:root {
  --ink: #1E1F2B;
  --ink-2: #222;
  --paper: #F4F0E6;
  --cream: #FFFDF8;
  --mute: #5E6070;
  --line: rgba(30, 31, 43, 0.12);
  --yellow: #F5C400;
  --sun: #FFD84A;
  --max: 1080px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; overflow-x: clip; }
body {
  font-family: Inter, system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-size: 1.0625rem;
  line-height: 1.62;
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
button, input, textarea, select { font: inherit; color: inherit; }

.skip {
  position: absolute; left: 1rem; top: -4rem;
  background: var(--yellow); color: var(--ink);
  padding: 0.6rem 0.9rem; z-index: 20;
}
.skip:focus { top: 1rem; }

.wrap { width: min(var(--max), calc(100% - 2.6rem)); margin-inline: auto; }
.wrap-wide { width: min(1200px, calc(100% - 2.6rem)); margin-inline: auto; }

.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(30, 31, 43, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: #f6f3ea;
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 4.15rem;
}
.wordmark {
  font-family: Onest, Inter, sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.03em;
  text-decoration: none;
  color: #fff;
}
.wordmark span { color: var(--sun); }
nav {
  display: flex; align-items: center; gap: 0.2rem 1.1rem; flex-wrap: wrap;
}
a.header-cta { display: none; }
.nav-fold { display: none; }
nav a {
  text-decoration: none;
  color: rgba(255, 253, 248, 0.78);
  font-size: 0.9rem;
  letter-spacing: -0.01em;
}
nav a:hover, nav a[aria-current="page"] { color: #fff; }
nav .btn { color: var(--ink); }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 2.85rem; padding: 0.55rem 1.25rem;
  border-radius: 999px; border: 1px solid transparent;
  background: var(--yellow); color: var(--ink);
  text-decoration: none; font-weight: 500;
  letter-spacing: -0.02em; transition: transform 0.25s var(--ease), background 0.2s;
}
.btn:hover { background: var(--sun); }
.btn-ghost {
  background: transparent; color: #fff;
  border-color: rgba(255, 253, 248, 0.28);
}
.btn-ghost:hover { background: rgba(255, 253, 248, 0.08); color: #fff; }
.btn-ink {
  background: var(--ink); color: #fff;
}
.btn-ink:hover { background: #2a2b38; }
.btn-ghost-ink {
  background: transparent; color: var(--ink);
  border-color: rgba(30, 31, 43, 0.22);
}
.btn-ghost-ink:hover { background: rgba(30, 31, 43, 0.05); }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.7rem; }

.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: flex-end;
  color: #fff; background: #12131a;
  overflow: hidden;
}
.hero img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center 62%;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(18, 19, 26, 0.55) 0%, rgba(18, 19, 26, 0.12) 46%, rgba(18, 19, 26, 0.78) 100%),
    linear-gradient(90deg, rgba(18, 19, 26, 0.42) 0%, rgba(18, 19, 26, 0.06) 72%);
}
.hero-copy {
  position: relative; z-index: 1;
  width: min(78rem, calc(100% - 2.6rem));
  margin: 0 auto;
  padding: 8.5rem 0 3.6rem;
}
.headline {
  font-family: Onest, Inter, sans-serif;
  font-weight: 800;
  font-size: clamp(4.4rem, 12.4vw, 11.2rem);
  line-height: 0.84;
  letter-spacing: -0.06em;
  margin: 0 0 2.2rem;
  max-width: 100%;
  text-shadow: 0 18px 50px rgba(0,0,0,0.22);
}
.headline .oil { white-space: nowrap; }
.headline span { color: var(--sun); }

.props-band {
  background: var(--cream);
  border-bottom: 1px solid var(--line);
}
.props {
  display: grid;
  gap: 1.15rem;
  padding: 4.4rem 0 4.6rem;
  max-width: 28rem;
}
.props p {
  margin: 0;
  font-family: Onest, Inter, sans-serif;
  font-weight: 800;
  font-size: clamp(1.85rem, 4.4vw, 2.75rem);
  line-height: 1.08;
  letter-spacing: -0.05em;
  color: var(--ink);
}
.props span { color: var(--yellow); }

