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

:root {
  --clr-bg:       #f8f8f5;
  --clr-surface:  #ffffff;
  --clr-text:     #1a1a1a;
  --clr-muted:    #6b7280;
  --clr-border:   #e5e5e5;
  --clr-primary:  #2d6a4f;
  --clr-primary-light: #d8f3dc;
  --clr-accent:   #e07a3a;
  --clr-accent-light: #fde8d0;
  --clr-gf:       #6d28d9;
  --clr-gf-bg:    #ede9fe;
  --clr-df:       #0369a1;
  --clr-df-bg:    #e0f2fe;
  --clr-danger:   #dc2626;
  --radius:       10px;
  --shadow:       0 1px 3px rgba(0,0,0,.08);
  --font:         'Inter', system-ui, -apple-system, sans-serif;
}

html { font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.5;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
}

/* ===== HEADER ===== */
.app-header {
  text-align: center;
  padding: 1.75rem 1rem 1rem;
}
.app-header h1 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--clr-primary);
}
.subtitle {
  font-size: .85rem;
  color: var(--clr-muted);
  margin-top: .15rem;
}

/* ===== TABS ===== */
.tabs {
  display: flex;
  gap: .25rem;
  padding: 0 1rem;
  border-bottom: 1px solid var(--clr-border);
  position: sticky;
  top: 0;
  background: var(--clr-bg);
  z-index: 10;
}
.tab {
  flex: 1;
  padding: .65rem .5rem;
  border: none;
  background: none;
  font: inherit;
  font-size: .9rem;
  font-weight: 500;
  color: var(--clr-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.tab.active {
  color: var(--clr-primary);
  border-bottom-color: var(--clr-primary);
}

/* ===== MAIN / PANELS ===== */
main { padding: 1rem; max-width: 640px; margin: 0 auto; }
.panel { display: none; }
.panel.active { display: block; }

/* ===== TOOLBAR ===== */
.panel-toolbar { margin-bottom: 1rem; }
#search-input {
  width: 100%;
  padding: .6rem .75rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  font: inherit;
  font-size: .9rem;
  background: var(--clr-surface);
  margin-bottom: .6rem;
}
#search-input:focus { outline: 2px solid var(--clr-primary); outline-offset: -1px; }

.filter-chips { display: flex; gap: .4rem; flex-wrap: wrap; }
.chip {
  padding: .3rem .7rem;
  border: 1px solid var(--clr-border);
  border-radius: 999px;
  background: var(--clr-surface);
  font: inherit;
  font-size: .8rem;
  cursor: pointer;
  color: var(--clr-muted);
  transition: all .15s;
}
.chip.active {
  background: var(--clr-primary);
  color: #fff;
  border-color: var(--clr-primary);
}

/* ===== MEAL GRID / CARDS ===== */
.meal-grid {
  display: grid;
  gap: .75rem;
}

.meal-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: .85rem 1rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: .4rem;
  transition: border-color .15s, box-shadow .15s;
}
.meal-card.selected {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 2px var(--clr-primary-light);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
}
.card-name {
  font-weight: 600;
  font-size: .95rem;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.card-tags { display: flex; gap: .3rem; flex-shrink: 0; }
.tag {
  font-size: .65rem;
  font-weight: 600;
  padding: .15rem .45rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.tag-gf { background: var(--clr-gf-bg); color: var(--clr-gf); }
.tag-df { background: var(--clr-df-bg); color: var(--clr-df); }

.card-ingredients {
  font-size: .8rem;
  color: var(--clr-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: .25rem;
}
.card-link {
  font-size: .78rem;
  color: var(--clr-primary);
  text-decoration: none;
  font-weight: 500;
}
.card-link:hover { text-decoration: underline; }

