/* ==========================================================================
   Gaagii — design system
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 22px;

  --sidebar-w: 292px;
  --thread-max: 780px;

  --dur-fast: 120ms;
  --dur: 200ms;
  --ease: cubic-bezier(.22,.61,.36,1);

  --accent: #6366f1;
  --accent-2: #8b5cf6;
  --accent-ink: #ffffff;
}

/* --- Thème sombre (défaut) ------------------------------------------- */
html[data-theme="dark"] {
  --bg: #0a0b0f;
  --bg-soft: #0e1016;
  --panel: #12141b;
  --panel-2: #171a23;
  --panel-3: #1e222c;
  --border: #262b36;
  --border-soft: #1c212b;
  --text: #e9ecf3;
  --text-dim: #a2aab9;
  --text-mute: #6b7484;
  --shadow: 0 12px 32px -12px rgba(0,0,0,.7);
  --shadow-lg: 0 32px 80px -24px rgba(0,0,0,.85);
  --user-bubble: #232936;
  --code-bg: #0c0e13;
  --scroll: #2c3240;
  --danger: #f0616d;
  --ok: #34d399;
  --warn: #fbbf24;
  --hover: rgba(255,255,255,.045);
  --hover-strong: rgba(255,255,255,.08);
}

/* --- Thème clair ------------------------------------------------------ */
html[data-theme="light"] {
  --bg: #f7f8fb;
  --bg-soft: #ffffff;
  --panel: #ffffff;
  --panel-2: #f3f4f8;
  --panel-3: #e9ebf2;
  --border: #e2e5ed;
  --border-soft: #edeff5;
  --text: #14161c;
  --text-dim: #5a6070;
  --text-mute: #8b91a1;
  --shadow: 0 10px 30px -14px rgba(20,24,40,.28);
  --shadow-lg: 0 28px 70px -22px rgba(20,24,40,.32);
  --user-bubble: #eceefb;
  --code-bg: #f6f7fb;
  --scroll: #cdd2de;
  --danger: #dc2b3c;
  --ok: #0f9d63;
  --warn: #b45309;
  --hover: rgba(15,20,40,.04);
  --hover-strong: rgba(15,20,40,.07);
}

/* --- Accents ---------------------------------------------------------- */
html[data-accent="indigo"]  { --accent: #6366f1; --accent-2: #8b5cf6; }
html[data-accent="violet"]  { --accent: #8b5cf6; --accent-2: #d946ef; }
html[data-accent="emerald"] { --accent: #10b981; --accent-2: #14b8a6; }
html[data-accent="sky"]     { --accent: #0ea5e9; --accent-2: #6366f1; }
html[data-accent="amber"]   { --accent: #f59e0b; --accent-2: #f97316; --accent-ink: #241a03; }
html[data-accent="rose"]    { --accent: #f43f5e; --accent-2: #ec4899; }

/* ========================================================================== */

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--app-font-size, 15px);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow: hidden;
}

.sprite { display: none; }

.icon {
  width: 18px; height: 18px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon.chev { width: 14px; height: 14px; opacity: .6; }

button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, textarea, select { font: inherit; color: inherit; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

::selection { background: color-mix(in srgb, var(--accent) 35%, transparent); }

/* --- Scrollbars ------------------------------------------------------- */
* { scrollbar-width: thin; scrollbar-color: var(--scroll) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--scroll);
  border: 3px solid transparent;
  background-clip: content-box;
  border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover { background: color-mix(in srgb, var(--scroll) 70%, var(--text)); background-clip: content-box; }

/* ==========================================================================
   Structure
   ========================================================================== */

.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  height: 100dvh;
  transition: grid-template-columns var(--dur) var(--ease);
}
.app.collapsed { grid-template-columns: 0 minmax(0, 1fr); }
/* visibility:hidden retire aussi le panneau de l'ordre de tabulation ;
   le bouton de la barre superieure, lui, reste toujours accessible. */
.app.collapsed .sidebar { opacity: 0; pointer-events: none; visibility: hidden; border-right-color: transparent; }

/* ==========================================================================
   Sidebar
   ========================================================================== */

.sidebar {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--bg-soft);
  border-right: 1px solid var(--border-soft);
  overflow: hidden;
  transition: opacity var(--dur) var(--ease), visibility var(--dur);
}

.sidebar-head {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 12px 10px 14px;
}

