:root {
  --bg: #0d1117;
  --bg2: #161b22;
  --bg3: #1f2630;
  --border: #2d333b;
  --text: #e6edf3;
  --muted: #8b949e;
  --green: #3fb950;
  --green2: #2ea043;
  --fire: #f0883e;
  --poop: #a371f7;
  --radius: 12px;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
}

.wrap { max-width: 1000px; margin: 0 auto; padding: 0 20px; }

/* ===== Topbar ===== */
.topbar {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.topbar-in { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; padding: 12px 20px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.logo-panda { font-size: 30px; }
.logo-text { font-size: 22px; font-weight: 800; letter-spacing: 0.5px; }
.logo-accent { color: var(--green); }
.nd {
  background: linear-gradient(90deg, var(--green), #58a6ff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-weight: 800;
}
.logo-sub { font-size: 12px; color: var(--muted); }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
  color: var(--muted); text-decoration: none; padding: 6px 12px;
  border-radius: 8px; font-size: 14px;
}
.nav a:hover { color: var(--text); background: var(--bg3); }
.nav a.active { color: var(--green); background: var(--bg3); font-weight: 600; }
.search { display: flex; gap: 6px; margin-left: auto; }
.search input {
  background: var(--bg); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 7px 12px; width: 180px; outline: none;
}
.search input:focus { border-color: var(--green); }
.search button {
  background: var(--green); color: #000; border: none; border-radius: 8px;
  padding: 0 12px; cursor: pointer; font-size: 14px;
}

/* ===== Hero ===== */
.hero { padding: 48px 0 24px; }
.hero h1 { font-size: 34px; line-height: 1.25; margin-bottom: 12px; }
.hero .grad {
  background: linear-gradient(90deg, var(--green), #58a6ff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p { color: var(--muted); font-size: 17px; max-width: 640px; }

/* ===== Tree (главная) ===== */
.tree-section { margin-bottom: 26px; }
.tree-head {
  font-size: 15px; font-weight: 700; color: var(--muted);
  letter-spacing: 0.3px; margin-bottom: 4px; padding: 0 6px;
}
.tree-list {
  display: flex; flex-direction: column;
  background: var(--bg2); border: 1px solid var(--border); border-radius: 14px;
  overflow: hidden;
}
.tree-item {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 16px; text-decoration: none; color: var(--text);
  border-bottom: 1px solid var(--border);
  transition: background 0.2s, padding-left 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.tree-item:last-child { border-bottom: none; }
.tree-item:hover { background: var(--bg3); padding-left: 20px; }
.tree-item:active { background: var(--bg3); }
.tree-title { font-size: 14.5px; font-weight: 600; line-height: 1.4; }
.tree-title .accent { color: var(--green); }
.tree-arrow { color: var(--muted); font-size: 14px; flex-shrink: 0; transition: transform 0.25s, color 0.25s; }
.tree-item:hover .tree-arrow { color: var(--green); transform: translateX(3px); }

/* ===== Grid (инструменты) ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px; padding: 12px 0 40px;
}
.card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: 14px;
  padding: 14px 12px; text-decoration: none; color: var(--text);
  display: flex; flex-direction: column; gap: 6px; min-height: 110px;
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1),
              border-color 0.3s, box-shadow 0.3s;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--green);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.4);
}
.card:active {
  transform: translateY(-1px) scale(0.97);
  transition-duration: 0.12s;
}
.card-icon { font-size: 28px; line-height: 1; }
.card h2 { font-size: 13.5px; font-weight: 700; line-height: 1.35; color: var(--text); }
.card h2 .accent { color: var(--green); }
.card-cat {
  color: var(--muted); font-size: 10px; letter-spacing: 0.4px;
  text-transform: uppercase; font-weight: 600; margin-top: auto;
}
.chip {
  background: var(--bg3); border: 1px solid var(--border); color: var(--muted);
  font-size: 12px; padding: 3px 10px; border-radius: 20px;
}
.date { color: var(--muted); font-size: 12px; }
.tags { color: var(--muted); font-size: 12px; }

