:root {
  --stanford-cardinal: #8c1515;
  --ink: #171717;
  --muted: #6b625c;
  --paper: #fffdf8;
  --line: #e6ddd2;
  --cream: #f6efe5;
  --sage: #68725d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 10%, rgba(140, 21, 21, 0.10), transparent 28rem),
    linear-gradient(135deg, #fffdf8 0%, #f4eadf 100%);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px clamp(22px, 5vw, 64px);
}

.brand {
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  font-weight: 760;
  letter-spacing: 0;
}

.logo-strip {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(12px, 2vw, 22px);
}

.header-logo {
  max-height: clamp(32px, 5vw, 54px);
  max-width: clamp(72px, 13vw, 150px);
  width: auto;
  object-fit: contain;
}

.food-logo {
  max-width: clamp(92px, 15vw, 170px);
}

.main-shell {
  width: min(1240px, calc(100% - 36px));
  margin: 34px auto 110px;
}

.hero {
  text-align: center;
  padding: 28px 0 34px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--stanford-cardinal);
  font-size: 0.82rem;
  font-weight: 760;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-logo {
  display: block;
  width: min(430px, 72vw);
  height: auto;
  margin: 0 auto 22px;
  object-fit: contain;
}

h1 {
  max-width: 1180px;
  margin: 0 auto 32px;
  font-size: clamp(1.75rem, 3vw, 2.85rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.generate-button {
  appearance: none;
  border: 0;
  border-radius: 8px;
  padding: 22px 38px;
  font-size: 1.24rem;
  font-weight: 760;
  color: white;
  background: var(--stanford-cardinal);
  box-shadow: 0 14px 32px rgba(140, 21, 21, 0.24);
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.generate-button:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 18px 38px rgba(140, 21, 21, 0.28);
  background: #a51c30;
}

.generate-button:disabled {
  cursor: wait;
  opacity: 0.68;
}

.panel-generate-button {
  appearance: none;
  justify-self: end;
  border: 0;
  border-radius: 8px;
  padding: 12px 20px;
  color: white;
  background: var(--stanford-cardinal);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 10px 22px rgba(140, 21, 21, 0.18);
}

.panel-generate-button:hover:not(:disabled) {
  background: #a51c30;
}

.panel-generate-button:disabled {
  cursor: wait;
  opacity: 0.68;
}

.control-panel {
  width: min(560px, 100%);
  margin: 24px auto 0;
  display: grid;
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.72);
}

.tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.tab-button {
  appearance: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 12px;
  color: var(--muted);
  background: rgba(255, 247, 239, 0.72);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  cursor: pointer;
}

.tab-button.active {
  color: white;
  border-color: var(--stanford-cardinal);
  background: var(--stanford-cardinal);
}

.tab-panel {
  display: none;
  gap: 14px;
}

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

.slider-control,
.field-control {
  display: grid;
  grid-template-columns: 128px 1fr;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 700;
  text-align: left;
}

.slider-control input[type="range"] {
  accent-color: var(--stanford-cardinal);
  width: 100%;
}

.personalize-grid {
  display: grid;
  gap: 12px;
}

.gender-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.gender-toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.gender-toggle label {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--muted);
  background: #fff7ef;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  cursor: pointer;
}

.gender-toggle input:checked + label {
  color: white;
  border-color: var(--stanford-cardinal);
  background: var(--stanford-cardinal);
}

.field-control input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--ink);
  background: #fffdf8;
  font: inherit;
  font-weight: 650;
}

.field-control input:focus {
  outline: 2px solid rgba(140, 21, 21, 0.18);
  border-color: var(--stanford-cardinal);
}


.status {
  min-height: 24px;
  margin: 18px 0 0;
  color: var(--muted);
}

.recipe-card {
  margin: 18px auto 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.84);
  box-shadow: 0 20px 50px rgba(50, 40, 30, 0.10);
  overflow: hidden;
}

.hidden { display: none; }

.recipe-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 24px 28px;
  border-bottom: 1px solid var(--line);
}

.section-label {
  margin: 0 0 6px;
  color: var(--sage);
  font-size: 0.76rem;
  font-weight: 760;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

h2 {
  margin: 0;
  font-size: clamp(1.35rem, 3vw, 2rem);
  letter-spacing: 0;
}

.metric-box {
  flex: 0 0 auto;
  border-radius: 8px;
  min-width: 116px;
  padding: 10px 13px;
  color: var(--ink);
  background: #fff7ef;
  font-weight: 760;
}

