/* The chat page (templates/chat.html). The shared shell, colours and rail are in tokens.css and shell.css. */
body{background:linear-gradient(color-mix(in srgb,var(--paper) 86%,transparent),color-mix(in srgb,var(--paper) 86%,transparent)),url("/static/garden.webp") center/cover no-repeat fixed}

/* ---------- app shell ---------- */
.app{display:grid;grid-template-columns:minmax(0,1fr);height:100%}
.masthead{display:flex;justify-content:center;padding:14px 0 6px;flex:none}
.masthead img{height:auto;width:auto;max-width:min(360px,80%);display:block}
.masthead .wm-dark{display:none}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]) .masthead .wm-light{display:none}
  :root:not([data-theme="light"]) .masthead .wm-dark{display:block}
}
:root[data-theme="dark"] .masthead .wm-light{display:none}
:root[data-theme="dark"] .masthead .wm-dark{display:block}

/* ---------- conversation sidebar ---------- */
.side{background:var(--paper);border-right:1px solid var(--rule);display:flex;flex-direction:column;min-width:0;overflow:hidden;
  position:fixed;left:var(--rail-w);top:0;bottom:0;width:266px;transform:translateX(calc(-100% - var(--rail-w) - 4px));transition:transform .2s ease;z-index:30;pointer-events:none}
.side.open{transform:translateX(0);box-shadow:0 0 40px rgba(0,0,0,.22);pointer-events:auto}
.side-h{padding:13px 13px 11px}
.newbtn{width:100%;display:flex;align-items:center;justify-content:center;gap:7px;font-family:var(--sans);font-weight:600;font-size:13.5px;color:var(--on-accent);background:var(--accent);border:0;border-radius:9px;padding:9px 12px;cursor:pointer}
.newbtn:hover{background:var(--accent-soft)}
.side-lab{font-family:var(--mono);font-size:10px;letter-spacing:.13em;text-transform:uppercase;color:var(--iron-soft);margin:6px 15px 6px}
.chats{flex:1;overflow-y:auto;padding:0 8px 12px}
.chat-item{display:flex;align-items:center;gap:4px;border-radius:8px;padding:8px 8px 8px 11px;cursor:pointer;color:var(--ink-soft)}
.chat-item:hover{background:var(--surface-2)}
.chat-item.on{background:var(--surface-2);color:var(--ink)}
.chat-item .ci-t{flex:1;min-width:0;font:inherit;font-size:13px;color:inherit;text-align:left;background:none;border:0;padding:0;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat-item .del{opacity:0;border:0;background:none;color:var(--ink-faint);cursor:pointer;font-size:15px;line-height:1;padding:2px 5px;border-radius:6px}
.chat-item:hover .del,.chat-item:focus-within .del{opacity:1}
.chat-item .ci-t:focus-visible,.chat-item .del:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media (pointer:coarse){.chat-item{min-height:44px;padding-top:0;padding-bottom:0}.chat-item .ci-t{min-height:44px}
  .chat-item .del{opacity:1;min-width:44px;min-height:44px}}
.chat-item .del:hover{color:var(--err);background:var(--paper)}
.chats .none{font-size:12.5px;color:var(--ink-faint);padding:12px 13px;line-height:1.5}

