:root {
  font-family: "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
  color: #112b25;
  background: #f3f5ee;
}

* { box-sizing: border-box; }
body { margin: 0; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { cursor: pointer; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid #497c58; outline-offset: 3px; }
.skip-link { position: absolute; left: 12px; top: -60px; z-index: 20; padding: 10px; background: white; }
.skip-link:focus { top: 12px; }
.wrap { width: min(100% - 72px, 1180px); margin-inline: auto; }
.site-shell { min-height: 100svh; display: flex; flex-direction: column; background: radial-gradient(circle at 73% 35%, #e7f1e2 0, transparent 38%); }

.topbar { min-height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 20px; font-weight: 800; letter-spacing: -.07em; white-space: nowrap; }
.brand > span:last-child > span { font-weight: 500; }
.brand-mark { width: 34px; height: 34px; display: block; flex: none; }
.top-call { display: inline-flex; align-items: center; gap: 11px; font-size: 12px; font-weight: 700; }
.top-call strong { font-size: 15px; letter-spacing: -.02em; }
.top-call > span:last-child { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid #112b25; border-radius: 50%; font-size: 17px; }
.top-call:hover > span:last-child { background: #112b25; color: #fff; }

.main { flex: 1; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(350px, .9fr); align-items: center; gap: clamp(36px, 6vw, 96px); padding-block: 24px 36px; }
.intro { background: url('./gas-art.svg') right -90px center / 390px no-repeat; }
.eyebrow { display: flex; align-items: center; gap: 11px; margin: 0 0 32px; color: #477251; font-size: 12px; font-weight: 700; letter-spacing: -.03em; }
.eyebrow-line { display: block; width: 22px; height: 2px; background: #5da266; }
h1 { margin: 0; font-size: clamp(54px, 5.8vw, 84px); line-height: 1.18; letter-spacing: -.095em; font-weight: 800; word-break: keep-all; }
h1 span { color: #39804a; }
.intro-copy { margin: 25px 0 32px; color: #5f6f63; font-size: 17px; letter-spacing: -.04em; }
.main-call { width: min(100%, 460px); min-height: 108px; padding: 21px 26px; display: flex; flex-direction: column; justify-content: center; gap: 7px; border-radius: 13px; color: #112b25; background: #c4f278; transition: transform .2s, background .2s; }
.main-call:hover { transform: translateY(-3px); background: #b5ed61; }
.main-call > span { display: flex; justify-content: space-between; font-size: 14px; font-weight: 800; }
.main-call > span span { font-size: 18px; }
.main-call strong { font-size: clamp(27px, 3vw, 38px); letter-spacing: -.055em; }

.services { padding: 24px 28px 18px; border: 1px solid #dde5d9; border-radius: 18px; background: #fff; box-shadow: 0 20px 60px #203d2510; }
.services-head { display: flex; justify-content: space-between; padding-bottom: 15px; border-bottom: 2px solid #112b25; font-size: 12px; font-weight: 800; }
.services-head a { color: #274a32; font-size: 12px; white-space: nowrap; }
.services-head a:hover { text-decoration: underline; text-underline-offset: 3px; }
.service-row { min-height: 76px; display: grid; grid-template-columns: 28px minmax(0, 1fr) auto 20px; align-items: center; gap: 11px; border-bottom: 1px solid #e5ebe3; }
.service-row:hover strong, .service-row:hover .service-arrow { color: #397e49; }
.service-icon { width: 23px; height: 23px; color: #3d8053; }
.service-row strong { font-size: 20px; letter-spacing: -.06em; white-space: nowrap; }
.service-detail { color: #718277; font-size: 12px; white-space: nowrap; }
.service-arrow { font-size: 18px; text-align: right; }
.guide-open { width: 100%; min-height: 56px; margin-top: 17px; padding: 0 15px; display: flex; justify-content: space-between; align-items: center; gap: 10px; border: 0; border-radius: 9px; background: #ecf5e6; color: #294f33; font-size: 12px; text-align: left; }
.guide-open strong { font-size: 13px; white-space: nowrap; }
.guide-open:hover { background: #dcf0d1; }
.license-link { display: block; margin-top: 14px; color: #365a40; font-size: 12px; font-weight: 800; text-align: right; }
.license-link:hover { text-decoration: underline; text-underline-offset: 3px; }

