:root {
  --bg: #fef6ec;
  --bg-2: #fbe9d6;
  --card: #ffffff;
  --ink: #3d2f25;
  --ink-soft: #7a6a5d;
  --ink-faint: #a89685;
  --primary: #d9886b;
  --primary-dark: #b76a4f;
  --accent: #fab1a0;
  --success: #7bb98c;
  --danger: #e07a7a;
  --heart: #ec5e6b;
  --shadow: 0 4px 16px rgba(80, 50, 30, 0.08);
  --shadow-lg: 0 12px 40px rgba(80, 50, 30, 0.18);
  --radius: 16px;
}

* { box-sizing: border-box; }

/* `hidden` HTML attribute must always win over display:flex/grid/etc. */
[hidden] { display: none !important; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  background-image:
    /* tiny scattered paw prints */
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220' viewBox='0 0 220 220'%3E%3Cg fill='%23d9886b' fill-opacity='0.06'%3E%3Cpath d='M40 60c0-5 4-9 8-9s8 4 8 9-4 9-8 9-8-4-8-9zm22-8c0-4 3-7 7-7s7 3 7 7-3 7-7 7-7-3-7-7zM38 38c0-4 3-7 7-7s7 3 7 7-3 7-7 7-7-3-7-7zm-15 18c0-4 3-7 7-7s7 3 7 7-3 7-7 7-7-3-7-7zm21 17c0-7 6-13 13-13s13 6 13 13c0 5-3 9-7 11l-6 3-6-3c-4-2-7-6-7-11z'/%3E%3Cpath d='M165 165c0-5 4-9 8-9s8 4 8 9-4 9-8 9-8-4-8-9zm22-8c0-4 3-7 7-7s7 3 7 7-3 7-7 7-7-3-7-7zm-24-22c0-4 3-7 7-7s7 3 7 7-3 7-7 7-7-3-7-7zm-15 18c0-4 3-7 7-7s7 3 7 7-3 7-7 7-7-3-7-7zm21 17c0-7 6-13 13-13s13 6 13 13c0 5-3 9-7 11l-6 3-6-3c-4-2-7-6-7-11z'/%3E%3C/g%3E%3C/svg%3E"),
    radial-gradient(circle at 10% 10%, #ffe7d3 0, transparent 40%),
    radial-gradient(circle at 90% 0%, #ffd9c2 0, transparent 35%),
    radial-gradient(circle at 50% 100%, #fff1e0 0, transparent 50%);
  color: var(--ink);
  font-family: 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', system-ui, -apple-system, sans-serif;
  min-height: 100vh;
}

main { max-width: 1200px; margin: 0 auto; padding: 0 24px 80px; }

/* ===== Hero ===== */
.hero {
  text-align: center;
  padding: 48px 24px 24px;
  position: relative;
}
.hero h1 {
  margin: 0;
  font-family: 'Caveat', 'Noto Sans TC', cursive;
  font-size: clamp(2.6rem, 6vw, 4rem);
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--primary-dark);
  line-height: 1;
  text-shadow: 2px 3px 0 rgba(255, 255, 255, 0.6);
  display: inline-block;
  transform: rotate(-1.5deg);
}
.hero .subtitle {
  margin: 10px 0 0;
  color: var(--ink-soft);
  font-family: 'Caveat', 'Noto Sans TC', cursive;
  font-size: 1.4rem;
  letter-spacing: 1px;
  transform: rotate(0.5deg);
  display: inline-block;
}

/* Tiny corner shortcut into /disk — discoverable but doesn't compete with the title */
.hero-corner {
  position: absolute;
  top: 22px;
  right: 22px;
  font-size: 1.2rem;
  text-decoration: none;
  opacity: .55;
  padding: 6px 9px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid #f0dec8;
  box-shadow: var(--shadow);
  transition: opacity .15s, transform .15s;
}
.hero-corner:hover { opacity: 1; transform: rotate(-8deg) scale(1.1); }
@media (max-width: 500px) {
  .hero-corner { top: 14px; right: 14px; font-size: 1rem; padding: 5px 8px; }
}

/* ===== Uploader ===== */
.uploader { margin-bottom: 24px; }
.drop-zone {
  background: linear-gradient(180deg, #ffffff 0%, #fff5e9 100%);
  border: 3px dashed var(--primary);
  border-radius: var(--radius);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s, transform .2s, box-shadow .2s;
  box-shadow: var(--shadow);
}
.drop-zone:hover {
  border-color: var(--primary-dark);
  background: linear-gradient(180deg, #ffffff 0%, #ffeed9 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.drop-zone.dragover {
  border-style: solid;
  background: #ffe5cf;
  transform: scale(1.01);
}
.drop-icon { font-size: 3.4rem; margin-bottom: 10px; }
.drop-title { font-size: 1.3rem; font-weight: 700; color: var(--primary-dark); letter-spacing: .5px; }
.drop-hint { margin-top: 10px; color: var(--ink); font-size: 1rem; }
.drop-formats { margin-top: 14px; font-size: .8rem; color: var(--ink-faint); }

