:root {
  --ink: #1C2B2A;
  --ink-soft: #4B5B59;
  --teal: #3A8A84;
  --teal-deep: #276A65;
  --bg: #F7F8F6;
  --surface: #FFFFFF;
  --line: #E1E5E2;
  --amber: #C97B2E;
  --danger: #B4453A;
  --radius-s: 10px;
  --radius-m: 16px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior-y: none;
}

button, input, textarea {
  font-family: inherit;
  color: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  padding: calc(var(--safe-top) + 14px) 20px 12px;
  background: var(--bg);
  display: flex;
  align-items: baseline;
  gap: 8px;
  border-bottom: 1px solid var(--line);
}
.brand { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; color: var(--ink); }
.brand-sub { font-size: 13px; color: var(--ink-soft); font-weight: 400; }

.view {
  padding: 16px 16px calc(96px + var(--safe-bottom));
  max-width: 520px;
  margin: 0 auto;
}

/* ---------- Capture ---------- */
.capture-card { margin-bottom: 20px; }

.frame {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-m);
  background: linear-gradient(180deg, #223634, #1C2B2A);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
}
.frame video, .frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.frame-hint {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: #C9D3D0;
  text-align: center;
  padding: 0 32px;
}
.frame-hint p { margin: 0; font-size: 14px; line-height: 1.4; }

.capture-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 18px;
}
.btn-shutter {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  border: 4px solid var(--ink);
  background: var(--surface);
  position: relative;
}
.btn-shutter::after {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: var(--teal);
}
.btn-shutter:active::after { background: var(--teal-deep); }

.refine { margin-bottom: 18px; }
.refine label { display: block; font-size: 13px; color: var(--ink-soft); margin-bottom: 6px; }
.refine-row { display: flex; gap: 8px; align-items: flex-start; }
.refine-row textarea {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: var(--surface);
  padding: 10px 12px;
  font-size: 15px;
  resize: none;
}
.btn-mic {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--surface);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-mic.listening {
  background: var(--teal);
  color: #fff;
  border-color: var(--teal);
}

.btn-primary {
  width: 100%;
  padding: 15px;
  border-radius: var(--radius-s);
  border: none;
  background: var(--teal);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
}
.btn-primary:disabled { background: #B7C4C1; color: #fff; }
.btn-secondary {
  padding: 12px 16px;
  border-radius: var(--radius-s);
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: 15px;
  text-align: center;
  display: inline-block;
}
.btn-ghost {
  padding: 12px 16px;
  border-radius: var(--radius-s);
  border: none;
  background: transparent;
  color: var(--ink-soft);
  font-size: 15px;
}
.full { width: 100%; margin-top: 10px; }
.error-text { color: var(--danger); font-size: 14px; margin-top: 10px; }

/* ---------- Result ---------- */
.totals { margin-bottom: 8px; }
.totals-photo {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: var(--radius-m);
  overflow: hidden;
  margin-bottom: 14px;
  background: var(--line);
}
.totals-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }

.totals-numbers {
  display: flex;
  align-items: baseline;
  gap: 24px;
  margin-bottom: 14px;
}
.total-value { font-size: 52px; font-weight: 700; letter-spacing: -0.02em; line-height: 1; }
.total-block.secondary .total-value { font-size: 28px; color: var(--ink-soft); font-weight: 600; }
.total-label { display: block; font-size: 13px; color: var(--ink-soft); margin-top: 2px; }

.totals-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin-bottom: 6px;
}
.totals-grid div {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  padding: 8px 4px;
  text-align: center;
}
.totals-grid span { display: block; font-size: 16px; font-weight: 700; }
.totals-grid small { display: block; font-size: 10px; color: var(--ink-soft); margin-top: 2px; }

.disclaimer {
  font-size: 12.5px;
  color: var(--amber);
  background: #FBF1E6;
  border-radius: var(--radius-s);
  padding: 10px 12px;
  margin: 12px 0 18px;
}

.dish-list { display: flex; flex-direction: column; gap: 10px; }
.dish-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 12px 12px 12px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.dish-main { flex: 1; min-width: 0; }
.dish-name {
  border: none;
  background: transparent;
  font-size: 15.5px;
  font-weight: 600;
  padding: 0;
  width: 100%;
}
.dish-weight-row { display: flex; align-items: center; gap: 4px; margin-top: 2px; }
.dish-weight {
  border: none;
  background: transparent;
  font-size: 13px;
  color: var(--ink-soft);
  width: 52px;
  padding: 0;
}
.dish-weight-row span { font-size: 13px; color: var(--ink-soft); }

.dish-figures { display: flex; gap: 10px; flex-shrink: 0; }
.dish-figures div { text-align: center; }
.dish-figures input {
  width: 40px;
  border: none;
  border-bottom: 1px solid var(--line);
  background: transparent;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  padding: 0 0 2px;
}
.dish-figures small { display: block; font-size: 9.5px; color: var(--ink-soft); margin-top: 2px; }
.dish-gi { font-size: 14px; font-weight: 600; }

.dish-remove {
  border: none;
  background: transparent;
  color: var(--ink-soft);
  flex-shrink: 0;
  padding: 4px;
}

