@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css");

:root {
  --text: #333333;
  --muted: #666666;
  --brand: #1A56DB;
  --brand-dark: #123f9f;
  --bg-soft: #F9FAFB;
  --white: #ffffff;
  --line: #e5e7eb;
  --navy: #172033;
  --shadow: 0 16px 42px rgba(23, 32, 51, 0.1);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: "Pretendard", "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", Arial, sans-serif;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: -0.02em;
  word-break: keep-all;
}

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

button,
input,
select,
textarea {
  font: inherit;
  letter-spacing: -0.02em;
}

svg {
  display: block;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 1000;
  transform: translateY(-140%);
  padding: 12px 16px;
  color: var(--white);
  background: var(--navy);
  border-radius: 6px;
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(229, 231, 235, 0.85);
  backdrop-filter: blur(14px);
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.site-header.is-scrolled {
  border-color: transparent;
  box-shadow: 0 8px 24px rgba(23, 32, 51, 0.08);
}

.header-inner {
  display: grid;
  grid-template-columns: auto 1fr minmax(240px, 320px) auto;
  align-items: center;
  gap: 20px;
  width: min(1280px, calc(100% - 32px));
  min-height: 78px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border-radius: 8px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: var(--white);
  background: var(--brand);
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 700;
}

.brand strong {
  display: block;
  color: var(--navy);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.2;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 500;
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: 4px;
}

.main-nav a {
  padding: 12px 14px;
  color: var(--text);
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: 0.3s ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--brand);
  background: #eff4ff;
}

.header-search {
  display: grid;
  grid-template-columns: 1fr 42px;
  align-items: center;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  overflow: hidden;
}

.header-search input {
  width: 100%;
  height: 100%;
  min-width: 0;
  padding: 0 4px 0 16px;
  color: var(--text);
  border: 0;
  outline: 0;
}

.header-search button {
  display: grid;
  place-items: center;
  height: 100%;
  color: var(--brand);
  background: transparent;
  border: 0;
  cursor: pointer;
}

.header-search svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.header-search:focus-within {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.12);
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.menu-button span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--navy);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 700;
  cursor: pointer;
  transition: 0.3s ease;
}

.btn:hover,
.quick-card:hover,
.info-card:hover,
.education-card:hover,
.board-card:hover,
.process-grid article:hover {
  transform: translateY(-4px);
}

.btn-primary {
  color: var(--white);
  background: var(--brand);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--brand-dark);
}

.btn-secondary {
  color: var(--brand);
  background: var(--white);
  border-color: rgba(255, 255, 255, 0.85);
}

.hero {
  position: relative;
  min-height: 680px;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background-image:
    linear-gradient(90deg, rgba(23, 32, 51, 0.95) 0%, rgba(23, 32, 51, 0.82) 44%, rgba(23, 32, 51, 0.18) 100%),
    url("hero-safety.png");
  background-position: center right;
  background-size: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(0deg, rgba(23, 32, 51, 0.36), rgba(23, 32, 51, 0) 46%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 120px);
}

.hero-layout {
  position: relative;
}

.hero-content {
  max-width: 720px;
  padding: 110px 0 130px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--brand);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #bfdbfe;
}

.hero h1 {
  margin: 0 0 24px;
  font-size: clamp(2.6rem, 5vw, 4.7rem);
  font-weight: 700;
  line-height: 1.12;
}

.hero p {
  max-width: 640px;
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.08rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.quick-section {
  position: relative;
  z-index: 2;
  margin-top: -54px;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.quick-card {
  display: block;
  min-height: 138px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: 0.3s ease;
}

.quick-card strong {
  display: block;
  margin-bottom: 10px;
  color: var(--brand);
  font-size: 1.05rem;
  font-weight: 700;
}

.quick-card span {
  display: block;
  color: var(--muted);
}

.section {
  padding: 100px 0;
}

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

.section-heading {
  max-width: 780px;
  margin-bottom: 48px;
}

.section-heading.centered {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-heading h2,
.contact-copy h2 {
  margin: 0 0 24px;
  color: var(--text);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.25;
}

.section-heading p,
.contact-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.info-card,
.education-card,
.board-card,
.process-grid article {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: 0.3s ease;
}

.info-card:hover,
.education-card:hover,
.board-card:hover,
.process-grid article:hover {
  box-shadow: var(--shadow);
}

.info-card {
  min-height: 250px;
  padding: 28px;
}

.card-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 22px;
  color: var(--brand);
  background: #eff4ff;
  border-radius: 8px;
  font-weight: 700;
}

h3 {
  margin: 0 0 14px;
  color: var(--text);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.35;
}

p {
  color: var(--muted);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
}

.education-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 24px;
}

.education-card {
  display: flex;
  min-height: 290px;
  flex-direction: column;
  justify-content: space-between;
  grid-column: span 2;
  padding: 28px;
}

.education-wide {
  grid-column: span 3;
}

.tag {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 18px;
  padding: 6px 12px;
  color: var(--brand);
  background: #eff4ff;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 700;
}