/* Floating upload button — always visible */
.fab-upload {
  position: fixed;
  right: 28px; bottom: 28px;
  height: 56px;
  padding: 0 22px 0 18px;
  border-radius: 999px;
  background: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(217, 136, 107, 0.45);
  z-index: 50;
  transition: transform .15s, background .15s, box-shadow .15s;
  display: inline-flex; align-items: center; gap: 8px;
  font: inherit;
}
.fab-upload .fab-plus { font-size: 1.6rem; font-weight: 300; line-height: 1; }
.fab-upload .fab-label { font-size: 1rem; font-weight: 600; letter-spacing: 1px; }
.fab-upload:hover {
  background: var(--primary-dark);
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 10px 28px rgba(217, 136, 107, 0.6);
}
@media (max-width: 500px) {
  .fab-upload {
    right: 16px; bottom: 16px;
    height: 52px; padding: 0 18px 0 14px;
  }
}

/* ===== Modal ===== */
.modal {
  position: fixed; inset: 0;
  background: rgba(60, 35, 20, 0.5);
  z-index: 90;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(4px);
  animation: fadein .18s ease;
  padding: 20px;
}
.modal-card {
  background: var(--card);
  border-radius: 20px;
  padding: 32px;
  width: min(520px, 100%);
  max-height: 90vh; overflow: auto;
  box-shadow: 0 24px 60px rgba(60, 35, 20, 0.35);
  position: relative;
  animation: modalin .22s ease;
}
@keyframes modalin {
  from { opacity: 0; transform: translateY(10px) scale(.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.modal-title {
  margin: 0 0 18px;
  font-size: 1.2rem;
  color: var(--primary-dark);
  text-align: center;
}
.modal-close {
  position: absolute;
  top: 14px; right: 14px;
  width: 34px; height: 34px;
  border-radius: 50%;
  border: none;
  background: rgba(0,0,0,0.05);
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 1rem;
  transition: background .15s, color .15s, transform .15s;
}
.modal-close:hover {
  background: var(--danger); color: white; transform: scale(1.1);
}

.link-btn {
  background: none; border: none; color: var(--primary-dark);
  font: inherit; font-weight: 600; cursor: pointer; padding: 0;
  text-decoration: underline; text-underline-offset: 3px;
}
.link-btn:hover { color: var(--primary); }

.upload-list {
  margin-top: 16px;
  background: rgba(217, 136, 107, 0.06);
  border-radius: 12px;
  padding: 12px 16px;
}
.upload-item {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 0; font-size: .9rem;
  border-bottom: 1px solid #f5e7d6;
}
.upload-item:last-child { border-bottom: none; }
.upload-item .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.upload-item .bar { width: 140px; height: 6px; background: #f3e3d1; border-radius: 3px; overflow: hidden; }
.upload-item .bar > span {
  display: block; height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  width: 0%; transition: width .15s;
}
.upload-item .status { width: 60px; text-align: right; color: var(--ink-soft); font-variant-numeric: tabular-nums; }
.upload-item.done .status { color: var(--success); }
.upload-item.fail .status { color: var(--danger); }

/* ===== Toolbar ===== */
.toolbar {
  display: flex; align-items: center; justify-content: space-between;
  margin: 28px 0 12px;
  flex-wrap: wrap; gap: 12px;
}
.counter { color: var(--ink-soft); font-size: .9rem; }
.counter span { font-weight: 700; color: var(--primary-dark); }

.search { flex: 1 1 240px; min-width: 200px; max-width: 320px; }
.search input {
  width: 100%;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid #f0dec8;
  background: var(--card);
  color: var(--ink);
  font: inherit;
  font-size: .9rem;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(217, 136, 107, 0.15);
}

.filter { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  background: var(--card);
  border: 1px solid #f0dec8;
  color: var(--ink-soft);
  padding: 6px 14px;
  border-radius: 999px;
  font: inherit; font-size: .85rem;
  cursor: pointer;
  transition: all .15s;
}
.chip:hover { border-color: var(--accent); color: var(--primary-dark); }
.chip.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.actions { display: flex; gap: 8px; }
.btn-ghost, .btn-danger {
  border-radius: 999px; padding: 6px 14px;
  font: inherit; font-size: .85rem;
  cursor: pointer; border: 1px solid #f0dec8;
  background: var(--card); color: var(--ink-soft);
  transition: all .15s;
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary-dark); }
.btn-danger {
  background: var(--danger); color: white; border-color: var(--danger);
}
.btn-danger:hover { background: #d06363; }

/* ===== Tag bar ===== */
.tag-bar {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin: 4px 0 16px;
}
.tag-bar .tag-chip {
  background: rgba(217, 136, 107, 0.12);
  color: var(--primary-dark);
  border: 1px solid transparent;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: .8rem; cursor: pointer;
  transition: all .15s;
}
.tag-bar .tag-chip:hover { background: rgba(217, 136, 107, 0.25); }
.tag-bar .tag-chip.active {
  background: var(--primary);
  color: white;
}

