/* ================================================================
   Fridge Tracker
   Flat, typography-first, zero decoration.
   ================================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #ECEAE6;
  --surface:   #FFFFFF;
  --text:      #0D0D0D;
  --text-2:    #505050;
  --text-3:    #9A9894;
  --border:    #E2DFD9;
  --border-2:  #C9C6BF;

  --red:     #B83225;
  --orange:  #C75000;
  --yellow:  #7A6005;
  --green:   #1A7A40;

  --red-bg:    #FEF3F1;
  --orange-bg: #FEF6EF;
  --yellow-bg: #FEFBEE;
  --green-bg:  #F0FDF4;

  --s1:  4px;
  --s2:  8px;
  --s3:  12px;
  --s4:  16px;
  --s5:  20px;
  --s6:  24px;
  --s8:  32px;

  --r:     10px;
  --r-lg:  14px;

  --nav-h:    56px;
  --header-h: 62px;
}

html, body { height: 100%; }

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ================================================================
   HEADER
   ================================================================ */
header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 var(--s4);
  z-index: 100;
  box-shadow: 0 1px 0 var(--border), 0 2px 8px rgba(0,0,0,0.04);
}

.header-title {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.5px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.header-subtitle {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: 0.01em;
  display: flex;
  align-items: center;
  gap: 5px;
}
.header-subtitle::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--border-2);
  transition: background 0.3s;
}
.header-subtitle[data-status="urgent"]::before { background: var(--red); }
.header-subtitle[data-status="ok"]::before    { background: var(--green); }
.header-subtitle[data-status="urgent"] { color: var(--text-2); }

.header-count        { font-weight: 700; color: var(--red); }
.header-count--ok    { color: var(--green); }

.header-actions {
  display: flex;
  gap: var(--s1);
}

.icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-2);
  padding: var(--s2);
  border-radius: var(--r);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.1s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.icon-btn:active { background: var(--bg); transform: scale(0.9); }

.back-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-2);
  padding: 0 var(--s3) 0 0;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  transition: color 0.1s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.back-btn:active { color: var(--text); transform: translateX(-2px); }

/* ================================================================
   MAIN
   ================================================================ */
main {
  padding-top: var(--header-h);
  padding-bottom: calc(var(--nav-h) + var(--s4));
  min-height: 100%;
}

/* ================================================================
   BOTTOM NAV
   ================================================================ */
.bottom-nav {
  position: fixed;
  inset: auto 0 0 0;
  height: var(--nav-h);
  background: var(--surface);
  border-top: 1px solid var(--border);
  display: flex;
  z-index: 100;
}

.bottom-nav button {
  flex: 1;
  border: none;
  border-top: 2px solid transparent;
  background: none;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: var(--s2) 0 6px;
  transition: color 0.12s, border-color 0.12s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.bottom-nav button svg { width: 20px; height: 20px; }
.bottom-nav button.active {
  color: var(--text);
  font-weight: 700;
  border-top-color: var(--text);
}
.bottom-nav button:active { transform: scale(0.93); }

/* ================================================================
   SECTION
   ================================================================ */
.section {
  padding: var(--s4) var(--s4) var(--s3);
  animation: fadeUp 0.18s ease both;
}

.section-title {
  display: flex;
  align-items: center;
  gap: var(--s2);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
  margin-bottom: var(--s2);
}

.section-count {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-3);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 0 6px;
  line-height: 18px;
}

/* ================================================================
   URGENCY SUMMARY BAR
   ================================================================ */
.summary-bar {
  margin: var(--s3) var(--s4) 0;
  padding: 10px var(--s4);
  background: var(--red-bg);
  border: 1px solid rgba(184,50,37,0.18);
  border-radius: var(--r);
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.summary-bar.ok {
  background: var(--green-bg);
  border-color: rgba(26,122,64,0.18);
}

.summary-message {
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
}

.summary-sub {
  font-size: 11px;
  color: var(--text-3);
}

/* ================================================================
   ITEM CARD
   ================================================================ */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border-2);
  border-radius: var(--r);
  margin-bottom: 10px;
  overflow: hidden;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.04);
  -webkit-tap-highlight-color: transparent;
}
.card:active { transform: scale(0.99); box-shadow: 0 1px 2px rgba(0,0,0,0.04); }

