/* Legal AI frontend — Phase 5.5 presentation layer.
   Mobile-first, WCAG 2.1 AA, self-hosted assets only (no CDN, no runtime egress).
   Aesthetic: editorial "ink on warm paper" law-office. Status semantics are never
   conveyed by colour alone — every state also carries text and/or a glyph. */

/* ---------- self-hosted display font (subsetted DejaVu Serif, woff2) ---------- */
@font-face {
  font-family: "Counsel Serif";
  src: url("/static/fonts/dejavu-serif-regular.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Counsel Serif";
  src: url("/static/fonts/dejavu-serif-bold.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
}

/* ---------- design tokens ---------- */
:root {
  --paper:        #f4f1ea;
  --paper-raised: #fbf9f4;
  --paper-sunk:   #ece7db;
  --ink:          #1d2330;
  --ink-soft:     #4a5160;
  --rule:         #d7cfbf;
  --rule-strong:  #b9ae98;

  --navy:         #16335c;
  --navy-deep:    #0f2444;
  --navy-tint:    #e7edf5;

  --verify-bg:    #fde68a;  --verify-fg:  #4a3500;  --verify-bd: #c9962a;
  --cite-bg:      #cdebd6;  --cite-fg:    #14492a;  --cite-bd:   #6fb487;
  --currency-bg:  #f6e2cf;  --currency-fg:#6a3b12;  --currency-bd:#cf9a63;

  --draft-bg:     #fbeccd;  --draft-fg:   #7a4a00;  --draft-bd:  #d6a64e;
  --final-bg:     #d8efdf;  --final-fg:   #185c31;  --final-bd:  #66ad7e;
  --blocked-bg:   #f7dcdc;  --blocked-fg: #8a1f23;  --blocked-bd:#cf7a7c;
  --pending-bg:   #f3ead2;  --pending-fg: #6b5410;  --pending-bd:#c9b56a;
  --phi-bg:       #efe1f3;  --phi-fg:     #5a2d6b;  --phi-bd:    #b08bc0;

  --danger:       #9b2226;
  --danger-deep:  #6f181b;

  --font-display: "Counsel Serif", Georgia, "Times New Roman", serif;
  --font-body:    ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
                  "Helvetica Neue", Arial, sans-serif;
  --font-mono:    ui-monospace, "DejaVu Sans Mono", Menlo, Consolas, monospace;

  --tap: 44px;                 /* minimum touch target */
  --radius: 10px;
  --shadow: 0 1px 2px rgba(29,35,48,.06), 0 6px 18px rgba(29,35,48,.08);
  --maxw: 64rem;
}

/* ---------- reset / base (mobile-first) ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.55;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(255,255,255,.35), rgba(255,255,255,0) 220px),
    var(--paper);
  background-attachment: fixed;
  overflow-wrap: break-word;
  word-break: break-word;
}
h1, h2, h3 { font-family: var(--font-display); line-height: 1.2; color: var(--navy-deep); margin: 0 0 .4em; }
h1 { font-size: 1.4rem; letter-spacing: .2px; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1.05rem; }
a { color: var(--navy); }
p { margin: 0 0 .8em; }

/* visible focus for keyboard users on every interactive element */
:focus-visible {
  outline: 3px solid var(--navy);
  outline-offset: 2px;
  border-radius: 4px;
}

/* skip link */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--navy); color: #fff; padding: .7rem 1rem; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

.is-hidden { display: none !important; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 1.5rem; }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- layout shell ---------- */
.app-header {
  position: sticky; top: 0; z-index: 20;
  display: flex; flex-wrap: wrap; gap: .5rem 1rem;
  align-items: center; justify-content: space-between;
  padding: .7rem 1rem;
  background: var(--navy-deep);
  color: #f4f1ea;
  border-bottom: 3px solid #c9962a;
}
.app-header .brand { font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; color: #fff; }
.app-header .brand small { display:block; font-family: var(--font-body); font-weight: 400; font-size: .72rem; color: #c7d2e2; letter-spacing: .04em; text-transform: uppercase; }
.app-header .who { display: flex; align-items: center; gap: .6rem; font-size: .9rem; color: #dde5f0; }
.app-header .who b { color: #fff; }

