/* ═══════════════════════════════════════════════════
   Notion-style Bookmark Manager — Design System v3
   ═══════════════════════════════════════════════════ */

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f7f7f7;
  --bg-hover: #f0f0f0;
  --bg-active: #e8e8e8;
  --border: #e3e3e3;
  --border-light: #ebebeb;
  --text-primary: #37352f;
  --text-secondary: #6b6b6b;
  --text-muted: #9b9b9b;
  --accent: #000000;
  --danger: #c4392d;
  --overlay: rgba(0, 0, 0, 0.4);
  --radius: 8px;
  --radius-sm: 4px;
  --content-max: 1200px;
  --content-pad: 24px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --grid-cols: 5;
  --list-cols: 3;
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { font-family: var(--font); color: var(--text-primary); background: var(--bg-primary); line-height: 1.5; min-height: 100vh; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; font-size: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; color: var(--text-primary); }
a { color: inherit; text-decoration: none; }

/* ─── Layout ─── */
.page { min-height: 100vh; display: flex; flex-direction: column; }
.page-content {
  max-width: var(--content-max);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--content-pad) 80px;
}
@media (min-width: 1248px) {
  .page-content { padding-left: 0; padding-right: 0; }
}

/* ─── Banner ─── */
.banner { position: relative; background: var(--bg-secondary); overflow: hidden; }
.banner-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.banner-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.4) 0%, transparent 60%); pointer-events: none; }
.banner-content {
  position: absolute; bottom: 0; left: 0; right: 0;
  max-width: var(--content-max);
  width: 100%;
  margin: 0 auto;
  padding: 32px var(--content-pad);
}
@media (min-width: 1248px) {
  .banner-content { padding-left: 0; padding-right: 0; left: 50%; transform: translateX(-50%); }
}
.banner-title { font-size: 36px; font-weight: 700; color: #ffffff; letter-spacing: -0.02em; line-height: 1.2; }
.banner-subtitle { font-size: 14px; color: rgba(255,255,255,0.8); margin-top: 4px; }
.banner-no-image .banner-overlay { display: none; }
.banner-no-image .banner-title { color: var(--text-primary); }
.banner-no-image .banner-subtitle { color: var(--text-secondary); }
.banner-edit-btn {
  position: absolute; top: 12px; right: 12px;
  width: 32px; height: 32px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.9); color: var(--text-secondary);
  opacity: 0; transition: opacity 0.2s ease;
}
.banner:hover .banner-edit-btn { opacity: 1; }
.banner-edit-btn:hover { background: #ffffff; color: var(--text-primary); }

/* ─── Quick Access ─── */
.quick-access {
  max-width: var(--content-max);
  width: 100%;
  margin: 24px auto 0;
  padding: 0 var(--content-pad);
}
@media (min-width: 1248px) {
  .quick-access { padding-left: 0; padding-right: 0; }
}
.quick-access-inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}
.quick-access-inner::-webkit-scrollbar { display: none; }
.quick-access-item {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 12px 10px; border-radius: var(--radius);
  min-width: 72px; max-width: 80px;
  transition: background 0.2s ease; cursor: pointer; text-align: center;
}
.quick-access-item:hover { background: var(--bg-hover); }
.quick-access-favicon {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--bg-secondary); border: 1px solid var(--border-light);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; flex-shrink: 0;
}
.quick-access-favicon img { width: 22px; height: 22px; object-fit: contain; }
.quick-access-favicon .card-favicon-letter { font-size: 14px; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; }
.quick-access-name {
  font-size: 11px; color: var(--text-secondary); line-height: 1.3;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; width: 100%;
}