/* ===== Select mode ===== */
.select-bar {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--card);
  border: 1px solid #f0dec8;
  border-radius: var(--radius);
  padding: 10px 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.select-bar #select-count { font-weight: 600; color: var(--primary-dark); }
.select-actions { display: flex; gap: 8px; }
body.select-mode .item { cursor: pointer; }
body.select-mode .delete-btn { display: none; }

/* ===== Month section (scrapbook page-title style) ===== */
.month-header {
  flex: 0 0 100%;
  width: 100%;
  margin: 38px 0 18px;
  text-align: center;
  position: relative;
}
.month-header:first-child { margin-top: 6px; }
.month-header h2 {
  margin: 0;
  display: inline-flex;
  align-items: center; gap: 12px;
  padding: 6px 22px;
  background: linear-gradient(180deg, #fff 0%, #fff5e9 100%);
  border-radius: 999px;
  color: var(--primary-dark);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  box-shadow: 0 3px 12px rgba(80, 50, 30, 0.08);
  transform: rotate(-1deg);
}
.month-header h2::before { content: "🐾"; font-size: .95rem; }
.month-header h2::after  { content: "🐾"; font-size: .95rem; transform: scaleX(-1); display: inline-block; }
.month-header .count { color: var(--ink-faint); font-size: .85rem; font-weight: 400; letter-spacing: 0; }

/* ===== Gallery — scrapbook flex layout ===== */
.gallery {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
  gap: 30px 24px;
  padding: 8px 4px 40px;
}

.item.polaroid {
  --tilt: 0deg;
  flex: 0 0 auto;
  width: 240px;
  position: relative;
  background: #ffffff;
  padding: 10px 10px 6px;
  border-radius: 4px;
  box-shadow:
    0 1px 2px rgba(80, 50, 30, 0.1),
    0 6px 18px rgba(80, 50, 30, 0.12),
    inset 0 0 0 1px rgba(0,0,0,0.02);
  cursor: pointer;
  transform: rotate(var(--tilt));
  transition: transform .25s ease, box-shadow .25s ease;
  z-index: 1;
}
.item.polaroid:hover {
  transform: rotate(0deg) translateY(-6px) scale(1.02);
  box-shadow:
    0 4px 8px rgba(80, 50, 30, 0.12),
    0 16px 36px rgba(80, 50, 30, 0.22);
  z-index: 5;
}

/* Scrapbook-style size variation */
.item.polaroid.size-s { width: 190px; transform: rotate(var(--tilt)) scale(0.95); }
.item.polaroid.size-l { width: 300px; }
.item.polaroid.size-s:hover { transform: rotate(0deg) translateY(-6px) scale(1); }

/* On narrow screens, shrink everything proportionally */
@media (max-width: 760px) {
  .item.polaroid       { width: 44vw; max-width: 230px; }
  .item.polaroid.size-s { width: 36vw; max-width: 180px; }
  .item.polaroid.size-l { width: 44vw; max-width: 260px; }
  .gallery { gap: 22px 14px; }
}
@media (max-width: 440px) {
  .item.polaroid       { width: 80vw; max-width: 280px; }
  .item.polaroid.size-s { width: 70vw; max-width: 240px; }
  .item.polaroid.size-l { width: 86vw; max-width: 320px; }
}

.item.polaroid .photo-wrap {
  position: relative;
  overflow: hidden;
  border-radius: 2px;
  background: #f5e7d6;
}
.item.polaroid img {
  width: 100%; height: auto; display: block;
  background: #f5e7d6;
  transition: transform .4s ease;
}
.item.polaroid:hover img { transform: scale(1.03); }

/* Polaroid bottom strip — handwriting-style caption */
.item.polaroid .strip {
  padding: 10px 6px 4px;
  text-align: center;
  font-family: 'Caveat', 'Kalam', 'Noto Sans TC', cursive;
}
.item.polaroid .strip-date {
  font-size: .78rem;
  color: var(--ink-faint);
  letter-spacing: 1px;
  margin-bottom: 2px;
}
.item.polaroid .strip-caption {
  font-size: 1rem;
  color: var(--ink);
  font-style: italic;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.item.polaroid .strip-placeholder {
  color: var(--ink-faint);
  font-size: .85rem;
  font-style: normal;
  opacity: .7;
}

