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

:root {
  --bg: #F5F3EE;
  --surface: #FFFFFF;
  --surface2: #F0EDE8;
  --border: #E5E2DB;
  --text: #1A1A1A;
  --text-muted: #8C8C8C;
  --accent: #DA7B3B;
  --accent-hover: #C06A2E;
  --danger: #D94040;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-size: 16px;
  line-height: 1.6;
}

.hidden { display: none !important; }

.screen {
  display: flex;
  flex-direction: column;
  height: 100dvh;
}

.container {
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.login-box {
  margin: auto;
  padding: 3rem 2rem;
  text-align: center;
  width: 100%;
  max-width: 360px;
}

.login-box h1 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
  color: var(--text);
}

.login-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.login-box input {
  width: 100%;
  padding: 0.85rem 1rem;
  font-size: 1.1rem;
  text-align: center;
  letter-spacing: 0.3em;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
  outline: none;
  margin-bottom: 1rem;
  transition: border-color 0.2s;
}

.login-box input:focus {
  border-color: var(--accent);
}

.login-box button {
  width: 100%;
  padding: 0.85rem;
  font-size: 1rem;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.2s;
}

.login-box button:hover { background: var(--accent-hover); }
.login-box button:active { background: var(--accent-hover); }

.error {
  color: var(--danger);
  font-size: 0.85rem;
  margin-top: 0.75rem;
}

.tabs {
  display: flex;
  gap: 0;
  padding: 0.75rem 1rem 0;
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
}

.tab {
  padding: 0.6rem 1.25rem;
  font-size: 0.9rem;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.tab.active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.tab:hover:not(.active) { color: var(--text); }

.tab-refresh-btn {
  margin-left: auto;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 38px;
  height: 38px;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
}

.tab-refresh-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(218, 123, 59, 0.08);
}

.tab-refresh-btn:active {
  transform: scale(0.92);
}

.tab-refresh-btn.spinning svg {
  animation: spin 0.6s ease;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.tab-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.tab-content.hidden { display: none !important; }

.inbox-feed {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.inbox-item {
  background: var(--surface);
  padding: 1rem 1.25rem;
  border-radius: 12px;
  font-size: 0.95rem;
  line-height: 1.6;
  border: 1px solid var(--border);
  animation: fadeIn 0.2s ease;
  word-break: break-word;
  overflow-wrap: break-word;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.inbox-item-content {
  flex: 1;
  min-width: 0;
}

.inbox-item-actions {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.inbox-item .inbox-img,
.overview-item .inbox-img {
  max-width: 120px;
  max-height: 80px;
  border-radius: 6px;
  display: inline-block;
  object-fit: cover;
  cursor: pointer;
  transition: all 0.2s ease;
  vertical-align: middle;
  border: 1px solid var(--border);
}

.inbox-item .inbox-img.expanded,
.overview-item .inbox-img.expanded {
  max-width: 100%;
  max-height: 400px;
  object-fit: contain;
  display: block;
  border: none;
}

.img-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  cursor: pointer;
  animation: fadeIn 0.15s ease;
}

.img-lightbox img {
  max-width: 92vw;
  max-height: 92vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

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

.inbox-item .timestamp {
  display: block;
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-top: 0.4rem;
  font-style: normal;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.inbox-item .copy-btn,
.inbox-item .delete-btn,
.inbox-item .context-btn {
  opacity: 0;
  transition: opacity 0.2s, color 0.2s;
}

.inbox-item:hover .copy-btn,
.inbox-item:hover .delete-btn,
.inbox-item:hover .context-btn {
  opacity: 1;
}

.delete-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.3rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.delete-btn:hover {
  color: var(--danger);
}

.context-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.3rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.context-btn:hover {
  color: var(--accent);
}

.inbox-contexts,
.overview-contexts {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.inbox-context {
  font-size: 0.82rem;
  color: var(--text-muted);
  padding-left: 0.75rem;
  border-left: 2px solid var(--border);
  margin-top: 0.35rem;
  line-height: 1.5;
}

.inbox-context .timestamp {
  display: inline;
  margin-top: 0;
  margin-left: 0.3rem;
}

.context-input-wrap {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.5rem;
  align-items: center;
}

.context-input-wrap input {
  flex: 1;
  padding: 0.4rem 0.6rem;
  font-size: 0.82rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface2);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
}

.context-input-wrap input:focus {
  border-color: var(--accent);
}

.ctx-attach-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.3rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: color 0.2s;
}

.ctx-attach-btn:hover { color: var(--accent); }
.ctx-attach-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.ctx-previews {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  width: 100%;
}

.ctx-preview-thumb {
  position: relative;
  display: inline-block;
}

.ctx-preview-thumb img {
  max-height: 60px;
  max-width: 100px;
  border-radius: 6px;
  object-fit: cover;
  display: block;
}

.ctx-preview-remove {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 18px;
  height: 18px;
  background: rgba(0,0,0,0.55);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.75rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ctx-preview-remove:hover { background: rgba(0,0,0,0.8); }

.context-send-btn {
  padding: 0.4rem 0.65rem;
  font-size: 0.78rem;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
  white-space: nowrap;
  transition: background 0.2s;
}

.context-send-btn:hover {
  background: var(--accent-hover);
}

.context-send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

@media (hover: none) {
  .inbox-item .copy-btn,
  .inbox-item .delete-btn,
  .inbox-item .context-btn {
    opacity: 0.4;
  }
  .copy-btn,
  .move-btn,
  .overview-item .context-btn {
    opacity: 0.4;
  }
}

.chat-input {
  padding: 0.75rem 1rem;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.composer {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.2s;
}

