/* =================================================
   VEX AI — style.css
   Pure black base, Sora font, soft violet accent
================================================= */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:           #000000;
  --sidebar-bg:   #080808;
  --surface:      #0f0f0f;
  --surface-2:    #161616;
  --surface-3:    #1e1e1e;
  --surface-4:    #272727;
  --border:       rgba(255,255,255,0.07);
  --border-soft:  rgba(255,255,255,0.04);
  --border-hover: rgba(255,255,255,0.13);
  --text:         #efefef;
  --text-2:       #999;
  --text-3:       #555;
  --text-4:       #2a2a2a;
  --accent:       #a78bfa;
  --accent-dim:   rgba(167,139,250,0.12);
  --accent-glow:  rgba(167,139,250,0.06);
  --danger:       #f87171;
  --danger-dim:   rgba(248,113,113,0.1);
  --success:      #34d399;
  --font:         'Sora', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;
  --radius:       14px;
  --radius-sm:    9px;
  --radius-xs:    6px;
  --radius-pill:  100px;
  --sidebar-w:    260px;
  --topbar-h:     52px;
}

html, body { height: 100%; overflow: hidden; background: var(--bg); color: var(--text); font-family: var(--font); font-size: 14px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
button { cursor: pointer; font-family: var(--font); }
input, textarea { font-family: var(--font); }

::-webkit-scrollbar { width: 3px; height: 3px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface-3); border-radius: 3px; }

/* ── LAYOUT ── */
body { display: flex; height: 100vh; }

/* ── SIDEBAR ── */
.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  transition: transform 0.22s cubic-bezier(0.4,0,0.2,1), opacity 0.22s;
  position: relative;
  z-index: 20;
}

.sidebar.collapsed { transform: translateX(-100%); position: absolute; opacity: 0; pointer-events: none; }

.sidebar-top { display: flex; align-items: center; justify-content: space-between; padding: 14px 14px 12px; flex-shrink: 0; }

.brand { display: flex; align-items: center; gap: 10px; }

.brand-orb {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #c4b5fd, #7c3aed 60%, #4c1d95);
  box-shadow: 0 0 14px rgba(167,139,250,0.4);
  flex-shrink: 0;
}

.brand-name { font-size: 17px; font-weight: 700; letter-spacing: -0.4px; color: var(--text); }
.brand-ai { color: var(--accent); }

.new-chat-btn {
  display: flex; align-items: center; gap: 8px;
  width: calc(100% - 28px); margin: 0 14px 10px;
  padding: 9px 13px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text);
  font-size: 13px; font-weight: 500;
  transition: background 0.15s, border-color 0.15s;
}
.new-chat-btn svg { width: 14px; height: 14px; flex-shrink: 0; }
.new-chat-btn:hover { background: var(--surface-2); border-color: var(--border-hover); }

.search-wrap { position: relative; margin: 0 14px 8px; flex-shrink: 0; }
.search-icon { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); width: 13px; height: 13px; color: var(--text-3); pointer-events: none; }
.search-input { width: 100%; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 8px 10px 8px 30px; font-size: 13px; color: var(--text); outline: none; transition: border-color 0.15s; }
.search-input::placeholder { color: var(--text-3); }
.search-input:focus { border-color: var(--border-hover); }

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

.group-label { font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.7px; color: var(--text-3); padding: 10px 6px 5px; }

.chat-item { display: flex; align-items: center; gap: 8px; padding: 7px 9px; border-radius: var(--radius-sm); cursor: pointer; transition: background 0.12s; user-select: none; min-width: 0; }
.chat-item:hover { background: var(--surface); }
.chat-item.active { background: var(--surface-2); }

.chat-cb { width: 16px; height: 16px; border: 1.5px solid var(--border-hover); border-radius: 4px; background: transparent; flex-shrink: 0; display: none; align-items: center; justify-content: center; transition: background 0.12s; }
.bulk-mode .chat-cb { display: flex; }
.chat-cb.checked { background: var(--accent); border-color: var(--accent); }
.chat-cb.checked::after { content: ''; display: block; width: 9px; height: 6px; border-left: 2px solid #000; border-bottom: 2px solid #000; transform: rotate(-45deg) translateY(-1px); }

