/* 
 * Indiana Tech Invoice Dashboard Styles
 * Version: 1.0
 * Based on DESIGN.md specifications
 */

/* =============================================================================
   GOOGLE FONTS
   ============================================================================= */
@import url('https://fonts.googleapis.com/css2?family=Geologica:wght@400;500;600&family=Funnel+Display:wght@500;600&display=swap');

/* =============================================================================
   CSS VARIABLES - COLOR PALETTE & DESIGN TOKENS
   ============================================================================= */
:root {
  /* Brand colors */
  --brand-navy: #141A42;
  --brand-cornflower: #8AA2DF;
  --brand-cornflower-light: #A8BCEB;
  --brand-purple: #535EA4;
  --brand-muted: #848EAA;
  
  /* Background colors */
  --bg-page: #F5F7FF;
  --border: #E8EBF2;
  --secondary: #EEF0F7;
  --card-glaze-end: #F8FAFF;
  
  /* Shadows */
  --shadow-glass: inset 0 1px 0 0 rgba(255,255,255,0.8), 0 0 0 1px rgba(0,0,0,0.03);
  --shadow-float: 0 8px 30px rgba(0,0,0,0.06), 0 0 0 1px rgba(0,0,0,0.03);
  
  /* Typography */
  --font-heading: 'Funnel Display', serif;
  --font-body: 'Geologica', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

/* =============================================================================
   RESET & BASE STYLES
   ============================================================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-page);
  color: var(--brand-navy);
  line-height: 1.5;
  min-height: 100vh;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* =============================================================================
   LAYOUT - NAVIGATION
   ============================================================================= */
nav {
  background: linear-gradient(180deg, #FFFFFF 0%, var(--card-glaze-end) 100%);
  border-bottom: 1px solid rgba(255,255,255,0.6);
  box-shadow: var(--shadow-glass);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  color: var(--brand-navy);
}

#nav-auth {
  display: none;
  align-items: center;
  gap: 16px;
}

#nav-user {
  font-size: 14px;
  font-weight: 500;
  color: var(--brand-purple);
}

/* =============================================================================
   LAYOUT - MAIN CONTAINER
   ============================================================================= */
main {
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px;
}

/* =============================================================================
   TABS
   ============================================================================= */
.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--brand-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.tab-btn:hover {
  color: var(--brand-purple);
}

.tab-btn.active {
  color: var(--brand-navy);
  border-bottom-color: var(--brand-cornflower);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* =============================================================================
   BUTTONS
   ============================================================================= */
button {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-primary {
  background: var(--brand-navy);
  color: white;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn-secondary {
  background: #fff;
  color: var(--brand-navy);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-page);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* =============================================================================
   KPI CARDS
   ============================================================================= */
.kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  background: linear-gradient(180deg, #FFFFFF 0%, var(--card-glaze-end) 100%);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: 12px;
  padding: 16px;
  box-shadow: var(--shadow-glass);
}

.kpi-value {
  font-size: 22px;
  font-weight: 600;
  color: var(--brand-navy);
  margin-bottom: 4px;
}

.kpi-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--brand-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* =============================================================================
   CHARTS
   ============================================================================= */
.charts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.chart-card {
  background: linear-gradient(180deg, #FFFFFF 0%, var(--card-glaze-end) 100%);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow-glass);
  min-height: 300px;
  display: flex;
  flex-direction: column;
}

.chart-card.chart-full {
  grid-column: 1 / -1;
  min-height: 320px;
}

.chart-title {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--brand-navy);
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 11px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.legend-bullet {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.chart-canvas {
  width: 100%;
  height: 200px;
  max-height: 200px;
  display: block;
}

.chart-full .chart-canvas {
  height: 220px;
  max-height: 220px;
}

/* =============================================================================
   FILTERS PANEL
   ============================================================================= */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.page-title {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 600;
  color: var(--brand-navy);
}

.today-badge {
  display: inline-block;
  padding: 6px 12px;
  background: rgba(138,162,223,0.15);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  color: var(--brand-purple);
}

.filters-card {
  background: linear-gradient(180deg, #FFFFFF 0%, var(--card-glaze-end) 100%);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow-glass);
  margin-bottom: 20px;
}

.filters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(155px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

/* Row 2: dropdowns + buttons all on one line */
.filters-row2 {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}

.filters-row2 .filter-group {
  flex: 1 1 155px;
  min-width: 140px;
}

.filter-actions-inline {
  flex: 0 0 auto !important;
  min-width: unset !important;
}

.filter-btns {
  display: flex;
  gap: 8px;
  align-items: center;
  height: 36px;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.filter-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--brand-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.filter-input,
.filter-select {
  font-family: var(--font-body);
  font-size: 12px;
  padding: 0 10px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: white;
  color: var(--brand-navy);
  width: 100%;
  box-sizing: border-box;
}

.filter-input:focus,
.filter-select:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(138,162,223,0.45);
}

.filter-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* Ensure buttons match the height of filter inputs */
.filter-btns .btn-primary,
.filter-btns .btn-secondary {
  height: 36px;
  padding-top: 0;
  padding-bottom: 0;
  white-space: nowrap;
}

/* Column picker */
.column-picker {
  display: flex;
  align-items: center;
  gap: 16px;
}

.export-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

/* Container for column picker and export on same line */
.table-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  grid-column: 1 / -1;
}

.column-picker-dropdown {
  position: relative;
  display: inline-block;
}

.column-picker-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 12px;
  font-weight: 500;
  color: var(--brand-navy);
  cursor: pointer;
}

.column-picker-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 4px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-float);
  padding: 12px;
  max-height: 400px;
  overflow-y: auto;
  z-index: 10;
  min-width: 250px;
}

.column-picker-menu.show {
  display: block;
}

.column-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
  max-height: 300px;
  overflow-y: auto;
}

.column-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}

.column-item input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.column-picker-actions {
  display: flex;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

/* Export controls */

.export-format {
  font-size: 12px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: white;
}

/* =============================================================================
   DATA TABLE
   ============================================================================= */
.table-card {
  background: linear-gradient(180deg, #FFFFFF 0%, var(--card-glaze-end) 100%);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow-glass);
}

.tbl-wrap {
  overflow: auto;
  max-height: 68vh;
  min-height: 520px;
  border: 1px solid var(--border);
  border-radius: 12px;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 12px;
}

thead {
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--secondary);
}

thead th {
  padding: 8px 10px;
  font-size: 11px;
  font-weight: 600;
  text-align: left;
  color: var(--brand-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

tbody td {
  padding: 7px 10px;
  border-bottom: 1px solid rgba(232,235,242,0.5);
  vertical-align: top;
}

tbody tr:hover {
  background: rgba(138,162,223,0.06);
}

/* Cell types */
.wrap-cell {
  max-width: 200px;
  white-space: normal;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.wrap-wide {
  max-width: 300px;
  white-space: normal;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.mono-cell {
  font-family: var(--font-mono);
  font-size: 11px;
}

/* Fixed-width columns with text wrap */
.col-mail-subject,
th.col-mail-subject {
  width: 350px;
  min-width: 350px;
  max-width: 350px;
  white-space: normal;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.col-mail-body,
th.col-mail-body {
  width: 450px;
  min-width: 450px;
  max-width: 450px;
  white-space: normal;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.col-status,
th.col-status {
  width: 350px;
  min-width: 350px;
  max-width: 350px;
  white-space: normal;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

/* Override header's nowrap for these fixed-width columns */
thead th.col-mail-subject,
thead th.col-mail-body,
thead th.col-status {
  white-space: normal;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 600;
  white-space: nowrap;
}

.badge-success {
  background: #EAF3DE;
  color: #3B6D11;
}

.badge-warning {
  background: #FAEEDA;
  color: #854F0B;
}

.badge-danger {
  background: #FCEBEB;
  color: #A32D2D;
}

.badge-info {
  background: rgba(138,162,223,0.25);
  color: var(--brand-navy);
}

/* Copy button */
.copy-btn {
  margin-left: 6px;
  padding: 2px 6px;
  font-size: 10px;
  border-radius: 4px;
  background: var(--bg-page);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.1s;
}

.copy-btn:hover {
  background: white;
}

/* Links */
.blob-link {
  color: var(--brand-cornflower);
  text-decoration: none;
  font-weight: 500;
}

.blob-link:hover {
  text-decoration: underline;
}

/* Empty states */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--brand-muted);
  font-size: 14px;
}

/* =============================================================================
   PAGINATION
   ============================================================================= */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.pagination-info {
  font-size: 12px;
  color: var(--brand-muted);
}

.pagination-controls {
  display: flex;
  gap: 8px;
  align-items: center;
}

.page-size-select {
  font-size: 12px;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: white;
}

/* =============================================================================
   ALERTS & MESSAGES
   ============================================================================= */
.alert {
  padding: 12px 16px;
  border-radius: 10px;
  margin-bottom: 16px;
  font-size: 13px;
  font-weight: 500;
}

.alert-error {
  background: #FCEBEB;
  color: #A32D2D;
  border: 1px solid #F5D0D0;
}

.alert-success {
  background: #EAF3DE;
  color: #3B6D11;
  border: 1px solid #D5E7C3;
}