.composer:focus-within { border-color: var(--accent); }

.composer textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  border: none;
  background: transparent;
  color: var(--text);
  outline: none;
  resize: none;
  overflow-y: auto;
  overflow-x: hidden;
  min-height: 42px;
  max-height: 200px;
  font-family: inherit;
  line-height: 1.5;
  word-wrap: break-word;
  overflow-wrap: break-word;
  white-space: pre-wrap;
}

.composer textarea::placeholder { color: var(--text-muted); }

.composer-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.25rem 0.5rem 0.5rem;
}

.attach-btn {
  width: 36px;
  height: 36px;
  background: none;
  color: var(--text-muted);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: color 0.2s, background 0.2s;
}

.attach-btn:hover:not(:disabled) {
  color: var(--text);
  background: var(--surface2);
}

.attach-btn:disabled { opacity: 0.4; cursor: not-allowed; }

#inbox-send {
  width: 36px;
  height: 36px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.2s;
}

#inbox-send:hover:not(:disabled) { background: var(--accent-hover); }
#inbox-send:disabled { opacity: 0.4; cursor: not-allowed; }

.upload-preview {
  position: relative;
  display: inline-block;
  padding: 0.75rem 0.75rem 0;
}

.upload-preview img {
  max-height: 100px;
  max-width: 160px;
  border-radius: 8px;
  object-fit: cover;
  display: block;
}

.upload-preview .file-name {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--text);
  background: var(--surface2);
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  word-break: break-all;
}

.upload-preview .remove {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  width: 22px;
  height: 22px;
  background: rgba(0, 0, 0, 0.55);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.85rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.upload-preview .remove:hover { background: rgba(0, 0, 0, 0.8); }

.overview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem 0.25rem;
  gap: 0.5rem;
}

.sort-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.3rem 0.6rem;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.sort-btn:hover {
  color: var(--text);
  border-color: var(--text-muted);
}

.sort-btn.active {
  color: var(--accent);
  border-color: var(--accent);
}

.sort-btn svg {
  transition: transform 0.2s;
}

.sort-btn.asc svg {
  transform: rotate(180deg);
}

.category-tabs {
  display: flex;
  gap: 0.35rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  flex: 1;
}

.cat-tab {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 20px;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all 0.2s;
  font-weight: 500;
}

.cat-tab:hover:not(.active) {
  border-color: var(--text-muted);
  color: var(--text);
}

.cat-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.overview-content {
  flex: 1;
  overflow-y: auto;
  padding: 0.75rem 1rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.overview-card {
  background: var(--surface);
  border-radius: 16px;
  border: 1px solid var(--border);
  padding: 0.5rem 0;
}

.overview-card-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.75rem 1.25rem 0.5rem;
}

.overview-header-item {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text);
  padding: 0.75rem 1.25rem 0.25rem;
}

.overview-header-item.sub-header {
  padding-left: 2rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.overview-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.6rem 1.25rem;
  font-size: 0.9rem;
  line-height: 1.5;
}

.overview-item + .overview-item { border-top: 1px solid var(--border); }
.overview-header-item + .overview-item { border-top: none; }

.overview-item .circle {
  width: 20px;
  height: 20px;
  min-width: 20px;
  border: 2px solid var(--border);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 2px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0;
}

.overview-item .circle:hover {
  border-color: var(--accent);
}

.overview-item .circle.checking {
  border-color: var(--accent);
  opacity: 0.5;
}

.overview-item .circle.done {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
  font-size: 11px;
}

.overview-item.completed .item-main {
  text-decoration: line-through;
  color: var(--text-muted);
}

.overview-item .item-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  word-break: break-word;
  overflow-wrap: break-word;
}

.overview-item .item-date {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  letter-spacing: 0.01em;
}

.copy-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.3rem;
  border-radius: 6px;
  opacity: 0;
  transition: opacity 0.2s, color 0.2s;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: center;
}

.overview-item:hover .copy-btn,
.overview-item:hover .context-btn {
  opacity: 1;
}

.copy-btn:hover { color: var(--text); }
.copy-btn.copied { opacity: 1; color: var(--accent); }

.move-wrap {
  position: relative;
  flex-shrink: 0;
  align-self: center;
}

.move-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.3rem;
  border-radius: 6px;
  opacity: 0;
  transition: opacity 0.2s, color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.overview-item:hover .move-btn {
  opacity: 1;
}

.move-btn:hover {
  color: var(--accent);
}

.move-menu {
  position: absolute;
  right: 0;
  top: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  z-index: 50;
  min-width: 120px;
  overflow: hidden;
}

.move-option {
  display: block;
  width: 100%;
  padding: 0.5rem 0.85rem;
  font-size: 0.85rem;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  color: var(--text);
  transition: background 0.15s;
}

.move-option:hover {
  background: var(--surface2);
}

.move-option + .move-option {
  border-top: 1px solid var(--border);
}

.overview-item.sub-item { padding-left: 2.75rem; }

.overview-item.sub-item .circle {
  width: 16px;
  height: 16px;
  min-width: 16px;
  margin-top: 3px;
}

.tab-content.drag-over {
  outline: 2px dashed var(--accent);
  outline-offset: -4px;
  background: rgba(218, 123, 59, 0.04);
}

.loading {
  color: var(--text-muted);
  text-align: center;
  padding: 3rem;
  font-size: 0.9rem;
}

.empty {
  color: var(--text-muted);
  text-align: center;
  padding: 3rem;
  font-style: italic;
  font-size: 0.9rem;
}

.install-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: white;
  border-top: 1px solid #e5e5e5;
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  z-index: 100;
  font-size: 0.9rem;
  font-weight: 500;
  animation: slideUp 0.3s ease;
}

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

.install-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

#install-btn {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.install-banner .dismiss {
  background: none;
  border: none;
  color: #888;
  font-size: 1.25rem;
  cursor: pointer;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }