:root {
  color-scheme: light;
  --bg: #f7f5ef;
  --ink: #1f2933;
  --muted: #667085;
  --line: #d9d4c7;
  --panel: #fffdf8;
  --accent: #2f6f5e;
  --accent-2: #b9473f;
  --accent-3: #d8a23a;
  --soft: #edf4f1;
  --shadow: 0 18px 45px rgba(31, 41, 51, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(255, 253, 248, 0.88), rgba(247, 245, 239, 0.95)),
    repeating-linear-gradient(90deg, rgba(47, 111, 94, 0.06) 0 1px, transparent 1px 36px);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Segoe UI", sans-serif;
}

button,
input {
  font: inherit;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px clamp(16px, 3vw, 36px);
  background: rgba(255, 253, 248, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

main {
  scroll-margin-top: 104px;
}

h1,
h2 {
  margin: 0;
  line-height: 1.15;
}

h1 {
  font-size: clamp(28px, 4vw, 44px);
}

h2 {
  font-size: 20px;
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

main {
  width: min(1180px, calc(100% - 24px));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 16px;
}

.tab,
.subtle-button,
.icon-button,
.primary-button {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
}

.tab {
  min-height: 48px;
  border-radius: 8px;
  font-weight: 700;
}

.tab.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.view {
  display: none;
}

.view.is-active {
  display: block;
}

.input-panel,
.result-panel,
.recipe-section {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.input-panel,
.result-panel {
  padding: 18px;
}

.recipe-section {
  padding: 18px;
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.note {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.quantity-grid {
  display: grid;
  gap: 10px;
  margin-bottom: 16px;
}

.quantity-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 116px;
  gap: 10px;
  align-items: center;
  min-height: 48px;
  padding: 8px 10px;
  background: #faf7ef;
  border: 1px solid #e6dfd0;
  border-radius: 8px;
}

.quantity-row label {
  font-weight: 700;
  line-height: 1.35;
}

.quantity-row input,
.recipe-row input {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 8px 10px;
  text-align: right;
}

.results {
  display: grid;
  min-width: 0;
  gap: 10px;
}

.result-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: baseline;
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.result-row strong {
  font-size: 18px;
}

.result-row span {
  font-size: 24px;
  font-weight: 800;
}

.result-block {
  min-width: 0;
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.result-block h3 {
  margin: 0 0 12px;
  font-size: 18px;
}

.result-lines,
.ingredient-lines {
  display: grid;
  gap: 7px;
  line-height: 1.6;
}

.result-lines {
  margin-bottom: 16px;
  font-weight: 700;
}

.ingredient-line {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  min-width: 0;
}

.ingredient-line span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.result-divider {
  margin: 14px 0 8px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  overflow: hidden;
  white-space: nowrap;
}

.block-total {
  font-weight: 800;
  line-height: 1.6;
}

.subtle-button,
.icon-button,
.primary-button {
  min-height: 38px;
  border-radius: 8px;
  padding: 8px 12px;
  font-weight: 700;
}

.primary-button {
  width: 100%;
  min-height: 52px;
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-size: 16px;
}

.icon-button {
  width: 44px;
  padding: 0;
  font-size: 22px;
}

.action-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 10px;
  margin-top: 16px;
}

.single-action {
  grid-template-columns: minmax(0, 1fr);
}

.action-row .primary-button,
.action-row .subtle-button {
  width: 100%;
}

.recipe-editor {
  display: grid;
  gap: 14px;
}

.recipe-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}

.recipe-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  background: #f1eee6;
}

.recipe-card-header strong {
  font-size: 16px;
}

.recipe-rows {
  display: grid;
  gap: 8px;
  padding: 12px;
}

.recipe-row {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) 112px 40px;
  gap: 8px;
  align-items: center;
}

.recipe-row span {
  color: var(--muted);
  font-size: 13px;
}

.empty-state {
  padding: 24px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  line-height: 1.7;
  background: #fffaf0;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  transform: translateY(16px);
  opacity: 0;
  pointer-events: none;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.is-visible {
  transform: translateY(0);
  opacity: 1;
}

@media (max-width: 820px) {
  .tabs {
    grid-template-columns: 1fr;
    padding-bottom: 8px;
  }

  .quantity-row {
    grid-template-columns: minmax(0, 1fr) 96px;
  }

  .result-panel,
  .input-panel,
  .recipe-section {
    padding: 14px;
  }

  .result-row {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 16px;
  }

  .result-row span {
    font-size: 28px;
  }

  .action-row {
    grid-template-columns: 1fr;
  }

  .recipe-row {
    grid-template-columns: minmax(90px, 1fr) 96px 34px;
  }
}