.brand {
  display: flex; align-items: center; gap: 10px;
  flex: 1; min-width: 0;
  color: inherit; text-decoration: none;
}
.brand:hover { text-decoration: none; }
.brand-mark { display: grid; place-items: center; color: var(--accent); }
.brand-logo { width: 30px; height: 30px; border-radius: 9px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; min-width: 0; }
.brand-text strong { font-size: 15px; letter-spacing: -.01em; }
.brand-text small { font-size: 11px; color: var(--text-mute); }

.btn-new {
  display: flex; align-items: center; gap: 10px;
  margin: 6px 12px 10px;
  padding: 11px 13px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-ink);
  font-weight: 600; font-size: 13.5px;
  box-shadow: 0 8px 20px -12px color-mix(in srgb, var(--accent) 90%, transparent);
  transition: transform var(--dur-fast) var(--ease), filter var(--dur-fast);
}
.btn-new:hover { filter: brightness(1.08); }
.btn-new:active { transform: scale(.985); }
.btn-new span { flex: 1; text-align: left; }
.btn-new kbd {
  font-family: var(--font-sans); font-size: 10px; font-weight: 600;
  padding: 2px 6px; border-radius: 6px;
  background: rgba(255,255,255,.18);
  color: inherit; opacity: .9;
}

.search-wrap {
  position: relative;
  display: flex; align-items: center; gap: 8px;
  margin: 0 12px 8px;
  padding: 0 10px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--border-soft);
  color: var(--text-mute);
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.search-wrap:focus-within {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent);
}
.search-wrap .icon { width: 15px; height: 15px; }
.search-wrap input {
  flex: 1; min-width: 0;
  border: none; outline: none; background: none;
  padding: 9px 0; color: var(--text); font-size: 13.5px;
}
.search-wrap input::-webkit-search-cancel-button { display: none; }

.conv-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px 8px 12px;
}

.conv-group-label {
  padding: 12px 8px 5px;
  font-size: 11px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  color: var(--text-mute);
}

.conv-item {
  position: relative;
  display: flex; align-items: center; gap: 9px;
  width: 100%;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  text-align: left;
  transition: background var(--dur-fast), color var(--dur-fast);
}
.conv-item:hover { background: var(--hover); color: var(--text); }
.conv-item.active { background: var(--panel-3); color: var(--text); }
.conv-item.active::before {
  content: ""; position: absolute; left: 0; top: 50%; translate: 0 -50%;
  width: 3px; height: 18px; border-radius: 0 3px 3px 0; background: var(--accent);
}
.conv-body { flex: 1; min-width: 0; }
.conv-name {
  font-size: 13.5px; font-weight: 500;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.conv-meta {
  font-size: 11.5px; color: var(--text-mute);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.conv-actions { display: none; gap: 2px; }
.conv-item:hover .conv-actions { display: flex; }
.conv-item .icon-btn { width: 26px; height: 26px; }
.conv-item .icon-btn .icon { width: 14px; height: 14px; }

.list-empty {
  padding: 28px 12px; text-align: center; color: var(--text-mute); font-size: 13px;
}

.sidebar-foot {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 12px;
  border-top: 1px solid var(--border-soft);
}
.provider-pill {
  display: flex; align-items: center; gap: 8px;
  flex: 1; min-width: 0;
  padding: 7px 10px;
  border-radius: 99px;
  background: var(--panel);
  border: 1px solid var(--border-soft);
  font-size: 12.5px; color: var(--text-dim);
  transition: border-color var(--dur-fast), color var(--dur-fast);
}
.provider-pill:hover { border-color: var(--border); color: var(--text); }
.provider-pill-text { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dot { width: 7px; height: 7px; border-radius: 99px; background: var(--text-mute); flex: none; }
.dot.on { background: var(--ok); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 22%, transparent); }
.dot.off { background: var(--warn); box-shadow: 0 0 0 3px color-mix(in srgb, var(--warn) 20%, transparent); }

/* ==========================================================================
   Boutons
   ========================================================================== */

.icon-btn {
  display: grid; place-items: center;
  width: 34px; height: 34px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  transition: background var(--dur-fast), color var(--dur-fast), transform var(--dur-fast);
}
.icon-btn:hover { background: var(--hover-strong); color: var(--text); }
.icon-btn:active { transform: scale(.94); }
.icon-btn.ghost:hover { background: var(--hover); }
.icon-btn.tiny { width: 26px; height: 26px; }
.icon-btn.tiny .icon { width: 14px; height: 14px; }
.icon-btn.danger:hover { background: color-mix(in srgb, var(--danger) 16%, transparent); color: var(--danger); }
.icon-btn.stop { color: var(--danger); }
.icon-btn.stop:hover { background: color-mix(in srgb, var(--danger) 16%, transparent); }