/* Home: three benefits, Tankfarm-style word row */
.benefit-band {
  background: var(--paper);
  padding: 2.25rem 0 2.6rem;
}
.benefit-row {
  width: min(1200px, calc(100% - 2rem));
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  align-items: stretch;
}
.benefit {
  margin: 0;
  background: #fff;
  text-align: center;
  box-shadow: 0 1px 2px rgba(30, 31, 43, 0.08);
  padding: 1.15rem 0.9rem 1.05rem;
  border-bottom: 3px solid var(--yellow);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}
.benefit h2 {
  font-family: Onest, Inter, sans-serif;
  font-weight: 700;
  font-size: clamp(1.35rem, 4.6vw, 1.65rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
  color: var(--ink);
  margin: 0;
}
.benefit p {
  margin: 0.7rem auto 0;
  max-width: 28ch;
  font-family: Inter, system-ui, sans-serif;
  font-size: 0.98rem;
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--ink-2);
}
@media (min-width: 760px) {
  .benefit-band { padding: 2.25rem 0 2.75rem; }
  .benefit-row {
    width: min(1200px, 90%);
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
  }
  .benefit {
    padding: 0.85rem 1rem 0.95rem;
  }
  .benefit h2 {
    font-size: clamp(1.15rem, 1.55vw, 1.7rem);
    white-space: nowrap;
  }
}

.prop-icon {
  width: 3.1rem;
  height: 3.1rem;
  display: block;
  overflow: visible;
}
.kit-mon {
  font-family: Onest, Inter, sans-serif;
  font-weight: 500;
  font-size: 1.05rem;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin: 0 0 1.5rem;
  max-width: 32rem;
}
.kit-mon strong { font-weight: 600; }
.on-ink .kit-mon { color: rgba(255, 253, 248, 0.9); }

.page-hero {
  padding: 5.6rem 0 3.4rem;
  background: var(--ink);
  color: #fff;
}
.page-hero h1 {
  font-family: Onest, Inter, sans-serif;
  font-weight: 500;
  font-size: clamp(2.3rem, 5.6vw, 4.1rem);
  line-height: 1.02;
  letter-spacing: -0.042em;
  margin: 0 0 1.15rem;
  max-width: 16ch;
}
.lede { max-width: 36rem; color: rgba(255, 253, 248, 0.74); margin: 0 0 1.1rem; }

.section { padding: 6.4rem 0; }
.section-tight { padding: 4.6rem 0; }
.cream { background: var(--cream); }
.ink { background: var(--ink); color: #fff; }

.kicker {
  font-size: 0.76rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--mute); margin: 0 0 1.15rem; font-weight: 500;
}
.ink .kicker, .on-ink .kicker { color: var(--sun); }

h2 {
  font-family: Onest, Inter, sans-serif;
  font-weight: 500;
  font-size: clamp(1.85rem, 4vw, 2.85rem);
  line-height: 1.06;
  letter-spacing: -0.038em;
  margin: 0 0 1rem;
}
h3 {
  font-family: Onest, Inter, sans-serif;
  font-weight: 500;
  font-size: 1.28rem;
  letter-spacing: -0.03em;
  margin: 0 0 0.45rem;
}
p { margin: 0 0 1rem; color: var(--mute); }
.ink p { color: rgba(255, 253, 248, 0.72); }
.measure { max-width: 38rem; }

.kit-band { max-width: 36rem; }
.kit-band .price,
.price {
  font-family: Onest, Inter, sans-serif;
  font-weight: 500;
  font-size: clamp(3.6rem, 9vw, 5.4rem);
  line-height: 0.9;
  letter-spacing: -0.055em;
  color: var(--ink);
  margin: 0 0 0.55rem;
}
.price span {
  font-size: 0.38em;
  letter-spacing: -0.03em;
  margin-left: 0.08em;
}
.price-sub {
  font-family: Onest, Inter, sans-serif;
  font-weight: 500;
  font-size: 1.12rem;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin: 0 0 0.35rem;
}
.price-list {
  font-size: 0.98rem;
  color: var(--mute);
  margin: 0 0 2rem;
}
.kit-lead {
  max-width: 34rem;
  margin: 0 0 1.5rem;
  color: var(--mute);
}
.fine {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--mute);
  max-width: 28rem;
  margin: 1.35rem 0 0;
}
.on-ink .price { color: #fff; }
.on-ink .price-sub { color: rgba(255, 253, 248, 0.9); }
.on-ink .price-list,
.on-ink .fine { color: rgba(255, 253, 248, 0.55); }

.facts {
  list-style: none;
  margin: 0 0 2rem;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}
.facts li {
  padding-left: 0;
  color: var(--ink);
  font-size: 0.98rem;
  letter-spacing: -0.015em;
  border-top: 1px solid var(--line);
  padding-top: 0.7rem;
}
.facts li:first-child { border-top: 0; padding-top: 0; }

.kit-add {
  font-size: 0.95rem;
  color: var(--mute);
  margin: -0.6rem 0 1.7rem;
  max-width: 32rem;
}