.card.urgent-red    { border-left-color: var(--red);    background: var(--red-bg);    }
.card.urgent-orange { border-left-color: var(--orange); background: var(--orange-bg); }
.card.urgent-yellow { border-left-color: var(--yellow); background: var(--yellow-bg); }
.card.urgent-green  { border-left-color: var(--green);  }

/* Removing animation class added via JS */
.card.removing {
  opacity: 0;
  transform: translateX(6px) scale(0.99);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.card-body {
  padding: 14px var(--s4) 12px;
}

.card-row {
  display: flex;
  align-items: baseline;
  gap: var(--s2);
  margin-bottom: 3px;
}

.card-name {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.3px;
  flex: 1;
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
}

.food-icon {
  font-size: 17px;
  line-height: 1;
  flex-shrink: 0;
}

.card-name-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex-shrink: 1;
}

.card-days {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0;
  flex-shrink: 0;
}
.card-days.red    { color: var(--red);    }
.card-days.orange { color: var(--orange); }
.card-days.yellow { color: var(--yellow); }
.card-days.green  { color: var(--text-3); }

.card-expiry {
  font-size: 12px;
  font-weight: 500;
}
.card-expiry.red    { color: var(--red);    }
.card-expiry.orange { color: var(--orange); }
.card-expiry.yellow { color: var(--yellow); }
.card-expiry.green  { color: var(--text-3); }

.card-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
  line-height: 1.4;
}

.card-meta {
  font-size: 12px;
  color: var(--text-3);
}

/* Action row */
.card-actions {
  border-top: 1px solid var(--border);
  display: flex;
}

.card-btn {
  flex: 1;
  background: none;
  border: none;
  border-right: 1px solid var(--border);
  padding: 11px var(--s2);
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  letter-spacing: 0;
  cursor: pointer;
  transition: background 0.1s, color 0.12s, transform 0.08s;
  -webkit-tap-highlight-color: transparent;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card-btn:last-child { border-right: none; }
.card-btn:active { transform: scale(0.95); }

.card-btn-used   { color: var(--green); font-weight: 700; background: var(--green-bg); font-size: 13px; }
.card-btn-used:active { background: #d4f0de; }
.card-btn-edit   { color: var(--text-3); }
.card-btn-edit:active { background: var(--bg); color: var(--text); }
.card-btn-delete { color: var(--text-3); }
.card-btn-delete:active { background: var(--red-bg); color: var(--red); }

/* ================================================================
   SKELETON LOADING
   ================================================================ */
@keyframes shimmer {
  0%   { background-position: -400px 0; }
  100% { background-position:  400px 0; }
}

.skeleton-wrap {
  padding: var(--s5) var(--s4) 0;
}

.skeleton-label {
  width: 80px;
  height: 10px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--border) 25%, var(--bg) 50%, var(--border) 75%);
  background-size: 400px 100%;
  animation: shimmer 1.2s infinite linear;
  margin-bottom: var(--s3);
}

.skeleton-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: var(--s3) var(--s4);
  margin-bottom: var(--s2);
  display: flex;
  flex-direction: column;
  gap: var(--s2);
}

.skeleton-line {
  height: 10px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--border) 25%, var(--bg) 50%, var(--border) 75%);
  background-size: 400px 100%;
  animation: shimmer 1.2s infinite linear;
}
.skeleton-line.w-40  { width: 40%; }
.skeleton-line.w-60  { width: 60%; }
.skeleton-line.w-80  { width: 80%; }
.skeleton-line.w-100 { width: 100%; }

/* ================================================================
   EMPTY STATE
   ================================================================ */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px var(--s8) 40px;
  gap: var(--s3);
  text-align: center;
}

.empty-state svg {
  width: 40px;
  height: 40px;
  stroke: var(--text-3);
  fill: none;
  margin-bottom: var(--s2);
}

.empty-state p {
  font-size: 14px;
  color: var(--text-3);
  line-height: 1.7;
  margin-bottom: var(--s3);
}

.empty-cta {
  display: inline-block;
  padding: 10px var(--s5);
  background: var(--text);
  color: #fff;
  border: none;
  border-radius: var(--r-lg);
  font-size: 14px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.1s, opacity 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.empty-cta:active { transform: scale(0.97); opacity: 0.85; }

/* ================================================================
   ADD PAGE
   ================================================================ */
.page-content {
  padding: calc(var(--header-h) + var(--s4)) var(--s4) calc(var(--nav-h) + var(--s5));
  max-width: 480px;
  margin: 0 auto;
}