main { max-width: var(--maxw); margin: 0 auto; padding: 1rem; }

/* ---------- tabs (mobile-first, keyboard accessible) ---------- */
.tabs {
  display: flex; gap: .35rem; margin: .25rem 0 1rem;
  background: var(--paper-sunk); padding: .3rem; border-radius: var(--radius);
  position: sticky; top: 58px; z-index: 10;
}
.tab {
  flex: 1 1 auto; min-height: var(--tap);
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  font-family: var(--font-body); font-size: .95rem; font-weight: 600;
  color: var(--ink-soft); background: transparent;
  border: 0; border-radius: 8px; cursor: pointer; padding: .4rem .5rem;
}
.tab[aria-selected="true"] { background: var(--paper-raised); color: var(--navy-deep); box-shadow: var(--shadow); }
.tab .count { font-size: .75rem; background: var(--navy); color:#fff; border-radius: 999px; padding: 0 .45rem; min-width: 1.3rem; text-align:center; }

/* ---------- cards / lists ---------- */
.stack > * + * { margin-top: .75rem; }
.card {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
}
.card h3 { margin-bottom: .25rem; }
.card .meta { color: var(--ink-soft); font-size: .9rem; }
.card .row { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; justify-content: space-between; }
.matter-no { font-family: var(--font-mono); font-weight: 700; color: var(--navy-deep); }
.empty { color: var(--ink-soft); font-style: italic; padding: 1rem; }

/* ---------- badges / safety flags ---------- */
.badge {
  display: inline-flex; align-items: center; gap: .3rem;
  font-size: .78rem; font-weight: 700; line-height: 1;
  padding: .35rem .55rem; border-radius: 999px; border: 1px solid;
  white-space: nowrap;
}
.badge::before { font-weight: 700; }
.badge-draft   { background: var(--draft-bg);   color: var(--draft-fg);   border-color: var(--draft-bd); }
.badge-draft::before   { content: "✎"; }
.badge-final   { background: var(--final-bg);   color: var(--final-fg);   border-color: var(--final-bd); }
.badge-final::before   { content: "✓"; }
.badge-blocked { background: var(--blocked-bg); color: var(--blocked-fg); border-color: var(--blocked-bd); }
.badge-blocked::before { content: "⛔"; }
.badge-pending { background: var(--pending-bg); color: var(--pending-fg); border-color: var(--pending-bd); }
.badge-pending::before { content: "◷"; }
.badge-cleared { background: var(--final-bg);   color: var(--final-fg);   border-color: var(--final-bd); }
.badge-cleared::before { content: "✓"; }
.badge-phi     { background: var(--phi-bg);     color: var(--phi-fg);     border-color: var(--phi-bd); }
.badge-phi::before     { content: "✦"; }

/* draft body highlight spans (safety-critical, must be unmistakable) */
.flag-verify {
  background: var(--verify-bg); color: var(--verify-fg);
  border: 1px solid var(--verify-bd); border-radius: 4px;
  padding: 0 .25rem; font-weight: 700;
}
.flag-cite {
  background: var(--cite-bg); color: var(--cite-fg);
  border: 1px solid var(--cite-bd); border-radius: 4px; padding: 0 .25rem;
}
.flag-currency {
  background: var(--currency-bg); color: var(--currency-fg);
  border: 1px solid var(--currency-bd); border-radius: 4px; padding: 0 .25rem; font-weight: 600;
}

/* Phase E: a RESOLVED citation becomes clickable provenance. Styled like the .flag-cite
   chip but interactive (button keeps the chip look; <a> for the external case link). */
.cite-link {
  background: var(--cite-bg); color: var(--cite-fg);
  border: 1px solid var(--cite-bd); border-radius: 4px; padding: 0 .25rem;
  font: inherit; cursor: pointer; text-decoration: underline; text-underline-offset: 2px;
}
.cite-link:hover, .cite-link:focus-visible { filter: brightness(.94); }
a.cite-link { display: inline-block; }
/* an UNRESOLVED citation is never linked — it is flagged as unverified */
.cite-unresolved {
  background: var(--cite-bg); color: var(--cite-fg);
  border: 1px dashed var(--currency-bd); border-radius: 4px; padding: 0 .25rem;
  text-decoration: underline dotted; text-underline-offset: 2px;
}
.cite-warn { color: var(--currency-fg); font-weight: 700; }

