:root {
  --blue-900: #0b1f4d;
  --blue-800: #12377f;
  --blue-700: #1d4ed8;
  --blue-600: #2563eb;
  --blue-100: #dbeafe;
  --blue-50: #eff6ff;
  --text: #111827;
  --muted: #4b5563;
  --line: rgba(148, 163, 184, .35);
  --card: rgba(255, 255, 255, .86);
  --shadow: 0 30px 80px rgba(15, 23, 42, .18);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", "Malgun Gothic", Arial, sans-serif;
  color: var(--text);
  overflow-x: hidden;
  min-height: 100%;
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 78% 32%, rgba(251, 191, 36, .20), transparent 22%),
    radial-gradient(circle at 18% 18%, rgba(96, 165, 250, .45), transparent 30%),
    linear-gradient(180deg, #cfe8ff 0%, #f8fbff 56%, #eef6ff 100%);
}

.page-bg::before {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 48%;
  background:
    linear-gradient(135deg, transparent 0 30%, rgba(76, 123, 180, .35) 30% 31%, transparent 31%),
    linear-gradient(160deg, transparent 0 42%, rgba(42, 91, 151, .28) 42% 43%, transparent 43%),
    linear-gradient(14deg, #9cc4ee 0 15%, transparent 15%),
    linear-gradient(165deg, transparent 0 53%, #b7d5f4 53% 67%, transparent 67%),
    linear-gradient(8deg, #d7e9fb 0 42%, #f7fbff 42% 100%);
  opacity: .95;
  clip-path: polygon(0 38%, 10% 32%, 19% 42%, 32% 25%, 43% 45%, 54% 30%, 66% 43%, 79% 19%, 90% 39%, 100% 30%, 100% 100%, 0 100%);
}

.page-bg::after {
  content: "";
  position: absolute;
  inset: 67% -10% 0;
  background: linear-gradient(180deg, rgba(255,255,255,.72), rgba(255,255,255,.36));
  border-top: 1px solid rgba(255,255,255,.85);
  transform: perspective(900px) rotateX(58deg);
  transform-origin: top;
}

.site-header {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 28px 0 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--blue-900);
  text-decoration: none;
}
.brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--blue-600), #60a5fa);
  color: #fff;
  font-weight: 900;
  font-size: 28px;
  line-height: 1;
  box-shadow: 0 12px 28px rgba(37, 99, 235, .28);
}
.brand-text strong {
  display: block;
  font-size: 28px;
  letter-spacing: -.04em;
}
.brand-text small {
  display: block;
  margin-top: 2px;
  color: #334155;
  font-size: 13px;
}

.main {
  width: min(1180px, calc(100% - 48px));
  margin: 72px auto 0;
  display: grid;
  gap: 64px;
}

.notice-card {
  width: min(620px, 100%);
  margin: 0 auto;
  padding: 44px 48px 46px;
  background: var(--card);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 30px;
  box-shadow: var(--shadow);
  text-align: center;
}

.illustration {
  width: 210px;
  margin: 0 auto 12px;
}
.illustration svg { width: 100%; height: auto; display: block; }

.eyebrow {
  margin: 0 0 6px;
  color: var(--blue-700);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: 12px;
}

h1 {
  margin: 0;
  color: #071b46;
  font-size: clamp(38px, 6vw, 58px);
  letter-spacing: -.07em;
  line-height: 1.05;
}

.lead {
  margin: 14px 0 0;
  color: var(--blue-700);
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 800;
  letter-spacing: -.04em;
}

.divider {
  height: 1px;
  width: 100%;
  margin: 30px 0;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}

.message {
  margin: 0;
  color: #374151;
  font-size: 17px;
  line-height: 1.85;
  letter-spacing: -.03em;
}

.values {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: 22px 0 0;
  color: #0f2a5f;
}

.values article {
  min-height: 150px;
  padding: 0 26px;
  text-align: center;
  border-right: 1px solid rgba(30, 64, 175, .16);
}
.values article:last-child { border-right: 0; }
.values h2 {
  margin: 14px 0 8px;
  color: var(--blue-800);
  font-size: 17px;
  letter-spacing: -.04em;
}
.values p {
  margin: 0;
  color: #334155;
  font-size: 14px;
  line-height: 1.65;
}

.icon {
  width: 54px;
  height: 54px;
  margin: 0 auto;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255,255,255,.58);
  border: 1px solid rgba(255,255,255,.88);
  box-shadow: 0 12px 30px rgba(59, 130, 246, .14);
  position: relative;
}
.icon::before {
  content: "";
  width: 24px;
  height: 24px;
  display: block;
  background: var(--blue-600);
  mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
}
.shield::before { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2 4 5v6c0 5 3.4 9.7 8 11 4.6-1.3 8-6 8-11V5l-8-3Zm0 2.2 6 2.25V11c0 3.9-2.45 7.65-6 8.85C8.45 18.65 6 14.9 6 11V6.45l6-2.25Z'/%3E%3C/svg%3E"); }
.rocket::before { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2c3.3.2 6 2.9 6.2 6.2.2 3.2-1.3 6.6-4.3 9.6l-.8.8-3.7-3.7-.6.6H6.5v-2.3l.6-.6-3.7-3.7.8-.8C7.2 3.8 9 2.2 12 2Zm1 3.1c-1.5 0-2.9.8-5.8 3.7l5 5C15.1 11 16 9.4 16 7.8c0-1.4-1.4-2.7-3-2.7Zm-7.8 9.7 4 4L7 21H3l2.2-6.2Z'/%3E%3C/svg%3E"); }
.lock::before { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M17 9h1a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2v-8a2 2 0 0 1 2-2h1V7a5 5 0 0 1 10 0v2Zm-8 0h6V7a3 3 0 0 0-6 0v2Zm3 4a2 2 0 0 0-1 3.73V18h2v-1.27A2 2 0 0 0 12 13Z'/%3E%3C/svg%3E"); }
.users::before { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 11a4 4 0 1 1 0-8 4 4 0 0 1 0 8Zm0 2c3.3 0 6 1.7 6 3.8V20H3v-3.2C3 14.7 5.7 13 9 13Zm7.5-.5c2.5 0 4.5 1.3 4.5 3V19h-4v-2.2c0-1.6-1-3-2.5-4 .6-.2 1.3-.3 2-.3Zm0-1.5a3.5 3.5 0 1 1 0-7 3.5 3.5 0 0 1 0 7Z'/%3E%3C/svg%3E"); }

.site-footer {
  width: min(1180px, calc(100% - 48px));
  margin: 70px auto 24px;
  text-align: center;
  color: #475569;
  font-size: 13px;
}

@media (max-width: 820px) {
  .site-header, .main, .site-footer { width: min(100% - 32px, 1180px); }
  .main { margin-top: 42px; gap: 42px; }
  .notice-card { padding: 32px 24px; border-radius: 24px; }
  .values { grid-template-columns: 1fr 1fr; row-gap: 30px; }
  .values article:nth-child(2) { border-right: 0; }
}

@media (max-width: 520px) {
  .brand-mark { width: 42px; height: 42px; font-size: 24px; }
  .brand-text strong { font-size: 24px; }
  .values { grid-template-columns: 1fr; }
  .values article { border-right: 0; border-bottom: 1px solid rgba(30, 64, 175, .12); padding-bottom: 24px; }
  .values article:last-child { border-bottom: 0; }
}