/**
 * @Auteur : Venance Kaou
 * @Projet : Liste de cours dynamique
 * @Date : Mai 2026
 */

/* =============================================
   RESET & VARIABLES
   ============================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-page:       #F4F1EB;
  --bg-card:       #FFFFFF;
  --bg-input:      #F9F7F3;
  --color-primary: #2D6A4F;
  --color-primary-light: #52B788;
  --color-primary-dark:  #1B4332;
  --color-danger:  #C1121F;
  --color-danger-light: #FFE5E5;
  --color-done:    #B7B7A4;
  --color-text:    #2C2C2C;
  --color-text-muted: #888;
  --color-border:  #E0DBD0;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow-card: 0 2px 12px rgba(0,0,0,0.07);
  --font-main: 'Georgia', serif;
  --font-ui: 'Trebuchet MS', sans-serif;
  --transition: 0.2s ease;
}

/* =============================================
   BASE
   ============================================= */
body {
  background-color: var(--bg-page);
  background-image:
    radial-gradient(circle at 20% 10%, rgba(82, 183, 136, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 90%, rgba(45, 106, 79, 0.06) 0%, transparent 50%);
  min-height: 100vh;
  font-family: var(--font-ui);
  color: var(--color-text);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 2rem 1rem 4rem;
}

/* =============================================
   APP CONTAINER
   ============================================= */
.app {
  width: 100%;
  max-width: 540px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* =============================================
   HEADER
   ============================================= */
.header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 1.5rem 1.5rem 1.25rem;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}

.header__icon {
  font-size: 2.5rem;
  line-height: 1;
}

.header__title {
  font-family: var(--font-main);
  font-size: 1.6rem;
  font-weight: normal;
  color: var(--color-primary-dark);
  letter-spacing: -0.5px;
}

.header__subtitle {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

#item-count, #checked-count {
  font-weight: bold;
  color: var(--color-primary);
}

/* =============================================
   FORMULAIRE D'AJOUT
   ============================================= */
.add-section {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}

.add-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.input-group {
  display: flex;
  gap: 8px;
}

.input-text {
  flex: 1;
  padding: 0.65rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition);
}

.input-text:focus {
  border-color: var(--color-primary-light);
  background: #fff;
}

.input-text::placeholder {
  color: #bbb;
}

.input-select {
  padding: 0.65rem 0.5rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--color-text);
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition);
  max-width: 170px;
}

.input-select:focus {
  border-color: var(--color-primary-light);
}

.quantity-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.qty-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.input-qty {
  width: 60px;
  padding: 0.65rem 0.5rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--color-text);
  text-align: center;
  outline: none;
  transition: border-color var(--transition);
}

.input-qty:focus {
  border-color: var(--color-primary-light);
  background: #fff;
}

/* =============================================
   BOUTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.65rem 1.1rem;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-ui);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition), opacity var(--transition), background var(--transition);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn--add {
  background: var(--color-primary);
  color: white;
  flex: 1;
}

.btn--add:hover {
  background: var(--color-primary-dark);
}

.btn__icon {
  font-size: 1.1rem;
  line-height: 1;
}

.btn--secondary {
  background: var(--bg-input);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.btn--secondary:hover {
  background: var(--color-border);
  color: var(--color-text);
}

.btn--danger {
  background: var(--color-danger-light);
  color: var(--color-danger);
  border: 1px solid #f5c6c6;
}

.btn--danger:hover {
  background: #f8d7d7;
}

/* =============================================
   FILTRES
   ============================================= */
.filters {
  display: flex;
  gap: 8px;
  padding: 0 2px;
}

.filter-btn {
  flex: 1;
  padding: 0.55rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition);
  font-weight: 500;
}

.filter-btn:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary);
}

.filter-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

/* =============================================
   ÉTAT VIDE
   ============================================= */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--color-border);
}

.empty-state__icon {
  font-size: 3rem;
  margin-bottom: 0.75rem;
}

.empty-state__text {
  font-family: var(--font-main);
  font-size: 1.1rem;
  color: var(--color-text);
  margin-bottom: 4px;
}

.empty-state__sub {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.hidden {
  display: none !important;
}

/* =============================================
   LISTE DES ARTICLES
   ============================================= */
.shopping-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Article individuel */
.list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0.9rem 1rem;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
  animation: slideIn 0.25s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.list-item:hover {
  border-color: var(--color-primary-light);
}

/* État "fait" de l'article */
.list-item--done {
  opacity: 0.6;
  background: #FAFAF8;
}

.list-item--done .item-name {
  text-decoration: line-through;
  color: var(--color-done);
}

/* Bouton de coche */
.item-check {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid var(--color-primary-light);
  background: transparent;
  color: var(--color-primary-light);
  font-size: 0.9rem;
  font-weight: bold;
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.item-check:hover {
  background: var(--color-primary-light);
  color: white;
}

/* Quand l'item est done, le bouton devient plein */
.list-item--done .item-check {
  background: var(--color-primary-light);
  color: white;
  border-color: var(--color-primary-light);
}

/* Infos de l'article */
.item-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.item-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition);
}

.item-meta {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Bouton de suppression */
.item-delete {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: #CCC;
  font-size: 0.85rem;
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.item-delete:hover {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

/* =============================================
   FOOTER ACTIONS
   ============================================= */
.footer {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  padding-top: 0.5rem;
}

/* =============================================
   RESPONSIVE (petits écrans)
   ============================================= */
@media (max-width: 480px) {
  body {
    padding: 1rem 0.75rem 3rem;
  }

  .input-group {
    flex-direction: column;
  }

  .input-select {
    max-width: 100%;
  }

  .footer {
    flex-direction: column;
  }

  .btn {
    justify-content: center;
  }
}