/* ===== Variables ===== */
:root {
  --primary: #6C63FF;
  --primary-light: #EEE9FF;
  --primary-dark: #5A52D5;
  --surface: #FFFFFF;
  --background: #F4F3FF;
  --on-surface: #1C1B1F;
  --on-surface-muted: #6B7280;
  --border: #E5E7EB;
  --shadow: 0 2px 12px rgba(108, 99, 255, 0.08);
  --shadow-hover: 0 6px 24px rgba(108, 99, 255, 0.18);
  --radius: 20px;
  --radius-sm: 12px;
  --radius-chip: 50px;
  --transition: 0.2s ease;
  --danger: #EF4444;
  --success: #22C55E;
}

[data-theme="dark"] {
  --primary: #9C8FFF;
  --primary-light: #2D2B45;
  --primary-dark: #C4BAFF;
  --surface: #1E1E2E;
  --background: #13131F;
  --on-surface: #E8E8F0;
  --on-surface-muted: #9494AA;
  --border: #2E2E42;
  --shadow: 0 2px 12px rgba(0,0,0,0.3);
  --shadow-hover: 0 6px 24px rgba(0,0,0,0.4);
}

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

body {
  font-family: 'Inter', sans-serif;
  background: var(--background);
  color: var(--on-surface);
  min-height: 100vh;
  padding-bottom: 80px;
  transition: background 0.3s, color 0.3s;
}

/* ===== App ===== */
.app { max-width: 720px; margin: 0 auto; }

/* ===== Header ===== */
.app-header {
  background: linear-gradient(135deg, var(--primary) 0%, #9C8FFF 100%);
  color: white;
  padding: 32px 24px 28px;
  border-radius: 0 0 28px 28px;
  margin-bottom: 24px;
  box-shadow: 0 4px 20px rgba(108, 99, 255, 0.3);
}

.header-content {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-text { flex: 1; }

.header-icon {
  font-size: 40px;
  background: rgba(255,255,255,0.2);
  border-radius: 16px;
  padding: 10px;
}

.app-header h1 { font-size: 22px; font-weight: 700; line-height: 1.2; }
.app-header p { font-size: 14px; opacity: 0.85; margin-top: 4px; }

/* ===== Main ===== */
.main-content {
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ===== Cards ===== */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), background 0.3s;
}

.card:hover { box-shadow: var(--shadow-hover); }

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.card-header .material-icons-round { color: var(--primary); font-size: 22px; }
.card-header h2 { font-size: 16px; font-weight: 600; flex: 1; }
.card-hint { font-size: 13px; color: var(--on-surface-muted); margin-bottom: 12px; }

.card-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card-half { margin: 0; }

/* ===== Feature Toggles ===== */
.feature-toggles { display: flex; flex-direction: column; gap: 12px; }

.feature-toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.feature-toggle input[type="checkbox"] { display: none; }

.toggle-track {
  width: 44px;
  height: 24px;
  background: var(--border);
  border-radius: 50px;
  position: relative;
  transition: background var(--transition);
  flex-shrink: 0;
}

.toggle-track::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  background: white;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: transform var(--transition);
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.feature-toggle input:checked + .toggle-track { background: var(--primary); }
.feature-toggle input:checked + .toggle-track::after { transform: translateX(20px); }
.toggle-label { font-size: 14px; font-weight: 500; }

/* ===== Textarea ===== */
textarea {
  width: 100%;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: var(--on-surface);
  background: var(--background);
  resize: vertical;
  transition: border-color var(--transition);
  outline: none;
}

textarea:focus { border-color: var(--primary); background: var(--surface); }
textarea::placeholder { color: var(--on-surface-muted); }

/* ===== Text Input ===== */
.text-input {
  flex: 1;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: var(--on-surface);
  background: var(--background);
  outline: none;
  transition: border-color var(--transition);
}

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

.inline-row { display: flex; gap: 8px; align-items: center; }

/* ===== Chips ===== */
.chip-group { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  background: var(--background);
  border: 2px solid transparent;
  border-radius: var(--radius-chip);
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  user-select: none;
  color: var(--on-surface);
}

.chip:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }
.chip.selected { background: var(--primary-light); border-color: var(--primary); color: var(--primary-dark); font-weight: 600; }

