:root {
  --orange: #ff982e;
  --orange-light: #ffb45f;
  --ink: #121313;
  --ink-soft: #222524;
  --paper: #f2f1ed;
  --white: #fffdf8;
  --muted: #6f726f;
  --line: #d7d6d0;
  --max: 1180px;
  --shadow: 0 24px 70px rgb(0 0 0 / 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  display: block;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.shell {
  width: min(calc(100% - 48px), var(--max));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  color: var(--ink);
  background: var(--orange);
  font-weight: 800;
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: absolute;
  z-index: 20;
  top: 0;
  right: 0;
  left: 0;
  border-top: 6px solid var(--orange);
}

.header-inner {
  display: flex;
  min-height: 100px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  color: var(--white);
  text-decoration: none;
}

.brand img {
  width: 66px;
  height: 66px;
  object-fit: contain;
}

.brand span {
  display: grid;
  line-height: 1.08;
}

.brand strong {
  font-size: 16px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.brand small {
  margin-top: 7px;
  color: rgb(255 255 255 / 0.58);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

nav {
  display: flex;
  margin-left: auto;
  gap: 32px;
}

nav a {
  position: relative;
  color: var(--white);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

nav a::after {
  position: absolute;
  right: 0;
  bottom: -9px;
  left: 0;
  height: 2px;
  background: var(--orange);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

nav a:hover::after,
nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 23px;
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
  transition:
    transform 180ms ease,
    background 180ms ease,
    color 180ms ease,
    border-color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.button-primary {
  color: var(--ink);
  background: var(--orange);
}

.button-primary:hover {
  background: var(--orange-light);
}

.button-dark,
.button-ghost {
  color: var(--white);
  border-color: rgb(255 255 255 / 0.28);
  background: rgb(255 255 255 / 0.08);
  backdrop-filter: blur(12px);
}

.button-dark:hover,
.button-ghost:hover {
  color: var(--ink);
  border-color: var(--white);
  background: var(--white);
}

.button-small {
  min-height: 43px;
  padding-inline: 16px;
  font-size: 12px;
}

.hero {
  position: relative;
  min-height: 850px;
  overflow: hidden;
  color: var(--white);
  background: var(--ink);
}

.hero-image,
.hero-overlay,
.hero-lines {
  position: absolute;
  inset: 0;
}

.hero-image {
  background-image: url("assets/gas-cylinders-background.jpg");
  background-position: center;
  background-size: cover;
  filter: saturate(0.65) contrast(1.08);
  transform: scale(1.01);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgb(12 13 13 / 0.98) 0%, rgb(12 13 13 / 0.9) 37%, rgb(12 13 13 / 0.22) 73%, rgb(12 13 13 / 0.12) 100%),
    linear-gradient(0deg, rgb(12 13 13 / 0.8) 0%, transparent 42%);
}

.hero-lines {
  opacity: 0.09;
  background-image: linear-gradient(90deg, transparent 49.8%, #fff 50%, transparent 50.2%);
  background-size: calc(100% / 6) 100%;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  min-height: 720px;
  align-items: center;
  padding-top: 102px;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: 80px;
}

.hero-copy {
  max-width: 680px;
}

.eyebrow,
.section-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 24px;
  color: var(--orange);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 6px rgb(255 152 46 / 0.14);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  font-weight: 900;
  letter-spacing: -0.035em;
  line-height: 0.93;
  text-transform: uppercase;
}

h1 {
  max-width: 750px;
  margin-bottom: 28px;
  font-size: clamp(76px, 9vw, 136px);
}

h1 em {
  color: var(--orange);
  font-style: normal;
}

.hero-lead {
  max-width: 620px;
  margin-bottom: 34px;
  color: rgb(255 255 255 / 0.74);
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.45;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.delivery-card {
  position: relative;
  align-self: end;
  margin-bottom: 58px;
  padding: 30px;
  border: 1px solid rgb(255 255 255 / 0.2);
  background: rgb(13 14 14 / 0.76);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.delivery-card::before {
  position: absolute;
  top: -1px;
  left: -1px;
  width: 82px;
  height: 4px;
  background: var(--orange);
  content: "";
}

.delivery-icon {
  width: 52px;
  height: 52px;
  margin-bottom: 32px;
  color: var(--orange);
}

.delivery-icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.delivery-card p {
  margin-bottom: 3px;
  color: rgb(255 255 255 / 0.54);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.delivery-card strong {
  display: block;
  margin-bottom: 14px;
  font-size: 25px;
  line-height: 1.15;
}

.delivery-card > span {
  display: block;
  color: rgb(255 255 255 / 0.58);
  font-size: 14px;
}

