/* ANVEN Chat */
body[data-view="chat"] { overflow: hidden; }
body[data-view="chat"] .footer { display: none; }

.chat { position: relative; display: grid; grid-template-columns: 284px minmax(0, 1fr); height: calc(100dvh - var(--nav-h)); background: var(--paper); }

/* ---------------------------------------------------------------- sidebar */
.chat-side { display: flex; flex-direction: column; gap: 14px; min-height: 0; padding: 16px 12px 14px; background: var(--night); color: var(--on-dark-2); }
.chat-side__top { display: grid; gap: 10px; }
.chat-find { display: flex; align-items: center; gap: 8px; padding: 0 12px; border-radius: 10px; background: rgba(255, 255, 255, .06); border: 1px solid var(--on-dark-rule); color: var(--on-dark-3); }
.chat-find:focus-within { border-color: var(--peach); }
.chat-find input { flex: 1; min-width: 0; min-height: 40px; border: 0; outline: 0; background: transparent; color: #fff; font-size: .9375rem; }
.chat-find input::placeholder { color: var(--on-dark-3); }
.chat-list { flex: 1; min-height: 0; overflow-y: auto; display: grid; grid-template-columns: minmax(0, 1fr); align-content: start; gap: 2px; margin: 0 -4px; padding: 0 4px; scrollbar-width: thin; }
.chat-list__h { margin: 14px 8px 6px; font: 700 .75rem/1 var(--font-text); color: var(--on-dark-3); }
.chat-list__empty { padding: 10px 8px; font-size: .875rem; color: var(--on-dark-3); }
.chat-item { display: flex; align-items: center; min-width: 0; border-radius: 10px; }
.chat-item:hover, .chat-item[aria-current="true"] { background: rgba(255, 255, 255, .07); }
.chat-item[aria-current="true"] { box-shadow: inset 3px 0 0 var(--peach); }
.chat-item__open { flex: 1; min-width: 0; padding: 9px 10px; border: 0; background: transparent; color: var(--on-dark); font-size: .9rem; text-align: left; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; cursor: pointer; }
.chat-item__del { flex: none; width: 32px; height: 32px; display: grid; place-items: center; border: 0; border-radius: 8px; background: transparent; color: var(--on-dark-3); cursor: pointer; opacity: 0; }
.chat-item:hover .chat-item__del, .chat-item__del:focus-visible, .chat-item[aria-current="true"] .chat-item__del { opacity: 1; }
.chat-item__del:hover { background: rgba(255, 255, 255, .1); color: #fff; }
.chat-side__foot { display: flex; gap: 10px; padding: 12px 8px 0; border-top: 1px solid var(--on-dark-rule); font-size: .78rem; line-height: 1.45; color: var(--on-dark-3); }
.chat-side__foot .ico { color: var(--peach); margin-top: 1px; }
.chat-scrim { display: none; }

/* ---------------------------------------------------------------- main column */
.chat-main { position: relative; display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.chat-head { display: flex; align-items: center; gap: 14px; padding: 10px clamp(14px, 3vw, 28px); border-bottom: 1px solid var(--rule); }
.chat-head__side { display: none; }
.chat-head__model { display: flex; align-items: center; gap: 10px; min-width: 0; }
.chat-head__model .tc-mark { width: 30px; height: 30px; }
.chat-head__model div { min-width: 0; }
.chat-head__model b { display: block; font: 500 1.0625rem/1.1 var(--font-display); }
.chat-head__model span { display: block; font: 400 .75rem/1.35 var(--font-mono); color: var(--ink-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chat-head__status { margin-left: auto; }
.chat-head__private { display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px; border-radius: 12px 3px 12px 3px; background: rgba(69, 25, 82, .08); color: var(--aubergine); font-size: .8125rem; font-weight: 700; }

.chat-scroll { flex: 1; min-height: 0; overflow-y: auto; }
.chat-thread { max-width: 820px; margin: 0 auto; padding: 28px clamp(16px, 3vw, 28px) 24px; display: grid; gap: 26px; }
.chat-thread.is-empty { min-height: 100%; align-content: center; }

