:root {
  --bg: #f4f6f2;
  --card: #ffffff;
  --card-soft: #f8faf7;
  --text: #20281f;
  --muted: #6a756c;
  --line: #dde5de;
  --primary: #2f7a57;
  --primary-soft: #e7f3ec;
  --primary-soft-strong: #d7ecdf;
  --danger: #bd4545;
  --danger-soft: #fdeaea;
  --warning: #916400;
  --warning-soft: #fff5d8;
  --success: #225f3c;
  --success-soft: #e8f5ec;
  --shadow: 0 8px 26px rgba(28, 38, 30, 0.06);
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f7f9f5 0%, #f1f4ef 100%);
}

body {
  min-height: 100vh;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
  border: none;
}

input,
select {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  border-radius: 14px;
  padding: 0.9rem 1rem;
}

label span {
  display: block;
  margin-bottom: 0.45rem;
  font-weight: 700;
}

.app-shell {
  width: min(920px, 100%);
  margin: 0 auto;
  padding: 1rem 1rem 6rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.brand-block h1,
.hero-card h2,
.section-title-row h2,
.section-title-row h3,
.section-title-row h4 {
  margin: 0;
}

.brand-block h1 {
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  line-height: 1.1;
  max-width: 14ch;
}

.eyebrow {
  margin: 0 0 0.3rem;
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.topbar-copy,
.hero-copy,
.small-muted,
.validation-note,
.library-meta,
.step-label {
  margin: 0;
  color: var(--muted);
}

.topbar-copy {
  margin-top: 0.55rem;
  max-width: 56ch;
}

.main-content,
.tab-panel,
.stack,
.builder-shell,
.card-lite,
.food-groups {
  display: grid;
  gap: 1rem;
}

.tab-panel {
  display: none;
}

.tab-panel.active,
.library-panel.active {
  display: grid;
}

.card,
.card-lite {
  background: var(--card);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
}

.card-lite {
  background: var(--card-soft);
  border: 1px solid var(--line);
  box-shadow: none;
}

.hero-card {
  display: grid;
  gap: 1rem;
}

.mini-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.stat-card {
  padding: 0.95rem 1rem;
  background: var(--card-soft);
  border: 1px solid var(--line);
  border-radius: 16px;
  display: grid;
  gap: 0.2rem;
}

.stat-value {
  font-size: 1.35rem;
  font-weight: 800;
}

.stat-label {
  color: var(--muted);
  font-size: 0.92rem;
}

.quick-grid,
.segmented-grid,
.checkbox-grid,
.food-chip-grid {
  display: grid;
  gap: 0.75rem;
}

.quick-grid,
.segmented-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.quick-action,
.segmented-btn,
.primary-btn,
.ghost-btn,
.text-btn,
.nav-btn,
.switch-btn {
  border-radius: 16px;
  padding: 0.95rem 1rem;
}

.quick-action {
  text-align: left;
  background: var(--primary-soft);
  color: var(--text);
  border: 1px solid transparent;
  display: grid;
  gap: 0.28rem;
}

.quick-action strong,
.segmented-btn strong {
  font-size: 1rem;
}

.quick-action span,
.segmented-btn span {
  font-size: 0.9rem;
  color: var(--muted);
}

.quick-action:hover,
.segmented-btn:hover,
.selectable-chip:hover {
  border-color: #b8d7c4;
  background: var(--primary-soft-strong);
}

.segmented-btn {
  background: #fff;
  border: 1px solid var(--line);
  text-align: left;
}

.segmented-btn.active,
.switch-btn.active,
.nav-btn.active {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: #b8d7c4;
}

.section-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.95rem;
}

.section-title-row.compact {
  margin-bottom: 0.7rem;
}

.section-title-row.with-wrap,
.inline-actions,
.builder-actions,
.chips {
  flex-wrap: wrap;
}

