:root{
  color-scheme:light;
  --page:#edf5f7;
  --page-2:#f8fbfd;
  --panel:#ffffff;
  --panel-soft:#f4f8fb;
  --panel-blue:#eef6ff;
  --panel-amber:#fff7e8;
  --panel-green:#edf9f2;
  --panel-coral:#fff0ed;
  --ink:#122433;
  --muted:#607385;
  --line:rgba(45,73,90,.14);
  --line-strong:rgba(45,73,90,.24);
  --blue:#2f7eea;
  --blue-deep:#155fc2;
  --amber:#e5a22f;
  --green:#1f9c68;
  --coral:#dc6755;
  --teal:#119b8f;
  --purple:#6d67c8;
  --shadow:0 24px 58px rgba(31,61,82,.14);
  --soft-shadow:0 12px 28px rgba(31,61,82,.08);
  --radius-lg:16px;
  --radius-md:8px;
  --radius-sm:6px;
  --font:"Inter","Aptos","Segoe UI",Arial,sans-serif;
}

*{
  box-sizing:border-box;
}

[hidden]{
  display:none !important;
}

html,
body{
  margin:0;
  min-height:100%;
}

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

body{
  margin:0;
  padding:18px;
  overflow-x:hidden;
  color:var(--ink);
  font-family:var(--font);
  background:
    repeating-linear-gradient(90deg,rgba(18,36,51,.035) 0 1px,transparent 1px 88px),
    repeating-linear-gradient(0deg,rgba(18,36,51,.028) 0 1px,transparent 1px 88px),
    linear-gradient(135deg,#f9fcff 0%,var(--page) 58%,#f7fbf3 100%);
}

body.embed-mode{
  min-height:0;
  padding:0;
  overflow:hidden;
  background:transparent;
}

html.embed-mode{
  min-height:0;
  overflow:hidden;
  background:transparent;
}

html.embed-mode .sf-shell,
body.embed-mode .sf-shell{
  width:100%;
  max-width:none;
  margin:0;
}

button,
input,
select,
output{
  font:inherit;
}

button,
select,
input[type="range"]{
  color:inherit;
}

button,
select{
  min-height:44px;
}

button{
  cursor:pointer;
}

button:focus-visible,
select:focus-visible,
input:focus-visible{
  outline:3px solid rgba(47,126,234,.25);
  outline-offset:2px;
}

.sf-shell{
  width:min(100%,1360px);
  margin:0 auto;
}

.sf-widget{
  position:relative;
  display:grid;
  gap:16px;
  max-width:100%;
  overflow:hidden;
  padding:18px;
  border:1px solid var(--line);
  border-radius:20px;
  background:
    linear-gradient(180deg,rgba(255,255,255,.96),rgba(251,253,255,.9)),
    var(--panel);
  box-shadow:var(--shadow);
}

.sf-widget *{
  min-width:0;
}

.sf-widget::before{
  position:absolute;
  inset:0 0 auto;
  height:6px;
  background:linear-gradient(90deg,var(--blue),var(--green),var(--amber),var(--coral));
  content:"";
}

.sf-hero{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:18px;
  align-items:start;
  padding:18px;
  border:1px solid rgba(45,73,90,.1);
  border-radius:var(--radius-lg);
  background:
    linear-gradient(90deg,rgba(47,126,234,.09),rgba(31,156,104,.06) 48%,rgba(229,162,47,.08)),
    rgba(255,255,255,.82);
}

.sf-hero-copy{
  min-width:0;
}

.sf-eyebrow,
.section-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  width:max-content;
  max-width:100%;
  margin:0;
  padding:7px 10px;
  border:1px solid rgba(47,126,234,.18);
  border-radius:999px;
  background:rgba(255,255,255,.78);
  color:var(--blue-deep);
  font-size:12px;
  font-weight:850;
  letter-spacing:0;
  line-height:1.2;
  text-transform:uppercase;
}

.sf-eyebrow::before,
.section-kicker::before{
  width:8px;
  height:8px;
  flex:0 0 auto;
  border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 0 5px rgba(229,162,47,.14);
  content:"";
}

h1,
h2{
  margin:0;
  letter-spacing:0;
}

h1{
  max-width:760px;
  margin-top:14px;
  font-size:48px;
  font-weight:950;
  line-height:1;
  overflow-wrap:anywhere;
  text-wrap:balance;
}

h2{
  font-size:23px;
  font-weight:920;
  line-height:1.12;
  text-wrap:balance;
}

