/* ── Fonts ────────────────────────────────────────────────────────── */
@font-face {
  font-family: 'Visa Dialect';
  src: url('assets/fonts/VisaDialect-Light.woff2') format('woff2'),
       url('assets/fonts/VisaDialect-Light.woff') format('woff');
  font-weight: 300;
  font-display: swap;
}
@font-face {
  font-family: 'Visa Dialect';
  src: url('assets/fonts/VisaDialect-Regular.woff2') format('woff2'),
       url('assets/fonts/VisaDialect-Regular.woff') format('woff');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'Visa Dialect';
  src: url('assets/fonts/VisaDialect-Medium.woff2') format('woff2'),
       url('assets/fonts/VisaDialect-Medium.woff') format('woff');
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: 'Visa Dialect';
  src: url('assets/fonts/VisaDialect-Semibold.woff2') format('woff2'),
       url('assets/fonts/VisaDialect-Semibold.woff') format('woff');
  font-weight: 600;
  font-display: swap;
}

/* ── Design tokens ────────────────────────────────────────────────── */
:root {
  --visa-blue:            #112AA7;
  --visa-gold:            #FCC015;
  --visa-dark-navy:       #15195A;
  --red:                  #AD2929;
  --font-primary:         #02041C;
  --font-secondary:       #464853;
  --font-tertiary:        #808080;
  --component-border:     #808080;
  --component-background: #F0F0F0;
  --component-active:     #1434CB;
  --graph-border:         #ABABAB;
  --graph-line:           #CCCACA;
  --chart-blue:           #112AA7;
  --chart-light-blue:     #98C7E7;
  --chart-violet:         #9187D6;
  --chart-lavender:       #CDC4E0;
  --chart-light-lavender: #F3F2FD;
  --white:                #FFFFFF;

  --font-stack: 'Visa Dialect', system-ui, -apple-system, sans-serif;
  --panel-radius: 4px;
  --panel-shadow: 0 1px 4px rgba(21,25,90,0.08), 0 0 0 1px rgba(21,25,90,0.06);
  --content-max: 1600px;
  --page-pad: 24px;
  --grid-gap: 24px;
  --right-col-width: 370px;
}

/* ── Reset & base ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 14px;
  overflow-x: hidden; /* prevent horizontal scroll from chart overflow at mobile */
}

body {
  font-family: var(--font-stack);
  color: var(--font-primary);
  background: #F5F5F5;
  min-height: 100vh;
  overflow-x: hidden;
}

ul { list-style: none; }

button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ── Top navigation ───────────────────────────────────────────────── */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  background: var(--visa-dark-navy);
  padding: 0 var(--page-pad);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 30px;
  flex-shrink: 0;
}

.visa-logo {
  display: block;
  height: 23px;
  width: auto;
}

.nav-app-name {
  font-size: 20px;
  font-weight: 600;
  color: var(--white);
  white-space: nowrap;
}

/* Right side: stretches to full nav height so child links can too */
.nav-right {
  display: flex;
  align-self: stretch;   /* fills the 80px nav height */
  align-items: center;   /* icons stay vertically centered within 80px */
  gap: 40px;
}

.nav-links {
  display: flex;
  align-self: stretch;   /* fills the 80px nav-right height */
  align-items: center;   /* non-active links float to vertical center */
  gap: 4px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 46px;      /* gives non-active links a proper pill-shaped hover area */
  padding: 0 14px;
  font-size: 13px;
  font-weight: 400;
  color: rgba(255,255,255,0.80);
  text-decoration: none;
  position: relative;
  transition: color 0.15s;
  white-space: nowrap;
}

/* Hover: simple rounded background on non-active links */
.nav-link:not(.nav-link--active):hover {
  color: var(--white);
  background: rgba(255,255,255,0.12);
  border-radius: 6px;
}

/* Active link: explicit 80px = full nav height */
.nav-link--active {
  height: 80px;
  isolation: isolate;
  color: var(--white);
  font-weight: 500;
}

/*
 * Blue pill: bottom-anchored 12px above the gold underline.
 * This mirrors the Figma structure: Tab Element Frame has pb-12px before the line.
 * Pill occupies bottom 12px+46px = 58px zone; above it is ~22px breathing room.
 */
.nav-link--active::before {
  content: '';
  position: absolute;
  bottom: 14px;
  left: 0;
  right: 0;
  height: 46px;
  background: var(--visa-blue);
  border-radius: 6px;
  z-index: -1;
}