.add-card {
  margin-top: 1.25rem;
  background: #fff;
  border: 1px solid var(--line);
  padding: 1.7rem 1.5rem 1.5rem;
  border-radius: 10px;
  max-width: 34rem;
}
.add-card .kicker { margin-bottom: 0.65rem; }
.add-card h3 { margin-bottom: 0.5rem; }
.add-card p:last-child { margin-bottom: 0; }

.check {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  cursor: pointer;
  padding: 0.9rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}
.check input[type="checkbox"], .check input[type="radio"] {
  width: 1.1rem;
  height: 1.1rem;
  margin: 0.12rem 0 0;
  flex-shrink: 0;
  accent-color: var(--ink);
}

.rule { width: 2.2rem; height: 3px; background: var(--yellow); margin: 0 0 1.2rem; border: 0; }

.split {
  display: grid; gap: 2.4rem; align-items: center;
}
.split img {
  width: 100%; height: min(68vw, 500px);
  object-fit: cover; border-radius: 8px;
}
.split-copy h2 { max-width: 12ch; }
.split-copy p:last-of-type { margin-bottom: 1.4rem; }

.steps { display: grid; gap: 3.2rem; }
.step { max-width: 34rem; }
.step h2 { max-width: 22rem; }
.step p { margin: 0; }

.kit-grid {
  display: grid; gap: 1.15rem;
  margin-top: 2rem;
}
.card {
  background: var(--cream);
  padding: 2rem 1.7rem 1.7rem;
  border: 1px solid var(--line);
  border-radius: 16px;
}
.card p:last-child { margin-bottom: 0; }

.note {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.35rem 1.35rem;
  color: var(--ink-2);
  margin: 0 0 1.6rem;
}
.note strong { font-weight: 600; }

form {
  display: grid; gap: 0.95rem;
  max-width: 34rem;
}
label { display: grid; gap: 0.35rem; font-size: 0.88rem; font-weight: 500; }
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  padding: 0.8rem 0.85rem;
  outline: none;
}
input:focus, textarea:focus, select:focus { border-color: #c9a200; box-shadow: 0 0 0 3px rgba(245, 196, 0, 0.28); }
select { appearance: none; background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='%231E1F2B' d='M1 1l5 5 5-5'/></svg>"); background-repeat: no-repeat; background-position: right 0.85rem center; padding-right: 2.2rem; }

.form-row {
  display: grid;
  gap: 0.95rem;
}
fieldset {
  border: 0;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}
legend {
  font-size: 0.88rem;
  font-weight: 500;
  padding: 0;
  margin: 0 0 0.15rem;
}
.choice-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
}
.choice-row .check { margin: 0; }

.app-band { max-width: 34rem; margin-bottom: 3.6rem; }
.app-band h2 { max-width: 18rem; }
.app-band p { margin: 0; max-width: 34rem; }
.app-band .btn-row { margin-top: 1.4rem; }

.form-ok {
  display: none;
  background: var(--ink);
  color: #fff;
  border-radius: 16px;
  padding: 1.5rem 1.45rem;
  max-width: 34rem;
}
.form-ok p { color: rgba(255, 253, 248, 0.78); margin: 0.4rem 0 0; }
.form-ok[hidden] { display: none; }
.form.is-sent { display: none; }
.form-ok.is-on { display: block; }

.experience {
  font-family: Onest, Inter, sans-serif;
  font-size: 1.2rem;
  line-height: 1.4;
  letter-spacing: -0.025em;
  color: var(--ink-2);
  max-width: 28rem;
  margin: 0 0 1.5rem;
}
.ink .experience { color: rgba(255, 253, 248, 0.9); }

.site-footer {
  padding: 2.2rem 0 2.6rem;
  color: rgba(255, 253, 248, 0.58);
  font-size: 0.88rem;
}
.site-footer .wordmark { display: inline-block; margin-bottom: 0.7rem; }
.site-footer p { margin: 0; }


.page-link {
  color: inherit;
  font-weight: 500;
  text-underline-offset: 0.18em;
}

.app-stage {
  display: grid;
  gap: 2.8rem;
  align-items: start;
}
.app-stage-copy { max-width: 34rem; }
.app-stage-copy .lede { color: var(--mute); }
.app-stage-copy .btn-row { margin-top: 1.6rem; }
.demo-note-pad { margin-top: 0.85rem; }
.demo-flag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--yellow);
  padding: 0.28rem 0.55rem;
  border-radius: 999px;
  margin: 0 0 1rem;
}