.align-start {
  align-items: flex-start;
}

.form-grid {
  display: grid;
  gap: 0.9rem;
}

.compact-grid {
  align-items: end;
}

.step-panel,
.selected-area,
.validation-card,
.bordered-item,
.bordered-form,
.food-group {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 0.95rem;
  background: #fff;
}

.step-label {
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.validation-card {
  background: #fcfdfc;
}

.validation-card.success {
  background: var(--success-soft);
  border-color: #bedecc;
}

.validation-card.warning {
  background: var(--warning-soft);
  border-color: #ecdda7;
}

.validation-card.error {
  background: var(--danger-soft);
  border-color: #f2b8b8;
}

.group-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.8rem;
}

.group-head h4 {
  margin: 0;
  font-size: 1rem;
}

.food-chip-grid,
.checkbox-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.chips {
  display: flex;
  gap: 0.55rem;
}

.chip,
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.55rem 0.85rem;
  background: #eef2ee;
  color: var(--text);
  border: 1px solid transparent;
}

.badge {
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 700;
}

.selectable-chip {
  display: block;
  width: 100%;
  text-align: left;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0.9rem;
  transition: 0.18s ease;
}

.selectable-chip.active {
  background: var(--primary-soft);
  border-color: #a7cfb7;
}

.selectable-chip strong,
.selectable-chip span {
  display: block;
}

.selectable-chip strong {
  margin-bottom: 0.3rem;
}

.primary-btn {
  background: var(--primary);
  color: #fff;
  font-weight: 800;
}

.ghost-btn,
.switch-btn {
  background: #fff;
  border: 1px solid var(--line);
  color: var(--text);
}

.text-btn {
  background: transparent;
  color: var(--primary);
  padding: 0;
  font-weight: 800;
}

.inline-actions,
.builder-actions {
  display: flex;
  gap: 0.65rem;
}

.builder-actions {
  justify-content: flex-end;
}

.sticky-actions {
  position: sticky;
  bottom: 5.75rem;
  background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.94) 25%);
  padding-top: 0.5rem;
}

.small-search {
  max-width: 250px;
}

.library-item,
.meal-card {
  display: grid;
  gap: 0.75rem;
}

.library-item-title,
.meal-card-title {
  margin: 0;
  font-size: 1rem;
}

.status-pill {
  border-radius: 999px;
  padding: 0.35rem 0.72rem;
  font-size: 0.82rem;
  font-weight: 800;
  white-space: nowrap;
}

.status-pill.success {
  background: var(--success-soft);
  color: var(--success);
}

.status-pill.warning {
  background: var(--warning-soft);
  color: var(--warning);
}

.status-pill.error {
  background: var(--danger-soft);
  color: var(--danger);
}

.view-switch {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.library-panel {
  display: none;
  gap: 1rem;
}

.bottom-nav {
  position: fixed;
  left: 50%;
  bottom: 0.85rem;
  transform: translateX(-50%);
  width: min(920px, calc(100% - 1rem));
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(14px);
  padding: 0.7rem;
  border: 1px solid rgba(221, 229, 222, 0.95);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.nav-btn {
  background: transparent;
  color: var(--muted);
  font-weight: 800;
}

.helper-list {
  display: grid;
  gap: 0.42rem;
  margin: 0.85rem 0 0;
  padding-left: 1.15rem;
}

.helper-list li {
  color: var(--muted);
}

.hidden {
  display: none !important;
}

@media (min-width: 760px) {
  .hero-card {
    grid-template-columns: 1.2fr 0.9fr;
    align-items: start;
  }

  .hero-card .quick-grid {
    grid-column: 1 / -1;
  }

  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .food-chip-grid,
  .checkbox-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .app-shell {
    padding-inline: 0.85rem;
  }

  .topbar {
    flex-direction: column;
  }

  .quick-grid,
  .segmented-grid,
  .food-chip-grid,
  .checkbox-grid,
  .mini-stats {
    grid-template-columns: 1fr;
  }

  .small-search {
    max-width: 100%;
  }

  .sticky-actions {
    bottom: 5.5rem;
  }
}