/* =============================================================================
   AUTH PAGES (SIGN-IN / SIGN-UP)
   ============================================================================= */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  background: linear-gradient(180deg, #FFFFFF 0%, var(--card-glaze-end) 100%);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: 16px;
  padding: 40px;
  box-shadow: var(--shadow-float);
  max-width: 420px;
  width: 100%;
}

.auth-title {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 600;
  color: var(--brand-navy);
  margin-bottom: 8px;
}

.auth-subtitle {
  font-size: 14px;
  color: var(--brand-muted);
  margin-bottom: 24px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--brand-navy);
}

.form-input {
  font-family: var(--font-body);
  font-size: 14px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: white;
  color: var(--brand-navy);
  width: 100%;
}

.form-input:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(138,162,223,0.45);
}

/* Password input wrapper for toggle icon */
.password-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.password-input-wrapper .form-input {
  padding-right: 44px;
}

.password-toggle {
  position: absolute;
  right: 8px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-muted);
  transition: color 0.2s ease;
  border-radius: 6px;
}

.password-toggle:hover {
  color: var(--brand-purple);
  background: var(--secondary);
}

.password-toggle:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(138,162,223,0.45);
}

.password-toggle .eye-icon {
  width: 20px;
  height: 20px;
}

.auth-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
}

.auth-link {
  text-align: center;
  font-size: 13px;
  margin-top: 16px;
}

.auth-link a {
  color: var(--brand-cornflower);
  text-decoration: none;
  font-weight: 600;
}

.auth-link a:hover {
  text-decoration: underline;
}

.sso-btn {
  width: 100%;
  padding: 12px;
  font-size: 14px;
}

/* =============================================================================
   LOADING STATE
   ============================================================================= */
.loading {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(138,162,223,0.3);
  border-top-color: var(--brand-cornflower);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* =============================================================================
   VENDOR MULTI-SELECT DROPDOWN
   ============================================================================= */

.vendor-ms {
  position: relative;
  width: 100%;
}

.vendor-ms-btn {
  font-family: var(--font-body);
  font-size: 12px;
  padding: 0 10px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: white;
  color: var(--brand-navy);
  width: 100%;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.vendor-ms-btn:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(138, 162, 223, 0.45);
}

.vendor-ms-btn.active {
  border-color: var(--brand-cornflower);
  background: #f4f7ff;
}

.vendor-ms-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.vendor-ms-arrow {
  color: var(--brand-muted);
  font-size: 10px;
  flex-shrink: 0;
  transition: transform 0.15s;
}

.vendor-ms-btn[aria-expanded="true"] .vendor-ms-arrow {
  transform: rotate(180deg);
}

.vendor-ms-panel {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 220px;
  width: max-content;
  max-width: min(320px, 90vw);
  background: white;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-float);
  z-index: 500;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.vendor-ms-panel[hidden] {
  display: none;
}

.vendor-ms-search-row {
  padding: 8px 10px 6px;
  border-bottom: 1px solid var(--border);
}

.vendor-ms-search {
  font-family: var(--font-body);
  font-size: 12px;
  width: 100%;
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: 7px;
  outline: none;
  color: var(--brand-navy);
  box-sizing: border-box;
}

.vendor-ms-search:focus {
  border-color: var(--brand-cornflower);
  box-shadow: 0 0 0 2px rgba(138, 162, 223, 0.35);
}

.vendor-ms-actions-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-bottom: 1px solid var(--border);
}

.vendor-ms-action {
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  color: var(--brand-purple);
  cursor: pointer;
  padding: 2px 0;
  letter-spacing: 0.3px;
}

.vendor-ms-action:hover {
  color: var(--brand-navy);
}

.vendor-ms-sep {
  color: var(--brand-muted);
  font-size: 12px;
}

.vendor-ms-list {
  overflow-y: auto;
  max-height: 200px;
  padding: 4px 0;
}

.vendor-ms-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  cursor: pointer;
}

.vendor-ms-item:hover {
  background: var(--bg-page);
}

.vendor-ms-item input[type="checkbox"] {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  cursor: pointer;
  accent-color: var(--brand-purple);
}

.vendor-ms-item label {
  font-size: 12px;
  color: var(--brand-navy);
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.vendor-ms-empty {
  padding: 12px;
  font-size: 12px;
  color: var(--brand-muted);
  text-align: center;
}

/* =============================================================================
   RESPONSIVE DESIGN
   ============================================================================= */
@media (max-width: 560px) {
  .charts {
    grid-template-columns: 1fr;
  }
  
  .filters-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .kpis {
    grid-template-columns: repeat(2, 1fr);
  }
  
  main {
    padding: 16px;
  }
}