.chat-item-icon { color: var(--text-3); flex-shrink: 0; display: flex; }
.chat-item-icon svg { width: 13px; height: 13px; }

.chat-item-label { flex: 1; font-size: 13px; color: var(--text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; transition: color 0.12s; }
.chat-item.active .chat-item-label,
.chat-item:hover .chat-item-label { color: var(--text); }

.chat-item-btns { display: none; gap: 2px; flex-shrink: 0; }
.chat-item:hover .chat-item-btns { display: flex; }
.bulk-mode .chat-item-btns { display: none !important; }

.ci-btn { display: flex; align-items: center; justify-content: center; width: 24px; height: 24px; background: none; border: none; border-radius: 5px; color: var(--text-3); transition: background 0.12s, color 0.12s; }
.ci-btn:hover { background: var(--surface-3); color: var(--text-2); }
.ci-btn.del:hover { color: var(--danger); }
.ci-btn svg { width: 12px; height: 12px; }

.sidebar-footer { padding: 10px 12px 14px; border-top: 1px solid var(--border); flex-shrink: 0; display: flex; flex-direction: column; gap: 8px; }

.footer-btn { display: flex; align-items: center; gap: 8px; width: 100%; padding: 8px 10px; background: none; border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-3); font-size: 13px; transition: border-color 0.15s, color 0.15s, background 0.15s; }
.footer-btn svg { width: 14px; height: 14px; flex-shrink: 0; }
.footer-btn:hover { color: var(--text-2); border-color: var(--border-hover); background: var(--surface); }
.footer-btn.active { color: var(--text); border-color: var(--accent); background: var(--accent-dim); }

.bulk-bar { display: none; flex-direction: column; gap: 6px; }
.bulk-mode .bulk-bar { display: flex; }
.bulk-mode .bulk-toggle { display: none; }

.bulk-del-btn { display: flex; align-items: center; justify-content: center; gap: 7px; width: 100%; padding: 9px; background: var(--danger); border: none; border-radius: var(--radius-sm); color: #fff; font-size: 13px; font-weight: 500; transition: opacity 0.15s; }
.bulk-del-btn:hover { opacity: 0.85; }
.bulk-del-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.bulk-del-btn svg { width: 13px; height: 13px; }

.bulk-cancel-btn { width: 100%; padding: 8px; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-2); font-size: 13px; transition: background 0.12s; }
.bulk-cancel-btn:hover { background: var(--surface-3); }

/* ── MAIN ── */
.main { flex: 1; display: flex; flex-direction: column; height: 100vh; overflow: hidden; background: var(--bg); min-width: 0; }

/* ── TOPBAR ── */
.topbar { height: var(--topbar-h); display: flex; align-items: center; padding: 0 14px; border-bottom: 1px solid var(--border); gap: 10px; flex-shrink: 0; }
.topbar-center { flex: 1; display: flex; justify-content: center; }
.topbar-right { display: flex; gap: 4px; }

.icon-btn { display: flex; align-items: center; justify-content: center; width: 34px; height: 34px; background: none; border: none; border-radius: var(--radius-sm); color: var(--text-3); transition: background 0.12s, color 0.12s; flex-shrink: 0; }
.icon-btn svg { width: 16px; height: 16px; }
.icon-btn:hover { background: var(--surface-2); color: var(--text-2); }
.icon-btn.danger-btn:hover { background: var(--danger-dim); color: var(--danger); }
.icon-btn.accent-active { color: var(--accent); }

/* ── MODE SWITCHER ── */
.mode-switcher { display: flex; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-pill); padding: 3px; gap: 2px; }
.mode-btn { padding: 5px 14px; border: none; background: none; border-radius: var(--radius-pill); color: var(--text-3); font-size: 12.5px; font-weight: 500; font-family: var(--font); transition: background 0.15s, color 0.15s; }
.mode-btn:hover { color: var(--text-2); }
.mode-btn.active { background: var(--surface-3); color: var(--text); }

