/* アプリ全体の共通スタイル。画面別CSSはフェーズ2b以降もここへ集約する。 */
:root {
  color-scheme: light;
  --color-bg: #f7faf9;
  --color-surface: #ffffff;
  --color-surface-raised: #ffffff;
  --color-text: #17201c;
  --color-muted: #6b756f;
  --color-border: #dbe5df;
  --color-progress: #2563eb;
  --color-warning: #d97706;
  --color-warning-bg: #fff7e6;
  --color-danger: #dc2626;
  --color-danger-bg: #fff1f2;
  --color-success: #16a34a;
  --color-success-bg: #ecfdf3;
  --color-accent: #0f766e;
  --shadow-card: 0 8px 24px rgba(23, 32, 28, 0.08);
  --radius-card: 8px;
  --radius-control: 8px;
  --tabbar-height: 68px;
  --header-height: 56px;
  --page-padding: 16px;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --color-bg: #101412;
    --color-surface: #171d1a;
    --color-surface-raised: #1d2420;
    --color-text: #edf4ef;
    --color-muted: #a6b2ab;
    --color-border: #303b35;
    --color-progress: #60a5fa;
    --color-warning: #fbbf24;
    --color-warning-bg: #2d2412;
    --color-danger: #f87171;
    --color-danger-bg: #321719;
    --color-success: #4ade80;
    --color-success-bg: #132819;
    --color-accent: #5eead4;
    --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.3);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  width: 100%;
  min-width: 0;
  overflow-x: hidden;
  background: var(--color-bg);
}

body {
  width: 100%;
  min-width: 0;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  overflow-x: hidden;
  color: var(--color-text);
  background: var(--color-bg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0;
  -webkit-text-size-adjust: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
  letter-spacing: 0;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration: none;
}

.app-shell {
  min-height: 100vh;
  min-height: 100dvh;
  padding-bottom: calc(var(--tabbar-height) + env(safe-area-inset-bottom));
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 44px;
  align-items: center;
  min-height: calc(var(--header-height) + env(safe-area-inset-top));
  padding: env(safe-area-inset-top) var(--page-padding) 0;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.app-title {
  grid-column: 2;
  margin: 0;
  overflow: hidden;
  color: var(--color-text);
  font-size: 1.05rem;
  font-weight: 750;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.header-action {
  grid-column: 3;
  justify-self: end;
}

.view {
  width: 100%;
  max-width: 720px;
  min-width: 0;
  margin: 0 auto;
  padding: 16px var(--page-padding) 24px;
}

.stack {
  display: grid;
  gap: 12px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.card {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.card-title {
  margin: 0 0 8px;
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 750;
}

.muted {
  color: var(--color-muted);
}

.empty-state {
  display: grid;
  place-items: center;
  min-height: 220px;
  padding: 24px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  text-align: center;
}

.hero-number {
  margin: 0;
  color: var(--color-text);
  font-size: clamp(2.5rem, 12vw, 4rem);
  font-weight: 800;
  line-height: 1;
}

.number-large {
  font-size: clamp(1.75rem, 8vw, 2.8rem);
  font-weight: 800;
  line-height: 1.08;
}

.button,
.icon-button {
  display: inline-grid;
  place-items: center;
  min-width: 44px;
  min-height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  color: var(--color-text);
  background: var(--color-surface-raised);
  cursor: pointer;
}

.button {
  grid-auto-flow: column;
  gap: 8px;
  justify-content: center;
  padding: 0 14px;
  font-weight: 700;
}

.button-primary {
  border-color: var(--color-progress);
  color: #ffffff;
  background: var(--color-progress);
}

.button-success {
  border-color: var(--color-success);
  color: #ffffff;
  background: var(--color-success);
}

.button-danger {
  border-color: var(--color-danger);
  color: #ffffff;
  background: var(--color-danger);
}

.button-ghost {
  background: transparent;
}

.button:disabled,
.icon-button:disabled {
  opacity: 0.55;
  cursor: default;
}

.section-label {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9rem;
  font-weight: 800;
}

.field {
  display: grid;
  gap: 6px;
}

.field-label {
  color: var(--color-muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.input,
.select,
.textarea {
  width: 100%;
  min-height: 44px;
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  color: var(--color-text);
  background: var(--color-surface);
}

.input,
.select {
  padding: 0 12px;
}

.stepper {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 44px;
  gap: 6px;
  align-items: stretch;
}

/*
 * ステッパー入りの欄は、狭い画面では横に2つ並べない。
 * ⛔ この指定を消さないこと。iPhone(390px)で2カラムにすると
 *    入力欄の文字が見える幅が約32pxしか残らず、「67.5」がはみ出て読めない
 *    （2026-08-26 実害）。内訳: 390 −画面余白32 −カード余白32 ÷2 →158
 *    −ボタン44×2と隙間12 −内側余白26 = 32px。
 */
@media (max-width: 480px) {
  .grid-2-stepper {
    grid-template-columns: minmax(0, 1fr);
  }
}