.hero-proof {
  position: relative;
  z-index: 3;
  border-top: 1px solid rgb(255 255 255 / 0.14);
  background: rgb(9 10 10 / 0.76);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.proof-grid > div {
  display: grid;
  min-height: 130px;
  align-items: center;
  padding: 25px 32px;
  border-right: 1px solid rgb(255 255 255 / 0.14);
  grid-template-columns: 42px 1fr;
  gap: 16px;
}

.proof-grid > div:first-child {
  padding-left: 0;
}

.proof-grid > div:last-child {
  padding-right: 0;
  border-right: 0;
}

.proof-grid span {
  color: var(--orange);
  font-family: Impact, sans-serif;
  font-size: 24px;
}

.proof-grid p {
  margin: 0;
  color: rgb(255 255 255 / 0.52);
  font-size: 13px;
}

.proof-grid strong {
  display: block;
  margin-bottom: 3px;
  color: var(--white);
  font-size: 14px;
}

.process-section {
  padding: 108px 0;
}

.process-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 10vw;
}

.process-grid h2,
.pricing-heading h2,
.cta-grid h2 {
  margin-bottom: 0;
  font-size: clamp(51px, 6vw, 86px);
}

.process-copy {
  align-self: end;
  padding-bottom: 7px;
}

.process-copy p {
  margin-bottom: 28px;
  color: #4e514f;
  font-size: 19px;
  line-height: 1.7;
}

.process-copy a,
.pricing-footnote a,
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 5px;
  border-bottom: 2px solid var(--orange);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.pricing-section {
  padding: 108px 0 118px;
  background: var(--white);
}

.pricing-heading {
  display: grid;
  align-items: end;
  margin-bottom: 38px;
  grid-template-columns: 1fr auto;
  gap: 50px;
}

.price-switcher {
  display: inline-flex;
  padding: 5px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.price-switcher button {
  min-height: 46px;
  padding: 0 20px;
  border: 0;
  color: #585b59;
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.price-switcher button.is-active {
  color: var(--ink);
  background: var(--orange);
  box-shadow: 0 4px 14px rgb(0 0 0 / 0.1);
}

.price-mode-note {
  margin-bottom: 25px;
  color: var(--muted);
  font-size: 14px;
}

.price-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.gas-card {
  position: relative;
  padding: 26px;
  border: 1px solid var(--line);
  background: #fff;
  overflow: hidden;
  transition:
    border-color 180ms ease,
    transform 180ms ease,
    box-shadow 180ms ease;
}

.gas-card:hover {
  z-index: 2;
  border-color: var(--orange);
  box-shadow: 0 20px 40px rgb(0 0 0 / 0.08);
  transform: translateY(-3px);
}

.gas-card-top {
  display: grid;
  min-height: 64px;
  align-items: center;
  margin-bottom: 24px;
  grid-template-columns: 58px 1fr auto;
  gap: 16px;
}

.gas-code {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid var(--ink);
  font-family: Impact, Haettenschweiler, sans-serif;
  font-size: 20px;
  letter-spacing: 0.02em;
}

.gas-card h3 {
  margin-bottom: 3px;
  font-size: 19px;
  line-height: 1.2;
}

.gas-card-top p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.use-tag {
  padding: 5px 8px;
  color: #925114;
  background: #fff0de;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.size-prices {
  display: grid;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  grid-template-columns: repeat(4, 1fr);
}

.size-prices > div {
  min-width: 0;
  padding: 11px 9px 10px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: center;
}

.size-prices span {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.size-prices strong {
  display: block;
  font-size: clamp(17px, 2vw, 21px);
  font-variant-numeric: tabular-nums;
}

.size-prices .unavailable {
  color: #aaa;
  background: repeating-linear-gradient(-45deg, transparent, transparent 5px, rgb(0 0 0 / 0.025) 5px, rgb(0 0 0 / 0.025) 10px);
}

.price-pop {
  animation: price-pop 240ms ease-out;
}

@keyframes price-pop {
  0% { opacity: 0.25; transform: translateY(3px); }
  100% { opacity: 1; transform: translateY(0); }
}

.pricing-footnote {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  margin-top: 30px;
  padding-top: 25px;
  border-top: 1px solid var(--line);
}

.pricing-footnote p {
  max-width: 700px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.pricing-footnote a {
  flex: 0 0 auto;
}

.cta-section {
  position: relative;
  padding: 88px 0;
  color: var(--white);
  background: var(--ink);
  overflow: hidden;
}

.cta-section::after {
  position: absolute;
  top: -190px;
  right: -170px;
  width: 520px;
  height: 520px;
  border: 1px solid rgb(255 255 255 / 0.1);
  content: "";
  transform: rotate(45deg);
}

.cta-grid {
  position: relative;
  z-index: 2;
  display: grid;
  align-items: center;
  grid-template-columns: 160px 1fr auto;
  gap: 50px;
}

