/* ===== LaTeX Colab — estilos globales ===== */
:root {
  --accent: #4f8cff;
  --accent-text: #ffffff;
  --bg: #0f1218;
  --bg-2: #161b24;
  --bg-3: #1e2430;
  --bg-hover: #242b39;
  --border: #2a3140;
  --text: #e6e9ef;
  --muted: #8b94a7;
  --danger: #ff6b6b;
  --ok: #2ecc71;
  --warn: #f5a623;
  --shadow: 0 10px 30px rgba(0, 0, 0, .35);
  --radius: 10px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Code", "Fira Code", Consolas, "Courier New", monospace;
  --pdf-bg: #3a3d42;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #f4f5f8;
  --bg-2: #ffffff;
  --bg-3: #eceff4;
  --bg-hover: #e3e7ee;
  --border: #d9dee7;
  --text: #1b2130;
  --muted: #5e6a80;
  --shadow: 0 10px 30px rgba(20, 30, 60, .12);
  --pdf-bg: #d5d8de;
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.45;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3 { margin: 0 0 .4em; line-height: 1.2; }
h1 { font-size: 26px; letter-spacing: -.01em; }
h2 { font-size: 18px; }
h3 { font-size: 15px; }
p { margin: 0 0 .8em; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.mono { font-family: var(--mono); }
.hidden { display: none !important; }
.row { display: flex; align-items: center; gap: 8px; }
.grow { flex: 1; min-width: 0; }
.wrap { flex-wrap: wrap; }
.right { margin-left: auto; }
.ellipsis { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---- botones / inputs ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg-3); color: var(--text); cursor: pointer; white-space: nowrap;
  transition: background .12s, border-color .12s, transform .06s;
  user-select: none;
}
.btn:hover { background: var(--bg-hover); border-color: color-mix(in srgb, var(--border), var(--text) 15%); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.primary:hover { filter: brightness(1.1); }
.btn.danger { color: var(--danger); }
.btn.danger:hover { background: color-mix(in srgb, var(--danger) 15%, transparent); border-color: var(--danger); }
.btn.ghost { background: transparent; border-color: transparent; }
.btn.ghost:hover { background: var(--bg-hover); }
.btn.sm { padding: 5px 10px; font-size: 13px; border-radius: 7px; }
.btn.icon { padding: 6px; width: 32px; height: 32px; }
.btn svg { width: 16px; height: 16px; flex: none; }
/* estrella encendida: el documento ya está guardado como plantilla */
.btn.starred { color: var(--warn); }
.btn.starred svg { fill: currentColor; }
.input, select.input, textarea.input {
  width: 100%; padding: 9px 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); outline: none;
  transition: border-color .12s, box-shadow .12s;
}
.input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent); }
textarea.input { resize: vertical; min-height: 90px; font-family: var(--mono); font-size: 13px; }
label.field { display: block; margin-bottom: 12px; }
label.field > span { display: block; font-size: 12px; color: var(--muted); margin-bottom: 5px; font-weight: 500; }
.check { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.check input { width: 16px; height: 16px; accent-color: var(--accent); }
kbd {
  font-family: var(--mono); font-size: 11px; padding: 1px 6px; border-radius: 5px;
  border: 1px solid var(--border); background: var(--bg-3); color: var(--muted);
}

/* ---- tarjetas / layout ---- */
.card { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.container { max-width: 1040px; margin: 0 auto; padding: 24px 20px 60px; }
.topbar {
  display: flex; align-items: center; gap: 12px; height: 52px; padding: 0 14px;
  background: var(--bg-2); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 9px; font-weight: 600; letter-spacing: -.01em; }
.brand .logo {
  width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center;
  background: var(--accent); color: var(--accent-text); font-family: "Times New Roman", serif; font-size: 17px;
}
.badge {
  display: inline-flex; align-items: center; gap: 5px; padding: 2px 8px; border-radius: 999px;
  font-size: 12px; background: var(--bg-3); border: 1px solid var(--border); color: var(--muted);
}
.badge.ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, transparent); }
.badge.err { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, transparent); }
.badge.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, transparent); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); display: inline-block; }
.dot.on { background: var(--ok); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 25%, transparent); }
.dot.off { background: var(--danger); }

