:root {
  color-scheme: light;
  --green: #229653;
  --green-dark: #0f6d3a;
  --ink: #1f2524;
  --muted: #5d6b68;
  --line: #dfe8e4;
  --paper: #f7fbf8;
  --sky: #e7f6ff;
  --amber: #c99338;
  --white: #ffffff;
  --shadow: 0 18px 48px rgba(20, 46, 36, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family:
    "Pretendard",
    "Apple SD Gothic Neo",
    "Noto Sans KR",
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 14px clamp(20px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(223, 232, 228, 0.86);
  backdrop-filter: blur(14px);
}

.brand {
  display: grid;
  gap: 0;
  min-width: 170px;
}

.brand span {
  color: var(--green);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 0;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(14px, 3vw, 32px);
  color: #31413d;
  font-size: 15px;
  font-weight: 800;
}

.nav-links a,
.header-call {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}

.header-call {
  justify-content: center;
  padding: 0 16px;
  color: var(--white);
  background: var(--ink);
  border-radius: 8px;
  font-weight: 900;
  white-space: nowrap;
}

.hero {
  position: relative;
  min-height: 76svh;
  display: flex;
  align-items: center;
  isolation: isolate;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(6, 35, 28, 0.82) 0%, rgba(6, 35, 28, 0.58) 42%, rgba(6, 35, 28, 0.16) 100%),
    url("./assets/hero-bg.jpg") center / cover no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.16), rgba(0, 0, 0, 0));
}

.hero-inner {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 60px 0 76px;
  color: var(--white);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0;
}

.hero .eyebrow {
  color: #bff1d2;
}

h1,
h2,
h3,
p {
  word-break: keep-all;
}

h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(48px, 8vw, 94px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 560px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(18px, 2.5vw, 23px);
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 8px;
  font-weight: 900;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  color: var(--white);
  background: var(--green);
  box-shadow: 0 10px 28px rgba(34, 150, 83, 0.28);
}

.button.secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.64);
}

.quick-proof {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: min(1120px, calc(100% - 40px));
  margin: -34px auto 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
  z-index: 3;
}

.quick-proof div {
  min-height: 94px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 4px;
  padding: 18px 12px;
  border-left: 1px solid var(--line);
}

.quick-proof div:first-child {
  border-left: 0;
}

.quick-proof strong {
  color: var(--green-dark);
  font-size: clamp(24px, 3.5vw, 36px);
  line-height: 1;
}

.quick-proof span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  width: min(1120px, calc(100% - 40px));
  margin: 22px auto 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.trust-strip article {
  min-height: 112px;
  display: grid;
  align-content: center;
  gap: 8px;
  padding: 20px;
  background: #fbfdfb;
}

.trust-strip strong {
  color: var(--green-dark);
  font-size: 18px;
}

.trust-strip span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.section {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 94px 0;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 34px;
}

.section-copy {
  max-width: 650px;
}

h2 {
  margin: 0;
  font-size: clamp(30px, 4.6vw, 52px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: 0;
}

.section-copy p:not(.eyebrow),
.section-heading + p,
.contact-section p {
  color: var(--muted);
  font-size: 18px;
}

.intro {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(36px, 6vw, 72px);
  align-items: start;
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.impact-grid article,
.model-card,
.feature-list article,
.place-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.impact-grid article {
  min-height: 210px;
  padding: 24px;
}

.impact-grid span {
  display: block;
  margin-bottom: 34px;
  color: var(--amber);
  font-weight: 900;
}

.impact-grid p,
.model-card p,
.feature-list p,
.place-grid p,
.process-list p,
.checklist-grid span,
.site-footer p,
.form-note {
  color: var(--muted);
}

.model-section {
  width: 100%;
  max-width: none;
  background: var(--paper);
  padding: 90px clamp(20px, 4vw, 56px);
}

.model-section > * {
  width: min(1120px, 100%);
  margin-left: auto;
  margin-right: auto;
}

.model-lineup {
  width: min(920px, 100%);
  height: auto;
  margin-bottom: 26px;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.model-card {
  padding: 26px;
}

.model-card.featured {
  border-color: rgba(34, 150, 83, 0.42);
  box-shadow: 0 18px 42px rgba(34, 150, 83, 0.14);
}