.visually-hidden{
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

.sf-lede{
  max-width:680px;
  margin:12px 0 0;
  color:#354c60;
  font-size:17px;
  font-weight:720;
  line-height:1.5;
  overflow-wrap:anywhere;
}

.sf-disclaimer{
  display:flex;
  width:fit-content;
  max-width:720px;
  margin:12px 0 0;
  padding:8px 10px;
  border:1px solid rgba(229,162,47,.28);
  border-radius:var(--radius-md);
  background:rgba(255,247,232,.76);
  color:#644914;
  font-size:13px;
  font-weight:760;
  line-height:1.35;
  overflow-wrap:anywhere;
}

.sf-hero-result{
  display:grid;
  gap:8px;
  align-content:start;
  justify-self:end;
  width:max-content;
  max-width:min(100%,320px);
  min-width:220px;
  padding:14px 16px;
  border:1px solid rgba(47,126,234,.18);
  border-radius:var(--radius-md);
  background:
    linear-gradient(180deg,rgba(255,255,255,.96),rgba(238,246,255,.9)),
    var(--panel-blue);
  box-shadow:var(--soft-shadow);
}

.sf-hero-result span,
.vehicle-card span,
.result-card span,
.breakdown-card__type,
.component-label,
.select-row span,
.check-row span{
  color:var(--muted);
  font-size:12px;
  font-weight:850;
  letter-spacing:0;
  line-height:1.25;
  text-transform:uppercase;
}

.sf-hero-result strong{
  color:var(--ink);
  font-size:34px;
  font-weight:950;
  line-height:1;
}

.sf-hero-result small{
  color:#4f6678;
  font-size:14px;
  font-weight:750;
  line-height:1.35;
}

.vehicle-strip{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
}

.vehicle-card,
.result-card,
.control-panel,
.result-panel,
.breakdown-section,
.explanation-box,
.caveat-box,
.breakdown-card{
  min-width:0;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  background:rgba(255,255,255,.86);
  box-shadow:var(--soft-shadow);
}

.vehicle-card{
  display:grid;
  gap:7px;
  padding:14px;
}

.vehicle-card h3{
  margin:0;
  font-size:18px;
  font-weight:930;
  line-height:1.1;
  text-wrap:balance;
}

.vehicle-card p,
.result-card p,
.component-row small,
.section-lede,
.explanation-box p,
.caveat-box li{
  margin:0;
  color:#5b7182;
  font-size:13px;
  font-weight:620;
  line-height:1.45;
  overflow-wrap:anywhere;
}

.section-lede{
  max-width:680px;
  font-size:14px;
  font-weight:680;
}

.vehicle-card--combustion{
  border-color:rgba(220,103,85,.2);
  background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(255,240,237,.78));
}

.vehicle-card--hybrid{
  border-color:rgba(229,162,47,.22);
  background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(255,247,232,.84));
}

.vehicle-card--electric{
  border-color:rgba(31,156,104,.22);
  background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(237,249,242,.82));
}

.sim-grid{
  display:grid;
  grid-template-columns:minmax(300px,.36fr) minmax(0,1fr);
  gap:16px;
  align-items:start;
}

.output-stack{
  display:grid;
  gap:16px;
  min-width:0;
}

.control-panel,
.result-panel,
.breakdown-section,
.explanation-box,
.caveat-box{
  display:grid;
  gap:14px;
  padding:16px;
}

.section-head{
  display:grid;
  gap:9px;
  min-width:0;
}

.result-head{
  grid-template-columns:minmax(0,1fr) auto;
  align-items:end;
}

.control-list,
.advanced-panel{
  display:grid;
  gap:12px;
}

.advanced-panel{
  padding-top:2px;
}

.scenario-presets{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:8px;
}

.scenario-preset{
  display:grid;
  gap:5px;
  min-height:58px;
  min-width:0;
  padding:10px;
  border:1px solid rgba(45,73,90,.12);
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.86);
  color:#52687a;
  text-align:left;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.68);
}

.scenario-preset:hover{
  border-color:rgba(47,126,234,.28);
  background:var(--panel-blue);
}

.scenario-preset.is-active{
  border-color:rgba(47,126,234,.36);
  background:
    linear-gradient(180deg,rgba(238,246,255,.95),rgba(255,255,255,.84)),
    var(--panel-blue);
  color:var(--blue-deep);
  box-shadow:inset 0 0 0 1px rgba(47,126,234,.08),0 0 0 3px rgba(47,126,234,.1);
}

.scenario-preset strong{
  color:currentColor;
  font-size:12px;
  font-weight:900;
  line-height:1.1;
}

.scenario-preset span{
  color:#607385;
  font-size:11px;
  font-weight:720;
  line-height:1.25;
}

