:root {
  --orange: #ff5a13;
  --orange-soft: #ff7a40;
  --ink: #0b0b0b;
  --ink-2: #121212;
  --panel: #171717;
  --line: #2b2b2b;
  --muted: #a8a8a8;
  --paper: #f2f1ed;
  --white: #fff;
  --green: #58d68d;
  --yellow: #ffc857;
  --red: #ff685f;
  --radius: 22px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overflow-x: hidden;
}
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }

.ambient { position: fixed; pointer-events: none; z-index: -1; filter: blur(3px); }
.ambient-one { width: 520px; height: 520px; top: 60px; right: -260px; background: radial-gradient(circle, rgba(255,90,19,.15), transparent 68%); }
.ambient-two { width: 520px; height: 520px; top: 680px; left: -360px; background: radial-gradient(circle, rgba(255,90,19,.09), transparent 70%); }

.site-header {
  width: min(1180px, calc(100% - 40px));
  height: 90px;
  margin: 14px auto 0;
  padding: 0 18px 0 12px;
  position: sticky;
  top: 12px;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(13,13,13,.83);
  border: 1px solid rgba(255,255,255,.11);
  border-radius: 16px;
  backdrop-filter: blur(18px);
  box-shadow: 0 14px 50px rgba(0,0,0,.28);
}
.brand { display: flex; align-items: center; gap: 15px; }
.brand img { width: 68px; height: 68px; object-fit: cover; border-radius: 50%; }
.brand span { display: grid; line-height: 1; letter-spacing: .12em; }
.brand strong { font-size: 18px; }
.brand small { color: var(--muted); font-size: 11px; margin-top: 7px; }
nav { display: flex; align-items: center; gap: 30px; font-size: 15px; font-weight: 650; }
nav a { color: #c9c9c9; transition: color .2s ease; }
nav a:hover { color: var(--white); }
.nav-cta { padding: 13px 17px; color: white; border: 1px solid #424242; border-radius: 10px; }
.menu-button { display: none; border: 0; background: none; padding: 8px; }
.menu-button span { display: block; width: 23px; height: 2px; margin: 5px; background: white; }

main { display: block; }
.hero {
  width: min(1180px, calc(100% - 40px));
  min-height: 640px;
  margin: 0 auto;
  padding: 92px 0 86px;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  align-items: center;
  gap: 72px;
}
.eyebrow { margin: 0 0 20px; color: #bdbdbd; font-size: 11px; font-weight: 800; letter-spacing: .19em; }
.eyebrow span { display: inline-block; width: 26px; height: 2px; margin: 0 9px 3px 0; background: var(--orange); }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: "Arial Narrow", Impact, sans-serif; letter-spacing: -.035em; text-transform: uppercase; }
h1 { max-width: 720px; margin-bottom: 24px; font-size: clamp(48px, 6vw, 82px); line-height: .96; font-weight: 850; }
h1 em { color: var(--orange); font-style: normal; }
.hero-lead { max-width: 620px; margin-bottom: 33px; color: #bdbdbd; font-size: 18px; line-height: 1.6; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.button {
  min-height: 52px;
  padding: 0 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  border: 1px solid transparent;
  border-radius: 11px;
  cursor: pointer;
  font-weight: 800;
  font-size: 13px;
  letter-spacing: .02em;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--orange); color: white; box-shadow: 0 14px 32px rgba(255,90,19,.18); }
.button-primary:hover { background: var(--orange-soft); }
.button-ghost { border-color: #3c3c3c; background: #141414; color: #ddd; }
.button.full { width: 100%; }
.trust-row { margin-top: 48px; display: flex; align-items: center; gap: 22px; color: #9a9a9a; font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.trust-row span { display: flex; align-items: center; gap: 7px; }
.trust-row b { color: white; font-size: 18px; letter-spacing: -.03em; }
.trust-row i { width: 1px; height: 25px; background: #353535; }