.phone-wrap {
  display: flex;
  justify-content: center;
}
.phone {
  width: min(18.6rem, 100%);
  aspect-ratio: 9 / 18.7;
  background: #12131a;
  border-radius: 2.35rem;
  padding: 0.58rem;
  position: relative;
  display: flex;
  box-shadow:
    0 28px 70px -28px rgba(18, 19, 26, 0.62),
    0 0 0 1px rgba(255,255,255,0.07);
}
.phone-notch {
  position: absolute;
  z-index: 4;
  top: 0.78rem;
  left: 50%;
  transform: translateX(-50%);
  width: 5.4rem;
  height: 1.02rem;
  background: #12131a;
  border-radius: 999px;
}
.phone-screen {
  flex: 1;
  min-height: 0;
  height: 100%;
  background: var(--cream);
  border-radius: 1.85rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
}
.phone-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.78rem 0.95rem 0.2rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.demo-lock {
  position: absolute;
  inset: 0;
  z-index: 5;
  background:
    linear-gradient(180deg, rgba(30,31,43,0.08), rgba(30,31,43,0.02) 30%, var(--cream) 48%),
    var(--cream);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.3rem 1.15rem 1.5rem;
}
.demo-lock[hidden] { display: none; }
.demo-lock-kicker {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 0 0 0.45rem;
  font-weight: 500;
}
.demo-lock-title {
  font-family: Onest, Inter, sans-serif;
  font-weight: 600;
  font-size: 1.55rem;
  letter-spacing: -0.04em;
  color: var(--ink);
  margin: 0 0 0.4rem;
  line-height: 1.1;
}
.demo-lock-copy {
  color: var(--mute);
  font-size: 0.88rem;
  margin: 0 0 1.15rem;
}
.demo-lock .btn { width: 100%; }

.demo-screens {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  position: relative;
}
.demo-screen {
  height: 100%;
  padding: 0.15rem 0.95rem 0.6rem;
  display: none;
  overflow: auto;
}
.demo-screen.is-on { display: block; }
.demo-kicker {
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 0 0 0.2rem;
  font-weight: 600;
}
.demo-title {
  font-family: Onest, Inter, sans-serif;
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1;
  color: var(--ink);
  margin: 0 0 0.55rem;
}
.tank-percentage {
  font-size: clamp(4.35rem, 18vw, 6.4rem);
  font-weight: 700;
  letter-spacing: -0.09em;
  line-height: 0.82;
  margin: 0.55rem 0 1rem;
  color: var(--ink);
}
.demo-screen[data-tone="warn"] .tank-percentage { color: #8a6a00; }
.demo-screen[data-tone="bad"] .tank-percentage { color: #b42318; }

.demo-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.22rem 0.5rem;
  border-radius: 999px;
  margin: 0 0 0.7rem;
  background: #e7f6ea;
  color: #1d7a38;
}
.demo-chip::before {
  content: "";
  width: 0.48rem;
  height: 0.48rem;
  border-radius: 50%;
  background: currentColor;
}
.demo-screen[data-tone="warn"] .demo-chip {
  background: #fff3cc;
  color: #8a6a00;
}
.demo-screen[data-tone="bad"] .demo-chip {
  background: #fde3e3;
  color: #b42318;
}
.demo-note {
  font-size: 0.84rem;
  color: var(--mute);
  margin: 0 0 0.75rem;
  line-height: 1.4;
}

.kit-product {
  margin: 1.6rem 0 0;
  max-width: 22rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.25rem;
}
.kit-product img {
  width: 100%;
  height: auto;
  margin-inline: auto;
  object-fit: contain;
}

.sys-light-wrap {
  display: grid;
  place-items: center;
  background: var(--ink);
  border-radius: 12px;
  padding: 1.1rem 0.8rem 1rem;
  margin: 0 0 0.75rem;
}
.sys-light {
  width: 4.4rem;
  height: 4.4rem;
  border-radius: 50%;
  background: #22B34C;
  box-shadow: 0 0 0 8px rgba(34,179,76,0.18), 0 0 28px rgba(34,179,76,0.45);
}
.demo-screen[data-tone="warn"] .sys-light {
  background: #F5C400;
  box-shadow: 0 0 0 8px rgba(245,196,0,0.16), 0 0 28px rgba(245,196,0,0.42);
}
.demo-screen[data-tone="bad"] .sys-light {
  background: #E23B2E;
  box-shadow: 0 0 0 8px rgba(226,59,46,0.18), 0 0 28px rgba(226,59,46,0.45);
}
.sys-caption {
  margin: 0.7rem 0 0;
  font-family: Onest, Inter, sans-serif;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: #fff;
  font-size: 1.05rem;
}

