:root {
  --ink: #101214;
  --concrete: #f0f1ec;
  --line: #d8dad2;
  --muted: #626960;
  --white: #ffffff;
  --safety: #f5c542;
  --blue: #1f72b8;
  --deep: #071018;
  --shadow: 0 22px 70px rgba(7, 16, 24, 0.18);
  color: var(--ink);
  font-family: "Noto Sans KR", sans-serif;
  background: var(--concrete);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  word-break: keep-all;
  overflow-wrap: break-word;
  background:
    linear-gradient(90deg, rgba(16, 18, 20, 0.035) 1px, transparent 1px) 0 0 / 72px 72px,
    var(--concrete);
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 18px clamp(16px, 4vw, 58px);
  color: var(--white);
  background: linear-gradient(180deg, rgba(7, 16, 24, 0.72), rgba(7, 16, 24, 0));
}

.brand {
  font-family: "Black Han Sans", "Noto Sans KR", sans-serif;
  font-size: clamp(1.55rem, 2.8vw, 2.5rem);
  letter-spacing: 0;
}

.nav {
  display: flex;
  gap: clamp(18px, 4vw, 46px);
  font-size: 0.86rem;
  font-weight: 800;
}

.call-button {
  justify-self: end;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.65);
  font-weight: 900;
}

.hero {
  position: relative;
  min-height: 96vh;
  overflow: hidden;
  display: grid;
  align-items: end;
  color: var(--white);
}

.hero > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 16, 24, 0.86), rgba(7, 16, 24, 0.24) 58%, rgba(7, 16, 24, 0.12)),
    linear-gradient(0deg, rgba(7, 16, 24, 0.92), transparent 50%);
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: min(920px, calc(100% - 32px));
  margin: 0 0 clamp(110px, 14vh, 160px) clamp(16px, 7vw, 96px);
  animation: lift 720ms ease both;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--safety);
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  font-family: "Black Han Sans", "Noto Sans KR", sans-serif;
  line-height: 0.98;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(3.2rem, 8vw, 8.8rem);
}

h2 {
  font-size: clamp(2.2rem, 5.4vw, 5.8rem);
}

h3 {
  margin: 0;
  letter-spacing: 0;
}

.hero-copy p:not(.eyebrow) {
  max-width: 680px;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(1rem, 1.4vw, 1.3rem);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid currentColor;
  border-radius: 0;
  font-weight: 900;
  cursor: pointer;
}

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

.button.ghost {
  color: var(--white);
  background: transparent;
}

.hero-strip {
  position: absolute;
  inset: auto 0 0;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(7, 16, 24, 0.8);
}

.hero-strip span {
  padding: 18px;
  text-align: center;
  font-weight: 900;
  border-right: 1px solid rgba(255, 255, 255, 0.16);
}

.trust-bar {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.trust-bar div {
  padding: 28px clamp(18px, 4vw, 48px);
  background: var(--white);
}

.trust-bar strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.2rem;
}

.trust-bar span {
  color: var(--muted);
}

.section {
  padding: clamp(72px, 10vw, 140px) clamp(16px, 5vw, 80px);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(300px, 0.5fr);
  gap: 28px;
  align-items: end;
  margin-bottom: 44px;
}

.section-head.compact {
  grid-template-columns: 1fr;
  max-width: 880px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.service-grid article {
  background: var(--white);
}

.service-grid img {
  width: 100%;
  aspect-ratio: 1 / 0.82;
  object-fit: cover;
}

.service-grid div {
  padding: 24px;
}

.service-grid span {
  display: block;
  margin-bottom: 24px;
  color: var(--blue);
  font-size: 2rem;
  font-weight: 900;
}

.service-grid h3 {
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.service-grid p,
.video-row p,
.steps p,
.quote-copy p {
  color: var(--muted);
  line-height: 1.75;
}

.proof {
  color: var(--white);
  background: var(--deep);
}

.proof .section-head h2,
.proof h3 {
  color: var(--white);
}

.gallery {
  display: grid;
  grid-template-columns: 1.25fr 0.8fr 0.95fr;
  grid-auto-rows: 260px;
  gap: 12px;
}

.gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery img:nth-child(1) {
  grid-row: span 2;
}

.gallery img:nth-child(3) {
  grid-row: span 2;
}

.video-row {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(420px, 1fr);
  gap: clamp(26px, 5vw, 70px);
  align-items: center;
  margin-top: 58px;
}

.video-row video {
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 320px;
  height: auto;
  max-height: 620px;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: var(--shadow);
}

.video-row h3 {
  font-family: "Black Han Sans", "Noto Sans KR", sans-serif;
  font-size: clamp(1.8rem, 3.7vw, 4rem);
  line-height: 1.08;
}

.process {
  background: var(--white);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.steps li {
  min-height: 260px;
  padding: 28px;
  background: var(--concrete);
}

.steps span {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 34px;
  color: var(--ink);
  background: var(--safety);
  font-weight: 900;
}

.steps strong {
  display: block;
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.quote {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(340px, 0.72fr);
  gap: clamp(30px, 7vw, 110px);
  background:
    linear-gradient(135deg, rgba(31, 114, 184, 0.14), transparent 35%),
    var(--concrete);
}

.phone-link {
  display: inline-block;
  margin: 24px 0 10px;
  font-size: clamp(2rem, 5vw, 4.6rem);
  font-weight: 900;
  color: var(--blue);
}

.quote-copy span {
  display: block;
  color: var(--muted);
}

.quote-form {
  display: grid;
  gap: 16px;
  padding: clamp(22px, 4vw, 42px);
  color: var(--white);
  background: var(--deep);
}

.quote-form label {
  display: grid;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 900;
}

.quote-form input,
.quote-form select,
.quote-form textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  padding: 14px 15px;
  outline: none;
}

.quote-form option {
  color: var(--ink);
}

.quote-form input:focus,
.quote-form select:focus,
.quote-form textarea:focus {
  border-color: var(--safety);
}

.quote-note {
  min-height: 1.4em;
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
}

.sticky-call {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 18;
  display: none;
  padding: 14px 18px;
  color: var(--ink);
  background: var(--safety);
  box-shadow: var(--shadow);
  font-weight: 900;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 30px clamp(16px, 5vw, 80px);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer strong {
  color: var(--ink);
}

@keyframes lift {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav {
    display: none;
  }

  .hero-strip,
  .trust-bar,
  .service-grid,
  .steps,
  .section-head,
  .video-row,
  .quote {
    grid-template-columns: 1fr;
  }

  .hero-strip {
    position: relative;
  }

  .hero {
    min-height: auto;
  }

  .hero-copy {
    margin: 130px 16px 60px;
  }

  .gallery {
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 210px;
  }

  .video-row video {
    max-height: 480px;
  }
}

@media (max-width: 620px) {
  .sticky-call {
    display: none;
  }

  .call-button {
    padding: 10px 12px;
    font-size: 0.84rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

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

  .gallery img:nth-child(1),
  .gallery img:nth-child(3) {
    grid-row: span 1;
  }

  .footer {
    flex-direction: column;
  }
}