/* Washi tape decoration on top of polaroid */
.item-tape {
  position: absolute;
  top: -8px; left: 50%;
  width: 64px; height: 18px;
  transform: translateX(-50%) rotate(-3deg);
  border-radius: 1px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.08);
  pointer-events: none;
  z-index: 2;
  /* default — soft pink */
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,.25) 0 4px, transparent 4px 8px),
    linear-gradient(135deg, #ffd7c2, #ffbfa8);
  opacity: .85;
}
.item.polaroid[data-tape="1"] .item-tape {
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,.3) 0 5px, transparent 5px 10px),
    linear-gradient(135deg, #c8e6c9, #a5d6a7);
  transform: translateX(-60%) rotate(4deg);
}
.item.polaroid[data-tape="2"] .item-tape {
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,.4) 0 3px, transparent 3px 7px),
    linear-gradient(90deg, #b3e5fc, #81d4fa);
  width: 50px;
  transform: translateX(-45%) rotate(-7deg);
}
.item.polaroid[data-tape="3"] .item-tape {
  background:
    radial-gradient(circle at 30% 50%, rgba(255,255,255,.6) 2px, transparent 3px),
    radial-gradient(circle at 70% 50%, rgba(255,255,255,.6) 2px, transparent 3px),
    linear-gradient(135deg, #fff59d, #ffe082);
  width: 70px;
  transform: translateX(-55%) rotate(2deg);
}
.item.polaroid[data-tape="4"] .item-tape {
  background: linear-gradient(135deg, #e1bee7, #ce93d8);
  width: 56px; height: 16px;
  transform: translateX(-50%) rotate(-2deg);
}

/* Favorite gets a gold heart sticker on the corner */
.item.polaroid.is-favorite::after {
  content: "❤";
  position: absolute;
  top: -6px; right: -6px;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: white;
  color: var(--heart);
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 3px 10px rgba(236, 94, 107, 0.4);
  transform: rotate(12deg);
  z-index: 3;
  pointer-events: none;
}

/* Action buttons appear on hover */
.item.polaroid .delete-btn,
.item.polaroid .fav-btn {
  position: absolute;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,.95);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  pointer-events: auto;
  box-shadow: 0 2px 8px rgba(0,0,0,.15);
  opacity: 0;
  transition: opacity .2s, transform .15s, background .15s, color .15s;
  z-index: 4;
}
.item.polaroid .delete-btn { top: 14px; right: 14px; color: var(--danger); }
.item.polaroid .fav-btn    { top: 14px; left: 14px;  color: var(--ink-soft); }
.item.polaroid:hover .delete-btn,
.item.polaroid:hover .fav-btn { opacity: 1; }
.item.polaroid.is-favorite .fav-btn { opacity: 1; color: var(--heart); }
.item.polaroid .delete-btn:hover { transform: scale(1.15); background: var(--danger); color: white; }
.item.polaroid .fav-btn:hover    { transform: scale(1.15); }

.video-badge {
  position: absolute;
  bottom: 8px; right: 8px;
  background: rgba(40,25,15,.78);
  color: white;
  font-size: 1rem;
  width: 32px; height: 32px;
  padding: 0;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(4px);
}

.item-tags {
  position: absolute;
  bottom: 70px; left: 12px; right: 12px;
  display: flex; flex-wrap: wrap; gap: 4px;
  justify-content: center;
  pointer-events: none;
  z-index: 2;
}
.item-tags .tag {
  background: rgba(255,255,255,.92);
  color: var(--primary-dark);
  font-size: .7rem;
  padding: 2px 10px;
  border-radius: 999px;
  box-shadow: 0 1px 3px rgba(0,0,0,.1);
  font-weight: 600;
}

/* select-mode appearance */
body.select-mode .item.selected {
  outline: 3px solid var(--primary);
  outline-offset: -3px;
}
body.select-mode .item::before {
  content: "";
  position: absolute;
  top: 10px; right: 10px;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: rgba(255,255,255,.95);
  border: 2px solid var(--ink-faint);
  z-index: 2;
  transition: background .15s, border-color .15s;
}
body.select-mode .item.selected::before {
  background: var(--primary);
  border-color: var(--primary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='white' d='M6.4 11.6 3 8.2l1-1 2.4 2.4 5.6-5.6 1 1z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: center;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--ink-soft);
}
.empty-emoji { font-size: 4rem; opacity: .6; }
.empty-text { margin-top: 12px; }

/* ===== Lightbox ===== */
.lightbox {
  position: fixed; inset: 0;
  background: rgba(20, 10, 5, .94);
  z-index: 100;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  animation: fadein .2s ease;
}
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }

.lb-content {
  max-width: 92vw;
  max-height: 70vh;
  display: flex; align-items: center; justify-content: center;
}
.lb-content img, .lb-content video {
  max-width: 92vw;
  max-height: 70vh;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
  background: black;
}