/* ---------- main column ---------- */
.col{display:flex;flex-direction:column;min-width:0;position:relative;height:100%;overflow:hidden}
.thread-h{position:absolute;top:12px;right:20px;display:flex;align-items:center;gap:8px;z-index:10}
.thread-h .ttl{display:none}
.menu-btn{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border:0;border-radius:8px;background:none;color:var(--ink-faint);cursor:pointer;padding:0}
.menu-btn:hover,.menu-btn[aria-expanded="true"]{color:var(--accent);background:var(--surface)}
.menu-btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.thread-h .ttl{font-family:var(--serif);font-weight:600;font-size:1.04rem;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vlab{font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint)}
.toggle{display:flex;border:1px solid var(--rule-strong);border-radius:999px;overflow:hidden;font-size:12px;font-weight:600}
.toggle button{font-family:var(--sans);font-weight:600;border:0;background:var(--surface);color:var(--ink-soft);padding:5px 12px;cursor:pointer}
.toggle button[aria-pressed="true"]{background:var(--accent);color:var(--on-accent)}
.corpus-info{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:8px;color:var(--ink-faint);text-decoration:none}
.corpus-info:hover{color:var(--accent);background:var(--surface)}
.corpus-info svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
/* the About Exegetica window (info button): About and FAQs tabs */
.src-btn{display:inline-flex;vertical-align:-5px;align-items:center;justify-content:center;width:26px;height:26px;margin-left:4px;padding:0;border:0;border-radius:8px;background:none;color:var(--ink-faint);cursor:pointer}
.src-btn:hover,.src-btn:focus-visible{color:var(--accent);background:var(--surface)}
.src-btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.src-btn:focus-visible,.corpus-info:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media (pointer:coarse){.src-btn,.corpus-info,.menu-btn{width:44px;height:44px}.src-btn{vertical-align:middle;margin-left:0}}
.help-card.src-card{max-width:640px}
.src-intro p{margin:0 2px 12px;font-size:14px;line-height:1.6;color:var(--ink-soft)}
.src-intro p.about-lead{font-size:15.5px;color:var(--ink);margin-top:14px}
.src-intro strong{color:var(--ink);font-weight:600}
.about-go{border:none;background:none;padding:0;font:inherit;color:var(--iron);text-decoration:underline;cursor:pointer}
.about-go:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.src-tabs{display:flex;gap:4px;border-bottom:1px solid var(--rule);margin:2px 0 4px}
.src-tab{border:none;background:none;color:var(--ink-soft);font:inherit;font-size:13.5px;font-weight:600;padding:8px 12px;border-bottom:2px solid transparent;margin-bottom:-1px;cursor:pointer}
.src-tab:hover{color:var(--ink)}
.src-tab[aria-selected="true"]{color:var(--accent);border-bottom-color:var(--accent)}
.src-tab:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
#src-about:focus-visible,#src-faq:focus-visible{outline:none}
.faq-links{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:18px 0 8px}
.faq-link{display:block;border:1px solid var(--rule-strong);border-radius:10px;padding:12px 14px;text-decoration:none;color:var(--ink)}
.faq-link:hover,.faq-link:focus-visible{border-color:var(--accent)}
.faq-link:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.faq-link strong{display:block;font-size:14.5px;font-weight:600;margin-bottom:3px}
.faq-link span{display:block;font-size:12.5px;line-height:1.45;color:var(--ink-soft)}
@media (max-width:520px){.faq-links{grid-template-columns:1fr}}
@media (pointer:coarse){.src-tab{min-height:44px}}
.src-h{font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--iron-soft);margin:14px 0 6px}
.faq{border-top:1px solid var(--rule)}
.faq summary{cursor:pointer;font-size:14px;font-weight:600;line-height:1.4;color:var(--ink);padding:9px 2px}
.faq summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.faq p{margin:0 2px 11px;font-size:13.5px;line-height:1.55;color:var(--ink-soft)}
.faq ul,.faq ol{margin:0 2px 11px;padding-left:20px;font-size:13.5px;line-height:1.55;color:var(--ink-soft)}
.faq li{margin:0 0 5px}.faq li>ul,.faq li>ol{margin:5px 0 0}.faq li p{margin:0}
.faq strong{color:var(--ink);font-weight:600}
.faq-h{font-size:12.5px;font-weight:700;color:var(--ink);margin:16px 2px 4px}
.faq a{color:var(--iron)}
@media (pointer:coarse){.faq summary{padding:13px 2px}}

