:root {
  --navy-950: #071018;
  --navy-900: #0b1a2b;
  --navy-800: #10243a;
  --navy-700: #1a3a5c;
  --blue-700: #1d4f86;
  --blue-600: #2a5f93;
  --blue-400: #4f8ec4;
  --cyan-300: #7ec8e3;
  --gold: #c9a24a;
  --paper: #ffffff;
  --paper-soft: #f4f8fc;
  --line: #d7e3ef;
  --ink: #142033;
  --muted: #5c6b7d;
  --white: #ffffff;
  --shadow: 0 24px 60px rgba(16, 48, 82, 0.1);
  --radius: 22px;
  --header-h: 84px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

@font-face {
  font-family: "Pretendard Variable";
  font-weight: 45 920;
  font-style: normal;
  font-display: swap;
  src: url("../fonts/PretendardVariable.woff2") format("woff2-variations");
}

body {
  font-family: "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.site-header.scrolled {
  border-bottom-color: rgba(20, 32, 51, 0.08);
  box-shadow: 0 8px 30px rgba(7, 16, 24, 0.06);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-logo {
  width: 52px;
  height: 52px;
  object-fit: contain;
  background: transparent;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text strong {
  font-size: 16px;
  letter-spacing: -0.02em;
}

.brand-text em {
  font-family: "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", sans-serif;
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--blue-600);
  font-weight: 600;
}

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav a {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--navy-800);
}

.nav a:hover {
  color: var(--blue-600);
}

.nav-cta {
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--navy-900);
  color: var(--white) !important;
}

.nav-cta:hover {
  background: var(--blue-600);
  color: var(--white) !important;
}

.menu-btn {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-btn span {
  display: block;
  height: 2px;
  margin: 6px 8px;
  background: var(--navy-900);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.hero {
  position: relative;
  background:
    linear-gradient(160deg, #081421 0%, #123152 58%, #1a4a6e 100%);
  color: var(--white);
  padding: 72px 0 28px;
  overflow: hidden;
}

.hero-aurora {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 78% 18%, rgba(126, 200, 227, 0.22), transparent 28%),
    radial-gradient(circle at 20% 80%, rgba(79, 142, 196, 0.2), transparent 32%);
  pointer-events: none;
}

.hero-viewport {
  position: relative;
}

.hero-slide {
  display: none;
}

.hero-slide.is-active {
  display: block;
  animation: hero-in 0.45s ease;
}

@keyframes hero-in {
  from { opacity: 0; transform: translateX(24px); }
  to { opacity: 1; transform: none; }
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding-bottom: 28px;
}

.hero-controls {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding-bottom: 18px;
}

.hero-nav {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
}

.hero-nav:hover {
  background: rgba(255, 255, 255, 0.18);
}

.hero-dots {
  display: flex;
  gap: 8px;
}

.hero-dots button {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
}

.hero-dots button.is-active {
  width: 22px;
  background: var(--cyan-300);
}

.eyebrow {
  font-family: "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--cyan-300);
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.22;
  letter-spacing: -0.035em;
  font-weight: 700;
}

.hero h1 span {
  color: var(--cyan-300);
}

.hero-lead {
  margin: 18px 0 28px;
  max-width: 480px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 17px;
}

.hero-visual {
  margin: 0;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.28);
}

.hero-visual img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

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

.btn-gold {
  background: var(--blue-600);
  color: var(--white);
}

.btn-gold:hover {
  background: var(--blue-400);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.28);
  color: var(--white);
  background: rgba(255, 255, 255, 0.06);
}

.btn-full {
  width: 100%;
}

.partners {
  padding: 72px 0 40px;
}

.partner-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.partner-list button {
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--white);
  border: 1px solid var(--line);
  font-family: "Pretendard Variable", Pretendard, sans-serif;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy-700);
  cursor: pointer;
}

.partner-list button:hover {
  border-color: var(--blue-400);
  color: var(--blue-600);
}

.partner-list button.is-active {
  background: var(--navy-900);
  border-color: var(--navy-900);
  color: var(--white);
}