.lb-meta {
  margin-top: 14px;
  width: min(680px, 92vw);
  color: rgba(255,255,255,.95);
  text-align: center;
}
.lb-caption-area { margin-bottom: 8px; }
.lb-caption-text {
  font-size: 1rem;
  line-height: 1.5;
  color: rgba(255,255,255,.95);
  font-style: italic;
  cursor: text;
  padding: 6px 12px;
  border-radius: 8px;
  transition: background .15s;
  min-height: 1.5em;
  white-space: pre-wrap;
  word-break: break-word;
}
.lb-caption-text:hover { background: rgba(255,255,255,.07); }
.lb-caption-text.empty {
  color: rgba(255,255,255,.4);
  font-style: normal;
  font-size: .9rem;
}
.lb-caption-text.empty::before { content: "✏️  點此寫一句描述"; }
#lb-caption-edit {
  width: 100%;
  min-height: 70px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.2);
  color: white;
  padding: 10px 14px;
  border-radius: 10px;
  font: inherit;
  font-size: .95rem;
  outline: none;
  resize: vertical;
  text-align: left;
}
#lb-caption-edit::placeholder { color: rgba(255,255,255,.45); }
#lb-caption-edit:focus {
  border-color: var(--accent);
  background: rgba(255,255,255,.12);
}
.lb-date {
  font-size: .8rem;
  color: rgba(255,255,255,.55);
  margin-top: 10px;
  letter-spacing: .5px;
}

.lb-tags {
  display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px;
  align-items: center;
  justify-content: center;
}
.lb-tags .tag {
  background: rgba(217, 136, 107, 0.35);
  border: 1px solid transparent;
  color: white;
  padding: 3px 10px 3px 12px;
  border-radius: 999px;
  font-size: .8rem;
  display: inline-flex; align-items: center; gap: 4px;
}
.lb-tags .tag .x {
  cursor: pointer; opacity: .7;
  margin-left: 4px;
}
.lb-tags .tag .x:hover { opacity: 1; }
.lb-tags .add-tag {
  background: transparent;
  border: 1px dashed rgba(255,255,255,.3);
  color: rgba(255,255,255,.75);
  padding: 3px 10px;
  border-radius: 999px;
  font-size: .8rem;
  cursor: pointer;
}
.lb-tags .add-tag:hover { border-color: var(--accent); color: white; }
.lb-tags input.tag-input {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  color: white; padding: 3px 10px; border-radius: 999px;
  font: inherit; font-size: .8rem; outline: none; width: 110px;
}

.lb-prev, .lb-next, .lb-fav, .lb-slideshow, .lb-download, .lb-share {
  position: absolute;
  background: rgba(255,255,255,.12);
  border: none;
  color: white;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, transform .15s, color .15s;
  backdrop-filter: blur(8px);
  width: 44px; height: 44px;
  border-radius: 50%; font-size: 1.3rem;
}
.lb-prev:hover, .lb-next:hover,
.lb-fav:hover, .lb-slideshow:hover, .lb-download:hover, .lb-share:hover {
  background: rgba(255,255,255,.25); transform: scale(1.05);
}
.lb-download { top: 20px; left: 132px; font-size: 1.5rem; }
.lb-share    { top: 20px; left: 188px; font-size: 1.05rem; }
.lb-download.busy, .lb-share.busy {
  pointer-events: none;
  opacity: .6;
  animation: pulse 1.2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: .6; }
  50%      { opacity: 1; }
}

/* Make close button impossible to miss */
.lb-close {
  position: absolute;
  top: 20px; right: 20px;
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.3);
  color: white;
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 999px;
  display: flex; align-items: center; gap: 8px;
  backdrop-filter: blur(8px);
  transition: background .15s, transform .15s;
  z-index: 2;
}
.lb-close span:first-child { font-size: 1.3rem; line-height: 1; }
.lb-close-txt { font-size: .9rem; }
.lb-close:hover {
  background: var(--primary);
  border-color: var(--primary);
  transform: scale(1.05);
}
@media (max-width: 500px) {
  .lb-close-txt { display: none; }
  .lb-close { padding: 10px 14px; }
}
.lb-prev  { left: 20px; top: 50%; transform: translateY(-50%); font-size: 2rem; }
.lb-next  { right: 20px; top: 50%; transform: translateY(-50%); font-size: 2rem; }
.lb-prev:hover, .lb-next:hover { transform: translateY(-50%) scale(1.05); }
.lb-fav { top: 20px; left: 20px; }
.lb-fav.active { color: var(--heart); background: rgba(255,255,255,.25); }
.lb-slideshow { top: 20px; left: 76px; }
.lb-slideshow.playing { background: var(--primary); }

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: white;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: .9rem;
  z-index: 200;
  box-shadow: var(--shadow-lg);
  animation: toastin .25s ease;
}
.toast.error { background: var(--danger); }
.toast.ok { background: var(--success); }
@keyframes toastin {
  from { opacity: 0; transform: translate(-50%, 10px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}

/* ==========================================================
   Feature additions: processing overlay, caption save buttons,
   date editor, batch buttons
   ========================================================== */

