/*
  SENNA MFI visual theme patch v2.2
  Visual-only: no API, database, crawler, report, or authentication logic.
*/

:root,
html[data-theme="snow"] {
  color-scheme: light;
  --bg:#f3f6fa;
  --s1:#ffffff;
  --s2:#f7f9fc;
  --s3:#edf2f7;
  --s4:#e4eaf1;
  --bd:#dce4ed;
  --bd2:#c7d2df;
  --w:#172033;
  --w90:#25354a;
  --w70:#526378;
  --w50:#68798d;
  --w40:#7d8da0;
  --cr:#c51f3a;
  --cr2:#db3150;
  --cr-g:rgba(197,31,58,.18);
  --cr-d:rgba(197,31,58,.075);
  --go:#986500;
  --bl:#0b6fae;
  --gr:#08795b;
  --vi:#6b4fc1;
  --or:#b9541b;
  --fd:"Segoe UI Variable Display","Segoe UI",Inter,Arial,sans-serif;
  --fb:"Segoe UI Variable Text","Segoe UI",Inter,Arial,sans-serif;
  --r:10px;
  --rl:16px;
  --shadow:0 15px 40px rgba(24,39,60,.09);
  --shell:min(1380px,calc(100% - 40px));
  --topbar-bg:rgba(255,255,255,.94);
  --hero-bg:linear-gradient(145deg,#ffffff 0%,#f7f9fc 62%,#eef3f8 100%);
  --panel-bg:rgba(255,255,255,.94);
  --soft-panel:#f8fafc;
  --muted-panel:#eef3f7;
  --footer-bg:#eaf0f6;
  --hover-bg:#f1f5f9;
  --input-bg:#ffffff;
  --dialog-backdrop:rgba(20,33,49,.34);
  --selection-bg:rgba(197,31,58,.16);
}

html[data-theme="light"] {
  color-scheme: light;
  --bg:#ffffff;
  --s1:#ffffff;
  --s2:#f8fafc;
  --s3:#f1f5f9;
  --s4:#e7edf4;
  --bd:#e2e8f0;
  --bd2:#cbd5e1;
  --w:#111827;
  --w90:#1f2937;
  --w70:#4b5563;
  --w50:#64748b;
  --w40:#7b8797;
  --cr:#b91c3b;
  --cr2:#cf2847;
  --cr-g:rgba(185,28,59,.13);
  --cr-d:rgba(185,28,59,.06);
  --go:#8a5a00;
  --bl:#075f99;
  --gr:#067457;
  --vi:#6043b5;
  --or:#a94715;
  --shadow:0 8px 24px rgba(15,23,42,.06);
  --topbar-bg:rgba(255,255,255,.98);
  --hero-bg:#ffffff;
  --panel-bg:#ffffff;
  --soft-panel:#fbfcfe;
  --muted-panel:#f5f7fa;
  --footer-bg:#f8fafc;
  --hover-bg:#f8fafc;
  --input-bg:#ffffff;
  --dialog-backdrop:rgba(15,23,42,.28);
  --selection-bg:rgba(185,28,59,.12);
}

html[data-theme="senna"] {
  color-scheme: dark;
  --bg:#0d1422;
  --s1:#151f30;
  --s2:#1b273a;
  --s3:#111a29;
  --s4:#26344a;
  --bd:rgba(226,232,240,.11);
  --bd2:rgba(226,232,240,.2);
  --w:#f3f6fa;
  --w90:#e6ebf2;
  --w70:#aab6c7;
  --w50:#8f9db0;
  --w40:#7b899d;
  --cr:#dc2347;
  --cr2:#f04a68;
  --cr-g:rgba(220,35,71,.24);
  --cr-d:rgba(220,35,71,.12);
  --go:#f0b429;
  --bl:#4ab5e8;
  --gr:#40c99a;
  --vi:#ae91f2;
  --or:#ff9b5a;
  --shadow:0 18px 48px rgba(0,0,0,.25);
  --topbar-bg:rgba(13,20,34,.94);
  --hero-bg:linear-gradient(145deg,#172235 0%,#111a29 70%,#0f1827 100%);
  --panel-bg:rgba(21,31,48,.94);
  --soft-panel:#1a2638;
  --muted-panel:#111b2a;
  --footer-bg:#080e18;
  --hover-bg:#1d2a3e;
  --input-bg:#111b2a;
  --dialog-backdrop:rgba(0,0,0,.7);
  --selection-bg:rgba(240,74,104,.24);
}