/* ---- avatares (redonditos de usuarios) ---- */
.avatars { display: flex; align-items: center; }
.avatar {
  width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center;
  font-size: 11px; font-weight: 700; color: #fff; border: 2px solid var(--bg-2);
  margin-left: -6px; cursor: pointer; position: relative; transition: transform .12s;
  text-shadow: 0 1px 1px rgba(0,0,0,.35); background: var(--muted);
}
.avatar:first-child { margin-left: 0; }
.avatar:hover { transform: translateY(-2px) scale(1.08); z-index: 2; }
.avatar.me { box-shadow: 0 0 0 2px var(--accent); }
.avatar.away { opacity: .55; }
.avatar.away::after {
  content: ""; position: absolute; right: -2px; bottom: -2px; width: 10px; height: 10px; border-radius: 50%;
  background: var(--warn); border: 2px solid var(--bg-2);
}
.avatar[data-tip]:hover::before {
  content: attr(data-tip); position: absolute; top: 36px; left: 50%; transform: translateX(-50%);
  background: var(--bg-3); border: 1px solid var(--border); color: var(--text); padding: 4px 8px;
  border-radius: 6px; font-size: 11px; font-weight: 500; white-space: nowrap; z-index: 10; text-shadow: none;
  box-shadow: var(--shadow);
}
.avatar.lg { width: 38px; height: 38px; font-size: 13px; margin-left: 0; }

/* ---- listas ---- */
.list { display: flex; flex-direction: column; gap: 8px; }
.item {
  display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: var(--radius);
  background: var(--bg-2); border: 1px solid var(--border); transition: border-color .12s, background .12s;
}
.item:hover { border-color: color-mix(in srgb, var(--accent) 50%, var(--border)); background: var(--bg-3); }
.item .title { font-weight: 600; }
.item .meta { font-size: 12px; color: var(--muted); }
.item .actions { display: flex; gap: 4px; opacity: .4; transition: opacity .12s; }
.item:hover .actions { opacity: 1; }
.file-icon {
  width: 36px; height: 36px; border-radius: 8px; display: grid; place-items: center; flex: none;
  background: color-mix(in srgb, var(--accent) 16%, transparent); color: var(--accent); font-family: serif; font-size: 16px; font-weight: 700;
}
.empty { padding: 34px; text-align: center; color: var(--muted); border: 1px dashed var(--border); border-radius: var(--radius); }

/* ---- modal / toast ---- */
.modal-back {
  position: fixed; inset: 0; background: rgba(0, 0, 0, .55); display: grid; place-items: center; z-index: 50;
  backdrop-filter: blur(2px);
}
.modal { width: min(480px, calc(100vw - 32px)); background: var(--bg-2); border: 1px solid var(--border); border-radius: 14px; padding: 22px; box-shadow: var(--shadow); }
.modal h2 { margin-bottom: 14px; }
.modal .buttons { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.toasts { position: fixed; bottom: 18px; right: 18px; display: flex; flex-direction: column; gap: 8px; z-index: 100; }
.toast {
  padding: 10px 14px; border-radius: 9px; background: var(--bg-3); border: 1px solid var(--border);
  box-shadow: var(--shadow); font-size: 13px; max-width: 360px; animation: toast-in .18s ease-out;
}
.toast.ok { border-color: var(--ok); }
.toast.err { border-color: var(--danger); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.spinner {
  width: 14px; height: 14px; border-radius: 50%; border: 2px solid color-mix(in srgb, currentColor 30%, transparent);
  border-top-color: currentColor; animation: spin .7s linear infinite; display: inline-block; flex: none;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Login ===== */
.login-page { min-height: 100%; display: grid; place-items: center; padding: 24px 16px;
  background:
    radial-gradient(900px 500px at 10% -10%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 60%),
    radial-gradient(700px 500px at 110% 110%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%),
    var(--bg);
}
.login-card { width: min(420px, 100%); padding: 30px 28px; }
.login-card .brand { margin-bottom: 18px; }
.login-card .brand .logo { width: 40px; height: 40px; font-size: 24px; border-radius: 11px; }
.login-card h1 { font-size: 22px; }
.error-box { color: var(--danger); background: color-mix(in srgb, var(--danger) 12%, transparent); border: 1px solid color-mix(in srgb, var(--danger) 40%, transparent); padding: 8px 12px; border-radius: 8px; font-size: 13px; margin-bottom: 12px; }
.course-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: -4px 0 14px; }
.chip { padding: 4px 10px; border-radius: 999px; border: 1px solid var(--border); background: var(--bg-3); font-size: 12px; cursor: pointer; }
.chip:hover { border-color: var(--accent); color: var(--accent); }
.recent { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--border); }
.footer-links { text-align: center; margin-top: 16px; font-size: 12px; color: var(--muted); }

