:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --text: #2c2c2c;
  --text-2: #888;
  --text-3: #bbb;
  --line: #ebebeb;
  --accent: #22c55e;
  --accent-dark: #16a34a;
  --accent-soft: rgba(34, 197, 94, 0.1);
  --accent-text: #15803d;
  --hover: #f0f0ee;
  --shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
  --radius: 6px;
  --max: 880px; 
  --search-width: 520px;
}

.dark {
  --bg: #1a1a1a;
  --surface: #242424;
  --text: #e8e8e8;
  --text-2: #999;
  --text-3: #666;
  --line: #333;
  --accent-soft: rgba(34, 197, 94, 0.14);
  --accent-text: #4ade80;
  --hover: #2a2a2a;
  --shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.nav {
  position: fixed;
  left: -9999px;
  top: 0;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

html {
  overflow-x: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Helvetica Neue', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.top-hint {
  position: fixed;
  top: 20px;
  left: 16px;
  z-index: 50;
  display: flex;
  align-items: flex-start;
  gap: 6px;
  max-width: min(320px, calc(100% - 120px));
  margin: 0;
  font-size: 12px;
  line-height: 1.45;
  color: var(--text-3);
  transition: opacity 0.35s ease;
}

.top-hint-emoji {
  flex-shrink: 0;
  font-size: 13px;
  line-height: 1.45;
}

.top-hint-text {
  flex: 1;
  min-width: 0;
}

.top-hint.is-fading {
  opacity: 0;
}

.dark .top-hint {
  color: #777;
}

.top-actions {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toolbar-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  padding: 0;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  transition: color 0.2s, background 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.toolbar-btn:hover {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: var(--line);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.dark .toolbar-btn {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.dark .toolbar-btn:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.toolbar-btn svg {
  width: 16px;
  height: 16px;
}

.theme-select-wrap {
  position: relative;
}

.theme-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 128px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  padding: 4px;
  z-index: 60;
}

.dark .theme-dropdown {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
}

.theme-option {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 10px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  transition: background 0.12s;
}

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

.theme-option.active {
  background: var(--hover);
  font-weight: 600;
}

.theme-option svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.theme-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 1px var(--accent-soft), 0 0 0 3px var(--accent-soft);
}

.theme-btn #themeIcon {
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
}

.theme-btn #themeIcon svg {
  width: 16px;
  height: 16px;
  display: block;
}

.main {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(88px, 12vh, 120px) 24px 28px;
}

body.page-home .main {
  padding-bottom: 24px;
}

body.page-home .block-cat {
  margin-bottom: 16px;
}

body.page-home .block-recent {
  margin-bottom: 12px;
}

body.page-home .home-tip {
  margin: 80px 0 8px;
  text-align: center;
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.5;
}

body.page-home .footer {
  padding-top: 16px;
}

body.page-home .footer-note {
  margin-top: 6px;
}

/* ── Header ── */
.header {
  text-align: center;
  margin-bottom: 20px;
}

.brand-heading {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.brand {
  display: inline-block;
  text-decoration: none;
  line-height: 1.1;
}

.brand-main {
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  color: #22c55e;
}

.brand-slogan {
  text-align: center;
  font-size: 14px;
  font-weight: 400;
  color: var(--text-2);
  margin: 10px 0 0;
  letter-spacing: 0.02em;
}

.dark .brand-slogan {
  color: #999;
}

/* ── Search ── */
.search-section {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.search-box {
  width: 100%;
  max-width: var(--search-width);
}

.search-shell {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--surface);
  border: 1px solid rgba(0, 0, 0, 0.07);
  border-radius: 12px;
  padding: 5px 6px 5px 5px;
  box-shadow: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-shell:focus-within {
  border-color: rgba(34, 197, 94, 0.45);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.dark .search-shell {
  border-color: rgba(255, 255, 255, 0.1);
}

.dark .search-shell:focus-within {
  border-color: rgba(34, 197, 94, 0.5);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.engine-select-wrap {
  position: relative;
  flex-shrink: 0;
}

.engine-trigger {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 36px;
  padding: 0 8px 0 6px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s;
}

.engine-trigger:hover,
.engine-trigger.open {
  background: var(--hover);
}

.engine-trigger-icon {
  width: 18px;
  height: 18px;
  object-fit: contain;
  flex-shrink: 0;
  border-radius: 4px;
}

.engine-trigger-name {
  max-width: 4.5em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.engine-chevron {
  width: 10px;
  height: 10px;
  color: var(--text-3);
  flex-shrink: 0;
  transition: transform 0.2s;
}

.engine-trigger.open .engine-chevron {
  transform: rotate(180deg);
}

.engine-dropdown {
  position: absolute;
  left: 0;
  top: calc(100% + 6px);
  min-width: 140px;
  max-height: 220px;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  padding: 4px;
  z-index: 50;
}