.model-card p {
  min-height: 54px;
  margin: 12px 0 24px;
  font-weight: 700;
}

dl,
dd {
  margin: 0;
}

.model-card dl {
  display: grid;
  gap: 10px;
}

.model-card dl div {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.model-card dt {
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.model-card dd {
  text-align: right;
  font-weight: 900;
  word-break: break-word;
}

.fit-guide {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 22px;
  align-items: stretch;
  margin-top: 26px;
}

.fit-guide-copy,
.fit-guide-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.fit-guide-copy {
  padding: 26px;
}

.fit-guide-copy h3 {
  font-size: clamp(24px, 3vw, 34px);
}

.fit-guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.fit-guide-grid article {
  display: grid;
  align-content: start;
  gap: 12px;
  min-height: 160px;
  padding: 24px;
}

.fit-guide-grid strong {
  color: var(--green-dark);
  font-size: 30px;
  line-height: 1;
}

.fit-guide-grid span {
  color: var(--muted);
  font-weight: 800;
}

.feature-section {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 42px;
  align-items: center;
}

.cleaning-photo {
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.feature-list {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.feature-list article {
  padding: 22px;
}

.feature-list p {
  margin-bottom: 0;
}

.places-section {
  width: 100%;
  max-width: none;
  background: linear-gradient(180deg, var(--sky), #ffffff);
  padding: 90px clamp(20px, 4vw, 56px);
}

.places-section > * {
  width: min(1120px, 100%);
  margin-left: auto;
  margin-right: auto;
}

.install-scenes {
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.place-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.place-grid article {
  padding: 22px;
  background: rgba(255, 255, 255, 0.84);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.process-list li {
  min-height: 210px;
  padding: 24px;
  border-top: 4px solid var(--green);
  background: #f9faf8;
  border-radius: 8px;
}

.process-list span {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 24px;
  color: var(--white);
  background: var(--green-dark);
  border-radius: 50%;
  font-weight: 900;
}

.process-list strong {
  display: block;
  font-size: 21px;
}

.checklist-section {
  padding-top: 18px;
}

.checklist-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.checklist-grid article {
  min-height: 124px;
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff, #f8fbf9);
}

.checklist-grid strong {
  font-size: 20px;
}

.checklist-grid span {
  font-weight: 700;
}

.report-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  padding-top: 34px;
}

.report-panel {
  padding: 28px;
  border: 1px solid rgba(34, 150, 83, 0.24);
  border-radius: 8px;
  background: #f4fbf6;
}

.report-panel p {
  margin-top: 0;
  color: #3f514c;
  font-size: 18px;
  font-weight: 700;
}

.report-panel ul {
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.report-panel li {
  position: relative;
  padding-left: 20px;
  color: var(--ink);
  font-weight: 900;
}

.report-panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  background: var(--green);
  border-radius: 50%;
}

.faq-section {
  padding-top: 34px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  overflow: hidden;
}

.faq-list summary {
  cursor: pointer;
  padding: 20px 24px;
  color: var(--ink);
  font-size: 20px;
  font-weight: 900;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  float: right;
  color: var(--green);
  font-weight: 900;
}

.faq-list details[open] summary::after {
  content: "-";
}

.faq-list p {
  margin: 0;
  padding: 0 24px 22px;
  color: var(--muted);
  font-size: 17px;
  font-weight: 700;
}

.contact-section {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: clamp(34px, 6vw, 72px);
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto 90px;
  padding: clamp(34px, 6vw, 58px);
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(18, 71, 52, 0.96), rgba(28, 115, 77, 0.92)),
    url("./assets/hero-machine.jpg") right bottom / 320px auto no-repeat;
  border-radius: 8px;
  overflow: hidden;
}

.contact-section .eyebrow {
  color: #c9f8d8;
}

.contact-section h2 {
  max-width: 590px;
}

.contact-section p {
  color: rgba(255, 255, 255, 0.78);
}

.lead-form {
  display: grid;
  gap: 14px;
  padding: 24px;
  background: var(--white);
  border-radius: 8px;
}

.lead-form label {
  display: grid;
  gap: 7px;
  color: #2c3835;
  font-size: 14px;
  font-weight: 900;
}