.chip {
  display: flex; align-items: center; gap: 7px;
  padding: 7px 11px;
  border-radius: 99px;
  background: var(--panel);
  border: 1px solid var(--border-soft);
  color: var(--text-dim);
  font-size: 12.5px; font-weight: 500;
  max-width: 260px;
  transition: border-color var(--dur-fast), color var(--dur-fast), background var(--dur-fast);
}
.chip:hover { border-color: var(--border); color: var(--text); background: var(--panel-2); }
.chip .icon { width: 14px; height: 14px; color: var(--accent); }
.chip span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 9px 15px;
  border-radius: var(--radius-sm);
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 13.5px; font-weight: 500;
  transition: background var(--dur-fast), border-color var(--dur-fast), transform var(--dur-fast);
}
.btn:hover { background: var(--panel-3); }
.btn:active { transform: scale(.98); }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent; color: var(--accent-ink); font-weight: 600;
}
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--text-dim); }
.btn.ghost:hover { background: var(--hover); color: var(--text); }
.btn.danger { background: color-mix(in srgb, var(--danger) 14%, transparent); border-color: color-mix(in srgb, var(--danger) 40%, transparent); color: var(--danger); }
.btn.danger:hover { background: color-mix(in srgb, var(--danger) 22%, transparent); }
.btn .icon { width: 16px; height: 16px; }
.btn[disabled] { opacity: .5; pointer-events: none; }

/* ==========================================================================
   Zone principale
   ========================================================================== */

.main {
  position: relative;
  display: flex; flex-direction: column;
  min-width: 0; height: 100dvh;
  background: var(--bg);
}

.topbar {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px;
  min-height: 60px;
  border-bottom: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  z-index: 20;
}

.title-block { flex: 1; min-width: 0; }
.conv-title {
  margin: 0;
  font-size: 15px; font-weight: 600; letter-spacing: -.01em;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  border-radius: 6px; padding: 2px 6px; margin-left: -6px;
  outline: none;
  transition: background var(--dur-fast);
}
.conv-title:hover { background: var(--hover); }
.conv-title:focus { background: var(--panel-2); box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 40%, transparent); }
.conv-sub {
  font-size: 11.5px; color: var(--text-mute);
  padding-left: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.topbar-actions { display: flex; align-items: center; gap: 4px; }

.menu-wrap { position: relative; }
.menu {
  position: absolute; right: 0; top: calc(100% + 8px);
  min-width: 230px;
  padding: 6px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  z-index: 60;
  animation: pop var(--dur-fast) var(--ease);
}
.menu button {
  display: flex; align-items: center; gap: 10px;
  width: 100%; padding: 9px 10px;
  border-radius: var(--radius-sm);
  font-size: 13.5px; color: var(--text-dim); text-align: left;
}
.menu button:hover { background: var(--hover); color: var(--text); }
.menu button .icon { width: 16px; height: 16px; }
.menu-sep { height: 1px; margin: 5px 6px; background: var(--border-soft); }
.menu-label { padding: 8px 10px 4px; font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-mute); font-weight: 600; }

@keyframes pop { from { opacity: 0; transform: translateY(-4px) scale(.98); } }

/* ==========================================================================
   Fil de discussion
   ========================================================================== */

.thread {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  scroll-behavior: smooth;
  outline: none;
}
.thread-inner {
  max-width: var(--thread-max);
  margin: 0 auto;
  padding: 26px 24px 20px;
  display: flex; flex-direction: column; gap: 22px;
  min-height: 100%;
}

.msg {
  display: flex; gap: 12px;
  animation: rise var(--dur) var(--ease);
}
@keyframes rise { from { opacity: 0; transform: translateY(6px); } }

.msg-avatar {
  width: 30px; height: 30px; border-radius: 9px;
  display: grid; place-items: center;
  flex: none; margin-top: 1px;
  font-size: 12px; font-weight: 700;
}
.msg.user .msg-avatar { background: var(--user-bubble); color: var(--text-dim); border: 1px solid var(--border-soft); }
.msg.assistant .msg-avatar { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: var(--accent-ink); }
.msg-avatar .icon { width: 16px; height: 16px; }

