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

:root {
  --primary-50: #eef4ff;
  --primary-100: #dfeaff;
  --primary-200: #bdd6ff;
  --primary-500: #0066ff;
  --primary-600: #0057d8;
  --primary-700: #0048b2;
  --primary-800: #0a3f8c;
  --primary-900: #0a2b66;
  --primary-950: #0a1a3a;
  --primary-1000: #071329;
  --accent-teal: #00b4cb;
  --neutral-0: #ffffff;
  --neutral-50: #f6f8fc;
  --neutral-100: #e5e7eb;
  --neutral-200: #d1d5db;
  --neutral-400: #6b7280;
  --neutral-500: #4b5563;
  --neutral-700: #374151;
  --neutral-900: #1f2937;
  --surface: linear-gradient(180deg, #f8fbff 0%, #f2f6fc 100%);
  --surface-soft: linear-gradient(180deg, rgba(223, 234, 255, 0.72) 0%, rgba(248, 251, 255, 0.92) 100%);
  --section-tint: linear-gradient(180deg, rgba(223, 234, 255, 0.34) 0%, rgba(255, 255, 255, 0.96) 100%);
  --shadow-sm: 0 14px 30px rgba(10, 26, 58, 0.08);
  --shadow-md: 0 24px 48px rgba(10, 26, 58, 0.12);
  --shadow-lg: 0 32px 72px rgba(10, 26, 58, 0.22);
  --radius-sm: 16px;
  --radius-md: 24px;
  --radius-lg: 32px;
  --container-max: 1180px;
  --container-pad: 20px;
  --header-height: 80px;
  --transition-base: 220ms ease;
  --transition-slow: 620ms cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--primary-1000);
  background: var(--surface);
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  word-break: keep-all;
}

body.menu-open {
  overflow: hidden;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

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

h1,
h2,
h3,
p,
span,
li {
  text-wrap: pretty;
}

h1,
h2 {
  text-wrap: balance;
}

.container {
  width: min(var(--container-max), calc(100% - (var(--container-pad) * 2)));
  margin: 0 auto;
}

.section-shell {
  position: relative;
}

.section-shell--tint {
  background: var(--section-tint);
}

.section-shell--soft {
  background: var(--surface-soft);
}

.section {
  padding: clamp(76px, 9vw, 120px) 0;
}

.reveal {
  opacity: 1;
  transform: none;
}

.motion-ready .reveal {
  opacity: 0;
  transform: translateY(36px);
  transition:
    opacity var(--transition-slow),
    transform var(--transition-slow);
}

.motion-ready .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 40;
  min-height: var(--header-height);
  transition:
    background var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18, 42, 86, 0.22) 0%, rgba(18, 42, 86, 0) 100%);
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 1px 0 rgba(191, 213, 252, 0.7), 0 14px 38px rgba(18, 42, 86, 0.08);
  backdrop-filter: blur(18px);
}

.site-header.is-scrolled::before {
  opacity: 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: 24px;
}

.brand {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  flex: 0 1 auto;
  max-width: 100%;
  color: var(--neutral-0);
}

.brand-logo {
  width: auto;
  height: 40px;
}

.site-header.is-scrolled .brand,
.site-header.is-scrolled .nav,
.site-header.is-scrolled .nav-toggle {
  color: var(--primary-1000);
}

.nav {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 30px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.95rem;
  font-weight: 600;
}

.nav a {
  position: relative;
  transition: color var(--transition-base);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--primary-500);
}

.nav a:hover::after,
.nav a:focus-visible::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  color: inherit;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.08);
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  border-radius: 999px;
  background: currentColor;
}

.hero {
  position: relative;
  display: grid;
  align-items: center;
  min-height: min(100svh, 980px);
  padding: calc(var(--header-height) + 56px) 0 88px;
  overflow: hidden;
}

.hero-image,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: center center;
  transform: scale(1.03);
}

.hero-shade {
  background:
    linear-gradient(109deg, rgba(18, 42, 86, 0.94) 0%, rgba(18, 42, 86, 0.78) 35%, rgba(18, 42, 86, 0.24) 76%),
    linear-gradient(180deg, rgba(6, 23, 53, 0.14) 0%, rgba(6, 23, 53, 0.42) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  color: var(--neutral-0);
}

.hero-content > * {
  max-width: 760px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  color: var(--accent-teal);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: currentColor;
}