.hero-panel {
  min-height: 485px;
  padding: 24px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(145deg, #1a1a1a, #101010);
  border: 1px solid #2c2c2c;
  border-radius: 26px;
  box-shadow: var(--shadow);
}
.hero-panel::after { content: ""; position: absolute; inset: auto -100px -150px auto; width: 320px; height: 320px; border: 1px solid rgba(255,90,19,.15); border-radius: 50%; }
.panel-top { display: flex; align-items: center; gap: 8px; color: #bdbdbd; font-size: 9px; font-weight: 800; letter-spacing: .13em; }
.panel-top small { margin-left: auto; color: #696969; font-size: 8px; }
.status-dot { width: 7px; height: 7px; background: var(--green); border-radius: 50%; box-shadow: 0 0 14px rgba(88,214,141,.7); }
.gauge { width: 204px; height: 204px; margin: 22px auto; padding: 15px; display: grid; place-items: center; border-radius: 50%; background: conic-gradient(from 225deg, var(--orange) 0 58%, #343434 58% 75%, transparent 75%); transform: rotate(0deg); }
.gauge::before { content: ""; position: absolute; width: 190px; height: 190px; background: #131313; border-radius: 50%; }
.gauge-center { z-index: 1; display: grid; text-align: center; }
.gauge-center strong { font-size: 31px; letter-spacing: -.04em; }
.gauge-center span { margin-top: 4px; color: #777; font-size: 9px; font-weight: 800; letter-spacing: .2em; }
.preview-list { display: grid; gap: 8px; }
.preview-list > div { min-height: 55px; padding: 10px 13px; display: flex; align-items: center; gap: 12px; background: #191919; border: 1px solid #292929; border-radius: 12px; }
.preview-list > div > span { width: 29px; height: 29px; display: grid; place-items: center; border-radius: 50%; font-size: 12px; }
.preview-list p { margin: 0; font-size: 12px; }
.preview-list strong { display: block; margin-top: 4px; color: #747474; font-size: 8px; letter-spacing: .11em; }
.check { background: rgba(255,90,19,.13); color: var(--orange); }
.clock { background: rgba(255,200,87,.12); color: var(--yellow); }
.eye { background: rgba(255,255,255,.08); color: #cfcfcf; }
.panel-note { margin: 13px 0 0; color: #666; font-size: 9px; text-align: center; }

.tools-section { padding: 92px max(20px, calc((100% - 1180px)/2)) 110px; color: var(--ink); background: var(--paper); }
.section-heading { margin-bottom: 44px; display: grid; grid-template-columns: 1.4fr .6fr; gap: 100px; align-items: end; }
.section-heading .eyebrow { color: #656565; }
.section-heading h2, .quote-intro h2 { max-width: 750px; margin: 0; font-size: clamp(38px, 5vw, 60px); line-height: 1; }
.section-heading > p { margin: 0 0 3px; color: #5d5d5d; line-height: 1.6; font-size: 14px; }
.tool-tabs { display: flex; gap: 0; border-bottom: 1px solid #cccac3; }
.tab { padding: 18px 28px; border: 0; border-bottom: 3px solid transparent; background: transparent; color: #777; cursor: pointer; font-weight: 750; }
.tab span { margin-right: 10px; color: #aaa; font-size: 10px; }
.tab.is-active { border-bottom-color: var(--orange); color: #111; }
.tab.is-active span { color: var(--orange); }
.tool-panel { display: none; grid-template-columns: .92fr 1.08fr; min-height: 520px; margin-top: 28px; background: white; border: 1px solid #d9d8d2; border-radius: var(--radius); overflow: hidden; box-shadow: 0 18px 60px rgba(0,0,0,.08); }
.tool-panel.is-active { display: grid; }
.calculator-form { padding: 34px; border-right: 1px solid #e3e2dc; }
.field-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
label { display: grid; gap: 8px; }
label > span, legend { color: #4e4e4e; font-size: 10px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
input, select, textarea { width: 100%; color: #121212; background: #f8f8f6; border: 1px solid #d9d8d2; border-radius: 9px; outline: none; transition: border-color .15s ease, box-shadow .15s ease; }
input, select { height: 48px; padding: 0 13px; }
textarea { padding: 13px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(255,90,19,.1); }
.wide-field { grid-column: 1 / -1; }
.input-suffix { position: relative; }
.input-suffix input { padding-right: 42px; }
.input-suffix > span { position: absolute; top: 50%; right: 13px; transform: translateY(-50%); color: #999; font-size: 10px; font-weight: 800; text-transform: uppercase; }
fieldset { margin: 26px 0; padding: 0; border: 0; }
legend { margin-bottom: 12px; }
.symptom-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 9px; }
.symptom-grid label { min-height: 45px; padding: 0 12px; display: flex; align-items: center; gap: 9px; border: 1px solid #d9d8d2; border-radius: 9px; cursor: pointer; }
.symptom-grid label:has(input:checked) { border-color: var(--orange); background: rgba(255,90,19,.05); }
.symptom-grid input { width: 16px; height: 16px; accent-color: var(--orange); }
.symptom-grid label span { color: #3c3c3c; font-size: 11px; letter-spacing: 0; text-transform: none; }

