:root {
  --purple-950: #1e0538;
  --purple-900: #2d0a52;
  --purple-800: #3b0a6b;
  --purple-700: #5a179c;
  --purple-600: #7b2fd1;
  --purple-500: #a100ff; /* Accenture core purple */
  --purple-300: #c99bff;
  --purple-100: #efe4ff;
  --purple-50: #f8f4ff;

  --ink: #1b1530;
  --ink-soft: #5b5470;
  --line: #e4dcf2;
  --surface: #ffffff;
  --bg: #f5f1fb;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(45, 10, 82, .06), 0 8px 24px rgba(45, 10, 82, .08);
  --font: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;

  --banner-h: 230px;
  --side-w: 400px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
}

a { color: var(--purple-700); }
a:hover { color: var(--purple-500); }

h1, h2, h3 { line-height: 1.2; margin: 0; }

/* ---------- Banner ---------- */

.banner {
  position: relative;
  min-height: var(--banner-h);
  display: flex;
  align-items: flex-end;
  padding: 28px 32px;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(30, 5, 56, .95) 0%, rgba(59, 10, 107, .82) 38%, rgba(123, 47, 209, .25) 72%, rgba(161, 0, 255, .05) 100%),
    url("../assets/banner-ebike.jpg") 70% 62% / cover no-repeat;
  overflow: hidden;
}

.banner__content { max-width: 620px; position: relative; }

.banner__kicker {
  margin: 0 0 6px;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--purple-300);
}

.banner h1 {
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -.02em;
}

.banner__lead {
  margin: 10px 0 0;
  font-size: clamp(.95rem, 1.4vw, 1.08rem);
  color: rgba(255, 255, 255, .88);
  max-width: 54ch;
}

.banner__logo {
  position: absolute;
  top: 20px;
  right: 24px;
  display: block;
  padding: 10px 16px;
  background: rgba(255, 255, 255, .94);
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(30, 5, 56, .25);
  backdrop-filter: blur(6px);
}

.banner__logo img { display: block; width: 130px; height: auto; }

/* ---------- Layout ---------- */

.app {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--side-w);
  gap: 20px;
  padding: 20px;
  height: max(560px, calc(100vh - var(--banner-h)));
  height: max(560px, calc(100dvh - var(--banner-h)));
}

.map-pane {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--purple-100);
  min-height: 0;
}

#map { position: absolute; inset: 0; }

.side {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-height: 0;
  overflow-y: auto;
  padding-right: 2px;
  scrollbar-width: thin;
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

.card h2 {
  font-size: 1.1rem;
  font-weight: 750;
  color: var(--purple-900);
  display: flex;
  align-items: center;
  gap: 10px;
}

.card h2::before {
  content: "";
  width: 6px;
  height: 18px;
  border-radius: 3px;
  background: linear-gradient(var(--purple-500), var(--purple-700));
}

.card__intro { margin: 6px 0 14px; color: var(--ink-soft); font-size: .9rem; }

/* ---------- Layer toggles ---------- */

.layer { padding-top: 16px; }
.layer + .layer { margin-top: 16px; border-top: 1px solid var(--line); }

.switch {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  font-weight: 650;
}

.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }

.switch__track {
  flex: none;
  position: relative;
  width: 44px;
  height: 26px;
  border-radius: 13px;
  background: #d8d0e6;
  transition: background .2s;
}

.switch__track::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .25);
  transition: transform .2s;
}

.switch input:checked + .switch__track { background: var(--purple-600); }
.switch input:checked + .switch__track::after { transform: translateX(18px); }
.switch input:focus-visible + .switch__track { outline: 3px solid var(--purple-300); outline-offset: 2px; }
.switch input:disabled + .switch__track { opacity: .45; }
.switch input:disabled ~ .switch__label { color: var(--ink-soft); }

.layer__desc { margin: 8px 0 0 56px; font-size: .86rem; color: var(--ink-soft); }

