:root {
  --navy: #0b2e59;
  --blue-deep: #0f4c9c;
  --blue: #1e78d1;
  --blue-light: #4fb3ea;
  --blue-pale: #eaf4fc;
  --text-dark: #14213d;
  --text-body: #3a4a5f;
  --white: #ffffff;
  --border: #dbe6f0;
  --max-width: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-body);
  line-height: 1.6;
  background: var(--white);
  overflow-x: hidden;
}

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

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  color: var(--text-dark);
  font-weight: 700;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--navy);
}

.brand img {
  height: 40px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-dark);
  transition: color 0.2s;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--navy);
}

/* Hero */
.hero {
  padding: 168px 0 77px;
  background: linear-gradient(160deg, var(--blue-pale) 0%, #ffffff 60%);
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -80px;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--blue-light), var(--blue-deep) 70%);
  opacity: 0.12;
}

.hero .container {
  position: relative;
  text-align: center;
  max-width: 960px;
}

.eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--blue);
  text-transform: uppercase;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  line-height: 1.3;
  margin-bottom: 14px;
}

.hero h1 .en {
  display: block;
  font-size: 0.55em;
  font-weight: 600;
  color: var(--blue-deep);
  margin-bottom: 10px;
  letter-spacing: 0.01em;
}

.hero p.lead {
  font-size: 1.15rem;
  color: var(--text-body);
  white-space: nowrap;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 30px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.98rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-deep), var(--blue));
  color: var(--white);
  box-shadow: 0 8px 20px rgba(15, 76, 156, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(15, 76, 156, 0.32);
}

.btn-outline {
  background: var(--white);
  color: var(--blue-deep);
  border-color: var(--blue-deep);
}

.btn-outline:hover {
  background: var(--blue-pale);
  transform: translateY(-2px);
}

/* Section shared */
section {
  padding: 96px 0;
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin-bottom: 14px;
}

.section-head p {
  color: var(--text-body);
  font-size: 1.1rem;
}

/* About */
.about {
  background: var(--white);
  padding-top: 77px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.about-media img {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 24px 48px rgba(11, 46, 89, 0.18);
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: 18px;
  font-size: 1.22rem;
  color: var(--text-body);
  text-align: left;
}

.about-text p {
  white-space: normal;
}

.about-text strong {
  color: var(--text-dark);
}

/* Services */
.services {
  background: var(--blue-pale);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 26px;
  text-align: left;
  transition: transform 0.2s, box-shadow 0.2s;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(11, 46, 89, 0.1);
}

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-light));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-icon svg {
  width: 26px;
  height: 26px;
  stroke: var(--white);
}

.service-card h3 {
  font-size: 1.08rem;
  margin-bottom: 6px;
}

.service-card .en-name {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--blue);
  margin-bottom: 10px;
}

.service-card p {
  font-size: 0.92rem;
  color: var(--text-body);
}

/* Contact */
.contact {
  background: var(--white);
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 48px;
  align-items: start;
}

.contact-info h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin-bottom: 14px;
}

.contact-info p {
  margin-bottom: 28px;
}

.contact-detail-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-detail-list li {
  display: flex;
  gap: 10px;
  font-size: 0.95rem;
}

.contact-detail-list span.label {
  font-weight: 700;
  color: var(--text-dark);
  min-width: 64px;
}

.form-card {
  background: var(--blue-pale);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field {
  margin-bottom: 18px;
}

.field label {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.field label .req {
  color: #e14b4b;
  margin-left: 2px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--white);
  color: var(--text-dark);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(30, 120, 209, 0.15);
}

.field textarea {
  resize: vertical;
  min-height: 120px;
}

.consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.86rem;
  color: var(--text-body);
  margin-bottom: 22px;
}

.consent input {
  margin-top: 3px;
}

.consent a {
  color: var(--blue-deep);
  font-weight: 700;
  text-decoration: underline;
}

.hidden-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  overflow: hidden;
}

.form-submit {
  width: 100%;
  padding: 15px;
}

/* Footer */
.site-footer {
  background: var(--navy);
  color: #cfe0f2;
  padding: 56px 0 28px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-brand {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--white);
  margin-bottom: 12px;
}

.footer-info {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.88rem;
}

.footer-links {
  display: flex;
  gap: 20px;
  list-style: none;
  font-size: 0.88rem;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8rem;
  color: #9db6d1;
}

.footer-escrow {
  display: flex;
  align-items: center;
}

/* Legal pages */
.legal-page {
  padding: 160px 0 96px;
}

.legal-page .container {
  max-width: 820px;
}

.legal-page h1 {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.legal-page .updated {
  color: var(--text-body);
  font-size: 0.88rem;
  margin-bottom: 40px;
}

.legal-page h2 {
  font-size: 1.15rem;
  margin: 36px 0 12px;
}

.legal-page p,
.legal-page li {
  font-size: 0.95rem;
  color: var(--text-body);
  margin-bottom: 8px;
}

.legal-page ul {
  padding-left: 20px;
  margin-bottom: 12px;
}

.legal-page table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.9rem;
}

.legal-page th,
.legal-page td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
}

.legal-page th {
  background: var(--blue-pale);
}

.back-link {
  display: inline-block;
  margin-top: 40px;
  font-weight: 700;
  color: var(--blue-deep);
}

/* Success page */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
  background: linear-gradient(160deg, var(--blue-pale) 0%, #ffffff 60%);
}

.success-card {
  max-width: 480px;
}

.success-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-light));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
}

.success-icon svg {
  width: 30px;
  height: 30px;
  stroke: var(--white);
}

.success-card h1 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.success-card p {
  margin-bottom: 28px;
}

/* Responsive */
@media (max-width: 860px) {
  .contact-wrap {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: none;
    gap: 18px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  section {
    padding: 72px 0;
  }

  .hero {
    padding: 140px 0 72px;
  }

  .about {
    padding-top: 72px;
  }

  .hero p.lead {
    white-space: normal;
    max-width: 480px;
    font-size: 1rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .about-text {
    font-size: 1.08rem;
    text-align: center;
  }
}