/* ─── Web Search Bar ─── */
.web-search {
  max-width: var(--content-max);
  width: 100%;
  margin: 16px auto 0;
  padding: 0 var(--content-pad);
}
@media (min-width: 1248px) {
  .web-search { padding-left: 0; padding-right: 0; }
}
.web-search-inner {
  display: flex; align-items: center;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg-primary);
  transition: border-color 0.2s ease;
  position: relative;
}
.web-search-inner:focus-within { border-color: var(--text-secondary); }
.web-search-engine-wrap { position: relative; flex-shrink: 0; }
.web-search-engine {
  display: flex; align-items: center; gap: 4px;
  padding: 0 12px; height: 40px;
  border-right: 1px solid var(--border);
  color: var(--text-secondary); font-size: 13px; font-weight: 500;
  cursor: pointer; white-space: nowrap; user-select: none;
  transition: background 0.2s ease;
}
.web-search-engine:hover { background: var(--bg-hover); }
.web-search-engine svg { flex-shrink: 0; }
.web-search-field {
  flex: 1; border: none; outline: none; padding: 0 14px;
  height: 40px; font-size: 14px; background: transparent; min-width: 0;
}
.web-search-field::placeholder { color: var(--text-muted); }
.web-search-go {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; color: var(--text-muted); flex-shrink: 0;
  transition: color 0.2s ease;
}
.web-search-go:hover { color: var(--text-primary); }
/* engine dropdown — positioned relative to .web-search-engine-wrap */
.engine-dropdown {
  position: absolute; top: 100%; left: 0; margin-top: 4px;
  background: var(--bg-primary); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 4px; min-width: 140px; z-index: 300;
  display: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.engine-dropdown.active { display: block; }
.engine-dropdown-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; border-radius: var(--radius-sm);
  font-size: 14px; cursor: pointer; transition: background 0.2s ease; width: 100%;
  text-align: left;
}
.engine-dropdown-item:hover { background: var(--bg-hover); }
.engine-dropdown-item.selected { font-weight: 600; }

/* ─── Topbar ─── */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  margin: 24px 0 24px; gap: 12px; flex-wrap: wrap;
}
.topbar-left { display: flex; align-items: center; gap: 8px; }
.topbar-right { display: flex; align-items: center; gap: 8px; }

/* ─── Bookmark Search ─── */
.search-wrapper { position: relative; display: flex; align-items: center; }
.search-input {
  background: transparent; border: none; border-bottom: 1px solid var(--border);
  padding: 6px 56px 6px 28px; font-size: 14px; width: 320px;
  color: var(--text-primary); transition: all 0.2s ease; outline: none;
}
.search-input::placeholder { color: var(--text-muted); }
.search-input:focus { width: 400px; border-bottom-color: var(--text-primary); }
.search-icon { position: absolute; left: 6px; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; }
.search-kbd {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  font-size: 11px; color: var(--text-muted); border: 1px solid var(--border);
  border-radius: 3px; padding: 1px 4px; pointer-events: none;
  white-space: nowrap;
}
.search-active .search-kbd { display: none; }

/* ─── Buttons ─── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; font-size: 14px; font-weight: 500;
  border-radius: var(--radius-sm); transition: background 0.2s ease;
  min-height: 32px; white-space: nowrap;
}
.btn:hover { background: var(--bg-hover); }
.btn-primary { background: var(--text-primary); color: #ffffff; }
.btn-primary:hover { background: #1a1a1a; }
.btn-ghost { color: var(--text-secondary); }
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-hover); }
.btn-danger { color: var(--danger); }
.btn-danger:hover { background: #fef2f1; }
.btn-icon {
  width: 32px; height: 32px; padding: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm); color: var(--text-secondary);
  transition: background 0.2s ease;
}
.btn-icon:hover { background: var(--bg-hover); color: var(--text-primary); }

/* Edit mode toggle */
.edit-mode-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; font-size: 13px; font-weight: 500;
  border-radius: var(--radius-sm); border: 1px solid var(--border);
  color: var(--text-secondary); transition: all 0.2s ease;
}
.edit-mode-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.edit-mode-btn.active { background: var(--text-primary); color: #fff; border-color: var(--text-primary); }
.edit-mode-btn.active:hover { background: #1a1a1a; }

/* ─── Layout Toggle ─── */
.layout-toggle { display: flex; border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.layout-toggle button {
  width: 32px; height: 28px; display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); transition: all 0.2s ease;
}
.layout-toggle button.active { background: var(--bg-secondary); color: var(--text-primary); }
.layout-toggle button:hover:not(.active) { background: var(--bg-hover); color: var(--text-secondary); }