/* Select / Remove buttons on cards */
.btn-select, .btn-remove {
  border: none;
  border-radius: 6px;
  font: inherit;
  font-size: .78rem;
  font-weight: 600;
  padding: .3rem .65rem;
  cursor: pointer;
  transition: background .15s;
}
.btn-select {
  background: var(--clr-primary-light);
  color: var(--clr-primary);
}
.card-actions { display: flex; gap: .35rem; align-items: center; }
.btn-select:hover { background: #b7e4c7; }
.btn-select.added {
  background: var(--clr-primary);
  color: #fff;
}
.btn-remove {
  background: #fee2e2;
  color: var(--clr-danger);
}
.btn-remove:hover { background: #fecaca; }
.btn-delete {
  border: none;
  border-radius: 6px;
  font: inherit;
  font-size: .78rem;
  font-weight: 600;
  padding: .3rem .5rem;
  cursor: pointer;
  background: transparent;
  color: var(--clr-muted);
  transition: color .15s, background .15s;
}
.btn-delete:hover {
  background: #fee2e2;
  color: var(--clr-danger);
}

/* ===== BUTTONS ===== */
.btn {
  display: block;
  width: 100%;
  padding: .7rem;
  border: none;
  border-radius: var(--radius);
  font: inherit;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  margin-top: .75rem;
  transition: opacity .15s, background .15s;
}
.btn:active { opacity: .85; }
.btn-primary { background: var(--clr-primary); color: #fff; }
.btn-accent  { background: var(--clr-accent); color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--clr-danger);
  border: 1px solid var(--clr-danger);
}

/* ===== GROCERY LIST ===== */
#grocery-section { margin-top: 1.5rem; }
#grocery-section h2 {
  font-size: 1.1rem;
  margin-bottom: .5rem;
  color: var(--clr-primary);
}
#grocery-list {
  list-style: none;
  padding: 0;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
}
#grocery-list li {
  padding: .55rem .85rem;
  font-size: .88rem;
  border-bottom: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  gap: .5rem;
}
#grocery-list li::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--clr-primary);
  flex-shrink: 0;
}
#grocery-list li:last-child { border-bottom: none; }

/* ===== ADD FORM ===== */
.add-form { display: flex; flex-direction: column; gap: .6rem; }
.add-form label {
  font-weight: 500;
  font-size: .88rem;
}
.add-form label small { color: var(--clr-muted); font-weight: 400; }
.add-form input, .add-form textarea {
  padding: .6rem .75rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  font: inherit;
  font-size: .9rem;
  background: var(--clr-surface);
}
.add-form input:focus, .add-form textarea:focus {
  outline: 2px solid var(--clr-primary);
  outline-offset: -1px;
}
.tag-fieldset {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: .6rem .75rem;
}
.tag-fieldset legend {
  font-size: .85rem;
  font-weight: 500;
  padding: 0 .25rem;
}
.tag-check {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  margin-right: 1rem;
  font-size: .85rem;
  font-weight: 400;
  cursor: pointer;
}
.form-status {
  font-size: .85rem;
  text-align: center;
  padding: .4rem;
  border-radius: var(--radius);
}
.form-status.success { color: var(--clr-primary); background: var(--clr-primary-light); }
.form-status.error   { color: var(--clr-danger); background: #fee2e2; }

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--clr-text);
  color: #fff;
  padding: .55rem 1.2rem;
  border-radius: 999px;
  font-size: .85rem;
  font-weight: 500;
  box-shadow: 0 4px 12px rgba(0,0,0,.15);
  opacity: 0;
  transition: opacity .25s;
  z-index: 100;
  pointer-events: none;
}
.toast.show { opacity: 1; }

/* ===== UTILITIES ===== */
.hidden { display: none !important; }
.empty-state {
  text-align: center;
  color: var(--clr-muted);
  padding: 2rem 1rem;
  font-size: .9rem;
}
.loader {
  text-align: center;
  color: var(--clr-muted);
  padding: 2rem 1rem;
  font-size: .9rem;
}
.spinner {
  display: inline-block;
  width: 16px; height: 16px;
  border: 2px solid var(--clr-border);
  border-top-color: var(--clr-primary);
  border-radius: 50%;
  animation: spin .6s linear infinite;
  vertical-align: middle;
  margin-right: .35rem;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== RESPONSIVE ===== */
@media (min-width: 480px) {
  .meal-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 640px) {
  main { padding: 1.5rem; }
  .app-header { padding-top: 2.25rem; }
}