/* =========================================================
   EV Range Calculator — Stylesheet
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&family=DM+Mono:wght@400;500&display=swap');

/* ── Root / Design tokens ─────────────────────────────── */
.evrc-wrap {
  --evrc-bg:         #0f172a;
  --evrc-surface:    #1e293b;
  --evrc-border:     #334155;
  --evrc-text:       #f1f5f9;
  --evrc-muted:      #94a3b8;
  --evrc-accent:     #22d3ee;
  --evrc-accent2:    #6366f1;
  --evrc-green:      #22c55e;
  --evrc-amber:      #f59e0b;
  --evrc-red:        #ef4444;
  --evrc-radius:     14px;
  --evrc-font:       'DM Sans', system-ui, -apple-system, sans-serif;
  --evrc-mono:       'DM Mono', 'Courier New', monospace;

  background: var(--evrc-bg);
  color: var(--evrc-text);
  font-family: var(--evrc-font);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0,0,0,.55);
  max-width: 960px;
  margin: 40px auto;
  border: 1px solid var(--evrc-border);
}

/* ── Header ──────────────────────────────────────────── */
.evrc-header {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 28px 36px;
  background: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
  position: relative;
  overflow: hidden;
}
.evrc-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent 0,
    transparent 18px,
    rgba(255,255,255,.04) 18px,
    rgba(255,255,255,.04) 19px
  );
}
.evrc-header-icon {
  width: 56px;
  height: 56px;
  background: rgba(255,255,255,.15);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,.2);
}
.evrc-header-icon svg { width: 32px; height: 32px; color: #fff; }
.evrc-header-text h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #fff;
}
.evrc-header-text p {
  margin: 2px 0 0;
  font-size: 13px;
  color: rgba(255,255,255,.75);
  font-weight: 400;
}

/* ── Body layout ─────────────────────────────────────── */
.evrc-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}
@media (max-width: 700px) {
  .evrc-body { grid-template-columns: 1fr; }
}

/* ── Inputs panel ────────────────────────────────────── */
.evrc-inputs {
  padding: 28px 28px 28px 36px;
  border-right: 1px solid var(--evrc-border);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Field */
.evrc-field { display: flex; flex-direction: column; gap: 8px; }
.evrc-field label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--evrc-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.evrc-unit-label { color: var(--evrc-accent); font-weight: 400; }
.evrc-label-icon { width: 14px; height: 14px; }

/* Select & Input */
.evrc-field select,
.evrc-input-wrap input {
  width: 100%;
  box-sizing: border-box;
  background: var(--evrc-surface);
  border: 1px solid var(--evrc-border);
  border-radius: 10px;
  color: var(--evrc-text);
  font-family: var(--evrc-mono);
  font-size: 14px;
  padding: 10px 14px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  appearance: none;
  -webkit-appearance: none;
}
.evrc-field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2394a3b8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  cursor: pointer;
}
.evrc-field select:focus,
.evrc-input-wrap input:focus {
  border-color: var(--evrc-accent);
  box-shadow: 0 0 0 3px rgba(34,211,238,.15);
}
.evrc-field select optgroup {
  background: #0f172a;
  color: #22d3ee;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .05em;
  padding: 6px 0 2px;
}
.evrc-field select option {
  background: #1e293b;
  color: #f1f5f9;
  font-size: 13px;
  padding: 6px 10px;
}
.evrc-field select option:hover,
.evrc-field select option:focus,
.evrc-field select option:checked {
  background: #22d3ee !important;
  color: #0f172a !important;
}
/* Fallback for browsers that don't support dark select styling */
@supports not (color-scheme: dark) {
  .evrc-field select,
  .evrc-field select option,
  .evrc-field select optgroup {
    background: #1e293b;
    color: #f1f5f9;
  }
}

/* Two-column row */
.evrc-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* Sliders */
.evrc-slider-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}
.evrc-slider-wrap input[type="range"] {
  -webkit-appearance: none;
  flex: 1;
  height: 6px;
  background: var(--evrc-border);
  border-radius: 99px;
  outline: none;
  cursor: pointer;
  transition: background .2s;
}
.evrc-slider-wrap input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--evrc-accent);
  border: 3px solid var(--evrc-bg);
  box-shadow: 0 2px 8px rgba(34,211,238,.4);
  cursor: pointer;
}
.evrc-slider-val {
  font-family: var(--evrc-mono);
  font-size: 13px;
  color: var(--evrc-accent);
  min-width: 52px;
  text-align: right;
  white-space: nowrap;
}