/* Gold underline: pinned to the very bottom of the 80px nav bar */
.nav-link--active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--visa-gold);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.nav-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 6px;
  transition: background 0.15s;
}

.nav-icon-btn:hover {
  background: rgba(255,255,255,0.12);
}

/* ── Main content ─────────────────────────────────────────────────── */
.main-content {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 144px var(--page-pad) 72px; /* 80px fixed nav + 64px design space */
}

.page-title {
  font-size: 52px;
  font-weight: 600;
  color: var(--font-primary);
  margin-bottom: 28px;
  letter-spacing: 0;
}

/* ── Filter bar ───────────────────────────────────────────────────── */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

/* Label sits to the left of the dropdown, inline */
.filter-group {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
}

.filter-label {
  font-size: 14px;
  font-weight: 400;
  color: var(--font-secondary);
  white-space: nowrap;
}

.filter-dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  min-height: 38px;
  border: 1px solid var(--component-border);
  border-radius: 4px;
  background: var(--white);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  user-select: none;
}

/* Per-field widths sized to their longest option */
.filter-group--country          .filter-dropdown { width: 270px; }
.filter-group--year             .filter-dropdown { width: 110px; }
.filter-group--value-type       .filter-dropdown { width: 210px; }
.filter-group--transaction-type .filter-dropdown { width: 190px; }
.filter-group--card-type        .filter-dropdown { width: 150px; }

.filter-dropdown:hover {
  border-color: var(--visa-blue);
  background: #F7F8FF;
}

.filter-value {
  font-size: 13px;
  font-weight: 400;
  color: var(--font-primary);
  flex: 1;
}

/* Chevron is always visa-blue; rotates when dropdown is open */
.filter-chevron {
  color: var(--visa-blue);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.filter-dropdown.is-open {
  border-color: var(--visa-blue);
}

.filter-dropdown.is-open .filter-chevron {
  transform: rotate(180deg);
}

/* ── Dropdown menu ────────────────────────────────────────────────── */
.dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: -1px;
  min-width: calc(100% + 2px);
  z-index: 500;
  background: var(--white);
  border: 1px solid var(--component-border);
  border-radius: 4px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  padding: 4px 0;
  overflow: hidden;
}

.dropdown-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  font-size: 13px;
  font-family: var(--font-stack);
  color: var(--font-primary);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
}

.dropdown-option:hover {
  background: var(--component-background);
}

.dropdown-option--selected {
  color: var(--visa-blue);
  font-weight: 500;
}

.dropdown-checkmark {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--visa-blue);
}

.dropdown-option:not(.dropdown-option--selected) .dropdown-checkmark {
  visibility: hidden;
}

/* ── Dashboard grid ───────────────────────────────────────────────── */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr var(--right-col-width);
  gap: var(--grid-gap);
  align-items: start;
}

.col-left,
.col-right {
  display: flex;
  flex-direction: column;
  gap: var(--grid-gap);
  min-width: 0; /* allow grid children to shrink below content size */
}

/* ── Chart sections & panels ──────────────────────────────────────── */
.chart-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.section-title {
  font-size: 20px;
  font-weight: 500;
  color: var(--font-primary);
  letter-spacing: -0.1px;
}

.col-left .section-title {
  letter-spacing: 0;
}

.col-left .panel-header {
  margin-bottom: 4px;
}

.col-right .section-title {
  font-size: 19px;
}

.chart-panel {
  background: var(--white);
  border-radius: var(--panel-radius);
  box-shadow: var(--panel-shadow);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  overflow: hidden; /* clip canvas overflow within panel bounds */
}

/* ── Panel header (toggle + legend row) ───────────────────────────── */
.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.panel-header--no-legend {
  justify-content: flex-start;
}

/* ── Chart toggle buttons ─────────────────────────────────────────── */
.chart-toggle {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid var(--component-active);
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
}

.toggle-btn {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  font-size: 13px;
  font-weight: 400;
  font-family: var(--font-stack);
  color: var(--font-secondary);
  background: var(--white);
  border: none;
  border-right: 1px solid var(--component-active);
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
  white-space: nowrap;
}

.toggle-btn:last-child {
  border-right: none;
}

/* Mobile label swap — short versions shown only at ≤640px */
.toggle-short { display: none; }

.toggle-btn:hover {
  color: var(--font-primary);
  background: var(--component-background);
}

