/* =================================================================
 * US Banking Atlas — Design System
 * Tokens: warm white + graphite + CMU crimson
 * No bento. No marketing. No pies.
 * ================================================================= */

:root {
  /* Color tokens */
  --warm-white: #F4F1EC;
  --warm-white-2: #ECEAE4;
  --graphite: #1B1D22;
  --graphite-2: #23262C;
  --graphite-3: #2A2D34;
  --graphite-line: #3A3D45;
  --crimson: #B41E1E;
  --crimson-2: #D24A4A;
  --crimson-soft: rgba(180, 30, 30, 0.10);
  --ink: #18191C;
  --ink-2: #4A4D55;
  --ink-3: #80848F;
  --ink-4: #A3A7B0;
  --positive: #4A8E5A;
  --warning: #C9982A;
  --negative: #B33A2A;

  /* Type */
  --font-display: 'Inter Display', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, system-ui, sans-serif;
  --font-text: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-serif: 'Newsreader', 'Noto Serif SC', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Menlo, Monaco, monospace;

  /* Radius — 12-16px discipline */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-pill: 999px;

  /* Spacing */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-7: 32px;
  --sp-8: 40px;
  --sp-9: 48px;
  --sp-10: 64px;

  /* Motion */
  --t-fast: 120ms cubic-bezier(0.2, 0, 0.2, 1);
  --t-base: 200ms cubic-bezier(0.2, 0, 0.2, 1);
  --t-slow: 360ms cubic-bezier(0.2, 0, 0.2, 1);

  /* Layout */
  --page-pad: clamp(20px, 4vw, 48px);
  --content-max: 1320px;
  --hero-h: 88vh;
}

/* Light scheme is the default for the showcase data tables; dark hero is the only dark surface */
@media (prefers-color-scheme: light) {
  :root { color-scheme: light; }
}
@media (prefers-color-scheme: dark) {
  :root { color-scheme: dark; }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-text);
  color: var(--ink);
  background: var(--warm-white);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--crimson); text-decoration: none; }
a:hover { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.01em; margin: 0; }
h1 { font-size: clamp(40px, 6vw, 76px); line-height: 1.04; }
h2 { font-size: clamp(28px, 3.5vw, 44px); line-height: 1.1; }
h3 { font-size: 22px; line-height: 1.2; }
h4 { font-size: 16px; line-height: 1.25; }

.serif { font-family: var(--font-serif); }
.mono { font-family: var(--font-mono); font-feature-settings: 'tnum' 1, 'cv11' 1; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}

.num { font-family: var(--font-mono); font-feature-settings: 'tnum' 1; }
.num--xl { font-size: clamp(48px, 6vw, 96px); font-weight: 500; color: var(--crimson); letter-spacing: -0.04em; line-height: 0.95; }
.num--lg { font-size: clamp(28px, 3vw, 44px); font-weight: 500; color: var(--crimson); letter-spacing: -0.02em; line-height: 1; }
.num--md { font-size: 18px; font-weight: 500; color: var(--crimson); }

/* ---------- Layout ---------- */
.page { min-height: 100vh; }
.container { max-width: var(--content-max); margin: 0 auto; padding: 0 var(--page-pad); }

.section { padding: var(--sp-10) 0; border-top: 1px solid rgba(0,0,0,0.06); }
.section--tight { padding: var(--sp-8) 0; }
.section__head { margin-bottom: var(--sp-7); display: flex; align-items: end; justify-content: space-between; gap: var(--sp-5); flex-wrap: wrap; }
.section__head__title { max-width: 720px; }
.section__head__meta { color: var(--ink-3); font-size: 14px; }

/* ---------- Hero (dark city) ---------- */
.hero {
  position: relative;
  min-height: var(--hero-h);
  background: radial-gradient(ellipse at 30% 30%, rgba(180,30,30,0.10) 0%, transparent 60%),
              linear-gradient(180deg, #131418 0%, #1B1D22 60%, #23262C 100%);
  color: var(--warm-white);
  padding: var(--sp-9) 0 var(--sp-8);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(90deg, rgba(244,241,236,0.04) 1px, transparent 1px),
    linear-gradient(0deg, rgba(244,241,236,0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: -1px -1px;
  pointer-events: none;
  mask-image: linear-gradient(180deg, transparent, black 30%, black 70%, transparent);
}
.hero__topbar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: clamp(48px, 8vw, 96px);
  font-size: 14px;
  color: var(--warm-white);
}
.hero__brand {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  font-size: 13px;
  color: var(--warm-white);
  text-transform: uppercase;
}
.hero__brand__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--crimson); }
.hero__nav { display: flex; gap: var(--sp-6); }
.hero__nav a { color: rgba(244,241,236,0.7); }
.hero__nav a:hover { color: var(--warm-white); text-decoration: none; }
.hero__cta {
  padding: 6px 14px;
  background: var(--crimson);
  color: var(--warm-white);
  border-radius: var(--r-pill);
  font-size: 13px;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.hero__cta:hover { background: var(--crimson-2); text-decoration: none; }