/* ── RP BAR ── */
.rp-bar { display: none; background: var(--surface); border-bottom: 1px solid var(--border); padding: 8px 16px; flex-shrink: 0; }
.rp-bar.visible { display: block; }
.rp-bar-inner { display: flex; align-items: center; gap: 10px; max-width: 720px; margin: 0 auto; flex-wrap: wrap; }
.rp-label { font-size: 12px; color: var(--text-3); white-space: nowrap; }
.rp-input { flex: 1; min-width: 120px; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-xs); padding: 6px 10px; font-size: 12.5px; color: var(--text); outline: none; transition: border-color 0.15s; }
.rp-input::placeholder { color: var(--text-3); }
.rp-input:focus { border-color: var(--accent); }
.rp-apply-btn { padding: 6px 14px; background: var(--accent-dim); border: 1px solid var(--accent); border-radius: var(--radius-xs); color: var(--accent); font-size: 12.5px; font-weight: 600; font-family: var(--font); transition: background 0.15s; white-space: nowrap; }
.rp-apply-btn:hover { background: rgba(167,139,250,0.2); }

/* ── MESSAGES ── */
.messages-scroll { flex: 1; overflow-y: auto; overflow-x: hidden; }
.messages-feed { max-width: 720px; margin: 0 auto; padding: 28px 20px 20px; display: flex; flex-direction: column; gap: 0; }

/* ── WELCOME ── */
.welcome { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: calc(100vh - var(--topbar-h) - 180px); text-align: center; padding: 20px; }

.welcome-orb {
  width: 72px; height: 72px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #c4b5fd, #7c3aed 60%, #4c1d95);
  box-shadow: 0 0 40px rgba(167,139,250,0.35), 0 0 80px rgba(167,139,250,0.15);
  margin-bottom: 22px;
  animation: orbPulse 3s ease-in-out infinite;
}

@keyframes orbPulse {
  0%, 100% { box-shadow: 0 0 40px rgba(167,139,250,0.35), 0 0 80px rgba(167,139,250,0.15); }
  50%       { box-shadow: 0 0 55px rgba(167,139,250,0.5),  0 0 100px rgba(167,139,250,0.22); }
}

.welcome-heading { font-size: 26px; font-weight: 700; letter-spacing: -0.6px; color: var(--text); margin-bottom: 6px; }
.welcome-sub { font-size: 14px; color: var(--text-3); margin-bottom: 32px; }

.suggestions-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; width: 100%; max-width: 540px; }
.sug-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; text-align: left; cursor: pointer; transition: background 0.15s, border-color 0.15s; }
.sug-card:hover { background: var(--surface-2); border-color: var(--border-hover); }
.sug-title { font-size: 13px; font-weight: 500; color: var(--text); margin-bottom: 3px; }
.sug-desc { font-size: 12px; color: var(--text-3); }

/* ── MESSAGES ── */
.msg { display: flex; flex-direction: column; padding: 8px 0; animation: fadeUp 0.18s ease; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

.msg.user { align-items: flex-end; }
.msg.ai   { align-items: flex-start; }

.msg.user .bubble { background: var(--surface-2); border: 1px solid var(--border); border-radius: 18px; border-bottom-right-radius: 5px; padding: 11px 16px; max-width: 78%; font-size: 14px; color: var(--text); line-height: 1.65; word-break: break-word; white-space: pre-wrap; }
.msg.ai .bubble { background: transparent; padding: 4px 0; max-width: 100%; font-size: 14.5px; color: var(--text); line-height: 1.8; word-break: break-word; white-space: pre-wrap; }

.ai-row { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.ai-orb { width: 22px; height: 22px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, #c4b5fd, #7c3aed 60%, #4c1d95); flex-shrink: 0; }
.ai-label { font-size: 12.5px; font-weight: 600; color: var(--text-2); }
.ai-mode-tag { font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--accent); background: var(--accent-dim); border: 1px solid rgba(167,139,250,0.2); padding: 2px 7px; border-radius: var(--radius-pill); }

