/* ============================================================
   Darrock Research v3 — Design System
   Split-pane workspace + slide-over stock detail + public perf
   ============================================================ */

/* --- Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,200..800;1,6..72,200..800&family=Jost:ital,wght@0,100..900;1,100..900&display=swap');

@font-face {
  font-family: 'Castellar';
  src: url('/static/fonts/CastellarRegular.ttf') format('truetype');
  font-weight: normal; font-style: normal; font-display: swap;
}
/* --- Tokens --- */
:root {
  --bg:        #ebebeb;
  --surface:   #ffffff;
  --text:      #404040;
  --muted:     #8a8a8a;
  --border:    #d4d4d4;
  --divider:   #eeeeee;
  --positive:  #2e7d40;
  --negative:  #c0392b;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --shadow:    0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --radius:    4px;
  --radius-lg: 8px;

  --font-body:  'Newsreader', Georgia, serif;
  --font-ui:    'Jost', 'Segoe UI', sans-serif;
  --font-title: 'Castellar', 'Playfair Display', Georgia, serif;

  /* Fluid type: min 14px @ 375px, max 16.5px @ 1920px */
  --fs-base:  clamp(0.875rem, 0.82rem + 0.24vw, 1.03rem);
  --fs-sm:    clamp(0.75rem,  0.7rem  + 0.2vw,  0.85rem);
  --fs-xs:    clamp(0.65rem,  0.6rem  + 0.15vw, 0.75rem);
  --fs-lg:    clamp(1.1rem,   1rem    + 0.3vw,  1.35rem);
  --fs-xl:    clamp(1.5rem,   1.3rem  + 0.5vw,  2rem);
  --fs-metric: clamp(1.3rem,  1.1rem  + 0.5vw,  1.7rem);

  /* Panel widths */
  --panel-width: 380px;
  --panel-min: 52px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: var(--fs-base); -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-body); color: var(--text); background: var(--bg); line-height: 1.55; min-height: 100vh; min-height: 100dvh; overflow: hidden; }
a { color: var(--text); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- Typography --- */
h1, h2, h3 { font-family: var(--font-title); font-weight: normal; letter-spacing: 0.04em; }
h1 { font-size: var(--fs-xl); }
h2 { font-size: var(--fs-lg); }
h3 { font-size: var(--fs-base); }

.ui          { font-family: var(--font-ui); }
.label       { font-family: var(--font-ui); font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.text-muted  { color: var(--muted); }
.text-pos    { color: var(--positive); }
.text-neg    { color: var(--negative); }
.text-right  { text-align: right; }
.text-center { text-align: center; }
.mono        { font-variant-numeric: tabular-nums; }

/* ============================================================
   LAYOUT: App Shell (desktop = split pane, mobile = stacked)
   ============================================================ */

.app {
  display: flex;
  height: 100vh;
  height: 100dvh;
}

/* --- Top bar (thin, always visible) --- */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 44px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 1rem;
  font-family: var(--font-ui);
}

.topbar-brand {
  font-family: var(--font-title);
  font-size: clamp(0.9rem, 0.85rem + 0.15vw, 1.05rem);
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--text);
}

.topbar-actions {
  display: flex; gap: 0.25rem; align-items: center;
}

.topbar-actions a, .topbar-actions button {
  font-family: var(--font-ui); font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  padding: 0.35rem 0.75rem; border-radius: var(--radius);
  border: none; background: none; color: var(--text); cursor: pointer;
  text-decoration: none; transition: background 0.12s;
}
.topbar-actions a:hover, .topbar-actions button:hover { background: var(--bg); text-decoration: none; }
.topbar-actions .active { background: var(--bg); font-weight: 500; }

/* --- Panels (below topbar) --- */
.panels {
  display: flex;
  width: 100%;
  margin-top: 44px;
  height: calc(100vh - 44px);
  height: calc(100dvh - 44px);
}

/* --- Left Panel: Filters --- */
.panel-left {
  width: var(--panel-width);
  min-width: var(--panel-min);
  max-width: 520px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  overflow: hidden;
  transition: width 0.25s ease;
}

#filter-form {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 0;
}

.panel-left.collapsed { width: var(--panel-min); }
.panel-left.collapsed #filter-form { display: none; }
.panel-left.collapsed .panel-content { display: none; }
.panel-left.collapsed .panel-collapse-label { display: flex; }
.panel-left.collapsed .panel-toggle span:first-child { display: none; }
.panel-left.collapsed .panel-toggle { justify-content: center; }

