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

:root {
  --bg: #f6f7fb;
  --text: #111827;
  --muted: #6b7280;
  --line: #e5e7eb;
  --primary: #2457ff;
  --primary-dark: #183db9;
  --card: #ffffff;
  --dark: #0d1321;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans KR", sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.7;
}

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

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.header {
  position: fixed;
  inset: 0 0 auto 0;
  height: 76px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(229, 231, 235, 0.8);
  z-index: 1000;
}

.nav-wrap {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.logo span {
  color: var(--primary);
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 14px;
  font-weight: 600;
}

.nav a {
  transition: color 0.2s ease;
}

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

.nav-contact {
  color: #fff !important;
  background: var(--text);
  padding: 11px 18px;
  border-radius: 999px;
}

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

.menu-btn span {
  width: 22px;
  height: 2px;
  background: var(--text);
  display: block;
  margin: 5px auto;
}

.hero {
  min-height: 820px;
  padding: 150px 0 90px;
  background:
    radial-gradient(circle at 85% 20%, rgba(36, 87, 255, 0.16), transparent 30%),
    linear-gradient(180deg, #ffffff 0%, #f7f8fc 100%);
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 70px;
}

.eyebrow {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  color: var(--primary);
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(44px, 6vw, 72px);
  line-height: 1.15;
  letter-spacing: -0.055em;
  margin-bottom: 26px;
}

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

.hero-desc {
  max-width: 610px;
  font-size: 18px;
  color: var(--muted);
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-bottom: 52px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 24px;
  border-radius: 12px;
  border: 0;
  cursor: pointer;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 14px 30px rgba(36, 87, 255, 0.22);
}

.primary:hover {
  background: var(--primary-dark);
}

.secondary {
  border: 1px solid var(--line);
  background: #fff;
}

.hero-stats {
  display: flex;
  gap: 34px;
}

.hero-stats div {
  display: flex;
  flex-direction: column;
}

.hero-stats strong {
  font-size: 20px;
}

.hero-stats span {
  color: var(--muted);
  font-size: 13px;
}

.hero-card {
  min-height: 500px;
  background: var(--dark);
  border-radius: 32px;
  color: #fff;
  padding: 34px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 35px 80px rgba(13, 19, 33, 0.22);
}

.hero-card::before {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  background: var(--primary);
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.8;
  right: -80px;
  top: 20px;
}

.hero-card-top {
  display: flex;
  justify-content: space-between;
  color: rgba(255,255,255,0.6);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  position: relative;
  z-index: 1;
}

.hero-card-content {
  position: absolute;
  left: 34px;
  bottom: 46px;
  z-index: 2;
}

.mini-label {
  color: rgba(255,255,255,0.65);
  margin-bottom: 6px;
  font-size: 13px;
}

.hero-card h2 {
  font-size: 56px;
  letter-spacing: -0.05em;
  margin-bottom: 10px;
}

.hero-card p {
  color: rgba(255,255,255,0.66);
}

.hero-card-circle {
  width: 230px;
  height: 230px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 50%;
  position: absolute;
  right: 40px;
  top: 120px;
}

.section {
  padding: 110px 0;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 48px;
}

.section-heading h2,
.about-copy h2,
.contact-info h2,
.cta h2 {
  font-size: clamp(36px, 4vw, 50px);
  line-height: 1.25;
  letter-spacing: -0.045em;
  margin-bottom: 20px;
}

.section-heading > p:last-child {
  color: var(--muted);
}

.services {
  background: #fff;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 34px;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(17,24,39,0.08);
}

.service-num {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  background: #eef2ff;
  color: var(--primary);
  border-radius: 12px;
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 28px;
}

.service-card h3 {
  font-size: 23px;
  margin-bottom: 14px;
}

.service-card p {
  color: var(--muted);
  font-size: 15px;
}

.service-card a {
  margin-top: auto;
  font-size: 14px;
  font-weight: 700;
}

.service-card a span {
  color: var(--primary);
}

.about {
  background: var(--bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  min-height: 500px;
  position: relative;
}