/* Item 7c: case citations get the SAME chip as statutes so they read as checkable provenance. */
.flag-case {
  background: var(--cite-bg); color: var(--cite-fg);
  border: 1px solid var(--cite-bd); border-radius: 4px; padding: 0 .25rem;
}
/* Item 7a: a visible legend under the safety banner explaining every flag/icon. */
.cite-legend {
  font-size: .85rem; color: var(--fg-muted, #555); line-height: 1.4;
  margin-top: .35rem; width: 100%;
}
/* elements carrying a hover explanation get a subtle affordance so users know to hover */
[title].flag-case, [title].cite-unresolved, [title].cite-link { cursor: help; }

/* safety banner above any legal output */
.safety-banner {
  display: flex; flex-wrap: wrap; gap: .5rem .9rem; align-items: center;
  background: var(--draft-bg); border: 1px solid var(--draft-bd);
  border-left: 6px solid var(--draft-bd);
  color: var(--draft-fg); border-radius: 8px; padding: .6rem .8rem;
  font-size: .9rem; font-weight: 600;
}
.safety-banner .tally { display: inline-flex; gap: .35rem; align-items: center; }

/* ---------- forms ---------- */
label { display: block; font-weight: 600; margin: .6rem 0 .25rem; }
input, select, textarea {
  width: 100%; font: inherit; color: var(--ink);
  padding: .6rem .65rem; min-height: var(--tap);
  background: #fff; border: 1px solid var(--rule-strong); border-radius: 8px;
}
textarea { min-height: 7rem; resize: vertical; line-height: 1.5; }
.hint { color: var(--ink-soft); font-size: .85rem; margin: .2rem 0 0; }

/* ---------- buttons (>=44px touch targets) ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  min-height: var(--tap); min-width: var(--tap);
  font: inherit; font-weight: 600; cursor: pointer;
  padding: .55rem 1rem; border-radius: 8px; border: 1px solid transparent;
  text-decoration: none;
}
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-deep); }
.btn-secondary { background: var(--paper-sunk); color: var(--navy-deep); border-color: var(--rule-strong); }
.btn-secondary:hover { background: #e2dccd; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-deep); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn-block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: .5rem; }

/* ---------- dialogs (native <dialog>, focus-trapped, Esc to close) ---------- */
dialog {
  width: min(46rem, 96vw);
  max-width: 96vw;
  max-height: 92dvh;
  padding: 0; border: 1px solid var(--rule-strong); border-radius: 12px;
  background: var(--paper-raised); color: var(--ink); box-shadow: var(--shadow);
  overflow: hidden;
}
dialog::backdrop { background: rgba(15,36,68,.45); }
.dialog-head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: .75rem;
  padding: 1rem; border-bottom: 1px solid var(--rule); position: sticky; top: 0;
  background: var(--paper-raised);
}
.dialog-body { padding: 1rem; overflow: auto; max-height: 62dvh; }
.dialog-foot {
  padding: 1rem; border-top: 1px solid var(--rule); background: var(--paper-sunk);
  display: flex; flex-direction: column; gap: .75rem;
}
.iconbtn {
  min-width: var(--tap); min-height: var(--tap);
  border: 0; background: transparent; cursor: pointer; font-size: 1.4rem; line-height: 1;
  color: var(--ink-soft); border-radius: 8px;
}

/* the deliberate-approval confirmation block */
.approve-gate {
  background: var(--final-bg); border: 1px solid var(--final-bd); border-radius: 8px;
  padding: .75rem;
}
.approve-gate.danger { background: #fff; border-color: var(--rule-strong); }
.confirm-line { display: flex; gap: .6rem; align-items: flex-start; }
.confirm-line input[type="checkbox"] {
  width: 1.4rem; height: 1.4rem; min-height: auto; flex: 0 0 auto; margin-top: .15rem; accent-color: var(--navy);
}
.confirm-line label { margin: 0; font-weight: 600; }

