:root {
  --green: #1e7d3c;
  --green-dark: #145a29;
  --green-light: #e8f5ec;
  --bg: #f6f8f7;
  --text: #1c2b22;
  --muted: #6b7d72;
  --danger: #c0392b;
  --warn: #b8860b;
  --card: #ffffff;
  --border: #dde6e0;
  font-family: "Poppins", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

.hidden { display: none !important; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--green-dark);
  color: white;
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar .brand { font-weight: 700; font-size: 1.2rem; cursor: pointer; }
.topnav { display: flex; gap: 18px; flex-wrap: wrap; }
.topnav a { color: white; text-decoration: none; font-size: 0.92rem; opacity: 0.9; }
.topnav a:hover { opacity: 1; text-decoration: underline; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
}
.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  border-radius: 2px;
  background: white;
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; padding: 12px 16px; }
  .nav-toggle { display: flex; }
  .topnav {
    flex-basis: 100%;
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height .25s ease;
  }
  .topnav.open { max-height: 320px; }
  .topnav a {
    padding: 12px 4px;
    font-size: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
  }
}

#app {
  max-width: 780px;
  margin: 0 auto;
  padding: 28px 20px 64px;
}

.screen { animation: fadein .15s ease-in; }
@keyframes fadein { from { opacity: 0; transform: translateY(4px);} to { opacity:1; transform:none;} }

.center { text-align: center; }

.app-title {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--green);
  margin-bottom: 4px;
}
.app-subtitle { color: var(--muted); margin-bottom: 32px; }

h1.screen-title { font-size: 1.5rem; margin-bottom: 4px; }
p.screen-hint { color: var(--muted); margin-top: 0; margin-bottom: 20px; }

.btn {
  display: inline-block;
  padding: 12px 20px;
  border-radius: 10px;
  border: none;
  background: var(--green);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--green-dark); }
.btn.secondary {
  background: white;
  color: var(--green);
  border: 2px solid var(--green);
}
.btn.secondary:hover { background: var(--green-light); }
.btn.danger { background: var(--danger); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-row { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.btn-row.center { justify-content: center; }
.btn-row.between { justify-content: space-between; }

.stack { display: flex; flex-direction: column; gap: 14px; }
.grid-choices {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
  margin: 20px 0;
}
.choice-btn {
  padding: 18px 10px;
  border-radius: 12px;
  border: 2px solid var(--border);
  background: var(--card);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
}
.choice-btn:hover { border-color: var(--green); }
.choice-btn.selected { border-color: var(--green); background: var(--green-light); color: var(--green-dark); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 16px;
  overflow-x: auto;
}

.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.92rem; }
.field .hint { color: var(--muted); font-size: 0.8rem; margin-top: 4px; }
input[type=text], input[type=number], input[type=password], input[type=email], select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 1rem;
}
input:focus, select:focus { outline: 2px solid var(--green); }

table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; }
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; }
tr.total-row td { font-weight: 700; border-top: 2px solid var(--text); }
td input[type=number] { width: 90px; padding: 6px 8px; }
td input.name { width: 100%; min-width: 180px; padding: 6px 8px; }

.ingredient-row { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.ingredient-row:last-child { border-bottom: none; }
.ingredient-row .meta { flex: 1; }
.ingredient-row .name { font-weight: 600; }
.ingredient-row .sub { color: var(--muted); font-size: 0.82rem; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 700; }
.badge.pass { background: #dff3e3; color: var(--green-dark); }
.badge.fail { background: #fbe4e1; color: var(--danger); }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px,1fr)); gap: 14px; margin: 16px 0; }
.stat-box { background: var(--green-light); border-radius: 12px; padding: 14px; text-align: center; }
.stat-box .value { font-size: 1.4rem; font-weight: 800; color: var(--green-dark); }
.stat-box .label { font-size: 0.78rem; color: var(--muted); text-transform: uppercase; }

.alert { border-radius: 12px; padding: 14px 16px; margin: 16px 0; }
.alert.warn { background: #fff6e0; border: 1px solid #f0d68a; color: #7a5a00; }
.alert.danger { background: #fbe4e1; border: 1px solid #eab3ac; color: var(--danger); }
.alert.ok { background: var(--green-light); border: 1px solid #b7dcc3; color: var(--green-dark); }
.alert ul { margin: 8px 0 0 18px; }

.progressbar { display: flex; gap: 6px; margin-bottom: 24px; }
.progressbar .step { flex: 1; height: 6px; border-radius: 4px; background: var(--border); }
.progressbar .step.done { background: var(--green); }

.empty-state { text-align: center; color: var(--muted); padding: 40px 10px; }
.recipe-card { cursor: pointer; }
.recipe-card:hover { border-color: var(--green); }

@media (max-width: 640px) {
  #app { padding: 20px 14px 56px; }
  .app-title { font-size: 1.9rem; }
  .app-subtitle { margin-bottom: 24px; }
  h1.screen-title { font-size: 1.3rem; }
  .card { padding: 16px; }
  table { font-size: 0.85rem; }
  th, td { padding: 7px 6px; }
  td input[type=number] { width: 74px; }
  td input.name { min-width: 140px; }
  .stat-box .value { font-size: 1.2rem; }
  .btn { padding: 11px 16px; }
  .btn-row.between { gap: 10px; }
}

@media (max-width: 380px) {
  #app { padding: 16px 10px 48px; }
  .grid-choices { grid-template-columns: 1fr 1fr; }
  td input[type=number] { width: 62px; }
  td input.name { min-width: 120px; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
}

@media print {
  .topbar, .btn-row, .no-print { display: none !important; }
}