/* ===== Toggle Buttons ===== */
.toggle-group { display: flex; gap: 8px; }

.toggle-btn {
  flex: 1;
  padding: 10px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--background);
  color: var(--on-surface);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.toggle-btn:hover { border-color: var(--primary); color: var(--primary); }
.toggle-btn.active { background: var(--primary-light); border-color: var(--primary); color: var(--primary-dark); font-weight: 600; }

/* ===== Select ===== */
.select-input {
  width: 100%;
  padding: 10px 36px 10px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: var(--on-surface);
  background: var(--background);
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='%236C63FF'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}

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

/* ===== Slider ===== */
.slider-container { display: flex; align-items: center; gap: 12px; margin-top: 4px; }

input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  height: 4px;
  border-radius: 4px;
  background: var(--border);
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(108,99,255,0.4);
  transition: transform var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.2); }
.slider-label { font-size: 13px; font-weight: 600; color: var(--primary); min-width: 50px; text-align: right; }

/* ===== Counter ===== */
.counter { display: flex; align-items: center; justify-content: center; gap: 20px; margin-top: 8px; }

.counter-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  background: var(--surface);
  color: var(--primary);
  font-size: 20px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.counter-btn:hover { background: var(--primary); color: white; }
.counter-value { font-size: 26px; font-weight: 700; color: var(--primary); min-width: 32px; text-align: center; }

/* ===== Buttons ===== */
.fab-button {
  width: 100%;
  padding: 18px;
  border: none;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary), #9C8FFF);
  color: white;
  font-family: 'Inter', sans-serif;
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 4px 20px rgba(108,99,255,0.35);
  transition: all var(--transition);
  letter-spacing: 0.3px;
}

.fab-button:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(108,99,255,0.45); }
.fab-button:active { transform: translateY(0); }
.fab-button:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.fab-button .material-icons-round { font-size: 22px; }

.surprise-btn {
  width: 100%;
  margin-top: 10px;
  padding: 12px;
  border: 2px dashed var(--primary);
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  color: var(--primary);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition);
}

.surprise-btn:hover { background: var(--primary); color: white; }

.secondary-btn {
  width: 100%;
  margin-top: 12px;
  padding: 12px;
  border: 2px solid var(--primary);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--primary);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition);
}

.secondary-btn:hover { background: var(--primary-light); }

.small-btn {
  padding: 10px 16px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: white;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

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

.icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--on-surface-muted);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  flex-shrink: 0;
}

.icon-btn:hover { background: var(--primary-light); color: var(--primary); }
.dark-toggle { color: white !important; }
.dark-toggle:hover { background: rgba(255,255,255,0.2) !important; }

/* ===== Loading ===== */
.loading { text-align: center; padding: 32px; }

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--primary-light);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
  margin: 0 auto 16px;
}

.mini-spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--primary-light);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
  margin: 12px auto;
}

@keyframes spin { to { transform: rotate(360deg); } }
.loading p { color: var(--on-surface-muted); font-size: 15px; font-weight: 500; }

/* ===== Result Card ===== */
.result-card { border: 2px solid var(--primary-light); }
.result-actions { display: flex; gap: 4px; margin-left: auto; }

.recipe-content {
  font-size: 14px;
  line-height: 1.8;
  color: var(--on-surface);
  white-space: pre-wrap;
}

.recipe-divider {
  font-weight: 700;
  color: var(--primary);
  font-size: 15px;
  margin: 16px 0 8px;
  padding: 8px 12px;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
}

.sub-result {
  margin-top: 12px;
  padding: 12px;
  background: var(--background);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

/* ===== History / Favourites ===== */
.history-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition);
  border-bottom: 1px solid var(--border);
}

.history-item:last-child { border-bottom: none; }
.history-item:hover { background: var(--primary-light); }
.history-item .material-icons-round { color: var(--primary); font-size: 20px; }
.history-item strong { display: block; font-size: 14px; color: var(--on-surface); }
.history-item small { font-size: 12px; color: var(--on-surface-muted); }

.empty-msg { color: var(--on-surface-muted); font-size: 14px; text-align: center; padding: 16px; }
.error-msg { color: var(--danger); font-size: 13px; }

/* ===== Bottom Nav ===== */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: center;
  gap: 0;
  padding: 8px 0 12px;
  z-index: 100;
  box-shadow: 0 -2px 12px rgba(0,0,0,0.08);
}

.nav-btn {
  flex: 1;
  max-width: 200px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--on-surface-muted);
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 500;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav-btn:hover { color: var(--primary); }
.nav-btn .material-icons-round { font-size: 22px; }