.panel-toggle {
  height: 36px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 0.75rem;
  border-bottom: 1px solid var(--divider);
  font-family: var(--font-ui); font-size: var(--fs-xs);
  text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted);
  cursor: pointer; user-select: none;
  flex-shrink: 0;
}

.panel-toggle-icon {
  font-size: 0.7rem; transition: transform 0.2s;
}
.panel-left.collapsed .panel-toggle-icon { transform: rotate(180deg); }

.panel-collapse-label {
  display: none;
  writing-mode: vertical-lr;
  text-orientation: mixed;
  font-family: var(--font-ui); font-size: var(--fs-xs);
  text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted);
  padding: 1rem 0;
  align-items: center; justify-content: center;
  flex: 1; cursor: pointer;
}

.panel-content {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0.75rem;
  scrollbar-gutter: stable;
}

.panel-content::-webkit-scrollbar { width: 8px; }
.panel-content::-webkit-scrollbar-track { background: transparent; }
.panel-content::-webkit-scrollbar-thumb {
  background: var(--divider);
  border-radius: 999px;
}
.panel-content::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* Run button pinned at bottom of left panel */
.panel-footer {
  flex-shrink: 0;
  padding: 0.5rem 0.75rem;
  border-top: 1px solid var(--divider);
  background: var(--surface);
}

.panel-left.collapsed .panel-footer { display: none; }

/* --- Right Panel: Results --- */
.panel-right {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
}

/* ============================================================
   FILTER COMPONENTS
   ============================================================ */

/* Accordion group */
.acc {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
  background: var(--surface);
}

.acc-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.55rem 0.75rem;
  cursor: pointer; user-select: none;
  font-family: var(--font-ui); font-size: var(--fs-sm); font-weight: 500;
  letter-spacing: 0.03em;
}

.acc-head::after {
  content: '\25BE'; font-size: 0.65rem; color: var(--muted);
  transition: transform 0.2s;
}
.acc.closed .acc-head::after { transform: rotate(-90deg); }

.acc-body { padding: 0 0.75rem 0.75rem; }
.acc.closed .acc-body { display: none; }

/* Sub-tabs within an accordion (Rule1 / Rule2) */
.subtabs {
  display: flex; gap: 0; border-bottom: 1px solid var(--divider);
  margin-bottom: 0.5rem;
}

.subtab {
  font-family: var(--font-ui); font-size: var(--fs-xs);
  text-transform: uppercase; letter-spacing: 0.06em;
  padding: 0.4rem 0.75rem;
  border: none; background: none; color: var(--muted);
  cursor: pointer; border-bottom: 2px solid transparent;
  transition: color 0.12s, border-color 0.12s;
}
.subtab.active { color: var(--text); border-bottom-color: var(--text); }

.subtab-panel { display: none; }
.subtab-panel.active { display: block; }

/* Filter rows */
.f-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 0.75rem;
}

.f-grid-3 { grid-template-columns: 1fr 1fr 1fr; }

.f-group { display: flex; flex-direction: column; }

.f-group label {
  font-family: var(--font-ui); font-size: var(--fs-xs);
  text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--muted); margin-bottom: 0.2rem;
}

.f-group input, .f-group select {
  font-family: var(--font-ui); font-size: var(--fs-sm);
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); color: var(--text);
  width: 100%; transition: border-color 0.12s;
}
.f-group input:focus, .f-group select:focus { outline: none; border-color: var(--text); }

/* Omit toggle: checkbox inline with the input */
.f-omit {
  display: flex; align-items: center; gap: 0.35rem;
  font-family: var(--font-ui); font-size: var(--fs-xs); color: var(--muted);
  margin-top: 0.15rem;
}
.f-omit input[type="checkbox"] { width: 0.85rem; height: 0.85rem; accent-color: var(--text); }

/* Per-metric filter row (5yr Rule 1) */
.metric-filter-row {
  display: flex; align-items: center; gap: 0.35rem;
  padding: 0.3rem 0;
  border-bottom: 1px solid var(--divider);
  font-family: var(--font-ui); font-size: var(--fs-xs);
}
.metric-filter-row:last-of-type { border-bottom: none; }

.metric-filter-label {
  flex: 1; min-width: 60px;
  font-weight: 500; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
}

