:root {
  --navy: #0f1424;
  --navy-2: #171d33;
  --gold: #d4af6a;
  --gold-light: #f0d9a8;
  --text: #1c1f2b;
  --text-muted: #6b7180;
  --bg: #ffffff;
  --bg-alt: #f7f6f2;
  --border: #e7e4db;
  --radius: 14px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Pretendard", "Apple SD Gothic Neo", "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

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

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

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

.logo {
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 1px;
  color: var(--navy);
}

.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  transition: color .2s;
}

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

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: transform .15s, box-shadow .15s, background .15s;
  cursor: pointer;
  border: none;
}

.btn-nav {
  background: var(--navy);
  color: #fff;
  padding: 10px 20px;
  font-size: 14px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  color: var(--navy);
  box-shadow: 0 8px 20px rgba(212,175,106,0.35);
}

.btn-primary:hover { transform: translateY(-2px); }

.btn-outline {
  border: 1.5px solid var(--navy);
  color: var(--navy);
}

.btn-outline:hover { background: var(--navy); color: #fff; }

.btn-wide { width: 100%; text-align: center; }

/* Hero */
.hero {
  background: radial-gradient(circle at 20% 20%, #1b2140, var(--navy) 60%);
  color: #fff;
  padding: 140px 0 120px;
  text-align: center;
}

.eyebrow, .section-eyebrow {
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 3px;
  font-size: 13px;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 24px;
}

.highlight { color: var(--gold-light); }

.hero-desc {
  font-size: 17px;
  color: #c7cbe0;
  margin-bottom: 40px;
}

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

.hero .btn-outline {
  border-color: rgba(255,255,255,0.5);
  color: #fff;
}

.hero .btn-outline:hover {
  background: #fff;
  color: var(--navy);
}

/* Sections */
.section {
  padding: 100px 0;
}

.section-alt { background: var(--bg-alt); }

.section-title {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 56px;
  color: var(--navy);
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: transform .2s, box-shadow .2s;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(15,20,36,0.08);
}

.card-icon {
  font-size: 14px;
  font-weight: 800;
  color: var(--gold);
  margin-bottom: 16px;
}

.card h3 {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--navy);
}

.card p {
  font-size: 14.5px;
  color: var(--text-muted);
}

/* Why grid */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.why-item {
  padding: 32px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.why-item h3 {
  color: var(--navy);
  margin-bottom: 12px;
  font-size: 18px;
}

.why-item p {
  color: var(--text-muted);
  font-size: 14.5px;
}

/* Process */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.process-step {
  text-align: center;
  padding: 24px;
}

.step-num {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--gold-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.process-step h3 {
  font-size: 16px;
  color: var(--navy);
  margin-bottom: 8px;
}

.process-step p {
  font-size: 14px;
  color: var(--text-muted);
}

/* Contact */
.section-contact {
  background: var(--bg-alt);
  text-align: center;
}

.contact-desc {
  color: var(--text-muted);
  margin-bottom: 40px;
}

.contact-form {
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  text-align: left;
}

.form-row {
  display: flex;
  gap: 14px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  font-family: inherit;
  background: #fff;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--gold);
}

.contact-form button { margin-top: 8px; }

.contact-alt {
  margin-top: 24px;
  color: var(--text-muted);
  font-size: 14px;
}

.contact-alt a { color: var(--navy); font-weight: 600; }

/* Footer */
.footer {
  background: var(--navy);
  color: #9aa0bd;
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer .logo { color: #fff; }

.footer p { font-size: 13px; }

/* Responsive */
@media (max-width: 860px) {
  .nav { display: none; }
  .hero h1 { font-size: 34px; }
  .cards, .why-grid, .process { grid-template-columns: 1fr 1fr; }
  .form-row { flex-direction: column; }
}

@media (max-width: 520px) {
  .hero { padding: 100px 0 80px; }
  .hero h1 { font-size: 28px; }
  .cards, .why-grid, .process { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}