html { background:var(--bg); }
html::selection, body::selection { background:var(--selection-bg); }
body {
  min-height:100vh;
  background:
    radial-gradient(circle at 8% -6%,var(--cr-d),transparent 30%),
    radial-gradient(circle at 94% 8%,rgba(11,111,174,.055),transparent 27%),
    var(--bg) !important;
  color:var(--w);
  font-family:var(--fb) !important;
  font-size:15px;
  line-height:1.62;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}

html[data-theme="light"] body { background:#fff !important; }

h1,h2,h3,h4,h5,h6,
.brand strong,.hero-stats strong,.brain-stat strong,.coverage-card strong,.scan-summary strong,
.stat-icon,.nrb-rank,.grade,.graph-arrow,.version-card b {
  font-family:var(--fd) !important;
  text-transform:none !important;
  letter-spacing:-.025em !important;
}
h1 { font-size:clamp(42px,6vw,72px) !important; line-height:1.02 !important; font-weight:760 !important; margin-bottom:20px !important; }
h2 { font-size:clamp(29px,3.4vw,45px) !important; line-height:1.12 !important; font-weight:740 !important; }
h3 { font-size:21px !important; line-height:1.28 !important; font-weight:700 !important; }
p { text-wrap:pretty; }
.lead { color:var(--w70) !important; font-size:clamp(16px,1.5vw,19px) !important; line-height:1.72 !important; }
.eyebrow { color:var(--cr) !important; font-size:11px !important; letter-spacing:.11em !important; }

/* Header and theme selector */
.topbar {
  min-height:70px !important;
  padding-block:10px !important;
  background:var(--topbar-bg) !important;
  border-bottom-color:var(--bd) !important;
  box-shadow:0 5px 24px rgba(15,23,42,.055);
  backdrop-filter:blur(18px) saturate(145%) !important;
}
.brand-mark {
  width:42px !important;
  height:42px !important;
  border-radius:11px !important;
  background:linear-gradient(145deg,var(--cr2),var(--cr)) !important;
  box-shadow:0 8px 20px var(--cr-g) !important;
  color:#fff !important;
  font-size:24px !important;
}
.brand strong { font-size:19px !important; line-height:1.05 !important; letter-spacing:-.02em !important; }
.brand small { color:var(--w50) !important; letter-spacing:.18em !important; }
.nav { scrollbar-width:none; }
.nav::-webkit-scrollbar { display:none; }
.nav a {
  color:var(--w70) !important;
  border-radius:8px !important;
  padding:8px 10px !important;
  font-size:12px !important;
  font-weight:650 !important;
}
.nav a:hover { color:var(--w) !important; background:var(--hover-bg) !important; }
.top-actions { gap:9px !important; }
.platform-link,.icon-button,.secondary-button {
  background:var(--s1) !important;
  color:var(--w) !important;
  border-color:var(--bd2) !important;
  box-shadow:none !important;
}
.platform-link:hover,.icon-button:hover,.secondary-button:hover { border-color:var(--cr) !important; background:var(--cr-d) !important; }

.theme-switcher {
  display:flex;
  align-items:center;
  gap:4px;
  min-height:40px;
  padding:4px;
  border:1px solid var(--bd);
  border-radius:12px;
  background:var(--s2);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35);
}
.theme-switcher .theme-label {
  padding:0 6px 0 7px;
  color:var(--w50);
  font-size:10px;
  font-weight:750;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.theme-switcher button {
  display:flex;
  align-items:center;
  gap:6px;
  min-height:30px;
  padding:5px 8px;
  border:1px solid transparent;
  border-radius:8px;
  background:transparent;
  color:var(--w70);
  font-size:11px;
  font-weight:700;
  white-space:nowrap;
}
.theme-switcher button:hover { color:var(--w); background:var(--s1); }
.theme-switcher button.active {
  color:var(--w);
  border-color:var(--bd);
  background:var(--s1);
  box-shadow:0 2px 8px rgba(15,23,42,.07);
}
.theme-switcher .swatch {
  width:12px;
  height:12px;
  border-radius:50%;
  border:1px solid rgba(100,116,139,.3);
}
.theme-switcher [data-theme-choice="senna"] .swatch { background:linear-gradient(135deg,#111a29 52%,#dc2347 52%); }
.theme-switcher [data-theme-choice="snow"] .swatch { background:linear-gradient(135deg,#f3f6fa 52%,#c51f3a 52%); }
.theme-switcher [data-theme-choice="light"] .swatch { background:linear-gradient(135deg,#fff 52%,#cbd5e1 52%); }