.media-panels {
  min-height: 280px;
}

.media-panel[hidden] {
  display: none;
}

.media-panel .eyebrow {
  color: var(--blue-600);
}

.media-panel .package-grid {
  margin-top: 28px;
}

.section {
  padding: 96px 0;
}

.section-no {
  font-family: "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--gold);
  margin-bottom: 12px;
}

.section h2,
.about h2,
.contact-copy h2 {
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.28;
  letter-spacing: -0.03em;
}

.section-head {
  max-width: 680px;
  margin-bottom: 42px;
}

.section-desc {
  margin-top: 14px;
  color: var(--muted);
  font-size: 17px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.about-visual {
  margin: 0;
  border-radius: 24px;
  overflow: hidden;
}

.about-visual img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}

.about-lead {
  margin: 16px 0 22px;
  color: var(--muted);
  font-size: 17px;
}

.about-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
}

.about-chips li {
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--paper-soft);
  border: 1px solid var(--line);
  font-size: 13px;
  font-weight: 700;
  color: var(--navy-700);
}

.services {
  background: var(--navy-900);
  color: var(--white);
}

.services .section-desc {
  color: rgba(255, 255, 255, 0.68);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.pic-card {
  grid-column: span 2;
  overflow: hidden;
  border-radius: var(--radius);
  background: #12263c;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.pic-card:nth-child(4),
.pic-card:nth-child(5) {
  grid-column: span 3;
}

.pic-card img {
  width: 100%;
  height: 168px;
  object-fit: cover;
}

.pic-card div {
  padding: 18px 20px 20px;
}

.pic-card h3 {
  font-size: 20px;
  letter-spacing: -0.02em;
}

.pic-card p {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.pic-card.featured {
  border-color: rgba(126, 200, 227, 0.35);
}

.package ul {
  margin-top: 14px;
  padding-left: 18px;
}

.package li + li {
  margin-top: 6px;
}

.commerce-hero {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  min-height: 260px;
  margin-bottom: 28px;
  color: var(--white);
}

.commerce-hero img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  filter: brightness(0.45);
}

.commerce-hero div {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px;
}

.commerce-hero p:last-child {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.82);
}

.package-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.package {
  position: relative;
  appearance: none;
  padding: 26px 22px 24px;
  background: var(--white);
  border-radius: 20px;
  border: 1px solid var(--line);
  box-shadow: 0 10px 30px rgba(16, 36, 58, 0.04);
  text-align: left;
  color: inherit;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.package:hover {
  border-color: var(--blue-400);
  transform: translateY(-2px);
}

.package.is-active {
  background: var(--navy-900);
  color: var(--white);
  border-color: var(--navy-900);
}

.package-badge {
  position: absolute;
  top: -11px;
  left: 18px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--blue-600);
  color: var(--white);
  font-size: 11px;
  font-weight: 800;
}

.package-tier {
  font-family: "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", sans-serif;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--blue-400);
}

.package h3 {
  font-size: 20px;
  margin: 8px 0 2px;
  letter-spacing: -0.02em;
}

.package-name {
  font-weight: 700;
  margin-bottom: 10px;
}

.package p,
.package li {
  font-size: 14.5px;
}

.package.is-active p,
.package.is-active li {
  color: rgba(255, 255, 255, 0.78);
}

.package.is-active .package-tier {
  color: var(--cyan-300);
}

.package-panels {
  margin-top: 22px;
}

.package-detail {
  padding: 28px 30px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 16px 40px rgba(16, 48, 82, 0.06);
  animation: detail-in 0.28s ease;
}

.package-detail[hidden] {
  display: none;
}

.detail-head h3 {
  margin: 6px 0 8px;
  font-size: 24px;
  letter-spacing: -0.03em;
}

.detail-head p:last-child {
  color: var(--muted);
}

.detail-specs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 22px 0 18px;
}

.detail-specs div {
  padding: 14px 16px;
  background: var(--paper-soft);
  border-radius: 14px;
}

.detail-specs dt {
  font-size: 12px;
  font-weight: 700;
  color: var(--blue-600);
  margin-bottom: 4px;
}