/* empty state */
.chat-empty { display: grid; justify-items: center; gap: 12px; padding: 16px 0; text-align: center; }
.chat-empty__mark { width: 60px; height: 60px; margin-bottom: 6px; }
.chat-empty__h { font: 500 clamp(1.9rem, 3.4vw, 2.6rem)/1.08 var(--font-display); letter-spacing: -.02em; }
.chat-empty__p { max-width: 34rem; color: var(--ink-3); }
.chat-suggest { width: 100%; margin-top: 20px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; text-align: left; }
.chat-suggest__item { display: flex; align-items: flex-start; gap: 14px; padding: 16px; text-align: left; color: var(--ink); border: 1px solid var(--rule); border-radius: var(--petal-md); background: var(--sheet); cursor: pointer; transition: border-color .15s, transform .15s, box-shadow .15s; }
.chat-suggest__item:hover { border-color: var(--rule-strong); transform: translateY(-2px); box-shadow: var(--shadow-lift); }
.chat-suggest__item b { display: block; font-size: .975rem; color: var(--ink); }
.chat-suggest__item span span { display: block; margin-top: 2px; font-size: .85rem; color: var(--ink-3); }

/* ---------------------------------------------------------------- messages */
.msg { display: grid; gap: 8px; }
.msg--user { justify-items: end; }
.msg__bubble { max-width: min(80%, 620px); padding: 12px 16px; border-radius: 20px 20px 6px 20px; background: var(--aubergine); color: #fff; line-height: 1.55; overflow-wrap: anywhere; }
.msg__files { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; max-width: 80%; }
.msg--ai { grid-template-columns: 32px minmax(0, 1fr); align-items: start; gap: 14px; }
.msg__avatar .tc-mark { width: 30px; height: 30px; margin-top: 2px; }
.msg__main { display: grid; gap: 8px; min-width: 0; }
.msg__ctx { display: inline-flex; align-items: center; gap: 7px; font-size: .8125rem; color: var(--ink-3); }
.msg__ctx .ico { color: var(--rose); }
.msg__queue { font-size: .875rem; color: var(--ink-3); }
.msg__tools { display: flex; flex-wrap: wrap; align-items: center; gap: 2px; min-height: 32px; margin-left: -6px; }
.tool { width: 32px; height: 32px; display: grid; place-items: center; border: 0; border-radius: 8px; background: transparent; color: var(--ink-3); cursor: pointer; }
.tool:hover { background: var(--paper-2); color: var(--ink); }
.tool.on { background: rgba(174, 68, 90, .12); color: var(--rose); }
.msg__stats { margin-left: 8px; font: 400 .75rem/1 var(--font-mono); color: var(--ink-3); }
.msg__error { display: flex; align-items: flex-start; gap: 10px; padding: 12px 14px; border-radius: var(--petal-sm); background: var(--esc-bg); color: var(--esc); font-size: .9375rem; }
.msg__error .ico { margin-top: 3px; }

