/* =====================================================================
   VSC LBO Model — Brand Stylesheet
   Calibrated to Vintage Stone Capital Brand Book v2.0
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=Cormorant+SC:wght@400;500;600&display=swap');

:root {
  /* Primary palette */
  --gold: #A8884A;
  --gold-lt: #C9AA72;
  --gold-dk: #7A6234;
  --gold-15: rgba(168, 136, 74, 0.15);
  --gold-18: rgba(168, 136, 74, 0.18);
  --gold-30: rgba(168, 136, 74, 0.30);
  --gold-08: rgba(168, 136, 74, 0.08);

  --navy: #1A2C3D;
  --navy-lt: #2A3D52;
  --navy-faint: rgba(26, 44, 61, 0.05);

  --ink-mid: #4A443C;
  --ink-faint: #8A8278;
  --ink-soft: #6A645C;

  --cream: #F5F0E5;
  --cream-2: #EDE8DF;
  --cream-3: #E5DFD3;

  /* Sentiment */
  --positive: #5C7A4A;
  --neutral: #8A7040;
  --negative: #8A5040;
  --positive-bg: rgba(92, 122, 74, 0.08);
  --negative-bg: rgba(138, 80, 64, 0.08);
  --warning-bg: rgba(138, 112, 64, 0.10);

  /* Structural */
  --rule: rgba(168, 136, 74, 0.30);
  --rule-light: rgba(168, 136, 74, 0.12);

  --shadow-faint: 0 1px 0 rgba(26, 44, 61, 0.04);

  /* Typography */
  --font-body: 'EB Garamond', Georgia, 'Times New Roman', serif;
  --font-display: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-sc: 'Cormorant SC', Georgia, serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink-mid);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==== Typography ==== */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--navy);
  font-weight: 500;
  margin: 0;
  letter-spacing: -0.005em;
}
h1 { font-size: 32px; line-height: 1.1; }
h2 { font-size: 24px; line-height: 1.15; }
h3 { font-size: 18px; line-height: 1.2; font-weight: 500; }
h4 { font-size: 14px; line-height: 1.25; font-weight: 600; }

.sc-label {
  font-family: var(--font-sc);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--gold);
  text-transform: uppercase;
  font-weight: 500;
}
.sc-label.muted { color: var(--ink-faint); }

.italic-source { font-family: var(--font-body); font-style: italic; font-size: 11px; color: var(--ink-faint); }

/* ==== App layout ==== */
.app-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

/* ==== Sidebar ==== */
.sidebar {
  background: var(--navy);
  color: var(--cream);
  padding: 24px 0;
  border-right: 1px solid var(--gold-15);
  position: sticky; top: 0;
  height: 100vh;
  overflow-y: auto;
}
.sidebar-brand {
  padding: 0 22px 24px;
  border-bottom: 1px solid rgba(168, 136, 74, 0.18);
  margin-bottom: 18px;
}
.sidebar-brand .brand-mark {
  font-family: var(--font-sc);
  font-size: 11px;
  letter-spacing: 0.25em;
  color: var(--gold);
  margin-bottom: 6px;
}
.sidebar-brand .brand-name {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.05;
  color: var(--cream);
  font-weight: 400;
}
.sidebar-brand .brand-name em {
  font-style: italic;
  color: var(--gold-lt);
}
.sidebar-brand .brand-sub {
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--ink-faint);
  margin-top: 4px;
  letter-spacing: 0.05em;
}

.nav-section { padding: 12px 0 8px; }
.nav-section-title {
  font-family: var(--font-sc);
  font-size: 9px;
  letter-spacing: 0.25em;
  color: rgba(201, 170, 114, 0.55);
  padding: 0 22px 6px;
}
.nav-item {
  display: block;
  padding: 7px 22px;
  color: rgba(245, 240, 229, 0.78);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 14px;
  border-left: 2px solid transparent;
  cursor: pointer;
  user-select: none;
  transition: all 0.12s ease;
}
.nav-item:hover {
  color: var(--cream);
  background: rgba(168, 136, 74, 0.06);
}
.nav-item.active {
  color: var(--gold-lt);
  background: rgba(168, 136, 74, 0.10);
  border-left-color: var(--gold);
}

.nav-divider {
  height: 1px;
  background: rgba(168, 136, 74, 0.10);
  margin: 8px 22px;
}