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 16px;
}

.modal {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.modal h3 { font-size: 18px; margin-bottom: 8px; }
.modal p { font-size: 14px; color: var(--on-surface-muted); margin-bottom: 16px; }

.share-link-box { display: flex; gap: 8px; margin-bottom: 12px; }
.share-link-box input {
  flex: 1;
  padding: 10px 12px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--on-surface);
  background: var(--background);
  outline: none;
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--on-surface);
  color: var(--surface);
  padding: 12px 20px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  z-index: 300;
  opacity: 0;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.toast-show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ===== Feature Card ===== */
.feature-card { border: 2px solid var(--primary-light); }

/* ===== Auth ===== */
.auth-header-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.auth-indicator {
  width: 10px;
  height: 10px;
  background: var(--success);
  border-radius: 50%;
  position: absolute;
  bottom: 4px;
  right: 4px;
  border: 2px solid white;
}

.user-avatar {
  width: 28px;
  height: 28px;
  background: white;
  color: var(--primary);
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-subtitle {
  font-size: 13px;
  color: var(--on-surface-muted);
  margin-bottom: 16px !important;
  text-align: center;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 4px;
}

.auth-error {
  color: var(--danger);
  font-size: 13px;
  min-height: 18px;
  margin: 0 !important;
}

.google-btn {
  width: 100%;
  padding: 12px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--on-surface);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all var(--transition);
  margin-bottom: 4px;
}

.google-btn:hover {
  border-color: #4285F4;
  background: #f0f6ff;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 4px 0 8px;
  color: var(--on-surface-muted);
  font-size: 12px;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.forgot-btn {
  background: none;
  border: none;
  color: var(--primary);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  cursor: pointer;
  text-align: center;
  padding: 4px;
  transition: opacity var(--transition);
}

.forgot-btn:hover { opacity: 0.7; }

.auth-note {
  font-size: 12px;
  color: var(--on-surface-muted);
  text-align: center;
  margin-top: 16px !important;
}

.user-menu {
  position: fixed;
  top: 72px;
  right: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-hover);
  z-index: 200;
  min-width: 200px;
  padding: 8px 0;
  animation: fadeIn 0.15s ease;
}

.user-menu-email {
  font-size: 13px;
  color: var(--on-surface-muted);
  padding: 8px 16px 4px;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.menu-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 6px 0;
}

.user-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 16px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: var(--on-surface);
  transition: background var(--transition);
}

.user-menu-item:hover { background: var(--primary-light); color: var(--primary); }
.user-menu-item .material-icons-round { font-size: 18px; }

.sync-badge {
  display: block;
  text-align: center;
  font-size: 12px;
  color: var(--on-surface-muted);
  padding: 8px;
  margin-top: 4px;
}

.sync-badge.local a { color: var(--primary); }

/* ===== More Modal ===== */
.modal-large {
  max-width: 520px;
  max-height: 85vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.modal-header h3 { font-size: 18px; }

.modal-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--border);
  padding-bottom: 12px;
}

.modal-tab {
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius-chip);
  background: var(--background);
  color: var(--on-surface-muted);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.modal-tab.active {
  background: var(--primary-light);
  color: var(--primary);
}

.modal-tab:hover { background: var(--primary-light); color: var(--primary); }

.tab-content { animation: fadeIn 0.2s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

.guide-item {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.guide-item:last-child { border-bottom: none; }

.guide-icon {
  font-size: 24px;
  flex-shrink: 0;
  width: 32px;
  text-align: center;
  margin-top: 2px;
}

.guide-item strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--on-surface);
  margin-bottom: 4px;
}

.guide-item p {
  font-size: 13px;
  color: var(--on-surface-muted);
  line-height: 1.5;
  margin: 0;
}

.feedback-intro {
  font-size: 14px;
  color: var(--on-surface-muted);
  margin-bottom: 16px !important;
}

.feedback-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feedback-form textarea {
  width: 100%;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: var(--on-surface);
  background: var(--background);
  resize: vertical;
  outline: none;
  transition: border-color var(--transition);
}

.feedback-form textarea:focus { border-color: var(--primary); }

/* ===== Responsive ===== */
@media (max-width: 500px) {
  .card-row { grid-template-columns: 1fr; }
  .app-header { border-radius: 0 0 20px 20px; padding: 24px 16px 20px; }
  .app-header h1 { font-size: 18px; }
}