.results { padding: 34px; background: #111; color: white; }
.results.empty { display: grid; place-items: center; text-align: center; }
.result-placeholder { max-width: 290px; }
.result-placeholder > span { width: 56px; height: 56px; margin: 0 auto 18px; display: grid; place-items: center; color: var(--orange); border: 1px solid #3a3a3a; border-radius: 50%; font-size: 22px; }
.result-placeholder h3 { margin-bottom: 8px; font-size: 18px; }
.result-placeholder p { color: #777; font-size: 12px; line-height: 1.6; }
.result-summary { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; padding-bottom: 20px; border-bottom: 1px solid #2d2d2d; }
.result-summary small { color: #777; font-size: 9px; font-weight: 800; letter-spacing: .13em; }
.result-summary h3 { margin: 6px 0 0; font-size: 25px; }
.result-score { width: 62px; height: 62px; display: grid; place-items: center; color: var(--orange); border: 2px solid var(--orange); border-radius: 50%; font-weight: 850; }
.result-items { display: grid; gap: 10px; margin: 20px 0; }
.result-card { padding: 14px; display: grid; grid-template-columns: 10px 1fr auto; gap: 12px; align-items: start; background: #191919; border: 1px solid #2c2c2c; border-radius: 11px; }
.priority-dot { width: 8px; height: 8px; margin-top: 5px; border-radius: 50%; }
.priority-high { background: var(--red); box-shadow: 0 0 10px rgba(255,104,95,.4); }
.priority-medium { background: var(--yellow); }
.priority-low { background: var(--green); }
.result-card h4 { margin: 0 0 4px; font-size: 13px; }
.result-card p { margin: 0; color: #888; font-size: 10px; line-height: 1.45; }
.result-card em { padding: 5px 7px; color: #aaa; background: #232323; border-radius: 6px; font-size: 8px; font-style: normal; font-weight: 800; letter-spacing: .06em; white-space: nowrap; }
.result-actions { display: flex; gap: 8px; }
.result-actions .button { flex: 1; min-height: 44px; padding: 0 12px; font-size: 11px; }
.results-note { margin: 14px 0 0; color: #666; font-size: 9px; line-height: 1.5; }

#simulator-panel { grid-template-columns: .65fr 1.35fr; }
.simulator-controls { padding: 42px 34px; background: #141414; color: white; }
.range-copy p { margin: 0 0 5px; color: #777; font-size: 11px; text-transform: uppercase; letter-spacing: .1em; }
.range-copy output { color: white; font-family: "Arial Narrow", Impact, sans-serif; font-size: 44px; font-weight: 850; text-transform: uppercase; }
input[type="range"] { height: 4px; margin: 45px 0 6px; padding: 0; border: 0; border-radius: 10px; accent-color: var(--orange); }
.range-labels { display: flex; justify-content: space-between; color: #696969; font-size: 9px; text-transform: uppercase; }
.fuel-select { margin-top: 70px; }
.fuel-select span { color: #888; }
.fuel-select select { color: white; background: #1e1e1e; border-color: #333; }
.revision-result { padding: 38px; color: #111; }
.revision-heading { display: flex; justify-content: space-between; gap: 20px; align-items: start; }
.revision-heading small { color: var(--orange); font-size: 9px; font-weight: 850; letter-spacing: .13em; }
.revision-heading h3 { margin: 5px 0 0; font-size: 27px; }
.revision-count { min-width: 64px; padding: 9px; text-align: center; border: 1px solid #ddd; border-radius: 10px; }
.revision-count strong, .revision-count span { display: block; }
.revision-count strong { font-size: 20px; }
.revision-count span { color: #888; font-size: 8px; text-transform: uppercase; }
.revision-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 26px 0; }
.revision-item { padding: 14px; border: 1px solid #deddd8; border-radius: 10px; }
.revision-item span { width: 26px; height: 26px; margin-bottom: 12px; display: grid; place-items: center; color: var(--orange); background: #fff2ec; border-radius: 7px; font-weight: 900; }
.revision-item h4 { margin: 0 0 4px; font-size: 12px; }
.revision-item p { margin: 0; color: #777; font-size: 9px; line-height: 1.45; }
.revision-warning { padding: 12px 14px; color: #5e4a30; background: #fff7e7; border: 1px solid #f2dfb7; border-radius: 9px; font-size: 10px; line-height: 1.5; }