.lead-form input,
.lead-form select {
  width: 100%;
  height: 46px;
  padding: 0 12px;
  color: var(--ink);
  border: 1px solid #cfdad6;
  border-radius: 8px;
  background: #ffffff;
  font: inherit;
}

.lead-form input:focus,
.lead-form select:focus {
  outline: 3px solid rgba(34, 150, 83, 0.2);
  border-color: var(--green);
}

.lead-form button {
  min-height: 48px;
  color: var(--white);
  background: var(--green);
  border: 0;
  border-radius: 8px;
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.form-prompt {
  margin: 2px 0 0;
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 900;
}

.form-note {
  margin: 0;
  font-size: 13px;
}

.sticky-cta {
  display: none;
}

.site-footer {
  padding: 34px clamp(20px, 4vw, 56px);
  background: #18201e;
  color: var(--white);
}

.site-footer p {
  max-width: 760px;
  margin-bottom: 0;
}

@media (max-width: 920px) {
  .site-header {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .nav-links {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
  }

  .hero {
    min-height: 78svh;
    background:
      linear-gradient(90deg, rgba(6, 35, 28, 0.86) 0%, rgba(6, 35, 28, 0.62) 100%),
      url("./assets/hero-bg.jpg") center / cover no-repeat;
  }

  .quick-proof,
  .trust-strip,
  .intro,
  .impact-grid,
  .model-grid,
  .fit-guide,
  .fit-guide-grid,
  .feature-section,
  .feature-list,
  .place-grid,
  .process-list,
  .checklist-grid,
  .report-section,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .quick-proof {
    margin-top: 0;
    border-radius: 0;
    width: 100%;
    box-shadow: none;
  }

  .quick-proof div {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .quick-proof div:first-child {
    border-top: 0;
  }

  .trust-strip {
    width: calc(100% - 40px);
  }

  .section,
  .model-section,
  .places-section {
    padding-top: 70px;
    padding-bottom: 70px;
  }

  .model-card p {
    min-height: auto;
  }

  .model-card dl div {
    display: grid;
    justify-content: stretch;
    gap: 4px;
  }

  .model-card dd {
    text-align: left;
  }

  .fit-guide-grid article {
    min-height: auto;
  }

  .contact-section {
    margin-bottom: 56px;
    padding: 30px 20px;
    background: linear-gradient(135deg, rgba(18, 71, 52, 0.98), rgba(28, 115, 77, 0.94));
  }
}

@media (max-width: 560px) {
  body {
    padding-bottom: 82px;
  }

  .site-header {
    display: flex;
    align-items: stretch;
    min-height: 64px;
    padding: 12px 16px;
    gap: 10px;
  }

  .nav-links {
    width: 100%;
    gap: 20px;
  }

  .nav-links a,
  .header-call {
    min-height: 34px;
  }

  .brand span {
    font-size: 22px;
  }

  .header-call {
    width: 100%;
    padding: 0 12px;
    font-size: 14px;
  }

  .hero {
    min-height: 440px;
  }

  .hero-inner {
    width: calc(100% - 32px);
    padding: 28px 0 34px;
  }

  h1 {
    font-size: clamp(42px, 14vw, 64px);
  }

  .hero-copy {
    font-size: 17px;
  }

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

  .section {
    width: calc(100% - 32px);
  }

  .impact-grid article,
  .model-card,
  .fit-guide-copy,
  .fit-guide-grid article,
  .feature-list article,
  .place-grid article,
  .process-list li,
  .checklist-grid article,
  .report-panel {
    padding: 20px;
  }

  .faq-list summary {
    padding: 18px 20px;
    font-size: 18px;
  }

  .faq-list p {
    padding: 0 20px 20px;
  }

  .sticky-cta {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 30;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
    background: rgba(255, 255, 255, 0.94);
    border-top: 1px solid var(--line);
    box-shadow: 0 -10px 28px rgba(20, 46, 36, 0.12);
    backdrop-filter: blur(14px);
  }

  .sticky-cta a {
    min-height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    background: var(--green);
    border-radius: 8px;
    font-weight: 900;
  }

  .sticky-cta a:last-child {
    color: var(--ink);
    background: #edf5f0;
    border: 1px solid #c8ddd3;
  }
}