/* ─── Category ─── */
.category { margin-bottom: 32px; }
.category-header {
  display: flex; align-items: center; padding: 4px 0; margin-bottom: 16px;
  gap: 8px; user-select: none;
}
.category-drag-handle {
  width: 20px; height: 20px; display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); cursor: grab; opacity: 0; transition: opacity 0.2s ease; flex-shrink: 0;
}
.category:hover .category-drag-handle, .category-header:hover .category-drag-handle { opacity: 1; }
.category-drag-handle:active { cursor: grabbing; }
.category-icon { width: 16px; height: 16px; color: var(--text-secondary); flex-shrink: 0; }
.category-name { font-size: 16px; font-weight: 600; color: var(--text-primary); letter-spacing: -0.01em; flex: 1; min-width: 0; }
.category-count { font-size: 12px; color: var(--text-muted); margin-left: 4px; }
.category-actions { display: flex; align-items: center; gap: 2px; opacity: 0; transition: opacity 0.2s ease; }
.category-header:hover .category-actions { opacity: 1; }
.collapse-btn {
  width: 24px; height: 24px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm); color: var(--text-muted); transition: all 0.2s ease;
}
.collapse-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.collapse-btn svg { transition: transform 0.2s ease; }
.collapse-btn.collapsed svg { transform: rotate(-90deg); }

/* ─── Grid Layout — configurable columns ─── */
.bookmarks-grid {
  display: grid;
  grid-template-columns: repeat(var(--grid-cols), 1fr);
  gap: 12px;
}

/* ─── Card ─── */
.card {
  position: relative; background: var(--bg-primary); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; transition: background 0.2s ease;
  cursor: pointer; display: flex; flex-direction: column; gap: 10px; min-height: 0;
}
.card:hover { background: var(--bg-secondary); }
.card-top { display: flex; align-items: flex-start; gap: 12px; }
.card-favicon {
  width: 40px; height: 40px; border-radius: 6px; background: var(--bg-secondary);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  overflow: hidden; border: 1px solid var(--border-light);
}
.card-favicon img { width: 24px; height: 24px; object-fit: contain; }
.card-favicon-letter { font-size: 16px; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; }
.card-info { flex: 1; min-width: 0; }
.card-title { font-size: 14px; font-weight: 500; color: var(--text-primary); line-height: 1.3; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card-desc { font-size: 12px; color: var(--text-secondary); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-top: 2px; }
.card-actions { position: absolute; top: 8px; right: 8px; display: flex; gap: 2px; opacity: 0; transition: opacity 0.2s ease; }
.card:hover .card-actions { opacity: 1; }
.card-drag-handle {
  width: 24px; height: 24px; display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); cursor: grab; border-radius: var(--radius-sm);
}
.card-drag-handle:hover { background: var(--bg-hover); }
.card-drag-handle:active { cursor: grabbing; }

/* ─── List Layout — configurable columns ─── */
.bookmarks-list {
  display: grid;
  grid-template-columns: repeat(var(--list-cols), 1fr);
  gap: 4px;
}
.card-list {
  position: relative; display: flex; align-items: center; gap: 12px;
  padding: 8px 12px; border-radius: var(--radius-sm);
  transition: background 0.2s ease; cursor: pointer; height: 48px;
}
.card-list:hover { background: var(--bg-hover); }
.card-list .card-favicon { width: 32px; height: 32px; }
.card-list .card-favicon img { width: 20px; height: 20px; }
.card-list .card-favicon-letter { font-size: 14px; }
.card-list .card-title { flex-shrink: 0; }
.card-list .card-desc { display: inline; -webkit-line-clamp: 1; white-space: nowrap; margin-top: 0; flex: 1; min-width: 0; }
.card-list .card-info { display: flex; align-items: center; gap: 12px; }
.card-list .card-actions { position: static; opacity: 0; flex-shrink: 0; }
.card-list:hover .card-actions { opacity: 1; }
.card-list .card-drag-handle { flex-shrink: 0; opacity: 0; transition: opacity 0.2s ease; }
.card-list:hover .card-drag-handle { opacity: 1; }

/* ─── Add bookmark inline ─── */
.add-bookmark-inline {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; color: var(--text-muted); font-size: 14px;
  border-radius: var(--radius-sm); transition: background 0.2s ease; cursor: pointer; margin-top: 8px;
}
.add-bookmark-inline:hover { background: var(--bg-hover); color: var(--text-secondary); }

/* ─── Empty State ─── */
.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 64px 24px; text-align: center; }
.empty-state svg { width: 48px; height: 48px; color: var(--text-muted); margin-bottom: 16px; }
.empty-state p { font-size: 14px; color: var(--text-secondary); margin-bottom: 12px; }
.empty-state a, .empty-state button { font-size: 14px; color: var(--text-primary); text-decoration: underline; text-underline-offset: 2px; }