/* Temp bar */
.evrc-temp-bar {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--evrc-muted);
  margin-top: -4px;
  padding: 0 2px;
}

/* Divider */
.evrc-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--evrc-muted);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
}
.evrc-divider::before, .evrc-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--evrc-border);
}

/* Toggles */
.evrc-toggles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.evrc-toggle-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--evrc-muted);
}
.evrc-toggle {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 22px;
  flex-shrink: 0;
}
.evrc-toggle input { opacity: 0; width: 0; height: 0; }
.evrc-toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--evrc-border);
  border-radius: 99px;
  cursor: pointer;
  transition: background .25s;
}
.evrc-toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 3px;
  top: 3px;
  background: #fff;
  border-radius: 50%;
  transition: transform .25s;
}
.evrc-toggle input:checked + .evrc-toggle-slider { background: var(--evrc-accent); }
.evrc-toggle input:checked + .evrc-toggle-slider::before { transform: translateX(16px); }

/* Unit toggle */
.evrc-unit-toggle {
  display: flex;
  background: var(--evrc-surface);
  border: 1px solid var(--evrc-border);
  border-radius: 10px;
  padding: 4px;
  gap: 4px;
  width: fit-content;
}
.evrc-unit-btn {
  padding: 7px 20px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--evrc-muted);
  font-family: var(--evrc-font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s, color .2s;
}
.evrc-unit-btn--active {
  background: var(--evrc-accent);
  color: var(--evrc-bg);
}

/* ── Results panel ───────────────────────────────────── */
.evrc-results {
  padding: 28px 36px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Dial card */
.evrc-range-card {
  background: var(--evrc-surface);
  border: 1px solid var(--evrc-border);
  border-radius: var(--evrc-radius);
  padding: 20px;
  text-align: center;
}
.evrc-range-dial { position: relative; display: inline-block; }
.evrc-dial-svg { width: 200px; height: 120px; display: block; }
.evrc-range-value {
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.evrc-range-num {
  font-family: var(--evrc-mono);
  font-size: 36px;
  font-weight: 700;
  color: var(--evrc-text);
  line-height: 1;
  transition: color .3s;
}
.evrc-range-unit {
  font-size: 14px;
  color: var(--evrc-muted);
  font-weight: 400;
}
.evrc-range-label {
  margin: 10px 0 0;
  font-size: 12px;
  color: var(--evrc-muted);
  text-transform: uppercase;
  letter-spacing: .1em;
  font-weight: 600;
}

/* Stats grid */
.evrc-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.evrc-stat {
  background: var(--evrc-surface);
  border: 1px solid var(--evrc-border);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.evrc-stat-icon { font-size: 18px; line-height: 1; }
.evrc-stat-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--evrc-muted);
}
.evrc-stat-val {
  font-family: var(--evrc-mono);
  font-size: 14px;
  color: var(--evrc-text);
  font-weight: 500;
  transition: color .3s;
}
.evrc-stat-sub {
  font-size: 10px;
  color: var(--evrc-muted);
  line-height: 1.4;
  margin-top: 1px;
}
.evrc-stat-divider {
  display: block;
  height: 1px;
  background: var(--evrc-border);
  margin: 6px 0 4px;
}
.evrc-stat-label2 {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--evrc-muted);
}
.evrc-stat-val2 {
  font-family: var(--evrc-mono);
  font-size: 13px;
  color: #22d3ee;
  font-weight: 600;
}
/* Cost card spans full width on its own row */
.evrc-stat--cost {
  grid-column: 1 / -1;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 12px;
}
.evrc-stat--cost .evrc-stat-icon { flex: 0 0 auto; }
.evrc-stat--cost .evrc-stat-label { flex: 1 1 100%; }
.evrc-stat--cost .evrc-stat-val   { font-size: 18px; font-weight: 700; color: #22c55e; }
.evrc-stat--cost .evrc-stat-sub   { flex: 1 1 auto; color: var(--evrc-muted); }
.evrc-stat--cost .evrc-stat-divider { flex: 1 1 100%; }
.evrc-stat--cost .evrc-stat-label2  { flex: 0 0 auto; }
.evrc-stat--cost .evrc-stat-val2    { margin-left: auto; }

/* Loss card: colour coded */
.evrc-stat--loss .evrc-stat-val { transition: color .3s; }