.toggle-btn--active {
  color: var(--font-primary);
  background: var(--component-background);
  font-weight: 500;
  /* heavy bottom stroke + inner depth shadow from Figma */
  box-shadow:
    inset 0 -3px 0 var(--component-active),
    inset 0 0 4px 1px rgba(0,0,0,0.20),
    inset 0 0 4px 0px rgba(0,0,0,0.10);
}

.toggle-btn--active:hover {
  background: #E4E4E4;
  box-shadow:
    inset 0 -3px 0 var(--component-active),
    inset 0 0 4px 1px rgba(0,0,0,0.20),
    inset 0 0 4px 0px rgba(0,0,0,0.10);
}

/* ── Chart legend (monthly trends color key) ──────────────────────── */
.chart-legend {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

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

.legend-swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 2px;
  flex-shrink: 0;
}

.legend-label {
  font-size: 13px;
  color: var(--font-secondary);
}

/* ── Panel text elements ──────────────────────────────────────────── */
.panel-subtitle {
  font-size: 16px;
  font-weight: 400;
  color: var(--font-secondary);
  line-height: 1.4;
}

.panel-note {
  font-size: 16px;
  color: var(--font-tertiary);
  margin-top: -4px;
  margin-bottom: 10px;
}

.panel-total {
  font-size: 16px;
  font-weight: 500;
  color: var(--font-primary);
  letter-spacing: -0.2px;
}

.panel-overall {
  font-size: 16px;
  font-weight: 500;
  color: var(--font-primary);
  letter-spacing: -0.2px;
}

/* ── Canvas wrappers (height control) ────────────────────────────── */
.chart-canvas-wrap {
  position: relative;
  width: 100%;
  min-width: 0;
}

.chart-canvas-wrap canvas {
  display: block;
  max-width: 100%;
}

.chart-canvas-wrap--monthly {
  height: 700px;
}

.chart-canvas-wrap--industry {
  height: 700px;
}

.chart-canvas-wrap--cities {
  height: 190px;
}

.chart-canvas-wrap--donut {
  height: 223px;
}

.chart-canvas-wrap--crossborder {
  height: 180px;
}

/* Cross-border ticket section nudged 1px to align its panel top with Industry panel top */
#section-cross-ticket { margin-top: 1px; }

/* ── Footer ───────────────────────────────────────────────────────── */
.site-footer {
  background: #E9E9E9;
  width: 100%;
}

.footer-img {
  display: block;
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  height: auto;
}

/* ── Heatmap tooltip ──────────────────────────────────────────────── */
#heatmap-tooltip {
  position: fixed;
  display: none;
  background: var(--white);
  border: 1px solid var(--graph-line);
  border-radius: 6px;
  padding: 10px 14px;
  pointer-events: none;
  z-index: 1500;
  box-shadow: 0 4px 16px rgba(0,0,0,0.13), 0 1px 4px rgba(0,0,0,0.07);
  font-family: var(--font-stack);
  min-width: 155px;
}

.htm-industry {
  font-size: 12px;
  font-weight: 500;
  color: var(--font-primary);
  margin-bottom: 2px;
  line-height: 1.3;
}

.htm-year {
  font-size: 11px;
  color: var(--font-tertiary);
  margin-bottom: 8px;
}

.htm-value {
  font-size: 22px;
  font-weight: 600;
  line-height: 1;
  margin-bottom: 3px;
}

.htm-label {
  font-size: 10px;
  color: var(--font-tertiary);
  letter-spacing: 0.2px;
  text-transform: uppercase;
}

/* ── Mobile filter bar ────────────────────────────────────────────── */
.mobile-filter-bar {
  display: none;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 20px;
}

.mobile-show-filters-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 14px;
  border: 1px solid var(--component-active);
  border-radius: 6px;
  background: transparent;
  color: var(--component-active);
  font-family: var(--font-stack);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.25px;
  cursor: pointer;
  transition: background 0.15s;
}

.mobile-show-filters-btn:hover {
  background: rgba(20,52,203,0.06);
}

/* ── Filter chips ─────────────────────────────────────────────────── */
.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 0;
  padding: 1px 1px 1px 8px;
  border: 1px solid var(--component-active);
  border-radius: 999px;
  background: var(--white);
  font-family: var(--font-stack);
}

.filter-chip-label {
  font-size: 13px;
  font-weight: 400;
  line-height: 18px;
  color: var(--font-primary);
  white-space: nowrap;
  padding: 0 2px;
}