.metric-strip {
  display: flex;
  align-items: stretch;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px;
}

.calorie-metric,
.progress-metric {
  display: grid;
  gap: 7px;
}

.metric-label {
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.metric-value {
  color: var(--stanford-cardinal);
  font-size: 0.95rem;
  line-height: 1;
}

.metric-track {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: #eadfd4;
}

.metric-fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: #b42318;
  transition: width 420ms ease, background 420ms ease;
}

.ingredient-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0;
}

.ingredient-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
}

.ingredient-row:nth-child(odd) {
  background: rgba(246, 239, 229, 0.55);
}

.ingredient-name {
  font-weight: 690;
  text-transform: capitalize;
}

.ingredient-grams {
  color: var(--muted);
  white-space: nowrap;
}

.nutrition-facts {
  width: min(360px, calc(100% - 36px));
  margin: 24px auto 28px;
  padding: 8px 10px 10px;
  color: #050505;
  background: #ffffff;
  border: 2px solid #050505;
  font-family: Arial, Helvetica, sans-serif;
  text-align: left;
}

.nutrition-title {
  padding-bottom: 2px;
  border-bottom: 1px solid #050505;
  font-size: 2.35rem;
  line-height: 0.92;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.nutrition-serving {
  padding: 5px 0;
  border-bottom: 9px solid #050505;
  font-size: 0.95rem;
  font-weight: 700;
}

.nutrition-calories {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 4px 0;
  border-bottom: 5px solid #050505;
}

.nutrition-calories span {
  font-size: 1.7rem;
  line-height: 1;
  font-weight: 900;
}

.nutrition-calories strong {
  font-size: 2.25rem;
  line-height: 0.95;
  font-weight: 900;
}

.nutrition-dv-header {
  padding: 3px 0 2px;
  border-bottom: 1px solid #050505;
  font-size: 0.8rem;
  font-weight: 900;
  text-align: right;
}

.nutrition-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 52px;
  gap: 8px;
  min-height: 24px;
  align-items: baseline;
  border-bottom: 1px solid #050505;
  font-size: 0.95rem;
  line-height: 1.15;
}

.nutrition-row.indent .nutrition-label {
  padding-left: 16px;
  font-weight: 400;
}

.nutrition-label {
  padding: 3px 0;
  font-weight: 900;
}

.nutrition-amount {
  font-weight: 400;
}

.nutrition-dv {
  padding: 3px 0;
  font-weight: 900;
  text-align: right;
}

.nutrition-row.micronutrient .nutrition-label,
.nutrition-row.micronutrient .nutrition-dv {
  font-weight: 400;
}

.nutrition-divider-thin {
  height: 0;
  border-top: 5px solid #050505;
}

.nutrition-note {
  margin: 7px 0 0;
  padding-left: 8px;
  font-size: 0.66rem;
  line-height: 1.15;
  color: #050505;
  text-indent: -6px;
}

.nutrition-note::before {
  content: "* ";
}

.status.is-loading {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.status-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(140, 21, 21, 0.2);
  border-top-color: var(--stanford-cardinal);
  border-radius: 50%;
  animation: spin 800ms linear infinite;
  flex: 0 0 auto;
}

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

.ai-disclaimer {
  position: fixed;
  left: 22px;
  bottom: 18px;
  max-width: min(430px, calc(100% - 44px));
  color: var(--muted);
  font-size: 0.78rem;
}

.footer-credit {
  position: fixed;
  right: 22px;
  bottom: 18px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
  max-width: min(460px, calc(100% - 44px));
  color: var(--muted);
  font-size: 0.78rem;
  text-align: right;
}

.footer-credit a {
  color: var(--stanford-cardinal);
  font-weight: 760;
}

@media (max-width: 640px) {
  .site-header { padding: 18px; gap: 18px; }
  .logo-strip { gap: 10px; }
  .header-logo { max-height: 34px; max-width: 86px; }
  .food-logo { max-width: 106px; }
  .main-shell { margin-top: 22px; margin-bottom: 120px; }
  .hero { padding-top: 32px; }
  .slider-control,
  .field-control { grid-template-columns: 1fr; gap: 8px; }
  .recipe-card-header { flex-direction: column; padding: 20px; }
  .metric-strip { justify-content: flex-start; width: 100%; }
  .metric-box { min-width: min(150px, 100%); }
  .ai-disclaimer { position: static; margin: 32px 18px 0; }
  .footer-credit { position: static; align-items: flex-start; margin: 12px 18px 18px; text-align: left; }
}