.hero__grid {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--sp-9);
  align-items: end;
}
@media (max-width: 900px) { .hero__grid { grid-template-columns: 1fr; } }

.hero__lede h1 { color: var(--warm-white); margin-bottom: var(--sp-5); }
.hero__lede__sub {
  font-family: var(--font-serif);
  font-size: clamp(18px, 1.6vw, 22px);
  color: rgba(244,241,236,0.78);
  max-width: 540px;
  line-height: 1.4;
}
.hero__lede__lead {
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--crimson-2);
  margin-bottom: var(--sp-5);
}

.hero__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-7) var(--sp-5);
}
@media (max-width: 700px) { .hero__stats { grid-template-columns: 1fr 1fr; gap: var(--sp-5); } }
.hero__stat__num { display: block; color: var(--crimson); line-height: 0.95; }
.hero__stat__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: rgba(244,241,236,0.55);
  margin-top: var(--sp-2);
}

.hero__ticker {
  margin-top: var(--sp-7);
  border-top: 1px solid rgba(244,241,236,0.10);
  padding-top: var(--sp-4);
  display: flex; gap: var(--sp-7);
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(244,241,236,0.6);
}
.hero__ticker span { display: inline-flex; align-items: center; gap: var(--sp-2); }
.hero__ticker span b { color: var(--warm-white); font-weight: 500; }

/* ---------- Glass card ---------- */
.glass {
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--r-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: var(--sp-6);
}
.glass--dark {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(244,241,236,0.10);
  color: var(--warm-white);
}
.glass--inset {
  background: rgba(255,255,255,0.50);
  border: 1px solid rgba(0,0,0,0.05);
  border-radius: var(--r-md);
  padding: var(--sp-4);
}

/* ---------- Filter bar ---------- */
.filterbar {
  display: flex; flex-wrap: wrap; gap: var(--sp-2);
  align-items: center;
  padding: var(--sp-3) var(--sp-3);
  background: var(--warm-white-2);
  border: 1px solid rgba(0,0,0,0.05);
  border-radius: var(--r-md);
  margin-bottom: var(--sp-6);
}
.filterbar__group { display: inline-flex; gap: var(--sp-2); align-items: center; }
.filterbar__label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--ink-3);
  padding: 0 var(--sp-2);
}
.chip {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 12px;
  border-radius: var(--r-pill);
  background: transparent;
  border: 1px solid rgba(0,0,0,0.10);
  color: var(--ink-2);
  cursor: pointer;
  transition: var(--t-fast);
  letter-spacing: 0.02em;
}
.chip:hover { background: rgba(0,0,0,0.04); }
.chip[aria-pressed="true"] {
  background: var(--graphite);
  color: var(--warm-white);
  border-color: var(--graphite);
}
.chip[aria-pressed="true"].chip--crimson {
  background: var(--crimson);
  color: var(--warm-white);
  border-color: var(--crimson);
}
.chip--crimson { color: var(--crimson); border-color: rgba(180,30,30,0.30); }

.search {
  flex: 1 1 240px;
  display: flex; align-items: center; gap: var(--sp-2);
  background: var(--warm-white);
  border: 1px solid rgba(0,0,0,0.10);
  border-radius: var(--r-pill);
  padding: 4px 12px;
  min-width: 220px;
}
.search input {
  flex: 1;
  border: 0;
  outline: 0;
  background: transparent;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
  padding: 4px 0;
}
.search svg { color: var(--ink-3); }