.result-actions { margin-top: 20px; }

/* ---------- Diary ---------- */
.diary-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 14px;
}
.diary-nav button {
  border: none;
  background: var(--surface);
  border: 1px solid var(--line);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 18px;
}
.diary-total {
  text-align: center;
  margin-bottom: 20px;
}
#diaryDayXE { font-size: 40px; font-weight: 700; }
.diary-total small { display: block; color: var(--ink-soft); font-size: 13px; margin-top: 2px; }

.diary-entries { display: flex; flex-direction: column; gap: 10px; }
.diary-entry {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.diary-entry img { width: 46px; height: 46px; border-radius: 10px; object-fit: cover; flex-shrink: 0; }
.diary-entry-body { flex: 1; min-width: 0; }
.diary-entry-title { font-size: 14.5px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.diary-entry-meta { font-size: 12.5px; color: var(--ink-soft); margin-top: 2px; }
.diary-entry-xe { font-size: 18px; font-weight: 700; flex-shrink: 0; }
.diary-entry-time { font-size: 11px; color: var(--ink-soft); text-align: right; flex-shrink: 0; }

.empty-state { text-align: center; color: var(--ink-soft); font-size: 14px; margin-top: 40px; }

/* ---------- Settings ---------- */
.settings-group {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 16px;
  margin-bottom: 14px;
}
.settings-group h2 { font-size: 15px; margin: 0 0 10px; }
.settings-hint { font-size: 12.5px; color: var(--ink-soft); margin: 0 0 10px; line-height: 1.4; }
.settings-group label {
  display: block;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 10px;
}
.settings-group input[type=number],
.settings-group input[type=password] {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  font-size: 15px;
  background: var(--bg);
}
.segmented {
  display: flex;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  overflow: hidden;
}
.segmented button {
  flex: 1;
  border: none;
  background: var(--surface);
  padding: 10px 4px;
  font-size: 13px;
  border-right: 1px solid var(--line);
}
.segmented button:last-child { border-right: none; }
.segmented button.active { background: var(--teal); color: #fff; font-weight: 600; }

.settings-key-row { display: flex; gap: 8px; }
.settings-key-row button { flex: 1; }
.version-tag { text-align: center; font-size: 12px; color: var(--ink-soft); margin-top: 20px; }

/* ---------- PWA install banner & button ---------- */
[hidden],
.install-app-banner[hidden],
.ios-install-modal[hidden] {
  display: none !important;
}

.install-app-banner {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: calc(64px + var(--safe-bottom));
  z-index: 90;
  background: #182042;
  color: #fff;
  border-radius: 16px;
  padding: 12px 14px 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 10px 32px rgba(13, 22, 53, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.12);
  animation: bannerSlideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes bannerSlideUp {
  from { transform: translateY(16px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.install-app-content {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-right: 32px;
}

.install-app-icon {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  flex-shrink: 0;
}

.install-app-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.install-app-text strong {
  font-size: 14.5px;
  font-weight: 600;
  color: #FFFFFF;
}

.install-app-text span {
  font-size: 12px;
  color: #A9B7D0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.install-app-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.btn-install-app {
  flex: 1;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--teal);
  color: #ffffff;
  border: none;
  border-radius: 12px;
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(13, 124, 102, 0.35);
  transition: background 0.15s ease, transform 0.1s ease;
}

.btn-install-app:active {
  background: var(--teal-dark);
  transform: scale(0.98);
}

.btn-install-close {
  position: absolute;
  top: 8px;
  right: 8px;
  border: none;
  background: rgba(255, 255, 255, 0.18);
  color: #FFFFFF;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.15s, transform 0.1s;
}

.btn-install-close:active {
  background: rgba(255, 255, 255, 0.35);
  transform: scale(0.92);
}

/* ---------- iOS Install Guidance Modal ---------- */
.ios-install-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.ios-install-modal[hidden] {
  display: none;
}

.ios-install-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.ios-install-sheet {
  position: relative;
  background: #FFFFFF;
  border-radius: 24px 24px 0 0;
  padding: 14px 20px calc(20px + var(--safe-bottom));
  box-shadow: 0 -8px 36px rgba(0, 0, 0, 0.28);
  animation: sheetSlideUp 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 480px;
  margin: 0 auto;
  width: 100%;
}

@keyframes sheetSlideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.ios-install-handle {
  width: 40px;
  height: 4px;
  background: var(--line);
  border-radius: 2px;
  margin: 0 auto 14px;
}

.ios-install-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.ios-install-app-icon {
  width: 46px;
  height: 46px;
  border-radius: 11px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.ios-install-header h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 2px;
  color: var(--ink);
}

.ios-install-header p {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0;
}

.ios-install-steps {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ios-install-steps li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--ink);
}

.ios-install-steps .step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--teal);
  color: #fff;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.ios-inline-icon {
  vertical-align: -3px;
  color: var(--teal);
  display: inline-block;
}

/* ---------- Tab bar ---------- */
.tabbar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  display: flex;
  background: rgba(247,248,246,0.92);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--line);
  padding: 8px 8px calc(8px + var(--safe-bottom));
  z-index: 10;
}
.tab {
  flex: 1;
  border: none;
  background: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: var(--ink-soft);
  padding: 4px 0;
}
.tab span { font-size: 11px; }
.tab.active { color: var(--teal-deep); }

@media (prefers-reduced-motion: no-preference) {
  .view { animation: fade-in .15s ease-out; }
}
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }