:root {
  --bg: #f4f7f2;
  --card: #ffffff;
  --ink: #1f2a20;
  --muted: #5d6a5e;
  --line: #d9e1d8;
  --brand: #2e6f40;
  --brand-2: #183d25;
  --danger: #c53f3f;
  --dock-top: 156px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "PingFang SC", "Noto Sans SC", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 0%, #d9eed7 0%, transparent 36%),
    radial-gradient(circle at 90% 100%, #dce8ff 0%, transparent 30%),
    var(--bg);
}

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.hero {
  background: linear-gradient(130deg, var(--brand), var(--brand-2));
  color: #fff;
  padding: 22px 0 18px;
}

.hero-top {
  display: block;
}

.hero h1 { margin: 0; font-size: 34px; line-height: 1.1; }
.hero p { margin: 0; opacity: 0.92; }

.hero-logo {
  color: #fff;
  text-decoration: none;
}

.hero-subrow {
  margin-top: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.lang-switch {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-bottom: 14px;
}

.hero .lang-switch {
  margin-bottom: 0;
}

.lang-switch button {
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: #fff;
  padding: 6px 12px;
}

.lang-switch button.active {
  background: #fff;
  color: var(--brand-2);
}

.lang-switch--light {
  margin-bottom: 12px;
}

.lang-switch--light button {
  background: #eef3ed;
  border: 1px solid var(--line);
  color: var(--ink);
}

.lang-switch--light button.active {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}

.layout {
  position: relative;
  display: block;
  padding: 20px 0 40px;
}

.left-nav {
  position: fixed;
  left: calc((100vw - min(1100px, 92vw)) / 2 - 96px);
  top: calc(var(--dock-top) + 44px);
  transform: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 20;
}

.left-nav button {
  width: 82px;
  background: #eef3ed;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 10px 0 0 10px;
}

.left-nav button.active {
  background: var(--brand);
  color: #fff;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}

.toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}

.admin .toolbar input {
  flex: 1;
  min-width: 220px;
}

input, textarea, button {
  font: inherit;
}

input, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  background: #fff;
}

.hidden-input {
  display: none;
}

.rich-editor {
  width: 100%;
  min-height: 320px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  background: #fff;
  color: var(--ink);
  overflow: auto;
}

.rich-editor:empty::before {
  content: attr(data-placeholder);
  color: #95a299;
}

.rich-editor img {
  max-width: 100%;
  height: auto;
}

.editor-shell {
  position: relative;
}

.editor-scroll-actions {
  position: absolute;
  right: 10px;
  top: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 2;
}

.editor-scroll-actions button {
  width: 36px;
  height: 36px;
  border-radius: 18px;
  padding: 0;
  line-height: 1;
}

label {
  display: block;
  margin-bottom: 10px;
  font-size: 14px;
  color: var(--muted);
}

button {
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  background: var(--brand);
  color: #fff;
  cursor: pointer;
}

button.danger { background: var(--danger); }

#searchBtn {
  white-space: nowrap;
  min-width: 64px;
  flex-shrink: 0;
}

.categories {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
  position: sticky;
  top: 0;
  z-index: 15;
  background: var(--bg);
  padding: 0;
}

.categories button {
  background: #eef3ed;
  color: var(--ink);
}

.categories button.active {
  background: var(--brand);
  color: #fff;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.site-card-link {
  text-decoration: none;
  color: inherit;
}

.site-card, .review-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
}

.site-card {
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.site-card:hover {
  background: #bfe5c7;
  border-color: #79b589;
}

.review-card h3 {
  margin: 0 0 8px;
}

.review-card a {
  color: var(--brand-2);
  text-decoration: none;
}

.site-row {
  display: block;
  margin-bottom: 8px;
}

.site-row:last-child {
  margin-bottom: 0;
}

.site-value {
  color: var(--ink);
  word-break: break-word;
}

.site-link {
  color: var(--brand-2);
  text-decoration: underline;
}

.message { font-size: 13px; margin: 8px 0 0; }
.message.success { color: #256e2f; }
.message.error { color: var(--danger); }

.empty { color: var(--muted); }

.hidden { display: none; }

.admin {
  max-width: 1000px;
  padding: 20px 0 40px;
}

.admin-panel-grid {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 16px;
}

.admin-nav {
  display: grid;
  gap: 8px;
  align-content: start;
}

.admin-nav button {
  width: 100%;
}

.admin-add-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.admin-add-form button { grid-column: 1 / -1; }

.admin-list {
  display: grid;
  gap: 10px;
}

.tutorial-item {
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  text-decoration: none;
  color: var(--ink);
}

.tutorial-item:hover {
  background: #bfe5c7;
  border-color: #79b589;
}

.tutorial-item h3 {
  margin: 0 0 8px;
}

.review-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.sort-row {
  align-items: end;
}

.sort-row label {
  margin: 0;
  min-width: 120px;
}

.sort-row input {
  margin-top: 4px;
}

.small {
  color: var(--muted);
  font-size: 12px;
}

.submit-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
}

.submit-modal.hidden {
  display: none;
}

.submit-modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(15, 24, 17, 0.45);
}

.submit-modal-card {
  position: relative;
  width: min(620px, 92vw);
  max-height: 88vh;
  overflow: auto;
}

.submit-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.submit-close-btn {
  background: #eef3ed;
  color: var(--ink);
  border: 1px solid var(--line);
}

.tutorial-layout {
  grid-template-columns: 1fr;
}

.tutorial-card h2 {
  margin-top: 0;
}

.tutorial-content img {
  max-width: 100%;
  height: auto;
}

.tutorial-side-action {
  position: fixed;
  left: calc((100vw - min(1100px, 92vw)) / 2 - 120px);
  top: 200px;
  z-index: 20;
}

.tutorial-side-action button {
  width: 96px;
  border-radius: 10px 0 0 10px;
}

.tutorial-scroll-action {
  position: fixed;
  left: calc((100vw + min(1100px, 92vw)) / 2 + 12px);
  bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 20;
}

.tutorial-scroll-action button {
  width: 42px;
  height: 42px;
  border-radius: 21px;
  padding: 0;
  line-height: 1;
}

@media (max-width: 900px) {
  .layout { display: block; }
  .hero-subrow {
    align-items: flex-start;
    flex-direction: column;
  }
  .left-nav {
    position: static;
    transform: none;
    flex-direction: row;
    margin-bottom: 12px;
  }
  .categories {
    position: static;
    background: transparent;
    padding: 0;
  }
  .tutorial-side-action {
    position: static;
    margin-bottom: 10px;
  }
  .tutorial-side-action button {
    width: auto;
    border-radius: 10px;
  }
  .tutorial-scroll-action {
    left: 10px;
    bottom: 10px;
  }
  .left-nav button { border-radius: 10px; width: auto; }
  .admin-panel-grid { grid-template-columns: 1fr; }
  .admin-add-form { grid-template-columns: 1fr; }
}