.empty { text-align: center; padding: 80px 0; color: var(--muted); font-size: 18px; }
.empty p:first-child { font-size: 60px; margin-bottom: 12px; }

/* ===== Post ===== */
.post { padding: 32px 0 48px; }
.back { color: var(--muted); text-decoration: none; font-size: 14px; }
.back:hover { color: var(--green); }
.post-head { margin-bottom: 24px; }
.post-meta { display: flex; gap: 12px; align-items: center; margin: 16px 0 10px; flex-wrap: wrap; }
.post h1 { font-size: 30px; line-height: 1.3; }
.post-body {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; font-size: 16px;
}
.post-body h2 { margin: 24px 0 12px; font-size: 22px; color: var(--green); }
.post-body h3 { margin: 20px 0 10px; font-size: 18px; }
.post-body p { margin-bottom: 14px; }
.post-body ul, .post-body ol { margin: 0 0 14px 24px; }
.post-body li { margin-bottom: 6px; }
.post-body pre {
  background: #010409; border: 1px solid var(--border); border-radius: 8px;
  padding: 14px; overflow-x: auto; margin-bottom: 14px; font-size: 13.5px;
}
.post-body code { font-family: Consolas, "Courier New", monospace; }
.post-body :not(pre) > code { background: var(--bg3); padding: 2px 6px; border-radius: 5px; font-size: 14px; }
.post-body table { border-collapse: collapse; width: 100%; margin-bottom: 14px; }
.post-body th, .post-body td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.post-body th { background: var(--bg3); }
.post-body img { max-width: 100%; border-radius: 8px; }
.post-body a { color: #58a6ff; }
.post-body blockquote {
  border-left: 3px solid var(--green); padding: 4px 16px; color: var(--muted);
  margin-bottom: 14px; background: var(--bg3); border-radius: 0 8px 8px 0;
}
details.law-ref {
  background: var(--bg3); border: 1px solid var(--border); border-radius: 10px;
  margin: 14px 0; overflow: hidden;
}
details.law-ref summary {
  cursor: pointer; padding: 10px 14px; font-size: 13.5px; font-weight: 600;
  color: var(--green); list-style: none; user-select: none;
  transition: color 0.2s, background 0.2s;
}
details.law-ref summary::-webkit-details-marker { display: none; }
details.law-ref summary::before { content: "▸ "; display: inline-block; transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1); }
details.law-ref[open] summary::before { transform: rotate(90deg); }
details.law-ref summary:hover { color: #58a6ff; background: rgba(63,185,80,0.08); }
details.law-ref summary:active { background: rgba(63,185,80,0.15); }
details.law-ref blockquote {
  margin: 0 14px 14px; border-left: 3px solid var(--green);
  background: var(--bg2); padding: 10px 14px; border-radius: 0 8px 8px 0;
  color: var(--muted); font-size: 13.5px; line-height: 1.55;
}

/* ===== Reactions ===== */
.reactions {
  position: relative;
  display: flex; gap: 14px; align-items: center; margin: 28px 0; padding: 20px;
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); flex-wrap: wrap;
}
.reactions-title { color: var(--muted); font-size: 14px; margin-right: 4px; }
.react-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.react-btn {
  border: 1px solid var(--border); background: var(--bg3); color: var(--text);
  border-radius: 12px; padding: 10px 18px; font-size: 16px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1),
              border-color 0.25s, background 0.25s, box-shadow 0.25s;
}
.btn-fire:hover { border-color: var(--fire); background: rgba(240,136,62,0.12); transform: translateY(-2px) scale(1.03); box-shadow: 0 8px 20px rgba(240,136,62,0.15); }
.btn-poop:hover { border-color: var(--poop); background: rgba(163,113,247,0.12); transform: translateY(-2px) scale(1.03); box-shadow: 0 8px 20px rgba(163,113,247,0.15); }
.react-btn:active { transform: translateY(0) scale(0.96); transition-duration: 0.1s; box-shadow: none; }
.react-btn.active.btn-fire { border-color: var(--fire); background: rgba(240,136,62,0.22); }
.react-btn.active.btn-poop { border-color: var(--poop); background: rgba(163,113,247,0.22); }
.react-count { font-weight: 700; }
.btn-sub { font-size: 12px; color: var(--muted); }

