/* ==========================================================================
   x.ERP 2026 — Phase 2A Commercial & Financial Execution Suite
   Modules: x.Billing (#08), x.Pay (#09), x.Projects (#25), x.CRM (#30)
   Claude Design v3.0 Light-First Contract:
   - Surface: #FFFFFF, Page: #F2F6FA, Elevated: #E6EDF4 / #F7FAFC
   - Text: #00203F (Primary — text/border only in light mode), #3D566E (Secondary)
   - Accents: #FC6735 (Focus/Active), #E3541F (CTA), #FFF5F0 (Active Tint)
   - Typography: Archivo (UI), IBM Plex Mono tabular-nums (Amounts, JIB, IBAN)
   - Zero emojis, crisp SVG icons, min font size 12px
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. MODAL OVERLAY & PHASE 2A WORKSPACE SHELL
   -------------------------------------------------------------------------- */
.f2a-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 32, 63, 0.42);
  backdrop-filter: blur(3px);
  z-index: 3200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.f2a-modal-dialog {
  width: min(1360px, 96vw);
  max-height: 92vh;
  background: var(--surf, #FFFFFF);
  color: var(--main, #00203F);
  border: 1.5px solid var(--bdr, #CFDCE8);
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0, 32, 63, 0.22);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.f2a-hub-shell {
  background: var(--surf, #FFFFFF);
  color: var(--main, #00203F);
  border: 1px solid var(--bdr, #CFDCE8);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
}

.f2a-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  background: var(--elev, #F2F6FA);
  border-bottom: 1px solid var(--bdr, #CFDCE8);
  flex-wrap: wrap;
}

.f2a-header-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.f2a-module-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-family: var(--font-mono, "IBM Plex Mono", monospace);
  font-size: 12px;
  font-weight: 700;
  color: #B3400F;
  background: #FFF5F0;
  border: 1px solid rgba(252, 103, 53, 0.42);
  border-radius: 6px;
}

.f2a-header-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--main, #00203F);
  margin: 0;
}

.f2a-header-subtitle {
  font-family: var(--font-mono, "IBM Plex Mono", monospace);
  font-size: 12px;
  color: var(--muted, #3D566E);
}

/* --------------------------------------------------------------------------
   2. SUB-NAVIGATION TABS (x.Billing, x.Pay, x.Projects, x.CRM)
   -------------------------------------------------------------------------- */
.f2a-nav-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--surf, #FFFFFF);
  border-bottom: 1px solid var(--bdr, #CFDCE8);
  flex-wrap: wrap;
}

.f2a-nav-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  font-family: var(--font-sans, "Archivo", sans-serif);
  font-size: 13px;
  font-weight: 600;
  color: var(--muted, #3D566E);
  background: var(--elev, #F2F6FA);
  border: 1px solid var(--bdr, #CFDCE8);
  border-radius: 7px;
  cursor: pointer;
  transition: all 0.14s ease;
}

.f2a-nav-tab:hover {
  color: var(--main, #00203F);
  border-color: var(--acc, #FC6735);
}

.f2a-nav-tab.is-active {
  color: var(--main, #00203F);
  background: #FFF5F0;
  border-color: var(--acc, #FC6735);
  box-shadow: inset 0 -2px 0 var(--acc, #FC6735);
}

.f2a-nav-tab svg {
  width: 15px;
  height: 15px;
  stroke: currentColor;
  flex-shrink: 0;
}

.f2a-nav-tab.is-active svg {
  stroke: var(--acc, #FC6735);
}

.f2a-body-scroll {
  padding: 18px 20px;
  overflow-y: auto;
  flex: 1;
}

/* --------------------------------------------------------------------------
   3. KPI STRIP & DECIMAL(0.01) LOCK PILLS
   -------------------------------------------------------------------------- */
.f2a-kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.f2a-kpi-card {
  padding: 12px 14px;
  background: var(--elev, #F2F6FA);
  border: 1px solid var(--bdr, #CFDCE8);
  border-radius: 8px;
}

.f2a-kpi-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted, #3D566E);
  margin-bottom: 4px;
}

.f2a-kpi-value {
  font-family: var(--font-mono, "IBM Plex Mono", monospace);
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  font-weight: 700;
  color: var(--main, #00203F);
}

.f2a-kpi-value.is-accent {
  color: #E3541F;
}

.f2a-kpi-value.is-ok {
  color: #16A34A;
}

/* --------------------------------------------------------------------------
   4. MULTI-LINE INVOICE CREATOR & LIVE MATH LOCK
   -------------------------------------------------------------------------- */
.f2a-split-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 16px;
  align-items: start;
}

@media (max-width: 1080px) {
  .f2a-split-grid {
    grid-template-columns: 1fr;
  }
}