/* ==== Main area ==== */
.main {
  background: var(--cream);
  padding: 32px 40px 60px;
  min-height: 100vh;
}
.main-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule);
}
.main-header .breadcrumb {
  font-family: var(--font-sc);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 6px;
}
.main-header .deal-title {
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--navy);
  font-weight: 500;
}
.main-header .deal-title em { color: var(--gold-dk); font-style: italic; }
.main-header .header-actions { display: flex; gap: 8px; align-items: center; }

/* ==== Buttons ==== */
.btn {
  font-family: var(--font-sc);
  font-size: 10px;
  letter-spacing: 0.2em;
  padding: 8px 16px;
  border: 1px solid var(--gold);
  background: transparent;
  color: var(--gold-dk);
  cursor: pointer;
  text-transform: uppercase;
  font-weight: 500;
  transition: all 0.12s ease;
}
.btn:hover { background: var(--gold-08); color: var(--gold-dk); }
.btn.primary { background: var(--gold); color: var(--cream); border-color: var(--gold); }
.btn.primary:hover { background: var(--gold-dk); border-color: var(--gold-dk); }
.btn.navy { background: var(--navy); color: var(--cream); border-color: var(--navy); }
.btn.navy:hover { background: var(--navy-lt); }
.btn.ghost { border-color: var(--rule); color: var(--ink-soft); }
.btn.danger { color: var(--negative); border-color: var(--negative); }
.btn.danger:hover { background: var(--negative-bg); }
.btn.sm { padding: 5px 11px; font-size: 9px; }

/* ==== Cards ==== */
.card {
  background: var(--cream-2);
  border: 1px solid var(--gold-15);
  padding: 20px 24px;
  margin-bottom: 18px;
}
.card.tight { padding: 14px 18px; margin-bottom: 12px; }
.card-title {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--navy);
  font-weight: 500;
  margin-bottom: 4px;
}
.card-subtitle {
  font-family: var(--font-sc);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--gold);
  margin-bottom: 14px;
}
.card-section { margin-bottom: 18px; }
.card-section:last-child { margin-bottom: 0; }
.card-divider { height: 1px; background: var(--rule-light); margin: 14px 0; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 1100px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
}

/* ==== KPI tile ==== */
.kpi-tile {
  background: var(--cream-2);
  border: 1px solid var(--gold-15);
  padding: 16px 18px;
}
.kpi-tile .kpi-label {
  font-family: var(--font-sc);
  font-size: 9px;
  letter-spacing: 0.22em;
  color: var(--gold);
  margin-bottom: 8px;
}
.kpi-tile .kpi-value {
  font-family: var(--font-display);
  font-size: 30px;
  color: var(--navy);
  font-weight: 500;
  line-height: 1;
}
.kpi-tile .kpi-sub {
  font-size: 11px;
  color: var(--ink-faint);
  margin-top: 6px;
  font-style: italic;
}
.kpi-tile.dark { background: var(--navy); border-color: var(--gold-30); }
.kpi-tile.dark .kpi-label { color: var(--gold-lt); }
.kpi-tile.dark .kpi-value { color: var(--cream); }
.kpi-tile.dark .kpi-sub { color: rgba(245, 240, 229, 0.70); }

/* ==== Form fields ==== */
.field {
  display: block;
  margin-bottom: 14px;
}
.field-label {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--ink-soft);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.field-label .help-icon {
  display: inline-block;
  width: 13px; height: 13px;
  border: 1px solid var(--gold-30);
  border-radius: 50%;
  font-size: 9px;
  text-align: center;
  line-height: 11px;
  color: var(--ink-faint);
  cursor: help;
  font-family: var(--font-body);
  font-style: italic;
}
.field-label .help-icon:hover { background: var(--gold-08); color: var(--gold-dk); border-color: var(--gold); }
.field-input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--gold-15);
  background: var(--cream);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--navy);
  transition: border-color 0.12s, background 0.12s;
}
.field-input:focus {
  outline: none;
  border-color: var(--gold);
  background: var(--cream);
  box-shadow: inset 0 0 0 1px var(--gold-08);
}
.field-input.has-prefix { padding-left: 28px; }
.field-input.has-suffix { padding-right: 32px; }
.field-input-wrap { position: relative; }
.field-input-wrap .prefix, .field-input-wrap .suffix {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  color: var(--ink-faint);
  font-size: 13px;
  pointer-events: none;
}
.field-input-wrap .prefix { left: 10px; }
.field-input-wrap .suffix { right: 10px; }
.field-help {
  font-size: 11px;
  color: var(--ink-faint);
  margin-top: 4px;
  font-style: italic;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field-row-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.field-row-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }

select.field-input { cursor: pointer; appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink-faint) 50%), linear-gradient(135deg, var(--ink-faint) 50%, transparent 50%); background-position: calc(100% - 16px) 50%, calc(100% - 12px) 50%; background-size: 4px 4px, 4px 4px; background-repeat: no-repeat; padding-right: 28px; }

/* ==== Tables ==== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-body);
  font-size: 13px;
}
.data-table th {
  font-family: var(--font-sc);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--gold-dk);
  text-align: right;
  padding: 9px 10px;
  border-bottom: 1px solid var(--rule);
  font-weight: 500;
  background: transparent;
}
.data-table th:first-child {
  text-align: left;
  font-family: var(--font-sc);
  letter-spacing: 0.15em;
}
.data-table td {
  padding: 8px 10px;
  text-align: right;
  border-bottom: 1px solid var(--rule-light);
  color: var(--ink-mid);
  font-variant-numeric: tabular-nums;
}
.data-table td:first-child {
  text-align: left;
  font-family: var(--font-body);
  color: var(--navy);
}
.data-table tr.section-row td {
  font-family: var(--font-sc);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--gold);
  padding-top: 16px;
  border-bottom-color: var(--gold-30);
  text-transform: uppercase;
}
.data-table tr.total-row td {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  color: var(--navy);
  border-top: 1px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  padding-top: 10px;
  padding-bottom: 10px;
}
.data-table tr.subtotal-row td {
  font-weight: 600;
  border-top: 1px solid var(--gold-30);
  color: var(--navy);
}
.data-table tr.dim-row td { color: var(--ink-faint); font-style: italic; }
.data-table tr.editable td.editable-cell { background: var(--cream); padding: 0; }
.data-table input.cell-input {
  width: 100%;
  padding: 8px 10px;
  border: none;
  background: transparent;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--navy);
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.data-table input.cell-input:focus { outline: 1px solid var(--gold); background: var(--cream-2); }

.balance-check {
  display: inline-block;
  font-family: var(--font-sc);
  font-size: 10px;
  letter-spacing: 0.18em;
  padding: 4px 10px;
  border: 1px solid;
  margin-top: 8px;
}
.balance-check.ok { color: var(--positive); border-color: var(--positive); background: var(--positive-bg); }
.balance-check.bad { color: var(--negative); border-color: var(--negative); background: var(--negative-bg); }

/* ==== Charts ==== */
.chart-card {
  background: var(--cream-2);
  border: 1px solid var(--gold-15);
  padding: 18px 22px;
}
.chart-card .chart-title {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--navy);
  font-weight: 500;
  margin-bottom: 2px;
}
.chart-card .chart-sub {
  font-family: var(--font-sc);
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 12px;
}
.chart-card .chart-source {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 10.5px;
  color: var(--ink-faint);
  margin-top: 8px;
}
.chart-canvas-wrap {
  position: relative;
  height: 280px;
}
.chart-canvas-wrap.tall { height: 360px; }
.chart-canvas-wrap.short { height: 200px; }

/* ==== Sensitivity grid ==== */
.sensitivity-grid {
  display: grid;
  border: 1px solid var(--gold-15);
  background: var(--cream-2);
  font-family: var(--font-body);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}
.sensitivity-grid .sens-cell {
  padding: 9px 8px;
  border-right: 1px solid var(--rule-light);
  border-bottom: 1px solid var(--rule-light);
  text-align: center;
  color: var(--navy);
}
.sensitivity-grid .sens-cell.header {
  background: var(--cream-3);
  font-family: var(--font-sc);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--gold-dk);
  font-weight: 500;
}
.sensitivity-grid .sens-cell.row-header {
  background: var(--cream-3);
  font-family: var(--font-sc);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--gold-dk);
  font-weight: 500;
}
.sensitivity-grid .sens-cell.base {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
  font-weight: 600;
}