/* Processing polaroid (video transcoding in background) */
.item.polaroid.is-processing { cursor: default; opacity: .85; }
.item.polaroid.is-processing .photo-wrap { filter: grayscale(.4) brightness(.95); }
.processing-overlay {
  position: absolute;
  inset: 10px 10px auto 10px;
  aspect-ratio: 1 / 1;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.72);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 10px;
  pointer-events: none;
  z-index: 3;
}
/* Processing spinner: three bouncing paw prints */
.processing-spin {
  display: flex;
  gap: 4px;
  font-size: 1.3rem;
  line-height: 1;
}
.processing-spin span {
  display: inline-block;
  animation: paw-bounce 0.9s ease-in-out infinite;
}
.processing-spin span:nth-child(2) { animation-delay: 0.15s; }
.processing-spin span:nth-child(3) { animation-delay: 0.30s; }
@keyframes paw-bounce {
  0%, 100% { transform: translateY(0)    scale(1);     opacity: .55; }
  50%      { transform: translateY(-8px) scale(1.15);  opacity: 1;   }
}
.processing-label {
  font-family: 'Caveat', 'Noto Sans TC', cursive;
  color: var(--primary-dark);
  font-size: 1rem;
  letter-spacing: 1px;
}

/* Lightbox caption explicit Save / Cancel */
.lb-caption-actions {
  display: flex; gap: 10px; margin-top: 10px;
  justify-content: flex-end;
}
.lb-btn-save, .lb-btn-cancel {
  font: inherit; font-size: .9rem;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.25);
  cursor: pointer;
  transition: background .15s, transform .15s;
}
.lb-btn-save {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  font-weight: 600;
}
.lb-btn-save:hover { background: var(--primary-dark); transform: translateY(-1px); }
.lb-btn-cancel {
  background: rgba(255,255,255,.08);
  color: rgba(255,255,255,.85);
}
.lb-btn-cancel:hover { background: rgba(255,255,255,.18); }

/* Editable captured_at — date text becomes a small link-like span */
.lb-date-text {
  cursor: pointer;
  border-bottom: 1px dashed rgba(255,255,255,.3);
  transition: color .15s, border-color .15s;
}
.lb-date-text:hover {
  color: white;
  border-bottom-color: rgba(255,255,255,.7);
}
#lb-date-edit {
  display: block;
  margin: 10px auto 0;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  color: white;
  font: inherit;
  font-size: .95rem;
  padding: 6px 10px;
  border-radius: 8px;
  color-scheme: dark;
  outline: none;
}
#lb-date-edit:focus { border-color: var(--accent); background: rgba(255,255,255,.18); }

/* Select-bar with more buttons — allow wrap */
.select-bar .select-actions { flex-wrap: wrap; gap: 8px; }
@media (max-width: 640px) {
  .select-bar .select-actions { flex: 1 1 100%; justify-content: flex-end; }
  .select-bar .select-actions button { flex: 0 0 auto; }
}

/* ==========================================================
   Cute touches — heart burst, dragover wiggle, sleepy empty
   state, slideshow entrance transitions
   ========================================================== */

/* Heart burst on favorite */
.heart-burst {
  position: fixed;
  font-size: 1.6rem;
  pointer-events: none;
  z-index: 300;
  transform: translate(-50%, -50%);
  animation: heart-pop 1.15s cubic-bezier(.18,.72,.34,1) forwards;
  text-shadow: 0 2px 6px rgba(0,0,0,.18);
  will-change: transform, opacity;
}
@keyframes heart-pop {
  0%   { opacity: 0; transform: translate(-50%, -50%) scale(.4)  rotate(0); }
  20%  { opacity: 1; transform: translate(-50%, -50%) scale(1.35) rotate(var(--rot, 0deg)); }
  100% { opacity: 0; transform: translate(calc(-50% + var(--dx, 0px)), calc(-50% + var(--dy, -90px))) scale(.85) rotate(var(--rot, 0deg)); }
}

/* Drop-zone gets playful when files are over it */
.drop-zone { position: relative; }
.drop-zone .drop-icon { transition: transform .2s ease; }
.drop-zone.dragover .drop-icon {
  animation: cat-wiggle .42s ease-in-out infinite alternate;
}
@keyframes cat-wiggle {
  from { transform: rotate(-9deg) scale(1.10); }
  to   { transform: rotate(9deg)  scale(1.20); }
}
.drop-zone.dragover::before,
.drop-zone.dragover::after {
  content: "🐾";
  position: absolute;
  font-size: 1.6rem;
  opacity: .85;
  pointer-events: none;
  animation: paw-step .9s ease-in-out infinite;
}
.drop-zone.dragover::before {
  top: 14px; left: 18px;
  transform-origin: center;
  --r: -25deg;
}
.drop-zone.dragover::after {
  bottom: 14px; right: 18px;
  --r: 25deg;
  animation-delay: .45s;
}
@keyframes paw-step {
  0%, 100% { opacity: .45; transform: translateY(0)    rotate(var(--r, 0deg)); }
  50%      { opacity: 1;   transform: translateY(-7px) rotate(var(--r, 0deg)); }
}

