/* ============================================================
   Hermeskiki — thème chaleureux sombre / clair
   ============================================================ */
:root {
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --mono: ui-monospace, "SFMono-Regular", "Cascadia Code", Menlo, Consolas, monospace;
  --radius: 14px;
  --sb-w: 288px;
  --chat-w: 768px;
  --accent: #c96442;
  --accent-h: #b5573a;
  --danger: #d9534f;
  --ok: #4caf7a;
  --warn: #e0a84a;
}
[data-theme="dark"] {
  --bg: #262624;
  --bg-2: #1f1e1d;
  --panel: #30302e;
  --panel-2: #3a3a37;
  --hover: rgba(255,255,255,.06);
  --border: rgba(255,255,255,.10);
  --border-2: rgba(255,255,255,.18);
  --text: #f5f4ef;
  --text-2: #c2c0b6;
  --text-3: #8e8c84;
  --user-bubble: #141413;
  --code-bg: #1a1a19;
  --shadow: 0 8px 30px rgba(0,0,0,.35);
}
[data-theme="light"] {
  --bg: #faf9f5;
  --bg-2: #f0eee6;
  --panel: #ffffff;
  --panel-2: #f3f1ea;
  --hover: rgba(0,0,0,.05);
  --border: rgba(0,0,0,.10);
  --border-2: rgba(0,0,0,.18);
  --text: #1f1e1d;
  --text-2: #4d4c48;
  --text-3: #85837b;
  --user-bubble: #f0eee6;
  --code-bg: #f5f3ec;
  --shadow: 0 8px 30px rgba(0,0,0,.10);
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: var(--font); background: var(--bg); color: var(--text);
  font-size: 15px; line-height: 1.55; -webkit-font-smoothing: antialiased;
  overflow: hidden;
}
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
input, textarea, select { font: inherit; color: inherit; }
svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.hidden { display: none !important; }
a { color: var(--accent); }
::selection { background: rgba(201,100,66,.35); }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 10px; border: 2px solid transparent; background-clip: padding-box; }
::-webkit-scrollbar-track { background: transparent; }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 9px; color: var(--text-2); transition: background .15s, color .15s;
}
.icon-btn:hover { background: var(--hover); color: var(--text); }
.btn-primary {
  background: var(--accent); color: #fff; border-radius: 10px; padding: 10px 16px; font-weight: 550;
  transition: background .15s;
}
.btn-primary:hover { background: var(--accent-h); }
.btn-primary.sm { padding: 7px 12px; font-size: 14px; }
.btn-ghost { border: 1px solid var(--border-2); border-radius: 10px; padding: 7px 12px; font-size: 14px; color: var(--text); }
.btn-ghost:hover { background: var(--hover); }
.btn-danger { background: var(--danger); color: #fff; border-radius: 10px; padding: 7px 12px; font-size: 14px; }

/* ---------------- Login ---------------- */
.login { position: fixed; inset: 0; display: grid; place-items: center; background: var(--bg); padding: 20px; }
.login-card { width: 100%; max-width: 360px; display: flex; flex-direction: column; gap: 12px; text-align: center; }
.login-logo { width: 56px; height: 56px; margin: 0 auto 6px; }
.login-title { font-family: var(--serif); font-weight: 400; font-size: 34px; margin: 0; }
.login-sub { color: var(--text-2); margin: 0 0 10px; }
.login-card input {
  padding: 12px 14px; border-radius: 12px; border: 1px solid var(--border-2); background: var(--panel); outline: none;
}
.login-card input:focus { border-color: var(--accent); }
.login-error { color: var(--danger); min-height: 1.4em; margin: 0; font-size: 14px; }