.msg-col { flex: 1; min-width: 0; }
.msg-head {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--text-mute);
  margin-bottom: 4px; min-height: 20px;
}
.msg-author { font-weight: 600; color: var(--text-dim); }
.msg-badge {
  font-size: 10.5px; padding: 1px 7px; border-radius: 99px;
  background: var(--panel-2); border: 1px solid var(--border-soft); color: var(--text-mute);
}
.msg-time { font-size: 11px; }

.msg-body {
  font-size: var(--app-font-size, 15px);
  color: var(--text);
  overflow-wrap: break-word;
  word-break: break-word;
}
.msg.user .msg-body {
  background: var(--user-bubble);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 11px 15px;
  white-space: pre-wrap;
}

.msg-actions {
  display: flex; align-items: center; gap: 2px;
  margin-top: 6px;
  opacity: 0; transform: translateY(-2px);
  transition: opacity var(--dur-fast);
}
.msg:hover .msg-actions, .msg:focus-within .msg-actions { opacity: 1; }
.msg-actions .icon-btn { width: 28px; height: 28px; color: var(--text-mute); }
.msg-actions .icon-btn .icon { width: 15px; height: 15px; }
.msg-actions .sep { width: 1px; height: 16px; background: var(--border-soft); margin: 0 4px; }

.msg-stats {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-top: 6px;
  font-size: 11px; color: var(--text-mute);
  font-variant-numeric: tabular-nums;
}
.msg-stats span { display: inline-flex; align-items: center; gap: 4px; }
.msg-stats .icon { width: 12px; height: 12px; }

.msg-error {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 12px 14px;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--danger) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 35%, transparent);
  color: var(--danger);
  font-size: 13.5px;
}
.msg-error .icon { width: 17px; height: 17px; margin-top: 1px; }
.msg-error strong { display: block; margin-bottom: 2px; }
.msg-error p { margin: 0; color: color-mix(in srgb, var(--danger) 80%, var(--text)); }

.msg-note {
  font-size: 12px; color: var(--warn);
  margin-top: 4px;
}

/* Bloc de raisonnement */
.reasoning {
  margin-bottom: 10px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
}
.reasoning summary {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; cursor: pointer;
  font-size: 12.5px; color: var(--text-mute);
  list-style: none;
}
.reasoning summary::-webkit-details-marker { display: none; }
.reasoning summary .icon { width: 14px; height: 14px; }
.reasoning[open] summary { border-bottom: 1px solid var(--border-soft); }
.reasoning-content {
  padding: 10px 12px;
  font-size: 13px; color: var(--text-dim);
  white-space: pre-wrap; max-height: 320px; overflow-y: auto;
}

/* Curseur de streaming */
.cursor {
  display: inline-block;
  width: 7px; height: 1em;
  vertical-align: text-bottom;
  margin-left: 2px;
  border-radius: 2px;
  background: var(--accent);
  animation: blink 1s steps(2, start) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.typing { display: inline-flex; gap: 4px; align-items: center; padding: 4px 0; }
.typing i {
  width: 6px; height: 6px; border-radius: 99px; background: var(--text-mute);
  animation: bounce 1.2s infinite;
}
.typing i:nth-child(2) { animation-delay: .15s; }
.typing i:nth-child(3) { animation-delay: .3s; }
@keyframes bounce { 0%,60%,100% { translate: 0 0; opacity: .4; } 30% { translate: 0 -4px; opacity: 1; } }

/* ==========================================================================
   Markdown
   ========================================================================== */

.md > *:first-child { margin-top: 0; }
.md > *:last-child { margin-bottom: 0; }
.md p { margin: 0 0 .85em; }
.md h1, .md h2, .md h3, .md h4 { margin: 1.35em 0 .55em; line-height: 1.3; font-weight: 650; letter-spacing: -.01em; }
.md h1 { font-size: 1.5em; }
.md h2 { font-size: 1.28em; }
.md h3 { font-size: 1.12em; }
.md h4 { font-size: 1em; }
.md ul, .md ol { margin: 0 0 .85em; padding-left: 1.4em; }
.md li { margin: .25em 0; }
.md li::marker { color: var(--text-mute); }
.md blockquote {
  margin: 0 0 .85em;
  padding: .1em 0 .1em 1em;
  border-left: 3px solid color-mix(in srgb, var(--accent) 55%, transparent);
  color: var(--text-dim);
}
.md hr { border: none; border-top: 1px solid var(--border); margin: 1.3em 0; }
.md code {
  font-family: var(--font-mono);
  font-size: .88em;
  padding: .15em .4em;
  border-radius: 6px;
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
}
.md a { text-decoration: underline; text-underline-offset: 2px; }
.md strong { font-weight: 650; }
.md del { color: var(--text-mute); }