.dark .engine-dropdown {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
}

.engine-option {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 10px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  transition: background 0.12s;
}

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

.engine-option.active {
  background: var(--hover);
  font-weight: 600;
}

.engine-option img {
  width: 16px;
  height: 16px;
  object-fit: contain;
}

.search-input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  font-size: 15px;
  color: var(--text);
  padding: 8px 10px;
  outline: none;
  line-height: 1.4;
}

.search-input::placeholder {
  color: #b0b0b0;
  font-size: 13px;
}

.dark .search-input::placeholder {
  color: #666;
  font-size: 13px;
}

.search-submit {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.15s;
}

.search-submit:hover {
  background: var(--accent-dark);
}

.search-submit svg {
  width: 17px;
  height: 17px;
}

@media (max-width: 480px) {
  .engine-trigger-name {
    display: none;
  }

  .engine-trigger {
    padding: 0 4px;
  }
}

/* ── Block ── */
.block {
  margin-bottom: 0;
}

.block-fav {
  margin-bottom: 80px;
}

.block-cat {
  margin-top: 12px;
  margin-bottom: 28px;
  overflow: visible;
}

.block-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  padding: 0 2px;
}

.block-label {
  font-size: 13px;
  color: var(--text-2);
}

.block-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.text-btn {
  border: 0;
  background: none;
  font-size: 13px;
  color: var(--text-2);
  cursor: pointer;
  padding: 2px 4px;
  transition: color 0.2s;
}

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

.sep {
  color: var(--text-3);
  font-size: 13px;
  user-select: none;
}

/* ── Link grid ── */
.link-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
}

.link-grid--2rows {
  grid-template-rows: repeat(2, auto);
}

@media (min-width: 640px) {
  .link-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

@media (min-width: 860px) {
  .link-grid {
    grid-template-columns: repeat(8, 1fr);
  }
}

/* ── Category links grid ── */
.cat-link-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 4px 6px;
}

@media (min-width: 860px) {
  .cat-link-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

.link-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 12px 4px;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  position: relative;
  transition: background 0.15s;
}

.link-item:hover {
  background: var(--hover);
}

.block-fav .link-item--draggable {
  cursor: grab;
  user-select: none;
  touch-action: none;
}

.block-fav .link-item--draggable:active {
  cursor: grabbing;
}

.block-fav .link-item.is-dragging {
  position: fixed;
  z-index: 200;
  margin: 0;
  cursor: grabbing;
  opacity: 0.96;
  transform: scale(1.05);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.14);
  background: var(--surface);
  transition: none;
  pointer-events: none;
}

.dark .block-fav .link-item.is-dragging {
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
}

.link-item-placeholder {
  border: 2px dashed rgba(34, 197, 94, 0.45);
  border-radius: var(--radius);
  background: var(--accent-soft);
  box-sizing: border-box;
  pointer-events: none;
}

body.is-fav-dragging {
  user-select: none;
  cursor: grabbing;
}

body.is-fav-dragging .block-fav .link-item--draggable:not(.is-dragging) {
  transition: none;
  pointer-events: none;
}

body.is-fav-dragging .block-fav .link-item--draggable:not(.is-dragging):hover {
  background: transparent;
}

body.is-fav-dragging .block-fav .link-item--draggable:not(.is-dragging) .fav-menu-btn {
  opacity: 0;
  transition: none;
}

.link-item--draggable {
  cursor: grab;
  user-select: none;
}

.link-item--draggable:active {
  cursor: grabbing;
}

.link-item .icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: contain;
  background: var(--surface);
}

.block-fav .link-item .icon {
  width: 40px;
  height: 40px;
}

.link-item .label {
  font-size: 13px;
  text-align: center;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
}

.cat-link-grid .link-item {
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  padding: 10px 8px;
  min-width: 0;
}

.cat-link-grid .link-item .icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border-radius: 6px;
}

.cat-link-grid .link-item .label {
  flex: 1;
  min-width: 0;
  text-align: left;
  font-size: 12px;
}

.cat-add-fav {
  position: absolute;
  top: 3px;
  right: 3px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--text-2);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.2s ease, color 0.15s;
}

.dark .cat-add-fav {
  color: var(--text);
}

.link-item--cat:hover .cat-add-fav {
  opacity: 1;
}

.cat-add-fav.is-favorited {
  color: #f59e0b;
}

.dark .cat-add-fav.is-favorited {
  color: #fbbf24;
}

.cat-add-fav:hover {
  color: var(--accent-text);
}

.cat-add-fav.is-favorited:hover {
  color: #f59e0b;
}

.dark .cat-add-fav.is-favorited:hover {
  color: #fbbf24;
}

.cat-add-fav-icon {
  width: 14px;
  height: 14px;
  display: block;
}

.link-item .fav-menu-wrap {
  position: absolute;
  top: 4px;
  right: 4px;
  z-index: 2;
}