.f2a-panel {
  background: var(--surf, #FFFFFF);
  border: 1px solid var(--bdr, #CFDCE8);
  border-radius: 8px;
  padding: 14px 16px;
}

.f2a-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--bdr, #CFDCE8);
}

.f2a-panel-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--main, #00203F);
  margin: 0;
}

.f2a-form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin-bottom: 10px;
}

.f2a-field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted, #3D566E);
  margin-bottom: 4px;
}

.f2a-input,
.f2a-select {
  width: 100%;
  padding: 7px 10px;
  font-family: var(--font-sans, "Archivo", sans-serif);
  font-size: 13px;
  color: var(--main, #00203F);
  background: var(--surf, #FFFFFF);
  border: 1px solid var(--bdr, #CFDCE8);
  border-radius: 6px;
  box-sizing: border-box;
}

.f2a-input.is-mono,
.f2a-select.is-mono {
  font-family: var(--font-mono, "IBM Plex Mono", monospace);
  font-variant-numeric: tabular-nums;
}

.f2a-input:focus,
.f2a-select:focus {
  outline: none;
  border-color: var(--acc, #FC6735);
  box-shadow: 0 0 0 2px rgba(252, 103, 53, 0.16);
}

.f2a-math-lock-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  margin: 12px 0;
  border-radius: 7px;
  font-family: var(--font-mono, "IBM Plex Mono", monospace);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  font-weight: 600;
}

.f2a-math-lock-banner.is-valid {
  background: #ECFDF5;
  color: #16A34A;
  border: 1px solid rgba(22, 163, 74, 0.35);
}

.f2a-math-lock-banner.is-invalid {
  background: #FEF2F2;
  color: #DC2626;
  border: 1px solid rgba(220, 38, 38, 0.35);
}

/* --------------------------------------------------------------------------
   5. TABLES, BUTTONS & KANBAN COLUMNS
   -------------------------------------------------------------------------- */
.f2a-table-wrap {
  width: 100%;
  overflow-x: auto;
}

.f2a-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}

.f2a-table th {
  text-align: left;
  padding: 8px 10px;
  font-size: 12px;
  font-weight: 700;
  color: var(--main, #00203F);
  background: var(--elev, #F2F6FA);
  border-bottom: 1.5px solid var(--bdr, #CFDCE8);
  white-space: nowrap;
}

.f2a-table td {
  padding: 8px 10px;
  color: var(--main, #00203F);
  border-bottom: 1px solid var(--bdr, #CFDCE8);
  vertical-align: middle;
}

.f2a-table td.is-num,
.f2a-table th.is-num {
  text-align: right;
  font-family: var(--font-mono, "IBM Plex Mono", monospace);
  font-variant-numeric: tabular-nums;
}

.f2a-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  font-family: var(--font-sans, "Archivo", sans-serif);
  font-size: 13px;
  font-weight: 700;
  color: #FFFFFF;
  background: #E3541F;
  border: 1px solid #C84312;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.14s ease;
}

.f2a-btn-primary:hover {
  background: #FC6735;
}

.f2a-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  font-family: var(--font-sans, "Archivo", sans-serif);
  font-size: 12px;
  font-weight: 600;
  color: var(--main, #00203F);
  background: var(--elev, #F2F6FA);
  border: 1px solid var(--bdr, #CFDCE8);
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
}

.f2a-btn-secondary:hover {
  border-color: var(--acc, #FC6735);
  background: #FFF5F0;
}

/* CRM Kanban Board */
.f2a-kanban-board {
  display: grid;
  grid-template-columns: repeat(5, minmax(220px, 1fr));
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.f2a-kanban-col {
  background: var(--elev, #F2F6FA);
  border: 1px solid var(--bdr, #CFDCE8);
  border-radius: 8px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.f2a-kanban-col-hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--bdr, #CFDCE8);
}

.f2a-kanban-col-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--main, #00203F);
}

.f2a-kanban-card {
  background: var(--surf, #FFFFFF);
  border: 1px solid var(--bdr, #CFDCE8);
  border-radius: 7px;
  padding: 10px 12px;
  box-shadow: 0 2px 5px rgba(0, 32, 63, 0.05);
}

.f2a-kanban-card-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--main, #00203F);
  margin: 0 0 6px 0;
}

.f2a-nas-folder-chip {
  display: inline-block;
  padding: 2px 7px;
  margin: 2px 3px 2px 0;
  font-family: var(--font-mono, "IBM Plex Mono", monospace);
  font-size: 12px;
  color: var(--main, #00203F);
  background: var(--elev, #F2F6FA);
  border: 1px solid var(--bdr, #CFDCE8);
  border-radius: 4px;
}