.md table { width: 100%; border-collapse: collapse; margin: 0 0 .9em; font-size: .94em; display: block; overflow-x: auto; }
.md th, .md td { padding: 7px 11px; border: 1px solid var(--border); text-align: left; }
.md th { background: var(--panel-2); font-weight: 600; }

.code-block {
  position: relative;
  margin: 0 0 .9em;
  border-radius: var(--radius);
  background: var(--code-bg);
  border: 1px solid var(--border);
  overflow: hidden;
}
.code-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 8px 6px 12px;
  border-bottom: 1px solid var(--border-soft);
  font-size: 11.5px; color: var(--text-mute);
  font-family: var(--font-mono);
}
.code-copy {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 9px; border-radius: 7px;
  font-size: 11.5px; font-family: var(--font-sans); color: var(--text-mute);
  transition: background var(--dur-fast), color var(--dur-fast);
}
.code-copy:hover { background: var(--hover-strong); color: var(--text); }
.code-copy .icon { width: 13px; height: 13px; }
.code-copy.done { color: var(--ok); }
.code-block pre {
  margin: 0; padding: 13px 15px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 12.8px; line-height: 1.65;
  tab-size: 2;
}
.code-block pre code { background: none; border: none; padding: 0; font-size: inherit; }

/* Coloration syntaxique minimale */
.tok-key { color: #c792ea; }
.tok-str { color: #a5e075; }
.tok-num { color: #f78c6c; }
.tok-com { color: var(--text-mute); font-style: italic; }
.tok-fn  { color: #82aaff; }
html[data-theme="light"] .tok-key { color: #9333ea; }
html[data-theme="light"] .tok-str { color: #15803d; }
html[data-theme="light"] .tok-num { color: #c2410c; }
html[data-theme="light"] .tok-fn  { color: #1d4ed8; }

/* ==========================================================================
   État vide
   ========================================================================== */

.empty {
  margin: auto;
  text-align: center;
  padding: 24px 0 40px;
  max-width: 640px;
  width: 100%;
}
.empty-logo { display: inline-grid; place-items: center; color: var(--accent); }
.empty-logo svg { width: 56px; height: 56px; border-radius: 16px; }
.empty h2 { font-size: 25px; font-weight: 650; letter-spacing: -.02em; margin: 18px 0 6px; }
.empty-sub { color: var(--text-dim); font-size: 14px; margin: 0 0 26px; }
.suggestions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 10px;
  text-align: left;
}
.suggestion {
  display: flex; flex-direction: column; gap: 3px;
  padding: 14px 15px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--border-soft);
  color: var(--text-dim);
  transition: border-color var(--dur-fast), transform var(--dur-fast), background var(--dur-fast);
}
.suggestion:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); transform: translateY(-2px); background: var(--panel-2); }
.suggestion strong { color: var(--text); font-size: 13.5px; font-weight: 600; }
.suggestion small { font-size: 12.5px; color: var(--text-mute); line-height: 1.45; }
.suggestion .icon { width: 18px; height: 18px; color: var(--accent); margin-bottom: 5px; }

/* ==========================================================================
   Composeur
   ========================================================================== */

.composer-area {
  padding: 6px 24px 12px;
  background: linear-gradient(to top, var(--bg) 62%, transparent);
}
.composer {
  max-width: var(--thread-max);
  margin: 0 auto;
  border-radius: var(--radius-xl);
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: border-color var(--dur), box-shadow var(--dur);
  overflow: hidden;
}
.composer:focus-within {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
  box-shadow: var(--shadow), 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent);
}
.composer.dragover { border-color: var(--accent); border-style: dashed; }

.composer textarea {
  display: block;
  width: 100%;
  max-height: 260px;
  padding: 15px 18px 6px;
  border: none; outline: none; resize: none;
  background: none;
  font-size: 15px; line-height: 1.55;
  overflow-y: auto;
}
.composer textarea::placeholder { color: var(--text-mute); }

.composer-bar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px;
  padding: 6px 10px 9px 12px;
}
.composer-left, .composer-right { display: flex; align-items: center; gap: 4px; min-width: 0; }