/* ---------- Bank grid ---------- */
.bank-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--sp-4);
}
.bank-card {
  background: var(--warm-white);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--r-md);
  padding: var(--sp-5);
  display: flex; flex-direction: column;
  gap: var(--sp-3);
  position: relative;
  transition: var(--t-base);
  cursor: default;
}
.bank-card:hover { transform: translateY(-1px); border-color: rgba(0,0,0,0.14); }
.bank-card__head { display: flex; justify-content: space-between; align-items: start; gap: var(--sp-3); }
.bank-card__name { font-weight: 600; font-size: 16px; line-height: 1.3; color: var(--ink); }
.bank-card__tier {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.10em;
  padding: 2px 8px;
  border-radius: var(--r-pill);
  background: var(--graphite);
  color: var(--warm-white);
  text-transform: uppercase;
  white-space: nowrap;
}
.bank-card__tier[data-tier="T1"] { background: var(--crimson); }
.bank-card__tier[data-tier="T2"] { background: #2A2D34; }
.bank-card__tier[data-tier="T3"] { background: #4A4D55; }
.bank-card__tier[data-tier="T4"] { background: #6B6E78; }
.bank-card__tier[data-tier="T5"] { background: #2C5F7C; }
.bank-card__tier[data-tier="T6"] { background: #6B3E2C; }
.bank-card__tier[data-tier="T7"] { background: #4E5D2C; }
.bank-card__tier[data-tier="T8"] { background: #2D2D2D; }

.bank-card__meta { display: flex; gap: var(--sp-3); color: var(--ink-3); font-size: 13px; flex-wrap: wrap; }
.bank-card__meta span { display: inline-flex; gap: 4px; align-items: center; }
.bank-card__meta svg { color: var(--ink-4); }
.bank-card__notes { font-size: 13px; color: var(--ink-2); line-height: 1.5; }
.bank-card__foot {
  display: flex; align-items: center; gap: var(--sp-3);
  padding-top: var(--sp-3);
  border-top: 1px dashed rgba(0,0,0,0.08);
  font-size: 12px;
  color: var(--ink-3);
  font-family: var(--font-mono);
  flex-wrap: wrap;
}
.bank-card__assets { color: var(--crimson); font-weight: 500; }

/* ---------- Card matrix ---------- */
.card-matrix {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--sp-3);
}
.cc {
  background: var(--warm-white);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--r-md);
  padding: var(--sp-4);
  position: relative;
  display: flex; flex-direction: column; gap: var(--sp-2);
  transition: var(--t-base);
  overflow: hidden;
}
.cc:hover { border-color: rgba(0,0,0,0.14); }
.cc__visual { width: 100%; aspect-ratio: 1.586 / 1; max-width: 100%; border-radius: var(--r-sm); overflow: hidden; }
.cc__visual svg { width: 100%; height: 100%; display: block; }
.cc__name { font-weight: 600; font-size: 14px; line-height: 1.3; }
.cc__issuer { color: var(--ink-3); font-size: 12px; font-family: var(--font-mono); }
.cc__row { display: flex; gap: var(--sp-2); flex-wrap: wrap; align-items: center; }
.cc__pill {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 8px;
  border-radius: var(--r-pill);
  background: rgba(0,0,0,0.06);
  color: var(--ink-2);
}
.cc__pill--fee { background: var(--crimson-soft); color: var(--crimson); }
.cc__pill--net[data-net="Visa"] { background: #1A1F71; color: #F7B600; }
.cc__pill--net[data-net="Mastercard"] { background: #1B1D22; color: #EB001B; }
.cc__pill--net[data-net="Amex"] { background: #006FCF; color: #FFFFFF; }
.cc__pill--net[data-net="Discover"] { background: #FF6000; color: #FFFFFF; }
.cc__rewards { font-size: 12px; color: var(--ink-3); line-height: 1.45; }

/* ---------- Loan / product table ---------- */
.t-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.t-table th, .t-table td {
  text-align: left;
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  vertical-align: top;
}
.t-table th {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--ink-3);
  font-weight: 500;
  background: var(--warm-white-2);
  position: sticky; top: 0; z-index: 1;
}
.t-table tr:hover td { background: var(--warm-white-2); }
.t-table td.num { color: var(--crimson); font-family: var(--font-mono); }

.t-category { font-weight: 600; color: var(--ink); }
.t-sub { color: var(--ink-2); font-size: 13px; }
.t-providers { font-size: 12px; color: var(--ink-3); }

/* ---------- Sticky section subhead ---------- */
.subhead {
  display: flex; gap: var(--sp-4); align-items: baseline;
  margin-bottom: var(--sp-4);
}
.subhead h3 { font-size: 22px; }
.subhead .meta { color: var(--ink-3); font-size: 13px; font-family: var(--font-mono); }