.footer { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 16px; border-top: 1px solid #d7e0d5; color: #718078; font-size: 11px; }
.footer-info { display: grid; gap: 6px; padding-block: 12px; }
.footer p { margin: 0; }
.footer-account { color: #365a40; word-break: keep-all; }
.footer button { padding: 7px 0; border: 0; background: none; color: #365a40; font-size: 11px; font-weight: 800; white-space: nowrap; }
.footer button:hover { text-decoration: underline; text-underline-offset: 3px; }
.footer-links { display: flex; align-items: center; gap: 20px; white-space: nowrap; }
.footer-links > a { color: #365a40; font-size: 11px; font-weight: 800; }
.footer-links > a:hover { text-decoration: underline; text-underline-offset: 3px; }

.modal { width: min(540px, calc(100% - 24px)); max-height: calc(100dvh - 28px); margin: auto; padding: 26px; overflow-y: auto; border: 1px solid #dce6d8; border-radius: 18px; background: #fff; color: #112b25; box-shadow: 0 25px 90px #0b231e40; }
.modal::backdrop { background: #091e19a8; }
.modal-head { display: flex; align-items: start; justify-content: space-between; gap: 20px; }
.modal-head div > span { color: #679471; font-size: 11px; font-weight: 800; letter-spacing: .14em; }
.modal h2 { margin: 5px 0 0; font-size: 28px; letter-spacing: -.07em; }
.modal-visual { display: block; width: 100%; height: auto; margin-top: 18px; padding: 8px; border-radius: 10px; background: #f3f5ee; }
.close { width: 36px; height: 36px; border: 1px solid #d5e0d5; border-radius: 50%; background: #fff; color: #112b25; font-size: 25px; line-height: 1; }
.modal-note { margin: 19px 0; color: #617369; font-size: 13px; line-height: 1.7; word-break: keep-all; }
.search-label { display: block; margin: 22px 0 8px; font-size: 12px; font-weight: 800; }
#gas-search { width: 100%; height: 46px; padding: 0 13px; border: 1px solid #b8cbbb; border-radius: 8px; background: #fff; color: #112b25; font-size: 14px; }
.gas-list { margin-top: 13px; border-top: 1px solid #dce6d8; }
.gas-item { padding: 12px 2px; border-bottom: 1px solid #e7ede5; }
.gas-item[hidden], .no-results[hidden] { display: none; }
.gas-item h3 { margin: 0 0 4px; font-size: 15px; letter-spacing: -.04em; }
.gas-item h3 span { margin-left: 6px; color: #8a998e; font-size: 11px; font-weight: 500; letter-spacing: 0; }
.gas-item p { margin: 0; color: #67776c; font-size: 12px; line-height: 1.6; }
.no-results { color: #637269; font-size: 13px; }
.modal-call { min-height: 52px; margin-top: 20px; padding: 0 15px; display: flex; align-items: center; justify-content: space-between; gap: 10px; border-radius: 8px; background: #c4f278; font-size: 13px; font-weight: 800; }
.modal-call strong { white-space: nowrap; }
.facts { margin: 23px 0 0; border-top: 1px solid #dce6d8; }
.facts div { display: grid; grid-template-columns: 110px 1fr; gap: 12px; padding: 11px 0; border-bottom: 1px solid #e7ede5; font-size: 12px; }
.facts dt { color: #7b8c80; }
.facts dd { margin: 0; font-weight: 700; }
.modal-note a { text-decoration: underline; text-underline-offset: 3px; }

