:root {
  --background: #ffffff;
  --card: #fafafa;
  --text: #1d1d1f;
  --subtext: #86868b;
  --line: rgba(29, 29, 31, 0.1);
  --panel: rgba(250, 250, 250, 0.92);
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

body {
  min-height: 100vh;
  padding: 6px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", Pretendard, sans-serif;
}

button,
select { font: inherit; }

button { color: inherit; }

.window-widget {
  position: relative;
  width: min(100%, 390px);
  height: min(210px, calc(100vh - 12px));
  min-height: 170px;
  overflow: hidden;
  border-radius: 18px;
  background: var(--card);
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.055);
}

.viewer {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: linear-gradient(145deg, #f7f7f7, #eeeeef);
}

.slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  object-fit: cover;
  transform: scale(1.015);
  transition: opacity 0.8s ease, transform 6s ease;
  user-select: none;
  -webkit-user-drag: none;
}

.slide.visible {
  opacity: 1;
  transform: scale(1.045);
}

.topbar,
.caption-bar {
  position: absolute;
  z-index: 4;
  right: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #fff;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.24);
  pointer-events: none;
}

.topbar {
  top: 0;
  padding: 13px 14px 28px;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.28), transparent);
}

.brand {
  font-size: 11px;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.edit-button {
  padding: 3px 0;
  border: 0;
  background: transparent;
  color: inherit;
  font-size: 9px;
  opacity: 0;
  cursor: pointer;
  pointer-events: auto;
  transition: opacity 0.2s ease;
}

.viewer:hover .edit-button,
.edit-button:focus-visible { opacity: 0.9; }

.caption-bar {
  bottom: 0;
  padding: 36px 14px 13px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.36), transparent);
  font-size: 9px;
}

#counter {
  font-size: 8px;
  letter-spacing: 0.08em;
  opacity: 0.82;
}

.hit-area {
  position: absolute;
  z-index: 3;
  top: 42px;
  bottom: 35px;
  width: 50%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.previous { left: 0; }
.next-button { right: 0; }

.empty-state {
  position: absolute;
  z-index: 5;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  text-align: center;
  background: linear-gradient(145deg, #fafafa, #f1f1f2);
}

.empty-state strong {
  margin-top: 8px;
  font-size: 15px;
}

.empty-state p {
  margin: 6px 0 11px;
  color: var(--subtext);
  font-size: 9px;
}

.add-first,
.done-button,
.upload-button {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  cursor: pointer;
}

.add-first {
  padding: 7px 12px;
  font-size: 9px;
}

.pebble {
  position: relative;
  width: 45px;
  height: 35px;
  display: block;
  border: 1px solid rgba(29, 29, 31, 0.06);
  border-radius: 52% 48% 45% 47%;
  background: linear-gradient(145deg, #fff, #e6e6e8);
  box-shadow: inset 3px 3px 5px #fff, inset -3px -3px 5px rgba(0, 0, 0, 0.08), 0 6px 10px rgba(0, 0, 0, 0.08);
}

.pebble i {
  position: absolute;
  top: 15px;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #3a3a3c;
}

.pebble i:first-child { left: 15px; }
.pebble i:last-child { right: 15px; }

.editor {
  position: absolute;
  z-index: 10;
  inset: 0;
  padding: 14px;
  overflow-y: auto;
  background: var(--panel);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.editor-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 10px;
}

.editor-header div { display: flex; flex-direction: column; gap: 2px; }
.editor-header strong { font-size: 11px; }
.editor-header span { color: var(--subtext); font-size: 7px; }

.done-button {
  padding: 5px 9px;
  font-size: 8px;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 5px;
}

.photo-item {
  position: relative;
  min-width: 0;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 8px;
  background: #ececee;
}

.photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-controls {
  position: absolute;
  inset: auto 2px 2px;
  display: flex;
  justify-content: center;
  gap: 2px;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.photo-item:hover .photo-controls { opacity: 1; }

.photo-controls button {
  width: 15px;
  height: 15px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  font-size: 8px;
  line-height: 1;
  cursor: pointer;
}

.upload-button {
  width: fit-content;
  margin-top: 8px;
  padding: 5px 9px;
  display: block;
  font-size: 8px;
}

.upload-button input { display: none; }
.upload-button.disabled { opacity: 0.35; pointer-events: none; }

.editor-options {
  margin-top: 9px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
}

.editor-options label {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  color: var(--subtext);
  font-size: 7px;
}

.editor-options select {
  min-width: 0;
  padding: 3px 5px;
  border: 1px solid var(--line);
  border-radius: 7px;
  outline: none;
  background: #fff;
  color: var(--text);
  font-size: 7px;
}

.privacy-note {
  margin: 8px 0 0;
  color: var(--subtext);
  font-size: 6.5px;
}

.toast {
  position: absolute;
  z-index: 20;
  bottom: 10px;
  left: 50%;
  max-width: calc(100% - 20px);
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(29, 29, 31, 0.86);
  color: white;
  font-size: 8px;
  opacity: 0;
  transform: translate(-50%, 8px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 300px) {
  .window-widget { border-radius: 14px; }
  .photo-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  .slide { transition: opacity 0.2s linear; transform: none !important; }
}