/* Factor breakdown */
.evrc-breakdown {
  background: var(--evrc-surface);
  border: 1px solid var(--evrc-border);
  border-radius: var(--evrc-radius);
  padding: 16px;
}
.evrc-breakdown h3 {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--evrc-muted);
}
.evrc-factor {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  font-size: 12px;
}
.evrc-factor-name {
  flex: 0 0 110px;
  color: var(--evrc-muted);
}
.evrc-factor-bar-wrap {
  flex: 1;
  height: 6px;
  background: var(--evrc-border);
  border-radius: 99px;
  overflow: hidden;
}
.evrc-factor-bar {
  height: 100%;
  border-radius: 99px;
  transition: width .5s cubic-bezier(.4,0,.2,1);
}
.evrc-factor-val {
  font-family: var(--evrc-mono);
  font-size: 11px;
  min-width: 40px;
  text-align: right;
  color: var(--evrc-text);
}

/* Tip */
.evrc-tip {
  background: rgba(34,211,238,.08);
  border: 1px solid rgba(34,211,238,.25);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 12.5px;
  color: var(--evrc-accent);
  display: flex;
  gap: 8px;
  align-items: flex-start;
  line-height: 1.5;
}
.evrc-tip-icon { flex-shrink: 0; }

/* ── Footer ──────────────────────────────────────────── */
.evrc-footer {
  text-align: center;
  padding: 14px;
  font-size: 11px;
  color: var(--evrc-muted);
  border-top: 1px solid var(--evrc-border);
  background: var(--evrc-surface);
  opacity: .7;
}

/* ── Model Badge ─────────────────────────────────────── */
.evrc-model-badge {
  background: linear-gradient(135deg, rgba(34,211,238,.08), rgba(99,102,241,.08));
  border: 1px solid rgba(34,211,238,.25);
  border-radius: 12px;
  padding: 12px 14px;
  animation: evrc-drop-in .2s ease;
}
.evrc-badge-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 5px;
}
.evrc-badge-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--evrc-text);
}
.evrc-badge-cat {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
}
.evrc-badge-specs {
  display: flex;
  gap: 6px;
  font-size: 11px;
  color: var(--evrc-muted);
  margin-bottom: 6px;
  flex-wrap: wrap;
}
.evrc-badge-sep { opacity: .4; }
.evrc-badge-traits { display: flex; flex-wrap: wrap; gap: 5px; }
.evrc-trait-chip {
  font-size: 10.5px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 99px;
}

/* ── SoH bar label ────────────────────────────────────── */
.evrc-soh-bar {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  margin-top: -4px;
  padding: 0 2px;
}

/* ── Temp unit toggle ────────────────────────────────── */
.evrc-temp-unit-toggle {
  display: inline-flex;
  background: var(--evrc-surface);
  border: 1px solid var(--evrc-border);
  border-radius: 6px;
  padding: 2px;
  gap: 2px;
  margin-left: auto;
}
.evrc-tempunit-btn {
  padding: 2px 8px;
  border-radius: 4px;
  border: none;
  background: transparent;
  color: var(--evrc-muted);
  font-family: var(--evrc-font);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s, color .2s;
}
.evrc-tempunit-btn--active {
  background: var(--evrc-accent);
  color: var(--evrc-bg);
}

/* ── Quick speed buttons ─────────────────────────────── */
.evrc-quick-speeds {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 6px;
}
.evrc-qs-label { font-size: 11px; color: var(--evrc-muted); }
.evrc-qs-btn {
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--evrc-border);
  background: var(--evrc-surface);
  color: var(--evrc-muted);
  font-family: var(--evrc-font);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color .2s, color .2s, background .2s;
}
.evrc-qs-btn:hover {
  border-color: var(--evrc-accent);
  color: var(--evrc-accent);
  background: rgba(34,211,238,.08);
}