.form-group { margin-bottom: var(--s4); }

/* section break — subtle top rule */
.form-group--section {
  margin-top: var(--s4);
  padding-top: var(--s4);
  border-top: 1px solid var(--border);
}

.form-label {
  display: block;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
  margin-bottom: 6px;
}

.form-input,
.form-select {
  display: block;
  width: 100%;
  padding: 11px var(--s3);
  border: 1px solid var(--border-2);
  border-radius: var(--r);
  font-size: 15px;
  font-family: inherit;
  font-weight: 400;
  background: var(--surface);
  color: var(--text);
  outline: none;
  transition: border-color 0.15s;
  -webkit-appearance: none;
  appearance: none;
}
.form-input:focus,
.form-select:focus {
  border-color: var(--text);
}
.form-input::placeholder { color: var(--text-3); }

/* Custom select arrow */
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23999' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.input-row { display: flex; gap: var(--s3); }
.input-row .form-group { flex: 1; }

.form-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: var(--s4) 0 var(--s3);
}

/* Scan row */
.scan-row {
  display: flex;
  gap: var(--s2);
  align-items: stretch;
}
.scan-row .form-input { flex: 1; }

/* OCR strip */
.ocr-strip {
  display: flex;
  gap: var(--s2);
  align-items: stretch;
  margin-bottom: var(--s2);
}
.ocr-strip input[type="file"] { display: none; }

.ocr-label {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 11px var(--s3);
  border: 1px dashed var(--border-2);
  border-radius: var(--r);
  font-size: 13px;
  color: var(--text-3);
  cursor: pointer;
  transition: background 0.1s;
}
.ocr-label:active { background: var(--bg); }

.action-btn {
  padding: 11px var(--s4);
  background: none;
  color: var(--text);
  border: 1px solid var(--border-2);
  border-radius: var(--r);
  font-size: 13px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.1s, border-color 0.1s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
  letter-spacing: 0.01em;
}
.action-btn:active { background: var(--bg); transform: scale(0.96); }
.action-btn.secondary {
  background: none;
  color: var(--text-2);
  border: 1px solid var(--border-2);
}

/* Scanner viewport */
#reader-wrap {
  background: #111;
  border-radius: var(--r-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  max-height: 220px;
  position: relative;
  margin-top: var(--s2);
  display: none;
}
#reader { width: 100% !important; height: 100% !important; }
#reader video { object-fit: cover; width: 100% !important; height: 100% !important; }

.scanner-reticle {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.scanner-reticle::after {
  content: '';
  display: block;
  width: 180px;
  height: 72px;
  border: 2px solid rgba(255,255,255,0.55);
  border-radius: var(--r-lg);
}

.status-text {
  font-size: 12px;
  color: var(--text-3);
  text-align: center;
  margin-top: var(--s2);
  min-height: 0;
}
.status-text:empty { display: none; }

/* Product preview */
#product-preview {
  display: none;
  align-items: center;
  gap: var(--s3);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: var(--s3) var(--s4);
  margin-top: var(--s3);
}
#product-preview.visible { display: flex; }

#product-img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: var(--r);
  background: var(--surface);
  flex-shrink: 0;
}
#product-name-display  { font-size: 14px; font-weight: 600; }
#product-brand-display { font-size: 12px; color: var(--text-3); }

/* Primary button */
.btn-primary {
  display: block;
  width: 100%;
  padding: 13px;
  background: var(--text);
  color: #fff;
  border: none;
  border-radius: var(--r-lg);
  font-size: 15px;
  font-weight: 700;
  font-family: inherit;
  letter-spacing: -0.1px;
  cursor: pointer;
  margin-top: var(--s5);
  transition: transform 0.1s, opacity 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.btn-primary:disabled { opacity: 0.35; cursor: not-allowed; }
.btn-primary:active:not(:disabled) { transform: scale(0.98); opacity: 0.85; }

/* ================================================================
   TOAST
   ================================================================ */
#toast {
  position: fixed;
  bottom: calc(var(--nav-h) + var(--s5));
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--text);
  color: #fff;
  padding: 8px 16px;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  z-index: 999;
  transition: opacity 0.18s, transform 0.18s;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ================================================================
   ANIMATION
   ================================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ================================================================
   OCR CAMERA (expiry date scan)
   ================================================================ */
#ocr-reader-wrap {
  background: #111;
  border-radius: var(--r-lg);
  overflow: hidden;
  position: relative;
  margin-top: var(--s2);
  display: none;
}