@media (max-width: 760px) {
  .wrap { width: min(100% - 36px, 1180px); }
  .topbar { min-height: 64px; }
  .brand { font-size: 17px; }
  .brand-mark { width: 31px; height: 31px; }
  .top-call { gap: 5px; }
  .top-call-label { display: none; }
  .top-call strong { font-size: 0; }
  .top-call > span:last-child { width: 34px; height: 34px; font-size: 19px; }
  .main { display: flex; flex-direction: column; justify-content: center; align-items: stretch; gap: 18px; padding-block: 12px 20px; }
  .intro { background-position: right -95px top -50px; background-size: 290px; }
  .eyebrow { margin-bottom: 12px; font-size: 10px; }
  h1 { font-size: clamp(37px, 10vw, 52px); line-height: 1.2; }
  .intro-copy { margin: 11px 0 17px; font-size: 12px; }
  .main-call { min-height: 70px; width: 100%; padding: 12px 17px; gap: 3px; border-radius: 10px; }
  .main-call > span { font-size: 12px; }
  .main-call strong { font-size: 25px; }
  .services { padding: 16px 17px 13px; border-radius: 13px; }
  .services-head { padding-bottom: 10px; font-size: 11px; }
  .service-row { min-height: 49px; grid-template-columns: 20px minmax(0, 1fr) auto 15px; gap: 7px; }
  .service-icon { width: 19px; height: 19px; }
  .service-row strong { font-size: 15px; }
  .service-detail { font-size: 10px; }
  .service-arrow { font-size: 15px; }
  .guide-open { min-height: 40px; margin-top: 11px; padding-inline: 10px; font-size: 10px; }
  .guide-open strong { font-size: 11px; }
  .license-link { margin-top: 10px; font-size: 11px; }
  .footer { min-height: 45px; flex-wrap: wrap; gap: 4px 16px; padding-block: 12px; font-size: 10px; }
  .footer-info { width: 100%; padding-block: 0; }
  .footer-account { font-size: 11px; }
  .footer p span { display: none; }
  .footer-links { gap: 10px; }
  .footer-links > a, .footer-links button { font-size: 10px; }
}

@media (max-width: 360px) {
  .wrap { width: min(100% - 26px, 1180px); }
  h1 { font-size: 35px; }
  .service-detail { font-size: 9px; }
  .services-head a span { display: none; }
  .modal { padding: 19px; }
}

@media (max-height: 640px) and (max-width: 760px) {
  .topbar { min-height: 55px; }
  .main { gap: 11px; padding-block: 6px 10px; }
  .eyebrow { margin-bottom: 7px; }
  h1 { font-size: clamp(32px, 8vw, 42px); }
  .intro-copy { margin: 8px 0 11px; }
  .main-call { min-height: 62px; }
  .services { padding-block: 11px 9px; }
  .service-row { min-height: 43px; }
  .guide-open { min-height: 36px; margin-top: 8px; }
  .footer { min-height: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  .main-call { transition: none; }
}