/* case-verification panel (Phase D) */
.case-verify { border: 1px solid var(--rule); border-radius: 8px; padding: .8rem; background: #fffdf8; }
.case-verify-head { display: flex; align-items: center; justify-content: space-between; gap: .6rem; }
.case-verify-title { margin: 0; font-size: 1rem; }
.case-list { list-style: none; margin: .6rem 0 0; padding: 0; }
.case-row { padding: .7rem 0; border-bottom: 1px solid var(--rule); display: flex; flex-direction: column; gap: .35rem; }
.case-row:last-child { border-bottom: 0; }
.case-row-head { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.case-cite { font-family: var(--font-mono); font-weight: 700; }
.case-src { word-break: break-all; }
.case-currency { font-style: italic; }

/* draft content — rendered as escaped, whitespace-preserved text (no markdown->HTML) */
.draft {
  font-family: var(--font-mono); font-size: .92rem; line-height: 1.6;
  white-space: pre-wrap; word-break: break-word;
  background: #fffdf8; border: 1px solid var(--rule); border-radius: 8px; padding: .9rem;
}

/* documents list inside matter dialog */
.doc-item { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; justify-content: space-between;
  padding: .6rem 0; border-bottom: 1px solid var(--rule); }
.doc-item:last-child { border-bottom: 0; }
.doc-name { font-family: var(--font-mono); font-size: .9rem; word-break: break-all; }

/* Item 4: rich document rows (title / tags / actions / inline editor) */
.doc-item-rich { align-items: flex-start; }
.doc-main { flex: 1 1 60%; min-width: 0; }
.doc-title { font-weight: 600; word-break: break-word; }
.doc-sub { font-family: var(--font-mono); font-size: .8rem; word-break: break-all; }
.doc-summary { font-style: italic; }
.doc-tags { display: flex; flex-wrap: wrap; gap: .3rem; margin-top: .3rem; }
.doc-actions { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.doc-editor { flex: 1 1 100%; margin-top: .5rem; padding-top: .5rem; border-top: 1px dashed var(--rule); }
.tag-picker { display: flex; flex-wrap: wrap; gap: .5rem .9rem; }
.tag-opt { display: inline-flex; align-items: center; gap: .25rem; font-size: .9rem; }
.badge-tag { background: var(--pending-bg); color: var(--pending-fg); border-color: var(--pending-bd); }
/* Item 3: a positive, persistent upload/success confirmation (mirrors the .alert failure style) */
.ok-msg { background: var(--cite-bg); color: var(--cite-fg); border: 1px solid var(--cite-bd);
  border-radius: 6px; padding: .5rem .7rem; margin-top: .5rem; }

/* toast / live region */
.toast {
  position: fixed; left: 50%; bottom: 1rem; transform: translateX(-50%);
  max-width: 92vw; background: var(--navy-deep); color: #fff;
  padding: .7rem 1rem; border-radius: 8px; box-shadow: var(--shadow); font-weight: 600;
}
.alert { background: var(--blocked-bg); color: var(--blocked-fg); border: 1px solid var(--blocked-bd);
  border-radius: 8px; padding: .6rem .8rem; }

/* ---------- auth pages ---------- */
.auth-wrap { min-height: 100dvh; display: grid; place-items: center; padding: 1.25rem; }
.auth-card {
  width: min(26rem, 100%); background: var(--paper-raised);
  border: 1px solid var(--rule); border-top: 4px solid #c9962a;
  border-radius: 14px; box-shadow: var(--shadow); padding: 1.5rem;
}
.auth-card .brand { font-family: var(--font-display); font-size: 1.5rem; color: var(--navy-deep); }
.auth-card .sub { color: var(--ink-soft); font-size: .9rem; margin-top: -.2rem; }

/* ---------- responsive breakpoints ---------- */
@media (min-width: 40rem) {            /* tablet */
  h1 { font-size: 1.6rem; }
  main { padding: 1.5rem; }
  .matters-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .75rem; }
  .matters-grid .card { margin: 0; }
  .dialog-foot { flex-direction: row; align-items: center; justify-content: space-between; }
}
@media (min-width: 64rem) {            /* desktop */
  main { padding: 2rem 1.5rem; }
  .tabs { top: 60px; }
  .request-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
  .request-grid .full { grid-column: 1 / -1; }
}