/* ---------------- Layout ---------------- */
.app { display: flex; height: 100vh; height: 100dvh; }
.sidebar {
  width: var(--sb-w); flex-shrink: 0; background: var(--bg-2); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; transition: margin-left .2s ease; z-index: 30;
}
.app.sb-collapsed .sidebar { margin-left: calc(-1 * var(--sb-w)); }
.sb-top { display: flex; align-items: center; justify-content: space-between; padding: 12px 10px 6px 14px; }
.sb-brand { display: flex; align-items: center; gap: 9px; font-family: var(--serif); font-size: 20px; }
.sb-logo { width: 26px; height: 26px; }
.sb-new {
  display: flex; align-items: center; gap: 10px; margin: 8px 10px 4px; padding: 8px 10px; border-radius: 10px;
  font-weight: 550; color: var(--text);
}
.sb-new:hover { background: var(--hover); }
.sb-new-ico { width: 26px; height: 26px; border-radius: 50%; background: var(--accent); color: #fff; display: grid; place-items: center; }
.sb-new-ico svg { width: 16px; height: 16px; stroke-width: 2.4; }
.sb-nav { display: flex; flex-direction: column; padding: 0 10px; gap: 1px; }
.sb-link { display: flex; align-items: center; gap: 12px; padding: 7px 12px; border-radius: 9px; color: var(--text-2); font-size: 14.5px; text-align: left; }
.sb-link:hover, .sb-link.active { background: var(--hover); color: var(--text); }
.sb-filter { display: flex; align-items: center; justify-content: space-between; padding: 16px 18px 4px 22px; font-size: 12.5px; color: var(--text-3); }
.sb-filter select { background: transparent; border: 0; color: var(--text-3); font-size: 12.5px; cursor: pointer; outline: none; }
.sb-filter select option { background: var(--panel); color: var(--text); }
.sb-sessions { flex: 1; overflow-y: auto; padding: 0 10px 10px; }
.sb-group { font-size: 12px; color: var(--text-3); padding: 12px 12px 4px; }
.sb-item {
  display: flex; align-items: center; gap: 6px; padding: 6px 6px 6px 12px; border-radius: 9px; cursor: pointer;
  color: var(--text-2); font-size: 14px; position: relative;
}
.sb-item:hover { background: var(--hover); color: var(--text); }
.sb-item.active { background: var(--panel-2); color: var(--text); }
.sb-item .t { flex: 1; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.sb-item .src { font-size: 10.5px; color: var(--text-3); border: 1px solid var(--border); border-radius: 6px; padding: 0 5px; }
.sb-item .more { opacity: 0; width: 26px; height: 26px; }
.sb-item:hover .more, .sb-item.active .more { opacity: 1; }
.sb-item .running { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); animation: pulse 1.2s infinite; }
.sb-empty { color: var(--text-3); font-size: 13.5px; padding: 12px; }
.sb-more { width: 100%; padding: 8px; color: var(--text-3); font-size: 13px; border-radius: 8px; }
.sb-more:hover { background: var(--hover); color: var(--text); }
.sb-bottom { border-top: 1px solid var(--border); padding: 10px 10px 10px 16px; display: flex; align-items: center; justify-content: space-between; }
.sb-bottom-actions { display: flex; gap: 2px; }
.sb-status { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--text-3); }
.sb-status .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-3); }
.sb-status.ok .dot { background: var(--ok); }
.sb-status.err .dot { background: var(--danger); }
.sb-backdrop { display: none; }

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; position: relative; }
.topbar { height: 52px; display: flex; align-items: center; gap: 6px; padding: 0 12px; flex-shrink: 0; }
#btn-open-sb { display: none; }
.app.sb-collapsed #btn-open-sb { display: inline-flex; }
.topbar-title {
  font-size: 14.5px; padding: 5px 10px; border-radius: 8px; max-width: 60%; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; color: var(--text);
}
.topbar-title:hover { background: var(--hover); }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.usage-pill { font-size: 12px; color: var(--text-3); border: 1px solid var(--border); border-radius: 20px; padding: 2px 10px; white-space: nowrap; }