/* ===== Toast ===== */
.toast {
  position: absolute; right: 20px; top: -18px; z-index: 20;
  background: var(--bg3); border: 1px solid var(--border); border-radius: 10px;
  padding: 8px 18px; font-size: 14px; font-weight: 600; white-space: nowrap;
  opacity: 0; transform: translateY(10px); pointer-events: none;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
  transition: opacity 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast-fire { border-color: var(--fire); color: var(--fire); }
.toast-poop { border-color: var(--poop); color: var(--poop); }

/* ===== Comments ===== */
.comments { margin-top: 20px; }
.comments h3 { margin-bottom: 14px; }
.comment-form { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.comment-form input, .comment-form textarea {
  background: var(--bg2); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 10px 14px; outline: none; font-family: inherit;
}
.comment-form input:focus, .comment-form textarea:focus { border-color: var(--green); }
.comment-form button, .btn-primary {
  background: var(--green); color: #000; border: none; border-radius: 8px;
  padding: 10px 18px; font-weight: 600; cursor: pointer; align-self: flex-start; text-decoration: none; font-size: 14px;
}
.comment {
  background: var(--bg2); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 16px; margin-bottom: 10px;
}
.comment-head { display: flex; justify-content: space-between; margin-bottom: 4px; }
.empty-small { color: var(--muted); font-size: 14px; }

/* ===== Admin ===== */
.admin { padding: 32px 0 48px; }
.admin-head { display: flex; gap: 12px; align-items: center; margin-bottom: 20px; flex-wrap: wrap; }
.admin-head h1 { font-size: 26px; margin-right: auto; }
.btn-primary:hover { background: var(--green2); }
.btn-ghost {
  background: transparent; border: 1px solid var(--border); color: var(--muted);
  padding: 10px 18px; border-radius: 8px; text-decoration: none; font-size: 14px;
}
.btn-ghost:hover { color: var(--text); border-color: var(--muted); }
.admin-table { width: 100%; border-collapse: collapse; background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.admin-table th, .admin-table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14px; }
.admin-table th { background: var(--bg3); color: var(--muted); }
.admin-table a { color: var(--text); text-decoration: none; }
.admin-table a:hover { color: var(--green); }
.row-actions { display: flex; gap: 6px; }
.btn-small { background: var(--bg3); border: 1px solid var(--border); color: var(--text); border-radius: 6px; padding: 4px 8px; cursor: pointer; text-decoration: none; font-size: 13px; }
.btn-small.danger:hover { border-color: #f85149; }
.edit-form { display: flex; flex-direction: column; gap: 14px; max-width: 800px; }
.edit-form label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; color: var(--muted); }
.edit-form input, .edit-form select, .edit-form textarea {
  background: var(--bg2); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 10px 14px; outline: none; font-family: inherit; font-size: 15px;
}
.edit-form input:focus, .edit-form select:focus, .edit-form textarea:focus { border-color: var(--green); }
.edit-form textarea { font-family: Consolas, "Courier New", monospace; line-height: 1.5; }

/* ===== Auth ===== */
.auth { max-width: 360px; margin: 80px auto; background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; }
.auth h1 { font-size: 20px; margin-bottom: 16px; }
.auth form { display: flex; flex-direction: column; gap: 10px; }
.auth input { background: var(--bg); border: 1px solid var(--border); color: var(--text); border-radius: 8px; padding: 10px 14px; outline: none; }
.auth input:focus { border-color: var(--green); }
.auth button { background: var(--green); color: #000; border: none; border-radius: 8px; padding: 10px; font-weight: 600; cursor: pointer; }
.error { color: #f85149; font-size: 14px; margin-bottom: 10px; }