.demo-pills {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.32rem;
  margin: 0 0 0.35rem;
}
.demo-pills button {
  appearance: none;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  min-height: 1.85rem;
  padding: 0.2rem 0.2rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--mute);
  cursor: pointer;
}
.demo-pills button.is-on {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.bill-price {
  font-family: Onest, Inter, sans-serif;
  font-size: 1.7rem;
  font-weight: 600;
  letter-spacing: -0.045em;
  color: var(--ink);
  margin: 0 0 0.15rem;
  line-height: 1;
}
.bill-price span {
  font-size: 0.42em;
  color: var(--mute);
  letter-spacing: -0.02em;
}
.bill-list {
  list-style: none;
  margin: 0.7rem 0 0;
  padding: 0;
}
.bill-list li {
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
  padding: 0.55rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--ink);
}
.bill-list li:first-child { border-top: 0; padding-top: 0; }
.bill-list small {
  display: block;
  color: var(--mute);
  font-size: 0.72rem;
  font-weight: 400;
}
.bill-list strong { font-weight: 600; letter-spacing: -0.02em; }

.mini-usage {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.22rem;
  height: 5.4rem;
  margin: 0 0 0.45rem;
}
.mini-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 0;
  height: 100%;
}
.mini-gal {
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.mini-track {
  flex: 1;
  display: flex;
  align-items: flex-end;
  width: 100%;
  margin: 0.18rem 0;
}
.mini-bar {
  display: block;
  width: 100%;
  height: var(--h);
  min-height: 3px;
  border-radius: 5px 5px 2px 2px;
  background: var(--yellow);
}
.mini-day {
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--mute);
}


.demo-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 0.28rem 0.2rem 0.4rem;
  flex-shrink: 0;
}
.demo-tabs button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--mute);
  display: grid;
  justify-items: center;
  gap: 0.12rem;
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.28rem 0 0.12rem;
  cursor: pointer;
}
.demo-tabs button svg {
  width: 1.2rem;
  height: 1.2rem;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.demo-tabs button.is-on { color: var(--ink); }
.demo-tabs button.is-on svg { stroke: var(--yellow); }

.flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.15rem;
}
.flow li {
  padding-top: 1.05rem;
  border-top: 1px solid var(--line);
}
.flow li:first-child { border-top: 0; padding-top: 0; }
.flow strong {
  display: block;
  font-family: Onest, Inter, sans-serif;
  font-weight: 500;
  font-size: 1.05rem;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin: 0 0 0.2rem;
}
.flow p { margin: 0; font-size: 0.95rem; }

@media (min-width: 860px) {
  .app-stage {
    grid-template-columns: minmax(0, 1fr) 19.2rem;
    gap: 4.2rem;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
}

@media (min-width: 760px) {
  .wrap { width: min(var(--max), calc(100% - 5rem)); }
  .wrap-wide { width: min(1200px, calc(100% - 5rem)); }
  .hero-copy { padding: 10rem 0 4.4rem; }
  nav { gap: 1.35rem; }
  .props {
    padding: 5.4rem 0 5.6rem;
    gap: 1.35rem;
    max-width: 32rem;
  }
  .facts { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.85rem 2.4rem; }
  .facts li:nth-child(2),
  .facts li:nth-child(3) { border-top: 0; padding-top: 0; }
  .split { grid-template-columns: 1.12fr 0.88fr; gap: 4rem; }
  .kit-grid { grid-template-columns: 1fr 1fr; gap: 1.25rem; }
  .page-hero { padding: 7rem 0 4.2rem; }
  .section { padding: 7.2rem 0; }
  .form-row.three { grid-template-columns: 1.5fr 0.7fr 0.9fr; }
  .form-row.two { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 759px) {
  .wrap, .wrap-wide { width: min(var(--max), calc(100% - 2rem)); }
  .hero-copy { width: min(78rem, calc(100% - 2rem)); }
  .header-inner {
    flex-wrap: nowrap;
    gap: 0.55rem;
    min-height: 3.75rem;
  }
  .wordmark { font-size: 1rem; flex: 0 1 auto; min-width: 0; }
  .nav-desk { display: none; }
  a.header-cta {
    display: inline-flex;
    margin-left: auto;
    min-height: 44px;
    padding: 0.4rem 1rem;
    flex: 0 0 auto;
  }
  .nav-fold { display: block; position: relative; flex: 0 0 auto; }
  .nav-fold summary {
    list-style: none;
    cursor: pointer;
    min-height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 0.85rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 253, 248, 0.28);
    color: #fff;
    font-size: 0.92rem;
    font-weight: 500;
    letter-spacing: -0.01em;
  }
  .nav-fold summary::-webkit-details-marker { display: none; }
  .nav-fold nav {
    position: absolute;
    right: 0;
    top: calc(100% + 0.4rem);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    flex-wrap: nowrap;
    gap: 0.15rem;
    min-width: 15.5rem;
    padding: 0.4rem;
    background: #1a1b26;
    border: 1px solid rgba(255, 253, 248, 0.12);
    border-radius: 16px;
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.32);
    z-index: 30;
  }
  .nav-fold nav a {
    min-height: 48px;
    display: flex;
    align-items: center;
    padding: 0 0.9rem;
    border-radius: 10px;
    font-size: 1rem;
    color: #fff;
    white-space: nowrap;
  }
  .nav-fold nav a:hover,
  .nav-fold nav a[aria-current="page"] { background: rgba(255, 253, 248, 0.06); }