.view { flex: 1; min-height: 0; }
.view-chat { display: flex; flex-direction: column; position: relative; }
.scroller { flex: 1; overflow-y: auto; scroll-behavior: auto; }
.messages { max-width: var(--chat-w); margin: 0 auto; padding: 12px 24px 40px; }

/* ---------------- Welcome ---------------- */
.welcome { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 22vh; padding: 0 20px; }
.welcome-logo { width: 40px; height: 40px; }
.welcome h1 { font-family: var(--serif); font-weight: 400; font-size: 40px; margin: 0; letter-spacing: -.01em; }
.view-chat.empty .composer-wrap { position: absolute; left: 0; right: 0; top: calc(22vh + 80px); }
.view-chat.empty .disclaimer { visibility: hidden; }

/* ---------------- Messages ---------------- */
.msg { margin: 22px 0; }
.msg-user { display: flex; flex-direction: column; align-items: flex-end; }
.bubble {
  background: var(--user-bubble); border-radius: 18px; padding: 10px 16px; max-width: 85%;
  white-space: pre-wrap; word-wrap: break-word; overflow-wrap: anywhere;
}
.msg-user .imgs { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; margin-bottom: 6px; }
.msg-user .imgs img { max-width: 200px; max-height: 200px; border-radius: 12px; cursor: zoom-in; border: 1px solid var(--border); }
.msg-actions { display: flex; gap: 2px; margin-top: 4px; opacity: 0; transition: opacity .15s; }
.msg:hover .msg-actions, .msg-actions.show { opacity: 1; }
.msg-actions .icon-btn { width: 30px; height: 30px; }
.msg-actions .icon-btn svg { width: 16px; height: 16px; }
.msg-meta { font-size: 12px; color: var(--text-3); align-self: center; margin-left: 6px; }

.msg-assistant { position: relative; }
.prose { font-family: var(--serif); font-size: 16.5px; line-height: 1.65; overflow-wrap: anywhere; }
.prose > *:first-child { margin-top: 0; }
.prose > *:last-child { margin-bottom: 0; }
.prose p { margin: 0 0 .85em; }
.prose h1, .prose h2, .prose h3, .prose h4 { font-family: var(--font); line-height: 1.3; margin: 1.3em 0 .5em; font-weight: 650; }
.prose h1 { font-size: 1.45em; } .prose h2 { font-size: 1.25em; } .prose h3 { font-size: 1.1em; }
.prose ul, .prose ol { padding-left: 1.5em; margin: 0 0 .85em; }
.prose li { margin: .25em 0; }
.prose li::marker { color: var(--text-3); }
.prose blockquote { border-left: 3px solid var(--border-2); margin: 0 0 .85em; padding: .1em 0 .1em 1em; color: var(--text-2); }
.prose hr { border: 0; border-top: 1px solid var(--border); margin: 1.5em 0; }
.prose table { border-collapse: collapse; margin: 0 0 1em; font-family: var(--font); font-size: 14px; display: block; overflow-x: auto; max-width: 100%; }
.prose th, .prose td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; }
.prose th { background: var(--panel-2); font-weight: 600; }
.prose img { max-width: 100%; border-radius: 10px; cursor: zoom-in; }
.prose :not(pre) > code {
  font-family: var(--mono); font-size: .84em; background: var(--code-bg); border: 1px solid var(--border);
  padding: .1em .35em; border-radius: 5px;
}
.codeblock { margin: 0 0 1em; border-radius: 12px; overflow: hidden; border: 1px solid var(--border); background: var(--code-bg); font-family: var(--font); }
.codeblock-head { display: flex; align-items: center; justify-content: space-between; padding: 5px 8px 5px 14px; font-size: 12px; color: var(--text-3); border-bottom: 1px solid var(--border); }
.codeblock-head button { display: flex; align-items: center; gap: 5px; font-size: 12px; color: var(--text-3); padding: 3px 7px; border-radius: 6px; }
.codeblock-head button:hover { background: var(--hover); color: var(--text); }
.codeblock-head svg { width: 14px; height: 14px; }
.codeblock pre { margin: 0; padding: 12px 14px; overflow-x: auto; }
.codeblock code { font-family: var(--mono); font-size: 13px; line-height: 1.55; background: none !important; padding: 0 !important; }
.cursor::after { content: ""; display: inline-block; width: .55em; height: 1em; background: var(--accent); border-radius: 50%; vertical-align: -.1em; margin-left: 3px; animation: pulse 1s infinite; }

