/* ============================================
   SmakRównowagi – Mobile-first Styles
   ============================================ */

:root {
  --color-primary: #2D6A4F;
  --color-primary-dark: #1F4D38;
  --color-primary-light: #40916C;
  --color-bg: #F8FFF9;
  --color-card: #FFFFFF;
  --color-text: #1B1B1B;
  --color-text-secondary: #6C757D;
  --color-accent-bg: #D8F3DC;
  --color-border: #E8F5E9;
  --color-error: #D32F2F;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-pill: 50px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: 0.2s ease;
}

/* Reset & base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============ HEADER ============ */

.header {
  text-align: center;
  padding: 28px 20px 20px;
  background: var(--color-card);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.header-logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.5px;
}

.header-subtitle {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

/* ============ MAIN ============ */

.main {
  max-width: 640px;
  margin: 0 auto;
  padding: 20px 16px 40px;
}

.section {
  margin-bottom: 28px;
}

.section-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

/* ============ MEAL GRID ============ */

.meal-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (min-width: 600px) {
  .meal-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.meal-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 100px;
  padding: 16px 8px;
  background: var(--color-card);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
  -webkit-tap-highlight-color: transparent;
}

.meal-tile:hover {
  border-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.meal-tile:active {
  transform: translateY(0);
}

.meal-tile.active {
  border-color: var(--color-primary);
  background: var(--color-accent-bg);
  color: var(--color-primary);
}

.meal-tile.active .meal-icon {
  color: var(--color-primary);
}

.meal-icon {
  width: 40px;
  height: 40px;
  color: var(--color-text-secondary);
  transition: color var(--transition);
}

/* ============ PREFERENCES ============ */

.preferences {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pref-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pref-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.toggle-group {
  display: flex;
  background: var(--color-border);
  border-radius: var(--radius-pill);
  padding: 3px;
  gap: 0;
}

.toggle-btn {
  flex: 1;
  padding: 10px 16px;
  border: none;
  border-radius: var(--radius-pill);
  background: transparent;
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  -webkit-tap-highlight-color: transparent;
  min-height: 48px;
}

.toggle-btn.active {
  background: var(--color-card);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  font-weight: 600;
}

.toggle-btn:hover:not(.active) {
  color: var(--color-text);
}

/* ============ GENERATE BUTTON ============ */

.section-generate {
  text-align: center;
}

.btn-generate {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 360px;
  padding: 16px 32px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-btn);
  font-family: var(--font);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  -webkit-tap-highlight-color: transparent;
  min-height: 56px;
}

.btn-generate:hover:not(:disabled) {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(45, 106, 79, 0.3);
}

.btn-generate:active:not(:disabled) {
  transform: translateY(0);
}

.btn-generate:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ============ LOADING OVERLAY ============ */

.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(248, 255, 249, 0.95);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 100;
}

.loading-overlay.visible {
  opacity: 1;
  pointer-events: all;
}

.spinner {
  width: 56px;
  height: 56px;
  border: 4px solid var(--color-accent-bg);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-message {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-primary);
  text-align: center;
  animation: fadeMessage 0.4s ease;
}

@keyframes fadeMessage {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============ RECIPE CARD ============ */

.recipe-card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 28px;
  animation: slideUp 0.4s ease;
}

.recipe-card.hidden {
  display: none;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.recipe-header {
  padding: 24px 20px 16px;
  border-bottom: 1px solid var(--color-border);
}

.recipe-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  margin-bottom: 8px;
}

.recipe-description {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

.recipe-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: var(--color-accent-bg);
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-primary);
}

.recipe-section {
  padding: 16px 20px;
}

.recipe-section h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
}

.recipe-ingredients {
  list-style: none;
  padding: 0;
}

.recipe-ingredients li {
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
  font-size: 0.9rem;
  line-height: 1.5;
  border-bottom: 1px solid var(--color-border);
}

.recipe-ingredients li:last-child {
  border-bottom: none;
}

.recipe-ingredients li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent-bg);
  border: 2px solid var(--color-primary-light);
}

.recipe-steps {
  padding-left: 24px;
}

.recipe-steps li {
  padding: 6px 0;
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 4px;
}

.recipe-steps li::marker {
  color: var(--color-primary);
  font-weight: 700;
}

.recipe-tip {
  margin: 0 20px 16px;
  padding: 14px 16px;
  background: var(--color-accent-bg);
  border-radius: var(--radius-btn);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.recipe-tip.hidden {
  display: none;
}

.tip-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.recipe-tip p {
  font-size: 0.85rem;
  color: var(--color-primary-dark);
  line-height: 1.5;
}

.recipe-actions {
  padding: 16px 20px;
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: 10px;
}

.btn-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-btn);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition);
  -webkit-tap-highlight-color: transparent;
  min-height: 48px;
}

.btn-action:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary);
  background: var(--color-accent-bg);
}

/* ============ HISTORY ============ */

.history-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.history-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background: var(--color-card);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: all var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.history-item:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-sm);
}

.history-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.history-meta {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
}

.empty {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  text-align: center;
  padding: 20px 0;
}

/* ============ TOAST ============ */

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--color-text);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
  max-width: calc(100vw - 40px);
  text-align: center;
}

.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

/* ============ FOOTER ============ */

.footer {
  text-align: center;
  padding: 20px 16px 32px;
  font-size: 0.78rem;
  color: var(--color-text-secondary);
}

/* ============ RESPONSIVE ============ */

@media (min-width: 600px) {
  .main {
    padding: 32px 24px 48px;
  }

  .header-logo h1 {
    font-size: 1.75rem;
  }

  .recipe-name {
    font-size: 1.4rem;
  }

  .preferences {
    flex-direction: row;
    gap: 20px;
  }

  .pref-group {
    flex: 1;
  }
}

@media (min-width: 768px) {
  .main {
    max-width: 720px;
  }
}