.metric-filter-method {
  width: 80px; flex-shrink: 0;
  font-family: var(--font-ui); font-size: var(--fs-xs);
  padding: 0.25rem 0.3rem;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); color: var(--text);
}

.metric-filter-threshold {
  width: 70px; flex-shrink: 0;
  font-family: var(--font-ui); font-size: var(--fs-xs);
  padding: 0.25rem 0.3rem;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); color: var(--text);
  text-align: right;
}

.metric-filter-posrate {
  width: 50px; flex-shrink: 0;
  font-family: var(--font-ui); font-size: var(--fs-xs);
  padding: 0.25rem 0.3rem;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); color: var(--text);
  text-align: right;
}

.metric-filter-omit {
  width: 30px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.metric-filter-omit input[type="checkbox"] {
  width: 0.8rem; height: 0.8rem; accent-color: var(--text);
}

/* Disabled/omitted row visual */
.metric-filter-row.omitted .metric-filter-label,
.metric-filter-row.omitted .metric-filter-method,
.metric-filter-row.omitted .metric-filter-threshold,
.metric-filter-row.omitted .metric-filter-posrate {
  opacity: 0.35;
  pointer-events: none;
}

/* ============================================================
   RESULTS COMPONENTS
   ============================================================ */

/* Summary strip */
.summary-strip {
  display: flex; 
  flex-wrap: wrap; 
  gap: 0.75rem;
  justify-content: space-between;
  padding: 1rem 3rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
}

.summary-item {
  display: flex; flex-direction: column; min-width: 100px; align-items: center;
}

.summary-item .label { margin-bottom: 0.1rem; }

.summary-item .value {
  font-family: var(--font-ui); font-size: var(--fs-metric);
  font-weight: 600; line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

/* Portfolio strip */
.port-strip {
  display: flex; flex-wrap: wrap; gap: 0.35rem;
  margin-bottom: 1.25rem;
}

/* Year table */
.year-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-ui); font-size: var(--fs-sm);
}

.year-table thead th {
  font-size: var(--fs-xs); text-transform: uppercase;
  letter-spacing: 0.06em; font-weight: 500; color: var(--muted);
  padding: 0.5rem 0.6rem; border-bottom: 2px solid var(--border);
  text-align: left; white-space: nowrap;
  position: sticky; top: 0; background: var(--bg); z-index: 2;
}

.year-table thead th.r { text-align: right; }

.year-table tbody td {
  padding: 0.65rem 0.75rem; border-bottom: 1px solid var(--divider);
  white-space: nowrap; vertical-align: top;
}

.year-table tbody td.r { text-align: right; font-variant-numeric: tabular-nums; }

.year-table tbody tr.year-row { cursor: pointer; transition: background 0.12s; }
.year-table tbody tr.year-row:nth-child(4n+1) { background: rgba(0,0,0,0.018); }
.year-table tbody tr.year-row:hover { background: rgba(0,0,0,0.05); }
.year-table tbody tr.year-row.active { background: rgba(0,0,0,0.06); font-weight: 500; }

/* Expanded year detail (hidden by default, shown below the row) */
.year-detail {
  display: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin: 0.25rem 0 0.75rem;
  max-height: min(680px, calc(100dvh - 180px));
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.year-detail.open { display: block; }

.year-detail::-webkit-scrollbar { width: 8px; }
.year-detail::-webkit-scrollbar-track { background: transparent; }
.year-detail::-webkit-scrollbar-thumb {
  background: var(--divider);
  border-radius: 999px;
}
.year-detail::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* Flow visualization */
.flow {
  display: flex; align-items: center; gap: 0.35rem; flex-wrap: wrap;
  font-family: var(--font-ui); font-size: var(--fs-xs);
  padding: 0.5rem 0;
}

.flow-step {
  display: flex; flex-direction: column; align-items: center;
  padding: 0.35rem 0.6rem; border: 1px solid var(--border);
  border-radius: var(--radius); background: var(--bg); min-width: 50px;
}
.flow-step .label { font-size: 0.55rem; }
.flow-step .value { font-size: var(--fs-base); font-weight: 600; }
.flow-arrow { color: var(--muted); font-size: 0.6rem; }

/* Flow pills are buttons; reset default button styling to match the original divs */
button.flow-pill {
  font: inherit; color: inherit; cursor: pointer;
}
button.flow-pill:hover { border-color: var(--text); }