/* ---------- document upload (Phase F) ---------- */
.upload-form { margin-top: .5rem; padding: 1rem; }
.upload-form .up-row { margin-bottom: .6rem; }
.upload-form .up-lbl { display: block; font-size: .85rem; color: var(--ink-soft); margin-bottom: .2rem; }
.upload-form input[type="file"] { max-width: 100%; }
.upload-form select { padding: .35rem .5rem; border: 1px solid var(--rule); border-radius: 8px; background: var(--paper); }
.upload-form .up-phi { display: inline-flex; align-items: center; gap: .4rem; font-size: .9rem; }
.upload-form .up-result { margin-top: .5rem; }

/* respect reduced motion + dark-scheme nicety (kept high-contrast) */
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }

/* ---------- per-matter workspace page (Phase G2) ---------- */
.back-row { margin: 0 0 .5rem; }
.back-link { color: var(--navy); text-decoration: none; font-weight: 600; }
.back-link:hover { text-decoration: underline; }
.ws-section { margin-bottom: 1.5rem; }
.ws-note { margin: 1rem 0 .5rem; }
#matter-head h1 { margin-bottom: .25rem; }
#matter-head .badge { margin-top: .25rem; }
.ws-threads { display: block; }
.thread-panel { background: var(--paper-raised); border: 1px solid var(--rule); border-radius: var(--radius); padding: 1rem; margin-bottom: 1.25rem; }
.thread-panel .panel-head { display: flex; align-items: center; justify-content: space-between; gap: .75rem; margin-bottom: .75rem; }
.thread-panel .panel-head h2 { margin: 0; font-size: 1.15rem; }
.thread-cols { display: block; }
.thread-list { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: .75rem; }
.thread-pill { border: 1px solid var(--rule-strong); background: var(--paper); color: var(--ink); border-radius: 999px;
  padding: .35rem .8rem; font: inherit; cursor: pointer; min-height: 0; }
.thread-pill:hover { background: var(--navy-tint); border-color: var(--navy); }
.thread-view { border-top: 1px solid var(--rule); padding-top: .75rem; }
.thread-title { margin: 0 0 .5rem; font-size: 1rem; color: var(--ink-soft); }
.transcript { display: flex; flex-direction: column; gap: .6rem; margin-bottom: .75rem; }
.bubble { border: 1px solid var(--rule); border-radius: var(--radius); padding: .6rem .8rem; background: var(--paper); }
.bubble-user { background: var(--navy-tint); border-color: var(--navy); }
.bubble-assistant { background: var(--paper-raised); }
.bubble-who { font-size: .75rem; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-soft); margin-bottom: .25rem; }
.bubble-body { white-space: pre-wrap; word-wrap: break-word; font-family: var(--font-body); }
.bubble-body.working { color: var(--ink-soft); font-style: italic; }
.bubble-body.alert { background: none; border: 0; padding: 0; color: var(--blocked-fg); }
.draft-link { display: flex; align-items: center; gap: .6rem; margin-top: .6rem; flex-wrap: wrap; }
.composer { padding: .75rem; margin-top: .25rem; }
.composer .comp-row { margin-bottom: .5rem; }
.composer textarea { width: 100%; box-sizing: border-box; padding: .5rem; border: 1px solid var(--rule); border-radius: 8px;
  background: var(--paper); font: inherit; resize: vertical; }
.composer select { padding: .35rem .5rem; border: 1px solid var(--rule); border-radius: 8px; background: var(--paper); }
.composer .comp-msg { margin-top: .5rem; }

@media (min-width: 64rem) {
  .ws-threads { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; align-items: start; }
  .thread-panel { margin-bottom: 0; }
}

/* ---------- Word round-trip: replace draft from edited .docx (Phase G3) ---------- */
.revise { border: 1px solid var(--rule); border-radius: 8px; padding: 0.75rem 0.9rem; background: var(--paper); }
.revise-title { margin: 0 0 0.25rem; font-size: 0.95rem; }
.revise-row { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; margin-top: 0.5rem; }
.revise-row input[type="file"] { font-size: 0.85rem; max-width: 100%; }
.revise-note { margin-top: 0.5rem; color: var(--navy); }
.revise-list { list-style: none; margin: 0.6rem 0 0; padding: 0; }
.revise-item { font-size: 0.8rem; color: #555; padding: 0.15rem 0; border-top: 1px dashed var(--rule); }
.revise-item:first-child { border-top: 0; }