/* ===== Panel del curso ===== */
.panel-grid { display: grid; grid-template-columns: 1fr 300px; gap: 20px; align-items: start; }
@media (max-width: 860px) { .panel-grid { grid-template-columns: 1fr; } }
.section-head { display: flex; align-items: center; gap: 10px; margin: 6px 0 12px; }
.section-head h2 { margin: 0; }
.online-list { display: flex; flex-direction: column; gap: 8px; }
.online-item { display: flex; align-items: center; gap: 10px; padding: 6px 8px; border-radius: 8px; cursor: pointer; }
.online-item:hover { background: var(--bg-3); }
.online-item .where { font-size: 12px; color: var(--muted); }
.search { max-width: 260px; }
.dropzone { border: 1px dashed var(--border); border-radius: 8px; padding: 14px; text-align: center; color: var(--muted); font-size: 12px; cursor: pointer; transition: border-color .12s, background .12s; }
.dropzone.over, .dropzone:hover { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); }
.file-row { display: flex; align-items: center; gap: 8px; padding: 6px 4px; font-size: 13px; border-bottom: 1px solid var(--border); }
.file-row:last-child { border-bottom: 0; }

/* ===== Editor ===== */
.editor-page { height: 100vh; display: grid; grid-template-rows: 48px 1fr; overflow: hidden; }
.editor-top { display: flex; align-items: center; gap: 10px; padding: 0 12px; background: var(--bg-2); border-bottom: 1px solid var(--border); min-width: 0; position: relative; }
.doc-title { font-weight: 600; max-width: 34vw; }
.doc-title[contenteditable] { outline: none; padding: 2px 6px; border-radius: 6px; border: 1px solid transparent; }
.doc-title[contenteditable]:hover { border-color: var(--border); }
/* al editar, el título se despliega sobre la cabecera a todo el ancho y con saltos de línea,
   para que un nombre largo se vea entero (en reposo va recortado con "…") */
.doc-title[contenteditable]:focus {
  border-color: var(--accent); background: var(--bg);
  position: absolute; left: 12px; right: 12px; top: 6px; z-index: 30;
  max-width: none; white-space: pre-wrap; overflow: visible; text-overflow: clip; overflow-wrap: anywhere;
  padding: 8px 10px; line-height: 1.35; box-shadow: var(--shadow);
}
.status { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); white-space: nowrap; }
.workspace { display: grid; grid-template-columns: 240px minmax(200px, var(--split, 45%)) 6px minmax(0, 1fr); min-height: 0; height: 100%; }
.workspace.no-files { grid-template-columns: 0 minmax(200px, var(--split, 45%)) 6px minmax(0, 1fr); }
.workspace.only-editor { grid-template-columns: 240px 1fr 0 0; }
.workspace.only-editor.no-files { grid-template-columns: 0 1fr 0 0; }
.workspace.only-pdf { grid-template-columns: 0 0 0 1fr; }
.workspace.no-files .pane-files, .workspace.only-pdf .pane-files,
.workspace.only-editor .pane-pdf, .workspace.only-editor .gutter,
.workspace.only-pdf .pane-editor, .workspace.only-pdf .gutter { display: none; }
.pane { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
/* columnas fijas: si un pane se oculta (display:none) los demás no deben desplazarse de columna */
.pane-files { grid-column: 1; } .pane-editor { grid-column: 2; } .gutter { grid-column: 3; } .pane-pdf { grid-column: 4; }
.gutter { background: var(--border); cursor: col-resize; transition: background .12s; }
.gutter:hover, .gutter.active { background: var(--accent); }
.editor-host { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.editor-host .cm-editor { flex: 1; height: 100%; font-size: 14px; }
.editor-host .cm-scroller { font-family: var(--mono); line-height: 1.55; }
.editor-host .cm-editor.cm-focused { outline: none; }
.cm-ySelectionInfo { font-family: var(--font) !important; font-size: 10px !important; padding: 1px 5px !important; border-radius: 4px 4px 4px 0 !important; opacity: 1 !important; transition: none !important; font-weight: 600; }
.cm-jump-flash { background: color-mix(in srgb, var(--accent) 35%, transparent) !important; transition: background .6s; }
.pane-bottom { border-top: 1px solid var(--border); background: var(--bg-2); max-height: 42%; display: flex; flex-direction: column; }
.pane-bottom-head { display: flex; align-items: center; gap: 8px; padding: 4px 10px; font-size: 12px; color: var(--muted); border-bottom: 1px solid var(--border); }
.log-list { overflow: auto; font-size: 12.5px; }
.log-line { display: flex; gap: 10px; padding: 5px 12px; border-bottom: 1px solid color-mix(in srgb, var(--border) 60%, transparent); cursor: pointer; }
.log-line:hover { background: var(--bg-3); }
.log-line .ln { font-family: var(--mono); color: var(--muted); min-width: 52px; }
.log-line.err .ln { color: var(--danger); }
.log-line.warn .ln { color: var(--warn); }
.raw-log { font-family: var(--mono); font-size: 11.5px; white-space: pre-wrap; padding: 10px 12px; margin: 0; color: var(--muted); overflow: auto; }