/* Sélecteur de modèle, dans la barre du composeur : c'est LE contrôle qui dit
   quel modèle répond. Volontairement proéminent et à gauche. */
.composer-model {
  display: inline-flex; align-items: center; gap: 7px;
  min-width: 0; max-width: 300px;
  padding: 6px 10px;
  border-radius: 99px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  font-size: 12.5px; font-weight: 550; color: var(--text);
  transition: border-color var(--dur-fast), background var(--dur-fast);
}
.composer-model:hover { background: var(--panel-3); border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); }
.composer-model .icon.chev { width: 13px; height: 13px; color: var(--text-mute); }
.composer-model-text { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.composer-model.warn { border-color: color-mix(in srgb, var(--warn) 55%, var(--border)); color: var(--warn); }
.composer-model.warn .dot { background: var(--warn); }

.provider-pill .icon { width: 14px; height: 14px; color: var(--text-mute); }

.banner-actions { display: inline-flex; align-items: center; gap: 6px; flex: none; }
.composer-banner .banner-primary {
  background: var(--accent); color: var(--accent-ink); font-weight: 650;
}
.composer-banner .banner-primary:hover { filter: brightness(1.1); }

.msg-error-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.msg-error-actions button {
  padding: 6px 12px; border-radius: 8px;
  background: color-mix(in srgb, var(--danger) 18%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 45%, transparent);
  color: var(--danger); font-size: 12.5px; font-weight: 600;
}
.msg-error-actions button.strong {
  background: var(--accent); border-color: transparent; color: var(--accent-ink);
}
.msg-error-actions button:hover { filter: brightness(1.12); }

.composer-btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 10px;
  border-radius: 99px;
  font-size: 12px; color: var(--text-mute);
  transition: background var(--dur-fast), color var(--dur-fast);
}
.composer-btn:hover { background: var(--hover); color: var(--text); }
.composer-btn .icon { width: 14px; height: 14px; }
.composer-btn.active { background: color-mix(in srgb, var(--accent) 15%, transparent); color: var(--accent); }

.counter { font-size: 11.5px; color: var(--text-mute); font-variant-numeric: tabular-nums; }

.send-btn {
  display: grid; place-items: center;
  width: 36px; height: 36px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-ink);
  transition: filter var(--dur-fast), transform var(--dur-fast), opacity var(--dur-fast);
}
.send-btn:hover { filter: brightness(1.1); }
.send-btn:active { transform: scale(.94); }
.send-btn[disabled] { opacity: .35; pointer-events: none; }
.send-btn .icon { width: 18px; height: 18px; }

.composer-banner, .edit-banner {
  display: flex; align-items: center; flex-wrap: wrap; gap: 9px;
  padding: 9px 15px;
  font-size: 12.5px;
  border-bottom: 1px solid var(--border-soft);
}
.composer-banner { background: color-mix(in srgb, var(--warn) 12%, transparent); color: var(--warn); }
.edit-banner { background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); }
.composer-banner .icon, .edit-banner .icon { width: 15px; height: 15px; flex: none; }
.composer-banner span, .edit-banner span { flex: 1; }
.composer-banner button {
  padding: 4px 10px; border-radius: 7px; font-weight: 600;
  background: color-mix(in srgb, var(--warn) 22%, transparent); color: var(--warn);
}

.disclaimer {
  max-width: var(--thread-max);
  margin: 9px auto 0;
  text-align: center;
  font-size: 11.5px;
  color: var(--text-mute);
}

.scroll-bottom {
  position: absolute;
  right: 26px;
  bottom: 168px;
  z-index: 15;
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border-radius: 99px;
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  color: var(--text-dim);
}
.scroll-bottom:hover { color: var(--text); background: var(--panel-2); }

/* ==========================================================================
   Modales
   ========================================================================== */

.modal-root { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(4,6,12,.62); backdrop-filter: blur(3px); animation: fade var(--dur) var(--ease); }
@keyframes fade { from { opacity: 0; } }

.modal {
  position: relative;
  width: min(720px, calc(100vw - 32px));
  max-height: min(84dvh, 860px);
  display: flex; flex-direction: column;
  border-radius: var(--radius-lg);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  animation: modalIn var(--dur) var(--ease);
  overflow: hidden;
}
.modal.narrow { width: min(460px, calc(100vw - 32px)); }
@keyframes modalIn { from { opacity: 0; transform: translateY(10px) scale(.985); } }