.hotspots { margin: 12px 0 0 56px; }
.hotspots h3 { font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--purple-700); }

.hotspots ol { margin: 6px 0 0; padding: 0; list-style: none; counter-reset: hot; }

.hotspots li {
  counter-increment: hot;
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 5px 0;
  font-size: .88rem;
  border-bottom: 1px dashed var(--line);
}

.hotspots li::before { content: counter(hot); font-weight: 700; color: var(--purple-500); width: 1ch; }
.hotspots li span { flex: 1; }
.hotspots li small { display: block; color: var(--ink-soft); font-size: .76rem; }
.hotspots li b { font-variant-numeric: tabular-nums; color: var(--purple-800); }

.hotspots button {
  all: unset;
  cursor: pointer;
  color: var(--ink);
}

.hotspots button:hover, .hotspots button:focus-visible { color: var(--purple-600); text-decoration: underline; }

.busy-status { margin: 10px 0 0 56px; font-size: .88rem; }
.busy-status:empty { display: none; }

.busy-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 700;
  background: var(--purple-50);
  border: 1px solid var(--line);
}

.busy-pill::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--dot, #999); }
.busy-pill[data-level="quiet"] { --dot: #2bb673; }
.busy-pill[data-level="moderate"] { --dot: #f2c230; }
.busy-pill[data-level="busy"] { --dot: #f2852f; }
.busy-pill[data-level="very busy"] { --dot: #e23d4b; }

.busy-status p { margin: 6px 0 0; color: var(--ink-soft); }

.notice {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--purple-50);
  border: 1px solid var(--line);
  color: var(--ink-soft);
}

/* ---------- Map legend and tooltips ---------- */

.legend {
  position: absolute;
  left: 12px;
  bottom: 24px;
  z-index: 500;
  padding: 10px 12px;
  background: rgba(255, 255, 255, .95);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  font-size: .76rem;
  max-width: 220px;
}

.legend strong { display: block; margin-bottom: 6px; color: var(--purple-900); font-size: .8rem; }
.legend__row { display: flex; align-items: center; gap: 8px; line-height: 1.6; font-variant-numeric: tabular-nums; }
.legend__swatch { width: 18px; height: 12px; border-radius: 3px; border: 1px solid rgba(45, 10, 82, .15); }

.leaflet-container { font-family: var(--font); background: #ece7f3; }
.basemap { filter: grayscale(1) brightness(1.06) contrast(.92); }

.leaflet-tooltip.nb-tip {
  border: 0;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  padding: 8px 10px;
  color: var(--ink);
}

.nb-tip b { color: var(--purple-800); }
.nb-tip small { color: var(--ink-soft); }

/* ---------- E-bike explorer ---------- */

.card--bikes { flex: none; }

.bike-tiles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.bike-tiles__loading { grid-column: 1 / -1; color: var(--ink-soft); font-size: .9rem; }

.bike-tile {
  all: unset;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  overflow: hidden;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s, transform .15s;
}

.bike-tile:hover { border-color: var(--purple-300); box-shadow: var(--shadow); transform: translateY(-1px); }
.bike-tile:focus-visible { outline: 3px solid var(--purple-300); outline-offset: 2px; }
.bike-tile[aria-pressed="true"] { border-color: var(--purple-600); box-shadow: 0 0 0 2px var(--purple-600); }

.bike-tile__img {
  aspect-ratio: 4 / 3;
  background: linear-gradient(160deg, #fff, var(--purple-50));
  display: grid;
  place-items: center;
  padding: 6px;
}

.bike-tile__img img, .bike-detail__img img { width: 100%; height: 100%; object-fit: contain; }

.bike-tile__text { padding: 8px 10px 10px; }
.bike-tile__brand { display: block; font-size: .7rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--purple-600); }
.bike-tile__model { display: block; font-size: .86rem; font-weight: 650; line-height: 1.25; }
.bike-tile__price { display: block; margin-top: 2px; font-size: .8rem; color: var(--ink-soft); }