.hero .eyebrow {
  color: var(--primary-200);
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(3.55rem, 7vw, 6.5rem);
  line-height: 0.98;
}

h2 {
  font-size: clamp(2.15rem, 4vw, 3.6rem);
  line-height: 1.14;
}

h3 {
  font-size: clamp(1.35rem, 2vw, 1.65rem);
  line-height: 1.3;
}

.hero-kicker {
  margin: 24px 0 0;
  color: var(--primary-50);
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 700;
  line-height: 1.5;
}

.hero-copy {
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1rem, 1.7vw, 1.24rem);
  line-height: 1.8;
}

.desktop-break {
  display: inline;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    background var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base);
  cursor: pointer;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button.primary {
  color: var(--neutral-0);
  background: linear-gradient(180deg, var(--primary-500) 0%, var(--primary-600) 100%);
  box-shadow: 0 18px 36px rgba(50, 121, 246, 0.26);
}

.button.primary:hover,
.button.primary:focus-visible {
  background: linear-gradient(180deg, var(--primary-600) 0%, var(--primary-700) 100%);
  box-shadow: 0 22px 42px rgba(50, 121, 246, 0.3);
}

.button.secondary {
  color: var(--neutral-0);
  border-color: rgba(255, 255, 255, 0.26);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
}

.button.secondary:hover,
.button.secondary:focus-visible {
  border-color: rgba(255, 255, 255, 0.46);
  background: rgba(255, 255, 255, 0.14);
}

.metrics-shell {
  margin-top: -24px;
  z-index: 2;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.metric {
  padding: 28px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(14px);
}

.metric strong {
  display: block;
  color: var(--primary-600);
  font-size: clamp(2rem, 4vw, 2.85rem);
  line-height: 1;
}

.metric span {
  display: block;
  margin-top: 12px;
  color: var(--neutral-500);
  font-weight: 600;
}

.section-heading {
  max-width: 760px;
}

.section-copy,
.intro > p,
.case-copy p:not(.eyebrow),
.contact-copy p:not(.eyebrow) {
  margin: 0;
  color: var(--neutral-500);
  font-size: 1.08rem;
  line-height: 1.85;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(280px, 0.98fr);
  gap: clamp(30px, 6vw, 88px);
  align-items: end;
}

.program-grid,
.reference-grid,
.steps {
  display: grid;
  gap: 22px;
  margin-top: 38px;
}

.program-grid,
.reference-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.program-card,
.reference-card,
.steps li {
  position: relative;
  min-height: 100%;
  padding: 28px;
  border-radius: var(--radius-md);
  background: var(--neutral-0);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    background var(--transition-base);
}

.program-card:hover,
.reference-card:hover,
.steps li:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.program-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(224, 235, 254, 0.16), rgba(255, 255, 255, 0));
  pointer-events: none;
}

.program-card.accent {
  background: linear-gradient(160deg, var(--primary-1000) 0%, var(--primary-950) 55%, var(--primary-900) 100%);
  box-shadow: var(--shadow-lg);
}

.card-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  min-height: 34px;
  padding: 0 12px;
  color: var(--primary-700);
  border-radius: 999px;
  background: var(--primary-100);
  font-size: 0.86rem;
  font-weight: 800;
}

.program-card.accent .card-index {
  color: var(--neutral-0);
  background: rgba(255, 255, 255, 0.14);
}

.program-card h3,
.reference-card h3 {
  margin-top: 18px;
}

.program-card p,
.reference-card p {
  margin: 14px 0 0;
  color: var(--neutral-500);
}

.program-card ul {
  display: grid;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.program-card li {
  position: relative;
  padding-left: 18px;
  color: var(--primary-950);
  font-weight: 700;
}

.program-card li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--primary-500);
  transform: translateY(-50%);
}

.program-card.accent,
.program-card.accent p,
.program-card.accent li {
  color: rgba(255, 255, 255, 0.92);
}

.program-card.accent li::before {
  background: var(--primary-200);
}

.steps {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding: 0;
  list-style: none;
  counter-reset: method;
}

.steps li {
  counter-increment: method;
}

.steps li::before {
  content: counter(method, decimal-leading-zero);
  display: inline-flex;
  min-width: 48px;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--primary-600);
  border-radius: 16px;
  background: var(--primary-100);
  font-size: 0.92rem;
  font-weight: 800;
}

.steps span {
  display: block;
  color: var(--primary-1000);
  font-size: 1.35rem;
  font-weight: 800;
}

.steps p {
  margin: 14px 0 0;
  color: var(--neutral-500);
}

.results {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(30px, 5vw, 76px);
  align-items: center;
}