/* Search results card */
.search-results { margin-bottom: 12px; }
.search-result-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 14px; margin-bottom: 6px; transition: border-color 0.12s; }
.search-result-item:hover { border-color: var(--border-hover); }
.search-result-title { font-size: 13px; font-weight: 600; color: var(--accent); margin-bottom: 3px; }
.search-result-url { font-size: 11px; color: var(--text-3); margin-bottom: 5px; font-family: var(--font-mono); }
.search-result-snippet { font-size: 12.5px; color: var(--text-2); line-height: 1.5; }

/* Memory badge */
.memory-used-badge { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; color: var(--text-3); margin-bottom: 8px; }
.memory-used-badge svg { width: 11px; height: 11px; }

/* Images in messages */
.msg-imgs { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 7px; max-width: 78%; justify-content: flex-end; }
.msg.ai .msg-imgs { justify-content: flex-start; }
.msg-img { width: 130px; height: 130px; object-fit: cover; border-radius: 10px; border: 1px solid var(--border); }

/* Action row */
.msg-acts { display: flex; gap: 4px; margin-top: 8px; opacity: 0; transition: opacity 0.15s; flex-wrap: wrap; align-items: center; }
.msg:hover .msg-acts { opacity: 1; }
.ma-btn { display: flex; align-items: center; gap: 5px; padding: 4px 9px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-xs); color: var(--text-3); font-size: 11.5px; font-family: var(--font); transition: background 0.12s, color 0.12s, border-color 0.12s; cursor: pointer; }
.ma-btn:hover { background: var(--surface-2); color: var(--text-2); border-color: var(--border-hover); }
.ma-btn svg { width: 11px; height: 11px; }
.ma-btn:disabled { opacity: 0.25; cursor: not-allowed; }
.nav-btn { padding: 4px 6px !important; min-width: 0; }
.nav-btn svg { width: 11px; height: 11px; display: block; }
.alt-label { font-size: 11px; color: var(--text-3); padding: 0 2px; font-variant-numeric: tabular-nums; user-select: none; }

/* Typing dots */
.typing { display: flex; align-items: center; gap: 5px; padding: 14px 0 8px; }
.t-dot { width: 6px; height: 6px; background: var(--text-3); border-radius: 50%; animation: tdot 1.3s infinite ease-in-out; }
.t-dot:nth-child(2) { animation-delay: 0.18s; }
.t-dot:nth-child(3) { animation-delay: 0.36s; }
@keyframes tdot { 0%, 60%, 100% { transform: scale(0.8); opacity: 0.35; } 30% { transform: scale(1.2); opacity: 1; } }

/* ── COMPOSER ── */
.composer-wrap { padding: 10px 20px 20px; flex-shrink: 0; background: var(--bg); }
.composer-inner { max-width: 720px; margin: 0 auto; }

.img-tray { display: none; flex-wrap: wrap; gap: 8px; padding: 10px 12px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius) var(--radius) 0 0; border-bottom: none; }
.img-tray.open { display: flex; }

.img-thumb { position: relative; width: 70px; height: 70px; border-radius: 8px; overflow: visible; flex-shrink: 0; }
.img-thumb img { width: 100%; height: 100%; object-fit: cover; border-radius: 8px; border: 1px solid var(--border); display: block; }

.thumb-remove { position: absolute; top: -5px; right: -5px; width: 17px; height: 17px; background: var(--surface-4); border: 1px solid var(--border-hover); border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; z-index: 2; transition: background 0.12s; color: var(--text-3); }
.thumb-remove:hover { background: var(--danger); color: #fff; border-color: var(--danger); }
.thumb-remove svg { width: 8px; height: 8px; }

.thumb-overlay { position: absolute; inset: 0; border-radius: 8px; background: rgba(0,0,0,0.62); display: none; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.img-thumb.uploading .thumb-overlay,
.img-thumb.failed    .thumb-overlay { display: flex; }
.img-thumb.done      .thumb-overlay { display: none; }