.quote-section { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 110px 0; display: grid; grid-template-columns: .85fr 1.15fr; gap: 100px; align-items: center; }
.quote-intro h2 { margin-bottom: 26px; color: white; }
.quote-intro > p:not(.eyebrow) { max-width: 480px; color: #9b9b9b; line-height: 1.7; }
.contact-card { margin-top: 40px; padding: 16px; display: flex; align-items: center; gap: 14px; border: 1px solid #2f2f2f; border-radius: 13px; background: #131313; }
.contact-icon { width: 42px; height: 42px; display: grid; place-items: center; color: white; background: var(--orange); border-radius: 10px; }
.contact-card div { display: grid; gap: 4px; }
.contact-card small { color: var(--orange); font-size: 8px; font-weight: 800; letter-spacing: .12em; }
.contact-card strong { font-size: 12px; }
.contact-card div span { color: #777; font-size: 9px; }
.quote-form { padding: 34px; color: #111; background: var(--paper); border-radius: var(--radius); box-shadow: var(--shadow); }
.form-title { margin-bottom: 26px; padding-bottom: 17px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid #d4d3cd; }
.form-title span { font-family: "Arial Narrow", Impact, sans-serif; font-size: 24px; font-weight: 850; }
.form-title small { color: #777; font-size: 9px; }
.quote-form .button { margin-top: 22px; }
.privacy-note { margin: 12px 0 0; color: #8a8a8a; font-size: 9px; line-height: 1.4; text-align: center; }

footer { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 26px 0 36px; display: grid; grid-template-columns: 1fr 1.4fr auto; align-items: center; gap: 35px; color: #696969; border-top: 1px solid #262626; font-size: 9px; line-height: 1.5; }
.footer-brand { display: flex; align-items: center; gap: 10px; color: white; }
.footer-brand img { width: 39px; height: 39px; object-fit: cover; border-radius: 50%; }
.footer-brand p { margin: 0; display: grid; gap: 4px; }
.footer-brand strong { font-size: 11px; letter-spacing: .08em; }
.footer-brand span { color: var(--orange); font-size: 7px; letter-spacing: .11em; }
footer > p { margin: 0; }
.toast { position: fixed; left: 50%; bottom: 28px; z-index: 100; padding: 13px 18px; color: white; background: #242424; border: 1px solid #3a3a3a; border-radius: 10px; box-shadow: var(--shadow); opacity: 0; pointer-events: none; transform: translate(-50%, 18px); transition: .25s ease; font-size: 12px; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 900px) {
  .site-header nav { display: none; position: absolute; top: 84px; left: 0; right: 0; padding: 18px; flex-direction: column; align-items: stretch; gap: 8px; background: #131313; border: 1px solid #303030; border-radius: 14px; }
  .site-header nav.is-open { display: flex; }
  .site-header nav a { padding: 12px; }
  .menu-button { display: block; }
  .hero { grid-template-columns: 1fr; padding-top: 70px; gap: 48px; }
  .hero-copy { text-align: center; }
  .hero-copy .eyebrow, .hero-actions, .trust-row { justify-content: center; }
  .hero-lead { margin-left: auto; margin-right: auto; }
  .section-heading, .quote-section { grid-template-columns: 1fr; gap: 35px; }
  .tool-panel.is-active { grid-template-columns: 1fr; }
  .calculator-form { border-right: 0; border-bottom: 1px solid #e3e2dc; }
  #simulator-panel { grid-template-columns: 1fr; }
  .fuel-select { margin-top: 40px; }
  footer { grid-template-columns: 1fr; text-align: center; }
  .footer-brand { justify-content: center; }
}

@media (max-width: 620px) {
  .site-header { width: calc(100% - 24px); }
  .brand span { display: none; }
  .hero, .quote-section, footer { width: calc(100% - 28px); }
  .hero { padding: 64px 0 74px; }
  h1 { font-size: 49px; }
  .hero-lead { font-size: 15px; }
  .hero-actions { flex-direction: column; }
  .trust-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .trust-row span { display: grid; justify-items: center; }
  .trust-row i { display: none; }
  .hero-panel { min-height: auto; padding: 19px; }
  .tools-section { padding: 72px 14px; }
  .section-heading { margin-bottom: 28px; }
  .tool-tabs { overflow-x: auto; }
  .tab { min-width: max-content; padding: 15px 14px; }
  .calculator-form, .results, .simulator-controls, .revision-result, .quote-form { padding: 24px 18px; }
  .field-grid, .revision-list { grid-template-columns: 1fr; }
  .wide-field { grid-column: auto; }
  .symptom-grid { grid-template-columns: 1fr; }
  .result-card { grid-template-columns: 9px 1fr; }
  .result-card em { grid-column: 2; justify-self: start; }
  .result-actions { flex-direction: column; }
  .quote-section { padding: 76px 0; }
  .contact-card { align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}