.fav-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border: 0;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.06);
  color: var(--text-2);
  cursor: pointer;
  opacity: 0;
  padding: 0;
  transition: opacity 0.2s ease, color 0.15s, background 0.15s;
  transition-delay: 0s;
}

.dark .fav-menu-btn {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.fav-menu-icon {
  display: block;
  width: 14px;
  height: 14px;
}

.block-fav .link-item:hover .fav-menu-btn {
  opacity: 1;
  transition-delay: 0.35s;
}

.fav-menu-wrap.is-open .fav-menu-btn {
  opacity: 1;
  color: var(--text);
  background: rgba(0, 0, 0, 0.1);
  transition-delay: 0s;
}

.dark .fav-menu-wrap.is-open .fav-menu-btn {
  background: rgba(255, 255, 255, 0.16);
}

.fav-menu-btn:hover {
  color: var(--text);
  background: rgba(0, 0, 0, 0.12);
}

.dark .fav-menu-btn:hover {
  background: rgba(255, 255, 255, 0.18);
}

.fav-menu {
  position: absolute;
  top: calc(100% + 2px);
  right: -2px;
  min-width: 88px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 3px;
  z-index: 30;
}

.fav-menu-item {
  display: block;
  width: 100%;
  border: 0;
  background: none;
  text-align: left;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
  border-radius: 6px;
}

.fav-menu-item:hover {
  background: var(--hover);
}

.fav-menu-item--danger {
  color: #e5484d;
}

.fav-menu-item--danger:hover {
  background: rgba(229, 72, 77, 0.08);
}

.link-item--add {
  cursor: pointer;
  color: var(--text-3);
}

.link-item--add .icon-placeholder {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px dashed var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 300;
}

.block-fav .link-item--add .icon-placeholder {
  width: 40px;
  height: 40px;
  font-size: 24px;
}

.link-item--add:hover {
  color: var(--accent-text);
}

.link-item--add:hover .icon-placeholder {
  border-color: var(--accent);
}

.link-item--has-desc::before,
.link-item--has-desc::after {
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s, visibility 0.15s;
}

.link-item--has-desc::before {
  content: '';
  position: absolute;
  top: calc(100% + 5px);
  left: 50%;
  width: 10px;
  height: 10px;
  background: var(--surface);
  border-left: 1px solid var(--line);
  border-top: 1px solid var(--line);
  transform: translateX(-50%) rotate(45deg);
  z-index: 21;
}

.link-item--has-desc::after {
  content: attr(data-desc);
  position: absolute;
  top: calc(100% + 9px);
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 12px;
  font-size: 12px;
  line-height: 1.45;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  white-space: nowrap;
  z-index: 20;
}

.link-item--has-desc:hover::before,
.link-item--has-desc:hover::after {
  opacity: 1;
  visibility: visible;
}

/* ── Category tabs ── */
.cat-tabs {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px 4px;
  margin-bottom: 10px;
  padding: 0 2px;
  justify-items: center;
}

@media (min-width: 860px) {
  .cat-tabs {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 6px 8px;
  }

  .cat-tab {
    font-size: 15px;
  }

  .cat-tab.active {
    font-size: 16px;
  }
}

.cat-tab {
  border: 0;
  background: none;
  padding: 6px 2px;
  font-size: 13px;
  color: var(--text-2);
  cursor: pointer;
  position: relative;
  transition: color 0.2s;
  width: 100%;
  text-align: center;
  white-space: nowrap;
}

.cat-tab:hover {
  color: var(--text);
}

.cat-tab.active {
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
}

.cat-tab.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
}

/* ── Footer ── */
.footer {
  text-align: center;
  padding-top: 24px;
  font-size: 13px;
  color: var(--text-3);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 4px 0;
  line-height: 1.6;
}

.footer-nav a {
  color: var(--text-2);
  text-decoration: none;
  padding: 2px 6px;
}

.footer-nav a:hover {
  color: var(--accent-text);
}

.footer-sep {
  color: var(--text-3);
  user-select: none;
  padding: 0 2px;
}

.footer-note {
  margin: 10px 0 0;
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.5;
}

/* ── Recent ── */
.recent-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
}

.recent-label {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--text-3);
  user-select: none;
}

.recent-list {
  display: flex;
  flex: 1;
  min-width: 0;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
}

.recent-list::-webkit-scrollbar {
  display: none;
}

.recent-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  flex-shrink: 0;
  padding: 4px 8px 4px 4px;
  border-radius: 6px;
  text-decoration: none;
  color: var(--text-2);
  font-size: 12px;
  transition: background 0.15s, color 0.15s;
}

.recent-item:hover {
  background: var(--hover);
  color: var(--text);
}

.recent-item img {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  object-fit: contain;
  flex-shrink: 0;
}