/* answer typography */
.md { font-size: 1rem; line-height: 1.68; color: var(--ink); overflow-wrap: anywhere; }
.md > * + * { margin-top: .8em; }
.md > :first-child { margin-top: 0; }
.md p, .md ul, .md ol, .md pre { margin-bottom: 0; }
.md ul, .md ol { padding-left: 1.4em; }
.md li + li { margin-top: .3em; }
.md li::marker { color: var(--rose); }
.md h1, .md h2, .md h3, .md h4, .md h5, .md h6 { margin-top: 1.25em; font: 500 1.1rem/1.3 var(--font-display); }
.md h1 { font-size: 1.45rem; }
.md h2 { font-size: 1.28rem; }
.md h3 { font-size: 1.12rem; }
.md strong, .md b { font-weight: 700; }
.md a { color: var(--wine); }
.md blockquote { margin: 0; padding: 2px 0 2px 16px; border-left: 3px solid var(--rose); color: var(--ink-2); }
.md :not(pre) > code { padding: .12em .4em; border-radius: 5px; background: var(--paper-2); font: .875em/1.5 var(--font-mono); }
.md hr { border: 0; border-top: 1px solid var(--rule); }
.md-table { overflow-x: auto; border: 1px solid var(--rule); border-radius: var(--petal-sm); background: var(--sheet); }
.md table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.md th, .md td { padding: 9px 12px; border-bottom: 1px solid var(--rule); text-align: left; vertical-align: top; }
.md th { background: var(--paper); font-weight: 700; }
.md tr:last-child td { border-bottom: 0; }
.md input[type="checkbox"] { margin-right: 6px; accent-color: var(--aubergine); }
.code { overflow: hidden; border-radius: var(--petal-sm); background: var(--night); }
.code__bar { display: flex; align-items: center; justify-content: space-between; padding: 5px 6px 5px 14px; background: var(--night-2); color: var(--on-dark-3); font: .75rem/1 var(--font-mono); }
.code__copy { padding: 6px 10px; border: 0; border-radius: 6px; background: transparent; color: var(--on-dark-2); font: 700 .75rem/1 var(--font-text); cursor: pointer; }
.code__copy:hover { background: rgba(255, 255, 255, .08); color: #fff; }
.code pre { margin: 0; padding: 14px 16px; overflow-x: auto; }
.code pre code { color: #f3e9f5; font: .85rem/1.6 var(--font-mono); }

/* while ANVEN writes */
.md.streaming > :last-child:not(ul):not(ol):not(.code):not(.md-table)::after,
.md.streaming > :is(ul, ol):last-child > li:last-child::after {
  content: ""; display: inline-block; width: .5em; height: 1.05em; margin-left: 3px; vertical-align: -.16em;
  border-radius: 2px; background: var(--peach); animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.thinking { display: inline-flex; gap: 6px; padding: 9px 0; }
.thinking i { width: 12px; height: 12px; border-radius: 7px 2px 7px 2px; background: var(--wine); animation: leafpulse 1.2s ease-in-out infinite; }
.thinking i:nth-child(2) { background: var(--rose); animation-delay: .15s; }
.thinking i:nth-child(3) { background: var(--peach); animation-delay: .3s; }
@keyframes leafpulse { 0%, 100% { transform: scale(.7); opacity: .45; } 50% { transform: scale(1); opacity: 1; } }

/* ---------------------------------------------------------------- composer */
.chat-dock { padding: 0 clamp(14px, 3vw, 28px) 12px; }
.composer {
  max-width: 820px; margin: 0 auto; display: grid; gap: 8px; padding: 12px 12px 10px 16px;
  border: 1px solid var(--rule-strong); border-radius: var(--petal); background: var(--sheet);
  box-shadow: 0 12px 32px -20px rgba(29, 10, 37, .4); transition: border-color .15s, box-shadow .15s;
}
.composer:focus-within { border-color: var(--aubergine); box-shadow: 0 0 0 3px rgba(69, 25, 82, .1), 0 12px 32px -20px rgba(29, 10, 37, .4); }
.composer textarea { width: 100%; min-height: 28px; max-height: 220px; padding: 6px 2px; border: 0; outline: 0; resize: none; background: transparent; color: var(--ink); font-size: 1rem; line-height: 1.5; }
.composer textarea::placeholder { color: var(--ink-3); }
.composer__bar { display: flex; align-items: center; gap: 10px; }
.composer__bar .btn-ghost { margin-left: -8px; }
.composer__send { margin-left: auto; flex: none; width: 42px; height: 42px; display: grid; place-items: center; border: 0; border-radius: 15px 4px 15px 4px; background: var(--aubergine); color: #fff; cursor: pointer; transition: background-color .15s; }
.composer__send .ico { width: 20px; height: 20px; }
.composer__send:hover:not(:disabled) { background: var(--wine); }
.composer__send:disabled { background: var(--paper-2); color: var(--ink-3); cursor: not-allowed; }
.composer__send.is-stop { background: var(--rose); }
.composer__files { display: flex; flex-wrap: wrap; gap: 8px; }
.composer__note { flex-basis: 100%; display: flex; align-items: center; gap: 8px; font-size: .8125rem; color: var(--ink-3); }
.composer__note .ico { color: var(--rose); }
.chat-dock__note { max-width: 820px; margin: 8px auto 0; text-align: center; font-size: .75rem; color: var(--ink-3); }