.detail-specs dd {
  font-size: 14.5px;
  font-weight: 600;
}

.detail-list {
  padding-left: 18px;
  color: var(--navy-700);
}

.detail-list li + li {
  margin-top: 6px;
}

@keyframes detail-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.commerce-note {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  margin-top: 28px;
  padding: 24px 26px;
  background: var(--paper-soft);
  border: 1px solid var(--line);
  border-radius: 20px;
}

.commerce-note p {
  color: var(--navy-700);
  font-size: 14.5px;
}

.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.steps li {
  position: relative;
  padding: 26px 16px 22px;
  background: var(--white);
  border-radius: 20px;
  border: 1px solid var(--line);
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.steps li:hover {
  transform: translateY(-3px);
  border-color: #b9d3e8;
  box-shadow: 0 14px 30px rgba(16, 48, 82, 0.08);
}

.steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 52px;
  right: -12px;
  width: 10px;
  height: 10px;
  border-top: 2px solid #b9d3e8;
  border-right: 2px solid #b9d3e8;
  transform: rotate(45deg);
  z-index: 1;
}

.step-icon {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  margin: 0 auto 12px;
  border-radius: 50%;
  background: linear-gradient(180deg, #eef6fc, #dcebf7);
  color: var(--blue-700);
  box-shadow: inset 0 0 0 1px rgba(42, 95, 147, 0.08);
}

.step-icon svg {
  width: 34px;
  height: 34px;
}

.steps b {
  display: block;
  font-family: "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", sans-serif;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.steps h3 {
  margin: 6px 0 0;
  font-size: 18px;
}

.contact {
  background:
    linear-gradient(180deg, #ffffff 0%, #eef5fb 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}

.contact-copy p {
  margin: 16px 0 20px;
  color: var(--muted);
  font-size: 17px;
}

.contact-form {
  padding: 28px;
  background: var(--white);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.contact-form label,
.contact-form legend {
  display: block;
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy-800);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  margin-top: 6px;
  padding: 12px 13px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper-soft);
  outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--blue-400);
  box-shadow: 0 0 0 3px rgba(79, 142, 196, 0.18);
}

.contact-form fieldset {
  border: 0;
  margin: 6px 0 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
}

.check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600 !important;
  margin: 0 !important;
}

.check input {
  width: auto;
  margin: 0;
}

.form-status {
  margin-top: 12px;
  min-height: 1.4em;
  font-size: 14px;
  color: var(--blue-600);
}

.site-footer {
  background: var(--navy-950);
  color: rgba(255, 255, 255, 0.78);
  padding: 42px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 32px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-brand img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  background: transparent;
}

.footer-brand p,
.footer-meta p {
  font-size: 14px;
}

.footer-phone {
  margin-top: 4px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--white);
}

.footer-phone a {
  color: inherit;
}

.copyright {
  color: rgba(255, 255, 255, 0.45);
  font-family: "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", sans-serif;
  font-size: 12px;
  align-self: center;
}

.commerce-hero h2 {
  color: var(--white);
}

@media (max-width: 1024px) {
  .hero-grid,
  .about-grid,
  .contact-grid,
  .package-grid,
  .steps,
  .detail-specs {
    grid-template-columns: 1fr 1fr;
  }

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

  .pic-card,
  .pic-card:nth-child(4),
  .pic-card:nth-child(5) {
    grid-column: span 1;
  }

  .steps li:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 860px) {
  .menu-btn {
    display: block;
  }

  .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    padding: 18px 20px 24px;
    background: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    border-bottom: 1px solid var(--line);
  }

  .nav.open {
    display: flex;
  }

  .hero,
  .section {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .hero-grid,
  .about-grid,
  .contact-grid,
  .package-grid,
  .steps,
  .field-row,
  .footer-inner,
  .detail-specs {
    grid-template-columns: 1fr;
  }

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

  .steps li:not(:last-child)::after {
    display: none;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-visual img,
  .about-visual img {
    height: 240px;
  }

  .brand-logo {
    width: 44px;
    height: 44px;
  }

  .brand-text em {
    display: none;
  }
}