.thumb-spinner { width: 18px; height: 18px; border: 2px solid rgba(255,255,255,0.2); border-top-color: rgba(255,255,255,0.8); border-radius: 50%; animation: spin 0.65s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.thumb-status { font-size: 9px; font-weight: 600; text-transform: uppercase; color: rgba(255,255,255,0.6); }
.img-thumb.failed .thumb-status { color: #fca5a5; }
.retry-btn { background: var(--danger); border: none; color: #fff; font-family: var(--font); font-size: 9.5px; font-weight: 600; padding: 3px 8px; border-radius: 4px; cursor: pointer; transition: opacity 0.12s; }
.retry-btn:hover { opacity: 0.82; }

.composer-box { display: flex; align-items: flex-end; gap: 10px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 12px; transition: border-color 0.15s; }
.img-tray.open + .composer-box { border-top-left-radius: 0; border-top-right-radius: 0; }
.composer-box:focus-within { border-color: var(--border-hover); }

.attach-btn { display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; background: none; border: none; border-radius: var(--radius-xs); color: var(--text-3); transition: color 0.12s, background 0.12s; flex-shrink: 0; padding-bottom: 1px; }
.attach-btn svg { width: 17px; height: 17px; }
.attach-btn:hover { color: var(--text-2); background: var(--surface-2); }

.chat-input { flex: 1; background: none; border: none; color: var(--text); font-size: 14.5px; line-height: 1.6; resize: none; outline: none; min-height: 24px; max-height: 200px; overflow-y: auto; padding: 3px 0; }
.chat-input::placeholder { color: var(--text-4); }

.send-btn { display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; background: var(--accent); border: none; border-radius: var(--radius-xs); color: #fff; transition: opacity 0.15s, transform 0.1s; flex-shrink: 0; }
.send-btn svg { width: 15px; height: 15px; }
.send-btn:hover { opacity: 0.85; }
.send-btn:active { transform: scale(0.92); }
.send-btn:disabled { opacity: 0.2; cursor: not-allowed; }

.composer-footer { display: flex; align-items: center; justify-content: space-between; margin-top: 8px; padding: 0 2px; }
.footer-pills { display: flex; gap: 6px; }
.pill-btn { display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px; background: none; border: 1px solid var(--border); border-radius: var(--radius-pill); color: var(--text-3); font-size: 12px; font-family: var(--font); transition: background 0.12s, border-color 0.12s, color 0.12s; }
.pill-btn:hover { background: var(--surface); border-color: var(--border-hover); color: var(--text-2); }
.pill-btn.active { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }
.img-counter { font-size: 11.5px; color: var(--text-3); font-variant-numeric: tabular-nums; }

/* ── EDIT MESSAGE ── */
.edit-wrap { width: 100%; max-width: 78%; display: flex; flex-direction: column; gap: 8px; align-self: flex-end; }
.edit-textarea { width: 100%; background: var(--surface-2); border: 1px solid var(--border-hover); border-radius: 12px; padding: 11px 14px; font-family: var(--font); font-size: 14px; color: var(--text); resize: none; outline: none; min-height: 44px; max-height: 300px; overflow-y: auto; line-height: 1.6; }
.edit-textarea:focus { border-color: var(--accent); }
.edit-btns { display: flex; gap: 7px; justify-content: flex-end; }
.edit-save-btn { padding: 6px 14px; background: var(--accent); border: none; border-radius: 7px; color: #fff; font-family: var(--font); font-size: 12.5px; font-weight: 600; cursor: pointer; transition: opacity 0.12s; }
.edit-save-btn:hover { opacity: 0.85; }
.edit-cancel-btn { padding: 6px 12px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 7px; color: var(--text-2); font-family: var(--font); font-size: 12.5px; cursor: pointer; transition: background 0.12s; }
.edit-cancel-btn:hover { background: var(--surface-3); }