/* Empty state: sleeping cat + floating Zzz */
.empty-emoji {
  position: relative;
  display: inline-block;
  font-size: 4rem;
  animation: cat-breathe 3.4s ease-in-out infinite;
}
.empty-emoji::before,
.empty-emoji::after {
  position: absolute;
  font-family: 'Caveat', 'Noto Sans TC', cursive;
  color: var(--ink-faint);
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  animation: zfloat 3s ease-in-out infinite;
}
.empty-emoji::before {
  content: "z";
  font-size: 1.4rem;
  top: -6px; right: -20px;
}
.empty-emoji::after {
  content: "z";
  font-size: 2rem;
  top: -28px; right: -34px;
  animation-delay: 1.2s;
}
@keyframes cat-breathe {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.06); }
}
@keyframes zfloat {
  0%   { opacity: 0; transform: translate(0,  10px) scale(.5) rotate(-8deg); }
  25%  { opacity: 1; }
  100% { opacity: 0; transform: translate(30px, -30px) scale(1.3) rotate(15deg); }
}

/* Lightbox entrance transitions — randomly assigned per slide */
.lb-content > .enter-fade   { animation: enter-fade  .35s ease; }
.lb-content > .enter-right  { animation: enter-right .35s cubic-bezier(.2,.7,.3,1); }
.lb-content > .enter-left   { animation: enter-left  .35s cubic-bezier(.2,.7,.3,1); }
.lb-content > .enter-zoom   { animation: enter-zoom  .38s cubic-bezier(.2,.7,.3,1); }
.lb-content > .enter-up     { animation: enter-up    .35s cubic-bezier(.2,.7,.3,1); }
@keyframes enter-fade  { from { opacity: 0; } to { opacity: 1; } }
@keyframes enter-right { from { opacity: 0; transform: translateX(60px)  scale(.96); } to { opacity: 1; transform: none; } }
@keyframes enter-left  { from { opacity: 0; transform: translateX(-60px) scale(.96); } to { opacity: 1; transform: none; } }
@keyframes enter-zoom  { from { opacity: 0; transform: scale(.85); }                  to { opacity: 1; transform: none; } }
@keyframes enter-up    { from { opacity: 0; transform: translateY(40px); }            to { opacity: 1; transform: none; } }

/* Slideshow "stage" — subtle darker vignette while playing */
.lightbox.playing {
  background: radial-gradient(ellipse at 50% 50%, rgba(40,30,20,.92), rgba(10,5,2,.98));
}
.lb-slideshow.playing {
  box-shadow: 0 0 0 3px rgba(217,136,107,.4), 0 0 20px rgba(217,136,107,.3);
}

/* ==========================================================
   Responsive enhancements — iPad, phone, landscape, touch
   ========================================================== */

/* Respect iPhone safe areas (notch, home-indicator) */
body {
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}
.fab-upload {
  right: max(28px, env(safe-area-inset-right, 0px) + 12px);
  bottom: max(28px, env(safe-area-inset-bottom, 0px) + 12px);
}

/* ----- iPad portrait & smaller tablets ----- */
@media (max-width: 900px) {
  main { padding: 0 18px 90px; }
  .hero { padding: 36px 18px 18px; }
  .hero .subtitle { font-size: 1.25rem; }
  .toolbar { margin: 22px 0 10px; }
  .gallery { gap: 26px 18px; }
}

/* ----- Phone-sized ----- */
@media (max-width: 640px) {
  main { padding: 0 12px 110px; }

  /* Hero — tighter */
  .hero { padding: 22px 12px 6px; }
  .hero h1 { letter-spacing: 0; }
  .hero .subtitle { font-size: 1.1rem; margin-top: 6px; }

  /* Toolbar — stacked, search on top, counter centered below */
  .toolbar {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "search  search"
      "filter  actions"
      "counter counter";
    gap: 10px 8px;
    margin: 16px 0 10px;
  }
  .toolbar .search   { grid-area: search; max-width: none; }
  .toolbar .filter   { grid-area: filter; justify-content: flex-start; }
  .toolbar .actions  { grid-area: actions; justify-content: flex-end; }
  .toolbar .counter  { grid-area: counter; text-align: center; font-size: .82rem; }

  /* Tag bar — single-row horizontal scroll */
  .tag-bar {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    margin: 2px -12px 14px;
    padding: 2px 12px 6px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }
  .tag-bar::-webkit-scrollbar { height: 4px; }
  .tag-bar::-webkit-scrollbar-thumb { background: rgba(217,136,107,.3); border-radius: 4px; }
  .tag-bar .tag-chip { flex: 0 0 auto; }

  /* Select bar — allow wrap, keep buttons tappable */
  .select-bar { flex-wrap: wrap; gap: 10px; padding: 10px 12px; }
  .select-actions { flex: 1 1 100%; justify-content: flex-end; }