/* Flow-pill modal */
.flow-modal {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); color: var(--text);
  padding: 0; min-width: min(480px, 90vw); max-width: 90vw;
  font-family: var(--font-ui); font-size: var(--fs-sm);
}
.flow-modal::backdrop { background: rgba(0,0,0,0.4); }
.flow-modal-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.5rem 0.75rem; border-bottom: 1px solid var(--divider);
}
.flow-modal-close {
  background: none; border: none; font-size: 1.2rem; cursor: pointer;
  color: var(--muted); line-height: 1;
}
.flow-modal-close:hover { color: var(--text); }
.flow-modal-body {
  padding: 0.75rem; max-height: 60vh; overflow-y: auto;
  display: flex; flex-wrap: wrap; gap: 0.25rem;
}

/* ============================================================
   SLIDE-OVER PANEL (Stock Detail)
   ============================================================ */

.slide-over {
  position: fixed; top: 44px; right: 0; bottom: 0;
  width: min(680px, 90vw);
  background: var(--surface);
  border-left: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  z-index: 200;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
  padding: 1.5rem;
}

.slide-over.open { transform: translateX(0); }

.slide-over-backdrop {
  position: fixed; inset: 0; z-index: 199;
  background: rgba(0,0,0,0.15);
  display: none;
}
.slide-over-backdrop.open { display: block; }

.slide-close {
  position: absolute; top: 0.75rem; right: 0.75rem;
  font-family: var(--font-ui); font-size: var(--fs-sm);
  border: none; background: none; color: var(--muted);
  cursor: pointer; padding: 0.25rem 0.5rem;
}
.slide-close:hover { color: var(--text); }

/* ============================================================
   SHARED CARDS / BADGES / BUTTONS
   ============================================================ */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow-sm);
}

.metric-card { padding: 0.75rem 1rem; }
.metric-card .label { margin-bottom: 0.1rem; }
.metric-card .value {
  font-family: var(--font-ui); font-size: var(--fs-metric);
  font-weight: 600; line-height: 1.2;
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }

.badge {
  font-family: var(--font-ui); font-size: var(--fs-xs); font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.04em;
  padding: 0.15rem 0.45rem; border-radius: 2px;
  border: 1px solid var(--border); display: inline-block;
}
.badge-ticker { background: var(--text); color: var(--surface); border-color: var(--text); font-weight: 600; }
.badge-pos { color: var(--positive); border-color: var(--positive); }
.badge-neg { color: var(--negative); border-color: var(--negative); }
.badge-sector { color: var(--muted); }

.tag {
  font-family: var(--font-ui); font-size: var(--fs-xs); font-weight: 500;
  padding: 0.2rem 0.5rem; border: 1px solid var(--border); border-radius: 2px;
  background: var(--surface); color: var(--text); cursor: pointer;
  text-decoration: none; transition: border-color 0.12s;
}
.tag:hover { border-color: var(--text); text-decoration: none; }

/* Buttons */
.btn {
  font-family: var(--font-ui); font-size: var(--fs-sm);
  letter-spacing: 0.1em;
  padding: 0.5rem 1.25rem; border: 1px solid var(--text);
  border-radius: var(--radius); background: transparent;
  color: var(--text); cursor: pointer;
  transition: background 0.12s, color 0.12s;
  display: inline-flex; align-items: center; gap: 0.3rem;
  text-decoration: none;
}
.btn:hover { background: var(--text); color: var(--surface); text-decoration: none; }

.btn-primary { background: var(--text); color: var(--surface); }
.btn-primary:hover { background: transparent; color: var(--text); }

.btn-sm { font-size: var(--fs-xs); padding: 0.3rem 0.7rem; }

.btn-ghost { border: none; }
.btn-ghost:hover { background: rgba(0,0,0,0.05); color: var(--text); }

.btn-danger { border-color: var(--negative); color: var(--negative); }
.btn-danger:hover { background: var(--negative); color: var(--surface); }

.btn-full { width: 100%; justify-content: center; }

/* Tiny inline toggles for the Skip-all / Include-all buttons in the rule
   filter headers. Should look like dim links, not full buttons. */
.skip-toggle-btn {
  border: 1px solid var(--divider);
  background: transparent;
  color: var(--muted);
  font-size: 0.5rem;
  padding: 1px 4px;
  border-radius: 3px;
  cursor: pointer;
  line-height: 1;
}
.skip-toggle-btn:hover {
  background: var(--text);
  color: var(--surface);
  border-color: var(--text);
}