#ocr-video {
  width: 100%;
  max-height: 220px;
  object-fit: cover;
  display: block;
}

.ocr-capture-row {
  position: absolute;
  bottom: 0;
  inset-inline: 0;
  padding: var(--s3) var(--s4);
  background: linear-gradient(transparent, rgba(0,0,0,0.65));
  display: flex;
  justify-content: center;
}

.ocr-capture-btn {
  background: #ffffff;
  color: #111;
  border: none;
  border-radius: 99px;
  padding: 9px 32px;
  font-size: 14px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.1s, opacity 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.ocr-capture-btn:active { transform: scale(0.94); opacity: 0.85; }

/* ================================================================
   HISTORY SECTION
   ================================================================ */
.history-section {
  padding: var(--s5) var(--s4) var(--s6);
  border-top: 1px solid var(--border);
  margin-top: var(--s4);
}

.history-card {
  opacity: 0.6;
}
.history-card .card-body {
  padding-bottom: var(--s3);
}

.history-clear-btn {
  display: block;
  width: 100%;
  padding: 9px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--r);
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  color: var(--text-3);
  cursor: pointer;
  margin-top: var(--s3);
  transition: background 0.1s, color 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.history-clear-btn:active { background: var(--red-bg); color: var(--red); }

/* ================================================================
   FILTER CHIPS
   ================================================================ */
.filter-chips {
  display: flex;
  gap: 6px;
  padding: 12px var(--s4);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  position: sticky;
  top: var(--header-h);
  z-index: 90;
  background: var(--bg);
  box-shadow: 0 1px 0 var(--border);
}
.filter-chips::-webkit-scrollbar { display: none; }

.chip {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border: 1px solid var(--border-2);
  border-radius: 99px;
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  color: var(--text-2);
  background: var(--surface);
  cursor: pointer;
  transition: background 0.12s, color 0.12s, border-color 0.12s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.chip:active { transform: scale(0.94); }
.chip.active {
  background: var(--text);
  color: #fff;
  border-color: var(--text);
}

/* Urgent chip — red tint when not active */
.chip--urgent {
  color: var(--red);
  border-color: rgba(184,50,37,0.3);
  background: var(--red-bg);
}
.chip--urgent .chip-badge {
  background: rgba(184,50,37,0.1);
  color: var(--red);
}
.chip--urgent.active {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
}
.chip--urgent.active .chip-badge {
  background: rgba(255,255,255,0.2);
  color: #fff;
}

.chip-badge {
  font-size: 10px;
  font-weight: 700;
  line-height: 15px;
  min-width: 15px;
  text-align: center;
  border-radius: 99px;
  padding: 0 4px;
  background: var(--bg);
  color: var(--text-3);
}
.chip.active .chip-badge {
  background: rgba(255,255,255,0.2);
  color: #fff;
}

/* ================================================================
   CARD META ROW (meta + qty pill)
   ================================================================ */
.card-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 16px;
}

.qty-pill {
  font-size: 10px;
  font-weight: 700;
  line-height: 16px;
  padding: 0 7px;
  border-radius: 99px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-3);
  flex-shrink: 0;
  margin-left: var(--s2);
}

/* ================================================================
   QTY STEPPER (add page)
   ================================================================ */
.qty-stepper {
  display: flex;
  align-items: center;
  border: 1px solid var(--border-2);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--surface);
  height: 46px;
}

.qty-btn {
  width: 46px;
  height: 46px;
  border: none;
  background: none;
  font-size: 22px;
  font-weight: 300;
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
  line-height: 1;
  transition: background 0.1s;
  -webkit-tap-highlight-color: transparent;
  flex-shrink: 0;
}
.qty-btn:active { background: var(--bg); }

.qty-display {
  flex: 1;
  text-align: center;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  line-height: 46px;
  -webkit-user-select: none;
  user-select: none;
}

/* ================================================================
   SECONDARY BUTTON (add page)
   ================================================================ */
.btn-secondary {
  display: block;
  width: 100%;
  padding: 13px;
  background: none;
  color: var(--text-2);
  border: 1px solid var(--border-2);
  border-radius: var(--r-lg);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  margin-top: var(--s3);
  text-align: center;
  transition: background 0.1s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.btn-secondary:active { background: var(--bg); transform: scale(0.98); }