.pdf-bar { display: flex; align-items: center; gap: 6px; padding: 5px 10px; background: var(--bg-2); border-bottom: 1px solid var(--border); font-size: 12px; flex-wrap: wrap; }
.pdf-scroll { flex: 1; overflow: auto; background: var(--pdf-bg); position: relative; }
.pdf-pages { display: flex; flex-direction: column; align-items: center; gap: 14px; padding: 18px 12px; }
.pdf-page { background: #fff; box-shadow: 0 2px 12px rgba(0,0,0,.35); position: relative; --user-unit: 1; --total-scale-factor: calc(var(--scale-factor) * var(--user-unit)); --scale-round-x: 1px; --scale-round-y: 1px; }
.pdf-page canvas { display: block; }
/* capa de texto de pdf.js: texto transparente encima del canvas para poder seleccionar y copiar */
.pdf-page .textLayer { position: absolute; inset: 0; overflow: clip; line-height: 1; text-align: initial; letter-spacing: normal; word-spacing: normal; text-size-adjust: none; forced-color-adjust: none; transform-origin: 0 0; caret-color: CanvasText; color-scheme: only light; --min-font-size: 1; --text-scale-factor: calc(var(--total-scale-factor) * var(--min-font-size)); --min-font-size-inv: calc(1 / var(--min-font-size)); }
.pdf-page .textLayer span, .pdf-page .textLayer br { color: transparent; position: absolute; white-space: pre; cursor: text; transform-origin: 0 0; user-select: text; }
.pdf-page .textLayer > :not(.markedContent), .pdf-page .textLayer .markedContent span:not(.markedContent) { z-index: 1; --font-height: 0; font-size: calc(var(--text-scale-factor) * var(--font-height)); --scale-x: 1; --rotate: 0deg; transform: rotate(var(--rotate)) scaleX(var(--scale-x)) scale(var(--min-font-size-inv)); }
.pdf-page .textLayer .markedContent { display: contents; }
.pdf-page .textLayer span[role="img"] { user-select: none; cursor: default; }
.pdf-flash { position: absolute; left: 0; right: 0; background: color-mix(in srgb, var(--accent) 35%, transparent); pointer-events: none; z-index: 2; animation: pdfFlash 1.6s ease-out forwards; }
@keyframes pdfFlash { 0%, 50% { opacity: 1; } 100% { opacity: 0; } }
.pdf-page .textLayer ::selection { background: rgba(0, 90, 255, .3); color: transparent; }
.pdf-overlay { position: absolute; inset: 0; display: grid; place-items: center; color: #fff; text-align: center; pointer-events: none; padding: 20px; }
.pdf-overlay .box { background: rgba(0,0,0,.55); padding: 16px 20px; border-radius: 10px; max-width: 360px; pointer-events: auto; }
.pdf-scroll.busy::after { content: ""; position: sticky; top: 0; left: 0; display: block; height: 3px; background: linear-gradient(90deg, transparent, var(--accent), transparent); animation: bar 1s linear infinite; }
@keyframes bar { from { background-position: -200px 0; } to { background-position: 200px 0; } }