  /* Modal & drop-zone — compact */
  .modal { padding: 12px; }
  .modal-card { padding: 22px 18px; border-radius: 16px; }
  .modal-title { font-size: 1.1rem; }
  .drop-zone { padding: 32px 14px; }
  .drop-icon { font-size: 2.8rem; }
  .drop-title { font-size: 1.15rem; }
  .drop-formats { font-size: .72rem; }
  .upload-item { font-size: .82rem; gap: 8px; }
  .upload-item .bar { width: 80px; }
  .upload-item .status { width: 48px; font-size: .78rem; }

  /* Strip caption slightly larger so handwriting reads well */
  .item.polaroid .strip-caption { font-size: 1.05rem; }

  /* Chips/buttons — comfier tap area */
  .chip, .btn-ghost, .btn-danger { padding: 8px 14px; }
}

/* Even tighter — small phones */
@media (max-width: 380px) {
  main { padding: 0 10px 110px; }
  .hero { padding: 18px 10px 4px; }
  .hero .subtitle { font-size: 1rem; }
  .toolbar .filter { gap: 4px; }
  .chip { padding: 6px 11px; font-size: .8rem; }
  .fab-upload .fab-label { display: none; }
  .fab-upload { padding: 0; width: 56px; justify-content: center; }
  .fab-upload .fab-plus { font-size: 1.8rem; }
}

/* iOS Safari auto-zooms when input font-size < 16px. Avoid it. */
@media (max-width: 768px) {
  .search input,
  #lb-caption-edit,
  input.tag-input,
  .modal-card input,
  .modal-card textarea {
    font-size: 16px;
  }
}

/* ----- Touch devices: no hover state ----- */
@media (hover: none) {
  /* Hover-only action buttons must always be visible to be tappable */
  .item.polaroid .delete-btn,
  .item.polaroid .fav-btn {
    opacity: 1;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
  }
  /* Disable the sticky :hover translate/scale that lingers on tap */
  .item.polaroid:hover {
    transform: rotate(var(--tilt));
    box-shadow:
      0 1px 2px rgba(80, 50, 30, 0.1),
      0 6px 18px rgba(80, 50, 30, 0.12),
      inset 0 0 0 1px rgba(0, 0, 0, 0.02);
  }
  .item.polaroid:hover img { transform: none; }
  .item.polaroid.size-s:hover { transform: rotate(var(--tilt)) scale(0.95); }

  /* Drop-zone hover lift is also pointless on touch */
  .drop-zone:hover { transform: none; box-shadow: var(--shadow); }
}

/* ----- Lightbox — phone tweaks ----- */
@media (max-width: 640px) {
  .lb-content { max-width: 96vw; max-height: 55vh; }
  .lb-content img,
  .lb-content video { max-width: 96vw; max-height: 55vh; }

  .lb-prev, .lb-next {
    width: 40px; height: 40px;
    font-size: 1.6rem;
    background: rgba(255, 255, 255, 0.18);
  }
  .lb-prev { left: 8px; }
  .lb-next { right: 8px; }

  .lb-fav, .lb-slideshow {
    width: 40px; height: 40px; font-size: 1rem;
  }
  .lb-fav { top: max(14px, env(safe-area-inset-top, 0px) + 8px); left: 14px; }
  .lb-slideshow { top: max(14px, env(safe-area-inset-top, 0px) + 8px); left: 64px; }
  .lb-download  { top: max(14px, env(safe-area-inset-top, 0px) + 8px); left: 114px; width: 40px; height: 40px; font-size: 1.2rem; }
  .lb-share     { top: max(14px, env(safe-area-inset-top, 0px) + 8px); left: 164px; width: 40px; height: 40px; font-size: .95rem; }
  .lb-close {
    top: max(14px, env(safe-area-inset-top, 0px) + 8px);
    right: 14px;
    padding: 9px 14px;
  }

  .lb-meta {
    width: 94vw;
    margin-top: 12px;
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }
  .lb-caption-text { font-size: .95rem; padding: 6px 10px; }
  .lb-tags input.tag-input { width: 140px; }
  .lb-tags .tag, .lb-tags .add-tag { font-size: .82rem; }
}

/* ----- Landscape phone — reclaim vertical space ----- */
@media (max-height: 480px) and (orientation: landscape) {
  .hero { padding: 10px 14px 4px; }
  .hero h1 { font-size: 1.8rem; }
  .hero .subtitle { font-size: .95rem; margin-top: 2px; }
  main { padding-bottom: 70px; }

  /* Lightbox image stretches; meta becomes one compact row */
  .lb-content,
  .lb-content img,
  .lb-content video { max-height: 78vh; }
  .lb-meta { margin-top: 6px; }
  .lb-date { margin-top: 4px; font-size: .72rem; }
  .lb-tags { margin-top: 6px; }
}

/* ----- Toast stays clear of FAB on mobile ----- */
@media (max-width: 500px) {
  .toast {
    bottom: max(86px, env(safe-area-inset-bottom, 0px) + 80px);
    font-size: .85rem;
    padding: 10px 18px;
  }
}