.about-box {
  position: absolute;
  border-radius: 28px;
}

.about-box.large {
  inset: 0 70px 70px 0;
  background:
    linear-gradient(135deg, rgba(36,87,255,0.95), rgba(64,111,255,0.65)),
    #2457ff;
  display: flex;
  align-items: flex-end;
  padding: 36px;
  color: #fff;
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.about-box.small {
  right: 0;
  bottom: 0;
  width: 230px;
  height: 190px;
  background: var(--dark);
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 30px;
  box-shadow: 0 25px 60px rgba(13,19,33,0.2);
}

.about-box.small strong {
  font-size: 36px;
}

.about-box.small span {
  color: rgba(255,255,255,0.6);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.about-copy > p:not(.eyebrow) {
  color: var(--muted);
  margin-bottom: 14px;
}

.check-list {
  list-style: none;
  margin-top: 30px;
  display: grid;
  gap: 13px;
}

.check-list li {
  position: relative;
  padding-left: 30px;
  font-weight: 600;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 900;
}

.cta {
  background: #fff;
  padding-top: 80px;
  padding-bottom: 80px;
}

.cta-box {
  border-radius: 30px;
  background: var(--primary);
  color: #fff;
  padding: 58px 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta .eyebrow {
  color: rgba(255,255,255,0.72);
}

.cta h2 {
  margin-bottom: 0;
}

.light {
  background: #fff;
  color: var(--text);
  min-width: 130px;
}

.contact {
  background: var(--bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 80px;
}

.contact-info > p:not(.eyebrow) {
  color: var(--muted);
}

.contact-list {
  margin-top: 42px;
  display: grid;
  gap: 18px;
}

.contact-list div {
  border-top: 1px solid var(--line);
  padding-top: 16px;
  display: flex;
  flex-direction: column;
}

.contact-list span {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.12em;
}

.contact-list strong {
  font-size: 17px;
}

.contact-form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 34px;
  display: grid;
  gap: 20px;
}

.contact-form label {
  font-size: 14px;
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  margin-top: 8px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  outline: none;
  background: #fff;
  transition: border 0.2s ease, box-shadow 0.2s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(36,87,255,0.08);
}

.contact-form textarea {
  resize: vertical;
}

.full {
  width: 100%;
}

.form-note {
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}

.footer {
  background: var(--dark);
  color: #fff;
  padding: 42px 0;
}

.footer-wrap {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}

.footer-logo {
  display: inline-block;
  margin-bottom: 5px;
}

.footer p {
  color: rgba(255,255,255,0.52);
  font-size: 13px;
}

@media (max-width: 900px) {
  .menu-btn {
    display: block;
  }

  .nav {
    display: none;
    position: absolute;
    top: 76px;
    left: 20px;
    right: 20px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 20px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    box-shadow: 0 20px 40px rgba(17,24,39,0.08);
  }

  .nav.open {
    display: flex;
  }

  .nav a {
    padding: 12px 10px;
  }

  .nav-contact {
    text-align: center;
    margin-top: 6px;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 46px;
  }

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

  .hero-card {
    min-height: 420px;
  }

  .about-grid,
  .contact-grid {
    gap: 48px;
  }

  .cta-box {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 28px, 1160px);
  }

  .header {
    height: 68px;
  }

  .nav {
    top: 68px;
    left: 14px;
    right: 14px;
  }

  .hero {
    padding: 120px 0 70px;
  }

  .hero h1 {
    font-size: 42px;
  }

  .hero-desc {
    font-size: 16px;
  }

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

  .hero-stats {
    gap: 18px;
    justify-content: space-between;
  }

  .hero-card {
    min-height: 360px;
    padding: 26px;
    border-radius: 24px;
  }

  .hero-card-content {
    left: 26px;
    bottom: 34px;
  }

  .hero-card h2 {
    font-size: 44px;
  }

  .section {
    padding: 82px 0;
  }

  .section-heading h2,
  .about-copy h2,
  .contact-info h2,
  .cta h2 {
    font-size: 34px;
  }

  .about-visual {
    min-height: 360px;
  }

  .about-box.large {
    inset: 0 40px 60px 0;
    font-size: 34px;
  }

  .about-box.small {
    width: 190px;
    height: 150px;
  }

  .cta {
    padding-top: 60px;
    padding-bottom: 60px;
  }

  .cta-box {
    padding: 38px 28px;
  }

  .contact-form {
    padding: 24px;
  }

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