.user-list-pop { position: absolute; top: 44px; right: 12px; background: var(--bg-2); border: 1px solid var(--border); border-radius: 10px; box-shadow: var(--shadow); padding: 8px; min-width: 240px; z-index: 30; }

@media (max-width: 760px) {
  .workspace, .workspace.no-files, .workspace.only-editor, .workspace.only-editor.no-files { grid-template-columns: 0 1fr 0 0; }
  .workspace:not(.no-files):not(.only-pdf) { grid-template-columns: 1fr 0 0 0; }
  .workspace:not(.no-files):not(.only-pdf) .pane-editor { display: none; }
  .workspace:not(.only-pdf) .pane-pdf, .gutter { display: none; }
  .workspace.only-pdf { grid-template-columns: 0 0 0 1fr; }
  .doc-title { max-width: 30vw; }
  .hide-mobile { display: none !important; }
}

/* ===== Admin ===== */
.admin-tabs { display: flex; gap: 4px; margin-bottom: 18px; border-bottom: 1px solid var(--border); }
.admin-tabs button { background: none; border: 0; border-bottom: 2px solid transparent; padding: 10px 14px; color: var(--muted); cursor: pointer; font-weight: 500; }
.admin-tabs button.active { color: var(--text); border-bottom-color: var(--accent); }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th, .tbl td { text-align: left; padding: 10px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.tbl th { color: var(--muted); font-weight: 500; font-size: 12px; }
.tbl tr:hover td { background: var(--bg-3); }
.pw { font-family: var(--mono); letter-spacing: .05em; }
.pw.hidden-pw { filter: blur(4px); }
.pw:hover { filter: none; }
.stat { padding: 14px 16px; }
.stat .n { font-size: 26px; font-weight: 700; letter-spacing: -.02em; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 18px; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 700px) { .two { grid-template-columns: 1fr; } .tbl .opt { display: none; } }

/* botones que solo aplican a móvil / badges vacíos */
#layoutMobileBtn { display: none; }
@media (max-width: 760px) { #layoutMobileBtn { display: inline-flex; } }
.badge:empty { display: none; }

/* ---- compartir ---- */
.share-modal { width: min(560px, calc(100vw - 32px)); }
.share-row { display: flex; align-items: center; gap: 12px; padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg); }
.share-icon { width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; font-size: 18px; background: var(--bg-3); flex: none; }
.share-link { display: flex; gap: 8px; margin-top: 12px; }
.share-link .input { font-size: 12px; }
.badge-btn.ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 45%, var(--border)); }
.badge-btn.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, var(--border)); }
.avatar.owner { border-radius: 9px; }
.online-item { color: inherit; text-decoration: none; }
.online-item:hover { text-decoration: none; }