/* Blocs d'étapes (outils, réflexion) */
.prose + .steps, .prose + .approval { margin-top: 12px; }
.steps { margin: 0 0 12px; display: flex; flex-direction: column; gap: 6px; }
.step { border: 1px solid var(--border); border-radius: 12px; background: var(--panel); font-size: 13.5px; overflow: hidden; }
.step-head { display: flex; align-items: center; gap: 9px; padding: 8px 12px; cursor: pointer; color: var(--text-2); user-select: none; }
.step-head:hover { color: var(--text); }
.step-head .label { flex: 1; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.step-head .label b { font-weight: 600; color: var(--text); }
.step-head .label code { font-family: var(--mono); font-size: 12px; color: var(--text-3); margin-left: 6px; }
.step-head .chev { transition: transform .15s; color: var(--text-3); }
.step.open .step-head .chev { transform: rotate(90deg); }
.step-body { display: none; padding: 0 12px 10px; }
.step.open .step-body { display: block; }
.step-body pre {
  margin: 6px 0 0; padding: 10px; background: var(--code-bg); border-radius: 8px; font-family: var(--mono); font-size: 12px;
  white-space: pre-wrap; word-break: break-word; max-height: 320px; overflow: auto; color: var(--text-2);
}
.step-body .k { font-size: 11.5px; color: var(--text-3); margin-top: 8px; text-transform: uppercase; letter-spacing: .04em; }
.step .st { width: 16px; height: 16px; display: grid; place-items: center; }
.step .st.running::before { content: ""; width: 12px; height: 12px; border: 2px solid var(--border-2); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
.step .st.done { color: var(--ok); } .step .st.failed { color: var(--danger); }
.step.thinking .step-body { font-style: italic; color: var(--text-2); white-space: pre-wrap; font-size: 13.5px; max-height: 360px; overflow: auto; }
.step.commentary { background: transparent; border-style: dashed; }
.step.commentary .step-body { display: block; padding-top: 8px; color: var(--text-2); }

.approval { border: 1px solid var(--warn); background: rgba(224,168,74,.08); border-radius: 12px; padding: 12px 14px; margin: 0 0 12px; font-size: 14px; }
.approval h4 { margin: 0 0 6px; font-size: 14px; display: flex; gap: 8px; align-items: center; color: var(--warn); }
.approval pre { margin: 6px 0 10px; padding: 9px; background: var(--code-bg); border-radius: 8px; font-family: var(--mono); font-size: 12.5px; white-space: pre-wrap; word-break: break-word; }
.approval .btns { display: flex; gap: 8px; flex-wrap: wrap; }
.approval.resolved { opacity: .65; border-color: var(--border); }

.err-box { border: 1px solid var(--danger); color: var(--danger); background: rgba(217,83,79,.08); border-radius: 12px; padding: 10px 14px; font-size: 14px; margin: 6px 0 0; }
.notice { color: var(--text-3); font-size: 13px; font-style: italic; margin-top: 6px; }
.typing { display: inline-flex; gap: 5px; padding: 6px 0; }
.typing i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: bounce 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: .15s; } .typing i:nth-child(3) { animation-delay: .3s; }