/* ── MEMORY PANEL ── */
.memory-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.65); backdrop-filter: blur(6px); display: flex; align-items: center; justify-content: center; z-index: 100; opacity: 0; pointer-events: none; transition: opacity 0.18s; }
.memory-overlay.open { opacity: 1; pointer-events: all; }
.memory-panel { background: var(--surface); border: 1px solid var(--border-hover); border-radius: 16px; width: 400px; max-width: calc(100vw - 32px); max-height: 70vh; display: flex; flex-direction: column; transform: scale(0.96) translateY(10px); transition: transform 0.18s; }
.memory-overlay.open .memory-panel { transform: scale(1) translateY(0); }
.memory-header { display: flex; align-items: center; justify-content: space-between; padding: 16px 18px; border-bottom: 1px solid var(--border); }
.memory-title { font-size: 15px; font-weight: 600; color: var(--text); }
.memory-body { flex: 1; overflow-y: auto; padding: 12px 18px; display: flex; flex-direction: column; gap: 8px; }
.memory-item { display: flex; align-items: flex-start; gap: 10px; padding: 10px 12px; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); }
.memory-item-text { flex: 1; font-size: 13px; color: var(--text-2); line-height: 1.5; }
.memory-item-del { background: none; border: none; color: var(--text-3); cursor: pointer; padding: 2px; border-radius: 4px; display: flex; transition: color 0.12s; }
.memory-item-del:hover { color: var(--danger); }
.memory-item-del svg { width: 13px; height: 13px; }
.memory-empty { text-align: center; padding: 28px; font-size: 13px; color: var(--text-3); }
.memory-footer { padding: 12px 18px; border-top: 1px solid var(--border); display: flex; gap: 8px; }
.memory-add-input { flex: 1; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 8px 12px; font-size: 13px; color: var(--text); outline: none; font-family: var(--font); transition: border-color 0.15s; }
.memory-add-input::placeholder { color: var(--text-3); }
.memory-add-input:focus { border-color: var(--accent); }
.memory-add-btn { padding: 8px 14px; background: var(--accent-dim); border: 1px solid var(--accent); border-radius: var(--radius-sm); color: var(--accent); font-size: 13px; font-weight: 600; font-family: var(--font); transition: background 0.12s; }
.memory-add-btn:hover { background: rgba(167,139,250,0.2); }
.memory-clear-btn { padding: 8px 10px; background: none; border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-3); font-size: 13px; font-family: var(--font); transition: background 0.12s, color 0.12s; }
.memory-clear-btn:hover { background: var(--danger-dim); color: var(--danger); border-color: var(--danger); }

/* ── MODAL ── */
.overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.72); backdrop-filter: blur(6px); display: flex; align-items: center; justify-content: center; z-index: 200; opacity: 0; pointer-events: none; transition: opacity 0.18s; }
.overlay.open { opacity: 1; pointer-events: all; }
.modal { background: var(--surface); border: 1px solid var(--border-hover); border-radius: 16px; padding: 26px; width: 340px; max-width: calc(100vw - 32px); transform: scale(0.96) translateY(10px); transition: transform 0.18s; }
.overlay.open .modal { transform: scale(1) translateY(0); }
.modal-title { font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.modal-body { font-size: 13.5px; color: var(--text-2); line-height: 1.55; margin-bottom: 22px; }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; }
.modal-cancel { padding: 8px 16px; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-2); font-size: 13.5px; font-family: var(--font); transition: background 0.12s; }
.modal-cancel:hover { background: var(--surface-3); }
.modal-confirm { padding: 8px 16px; background: var(--danger); border: none; border-radius: var(--radius-sm); color: #fff; font-size: 13.5px; font-weight: 500; font-family: var(--font); transition: opacity 0.12s; }
.modal-confirm:hover { opacity: 0.85; }

/* ── TOAST ── */
.toast { position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%) translateY(14px); background: var(--surface-3); border: 1px solid var(--border-hover); color: var(--text); padding: 9px 18px; border-radius: var(--radius-pill); font-size: 13px; opacity: 0; pointer-events: none; z-index: 300; transition: opacity 0.2s, transform 0.2s; white-space: nowrap; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.no-chats { text-align: center; padding: 28px 10px; font-size: 12.5px; color: var(--text-4); }

@media (max-width: 680px) {
  .sidebar { position: absolute; height: 100%; box-shadow: 0 0 0 100vw rgba(0,0,0,0.55); }
  .sidebar.collapsed { box-shadow: none; }
  .suggestions-grid { grid-template-columns: 1fr; }
  .msg.user .bubble, .msg-imgs { max-width: 92%; }
  .rp-bar-inner { gap: 6px; }
}