:root {
  --bg: #ffffff;
  --bg2: #f4f4f4;
  --panel: #ffffff;
  --line: #d8d8d8;
  --text: #000000;
  --muted: #5a5a5a;
  --accent: #000000;
  --accent2: #6b6b6b;
  --danger: #b00020;
  --link: #0645ad;
  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  --sans: system-ui, -apple-system, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 var(--serif);
}
[hidden] { display: none !important; }
a { color: var(--link); }
a:hover { color: #000000; }
h1, h2, h3, h4, h5 { font-weight: normal; line-height: 1.25; letter-spacing: .01em; }
h1 { font-size: 1.9rem; margin: .2em 0 .4em; }
h2 { font-size: 1.4rem; color: var(--accent); }
.muted { color: var(--muted); }
.error { color: var(--danger); min-height: 1.4em; margin: .3em 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--accent); color: #000; padding: .5em 1em; z-index: 100; }
.skip:focus { left: 0; }

/* boutons & champs */
.btn {
  font: 14px var(--sans); background: var(--bg2); color: var(--text); border: 1px solid var(--line);
  padding: .55em 1em; border-radius: 4px; cursor: pointer; text-decoration: none; display: inline-block;
}
.btn:hover { border-color: #000; background: #f0f0f0; }
.btn.small { padding: .35em .8em; }
.btn.primary { background: #000; border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: #333; }
.btn.danger { border-color: #b00020; color: #b00020; }
.btn.danger:hover { background: #fdecee; }
input, textarea, select {
  font: 15px var(--sans); background: #f0f0f0; color: var(--text); border: 1px solid var(--line);
  border-radius: 4px; padding: .5em .65em; width: 100%;
}
textarea { font-family: ui-monospace, Consolas, monospace; font-size: 14px; min-height: 12em; resize: vertical; line-height: 1.5; }
label { display: block; font: 13px var(--sans); color: var(--muted); margin: .9em 0 .25em; text-transform: uppercase; letter-spacing: .06em; }
.row { display: flex; gap: .6em; flex-wrap: wrap; align-items: center; }
.row > * { flex: 0 0 auto; }
.row > .grow { flex: 1 1 260px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 .8em; }

/* connexion */
#login { min-height: 100vh; display: grid; place-items: center; padding: 1em; }
.login-card { background: var(--panel); border: 1px solid var(--line); padding: 2em; width: min(380px, 100%); border-radius: 6px; box-shadow: 0 10px 40px #000a; }
.login-card h1 { text-align: center; color: var(--accent); }
.login-card p { text-align: center; margin: 0 0 1em; }
.login-card .btn { width: 100%; margin-top: .6em; }

/* barre du haut */
.topbar { display: flex; gap: 1em; align-items: center; padding: .6em 1.2em; border-bottom: 1px solid var(--line); background: #f0f0f0cc; position: sticky; top: 0; z-index: 20; flex-wrap: wrap; }
.brand { font-size: 1.35rem; color: var(--accent); text-decoration: none; letter-spacing: .08em; }
.topbar nav { display: flex; gap: 1em; font-family: var(--sans); font-size: 14px; }
.topbar nav a { text-decoration: none; color: var(--muted); padding: .3em 0; border-bottom: 2px solid transparent; }
.topbar nav a:hover, .topbar nav a.active { color: var(--text); border-color: var(--accent); }
#search-form { margin-left: auto; flex: 1 1 200px; max-width: 320px; }
.banner { background: #e8e8e8; border-bottom: 1px solid var(--accent2); padding: .5em 1.2em; display: flex; gap: 1em; align-items: center; justify-content: space-between; flex-wrap: wrap; font: 14px var(--sans); }

/* mise en page */
.workspace { display: flex; min-height: calc(100vh - 60px); outline: none; }
#timeline-view { flex: 1; min-width: 0; padding: 1em 1.2em; display: flex; flex-direction: column; height: calc(100vh - 60px); }
#page-view { flex: 1; min-width: 0; padding: 1.5em clamp(1em, 4vw, 3em); max-width: 900px; margin: 0 auto; }
#panel { width: min(440px, 100%); border-left: 1px solid var(--line); background: var(--panel); padding: 1.2em 1.4em 3em; overflow-y: auto; max-height: calc(100vh - 60px); position: sticky; top: 60px; align-self: flex-start; }
.toolbar { display: flex; gap: .4em; margin-bottom: .6em; align-items: center; }
.spacer { flex: 1; }
.hint { font: 13px var(--sans); }