  .hero {
    min-height: calc(100svh - 3.75rem);
    min-height: calc(100dvh - 3.75rem);
  }
  .hero-copy { padding: 1.6rem 0 1.8rem; }
  .headline {
    font-size: clamp(4.6rem, 23.5vw, 6rem);
    line-height: 0.86;
    letter-spacing: -0.065em;
    margin: 0 0 1.35rem;
  }
  .headline .oil { display: block; }

  .section { padding: 3.5rem 0; }
  .section-tight { padding: 3rem 0; }
  .page-hero { padding: 3.2rem 0 2.4rem; }
  .page-hero h1 { max-width: 14em; }

  .btn { min-height: 48px; }
  .btn-row {
    flex-direction: column;
    align-items: stretch;
    gap: 0.6rem;
  }
  .btn-row .btn { width: 100%; }
  .btn-row .btn-ghost-ink {
    background: transparent;
  }

  .split img { height: min(62vw, 280px); }
  .app-stage, .split, .phone-wrap, .app-stage-copy, .split-copy { min-width: 0; }
  .phone { width: min(18.6rem, 100%); }
  .demo-pills button {
    min-height: 2.25rem;
    font-size: 0.62rem;
    padding: 0.3rem 0.15rem;
  }
  .choice-row { grid-template-columns: 1fr; }
  .facts li { overflow-wrap: anywhere; }
  .price { overflow-wrap: anywhere; }
}

@media (max-width: 640px) {
  .nav-desk { gap: 0.15rem 0.72rem; }
  .nav-desk a { font-size: 0.9rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}

/* —— Join wizard (Tankfarm Light–style intake + proposal) —— */
.wiz {
  max-width: 36rem;
}
.wiz-progress {
  margin: 0 0 2rem;
}
.wiz-progress-label {
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--mute);
  margin: 0 0 0.45rem;
}
.wiz-progress-track {
  height: 4px;
  background: rgba(30, 31, 43, 0.1);
  border-radius: 999px;
  overflow: hidden;
}
.wiz-progress-bar {
  height: 100%;
  width: 0;
  background: var(--yellow);
  border-radius: 999px;
  transition: width 0.35s var(--ease);
}
.wiz-panel[hidden] { display: none !important; }
.wiz-panel h2 {
  font-size: clamp(1.55rem, 3.4vw, 2.1rem);
  margin: 0 0 0.55rem;
  max-width: 18ch;
}
.wiz-lede {
  color: var(--mute);
  margin: 0 0 1.5rem;
  max-width: 34rem;
}
.wiz-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 0.4rem;
  padding-top: 0.35rem;
}
.wiz-error {
  background: #fdecec;
  color: #8a1f14;
  border: 1px solid rgba(180, 35, 24, 0.2);
  border-radius: 10px;
  padding: 0.75rem 0.95rem;
  font-size: 0.9rem;
  margin: 0 0 1rem;
}
.wiz-error[hidden] { display: none; }

.wiz-proposal {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.6rem 1.45rem 1.5rem;
  margin: 0 0 1.25rem;
}
.wiz-proposal .price {
  font-size: clamp(2.8rem, 7vw, 3.8rem);
  margin: 0 0 0.35rem;
}
.wiz-proposal .price-sub {
  margin: 0 0 1.15rem;
}
.wiz-benefit-list {
  list-style: none;
  margin: 0 0 1.35rem;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}
.wiz-benefit-list li {
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
}
.wiz-benefit-list li:first-child {
  border-top: 0;
  padding-top: 0;
}
.wiz-benefit-list strong {
  display: block;
  font-family: Onest, Inter, sans-serif;
  font-weight: 500;
  font-size: 1.02rem;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin: 0 0 0.15rem;
}
.wiz-benefit-list p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--mute);
}
.wiz-stack {
  list-style: none;
  margin: 0 0 1.4rem;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}
.wiz-stack li {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  font-size: 0.95rem;
  color: var(--ink);
  letter-spacing: -0.015em;
}
.wiz-stack li::before {
  content: "";
  width: 0.55rem;
  height: 0.55rem;
  margin-top: 0.45rem;
  border-radius: 50%;
  background: var(--yellow);
  flex-shrink: 0;
}
.wiz-confirm {
  background: var(--ink);
  color: #fff;
  border-radius: 16px;
  padding: 1.7rem 1.5rem;
  max-width: 36rem;
}
.wiz-confirm h2 {
  color: #fff;
  margin: 0 0 0.55rem;
}
.wiz-confirm p {
  color: rgba(255, 253, 248, 0.78);
  margin: 0 0 0.85rem;
}
.wiz-confirm p:last-child { margin-bottom: 0; }
.wiz-confirm .btn { margin-top: 0.6rem; }
.wiz-terms {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--mute);
  max-width: 34rem;
  margin: 0 0 1.1rem;
}
.wiz-summary {
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  margin: 0 0 1.25rem;
  font-size: 0.9rem;
  color: var(--ink);
}
.wiz-summary dt {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
  font-weight: 500;
  margin: 0.65rem 0 0.15rem;
}
.wiz-summary dt:first-child { margin-top: 0; }
.wiz-summary dd {
  margin: 0;
  letter-spacing: -0.015em;
}