.cta-mark {
  display: grid;
  width: 150px;
  height: 150px;
  place-items: center;
  border: 1px solid rgb(255 255 255 / 0.18);
  background: var(--orange);
  transform: rotate(45deg);
}

.cta-mark img {
  width: 75px;
  height: 110px;
  object-fit: contain;
  transform: rotate(-45deg);
}

.cta-actions {
  display: grid;
  justify-items: start;
  gap: 22px;
}

.cta-actions .text-link {
  border-color: rgb(255 255 255 / 0.35);
}

footer {
  padding: 36px 0;
  color: rgb(255 255 255 / 0.55);
  background: #080909;
}

.footer-inner {
  display: grid;
  align-items: center;
  grid-template-columns: 1fr auto auto;
  gap: 40px;
}

.brand-footer img {
  width: 50px;
  height: 50px;
}

.footer-inner p,
.footer-inner > small {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mobile-call {
  display: none;
}

:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 4px;
}

@media (max-width: 900px) {
  nav {
    display: none;
  }

  .hero {
    min-height: auto;
  }

  .hero-inner {
    min-height: 700px;
    grid-template-columns: 1fr;
  }

  .delivery-card {
    display: none;
  }

  .proof-grid > div {
    padding-inline: 18px;
  }

  .process-grid {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .process-copy {
    max-width: 620px;
  }

  .pricing-heading {
    align-items: start;
    grid-template-columns: 1fr;
  }

  .price-switcher {
    justify-self: start;
  }

  .cta-grid {
    grid-template-columns: 120px 1fr;
  }

  .cta-mark {
    width: 110px;
    height: 110px;
  }

  .cta-mark img {
    width: 58px;
    height: 85px;
  }

  .cta-actions {
    grid-column: 2;
  }

  .footer-inner {
    grid-template-columns: 1fr auto;
  }

  .footer-inner p {
    display: none;
  }
}

@media (max-width: 680px) {
  body {
    padding-bottom: 70px;
  }

  .shell {
    width: min(calc(100% - 32px), var(--max));
  }

  .header-inner {
    min-height: 84px;
  }

  .brand img {
    width: 54px;
    height: 54px;
  }

  .brand strong {
    font-size: 14px;
  }

  .brand small {
    font-size: 9px;
  }

  .header-inner > .button {
    display: none;
  }

  .hero-image {
    background-position: 63% center;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgb(12 13 13 / 0.97), rgb(12 13 13 / 0.57)),
      linear-gradient(0deg, rgb(12 13 13 / 0.9), transparent 58%);
  }

  .hero-inner {
    min-height: 680px;
    padding-top: 94px;
  }

  .eyebrow {
    font-size: 10px;
    letter-spacing: 0.1em;
  }

  h1 {
    font-size: clamp(52px, 15vw, 66px);
  }

  h1 em {
    white-space: nowrap;
  }

  .hero-lead {
    font-size: 18px;
  }

  .hero-actions .button {
    width: 100%;
  }

  .proof-grid {
    padding-block: 16px;
    grid-template-columns: 1fr;
  }

  .proof-grid > div,
  .proof-grid > div:first-child,
  .proof-grid > div:last-child {
    min-height: 90px;
    padding: 18px 0;
    border-right: 0;
    border-bottom: 1px solid rgb(255 255 255 / 0.14);
  }

  .proof-grid > div:last-child {
    border-bottom: 0;
  }

  .process-section,
  .pricing-section {
    padding: 82px 0;
  }

  .process-grid h2,
  .cta-grid h2 {
    font-size: clamp(48px, 15vw, 68px);
  }

  .pricing-heading h2 {
    font-size: clamp(42px, 12.5vw, 54px);
  }

  .process-copy p {
    font-size: 17px;
  }

  .pricing-heading {
    margin-bottom: 28px;
    gap: 30px;
  }

  .price-switcher {
    width: 100%;
  }

  .price-switcher button {
    flex: 1;
  }

  .price-grid {
    grid-template-columns: 1fr;
  }

  .gas-card {
    padding: 20px;
  }

  .pricing-footnote {
    align-items: flex-start;
    flex-direction: column;
  }

  .cta-section {
    padding: 80px 0;
  }

  .cta-grid {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .cta-mark {
    margin: 18px 0 22px 25px;
  }

  .cta-actions {
    grid-column: 1;
  }

  .footer-inner {
    align-items: start;
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .mobile-call {
    position: fixed;
    z-index: 50;
    right: 0;
    bottom: 0;
    left: 0;
    display: flex;
    min-height: 70px;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--ink);
    background: var(--orange);
    box-shadow: 0 -8px 28px rgb(0 0 0 / 0.24);
    font-size: 14px;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-decoration: none;
    text-transform: uppercase;
  }

  .mobile-call svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}