/* Le conteneur de modale est un flex column : .modal-inner s'efface pour que
   l'en-tête, les onglets, le corps et le pied soient les vrais enfants flex.
   C'est ce qui rend le corps defilable et l'en-tete fixe. */
.modal-inner { display: contents; }

.modal-head {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--border-soft);
  flex: none;
}
.modal-head h2 { margin: 0; font-size: 17px; font-weight: 650; letter-spacing: -.01em; }
.modal-head p { margin: 3px 0 0; font-size: 13px; color: var(--text-mute); }
.modal-head .icon-btn { margin-left: auto; }

.modal-tabs {
  display: flex; gap: 2px;
  padding: 10px 16px 0;
  border-bottom: 1px solid var(--border-soft);
  overflow-x: auto;
  flex: none;
}
.modal-tab {
  padding: 9px 13px;
  border-radius: 9px 9px 0 0;
  font-size: 13.5px; color: var(--text-mute);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.modal-tab:hover { color: var(--text); background: var(--hover); }
.modal-tab.active { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }

/* min-height: 0 est indispensable : sans lui, un enfant flex refuse de
   descendre sous la hauteur de son contenu et overflow-y ne s'active jamais. */
.modal-body {
  padding: 18px 20px;
  overflow-y: auto;
  overscroll-behavior: contain;
  flex: 1 1 auto;
  min-height: 0;
}
.modal-foot {
  display: flex; align-items: center; gap: 10px;
  padding: 13px 20px;
  border-top: 1px solid var(--border-soft);
  background: var(--panel);
  flex: none;
}
.modal-foot .spacer { flex: 1; }

.field { margin-bottom: 18px; }
.field:last-child { margin-bottom: 4px; }
.field > label {
  display: block; margin-bottom: 6px;
  font-size: 13px; font-weight: 600; color: var(--text);
}
.field .hint { font-size: 12px; color: var(--text-mute); margin: 5px 0 0; line-height: 1.5; }
.field .hint code { font-family: var(--font-mono); font-size: 11.5px; background: var(--panel-2); padding: 1px 5px; border-radius: 5px; }

.input, .textarea, .select {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 13.5px;
  outline: none;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.input:focus, .textarea:focus, .select:focus {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent);
}
.textarea { resize: vertical; min-height: 92px; line-height: 1.55; font-family: inherit; }
.input-group { display: flex; gap: 8px; }
.input-group .input { flex: 1; }

.row { display: flex; align-items: center; gap: 12px; }
.row.between { justify-content: space-between; }
.row .grow { flex: 1; }

.range-row { display: flex; align-items: center; gap: 14px; }
.range-row input[type="range"] { flex: 1; accent-color: var(--accent); }
.range-row output {
  min-width: 52px; text-align: right;
  font-variant-numeric: tabular-nums; font-size: 13px; color: var(--text-dim);
}

.switch { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-size: 13.5px; }
.switch input { position: absolute; opacity: 0; pointer-events: none; }
.switch .track {
  width: 40px; height: 23px; border-radius: 99px;
  background: var(--panel-3); border: 1px solid var(--border);
  position: relative; transition: background var(--dur) var(--ease);
  flex: none;
}
.switch .track::after {
  content: ""; position: absolute; top: 2px; left: 2px;
  width: 17px; height: 17px; border-radius: 99px;
  background: var(--text-mute);
  transition: translate var(--dur) var(--ease), background var(--dur);
}
.switch input:checked + .track { background: color-mix(in srgb, var(--accent) 32%, transparent); border-color: color-mix(in srgb, var(--accent) 55%, transparent); }
.switch input:checked + .track::after { translate: 17px 0; background: var(--accent); }

.swatches { display: flex; gap: 8px; flex-wrap: wrap; }
.swatch {
  width: 30px; height: 30px; border-radius: 99px;
  border: 2px solid transparent; outline: 1px solid var(--border);
  outline-offset: 2px;
  transition: transform var(--dur-fast);
}
.swatch:hover { transform: scale(1.1); }
.swatch.active { border-color: var(--bg-soft); outline-color: var(--accent); }