.control-row{
  display:grid;
  gap:7px;
  min-width:0;
}

.unit-settings{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:10px;
  padding:10px;
  border:1px solid rgba(47,126,234,.14);
  border-radius:var(--radius-sm);
  background:
    linear-gradient(180deg,rgba(238,246,255,.9),rgba(255,255,255,.76)),
    var(--panel-blue);
}

.advanced-subhead{
  display:grid;
  gap:5px;
  padding:11px;
  border:1px solid rgba(31,156,104,.18);
  border-radius:var(--radius-sm);
  background:
    linear-gradient(180deg,rgba(237,249,242,.88),rgba(255,255,255,.74)),
    var(--panel-green);
}

.advanced-subhead strong{
  color:#166447;
  font-size:13px;
  font-weight:900;
  line-height:1.2;
}

.advanced-subhead p{
  margin:0;
  color:#557064;
  font-size:12px;
  font-weight:660;
  line-height:1.4;
}

.control-top{
  display:flex;
  justify-content:space-between;
  gap:12px;
  min-width:0;
  color:#20394c;
  font-size:13px;
  font-weight:830;
  line-height:1.25;
}

.control-top span{
  min-width:0;
}

.control-top output{
  flex:0 0 auto;
  color:var(--blue-deep);
  font-size:13px;
  font-weight:920;
}

input[type="range"]{
  width:100%;
  height:8px;
  margin:0;
  appearance:none;
  border:1px solid rgba(47,126,234,.12);
  border-radius:999px;
  background:
    linear-gradient(90deg,var(--blue) 0 var(--fill,50%),rgba(96,115,133,.18) var(--fill,50%) 100%);
  outline:none;
}

input[type="range"]::-webkit-slider-thumb{
  width:20px;
  height:20px;
  appearance:none;
  border:3px solid var(--blue);
  border-radius:50%;
  background:#fff;
  box-shadow:0 4px 12px rgba(47,126,234,.25);
}

input[type="range"]::-moz-range-thumb{
  width:16px;
  height:16px;
  border:3px solid var(--blue);
  border-radius:50%;
  background:#fff;
  box-shadow:0 4px 12px rgba(47,126,234,.25);
}

input[type="range"]:disabled{
  cursor:not-allowed;
  filter:saturate(.35);
}

.select-row,
.check-row{
  display:grid;
  gap:7px;
  min-width:0;
}

.select-row select{
  width:100%;
  min-height:42px;
  padding:0 12px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:#fff;
  color:var(--ink);
  font-weight:760;
}

.check-row{
  grid-template-columns:auto minmax(0,1fr);
  align-items:center;
  padding:10px;
  border:1px solid rgba(45,73,90,.1);
  border-radius:var(--radius-sm);
  background:var(--panel-soft);
}

.check-row input{
  width:18px;
  height:18px;
  accent-color:var(--blue);
}

.legend{
  display:flex;
  flex-wrap:wrap;
  justify-content:flex-end;
  gap:8px;
  color:#4f6678;
  font-size:12px;
  font-weight:780;
}

.legend span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:28px;
  padding:0 8px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#fff;
}

.legend-swatch{
  width:10px;
  height:10px;
  flex:0 0 auto;
  border-radius:50%;
}

.swatch-combustion{
  background:var(--coral);
}

.swatch-hybrid{
  background:var(--amber);
}

.swatch-electric{
  background:var(--green);
}

.chart-frame{
  position:relative;
  min-height:410px;
  overflow:hidden;
  border:1px solid rgba(45,73,90,.12);
  border-radius:var(--radius-md);
  background:
    repeating-linear-gradient(90deg,rgba(18,36,51,.035) 0 1px,transparent 1px 72px),
    repeating-linear-gradient(0deg,rgba(18,36,51,.028) 0 1px,transparent 1px 72px),
    linear-gradient(180deg,#fbfdff,#eff5f8);
}

#costChart{
  display:block;
  width:100%;
  height:410px;
}

.result-cards{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:10px;
}

.result-card{
  display:grid;
  gap:7px;
  padding:12px;
  box-shadow:none;
}

.result-card strong{
  color:var(--ink);
  font-size:22px;
  font-weight:950;
  line-height:1;
  overflow-wrap:anywhere;
}

.result-card--warning{
  border-color:rgba(229,162,47,.24);
  background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(255,247,232,.82));
}

.breakdown-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
}

.breakdown-head{
  grid-template-columns:minmax(0,1fr) auto;
  align-items:start;
}