.info-page { background: #f3f5ee; }
.info-main { padding: 32px 0 86px; }
.back-link { color: #497254; font-size: 12px; font-weight: 800; }
.back-link:hover, .info-page .footer a:hover { text-decoration: underline; text-underline-offset: 3px; }
.info-intro { max-width: 900px; padding: 48px 0 54px; }
.info-kicker { margin: 0 0 18px; color: #4d8058; font-size: 11px; font-weight: 800; letter-spacing: .14em; }
.info-intro h1 { font-size: clamp(42px, 5vw, 66px); }
.info-intro h1 span { color: #39804a; }
.info-intro > p:last-child { max-width: 740px; margin: 24px 0 0; color: #52675a; font-size: 15px; line-height: 1.9; word-break: keep-all; }
.info-columns { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr); gap: 28px; align-items: start; }
.info-services, .info-contact { padding: 30px; border: 1px solid #dde5d9; border-radius: 16px; background: #fff; }
.info-columns h2, .evidence h2 { margin: 0 0 14px; font-size: 25px; letter-spacing: -.06em; }
.info-note, .evidence > p:not(.evidence-kicker) { margin: 0 0 20px; color: #64766a; font-size: 13px; line-height: 1.8; word-break: keep-all; }
.info-services article { display: flex; gap: 20px; padding: 23px 0; border-top: 1px solid #e0e9dc; }
.info-services article > span { flex: none; color: #599464; font-size: 11px; font-weight: 800; }
.info-services h3 { margin: 0 0 8px; font-size: 19px; letter-spacing: -.05em; }
.info-services article p { margin: 0; color: #637469; font-size: 13px; line-height: 1.8; word-break: keep-all; }
.info-contact dl { margin: 20px 0; border-top: 1px solid #dae5d8; }
.info-contact dl > div { display: grid; grid-template-columns: 100px 1fr; gap: 8px; padding: 11px 0; border-bottom: 1px solid #e5ece3; font-size: 12px; }
.info-contact dt { color: #738478; }
.info-contact dd { margin: 0; font-weight: 800; }
.info-contact > p { color: #5e7062; font-size: 12px; line-height: 1.75; }
.info-call { display: block; padding: 16px; border-radius: 8px; background: #c4f278; font-size: 15px; font-weight: 800; }
.info-call:hover { background: #b5ed61; }
.info-secondary { display: flex; gap: 10px; margin-top: 10px; }
.info-secondary a { flex: 1; padding: 12px; border: 1px solid #bbd3b9; border-radius: 8px; text-align: center; color: #315c3b; font-size: 12px; font-weight: 800; }
.info-secondary a:hover { background: #ecf5e6; }
.info-contact .info-email { margin-bottom: 0; word-break: break-all; }
.evidence { margin-top: 54px; padding-top: 46px; border-top: 1px solid #cddbcc; }
.evidence-kicker { margin: 0 0 12px; color: #4d8058; font-size: 11px; font-weight: 800; letter-spacing: .14em; }
.evidence-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.evidence figure { margin: 0; padding: 12px; border: 1px solid #dde5d9; border-radius: 14px; background: #fff; box-shadow: 0 18px 42px #203d250b; }
.evidence-stage { min-height: 280px; padding: 18px; display: grid; place-items: center; overflow: hidden; border-radius: 8px; background: radial-gradient(circle at 50% 30%, #fff 0, #e8eee5 85%); }
.evidence img { display: block; width: 100%; max-height: 260px; object-fit: contain; filter: drop-shadow(0 10px 12px #1b302622); }
.evidence .permit .evidence-stage { background: #e8eee5; }
.evidence .permit img { width: auto; max-width: 100%; }
.evidence figcaption { padding: 16px 7px 5px; display: grid; gap: 6px; }
.evidence figcaption span { color: #6c8472; font-size: 11px; font-weight: 700; }
.evidence figcaption strong { color: #173b28; font-size: 17px; letter-spacing: -.04em; }
.evidence figcaption span:last-child { margin-top: 4px; color: #397e49; }
.evidence figure a:hover .evidence-stage { outline: 2px solid #89b997; outline-offset: -2px; }
.info-page .footer a { color: #365a40; font-weight: 800; }
@media (max-width: 760px) {
  .info-main { padding: 20px 0 52px; }
  .info-intro { padding: 36px 0; }
  .info-intro h1 { font-size: clamp(34px, 9vw, 49px); }
  .info-intro > p:last-child { font-size: 13px; }
  .info-columns, .evidence-grid { grid-template-columns: 1fr; }
  .info-services, .info-contact { padding: 22px; }
  .evidence { margin-top: 40px; padding-top: 36px; }
  .evidence-stage { min-height: 230px; }
  .evidence img { max-height: 220px; }
  .info-page .footer { align-items: start; padding-block: 20px; }
}