/* ---------- Map ---------- */
.map-wrap { height: calc(100vh - 64px); display: grid; grid-template-columns: 360px 1fr; }
@media (max-width: 900px) { .map-wrap { grid-template-columns: 1fr; } .map-wrap > aside { max-height: 30vh; } }
.map-side { overflow: auto; padding: var(--sp-5); border-right: 1px solid rgba(0,0,0,0.08); background: var(--warm-white); }
.map-side h2 { font-size: 20px; }
.map-side__bank {
  padding: var(--sp-3) var(--sp-3);
  border-radius: var(--r-sm);
  cursor: pointer;
  display: flex; gap: var(--sp-2);
  align-items: start;
  transition: var(--t-fast);
}
.map-side__bank:hover { background: var(--warm-white-2); }
.map-side__bank--active { background: var(--crimson-soft); }
.map-side__bank__name { font-size: 13px; font-weight: 500; line-height: 1.3; }
.map-side__bank__meta { font-size: 11px; color: var(--ink-3); font-family: var(--font-mono); margin-top: 2px; }
.map-canvas { width: 100%; height: 100%; }
.map-stats {
  display: flex; gap: var(--sp-4); margin: var(--sp-4) 0; flex-wrap: wrap;
}
.map-stats__item {
  flex: 1 1 60px;
  padding: var(--sp-3);
  background: var(--warm-white-2);
  border-radius: var(--r-sm);
  border: 1px solid rgba(0,0,0,0.05);
}
.map-stats__item__num { color: var(--crimson); font-family: var(--font-mono); font-size: 18px; font-weight: 500; line-height: 1; }
.map-stats__item__lbl { font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.10em; color: var(--ink-3); margin-top: 4px; display: block; }

.leaflet-popup-content { font-family: var(--font-mono); }
.leaflet-popup-content h4 { font-family: var(--font-display); font-size: 14px; margin-bottom: 4px; }
.leaflet-popup-content .tier { color: var(--crimson); font-weight: 500; }

/* ---------- Footer ---------- */
.foot {
  background: var(--graphite);
  color: rgba(244,241,236,0.7);
  padding: var(--sp-9) 0 var(--sp-6);
  margin-top: var(--sp-10);
}
.foot h4 { color: var(--warm-white); margin-bottom: var(--sp-2); }
.foot a { color: rgba(244,241,236,0.7); }
.foot a:hover { color: var(--warm-white); }
.foot__row { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--sp-7); }
@media (max-width: 700px) { .foot__row { grid-template-columns: 1fr 1fr; } }
.foot__bot { margin-top: var(--sp-7); padding-top: var(--sp-5); border-top: 1px solid rgba(244,241,236,0.10); font-size: 12px; color: rgba(244,241,236,0.45); display: flex; gap: var(--sp-4); flex-wrap: wrap; }
.foot__bot b { color: var(--warm-white); font-weight: 500; }

/* ---------- Skeleton / loading ---------- */
.skel {
  background: linear-gradient(90deg, var(--warm-white-2) 0%, var(--warm-white) 50%, var(--warm-white-2) 100%);
  background-size: 200% 100%;
  animation: skel 1.4s linear infinite;
  border-radius: var(--r-sm);
}
@keyframes skel { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ---------- Tooltip ---------- */
.tip {
  position: absolute; pointer-events: none;
  background: var(--graphite);
  color: var(--warm-white);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 8px;
  border-radius: var(--r-sm);
  opacity: 0;
  transform: translate(-50%, -120%);
  transition: opacity var(--t-fast);
  white-space: nowrap;
}

/* ---------- Entrance animation ---------- */
.fade-in { opacity: 0; transform: translateY(8px); animation: rise 600ms cubic-bezier(0.2,0,0.2,1) forwards; }
.fade-in.d1 { animation-delay: 60ms; }
.fade-in.d2 { animation-delay: 120ms; }
.fade-in.d3 { animation-delay: 200ms; }
.fade-in.d4 { animation-delay: 280ms; }
.fade-in.d5 { animation-delay: 360ms; }
.fade-in.d6 { animation-delay: 440ms; }
@keyframes rise { to { opacity: 1; transform: translateY(0); } }

@media (prefers-reduced-motion: reduce) {
  .fade-in { animation: none; opacity: 1; transform: none; }
  * { transition: none !important; animation: none !important; }
}

/* ---------- Hidden by default ---------- */
[hidden] { display: none !important; }