.bike-detail {
  margin-bottom: 16px;
  padding: 16px;
  border-radius: var(--radius-sm);
  background: linear-gradient(160deg, var(--purple-50), #fff 60%);
  border: 1px solid var(--line);
  outline: none;
  animation: rise .25s ease-out;
}

@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.bike-detail__head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.bike-detail__brand { font-size: .74rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--purple-600); }
.bike-detail h3 { font-size: 1.15rem; color: var(--purple-950); }

.bike-detail__close {
  all: unset;
  cursor: pointer;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--ink-soft);
  font-size: 1.2rem;
}

.bike-detail__close:hover, .bike-detail__close:focus-visible { background: var(--purple-100); color: var(--purple-800); }

.bike-detail__img { aspect-ratio: 16 / 10; margin: 10px 0; background: #fff; border-radius: var(--radius-sm); padding: 8px; }

.bike-detail__price { font-size: 1.3rem; font-weight: 800; color: var(--purple-800); }
.bike-detail__price small { font-size: .78rem; font-weight: 500; color: var(--ink-soft); }

.specs { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 12px 0; font-size: .88rem; }
.specs dt { color: var(--ink-soft); }
.specs dd { margin: 0; font-weight: 600; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0 12px; padding: 0; list-style: none; }
.chips li { padding: 4px 10px; border-radius: 999px; background: var(--purple-100); color: var(--purple-800); font-size: .78rem; font-weight: 600; }
.chips--empty li { background: #f1eef5; color: var(--ink-soft); }

.bike-detail h4 { margin: 4px 0 0; font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--purple-700); }
.bike-detail__note { margin: 0 0 10px; font-size: .82rem; color: var(--ink-soft); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--purple-600), var(--purple-500));
  color: #fff;
  font-weight: 650;
  font-size: .88rem;
  text-decoration: none;
}

.btn:hover { color: #fff; filter: brightness(1.08); }

.bike-detail__checked { display: block; margin-top: 10px; font-size: .75rem; color: var(--ink-soft); }

/* ---------- Tips and footer ---------- */

.tips { padding: 12px 20px 8px; max-width: 1400px; margin: 0 auto; }
.tips h2 { font-size: clamp(1.3rem, 2.4vw, 1.7rem); color: var(--purple-900); margin-bottom: 16px; }

.tips__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }

.tip {
  position: relative;
  padding: 20px;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.tip__num {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--purple-700), var(--purple-500));
  color: #fff;
  font-weight: 800;
  margin-bottom: 10px;
}

.tip h3 { font-size: 1rem; color: var(--purple-950); margin-bottom: 6px; }
.tip p { margin: 0; font-size: .9rem; color: var(--ink-soft); }

.footer {
  margin-top: 28px;
  padding: 24px 20px 32px;
  background: var(--purple-950);
  color: rgba(255, 255, 255, .75);
  font-size: .82rem;
}

.footer p { max-width: 1100px; margin: 0 auto 8px; }
.footer a { color: var(--purple-300); }
.footer strong { color: #fff; }

/* ---------- Responsive ---------- */

@media (max-width: 1100px) {
  :root { --side-w: 340px; }
}

@media (max-width: 860px) {
  :root { --banner-h: 200px; }

  .app {
    grid-template-columns: 1fr;
    height: auto;
    padding: 14px;
    gap: 14px;
  }

  .map-pane { height: 62vh; height: 62svh; min-height: 360px; }
  .side { overflow: visible; padding-right: 0; gap: 14px; }
  .bike-tiles { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .tips { padding: 8px 14px; }
}

@media (max-width: 560px) {
  .banner { padding: 76px 16px 20px; min-height: 0; background-position: 62% 50%; }
  .banner__logo { top: 14px; right: 14px; padding: 7px 12px; }
  .banner__logo img { width: 96px; }
  .layer__desc, .hotspots, .busy-status { margin-left: 0; }
  .legend { bottom: 18px; max-width: 170px; font-size: .7rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}