.toggle { position: relative; display: inline-flex; align-items: center; gap: 8px; font-size: .8125rem; font-weight: 700; color: var(--ink-2); cursor: pointer; user-select: none; }
.toggle input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.toggle__ui { position: relative; flex: none; width: 34px; height: 20px; border-radius: 999px; background: var(--rule-strong); transition: background-color .2s; }
.toggle__ui::after { content: ""; position: absolute; top: 3px; left: 3px; width: 14px; height: 14px; border-radius: 50%; background: #fff; transition: transform .2s; }
.toggle input:checked + .toggle__ui { background: var(--aubergine); }
.toggle input:checked + .toggle__ui::after { transform: translateX(14px); }
.toggle input:focus-visible + .toggle__ui { outline: 3px solid var(--rose); outline-offset: 2px; }

/* attached files */
.fchip { display: inline-flex; align-items: center; gap: 10px; max-width: 290px; padding: 6px; border: 1px solid var(--rule); border-radius: 14px 4px 14px 4px; background: var(--paper); }
.msg--user .fchip { background: var(--sheet); }
.fchip__ico { flex: none; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 11px 3px 11px 3px; background: var(--aubergine); color: var(--peach); }
.fchip--reading .fchip__ico { background: var(--paper-2); color: var(--aubergine); }
.fchip--error { border-color: rgba(180, 35, 35, .3); }
.fchip--error .fchip__ico { background: var(--esc-bg); color: var(--esc); }
.fchip__txt { display: grid; min-width: 0; padding-right: 4px; }
.fchip__txt b { font-size: .8125rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fchip__txt span { font-size: .75rem; color: var(--ink-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fchip--error .fchip__txt span { color: var(--esc); white-space: normal; }
.fchip__x { flex: none; width: 26px; height: 26px; display: grid; place-items: center; border: 0; border-radius: 7px; background: transparent; color: var(--ink-3); cursor: pointer; }
.fchip__x:hover { background: var(--paper-2); color: var(--ink); }

.chat-drop { position: absolute; inset: 10px; z-index: 5; display: grid; place-items: center; border: 2px dashed var(--aubergine); border-radius: var(--petal); background: rgba(246, 243, 248, .93); pointer-events: none; }
.chat-drop > div { display: grid; justify-items: center; gap: 8px; padding: 20px; text-align: center; color: var(--aubergine); }
.chat-drop .ico { width: 36px; height: 36px; }
.chat-drop span { font-size: .875rem; color: var(--ink-3); }

/* ---------------------------------------------------------------- small screens */
@media (max-width: 860px) {
  .chat { grid-template-columns: minmax(0, 1fr); }
  .chat-side { position: absolute; z-index: 20; top: 0; bottom: 0; left: 0; width: min(300px, 86vw); transform: translateX(-102%); visibility: hidden; transition: transform .25s ease, visibility 0s linear .25s; }
  .chat.side-open .chat-side { transform: none; visibility: visible; transition: transform .25s ease; box-shadow: 20px 0 40px rgba(20, 5, 25, .3); }
  .chat-scrim { display: block; position: absolute; inset: 0; z-index: 15; background: rgba(29, 10, 37, .42); }
  .chat-head__side { display: inline-flex; }
}
@media (max-width: 560px) {
  .chat-head { gap: 10px; }
  .chat-head__private { display: none; }
  .chat-suggest { grid-template-columns: minmax(0, 1fr); }
  .chat-suggest__item { padding: 12px 14px; }
  .chat-empty__p { font-size: .9375rem; }
  #attach span { display: none; }
  .msg__bubble, .msg__files { max-width: 90%; }
  .msg--ai { grid-template-columns: minmax(0, 1fr); }
  .msg__avatar { display: none; }
}