.provider-card {
  display: flex; align-items: flex-start; gap: 13px;
  padding: 14px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--border-soft);
  margin-bottom: 10px;
}
.provider-card.ready { border-color: color-mix(in srgb, var(--ok) 35%, var(--border)); }
.provider-logo {
  width: 34px; height: 34px; border-radius: 9px;
  display: grid; place-items: center; flex: none;
  background: var(--panel-3); color: var(--text-dim);
  font-weight: 700; font-size: 13px;
}
.provider-card.ready .provider-logo { background: color-mix(in srgb, var(--accent) 18%, transparent); color: var(--accent); }
.provider-main { flex: 1; min-width: 0; }
.provider-title { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.provider-title strong { font-size: 14px; }
.tag {
  font-size: 10.5px; font-weight: 600; padding: 2px 7px; border-radius: 99px;
  background: var(--panel-2); border: 1px solid var(--border-soft); color: var(--text-mute);
}
.tag.ok { background: color-mix(in srgb, var(--ok) 14%, transparent); border-color: color-mix(in srgb, var(--ok) 35%, transparent); color: var(--ok); }
.tag.env { background: color-mix(in srgb, var(--accent) 14%, transparent); border-color: color-mix(in srgb, var(--accent) 35%, transparent); color: var(--accent); }
.provider-sub { font-size: 12px; color: var(--text-mute); margin-top: 2px; word-break: break-all; }
.provider-key { display: flex; gap: 8px; margin-top: 10px; align-items: center; }
.provider-key .input { padding: 7px 10px; font-size: 12.5px; font-family: var(--font-mono); }
.provider-foot { display: flex; align-items: center; gap: 8px; margin-top: 8px; flex-wrap: wrap; }

.kbd-list { display: grid; gap: 2px; }
.kbd-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 2px;
  border-bottom: 1px solid var(--border-soft);
  font-size: 13.5px; color: var(--text-dim);
}
.kbd-row:last-child { border-bottom: none; }
kbd {
  font-family: var(--font-sans); font-size: 11.5px; font-weight: 600;
  padding: 3px 7px; border-radius: 6px;
  background: var(--panel-2); border: 1px solid var(--border);
  box-shadow: 0 1px 0 var(--border);
  color: var(--text);
}

/* ==========================================================================
   Toasts
   ========================================================================== */

.toasts {
  position: fixed;
  bottom: 22px; left: 50%; translate: -50% 0;
  z-index: 200;
  display: flex; flex-direction: column-reverse; gap: 8px;
  align-items: center;
  pointer-events: none;
}
.toast {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 15px;
  border-radius: 99px;
  background: var(--panel-3);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  font-size: 13px;
  animation: toastIn var(--dur) var(--ease);
  max-width: min(520px, calc(100vw - 32px));
}
.toast .icon { width: 16px; height: 16px; flex: none; }
.toast.ok .icon { color: var(--ok); }
.toast.err .icon { color: var(--danger); }
.toast.out { animation: toastOut 180ms var(--ease) forwards; }
@keyframes toastIn { from { opacity: 0; translate: 0 12px; } }
@keyframes toastOut { to { opacity: 0; translate: 0 8px; } }

/* ==========================================================================
   Divers
   ========================================================================== */

.scrim {
  position: fixed; inset: 0; z-index: 45;
  background: rgba(4,6,12,.55);
  animation: fade var(--dur) var(--ease);
}
.only-mobile { display: none; }
[hidden] { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 900px) {
  .app { grid-template-columns: minmax(0, 1fr); }
  .sidebar {
    position: fixed; inset: 0 auto 0 0; z-index: 50;
    width: 300px;
    translate: -102% 0;
    transition: translate var(--dur) var(--ease);
    box-shadow: var(--shadow-lg);
  }
  .app.drawer-open .sidebar { translate: 0 0; }
  .app.collapsed .sidebar { opacity: 1; pointer-events: auto; visibility: visible; }
  .only-mobile { display: grid; }
  .thread-inner { padding: 18px 16px 12px; }
  .composer-area { padding: 4px 12px 10px; }
  .topbar { padding: 9px 12px; }
  .chip span { max-width: 96px; }
  .scroll-bottom { right: 16px; bottom: 180px; }
  .empty h2 { font-size: 21px; }
}

@media (max-width: 560px) {
  .topbar-actions .chip { display: none; }
  .conv-title { font-size: 14px; }
  .suggestions { grid-template-columns: 1fr; }
  .modal { width: 100vw; max-height: 92dvh; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
  .modal-root { place-items: end center; }
  .composer-model { max-width: 160px; }
  #sysBtn span { display: none; }
  .composer-banner, .edit-banner { font-size: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .thread { scroll-behavior: auto; }
}

@media print {
  .sidebar, .topbar, .composer-area, .scroll-bottom, .toasts { display: none !important; }
  .thread { overflow: visible; }
  body { background: #fff; color: #000; }
}