/* ---- panel de archivos del proyecto ---- */
.pane-files { background: var(--bg-2); border-right: 1px solid var(--border); overflow: auto; font-size: 13px; min-width: 0; }
.pane-files.dragover { outline: 2px dashed var(--accent); outline-offset: -4px; background: color-mix(in srgb, var(--accent) 8%, var(--bg-2)); }
.files-head { display: flex; align-items: center; gap: 2px; padding: 5px 6px; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--bg-2); z-index: 2; }
.files-head .btn.icon { width: 28px; height: 28px; font-size: 13px; }
.tree { padding: 6px 4px; }
.tree-item { display: flex; align-items: center; gap: 6px; padding: 4px 6px; border-radius: 6px; cursor: pointer; white-space: nowrap; color: var(--text); }
.tree-item:hover { background: var(--bg-3); }
.tree-item.active { background: color-mix(in srgb, var(--accent) 20%, transparent); }
.tree-item.selected { box-shadow: inset 2px 0 0 var(--accent); }
.tree-item .ico { width: 18px; text-align: center; flex: none; font-size: 13px; }
.tree-item .nm { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.tree-item .who { display: flex; gap: 2px; }
.tree-item .mini { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.tree-item .acts { display: none; gap: 2px; }
.tree-item:hover .acts { display: flex; }
.tree-item .acts button, .tree-item .acts a { background: none; border: 0; color: var(--muted); cursor: pointer; padding: 0 3px; font-size: 12px; line-height: 1; text-decoration: none; }
.tree-item .acts button:hover, .tree-item .acts a:hover { color: var(--text); }
.files-hint { padding: 10px 12px; border-top: 1px dashed var(--border); margin-top: 8px; }
.file-tab { font-size: 12px; padding: 3px 12px; border-bottom: 1px solid var(--border); background: var(--bg-2); color: var(--muted); }
.tree-item[draggable="true"] { cursor: grab; }
.tree-item.dragging { opacity: .45; }
.tree-item.drop-target { background: color-mix(in srgb, var(--accent) 22%, transparent); outline: 1.5px dashed var(--accent); outline-offset: -1.5px; }
.dropzone { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; text-align: center; padding: 28px 16px; border: 2px dashed var(--border); border-radius: 12px; background: var(--bg); color: var(--muted); cursor: pointer; transition: border-color .12s, background .12s; }
.dropzone:hover, .dropzone:focus-visible, .dropzone.over { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, var(--bg)); color: var(--text); outline: none; }
.dropzone .ico-svg { color: var(--accent); }
.dropzone.over * { pointer-events: none; }

/* ---- visor de imágenes en el panel central ---- */
.img-view { flex: 1; min-height: 0; display: flex; flex-direction: column; background: var(--bg); }
.img-view-bar { display: flex; align-items: center; gap: 8px; padding: 4px 10px; border-bottom: 1px solid var(--border); background: var(--bg-2); font-size: 12px; }
.img-view-body { flex: 1; min-height: 0; overflow: auto; display: flex; align-items: center; justify-content: center; padding: 16px; cursor: zoom-in;
  background-color: var(--bg); background-image: linear-gradient(45deg, var(--bg-3) 25%, transparent 25%), linear-gradient(-45deg, var(--bg-3) 25%, transparent 25%), linear-gradient(45deg, transparent 75%, var(--bg-3) 75%), linear-gradient(-45deg, transparent 75%, var(--bg-3) 75%); background-size: 20px 20px; background-position: 0 0, 0 10px, 10px -10px, -10px 0; }
.img-view-body img { max-width: 100%; max-height: 100%; object-fit: contain; box-shadow: var(--shadow); background: #fff; border-radius: 4px; }
.img-view-body.zoom { cursor: zoom-out; display: block; }
.img-view-body.zoom img { max-width: none; max-height: none; }
#filesBtn.active { background: var(--bg-hover); }

/* ---- plantillas ---- */
.tpl-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.tpl-card { border: 1px solid var(--border); border-radius: 10px; padding: 12px; background: var(--bg); cursor: pointer; transition: border-color .12s; }
.tpl-card:hover, .tpl-card.selected { border-color: var(--accent); }
.tpl-card.selected { box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 35%, transparent); }
.tpl-card .t { font-weight: 600; margin-bottom: 2px; }
.tpl-card pre { font-size: 10px; color: var(--muted); max-height: 70px; overflow: hidden; margin: 6px 0 0; font-family: var(--mono); white-space: pre-wrap; }

/* ---- iconos ---- */
.ico-svg { vertical-align: -3px; flex: none; }
[data-icon] { display: inline-flex; align-items: center; }
.btn .ico-svg, .badge .ico-svg { vertical-align: middle; }
.tree-item .ico { display: inline-flex; align-items: center; justify-content: center; color: var(--muted); }
.tree-item.active .ico { color: var(--accent); }
.status .ico-svg { vertical-align: -3px; }