/* =====================================================================
 * EQSFA — Maths in Health editorial theme
 * Cream paper · warm charcoal ink · four earth-tone accents
 * Fraunces (display) + IBM Plex Sans (body) + IBM Plex Mono (numbers)
 * Square corners, no shadows. Warmth from paper + serif type.
 * ===================================================================== */

@import url("https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,400;1,9..144,500&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500;600&display=swap");

:root {
  /* ink / paper */
  --mih-ink:        #2c2825;
  --mih-ink-soft:   #4a423d;
  --mih-ink-faint:  #6b625b;
  --mih-paper:      #f6f2ea;
  --mih-paper-deep: #ede5d6;
  --mih-paper-warm: #f3ece0;
  --mih-paper-edge: #cfc4ae;
  /* accents */
  --mih-rust:       #b85c3c;
  --mih-rust-deep:  #94472d;
  --mih-moss:       #5a6b3f;
  --mih-moss-deep:  #44542d;
  --mih-teal:       #3d6168;
  --mih-teal-deep:  #2b474c;
  --mih-gold:       #c79547;
  --mih-gold-deep:  #a17630;
  --mih-ash:        #b8b0a3;
  /* type */
  --mih-display: "Fraunces", Cambria, "EB Garamond", Georgia, serif;
  --mih-body:    "IBM Plex Sans", Calibri, "Source Sans 3", system-ui, sans-serif;
  --mih-mono:    "IBM Plex Mono", Consolas, "JetBrains Mono", monospace;
}

/* ============ Page atmosphere ============ */
html, body {
  margin: 0;
  background: var(--mih-paper);
  color: var(--mih-ink);
  font-family: var(--mih-body);
  font-size: 14.5px;
  line-height: 1.55;
  letter-spacing: 0.005em;
  font-feature-settings: "ss01", "cv11";
}

/* Two faint radial washes for depth */
body::before {
  content: "";
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(800px 600px at 12% -8%,
      rgba(199, 149, 71, 0.05), transparent 70%),
    radial-gradient(900px 700px at 110% 110%,
      rgba(61, 97, 104, 0.06), transparent 70%);
}

/* Paper-grain noise overlay (~35% opacity, multiply) */
body::after {
  content: "";
  position: fixed; inset: 0; pointer-events: none; z-index: 1;
  opacity: 0.30; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.17  0 0 0 0 0.16  0 0 0 0 0.14  0 0 0 0.05 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* Sit page content above the overlays */
.navbar, .container-fluid, .well, .tab-content, .tab-pane {
  position: relative; z-index: 2;
}

/* ============ Type ============ */
h1, h2, h3, h4, h5 {
  font-family: var(--mih-display);
  font-weight: 500;
  letter-spacing: -0.008em;
  color: var(--mih-ink);
  margin-top: 1.1em; margin-bottom: 0.45em;
}
h1 { letter-spacing: -0.012em; font-size: 2.2rem; }
h2 { font-size: 1.55rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; font-weight: 600; font-family: var(--mih-body); letter-spacing: 0.01em; }
h5 { font-size: 0.92rem; font-weight: 600; font-family: var(--mih-body); letter-spacing: 0.02em;
     text-transform: uppercase; color: var(--mih-ink-faint); }

p { margin: 0.45em 0 0.7em; color: var(--mih-ink-soft); }
em, i { font-family: var(--mih-display); font-style: italic; color: var(--mih-gold-deep); }
strong, b { font-weight: 600; color: var(--mih-ink); }
a { color: var(--mih-rust-deep); text-decoration: none;
    border-bottom: 1px solid rgba(184,92,60,0.28); padding-bottom: 1px; }
a:hover { color: var(--mih-rust); border-bottom-color: var(--mih-rust); }
code, kbd, samp { font-family: var(--mih-mono); font-size: 0.9em;
                  background: var(--mih-paper-deep);
                  padding: 1px 5px; border-radius: 0; color: var(--mih-rust-deep); }
hr { border: 0; border-top: 1px solid var(--mih-paper-edge); margin: 22px 0; height: 1px; }