.education-card p {
  margin: 0 0 24px;
}

.education-card dl {
  display: grid;
  gap: 8px;
  margin: 0;
}

.education-card dl div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.education-card dt {
  color: var(--muted);
  font-weight: 500;
}

.education-card dd {
  margin: 0;
  color: var(--text);
  font-weight: 600;
}

.resource-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.board-card {
  overflow: hidden;
}

.board-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px;
  border-bottom: 1px solid var(--line);
}

.board-head h3 {
  margin: 0;
}

.board-head a {
  color: var(--brand);
  font-size: 0.92rem;
  font-weight: 700;
}

.board-card ul {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
}

.board-card li {
  display: grid;
  gap: 8px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
}

.board-card li:last-child {
  border-bottom: 0;
}

.board-card time,
.board-card span {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 500;
}

.board-card li a {
  color: var(--text);
  font-weight: 600;
}

.process-section {
  color: var(--white);
  background: var(--navy);
}

.process-section .section-heading h2,
.process-section .section-heading p {
  color: var(--white);
}

.process-section .section-heading p {
  opacity: 0.78;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
}

.process-grid article {
  min-height: 220px;
  padding: 24px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.14);
}

.process-grid strong {
  display: block;
  margin-bottom: 22px;
  color: #93c5fd;
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
}

.process-grid h3,
.process-grid p {
  color: var(--white);
}

.process-grid p {
  margin: 0;
  opacity: 0.76;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(280px, 420px) 1fr;
  gap: 60px;
  align-items: start;
}

.contact-copy ul {
  display: grid;
  gap: 12px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.contact-copy li {
  padding: 16px 18px;
  color: var(--text);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-weight: 600;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 32px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.form-field {
  display: grid;
  gap: 8px;
}

.form-field.full,
.contact-form .full {
  grid-column: 1 / -1;
}

.form-field label {
  color: var(--text);
  font-weight: 600;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  min-height: 48px;
  padding: 11px 14px;
  color: var(--text);
  background: var(--white);
  border: 1px solid #d1d5db;
  border-radius: 8px;
  outline: 0;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-field textarea {
  resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.12);
}

.agreement {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--muted);
}

.agreement input {
  width: 18px;
  height: 18px;
  margin-top: 4px;
  accent-color: var(--brand);
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: var(--brand);
  font-weight: 600;
}

.site-footer {
  padding: 46px 0 28px;
  color: rgba(255, 255, 255, 0.76);
  background: #111827;
}

.footer-layout {
  display: flex;
  justify-content: space-between;
  gap: 32px;
}

.site-footer strong {
  display: block;
  margin-bottom: 12px;
  color: var(--white);
  font-size: 1.1rem;
}

.site-footer p {
  max-width: 760px;
  margin: 5px 0;
  color: rgba(255, 255, 255, 0.76);
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 18px;
  min-width: 230px;
}

.site-footer a {
  color: var(--white);
  font-weight: 600;
}

.copyright {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.64);
  font-size: 0.92rem;
}

:focus-visible {
  outline: 3px solid rgba(26, 86, 219, 0.3);
  outline-offset: 3px;
}

@media (max-width: 1120px) {
  .header-inner {
    grid-template-columns: auto 1fr auto;
  }

  .main-nav {
    position: absolute;
    top: 78px;
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    padding: 10px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

  .main-nav.is-open {
    display: flex;
  }

  .header-search {
    justify-self: end;
    width: min(320px, 36vw);
  }

  .header-cta {
    display: none;
  }

  .menu-button {
    display: block;
  }

  .service-grid,
  .resource-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 840px) {
  .container {
    width: min(100% - 28px, 1200px);
  }

  .header-inner {
    width: min(100% - 24px, 1280px);
    gap: 12px;
  }

  .brand small,
  .header-search {
    display: none;
  }

  .hero {
    min-height: 620px;
    background-image:
      linear-gradient(180deg, rgba(23, 32, 51, 0.96) 0%, rgba(23, 32, 51, 0.84) 68%, rgba(23, 32, 51, 0.58) 100%),
      url("hero-safety.png");
    background-position: center bottom;
  }

  .hero-content {
    padding: 88px 0 110px;
  }

  .hero h1 {
    font-size: 2.55rem;
  }

  .quick-section {
    margin-top: -30px;
  }

  .quick-grid,
  .service-grid,
  .resource-columns,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 78px 0;
  }

  .section-heading h2,
  .contact-copy h2 {
    font-size: 2rem;
  }

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

  .education-card,
  .education-wide {
    grid-column: auto;
  }

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

  .contact-form {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .footer-layout {
    flex-direction: column;
  }

  .site-footer nav {
    justify-content: flex-start;
  }
}

@media (max-width: 520px) {
  .brand strong {
    font-size: 1rem;
  }

  .hero h1 {
    font-size: 2.1rem;
  }

  .hero-actions .btn {
    width: 100%;
  }
}