main.scroll{flex:1;overflow-y:auto;min-height:0}
.thread{--col:780px;padding:26px 24px 10px}
.msg{margin-bottom:24px;display:flex;flex-direction:column;gap:6px}
.msg .who{font-size:11px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-faint)}
.msg.user .who{color:var(--accent-soft)}
.bubble{border-radius:12px}
.msg.user .bubble{background:var(--user-bg);padding:12px 16px;align-self:flex-start;max-width:100%}
.prose{overflow-wrap:break-word;max-width:62ch}
.prose h2{font-family:var(--serif);font-size:1.3rem;margin:1em 0 .4em}
.prose h3{font-family:var(--serif);font-size:1.12rem;margin:.9em 0 .35em}
.prose h4{font-size:1rem;margin:.8em 0 .3em}
.prose p{margin:.5em 0}
.prose ul,.prose ol{margin:.4em 0;padding-left:1.4em}
.prose li{margin:.15em 0}
.prose blockquote{font-family:var(--serif);font-size:1.08rem;line-height:1.7;border-left:2.5px solid var(--accent);background:var(--surface-2);margin:.7em 0;padding:.5em .2em .5em 1em;color:var(--ink);border-radius:0 6px 6px 0}
.prose code{font-family:var(--mono);font-size:.86em;background:var(--code-bg);border:1px solid var(--rule);border-radius:4px;padding:.05em .35em}
.prose pre{background:var(--code-bg);border:1px solid var(--rule);border-radius:8px;padding:12px;overflow-x:auto}
.prose pre code{background:none;border:0;padding:0}
.prose hr{border:0;border-top:1px solid var(--rule);margin:1em 0}
.prose a{color:var(--iron)}
.prose .tablewrap{overflow-x:auto;margin:.6em 0;max-width:100%}
.prose table{border-collapse:collapse;font-size:.9em}
.prose th,.prose td{border:1px solid var(--rule);padding:6px 10px;text-align:left;vertical-align:top}
.prose th{background:var(--surface-2);font-weight:600}
.tools{display:flex;flex-direction:column;gap:5px;margin:2px 0}   /* the tool chips (Shell.chips) */
.shell-status:not([hidden]) ~ .prose .caret{display:none}   /* the status line is the one sign of work */
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}
.thinking{font-style:italic;color:var(--ink-faint);font-size:.92em;font-family:var(--serif)}
.notice{font-size:12.5px;color:var(--warn);background:var(--surface-2);border:1px solid var(--rule);
  border-radius:8px;padding:6px 11px;align-self:flex-start;margin:2px 0}
.caret{display:inline-block;width:.5em;height:1.05em;background:var(--accent);vertical-align:text-bottom;animation:pulse 1s infinite;margin-left:1px}
.srcnote{font-family:var(--sans);font-size:12px;color:var(--ink-faint);margin:6px 0 0}
.msg-actions{display:flex;gap:6px;margin-top:2px}
.msg-actions button{font-family:var(--sans);font-size:11.5px;color:var(--ink-faint);background:none;border:0;cursor:pointer;padding:3px 7px;border-radius:6px}
.msg-actions button:hover{color:var(--ink);background:var(--surface-2)}
@media (pointer:coarse){.msg-actions button,.help-x,.newbtn,.tab,.btn-solid,.btn-ghost{min-height:44px}.help-x{min-width:44px}}

/* composer */
.composer-wrap{border-top:1px solid var(--rule);background:color-mix(in srgb,var(--surface) 82%,transparent);flex:none}
.composer{--col:780px;padding:14px 24px 6px;display:flex;gap:10px;align-items:flex-end}
textarea#input{flex:1;resize:none;font-family:var(--sans);font-size:15.5px;line-height:1.5;color:var(--ink);
  background:var(--paper);border:1px solid var(--rule-strong);border-radius:12px;padding:11px 14px;max-height:180px;min-height:46px}
textarea#input:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.send{font-family:var(--sans);font-weight:600;font-size:15px;border:0;border-radius:12px;background:var(--accent);color:var(--on-accent);padding:0 20px;height:46px;cursor:pointer}
.send:disabled{opacity:.45;cursor:default}
.hint{--col:780px;padding:0 24px 12px;font-size:12.5px;color:var(--ink-faint)}
.hint a{color:var(--ink-soft)}
.send:focus-visible,.newbtn:focus-visible,.menu-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* empty state */
.empty{max-width:640px;margin:7vh auto 0;text-align:center;color:var(--ink-soft);padding:0 20px}
.empty .eyebrow{font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--iron-soft);margin-bottom:12px}
.empty h1{font-family:var(--serif);font-weight:600;font-size:1.95rem;color:var(--ink);margin:0 0 .3em}
.empty > div > p{max-width:46ch;margin:0 auto}
.exgroups{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:26px;text-align:left}
@media(max-width:560px){.exgroups{grid-template-columns:1fr}.vlab{display:none}}
.exg .exh{font-family:var(--mono);font-size:10px;letter-spacing:.11em;text-transform:uppercase;color:var(--iron-soft);margin-bottom:8px}
.exg button{display:block;width:100%;font-family:var(--sans);font-size:13px;color:var(--ink-soft);background:var(--surface);
  border:1px solid var(--rule);border-radius:9px;padding:9px 12px;cursor:pointer;text-align:left;margin-bottom:7px;line-height:1.4}
.exg button:hover{border-color:var(--iron-soft);color:var(--ink)}