.filter-chip-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: none;
  background: none;
  color: var(--font-secondary);
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.15s;
}

.filter-chip-close:hover {
  background: var(--component-background);
}

/* ── Nav hamburger ────────────────────────────────────────────────── */
.nav-hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 4px;
}

/* ── Filter modal overlay ─────────────────────────────────────────── */
.filter-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.25);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 160px 12px 24px;
}

.filter-modal-overlay.is-open {
  display: flex;
}

.filter-modal {
  background: var(--white);
  border-radius: 8px;
  box-shadow: 0 4px 20px 2px rgba(0,0,0,0.25), 0 20px 25px -5px rgba(0,0,0,0.1);
  width: 100%;
  max-width: 380px;
  overflow: visible;
}

.filter-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--graph-line);
}

.filter-modal-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--font-primary);
  line-height: 26px;
}

.filter-modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  background: none;
  color: var(--font-secondary);
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.15s;
  flex-shrink: 0;
}

.filter-modal-close:hover {
  background: var(--component-background);
}

.filter-modal-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 20px 20px 4px;
  overflow: visible;
}

.filter-modal-group {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
}

.filter-modal-label {
  font-size: 12px;
  font-weight: 400;
  color: var(--font-secondary);
  white-space: nowrap;
  width: 108px;
  flex-shrink: 0;
  text-align: right;
}

.filter-modal-group .filter-dropdown {
  display: flex;
  flex: 1;
  width: auto;
  min-width: 0;
}

.filter-modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 20px;
  border-top: 1px solid var(--graph-line);
  margin-top: 16px;
}

.filter-modal-btn {
  height: 36px;
  padding: 0 18px;
  border-radius: 6px;
  font-family: var(--font-stack);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.25px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.filter-modal-btn--primary {
  background: var(--component-active);
  border: 1px solid var(--component-active);
  color: var(--white);
}

.filter-modal-btn--primary:hover {
  background: var(--visa-dark-navy);
  border-color: var(--visa-dark-navy);
}

.filter-modal-btn--secondary {
  background: transparent;
  border: 1px solid var(--component-active);
  color: var(--component-active);
}

.filter-modal-btn--secondary:hover {
  background: rgba(20,52,203,0.06);
}

/* ── Responsive ───────────────────────────────────────────────────── */
@media (max-width: 1599px) {
  :root {
    --right-col-width: 320px;
    --page-pad: 20px;
  }

  .page-title { font-size: 40px; }

  .chart-canvas-wrap--monthly     { height: 540px; }
  .chart-canvas-wrap--industry    { height: 540px; }
  .chart-canvas-wrap--cities      { height: 165px; }
  .chart-canvas-wrap--donut       { height: 195px; }
  .chart-canvas-wrap--crossborder { height: 155px; }
}

@media (max-width: 1100px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .col-right {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--grid-gap);
  }

  .chart-canvas-wrap--monthly  { height: 360px; }
  .chart-canvas-wrap--industry { height: 480px; }
}

@media (max-width: 640px) {
  :root { --page-pad: 12px; }

  .main-content { padding-top: 104px; } /* 80px nav + 24px design space (tighter on mobile) */

  .col-right { grid-template-columns: 1fr; }

  /* Nav: show hamburger, hide links and desktop icons */
  .nav-links               { display: none; }
  .nav-icon-desktop        { display: none; }
  .nav-hamburger           { display: flex; }
  .nav-app-name            { font-size: 11px; }

  /* Title */
  .page-title              { font-size: 32px; margin-bottom: 16px; }

  /* Filter: hide desktop bar, show mobile bar */
  .filter-bar              { display: none; }
  .mobile-filter-bar       { display: flex; }

  /* Chart panel padding reduced at mobile */
  .chart-panel             { padding: 16px; }

  /* Industry toggle: swap labels, tighten sizing */
  .toggle-full             { display: none; }
  .toggle-short            { display: inline; }
  .toggle-btn              { font-size: 11px; padding: 0 10px; }

  /* Chart sizes */
  .chart-canvas-wrap--monthly     { height: 260px; }
  .chart-canvas-wrap--industry    { height: 340px; }
  .chart-canvas-wrap--cities      { height: 170px; }
  .chart-canvas-wrap--donut       { height: 200px; }
  .chart-canvas-wrap--crossborder { height: 150px; }
}