/* ============ Navbar — editorial masthead ============ */
.navbar.navbar-default {
  background: linear-gradient(180deg, #221f1c, var(--mih-ink));
  border: 0; border-radius: 0; margin-bottom: 0;
  position: relative; min-height: 64px; padding: 0;
}
/* Four-stripe accent rule */
.navbar.navbar-default::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -6px;
  height: 6px; opacity: 0.92;
  background: linear-gradient(90deg,
    var(--mih-rust) 0 25%, var(--mih-gold) 25% 50%,
    var(--mih-moss) 50% 75%, var(--mih-teal) 75% 100%);
}
.navbar.navbar-default .navbar-brand,
.navbar.navbar-default .navbar-brand:hover,
.navbar.navbar-default .navbar-brand:focus {
  color: var(--mih-paper);
  font-family: var(--mih-display);
  font-weight: 400;
  font-size: 1.25rem;
  letter-spacing: -0.012em;
  padding: 22px 22px 22px 28px;
  border-bottom: 0;
}
.navbar.navbar-default .navbar-brand::before {
  content: "EQ-5D SFA · ";
  font-family: var(--mih-mono);
  font-size: 0.65rem; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--mih-gold);
  display: inline-block; margin-right: 14px;
  vertical-align: middle;
  border-right: 1px solid rgba(246,242,234,0.18);
  padding-right: 16px;
}
.navbar.navbar-default .navbar-brand em,
.navbar.navbar-default .navbar-brand i { color: var(--mih-gold); font-style: italic; }
.navbar.navbar-default .navbar-nav > li > a {
  color: rgba(246,242,234,0.78);
  font-family: var(--mih-body);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 24px 16px;
  border-bottom: 2px solid transparent;
}
.navbar.navbar-default .navbar-nav > li > a:hover {
  background: transparent; color: var(--mih-paper);
  border-bottom-color: rgba(199, 149, 71, 0.4);
}
.navbar.navbar-default .navbar-nav > .active > a,
.navbar.navbar-default .navbar-nav > .active > a:hover,
.navbar.navbar-default .navbar-nav > .active > a:focus {
  background: transparent; color: var(--mih-paper);
  border-bottom-color: var(--mih-rust);
}

/* ============ Sidebar / well / cards ============ */
.well, .panel, .sidebar-panel, .main-panel {
  background: var(--mih-paper-deep);
  border: 0; border-radius: 0; box-shadow: none;
}
.sidebarPanel, .col-sm-4.well {
  background: var(--mih-paper-deep);
  border-left: 3px solid var(--mih-teal);
  padding: 22px 22px 26px;
  margin-top: 28px;
}
.col-sm-8, .col-sm-12 .tab-content { padding-top: 12px; padding-left: 24px; }

/* Tab content gets gentle paper edge */
.tab-content { padding-top: 14px; }
.tab-pane { padding: 6px 0 28px; }

/* ============ Form controls ============ */
.form-control, .selectize-input, .selectize-dropdown {
  background: var(--mih-paper);
  border: 1px solid var(--mih-paper-edge);
  border-radius: 0; box-shadow: none;
  color: var(--mih-ink);
  font-family: var(--mih-body);
  font-size: 0.92rem;
  height: 34px; padding: 6px 10px;
}
.form-control:focus, .selectize-input.focus {
  outline: 0;
  border-color: var(--mih-rust);
  box-shadow: 0 0 0 2px rgba(184,92,60,0.18);
}
textarea.form-control { font-family: var(--mih-mono); font-size: 0.85rem; height: auto; }
.control-label, label { color: var(--mih-ink); font-weight: 500;
                        font-size: 0.88rem; letter-spacing: 0.01em;
                        margin-bottom: 4px; }
.help-block, .shiny-input-container > .control-label + .help-block,
.help-block.shiny-html-output { color: var(--mih-ink-faint); font-size: 0.83rem;
                                line-height: 1.45; letter-spacing: 0.005em; }
.radio label, .checkbox label { font-weight: 400; color: var(--mih-ink-soft); }
input[type="radio"], input[type="checkbox"] { accent-color: var(--mih-rust); }
.selectize-input.items.full {
  background: var(--mih-paper);
}
.selectize-dropdown-content .active { background: var(--mih-paper-warm); color: var(--mih-ink); }
.selectize-control.single .selectize-input.dropdown-active::before {
  background: transparent;
}

