:root {
  --background: #f6f7fb;
  --surface: #ffffff;
  --primary: #1f54ff;
  --primary-dark: #173fcc;
  --text-strong: #111826;
  --text-body: #3e4655;
  --text-light: #6c7486;
  --border: #d9dce6;
  --radius-large: 24px;
  --radius-medium: 16px;
  --radius-small: 12px;
  --shadow-soft: 0 20px 45px rgba(17, 24, 38, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Pretendard", "Noto Sans KR", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-body);
  background: var(--background);
  line-height: 1.5;
}

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

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

.hero {
  background: linear-gradient(135deg, rgba(31, 84, 255, 0.08), rgba(23, 63, 204, 0.08));
  padding: 96px 24px 72px;
}

.hero-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: flex-start;
}

.hero-logo {
  width: 140px;
  height: auto;
}

.hero-kicker {
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  margin: 0;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.25rem, 4vw, 3.4rem);
  color: var(--text-strong);
  line-height: 1.2;
}

.hero-description {
  margin: 0;
  font-size: 1.125rem;
  color: var(--text-body);
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  border: 1px solid transparent;
}

.button.primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 30px rgba(31, 84, 255, 0.25);
}

.button.primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.button.secondary {
  background: #fff;
  color: var(--primary);
  border-color: rgba(31, 84, 255, 0.2);
}

.button.secondary:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
}

main {
  display: flex;
  flex-direction: column;
  gap: 72px;
  padding: 72px 24px 96px;
}

.section {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.section.light {
  background: rgba(255, 255, 255, 0.8);
  padding: 60px;
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-soft);
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 720px;
}

.section-header h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  color: var(--text-strong);
}

.section-header p {
  margin: 0;
  color: var(--text-light);
  font-size: 1.05rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.card {
  background: var(--surface);
  padding: 32px;
  border-radius: var(--radius-large);
  border: 1px solid rgba(17, 24, 38, 0.04);
  box-shadow: 0 12px 30px rgba(17, 24, 38, 0.05);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card h3 {
  margin: 0;
  font-size: 1.5rem;
  color: var(--text-strong);
}

.card p {
  margin: 0;
  color: var(--text-body);
}

.card .tag {
  display: inline-flex;
  align-self: flex-start;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(31, 84, 255, 0.12);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
}

.card-link {
  margin-top: auto;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.card-link::after {
  content: '→';
  display: inline-block;
  transition: transform 0.2s ease;
}

.card-link:hover::after {
  transform: translateX(4px);
}

.card.upcoming {
  background: rgba(31, 84, 255, 0.08);
  border: 1px dashed rgba(31, 84, 255, 0.4);
}

.card .coming-soon {
  font-weight: 600;
  color: var(--primary);
}

.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.pillar {
  background: #fff;
  padding: 28px;
  border-radius: var(--radius-medium);
  border: 1px solid rgba(17, 24, 38, 0.06);
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 12px 28px rgba(17, 24, 38, 0.05);
}

.pillar h3 {
  margin: 0;
  color: var(--text-strong);
  font-size: 1.25rem;
}

.pillar p {
  margin: 0;
}

.cta-box {
  background: var(--primary);
  color: #fff;
  padding: 60px;
  border-radius: var(--radius-large);
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: flex-start;
  box-shadow: 0 25px 45px rgba(31, 84, 255, 0.35);
}

.cta-box h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 2.8rem);
}

.cta-box p {
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
}

.cta-box .button {
  background: #fff;
  color: var(--primary);
  box-shadow: none;
}

.cta-box .button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.footer {
  background: #0f172a;
  color: rgba(255, 255, 255, 0.76);
  padding: 48px 24px;
}

.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-logo {
  width: 120px;
  filter: brightness(0) invert(1);
}

.footer-meta {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 768px) {
  .hero {
    padding-top: 72px;
  }

  .section.light {
    padding: 36px;
  }

  .cta-box {
    padding: 40px;
  }
}

@media (max-width: 540px) {
  .hero-logo {
    width: 110px;
  }

  .hero-actions {
    width: 100%;
  }

  .button {
    width: 100%;
  }

  .section.light {
    padding: 28px;
  }

  .cta-box {
    padding: 32px;
  }
}