.stepper-button {
  display: inline-grid;
  place-items: center;
  min-width: 44px;
  min-height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  color: var(--color-text);
  background: var(--color-surface-raised);
  font-size: 1.25rem;
  font-weight: 800;
  cursor: pointer;
}

.stepper-input {
  text-align: center;
  font-weight: 800;
}

.quick-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.quick-chip {
  max-width: 100%;
  overflow-wrap: anywhere;
}

.textarea {
  min-height: 92px;
  padding: 10px 12px;
  resize: vertical;
}

.segmented {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-surface);
}

.segment {
  min-height: 40px;
  border: 0;
  border-radius: 6px;
  color: var(--color-muted);
  background: transparent;
  font-weight: 700;
}

.segment.is-active {
  color: #ffffff;
  background: var(--color-progress);
}

.progress {
  width: 100%;
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-border) 75%, transparent);
}

.progress-bar {
  width: var(--value, 0%);
  height: 100%;
  border-radius: inherit;
  background: var(--color-progress);
}

.bar-list {
  display: grid;
  gap: 10px;
}

.bar-row {
  display: grid;
  grid-template-columns: minmax(64px, 0.6fr) minmax(0, 1.4fr) auto;
  gap: 8px;
  align-items: center;
}

.ring {
  --ring-size: 136px;
  --ring-value: 0%;
  width: var(--ring-size);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--color-surface) 57%, transparent 58%),
    conic-gradient(var(--color-progress) var(--ring-value), var(--color-border) 0);
}

.banner {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
}

.banner-warning {
  border-color: var(--color-warning);
  color: var(--color-text);
  background: var(--color-warning-bg);
}

.banner-danger {
  border-color: var(--color-danger);
  color: var(--color-text);
  background: var(--color-danger-bg);
}

.banner-success {
  border-color: var(--color-success);
  color: var(--color-text);
  background: var(--color-success-bg);
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 9px;
  border-radius: 999px;
  color: var(--color-muted);
  background: var(--color-surface-raised);
  font-size: 0.8rem;
  font-weight: 750;
}

.badge-progress {
  color: #ffffff;
  background: var(--color-progress);
}

.badge-warning {
  color: #1f1300;
  background: var(--color-warning);
}

.badge-danger {
  color: #ffffff;
  background: var(--color-danger);
}

.badge-success {
  color: #ffffff;
  background: var(--color-success);
}

.tabbar {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  min-height: calc(var(--tabbar-height) + env(safe-area-inset-bottom));
  padding: 4px 6px env(safe-area-inset-bottom);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.tab-item {
  display: grid;
  place-items: center;
  align-content: center;
  min-width: 0;
  min-height: 44px;
  border-radius: 8px;
  color: var(--color-muted);
  font-size: 0.74rem;
  font-weight: 750;
}

.tab-icon {
  font-size: 1.15rem;
  line-height: 1;
}

.tab-label {
  overflow: hidden;
  max-width: 100%;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tab-item.is-active {
  color: var(--color-progress);
  background: color-mix(in srgb, var(--color-progress) 12%, transparent);
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: end center;
  padding: 16px;
  background: rgba(0, 0, 0, 0.42);
}

.modal[hidden] {
  display: none;
}

.modal-panel {
  width: min(100%, 520px);
  max-height: min(86vh, 720px);
  overflow: auto;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 56px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
}

.modal-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 800;
}

.modal-body {
  padding: 16px;
}

.toast-root {
  position: fixed;
  right: 12px;
  bottom: calc(var(--tabbar-height) + env(safe-area-inset-bottom) + 12px);
  left: 12px;
  z-index: 100;
  display: grid;
  gap: 8px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 520px;
  margin: 0 auto;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  color: var(--color-text);
  background: var(--color-surface-raised);
  box-shadow: var(--shadow-card);
  pointer-events: auto;
}

.toast-action {
  flex: 0 0 auto;
  min-width: 44px;
  min-height: 36px;
  border: 1px solid var(--color-progress);
  border-radius: var(--radius-control);
  color: #ffffff;
  background: var(--color-progress);
  font-weight: 800;
  cursor: pointer;
}

.toast-success {
  border-color: var(--color-success);
}

.toast-warning {
  border-color: var(--color-warning);
}

.toast-danger {
  border-color: var(--color-danger);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

[hidden] {
  display: none !important;
}

@media (min-width: 560px) {
  :root {
    --page-padding: 20px;
  }

  .modal {
    place-items: center;
  }
}

/* テキスト入力の量変更・カロリー後付け用の小型入力欄（2026-08-24 追加） */
.input-small {
  display: inline-block;
  width: auto;
  min-width: 4.5em;
  padding: 6px 8px;
  margin-right: 6px;
}

/* 1人前ボタン（×0.5 / 茶碗1杯 / ×1.5 / ×2）2026-08-24 追加。
   利用者が「g」で量を判断できないため、日常語で量を選べるようにする。 */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}
.chip-row .button {
  flex: 0 0 auto;
  min-height: 44px;
  padding: 8px 12px;
  font-size: 13px;
}
.chip-row .button.is-active {
  border-color: var(--accent, #2563eb);
  font-weight: 700;
}