/* ============ Buttons ============ */
.btn, .btn-default {
  background: transparent; border: 1px solid var(--mih-ink);
  color: var(--mih-ink);
  border-radius: 0; box-shadow: none;
  font-family: var(--mih-body); font-weight: 500;
  font-size: 0.88rem; letter-spacing: 0.04em;
  padding: 7px 18px;
  transition: background 0.15s ease, color 0.15s ease;
}
.btn:hover, .btn-default:hover {
  background: var(--mih-paper-deep); color: var(--mih-ink);
  border-color: var(--mih-ink);
}
.btn:focus { outline: 0; box-shadow: 0 0 0 2px rgba(184,92,60,0.25); }
.btn-primary, .btn-danger, .btn-success, .btn-info,
.btn[id$="run_model"], .btn[id$="load_test"] {
  background: var(--mih-rust); border-color: var(--mih-rust);
  color: var(--mih-paper);
}
.btn-primary:hover, .btn-danger:hover, .btn-success:hover, .btn-info:hover,
.btn[id$="run_model"]:hover, .btn[id$="load_test"]:hover {
  background: var(--mih-rust-deep); border-color: var(--mih-rust-deep);
  color: var(--mih-paper);
}
.btn-sm, .btn-xs { padding: 5px 12px; font-size: 0.78rem; }

/* Download buttons */
.btn[id^="dl_"], .btn[id^="downloadButton"], .shiny-download-link {
  background: var(--mih-ink); color: var(--mih-paper); border-color: var(--mih-ink);
}
.btn[id^="dl_"]:hover, .btn[id^="downloadButton"]:hover, .shiny-download-link:hover {
  background: var(--mih-rust-deep); border-color: var(--mih-rust-deep);
  color: var(--mih-paper);
}

/* File input */
.input-group .form-control { border-right: 0; }
.input-group .btn { border-radius: 0; }
.shiny-input-container .input-group { border-radius: 0; }

/* ============ Tables / DataTables ============ */
table, .table { border-collapse: collapse; width: 100%; }
.dataTables_wrapper { background: transparent; }
.dataTables_wrapper table.dataTable thead th,
.table > thead > tr > th,
table.dataTable thead th {
  font-family: var(--mih-mono); font-weight: 600;
  font-size: 0.72rem; letter-spacing: 0.10em; text-transform: uppercase;
  color: var(--mih-ink-faint);
  background: var(--mih-paper-deep);
  border-bottom: 2px solid var(--mih-ink) !important;
  border-top: 0; padding: 10px 12px; text-align: left;
}
.dataTables_wrapper table.dataTable tbody td,
.table > tbody > tr > td,
table.dataTable tbody td {
  font-family: var(--mih-body);
  font-size: 0.88rem; color: var(--mih-ink);
  border-top: 1px solid var(--mih-paper-edge);
  padding: 9px 12px;
}
.dataTables_wrapper table.dataTable tbody tr:nth-child(odd) td,
.table-striped > tbody > tr:nth-child(odd) > td {
  background: var(--mih-paper);
}
.dataTables_wrapper table.dataTable tbody tr:nth-child(even) td,
.table-striped > tbody > tr:nth-child(even) > td {
  background: var(--mih-paper-deep);
}
.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
  background: var(--mih-paper); border: 1px solid var(--mih-paper-edge);
  border-radius: 0; padding: 4px 8px;
  font-family: var(--mih-mono); font-size: 0.78rem;
}
/* Numbers in tables: prefer mono */
td:has(> .num), td.num, td.dt-right, td[data-type="number"] {
  font-family: var(--mih-mono); font-feature-settings: "tnum";
}

/* ============ Verbatim / code output ============ */
pre, .shiny-text-output, .well > pre {
  background: var(--mih-ink); color: #e6dcc8;
  border: 0; border-left: 3px solid var(--mih-gold);
  border-radius: 0;
  padding: 14px 18px;
  font-family: var(--mih-mono); font-size: 0.8rem;
  line-height: 1.55;
  white-space: pre-wrap;
  overflow-x: auto;
}
.shiny-output-error { color: var(--mih-rust-deep);
                      background: var(--mih-paper-warm);
                      border-left: 3px solid var(--mih-rust);
                      padding: 12px 16px; font-family: var(--mih-mono); }
.shiny-output-error::before { content: "Error · ";
                              font-weight: 600; letter-spacing: 0.08em;
                              text-transform: uppercase;
                              font-size: 0.75rem; color: var(--mih-rust-deep); }

/* ============ Radio / checkbox groups arranged vertically ============ */
.shiny-options-group { padding: 4px 0; }
.shiny-options-group .radio, .shiny-options-group .checkbox { margin: 3px 0; }

/* ============ Eyebrow kicker helper ============ */
.eyebrow { font-family: var(--mih-mono); font-weight: 500;
           font-size: 0.65rem; letter-spacing: 0.22em;
           text-transform: uppercase; color: var(--mih-gold-deep);
           margin-bottom: 6px; display: block; }