/* ============================================================
   TABLES (generic)
   ============================================================ */

.tbl-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.tbl-scroll { max-height: 400px; overflow-y: auto; }

table.tbl {
  width: 100%; border-collapse: collapse;
  font-family: var(--font-ui); font-size: var(--fs-sm);
}
table.tbl thead th {
  font-size: var(--fs-xs); text-transform: uppercase;
  letter-spacing: 0.06em; font-weight: 500; color: var(--muted);
  padding: 0.45rem 0.6rem; border-bottom: 2px solid var(--border);
  text-align: left; white-space: nowrap;
  position: sticky; top: 0; background: var(--surface);
}
table.tbl thead th.r { text-align: right; }
table.tbl tbody td { padding: 0.45rem 0.6rem; border-bottom: 1px solid var(--divider); white-space: nowrap; }
table.tbl tbody td.r { text-align: right; font-variant-numeric: tabular-nums; }
table.tbl tbody tr:hover { background: rgba(0,0,0,0.02); }

/* Sortable headers */
table.tbl thead th.sortable { cursor: pointer; user-select: none; }
table.tbl thead th.sortable:hover { color: var(--text); }
table.tbl thead th.sortable::after {
  content: " \25B4\25BE";      /* ▴▾ */
  opacity: 0.45; font-size: 0.65rem; margin-left: 3px;
  letter-spacing: -2px;
}
table.tbl thead th.sort-asc::after {
  content: " \25B2"; opacity: 1; color: var(--text);
  letter-spacing: normal;
}
table.tbl thead th.sort-desc::after {
  content: " \25BC"; opacity: 1; color: var(--text);
  letter-spacing: normal;
}

/* Highlight rows that made it into the final portfolio */
table.tbl tbody tr.candidate-selected {
  background: rgba(46, 125, 64, 0.08);
  font-weight: 500;
}
table.tbl tbody tr.candidate-selected:hover {
  background: rgba(46, 125, 64, 0.14);
}

/* ============================================================
   LOGIN PAGE
   ============================================================ */

.login-wrap {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; min-height: 100dvh;
}
body.login-page { overflow: auto; }

.login-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 3rem 2.5rem;
  width: min(400px, calc(100% - 2rem));
  box-shadow: var(--shadow-lg); text-align: center;
}
.login-box h1 { font-size: var(--fs-xl); margin-bottom: 0.4rem; }
.login-box .sub { font-family: var(--font-ui); font-size: var(--fs-sm); color: var(--muted); letter-spacing: 0.15em; text-transform: lowercase; margin-bottom: 2rem; }
.login-box .f-group { text-align: left; margin-bottom: 0.75rem; }
.login-box .btn { width: 100%; justify-content: center; margin-top: 0.5rem; }

/* ============================================================
   PUBLIC / SHARED PAGE
   ============================================================ */

body.public-page { overflow: auto; }

.public-wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.hero { text-align: center; padding: 2.5rem 1rem 1.5rem; }
.hero h1 { font-size: var(--fs-xl); margin-bottom: 0.3rem; }
.hero .sub { font-family: var(--font-ui); font-size: var(--fs-sm); color: var(--muted); letter-spacing: 0.12em; text-transform: lowercase; }

.section {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); margin-bottom: 1.25rem;
  box-shadow: var(--shadow-sm);
}
.section-head {
  padding: 0.65rem 1rem;
  font-family: var(--font-ui); font-size: var(--fs-sm); font-weight: 500;
  letter-spacing: 0.04em; border-bottom: 1px solid var(--divider);
}
.section-body { padding: 1rem; }

.divider { border: none; border-top: 1px solid var(--border); margin: 1.5rem 0; }

/* ============================================================
   UTILITIES
   ============================================================ */

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; } .gap-2 { gap: 0.75rem; } .gap-3 { gap: 1rem; }
.mt-1 { margin-top: 0.5rem; } .mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; } .mb-2 { margin-bottom: 1rem; }
.p-1 { padding: 0.5rem; } .p-2 { padding: 1rem; }
.hidden { display: none !important; }