.recent-item span {
  max-width: 72px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recent-clear {
  flex-shrink: 0;
  border: 0;
  background: none;
  padding: 2px 4px;
  font-size: 11px;
  color: var(--text-3);
  cursor: pointer;
  transition: color 0.15s;
}

.recent-clear:hover {
  color: var(--accent-text);
}

.export-btns {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.field-hint {
  margin: 0 0 10px;
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.5;
}

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}

.modal-overlay.show {
  display: flex;
}

.modal {
  width: 100%;
  max-width: 360px;
  background: var(--surface);
  border-radius: 10px;
  padding: 24px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.modal h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.modal-head h3 {
  margin-bottom: 0;
}

.import-btn {
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
  color: var(--text-2);
  font-size: 12px;
  line-height: 1.4;
  cursor: pointer;
  flex-shrink: 0;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.import-btn:hover {
  color: var(--text);
  border-color: var(--text-3);
  background: var(--hover);
}

.field {
  margin-bottom: 14px;
}

.field label {
  display: block;
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 5px;
}

.field input {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  outline: none;
}

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

.bg-presets {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.bg-preset {
  aspect-ratio: 1;
  border: 2px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  transition: border-color 0.15s, transform 0.15s;
}

.bg-preset:hover {
  transform: scale(1.06);
}

.bg-preset.active {
  border-color: var(--accent);
}

.bg-preset--default {
  background: linear-gradient(135deg, #f7f7f5 50%, #1a1a1a 50%);
}

.bg-custom {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-2);
}

.bg-custom input[type="color"] {
  width: 36px;
  height: 36px;
  padding: 2px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
}

.modal-foot {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 18px;
}

.btn {
  padding: 7px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
}

.btn-fill {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-fill:hover {
  background: var(--accent-dark);
  opacity: 1;
}

.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(60px);
  background: rgba(0, 0, 0, 0.75);
  color: #fff;
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 14px;
  z-index: 200;
  opacity: 0;
  transition: all 0.25s;
  pointer-events: none;
}

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

.hidden-input {
  display: none;
}

@media (max-width: 480px) {
  :root {
    --search-width: 100%;
  }

  .main {
    padding-top: clamp(72px, 10vh, 96px);
  }

  .link-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1100px) {
  :root {
    --max: 960px;
  }
}

/* ── Doc pages (about / privacy / submit) ── */
.doc-back {
  position: fixed;
  top: 20px;
  left: 16px;
  z-index: 50;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s;
}

.doc-back:hover {
  color: var(--accent-text);
}

.doc-main {
  max-width: 680px;
  padding-top: 72px;
  padding-bottom: 56px;
}

.doc h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 12px;
}

.doc-lead {
  font-size: 16px;
  color: var(--text);
  margin-bottom: 36px;
  line-height: 1.7;
}

.doc h2 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  margin: 32px 0 12px;
}

.doc p,
.doc li {
  font-size: 16px;
  color: var(--text);
  line-height: 1.8;
  margin-bottom: 12px;
}

.doc li strong {
  color: var(--text);
  font-weight: 600;
}

.doc ul {
  padding-left: 1.25em;
  margin-bottom: 16px;
}

.doc a {
  color: var(--accent-text);
  font-weight: 500;
  text-decoration: none;
}

.doc a:hover {
  text-decoration: underline;
}

.doc-updated {
  margin-top: 40px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
}

.doc-main .footer {
  font-size: 14px;
  color: var(--text-2);
}

.doc-main .footer-nav a {
  color: var(--text);
  font-size: 14px;
}

.doc-main .footer-sep {
  color: var(--text-2);
}

.submit-form {
  margin-top: 12px;
}

.submit-form .field {
  margin-bottom: 20px;
}

.submit-form label {
  display: block;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 8px;
}

.submit-form input,
.submit-form select,
.submit-form textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: 16px;
  font-family: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.submit-form input::placeholder,
.submit-form textarea::placeholder {
  color: var(--text-3);
  font-size: 15px;
}

.submit-form input:focus,
.submit-form select:focus,
.submit-form textarea:focus {
  border-color: rgba(34, 197, 94, 0.45);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.submit-form textarea {
  min-height: 100px;
  resize: vertical;
  line-height: 1.6;
}

.submit-form .field-hint {
  margin-top: 6px;
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.5;
}

.form-msg {
  margin: 14px 0 18px;
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.6;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent-text);
}

.form-msg.is-error {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
}

.dark .form-msg.is-error {
  color: #f87171;
}

.submit-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.submit-actions .btn-fill {
  min-width: 128px;
  font-size: 15px;
  padding: 10px 20px;
}

.submit-mail {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
}

.submit-mail a {
  color: var(--accent-text);
  font-weight: 500;
}