/* ============================================================
   DOCUMENTS.HTML — page-specific styles. Reuses .lib-grid,
   .lib-card, .uploader*, .owner-toggle, .owner-only, .viewer-*,
   .footer, .nav, .btn from main.css.
   ============================================================ */

.docs-header {
  padding: 56px 8vw 32px;
}

.docs-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  margin: 10px 0 10px;
}

.docs-header p {
  color: var(--text-dim);
  font-size: 0.92rem;
  max-width: 560px;
  margin-bottom: 28px;
}

.docs-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
}

.docs-search input {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  min-width: 260px;
}

.docs-search input:focus {
  outline: none;
  border-color: var(--mint);
}

.docs-filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 7px 16px;
  font-size: 0.78rem;
  color: var(--text-dim);
  cursor: pointer;
  font-family: var(--font-mono);
  transition: all 0.15s ease;
}

.filter-chip:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.filter-chip.active {
  background: var(--accent);
  color: #06140d;
  border-color: var(--accent);
  font-weight: 600;
}

/* ---------- Document body / topic blocks ---------- */
.docs-body {
  padding: 0 8vw 60px;
  display: flex;
  flex-direction: column;
  gap: 44px;
}

.docs-topic-block {
  animation: fadeUp 0.4s ease both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.docs-topic-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.docs-topic-count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-faint);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2px 9px;
}

.lib-card-actions.owner-row {
  margin-top: 8px;
}

.chip-hidden {
  color: var(--amber);
  border-color: var(--amber) !important;
}

/* ---------- Upload panel ---------- */
.docs-upload {
  padding: 56px 8vw;
  border-top: 1px solid var(--border);
  background: var(--bg-2);
}

.docs-upload h2 {
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  margin: 8px 0 10px;
}

.docs-upload-hint {
  color: var(--text-dim);
  font-size: 0.85rem;
  max-width: 600px;
  margin-bottom: 24px;
}

.upload-form {
  max-width: 640px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.upload-fields {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  font-size: 0.74rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.field input[type="text"],
.field input[type="date"],
.field textarea,
.field input[type="file"] {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 10px 12px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.field textarea {
  resize: vertical;
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--mint);
}

.field-row {
  display: flex;
  gap: 20px;
  align-items: flex-end;
}

.field-row .field {
  flex: 1;
}

.checkbox-field {
  flex-direction: row;
  align-items: center;
}

.checkbox-field label {
  display: flex;
  align-items: center;
  gap: 8px;
  text-transform: none;
  font-size: 0.82rem;
  color: var(--text);
}

.upload-actions {
  display: flex;
  gap: 12px;
}

.upload-actions .btn {
  cursor: pointer;
  border: none;
  font-family: inherit;
}

/* ---------- Edit modal ---------- */
.edit-box {
  width: min(560px, 100%);
}

.edit-fields {
  padding: 20px;
}

.edit-foot {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.edit-foot .btn {
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.viewer-empty {
  margin: auto;
  text-align: center;
  padding: 40px;
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ---------- Responsive ---------- */
@media (max-width: 880px) {

  .docs-header,
  .docs-body,
  .docs-upload {
    padding-left: 6vw;
    padding-right: 6vw;
  }

  .docs-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .docs-search input {
    width: 100%;
    min-width: 0;
  }

  .field-row {
    flex-direction: column;
    align-items: stretch;
  }
}

.topic-media {
  height: 72vh;

  display: flex;

  justify-content: center;

  align-items: center;

  overflow: hidden;
}

.topic-media img {

  max-width: 100%;

  max-height: 100%;

  object-fit: contain;

  border-radius: 16px;

}

.topic-media video {

  width: 100%;

  max-height: 70vh;

  border-radius: 16px;

}

/* ---------- Back button (shown when a topic detail page is open) ---------- */
.docs-back-btn {
  margin-top: 18px;
  background: none;
  border: 1px solid var(--border-strong);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 9px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.docs-back-btn:hover {
  border-color: var(--mint);
  color: var(--mint);
}

/* ---------- Topic grid (landing view) ---------- */
.docs-topic-grid {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px 60px;
}

.topic-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.topic-card {
  position: relative;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-top: 3px solid var(--topic-accent, var(--mint));
  border-radius: var(--radius-lg, 14px);
  overflow: hidden;
  cursor: pointer;
  font-family: inherit;
  padding: 0;
  transition: transform 0.3s cubic-bezier(.2, .7, .2, 1), box-shadow 0.3s ease, border-color 0.3s ease;
}

.topic-card-thumb {
  aspect-ratio: 16 / 10;
  background: #0c1410;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.topic-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.topic-card-icon {
  font-size: 2.4rem;
  opacity: 0.6;
}

.topic-card-body {
  padding: 16px 18px 18px;
}

.topic-card-body h3 {
  font-family: var(--font-display, inherit);
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 8px;
}

.topic-card-desc {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.55;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.topic-card-types {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.type-pill {
  font-size: 0.7rem;
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 9px;
  white-space: nowrap;
}

.topic-card-edit {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 12, 10, 0.65);
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  color: var(--text);
  font-size: 0.8rem;
  opacity: 0;
  transition: opacity 0.2s, border-color 0.2s, color 0.2s;
  backdrop-filter: blur(3px);
}

.topic-card:hover .topic-card-edit {
  opacity: 1;
}

.topic-card-edit:hover {
  border-color: var(--mint);
  color: var(--mint);
}

/* ---------- Topic-detail's own search box ---------- */
.docs-topic-search {
  max-width: 640px;
  margin: 0 auto 28px;
}

.docs-topic-search input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 11px 18px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.docs-topic-search input:focus {
  outline: none;
  border-color: var(--mint);
}

/* ---------- Upload drop zone ---------- */
.upload-drop {
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius-lg, 14px);
  padding: 32px 20px;
  text-align: center;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  transition: border-color 0.2s, background 0.2s;
}

.upload-drop:hover,
.upload-drop.dragover {
  border-color: var(--mint);
  background: rgba(110, 231, 183, 0.05);
}

.upload-drop-ico {
  font-size: 1.6rem;
  opacity: 0.7;
  margin-bottom: 4px;
}

.upload-drop strong {
  color: var(--text);
  font-size: 0.9rem;
}

#uploadFileLabel {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* ---------- Upload progress bar ---------- */
.upload-progress {
  height: 4px;
  border-radius: 2px;
  background: var(--border);
  overflow: hidden;
  opacity: 0;
  transition: opacity 0.2s;
}

.upload-progress.active {
  opacity: 1;
}

.upload-progress-bar {
  height: 100%;
  width: 0%;
  background: var(--mint);
  transition: width 0.3s ease;
}