/* ---------------- Composer ---------------- */
.composer-wrap { padding: 0 20px 10px; flex-shrink: 0; }
.composer {
  max-width: var(--chat-w); margin: 0 auto; background: var(--panel); border: 1px solid var(--border);
  border-radius: 20px; padding: 12px 12px 10px 14px; box-shadow: var(--shadow); transition: border-color .15s;
}
.composer:focus-within { border-color: var(--border-2); }
.composer.drag { border-color: var(--accent); border-style: dashed; }
.composer textarea {
  width: 100%; border: 0; outline: none; background: transparent; resize: none; max-height: 40vh; min-height: 26px;
  font-size: 15.5px; line-height: 1.5; padding: 2px 2px 8px;
}
.composer textarea::placeholder { color: var(--text-3); }
.composer-bar { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.composer-left, .composer-right { display: flex; align-items: center; gap: 6px; }
.composer-left .icon-btn { border: 1px solid var(--border); cursor: pointer; }
.chip { display: inline-flex; align-items: center; gap: 6px; height: 34px; padding: 0 10px; border-radius: 9px; font-size: 13.5px; color: var(--text-2); }
.chip:hover { background: var(--hover); color: var(--text); }
.chip.on { color: var(--accent); }
.chip svg { width: 15px; height: 15px; }
.send-btn { width: 34px; height: 34px; border-radius: 10px; background: var(--accent); color: #fff; display: grid; place-items: center; transition: background .15s, opacity .15s; }
.send-btn:hover { background: var(--accent-h); }
.send-btn:disabled { opacity: .4; cursor: default; background: var(--accent); }
.send-btn svg { stroke-width: 2.4; }
.send-btn.stop { background: var(--text); color: var(--bg); }
.send-btn.stop svg { fill: currentColor; stroke: none; }
.attachments { display: flex; gap: 8px; flex-wrap: wrap; }
.attachments:not(:empty) { margin-bottom: 10px; }
.att { position: relative; width: 64px; height: 64px; border-radius: 10px; overflow: hidden; border: 1px solid var(--border); }
.att img { width: 100%; height: 100%; object-fit: cover; }
.att button { position: absolute; top: 3px; right: 3px; width: 20px; height: 20px; border-radius: 50%; background: rgba(0,0,0,.65); color: #fff; display: grid; place-items: center; }
.att button svg { width: 12px; height: 12px; stroke-width: 2.6; }
.disclaimer { text-align: center; font-size: 12px; color: var(--text-3); margin: 8px 0 0; }
.model-picker { position: relative; }
.scroll-bottom {
  position: absolute; left: 50%; transform: translateX(-50%); bottom: 150px; width: 34px; height: 34px; border-radius: 50%;
  background: var(--panel); border: 1px solid var(--border-2); display: grid; place-items: center; box-shadow: var(--shadow); z-index: 5;
}

/* ---------------- Menus / modales ---------------- */
.menu {
  position: absolute; background: var(--panel); border: 1px solid var(--border-2); border-radius: 12px;
  box-shadow: var(--shadow); padding: 5px; min-width: 200px; z-index: 100; max-height: 60vh; overflow-y: auto;
}
#model-menu { bottom: 42px; right: 0; }
.menu.ctx { position: fixed; }
.menu-item { display: flex; align-items: center; gap: 10px; width: 100%; padding: 8px 10px; border-radius: 8px; font-size: 14px; text-align: left; color: var(--text); }
.menu-item:hover { background: var(--hover); }
.menu-item.danger { color: var(--danger); }
.menu-item .sub { color: var(--text-3); font-size: 12px; margin-left: auto; }
.menu-item.sel::after { content: "✓"; margin-left: auto; color: var(--accent); }
.menu-sep { height: 1px; background: var(--border); margin: 4px 0; }
.menu-label { font-size: 11.5px; color: var(--text-3); padding: 6px 10px 2px; }