/* ==== Tabs ==== */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 22px;
}
.tab {
  padding: 10px 20px;
  font-family: var(--font-sc);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 0.12s;
  text-transform: uppercase;
}
.tab:hover { color: var(--ink-mid); }
.tab.active { color: var(--gold-dk); border-bottom-color: var(--gold); }

/* ==== Status pills ==== */
.pill {
  display: inline-block;
  font-family: var(--font-sc);
  font-size: 9px;
  letter-spacing: 0.18em;
  padding: 3px 9px;
  border: 1px solid;
  text-transform: uppercase;
}
.pill.ok { color: var(--positive); border-color: var(--positive); background: var(--positive-bg); }
.pill.warn { color: var(--neutral); border-color: var(--neutral); background: var(--warning-bg); }
.pill.bad { color: var(--negative); border-color: var(--negative); background: var(--negative-bg); }
.pill.gold { color: var(--gold-dk); border-color: var(--gold); background: var(--gold-08); }

/* ==== Deal list ==== */
.deal-card {
  background: var(--cream-2);
  border: 1px solid var(--gold-15);
  padding: 22px 26px;
  margin-bottom: 14px;
  cursor: pointer;
  transition: border-color 0.12s, background 0.12s;
}
.deal-card:hover { border-color: var(--gold); background: var(--cream-3); }
.deal-card .deal-name {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--navy);
  font-weight: 500;
}
.deal-card .deal-meta {
  font-family: var(--font-sc);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--gold);
  margin-top: 4px;
}
.deal-card-stats { display: flex; gap: 32px; margin-top: 14px; }
.deal-card-stat .stat-label {
  font-family: var(--font-sc);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
  margin-bottom: 4px;
}
.deal-card-stat .stat-value {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--navy);
  font-weight: 500;
}

/* ==== Modal ==== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26, 44, 61, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.modal {
  background: var(--cream);
  border: 1px solid var(--gold);
  padding: 32px;
  width: 480px;
  max-width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
}
.modal h2 { margin-bottom: 4px; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 22px; }

/* ==== Empty state ==== */
.empty {
  background: var(--cream-2);
  border: 1px dashed var(--gold-30);
  padding: 60px 40px;
  text-align: center;
  color: var(--ink-faint);
}
.empty h3 { color: var(--navy); margin-bottom: 8px; }
.empty p { color: var(--ink-soft); margin: 0 0 20px; }

/* ==== Tooltip ==== */
.tip {
  position: absolute;
  background: var(--navy);
  color: var(--cream);
  padding: 8px 12px;
  font-family: var(--font-body);
  font-size: 12px;
  border: 1px solid var(--gold);
  max-width: 280px;
  z-index: 200;
  pointer-events: none;
  line-height: 1.4;
  box-shadow: 0 4px 12px rgba(26, 44, 61, 0.20);
}

/* ==== Section headers ==== */
.section-header {
  margin-top: 18px;
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule-light);
}
.section-header .sub {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 13px;
  color: var(--ink-faint);
  margin-top: 4px;
}

/* ==== Year input array ==== */
.year-array {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}
.year-array .year-cell {
  display: flex;
  flex-direction: column;
}
.year-array .year-label {
  font-family: var(--font-sc);
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 3px;
  text-align: center;
}

/* ==== Add-on row ==== */
.addon-row {
  display: grid;
  grid-template-columns: 80px 1fr 100px 100px 100px 100px 100px 80px;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule-light);
  align-items: center;
}
.addon-row .addon-input { padding: 6px 8px; font-size: 13px; }

/* ==== Toast ==== */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--navy);
  color: var(--cream);
  padding: 12px 18px;
  border: 1px solid var(--gold);
  font-family: var(--font-body);
  font-size: 13px;
  z-index: 300;
  box-shadow: 0 6px 14px rgba(26, 44, 61, 0.25);
}

/* ==== Footer ==== */
.app-footer {
  padding: 16px 22px;
  border-top: 1px solid rgba(168, 136, 74, 0.18);
  margin-top: auto;
  font-family: var(--font-body);
  font-size: 10px;
  font-style: italic;
  color: var(--ink-faint);
  text-align: center;
}

/* ==== Print / Export ==== */
@media print {
  .sidebar, .main-header .header-actions, .btn { display: none !important; }
  .main { padding: 20px; }
  .card, .chart-card { break-inside: avoid; page-break-inside: avoid; }
}