/* ── WLTP Comparison ─────────────────────────────────── */
.evrc-wltp-compare {
  background: var(--evrc-surface);
  border: 1px solid var(--evrc-border);
  border-radius: var(--evrc-radius);
  padding: 14px 16px;
}
.evrc-wltp-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.evrc-wltp-row:last-of-type { margin-bottom: 6px; }
.evrc-wltp-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--evrc-muted);
  min-width: 72px;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.evrc-wltp-bar-wrap {
  flex: 1;
  height: 8px;
  background: var(--evrc-border);
  border-radius: 99px;
  overflow: hidden;
}
.evrc-wltp-bar {
  height: 100%;
  border-radius: 99px;
  transition: width .5s cubic-bezier(.4,0,.2,1);
}
.evrc-wltp-bar--rated { background: #a78bfa; }
.evrc-wltp-bar--real  { background: #22d3ee; }
.evrc-wltp-val {
  font-family: var(--evrc-mono);
  font-size: 12px;
  min-width: 55px;
  text-align: right;
  color: var(--evrc-text);
}
.evrc-wltp-note {
  margin: 4px 0 0;
  font-size: 11.5px;
  line-height: 1.5;
}

/* ── Custom Dropdown ─────────────────────────────────── */
.evrc-custom-select-wrap { position: relative; }

.evrc-dropdown { position: relative; }

.evrc-dropdown-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--evrc-surface);
  border: 1px solid var(--evrc-border);
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
  transition: border-color .2s, box-shadow .2s;
  user-select: none;
}
.evrc-dropdown-trigger:hover,
.evrc-dropdown--open .evrc-dropdown-trigger {
  border-color: var(--evrc-accent);
  box-shadow: 0 0 0 3px rgba(34,211,238,.15);
}
.evrc-dropdown-label {
  font-family: var(--evrc-mono);
  font-size: 13.5px;
  color: var(--evrc-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
}
.evrc-dropdown-arrow {
  width: 12px;
  height: 8px;
  color: var(--evrc-muted);
  flex-shrink: 0;
  margin-left: 10px;
  transition: transform .25s;
}
.evrc-dropdown--open .evrc-dropdown-arrow { transform: rotate(180deg); }

/* Panel */
.evrc-dropdown-panel {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  z-index: 9999;
  background: #1a2840;
  border: 1px solid var(--evrc-accent);
  border-radius: 12px;
  box-shadow: 0 16px 48px rgba(0,0,0,.6);
  overflow: hidden;
  max-height: 360px;
  display: none;
  flex-direction: column;
}
.evrc-dropdown--open .evrc-dropdown-panel {
  display: flex !important;
  animation: evrc-drop-in .18s ease;
}
@keyframes evrc-drop-in {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Search */
.evrc-dropdown-search-wrap {
  padding: 10px 10px 6px;
  border-bottom: 1px solid var(--evrc-border);
  flex-shrink: 0;
}
.evrc-dropdown-search {
  width: 100%;
  box-sizing: border-box;
  background: #0f1e30;
  border: 1px solid var(--evrc-border);
  border-radius: 8px;
  color: var(--evrc-text);
  font-family: var(--evrc-font);
  font-size: 13px;
  padding: 8px 12px;
  outline: none;
  transition: border-color .2s;
}
.evrc-dropdown-search:focus { border-color: var(--evrc-accent); }
.evrc-dropdown-search::placeholder { color: var(--evrc-muted); }

/* List */
.evrc-dropdown-list {
  overflow-y: auto;
  flex: 1;
  padding: 6px 0 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--evrc-border) transparent;
}
.evrc-dropdown-list::-webkit-scrollbar { width: 5px; }
.evrc-dropdown-list::-webkit-scrollbar-thumb { background: var(--evrc-border); border-radius: 99px; }

/* Group header */
.evrc-dd-group {
  padding: 8px 14px 3px;
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--evrc-accent);
  pointer-events: none;
  border-top: 1px solid rgba(255,255,255,.05);
  margin-top: 4px;
}
.evrc-dd-group:first-child { border-top: none; margin-top: 0; }

/* Option item */
.evrc-dd-option {
  padding: 9px 16px 9px 22px;
  font-size: 13px;
  color: #cbd5e1;
  cursor: pointer;
  transition: background .12s, color .12s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.evrc-dd-option:hover {
  background: rgba(34,211,238,.12);
  color: #fff;
}
.evrc-dd-option--selected {
  background: rgba(34,211,238,.18);
  color: var(--evrc-accent);
  font-weight: 600;
}
.evrc-dd-option--hidden { display: none; }
.evrc-dd-group--hidden  { display: none; }

/* ── Utility: dial animation ─────────────────────────── */
.evrc-dial-arc   { transition: stroke-dashoffset .5s cubic-bezier(.4,0,.2,1); }
.evrc-dial-needle { transition: transform .5s cubic-bezier(.4,0,.2,1); transform-origin: 100px 100px; }