:root {
  --bg: #000000;
  --bg-soft: #0a0a0a;
  --bg-card: #0d0d0d;
  --red: #ff1f1f;
  --red-dim: #b71515;
  --red-faint: rgba(255, 31, 31, 0.12);
  --line: rgba(255, 31, 31, 0.22);
  --text-dim: #8a1414;
  --mono: "SFMono-Regular", "Consolas", "Liberation Mono", Menlo, monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--red);
  font-family: var(--mono);
  min-height: 100vh;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}

.hidden {
  display: none !important;
}

code,
pre {
  font-family: var(--mono);
}

/* ---------- Top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 28px;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  color: var(--red);
  font-size: 22px;
  animation: blink 2.4s steps(1) infinite;
}

@keyframes blink {
  0%,
  70% { opacity: 1; }
  71%,
  100% { opacity: 0.25; }
}

.brand h1 {
  margin: 0;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.brand-light {
  color: var(--red-dim);
  font-weight: 400;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--red);
  padding: 9px 14px;
  font-family: var(--mono);
  outline: none;
  width: 220px;
  border-radius: 2px;
}
.search::placeholder {
  color: var(--text-dim);
}
.search:focus {
  border-color: var(--red);
}

/* ---------- Buttons ---------- */
.btn {
  background: transparent;
  border: 1px solid var(--red);
  color: var(--red);
  padding: 9px 16px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  cursor: pointer;
  text-transform: uppercase;
  border-radius: 2px;
  transition: background 0.12s, color 0.12s;
}
.btn:hover {
  background: var(--red);
  color: #000;
}
.btn.ghost {
  border-color: var(--line);
  color: var(--red-dim);
  padding: 7px 12px;
}
.btn.ghost:hover {
  border-color: var(--red);
  background: var(--red-faint);
  color: var(--red);
}
.btn.primary {
  background: var(--red);
  color: #000;
  font-weight: 700;
}
.btn.primary:hover {
  background: #fff;
}
.linklike {
  background: none;
  border: none;
  color: var(--red-dim);
  cursor: pointer;
  font-family: var(--mono);
  text-decoration: underline dotted;
  padding: 0;
}
.linklike:hover {
  color: var(--red);
}

/* ---------- Category bar ---------- */
.category-bar {
  display: flex;
  gap: 8px;
  padding: 16px 28px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
}
.cat {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--red-dim);
  padding: 6px 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  cursor: pointer;
  text-transform: uppercase;
  border-radius: 2px;
}
.cat:hover {
  border-color: var(--red);
  color: var(--red);
}
.cat.active {
  background: var(--red);
  border-color: var(--red);
  color: #000;
  font-weight: 700;
}
.cat .count {
  opacity: 0.7;
  margin-left: 6px;
}

/* ---------- Grid ---------- */
main {
  padding: 28px;
  max-width: 1300px;
  margin: 0 auto;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 18px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s, transform 0.15s;
}
.card:hover {
  border-color: var(--red);
  transform: translateY(-3px);
}

.card-thumb {
  aspect-ratio: 16 / 10;
  width: 100%;
  object-fit: cover;
  display: block;
  background: var(--bg-soft);
  filter: saturate(0.9);
}
.card-thumb.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 38px;
  font-weight: 800;
  color: var(--red-dim);
  letter-spacing: 0.1em;
  background:
    repeating-linear-gradient(
      45deg,
      #0a0a0a,
      #0a0a0a 10px,
      #0d0606 10px,
      #0d0606 20px
    );
}

.card-body {
  padding: 12px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.card-title {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.card-cat {
  font-size: 11px;
  color: var(--red-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.card-desc {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-play {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.2em;
}
.card:hover .card-play {
  opacity: 1;
}

.card-del {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid var(--line);
  color: var(--red-dim);
  width: 26px;
  height: 26px;
  border-radius: 2px;
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  opacity: 0;
  z-index: 2;
}
.card:hover .card-del {
  opacity: 1;
}
.card-del:hover {
  border-color: var(--red);
  color: var(--red);
  background: #000;
}

.empty {
  text-align: center;
  color: var(--text-dim);
  margin-top: 60px;
  line-height: 1.7;
}
.empty code {
  color: var(--red);
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding: 18px 28px;
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 12px;
  color: var(--red-dim);
  flex-wrap: wrap;
}
.footer .dot {
  opacity: 0.5;
}

/* ---------- Overlays ---------- */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: 24px;
}

.player-shell {
  width: min(1100px, 96vw);
  height: min(86vh, 900px);
  background: var(--bg-soft);
  border: 1px solid var(--red);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.player-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  gap: 12px;
}
.player-head h2 {
  margin: 0 0 4px;
  font-size: 18px;
  letter-spacing: 0.08em;
}
.player-head-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}
.chip {
  font-size: 11px;
  color: var(--red-dim);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.player-frame-wrap {
  flex: 1;
  background: #000;
}
#playerFrame {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}
.player-desc {
  margin: 0;
  padding: 12px 18px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.5;
  max-height: 90px;
  overflow: auto;
}

/* ---------- Modals ---------- */
.modal {
  width: min(560px, 96vw);
  max-height: 90vh;
  overflow: auto;
  background: var(--bg-soft);
  border: 1px solid var(--red);
  border-radius: 4px;
}
.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
}
.modal-head h2 {
  margin: 0;
  font-size: 18px;
  letter-spacing: 0.08em;
}

.add-form {
  padding: 18px 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--red-dim);
}
.field input,
.field textarea {
  background: #000;
  border: 1px solid var(--line);
  color: var(--red);
  padding: 9px 12px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: normal;
  text-transform: none;
  border-radius: 2px;
  outline: none;
}
.field input:focus,
.field textarea:focus {
  border-color: var(--red);
}

.dropzone {
  border: 1px dashed var(--red-dim);
  border-radius: 3px;
  padding: 20px;
  text-align: center;
  background: #050505;
  transition: background 0.12s, border-color 0.12s;
}
.dropzone.drag {
  border-color: var(--red);
  background: var(--red-faint);
}
.dropzone-main {
  margin: 0 0 4px;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.dropzone-sub {
  margin: 0 0 12px;
  font-size: 12px;
  color: var(--text-dim);
}
.dropzone-sub code {
  color: var(--red);
}
.dropzone .btn {
  margin: 0 4px;
}
.file-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  text-align: left;
  font-size: 12px;
  color: var(--text-dim);
  max-height: 130px;
  overflow: auto;
}
.file-list li {
  padding: 2px 0;
  border-bottom: 1px dotted var(--line);
}

.form-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.error {
  margin: 0;
  color: var(--red);
  font-size: 12px;
}

.howto {
  padding: 18px 20px 24px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--red-dim);
}
.howto code {
  color: var(--red);
}
.tree {
  background: #000;
  border: 1px solid var(--line);
  padding: 14px;
  border-radius: 3px;
  color: var(--red);
  overflow: auto;
  font-size: 12px;
  line-height: 1.5;
}

@media (max-width: 600px) {
  .topbar {
    padding: 16px;
  }
  .search {
    width: 140px;
  }
  main {
    padding: 18px;
  }
}