/* Main surfaces */
main { padding-top:24px !important; }
.hero,.report-hero {
  min-height:auto !important;
  background:var(--hero-bg) !important;
  border-color:var(--bd) !important;
  box-shadow:var(--shadow) !important;
}
.hero { align-items:center !important; padding:clamp(28px,4.5vw,62px) !important; }
.hero-glow { opacity:.62; }
.ask-box {
  background:var(--panel-bg) !important;
  border-color:var(--bd2) !important;
  box-shadow:0 8px 24px rgba(15,23,42,.04);
  backdrop-filter:none !important;
}
.hero-stats article,.brain-stat,.stats-band article,.coverage-card,
.grade-grid article,.source-card,.history-card,.graph-node,.event-card,.task-row,
.pipeline-grid article,.report-row,.alert-card,.dictionary-card,.trend-points article,
.report-meta-grid article,.version-card,.fact {
  background:var(--s1) !important;
  border-color:var(--bd) !important;
  box-shadow:none !important;
}
.hero-stats article { min-height:125px !important; }
.hero-stats strong { font-size:38px !important; color:var(--w) !important; }
.hero-stats small,.stats-band small,.history-card small,.graph-node small,
.task-row small,.source-card p,.report-row p,.report-row small,.alert-card p,.alert-card small,
.dictionary-card small,.report-period span,.report-versions span { color:var(--w50) !important; }
.trust-strip { background:rgba(240,180,41,.08) !important; }
.answer-panel {
  background:linear-gradient(135deg,rgba(8,121,91,.07),var(--s1)) !important;
  border-color:rgba(8,121,91,.22) !important;
  box-shadow:var(--shadow) !important;
}
.panel { background:var(--panel-bg) !important; border-color:var(--bd) !important; box-shadow:none; }
.section { padding-top:76px !important; }
.section-head { align-items:flex-start !important; }
.section-head>div>p:last-child { color:var(--w70) !important; }

/* Controls */
label { color:var(--w50) !important; letter-spacing:.035em !important; }
input,select,textarea,.ask-row input {
  min-height:44px !important;
  background:var(--input-bg) !important;
  color:var(--w) !important;
  border-color:var(--bd2) !important;
  box-shadow:0 1px 2px rgba(15,23,42,.025);
}
input::placeholder,textarea::placeholder { color:var(--w40); opacity:.9; }
input:focus,select:focus,textarea:focus,.ask-row input:focus {
  border-color:var(--cr) !important;
  box-shadow:0 0 0 3px var(--cr-d) !important;
}
select option { background:var(--s1) !important; color:var(--w) !important; }
.primary-button {
  background:var(--cr) !important;
  color:#fff !important;
  border:1px solid var(--cr) !important;
  box-shadow:0 7px 17px var(--cr-g) !important;
}
.primary-button:hover { filter:none !important; background:var(--cr2) !important; }
.prompt-chips button,.segmented,.detail-tabs button,.status-badge,.evidence-locator {
  background:var(--s2) !important;
  border-color:var(--bd) !important;
  color:var(--w70) !important;
}
.prompt-chips button:hover,.detail-tabs button:hover { background:var(--s1) !important; color:var(--w) !important; }
.segmented button.active,.detail-tabs button.active { background:var(--cr) !important; color:#fff !important; border-color:var(--cr) !important; }

/* Cards, tables and information density */
.mfi-grid { gap:14px !important; }
.mfi-card {
  min-height:280px !important;
  background:var(--s1) !important;
  border-color:var(--bd) !important;
  box-shadow:0 5px 18px rgba(15,23,42,.035);
}
.mfi-card:after { opacity:.62; }
.mfi-card:hover,.report-row:hover,.history-card:hover {
  transform:translateY(-2px) !important;
  background:var(--s1) !important;
  border-color:rgba(197,31,58,.35) !important;
  box-shadow:0 12px 28px rgba(15,23,42,.08) !important;
}
.mfi-card h3 { font-size:20px !important; line-height:1.22 !important; }
.card-metrics span,.event-card,.task-row { background:var(--soft-panel) !important; }
.card-metrics strong,td strong,.scan-item a { color:var(--w) !important; }
.table-wrap { background:var(--s1) !important; border-color:var(--bd) !important; }
th { background:var(--s2) !important; color:var(--w50) !important; }
td { color:var(--w70) !important; }
th,td { border-bottom-color:var(--bd) !important; }
tbody tr:hover { background:var(--cr-d) !important; }
.lineage-board { background:var(--panel-bg) !important; }
.graph-node.current { border-color:rgba(8,121,91,.34) !important; }
.scan-column,.task-panel,.insight-panel { background:var(--panel-bg) !important; }
.coverage-bar,.confidence-meter,.peer-bar div { background:var(--s3) !important; }
.warning-box,.setup-banner {
  background:rgba(240,180,41,.09) !important;
  color:var(--w90) !important;
}