.breakdown-head > div{
  display:grid;
  gap:9px;
}

.year-chip{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:38px;
  padding:0 12px;
  border:1px solid rgba(47,126,234,.18);
  border-radius:999px;
  background:var(--panel-blue);
  color:var(--blue-deep);
  font-size:13px;
  font-weight:900;
  white-space:nowrap;
}

.breakdown-card{
  display:grid;
  gap:10px;
  padding:13px;
  box-shadow:none;
}

.breakdown-card__head{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:10px;
}

.breakdown-card__head strong{
  display:block;
  margin-top:4px;
  font-size:20px;
  font-weight:930;
  line-height:1;
}

.breakdown-card__total{
  min-width:max-content;
  padding:7px 9px;
  border-radius:var(--radius-sm);
  background:var(--panel-soft);
  color:var(--ink);
  font-size:14px;
  font-weight:930;
}

.component-list{
  display:grid;
  gap:8px;
}

.component-row{
  display:grid;
  gap:5px;
}

.component-top{
  display:flex;
  justify-content:space-between;
  gap:8px;
  min-width:0;
}

.component-label{
  color:#3e5568;
}

.component-value{
  color:var(--ink);
  font-size:12px;
  font-weight:900;
  white-space:nowrap;
}

.component-bar{
  height:8px;
  overflow:hidden;
  border-radius:999px;
  background:rgba(96,115,133,.14);
}

.component-bar span{
  display:block;
  width:var(--bar,0%);
  max-width:100%;
  height:100%;
  border-radius:inherit;
  background:var(--bar-color,var(--blue));
}

.component-row--credit .component-value{
  color:var(--green);
}

.component-row--credit .component-bar span{
  background:var(--green);
}

.explanation-section{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  align-items:stretch;
}

.explanation-box p{
  max-width:920px;
  font-size:15px;
}

.explanation-box,
.caveat-box{
  align-content:start;
  height:100%;
}

.caveat-box ul{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:8px;
  margin:0;
  padding:0;
  list-style:none;
}

.caveat-box li{
  min-height:44px;
  padding:9px 10px;
  border:1px solid rgba(45,73,90,.1);
  border-radius:var(--radius-sm);
  background:var(--panel-soft);
  font-size:12px;
  font-weight:720;
}

@media (max-width:1120px){
  .sf-hero,
  .sim-grid,
  .explanation-section{
    grid-template-columns:1fr;
  }

  .sf-hero-result{
    justify-self:start;
    width:fit-content;
    max-width:100%;
  }

  .result-head{
    grid-template-columns:1fr;
    align-items:start;
  }

  .legend{
    justify-content:flex-start;
  }

  .result-cards{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

@media (max-width:840px){
  body{
    padding:10px;
  }

  .sf-widget{
    padding:12px;
    border-radius:16px;
  }

  .sf-hero{
    padding:14px;
  }

  h1{
    font-size:38px;
  }

  .vehicle-strip,
  .breakdown-grid{
    grid-template-columns:1fr;
  }

  .control-panel,
  .result-panel,
  .breakdown-section,
  .explanation-box,
  .caveat-box{
    padding:14px;
  }

  .chart-frame{
    min-height:360px;
  }

  #costChart{
    height:360px;
  }
}

@media (max-width:560px){
  body{
    padding:6px;
  }

  .sf-widget{
    gap:12px;
    padding:8px;
    border-radius:14px;
  }

  .sf-hero{
    padding:12px;
  }

  h1{
    font-size:30px;
    line-height:1.05;
  }

  h2{
    font-size:20px;
  }

  .sf-lede{
    font-size:15px;
  }

  .sf-hero-result strong{
    font-size:28px;
  }

  .result-cards{
    grid-template-columns:1fr;
  }

  .control-top{
    align-items:flex-start;
    flex-direction:column;
    gap:5px;
  }

  .control-top output{
    flex:auto;
  }

  .chart-frame{
    min-height:320px;
  }

  #costChart{
    height:320px;
  }

  .legend{
    display:grid;
    grid-template-columns:1fr;
    width:100%;
  }

  .legend span{
    justify-content:center;
  }

  .breakdown-card__head{
    display:grid;
  }

  .breakdown-card__total{
    justify-self:start;
  }

  .breakdown-head{
    grid-template-columns:1fr;
  }

  .year-chip{
    justify-self:start;
  }

  .unit-settings{
    grid-template-columns:1fr;
  }

  .scenario-presets{
    grid-template-columns:1fr;
  }

  .caveat-box ul{
    grid-template-columns:1fr;
  }
}

@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    scroll-behavior:auto !important;
    transition-duration:.01ms !important;
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
  }
}