/* ===== Footer ===== */
.footer { border-top: 1px solid var(--border); padding: 24px 0 40px; margin-top: 20px; color: var(--muted); font-size: 14px; }
.footer-small { color: var(--muted); opacity: 0.7; font-size: 12px; margin-top: 4px; }
.footer-link { color: var(--muted); text-decoration: none; }
.footer-link:hover { color: var(--green); }

/* ===== Просмотры, звания, вентилятор ===== */
.views { color: var(--muted); font-size: 12px; }
.my-rank { margin-top: 12px; color: var(--green); font-size: 13.5px; font-weight: 700; }
.rank-points { color: var(--muted); font-weight: 400; font-size: 12px; }
.comment-rank { color: var(--green); font-size: 11.5px; margin-left: 10px; }
.fan-btn {
  position: fixed; bottom: 22px; right: 22px; z-index: 50;
  background: var(--bg3); border: 1px solid var(--green); color: var(--green);
  border-radius: 30px; padding: 11px 20px; font-size: 13.5px; font-weight: 700;
  cursor: pointer; font-family: inherit;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.5);
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.3s, background 0.2s;
}
.fan-btn:hover { transform: translateY(-3px); background: rgba(63, 185, 80, 0.12); box-shadow: 0 14px 34px rgba(0, 0, 0, 0.55); }
.fan-btn:active { transform: scale(0.93); transition-duration: 0.1s; }

@media (max-width: 720px) {
  .hero h1 { font-size: 26px; }
  .search { margin-left: 0; width: 100%; }
  .search input { flex: 1; width: auto; }
  .post-body { padding: 18px; }
}

/* ===== Tool form (акт замера) ===== */
.tool-form { display: flex; flex-direction: column; gap: 18px; padding: 8px 0 40px; }
.tf-section { background: var(--bg2); border: 1px solid var(--border); border-radius: 14px; padding: 18px; }
.tf-section h2 { font-size: 14px; font-weight: 700; color: var(--muted); letter-spacing: 0.3px; text-transform: uppercase; margin-bottom: 12px; }
.tf-section h2 small { text-transform: none; font-weight: 400; font-size: 12px; color: var(--muted); }
.tf-section h3 { font-size: 13px; color: var(--green); margin-bottom: 8px; }
.tf-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.tf-measure { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.tf-measure-block { display: flex; flex-direction: column; gap: 10px; }
.tf-field { display: flex; flex-direction: column; gap: 4px; }
.tf-field span { font-size: 12px; color: var(--muted); }
.tf-wide { grid-column: 1 / -1; }
.tf-field input, .tf-field select {
  background: var(--bg); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 9px 12px; font-size: 14px; outline: none;
  transition: border-color 0.2s;
}
.tf-field input:focus, .tf-field select:focus { border-color: var(--green); }
.tf-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.tf-result { justify-content: center; padding: 20px 0 8px; }
.tf-back { text-align: center; margin-bottom: 40px; }
.tf-back a { color: var(--muted); text-decoration: none; font-size: 14px; }
.tf-back a:hover { color: var(--green); }
.btn {
  background: var(--green); color: #000; border: none; border-radius: 10px;
  padding: 13px 26px; font-size: 15px; font-weight: 700; cursor: pointer;
  text-decoration: none; display: inline-block;
  transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.25s, filter 0.2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(63, 185, 80, 0.35); filter: brightness(1.05); }
.btn:active { transform: translateY(0) scale(0.97); transition-duration: 0.1s; }
.btn-big { font-size: 16px; padding: 16px 30px; }
.btn-ghost { background: transparent; color: var(--green); border: 1px solid var(--green); }
.btn-ghost:hover { box-shadow: 0 8px 22px rgba(63, 185, 80, 0.2); }
.tool-error {
  background: rgba(248, 81, 73, 0.12); border: 1px solid #f85149; color: #ffa198;
  border-radius: 10px; padding: 12px 16px; font-size: 14px; margin-bottom: 16px;
}
.tf-hint { font-size: 11px; color: var(--muted); }