/* frise */
.tl-scroll { flex: 1 1 0; min-height: 0; overflow-y: auto; overflow-x: auto; border: 1px solid var(--line); background: #ffffff; border-radius: 4px; }
.tl-scroll svg { display: block; }
.tl-scroll text { font-family: var(--serif); fill: var(--text); }
.axis { stroke: var(--accent2); stroke-width: 2; }
.tick { stroke: var(--accent2); }
.tick-label { font-size: 11px; fill: var(--muted) !important; font-family: var(--sans) !important; }
.stem { stroke: var(--accent2); stroke-width: 1; }
.dot { fill: var(--bg); stroke: var(--accent); stroke-width: 2; }
.ev { cursor: pointer; outline: none; }
.ev .box { fill: #ffffff; stroke: var(--line); }
.ev .t { font-size: 13px; }
.ev .d { font-size: 11px; fill: var(--muted) !important; }
.ev:hover .box, .ev:focus-visible .box { stroke: var(--accent); }
.ev:hover .dot, .ev:focus-visible .dot { fill: var(--accent); }
.ev.sel .box { stroke: var(--accent); fill: #e8e8e8; }
.ev.sel .dot { fill: var(--accent); }
.ev.demo .box { stroke-dasharray: 4 3; }
.empty { padding: 2em; color: var(--muted); }

/* contenu markdown */
.md { overflow-wrap: anywhere; }
.md p { margin: .7em 0; }
.md h2, .md h3, .md h4, .md h5, .md h6 { margin: 1.1em 0 .4em; color: var(--accent); }
.md ul, .md ol { padding-left: 1.4em; }
.md blockquote { margin: .8em 0; padding: .1em 1em; border-left: 3px solid var(--accent2); color: #333333; font-style: italic; }
.md code { font: 13px ui-monospace, monospace; background: #f0f0f0; padding: .1em .35em; border-radius: 3px; }
.md pre { background: #f0f0f0; padding: .8em; overflow-x: auto; border-radius: 4px; }
.md pre code { padding: 0; background: none; }
.md hr { border: 0; border-top: 1px solid var(--line); margin: 1.2em 0; }
a.wikilink { text-decoration-style: dotted; text-underline-offset: 3px; }
.wikilink.dead { color: var(--danger); border-bottom: 1px dotted var(--danger); cursor: help; }
.preview { border: 1px dashed var(--line); padding: .3em .9em; margin-top: .5em; border-radius: 4px; min-height: 2em; }

/* divers */
.badge { font: 11px var(--sans); text-transform: uppercase; letter-spacing: .06em; padding: .15em .6em; border-radius: 99px; border: 1px solid var(--accent2); color: var(--accent); margin-left: .4em; vertical-align: middle; white-space: nowrap; }
.badge.warn { border-color: var(--danger); color: #b00020; }
.meta { font: 13px var(--sans); color: var(--muted); margin: .2em 0 1em; }
.chips { display: flex; gap: .4em; flex-wrap: wrap; margin: .5em 0; }
.chip { font: 13px var(--sans); border: 1px solid var(--line); padding: .2em .7em; border-radius: 99px; text-decoration: none; background: var(--bg2); }
.chip:hover { border-color: var(--accent); }
.list { list-style: none; padding: 0; margin: 1em 0; }
.list li { border-bottom: 1px solid var(--line); padding: .6em 0; }
.list .sub { font: 13px var(--sans); color: var(--muted); }
.list mark { background: #ffe97a; color: #000; padding: 0 .15em; border-radius: 2px; }
.card { border: 1px solid var(--line); background: var(--panel); padding: 1em 1.3em; border-radius: 6px; margin: 1em 0; }
.panel-actions { display: flex; gap: .5em; margin: 1.2em 0 0; flex-wrap: wrap; }
.close { float: right; }
#toast { position: fixed; bottom: 1em; left: 50%; transform: translateX(-50%); background: #000; color: #fff; font: 14px var(--sans); padding: .6em 1.2em; border-radius: 4px; opacity: 0; pointer-events: none; transition: opacity .25s; z-index: 200; }
#toast.show { opacity: 1; }
#toast.err { background: var(--danger); }

@media (max-width: 860px) {
  .workspace { display: block; }
  #panel { position: fixed; inset: 0; width: 100%; max-height: none; z-index: 50; border: 0; padding-top: 1em; }
  .grid2 { grid-template-columns: 1fr; }
  #search-form { max-width: none; order: 5; flex-basis: 100%; }
}