/* Notification toast */
.toast {
  position: fixed; top: 0.75rem; right: 0.75rem; z-index: 9999;
  font-family: var(--font-ui); font-size: var(--fs-sm);
  padding: 0.55rem 1rem; border-radius: var(--radius);
  color: white; box-shadow: var(--shadow-lg);
  animation: toast-in 0.2s ease-out;
}
.toast-ok  { background: var(--positive); }
.toast-err { background: var(--negative); }

@keyframes toast-in {
  from { transform: translateY(-1rem); opacity: 0; }
  to   { transform: translateY(0);     opacity: 1; }
}

/* Spinner */
.spinner {
  display: inline-block; width: 0.85rem; height: 0.85rem;
  border: 2px solid transparent; border-top-color: currentColor;
  border-radius: 50%; animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
   MOBILE RESPONSIVE
   ============================================================ */

/* Floating filter button — hidden on desktop, visible on mobile */
.fab-filters {
  display: none;
  position: fixed; bottom: 1rem; right: 1rem; z-index: 140;
  width: 48px; height: 48px;
  border-radius: 50%; border: 1px solid var(--border);
  background: var(--surface); color: var(--text);
  box-shadow: var(--shadow-lg);
  font-family: var(--font-ui); font-size: var(--fs-xs);
  text-transform: uppercase; letter-spacing: 0.06em;
  cursor: pointer; align-items: center; justify-content: center;
}

/* Mobile backdrop for filter sheet */
.sheet-backdrop {
  display: none;
  position: fixed; inset: 0; z-index: 149;
  background: rgba(0,0,0,0.2);
}
.sheet-backdrop.open { display: block; }

/* Mobile: bottom sheet for filters */
@media (max-width: 768px) {
  body { overflow: auto; }

  .panels { flex-direction: column; height: auto; min-height: calc(100dvh - 44px); }

  .fab-filters { display: flex; }

  .panel-left {
    position: fixed; bottom: 0; left: 0; right: 0;
    width: 100% !important; max-width: 100%;
    height: 75vh; max-height: 75vh;
    border-right: none; border-top: 1px solid var(--border);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
    z-index: 150;
    transform: translateY(100%);
    transition: transform 0.3s ease;
  }

  .panel-left.mobile-open { transform: translateY(0); }

  /* Override desktop collapsed behavior on mobile */
  .panel-left.collapsed {
    width: 100% !important;
    transform: translateY(100%);
  }
  .panel-left.collapsed #filter-form { display: flex; }
  .panel-left.collapsed .panel-content { display: block; }
  .panel-left.collapsed .panel-collapse-label { display: none; }
  .panel-left.collapsed .panel-footer { display: block; }
  .panel-left.collapsed .panel-toggle span:first-child { display: inline; }
  .panel-left.collapsed .panel-toggle { justify-content: space-between; }

  .panel-toggle {
    height: 48px;
    justify-content: center; gap: 0.5rem;
    position: relative;
  }
  .panel-toggle::before {
    content: ''; display: block; width: 32px; height: 3px;
    background: var(--border); border-radius: 2px;
    position: absolute; top: 8px; left: 50%; transform: translateX(-50%);
  }

  .panel-right { padding: 1rem; padding-bottom: 70px; }

  .slide-over { width: 100vw; top: 44px; }

  .summary-strip { gap: 0.5rem; }
  .summary-item { min-width: 80px; }

  .f-grid { grid-template-columns: 1fr 1fr; }
  .f-grid-3 { grid-template-columns: 1fr 1fr; }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }

  /* Fix 4: smaller metric cards on mobile for public page */
  .public-wrap .metric-card { padding: 0.5rem 0.65rem; }
  .public-wrap .metric-card .value { font-size: var(--fs-base); }
  .public-wrap .grid-4 { grid-template-columns: 1fr 1fr; gap: 0.5rem; }
  .public-wrap .hero { padding: 1.5rem 0.5rem 1rem; }
  .public-wrap .hero h1 { font-size: var(--fs-lg); }
}

@media (max-width: 480px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .public-wrap .grid-4 { grid-template-columns: 1fr 1fr; } /* keep 2-col for metrics even on small */
  .f-grid { grid-template-columns: 1fr; }
  .summary-strip { flex-direction: row; }
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .topbar, .panel-left, .btn, .slide-over-backdrop { display: none !important; }
  .panels { display: block; }
  .panel-right { padding: 0; overflow: visible; }
  body { overflow: auto; background: white; }
  .year-detail { display: block !important; }
}