/* —— Street address typeahead (Photon / Nominatim) —— */
.addr-combo { position: relative; }
.addr-suggest {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  z-index: 30;
  margin: 0.15rem 0 0;
  padding: 0.25rem 0;
  list-style: none;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 10px 28px rgba(30, 31, 43, 0.12);
  max-height: 16rem;
  overflow: auto;
}
.addr-suggest[hidden] { display: none; }
.addr-suggest li { margin: 0; }
.addr-opt {
  display: block;
  width: 100%;
  text-align: left;
  font: inherit;
  font-size: 0.92rem;
  line-height: 1.35;
  letter-spacing: -0.015em;
  padding: 0.55rem 0.8rem;
  border: 0;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  border-radius: 0;
}
.addr-opt:hover,
.addr-opt.is-on,
.addr-opt[aria-selected="true"] {
  background: rgba(245, 196, 0, 0.18);
  color: var(--ink);
}
.addr-opt small {
  display: block;
  color: var(--mute);
  font-size: 0.8rem;
  margin-top: 0.1rem;
  letter-spacing: 0;
}
.addr-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: -0.35rem;
}
.addr-tools .btn {
  font-size: 0.82rem;
  padding: 0.45rem 0.75rem;
}
.addr-hint {
  margin: -0.45rem 0 0;
  font-size: 0.8rem;
  color: var(--mute);
  line-height: 1.4;
}

/* Dealer apply / agreement */
.form-wide { max-width: 40rem; }
.form-wide fieldset {
  gap: 0.85rem;
  padding-top: 0.35rem;
  margin-top: 0.55rem;
  border-top: 1px solid var(--line);
}
.form-wide fieldset:first-of-type { border-top: 0; padding-top: 0; margin-top: 0; }
.opt {
  font-weight: 400;
  color: var(--mute);
  font-size: 0.82rem;
}
.hint {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.45;
  color: var(--mute);
}
.draft-banner {
  display: inline-block;
  margin: 0.4rem 0 0;
  padding: 0.65rem 0.9rem;
  border-radius: 8px;
  background: rgba(245, 196, 0, 0.16);
  border: 1px solid rgba(245, 196, 0, 0.35);
  color: rgba(255, 253, 248, 0.92);
  font-size: 0.88rem;
  line-height: 1.45;
  max-width: 36rem;
}
.prose {
  max-width: 40rem;
}
.prose h2 {
  font-size: clamp(1.35rem, 2.8vw, 1.75rem);
  margin: 2.2rem 0 0.75rem;
  max-width: none;
}
.prose h2:first-child { margin-top: 0; }
.prose p { color: var(--mute); }
.prose strong { color: var(--ink); font-weight: 600; }
.site-footer a {
  color: rgba(255, 253, 248, 0.72);
  text-decoration: none;
}
.site-footer a:hover { color: #fff; }