/* Report Brain */
.report-hero { padding:clamp(28px,4.5vw,64px) !important; }
.report-hero.compact { min-height:290px !important; }
.brain-orbit {
  background:radial-gradient(circle,var(--cr-d),transparent 62%),var(--soft-panel) !important;
  border:1px solid var(--bd);
  box-shadow:inset 0 0 70px rgba(11,111,174,.045) !important;
}
.brain-orbit span { color:#fff !important; }
.brain-orbit strong { color:#052e24 !important; }
.pipeline-grid article { background:var(--s1) !important; min-height:174px !important; }
.pipeline-grid h3 { margin-top:23px !important; }
.report-row { background:var(--s1) !important; }
.report-row:hover { background:var(--hover-bg) !important; }
.report-kind { background:rgba(11,111,174,.08) !important; color:var(--bl) !important; }
.narrative-card { background:var(--s1) !important; }
.selected-peer,.trend-summary { background:rgba(8,121,91,.055) !important; }
.peer-bar.selected { background:var(--cr-d) !important; }
.empty-system,.empty-state { color:var(--w50) !important; }
.review-blocker { background:var(--cr-d) !important; }
.review-blocker strong,.delta-down { color:var(--cr2) !important; }

/* Dialogs and footer */
.profile-dialog {
  background:var(--s1) !important;
  color:var(--w) !important;
  border-color:var(--bd2) !important;
  box-shadow:0 30px 80px rgba(15,23,42,.22) !important;
}
.profile-dialog::backdrop { background:var(--dialog-backdrop) !important; }
.dialog-close { background:var(--s2) !important; color:var(--w) !important; border-color:var(--bd2) !important; }
.profile-hero { background:var(--soft-panel) !important; border-bottom-color:var(--bd) !important; }
footer {
  background:var(--footer-bg) !important;
  color:var(--w70) !important;
  border-top-color:var(--bd) !important;
}
footer strong { color:var(--w); }
.toast { background:var(--s1) !important; color:var(--w) !important; border-color:var(--bd2) !important; }

/* Accessibility */
:focus-visible { outline:3px solid var(--cr-d); outline-offset:2px; }
@media (prefers-reduced-motion:reduce) {
  *,*::before,*::after { scroll-behavior:auto !important; transition-duration:.01ms !important; animation-duration:.01ms !important; animation-iteration-count:1 !important; }
}

@media (max-width:1120px) {
  .topbar { grid-template-columns:auto auto !important; justify-content:space-between; }
  .topbar .nav { grid-column:1/-1; grid-row:2; justify-content:flex-start !important; border-top:1px solid var(--bd); padding-top:7px; }
  .top-actions { justify-self:end; }
  .theme-switcher .theme-label { display:none; }
}

@media (max-width:760px) {
  :root { --shell:calc(100% - 24px); }
  .topbar { padding:9px 12px !important; gap:8px !important; }
  .brand small { display:none; }
  .brand-mark { width:37px !important; height:37px !important; }
  .top-actions { display:flex !important; }
  .top-actions>.platform-link,.top-actions>.icon-button { display:none !important; }
  .theme-switcher { max-width:58vw; overflow-x:auto; scrollbar-width:none; }
  .theme-switcher::-webkit-scrollbar { display:none; }
  .theme-switcher button { padding-inline:7px; }
  .theme-switcher button .theme-name { display:none; }
  .theme-switcher button.active .theme-name { display:inline; }
  .hero,.report-hero { border-radius:18px !important; }
  h1 { font-size:clamp(38px,12vw,54px) !important; }
  h2 { font-size:clamp(28px,8vw,39px) !important; }
  .section { padding-top:60px !important; }
}

@media (max-width:420px) {
  .theme-switcher button.active .theme-name { display:none; }
  .theme-switcher { max-width:138px; }
}