/* ============ Custom: vs_reference card (rendered in app) ============ */
.vs-ref {
  background: var(--mih-paper-warm);
  border-left: 3px solid var(--mih-teal);
  padding: 14px 18px;
  margin: 12px 0 18px;
  font-size: 0.88rem;
  line-height: 1.5;
}
.vs-ref b { font-family: var(--mih-display); font-weight: 500; font-size: 1rem; }

/* ============ tabsetPanel pills (inner tabs in Generated Code / Results) ============ */
.nav-tabs {
  border-bottom: 1px solid var(--mih-paper-edge);
}
.nav-tabs > li > a {
  font-family: var(--mih-body); font-weight: 500;
  color: var(--mih-ink-faint);
  border-radius: 0;
  border: 0; border-bottom: 2px solid transparent;
  padding: 8px 16px;
  font-size: 0.88rem;
  background: transparent !important;
  margin-right: 6px;
}
.nav-tabs > li > a:hover { color: var(--mih-ink);
                           border-bottom-color: rgba(199, 149, 71, 0.45); }
.nav-tabs > li.active > a,
.nav-tabs > li.active > a:hover,
.nav-tabs > li.active > a:focus {
  color: var(--mih-rust-deep);
  background: transparent !important;
  border: 0; border-bottom: 2px solid var(--mih-rust) !important;
}

/* ============ Footer ============ */
.mih-footer {
  position: relative;
  z-index: 2;
  background: var(--mih-ink);
  color: var(--mih-paper-deep);
  margin-top: 60px;
  padding: 22px 30px 22px;
}
.mih-footer::before {
  content: "";
  display: block;
  position: absolute; left: 0; right: 0; top: -6px;
  height: 6px; opacity: 0.92;
  background: linear-gradient(90deg,
    var(--mih-rust) 0 25%, var(--mih-gold) 25% 50%,
    var(--mih-moss) 50% 75%, var(--mih-teal) 75% 100%);
}
.mih-footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
  max-width: 1480px; margin: 0 auto;
}
.mih-powered {
  display: flex; align-items: center; gap: 14px;
  text-decoration: none; border-bottom: 0;
  color: var(--mih-paper);
}
.mih-powered .eyebrow { color: var(--mih-gold); margin: 0; }
.mih-powered img { height: 32px; width: auto; display: block; }
.mih-powered:hover { color: var(--mih-paper); border: 0; }
.mih-meta {
  font-family: var(--mih-mono);
  font-size: 0.72rem;
  letter-spacing: 0.10em;
  color: var(--mih-ink-faint);
  color: rgba(246,242,234,0.45);
  text-transform: uppercase;
}

/* ============ Notification (Shiny) ============ */
.shiny-notification {
  background: var(--mih-paper);
  border: 1px solid var(--mih-paper-edge); border-left: 3px solid var(--mih-rust);
  border-radius: 0; color: var(--mih-ink);
  font-family: var(--mih-body);
}
.shiny-notification-error { border-left-color: var(--mih-rust-deep);
                            background: var(--mih-paper-warm); }
.shiny-notification-warning { border-left-color: var(--mih-gold); }
.shiny-notification-message { border-left-color: var(--mih-teal); }

/* ============ Details / collapsible ============ */
details {
  background: var(--mih-paper);
  border: 1px solid var(--mih-paper-edge);
  border-left: 3px solid var(--mih-ink-faint);
  padding: 8px 14px 10px;
  margin: 10px 0;
}
details summary {
  cursor: pointer;
  font-family: var(--mih-body); font-weight: 500;
  color: var(--mih-ink); padding: 4px 0;
  list-style: none;
}
details summary::before {
  content: "▸ "; color: var(--mih-rust); font-size: 0.85em;
}
details[open] summary::before { content: "▾ "; }

/* ============ Plotly axis touch-up ============ */
.plotly .modebar { opacity: 0.6; }
.plotly .modebar:hover { opacity: 1; }
.js-plotly-plot .plotly .gridlayer path { stroke: var(--mih-paper-edge); }

/* ============ About page (long-form copy) ============ */
.about-prose { max-width: 760px; padding: 24px 8px; }
.about-prose h2:first-of-type { margin-top: 0; }
.about-prose ul, .about-prose ol { color: var(--mih-ink-soft); }

/* ============ Number cells helper ============ */
td.num, .num { font-family: var(--mih-mono); font-feature-settings: "tnum"; }

/* Pull mainPanel slightly inward for breathing room */
.col-sm-8 { padding-left: 28px; padding-right: 12px; }