font-size: var(--font-size-large);
  color: var(--color-text-highlight);
}

.popup-content {
  font-size: var(--font-size-base);
}

.popup-buttons {
  display: flex;
  justify-content: flex-end;
  gap: var(--gap-base);
}

.popup-buttons button {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: var(--font-size-small);
  transition: background-color var(--transition-fast);
}

.popup-buttons .btn-add {
  background-color: var(--color-success);
  color: white;
}

.popup-buttons .btn-cancel {
  background-color: var(--color-error);
  color: white;
}

.popup-buttons button:hover {
  opacity: 0.9;
}

/* Inputs and Forms */
form {
  display: flex;
  flex-direction: column;
  gap: var(--gap-base);
  padding: var(--padding-base);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

input, select, textarea {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast);
}

input:focus, select:focus, textarea:focus {
  border-color: var(--color-text-highlight);
  outline: none;
}

label {
  font-size: var(--font-size-small);
  color: var(--color-text-primary);
}

/* Messages */
#messages {
  position: fixed;
  bottom: var(--gap-base);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--gap-base);
  z-index: 1000;
  width: 100%;
}

.message {
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-size: var(--font-size-small);
  color: white;
  text-align: center;
  min-width: 200px;
  animation: fadeIn var(--transition-fast), fadeOut var(--transition-fast) 1.2s;
}

.message.info {
  background-color: var(--color-info);
}

.message.warning {
  background-color: var(--color-warning);
}

.message.error {
  background-color: var(--color-error);
}

.message.success {
  background-color: var(--color-success);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--gap-base);
  }

  .screen-name {
    width: 100%;
    text-align: center;
  }

  .icons {
    justify-content: center;
  }

  form {
    padding: var(--gap-base);
  }
}