.modal { position: fixed; inset: 0; background: rgba(0,0,0,.5); display: grid; place-items: center; z-index: 200; padding: 20px; }
.modal-card { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; width: 100%; max-width: 520px; padding: 20px 22px; box-shadow: var(--shadow); max-height: 90vh; overflow-y: auto; }
.modal-card h3 { margin: 0 0 14px; font-size: 18px; font-weight: 600; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }
.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; font-size: 13.5px; color: var(--text-2); }
.field input, .field textarea, .field select {
  background: var(--bg); border: 1px solid var(--border-2); border-radius: 10px; padding: 9px 11px; outline: none; color: var(--text); font-size: 14.5px;
}
.field textarea { min-height: 110px; resize: vertical; font-family: var(--font); }
.field input:focus, .field textarea:focus { border-color: var(--accent); }
.field small { color: var(--text-3); }
.row { display: flex; gap: 10px; } .row > * { flex: 1; }

.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: 9px 16px; border-radius: 10px; font-size: 14px; z-index: 300; box-shadow: var(--shadow); }
.lightbox { position: fixed; inset: 0; background: rgba(0,0,0,.85); z-index: 250; display: grid; place-items: center; cursor: zoom-out; padding: 20px; }
.lightbox img { max-width: 100%; max-height: 100%; border-radius: 8px; }

/* ---------------- Pages ---------------- */
.view-page { overflow-y: auto; }
.page { max-width: 820px; margin: 0 auto; padding: 20px 24px 60px; }
.page h2 { font-family: var(--serif); font-weight: 400; font-size: 30px; margin: 10px 0 6px; }
.page-head { display: flex; align-items: center; justify-content: space-between; }
.page-sub { color: var(--text-2); margin: 0 0 18px; font-size: 14.5px; }
.search-box { display: flex; align-items: center; gap: 10px; background: var(--panel); border: 1px solid var(--border-2); border-radius: 12px; padding: 0 14px; margin: 14px 0 10px; }
.search-box input { flex: 1; border: 0; outline: none; background: transparent; padding: 11px 0; font-size: 15px; }
.search-box svg { color: var(--text-3); }
.search-opts { font-size: 13px; color: var(--text-3); margin-bottom: 10px; }
.search-results .res { display: block; width: 100%; text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); }
.search-results .res:hover { background: var(--hover); }
.search-results .res .t { font-weight: 550; }
.search-results .res .p { color: var(--text-3); font-size: 13px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.cards { display: flex; flex-direction: column; gap: 10px; }
.cards.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px; }
.card.click { cursor: pointer; transition: border-color .15s; }
.card.click:hover { border-color: var(--border-2); }
.card-head { display: flex; align-items: center; gap: 10px; }
.card-title { font-weight: 600; flex: 1; overflow: hidden; text-overflow: ellipsis; }
.card-sub { color: var(--text-2); font-size: 13.5px; margin-top: 4px; }
.card-meta { color: var(--text-3); font-size: 12.5px; margin-top: 8px; display: flex; gap: 14px; flex-wrap: wrap; }
.card-actions { display: flex; gap: 6px; margin-top: 12px; flex-wrap: wrap; }
.badge { font-size: 11.5px; padding: 1px 8px; border-radius: 20px; border: 1px solid var(--border-2); color: var(--text-2); white-space: nowrap; }
.badge.ok { color: var(--ok); border-color: var(--ok); }
.badge.warn { color: var(--warn); border-color: var(--warn); }
.badge.err { color: var(--danger); border-color: var(--danger); }
.empty-state { color: var(--text-3); text-align: center; padding: 40px 0; }

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes bounce { 0%,80%,100% { transform: translateY(0); opacity: .5; } 40% { transform: translateY(-5px); opacity: 1; } }