.gate{--col:780px;margin-top:0;margin-bottom:8px;padding:10px 14px;border:1px solid var(--rule-strong);border-radius:12px;background:var(--surface);
  color:var(--ink);font-size:14px;line-height:1.5;text-align:center}
.gate a,.gate button{color:var(--accent);font-weight:600;display:inline-flex;align-items:center;min-height:44px;padding:0 4px}
.gate button{font:inherit;font-weight:600;background:none;border:0;cursor:pointer;text-decoration:underline}
.gate button:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

/* ---------- modals (shared) ---------- */
.modal-bg{position:fixed;inset:0;background:rgba(20,22,30,.5);display:none;align-items:center;justify-content:center;z-index:50;padding:20px}
.modal-bg.open{display:flex}
.modal{background:var(--surface);border:1px solid var(--rule-strong);border-radius:16px;max-width:440px;width:100%;padding:24px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.modal h2{font-family:var(--serif);font-weight:600;font-size:1.35rem;margin:0 0 .3em}
.muted{color:var(--ink-soft)}.small{font-size:12px}
.modal .muted{font-size:13px;margin:0 0 16px}
.fld{display:flex;flex-direction:column;gap:5px;font-size:12.5px;font-weight:600;letter-spacing:.03em;
  text-transform:uppercase;color:var(--iron-soft);margin-bottom:15px}
.fld input,.fld select{font-family:var(--sans);font-weight:400;text-transform:none;letter-spacing:0;font-size:15px;
  color:var(--ink);background:var(--paper);border:1px solid var(--rule-strong);border-radius:9px;padding:9px 11px}
.fld input:focus,.fld select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.fld .muted{font-weight:400;text-transform:none;letter-spacing:0}
.fld a{color:var(--iron)}
.modal-actions{display:flex;align-items:center;gap:10px;margin-top:4px}
.modal-actions .spacer{flex:1}
.btn-solid{font-family:var(--sans);font-weight:600;font-size:14px;border:0;border-radius:9px;background:var(--accent);color:var(--on-accent);padding:9px 18px;cursor:pointer}
.btn-ghost{font-family:var(--sans);font-weight:600;font-size:14px;border:1px solid var(--rule-strong);border-radius:9px;background:var(--surface);color:var(--ink-soft);padding:9px 14px;cursor:pointer}
.btn-ghost:hover{color:var(--ink);border-color:var(--ink-faint)}

/* ---------- mobile ---------- */
@media(max-width:640px){
  .masthead{padding:8px 0 2px}
  .thread-h{position:static;justify-content:center;padding:2px 12px 6px;z-index:auto}
  /* pin the column to the viewport so the thread scrolls internally and the composer stays put */
  .col{min-height:0}
  /* let the thread scroll internally so the composer stays pinned above the bar */
  main.scroll{min-height:0}
  /* lift the composer and the AI disclaimer under it above the fixed bar */
  .hint{padding-bottom:calc(var(--rail-bar) + 12px)}
  /* studies drawer slides from the left edge and stops above the bar */
  .side{left:0;bottom:var(--rail-bar);width:min(320px,86%)}
}