/* Dealer agreement schedules */
.prose .schedule-wrap {
  overflow-x: auto;
  margin: 0 0 1.15rem;
  border: 1px solid rgba(30, 31, 43, 0.12);
  border-radius: 10px;
  background: #fff;
}
.prose table.schedule {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.prose table.schedule caption {
  caption-side: top;
  text-align: left;
  padding: 0.75rem 0.95rem 0.35rem;
  font-weight: 600;
  color: var(--ink);
  font-family: Onest, Inter, system-ui, sans-serif;
  font-size: 0.88rem;
}
.prose table.schedule th,
.prose table.schedule td {
  padding: 0.65rem 0.95rem;
  text-align: left;
  border-top: 1px solid rgba(30, 31, 43, 0.1);
  color: var(--mute);
  vertical-align: top;
}
.prose table.schedule th {
  color: var(--ink);
  font-weight: 600;
  background: rgba(244, 240, 230, 0.65);
  border-top: 0;
}
.prose .sig-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1.4rem;
  margin: 1.2rem 0 0.5rem;
}
.prose .sig-block {
  padding: 1.1rem 1.15rem;
  border: 1px solid rgba(30, 31, 43, 0.14);
  border-radius: 10px;
  background: #fff;
}
.prose .sig-block p {
  margin: 0 0 0.55rem;
  color: var(--mute);
  font-size: 0.92rem;
}
.prose .sig-block p:last-child { margin-bottom: 0; }
.prose .sig-party {
  font-family: Onest, Inter, system-ui, sans-serif;
  font-weight: 700;
  color: var(--ink) !important;
  letter-spacing: 0.04em;
  font-size: 0.8rem !important;
  text-transform: uppercase;
  margin-bottom: 0.9rem !important;
}

.terms-box {
  max-height: 22rem;
  overflow: auto;
  padding: 1rem 1.1rem;
  border: 1px solid rgba(30, 31, 43, 0.14);
  border-radius: 12px;
  background: #fff;
  margin: 0.4rem 0 1rem;
}
.terms-box h3 {
  font-family: Onest, Inter, system-ui, sans-serif;
  font-size: 1rem;
  margin: 1rem 0 0.35rem;
}
.terms-box h3:first-child { margin-top: 0; }
.terms-box p, .terms-box li { color: var(--mute); font-size: 0.95rem; }
.sign-pad {
  width: 100%;
  max-width: 40rem;
  height: 140px;
  background: #fff;
  border: 1px dashed rgba(30, 31, 43, 0.35);
  border-radius: 10px;
  touch-action: none;
  cursor: crosshair;
}
.sign-confirm {
  margin-top: 1.2rem;
  padding: 1.1rem 1.15rem;
  border-radius: 12px;
  background: var(--ink);
  color: #fffdf8;
}
.sign-confirm h2 { color: #fff; margin-top: 0; }
.sign-confirm p { color: rgba(255, 253, 248, 0.82); }
.payload {
  white-space: pre-wrap;
  word-break: break-word;
  background: rgba(255, 253, 248, 0.08);
  color: #fffdf8;
  padding: 0.9rem 1rem;
  border-radius: 8px;
  font-size: 0.78rem;
  line-height: 1.45;
  max-height: 16rem;
  overflow: auto;
}
.version-id {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
}

.portal-embed iframe {
  width: 100%;
  height: 820px;
  border: 0;
  border-radius: 16px;
  background: #fff;
}

/* Homepage photo bands */
.photo-band {
  margin: 0;
  display: grid;
  gap: 0;
}
.photo-band img {
  width: 100%;
  height: min(62vw, 280px);
  object-fit: cover;
}
.photo-band--home img { object-position: center 45%; height: min(70vw, 460px); }
.photo-pair img:first-child { object-position: center 40%; }
.photo-pair img:last-child { object-position: center 30%; }

.cta-band { padding: 0 0 2.4rem; background: var(--paper); }
.cta-band .btn-row { justify-content: center; }
.portal-embed .btn-row { margin-top: 1rem; }

/* Finished footer */
.site-footer { padding: 3rem 0 1.6rem; }
.footer-grid {
  display: grid;
  gap: 1.8rem 2rem;
  padding-bottom: 1.6rem;
}
.footer-brand .wordmark { margin-bottom: 0; }
.site-footer h2 {
  font-family: Inter, system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1.2;
  color: var(--sun);
  margin: 0 0 0.75rem;
}
.footer-col { display: grid; align-content: start; gap: 0.45rem; }
.footer-col a {
  display: inline-block;
  width: fit-content;
  color: rgba(255, 253, 248, 0.82);
  text-decoration: none;
  font-size: 0.95rem;
  min-height: 1.6rem;
}
.footer-col a:hover { color: #fff; }
.footer-legal {
  border-top: 1px solid rgba(255, 253, 248, 0.12);
  padding-top: 1rem;
}
.footer-legal p {
  margin: 0;
  font-size: 0.82rem;
  color: rgba(255, 253, 248, 0.5);
}
@media (min-width: 760px) {
  .footer-grid { grid-template-columns: 1.3fr 1fr 1fr 1fr; align-items: start; }
  .photo-pair { grid-template-columns: 1.15fr 0.85fr; }
  .photo-pair img { height: 380px; }
  .cta-band { padding: 0.2rem 0 3rem; }
}
@media (max-width: 759px) {
  .footer-col a { min-height: 44px; display: flex; align-items: center; }
  .photo-pair img { height: min(62vw, 240px); }
}