/* ─── Modal ─── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.4);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; opacity: 0; visibility: hidden; transition: opacity 0.2s ease, visibility 0.2s ease;
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal {
  background: var(--bg-primary); border: 1px solid var(--border); border-radius: 2px;
  width: 100%; max-width: 480px; max-height: 90vh; overflow-y: auto; margin: 16px;
}
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.modal-title { font-size: 14px; font-weight: 600; }
.modal-body { padding: 20px; }
.modal-footer { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 20px; border-top: 1px solid var(--border); }

/* ─── Form ─── */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 12px; font-weight: 500; color: var(--text-secondary); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.04em; }
.form-input {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); font-size: 14px; background: var(--bg-primary);
  outline: none; transition: border-color 0.2s ease;
}
.form-input:focus { border-color: var(--text-primary); }
.form-input::placeholder { color: var(--text-muted); }
textarea.form-input { resize: vertical; min-height: 60px; }
.form-select {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); font-size: 14px; background: var(--bg-primary);
  outline: none; cursor: pointer; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b6b6b' stroke-width='1.5'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 8px center; padding-right: 32px;
}
.form-select:focus { border-color: var(--text-primary); }

/* ─── Form row (inline) ─── */
.form-row { display: flex; gap: 12px; }
.form-row .form-group { flex: 1; }

/* ─── Icon Picker ─── */
.icon-picker { display: flex; flex-wrap: wrap; gap: 4px; max-height: 200px; overflow-y: auto; }
.icon-picker-item {
  width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm); color: var(--text-secondary);
  transition: all 0.2s ease; border: 1px solid transparent;
}
.icon-picker-item:hover { background: var(--bg-hover); }
.icon-picker-item.active { border-color: var(--text-primary); background: var(--bg-secondary); color: var(--text-primary); }

/* ─── Banner Image Picker ─── */
.banner-img-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 8px; }
.banner-img-option {
  height: 64px; border-radius: var(--radius-sm); overflow: hidden;
  border: 2px solid transparent; cursor: pointer; transition: border-color 0.2s ease;
}
.banner-img-option:hover { border-color: var(--text-muted); }
.banner-img-option.selected { border-color: var(--text-primary); }
.banner-img-option img { width: 100%; height: 100%; object-fit: cover; }

/* ─── Search Results Overlay ─── */
.search-results {
  position: absolute; top: 100%; left: 0; right: 0; margin-top: 4px;
  background: var(--bg-primary); border: 1px solid var(--border);
  border-radius: var(--radius); max-height: 320px; overflow-y: auto; z-index: 200; display: none;
  min-width: 320px;
}
.search-results.active { display: block; }
.search-result-item { display: flex; align-items: center; gap: 12px; padding: 10px 14px; transition: background 0.2s ease; cursor: pointer; }
.search-result-item:hover { background: var(--bg-hover); }
.search-result-item .card-favicon { width: 28px; height: 28px; }
.search-result-title { font-size: 14px; font-weight: 500; }
.search-result-url { font-size: 12px; color: var(--text-muted); }

/* ─── Drag States ─── */
.sortable-ghost { opacity: 0.3; }
.sortable-chosen { opacity: 0.8; }
.sortable-drag { opacity: 0.9; border: 1px dashed var(--border); background: var(--bg-primary) !important; }

/* ─── View-only mode: hide edit controls ─── */
.view-mode .banner-edit-btn,
.view-mode .category-drag-handle,
.view-mode .category-actions,
.view-mode .card-actions,
.view-mode .card-drag-handle,
.view-mode .add-bookmark-inline { display: none !important; }

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  :root { --grid-cols: 4; --list-cols: 2; }
}
@media (max-width: 768px) {
  :root { --grid-cols: 3; --list-cols: 2; }
}
@media (max-width: 640px) {
  :root { --grid-cols: 2; --list-cols: 1; }
  .banner-title { font-size: 28px; }
  .banner-content { padding: 24px var(--content-pad); }
  .search-input { width: 200px; }
  .search-input:focus { width: 260px; }
  .topbar { flex-direction: column; align-items: stretch; }
  .topbar-right { justify-content: flex-end; }
  .quick-access-item { min-width: 64px; }
}
@media (max-width: 480px) {
  :root { --grid-cols: 1; --list-cols: 1; }
}

/* ─── Scrollbar ─── */
::-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); }

/* ─── Animations ─── */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.fade-in { animation: fadeIn 0.2s ease; }