/* ---------------- Mobile ---------------- */
@media (max-width: 820px) {
  .sidebar { position: fixed; top: 0; bottom: 0; left: 0; margin-left: calc(-1 * var(--sb-w)); box-shadow: var(--shadow); }
  .app.sb-open .sidebar { margin-left: 0; }
  .app.sb-open .sb-backdrop { display: block; position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 25; }
  #btn-open-sb { display: inline-flex !important; }
  #btn-collapse { display: none; }
  .messages { padding: 8px 14px 30px; }
  .composer-wrap { padding: 0 10px calc(8px + env(safe-area-inset-bottom)); }
  .welcome { margin-top: 16vh; }
  .welcome h1 { font-size: 32px; }
  .view-chat.empty .composer-wrap { position: static; }
  .view-chat.empty .scroller { display: flex; flex-direction: column; justify-content: center; }
  .view-chat.empty .welcome { margin-top: 0; }
  .prose { font-size: 16px; }
  .bubble { max-width: 92%; }
  .usage-pill { display: none; }
  .msg-actions { opacity: 1; }
  .chip span { display: none; }
  #model-label { display: inline; max-width: 110px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
}

/* ---------------- Double authentification ---------------- */
.code-input { text-align: center; font-family: var(--mono); font-size: 24px !important; letter-spacing: .35em; }
.login-links { display: flex; justify-content: space-between; gap: 10px; }
.link-btn { color: var(--text-2); font-size: 13.5px; text-decoration: underline; text-underline-offset: 3px; }
.link-btn:hover { color: var(--text); }
.sec-box { border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; margin: 4px 0 12px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.sec-box .grow { flex: 1; min-width: 180px; font-size: 14px; }
.sec-box .grow small { display: block; color: var(--text-3); }
.qr-wrap { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; margin: 6px 0 14px; }
.qr { background: #fff; padding: 10px; border-radius: 12px; line-height: 0; }
.qr img, .qr svg { width: 180px; height: 180px; }
.secret-txt { font-family: var(--mono); font-size: 13px; word-break: break-all; background: var(--code-bg); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; margin-top: 6px; user-select: all; }
.steps-list { margin: 0 0 12px; padding-left: 1.2em; color: var(--text-2); font-size: 14px; }
.steps-list li { margin: 4px 0; }
.recovery-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px 14px; font-family: var(--mono); font-size: 15px; background: var(--code-bg); border: 1px solid var(--border); border-radius: 10px; padding: 12px 16px; margin: 8px 0; }
.warn-txt { color: var(--warn); font-size: 13.5px; }

/* ---------------- Fichiers joints / téléchargeables ---------------- */
.att-file { position: relative; display: flex; align-items: center; gap: 10px; height: 64px; min-width: 200px; max-width: 280px; padding: 0 30px 0 10px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg); overflow: hidden; }
.att-file.err { border-color: var(--danger); }
.att-file > button { position: absolute; top: 4px; right: 4px; width: 20px; height: 20px; border-radius: 50%; background: var(--panel-2); color: var(--text-2); display: grid; place-items: center; }
.att-file > button svg { width: 12px; height: 12px; stroke-width: 2.6; }
.att-file .bar { position: absolute; left: 0; bottom: 0; height: 3px; background: var(--accent); transition: width .15s; }
.fi { flex-shrink: 0; width: 38px; height: 38px; border-radius: 8px; background: var(--accent); color: #fff; font: 700 10.5px/38px var(--font); text-align: center; letter-spacing: .02em; }
.fn { display: flex; flex-direction: column; min-width: 0; line-height: 1.3; }
.fn b { font-weight: 550; font-size: 13.5px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.fn small { color: var(--text-3); font-size: 12px; }
.file-chip { display: inline-flex; align-items: center; gap: 10px; padding: 8px 14px 8px 8px; margin: 2px 0; border: 1px solid var(--border); border-radius: 12px; background: var(--panel); color: var(--text); text-decoration: none; max-width: 100%; font-family: var(--font); cursor: pointer; vertical-align: middle; }
.file-chip:hover { border-color: var(--border-2); background: var(--panel-2); }
.msg-user .files { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; margin-bottom: 6px; max-width: 85%; }
.prose code.path-link { cursor: pointer; text-decoration: underline dotted; text-underline-offset: 3px; }
.prose code.path-link:hover { color: var(--accent); }
.prose code.path-link::after { content: " ⤓"; color: var(--text-3); }