.result-panel {
  display: grid;
  gap: 24px;
  padding: clamp(28px, 4vw, 42px);
  color: var(--neutral-0);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at top right, rgba(191, 213, 252, 0.24), transparent 32%),
    linear-gradient(160deg, var(--primary-1000) 0%, var(--primary-950) 58%, var(--primary-900) 100%);
  box-shadow: var(--shadow-lg);
}

.label {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 12px;
  color: var(--primary-50);
  border-radius: 999px;
  background: rgba(224, 235, 254, 0.12);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.result-panel strong {
  display: block;
  margin-top: 14px;
  font-size: clamp(2rem, 4vw, 2.85rem);
  line-height: 1.14;
  letter-spacing: -0.035em;
}

.result-panel p {
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
}

.progress-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.progress-list span {
  min-height: 108px;
  padding: 18px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(224, 235, 254, 0.14);
  font-weight: 600;
}

.progress-list b {
  display: block;
  margin-bottom: 8px;
  color: var(--primary-200);
  font-size: 1.45rem;
  line-height: 1.1;
}

.references .section-heading {
  max-width: 820px;
}

.reference-card span {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 12px;
  color: var(--primary-700);
  border-radius: 999px;
  background: var(--primary-100);
  font-size: 0.82rem;
  font-weight: 700;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(320px, 1.14fr);
  gap: clamp(30px, 6vw, 84px);
  align-items: start;
}

.contact-copy {
  max-width: 540px;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: clamp(24px, 4vw, 34px);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(16px);
}

label {
  display: grid;
  gap: 8px;
  color: var(--neutral-700);
  font-size: 0.92rem;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  min-height: 50px;
  padding: 13px 15px;
  color: var(--primary-1000);
  border: 1px solid rgba(191, 213, 252, 0.86);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.96);
  outline: none;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background var(--transition-base);
}

textarea {
  min-height: 146px;
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: var(--neutral-400);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 4px rgba(50, 121, 246, 0.12);
  background: var(--neutral-0);
}

.wide {
  grid-column: 1 / -1;
}

.form-note {
  grid-column: 1 / -1;
  min-height: 24px;
  margin: 0;
  color: var(--primary-800);
  font-weight: 700;
}

.footer {
  color: rgba(255, 255, 255, 0.8);
  background: linear-gradient(180deg, var(--primary-1000) 0%, #0d2348 100%);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  padding: 24px 0 28px;
}

.footer span:first-child {
  color: var(--neutral-0);
  font-weight: 800;
  letter-spacing: 0.04em;
}

.footer-biz {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  padding-top: 16px;
  margin-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-biz a {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: underline;
}

.button:focus-visible,
.nav a:focus-visible,
.brand:focus-visible,
.nav-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(50, 121, 246, 0.18);
}

@media (max-width: 1080px) {
  :root {
    --container-pad: 32px;
  }

  .program-grid,
  .reference-grid,
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .results,
  .contact,
  .intro {
    grid-template-columns: 1fr;
  }

  .section-heading,
  .contact-copy {
    max-width: 100%;
  }
}

@media (max-width: 920px) {
  .nav-toggle {
    position: relative;
    z-index: 2;
    display: block;
  }

  .nav {
    position: absolute;
    top: calc(var(--header-height) - 8px);
    right: var(--container-pad);
    display: none;
    width: min(320px, calc(100vw - (var(--container-pad) * 2)));
    padding: 18px;
    color: var(--primary-1000);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
  }

  .nav.is-open {
    display: grid;
    gap: 16px;
  }

  .nav a::after {
    bottom: -4px;
  }

  .nav-toggle {
    border-color: rgba(255, 255, 255, 0.3);
  }

  .site-header.is-scrolled .nav-toggle {
    border-color: rgba(191, 213, 252, 0.92);
    background: rgba(235, 242, 254, 0.72);
  }
}

@media (max-width: 720px) {
  :root {
    --container-pad: 20px;
    --header-height: 72px;
  }

  .hero {
    min-height: auto;
    padding: calc(var(--header-height) + 44px) 0 68px;
  }

  .brand {
    max-width: 132px;
  }

  .brand-logo {
    height: 34px;
  }

  .hero-shade {
    background:
      linear-gradient(180deg, rgba(18, 42, 86, 0.82) 0%, rgba(18, 42, 86, 0.72) 52%, rgba(18, 42, 86, 0.48) 100%),
      linear-gradient(180deg, rgba(6, 23, 53, 0.14) 0%, rgba(6, 23, 53, 0.4) 100%);
  }

  .hero-actions,
  .progress-list,
  .metrics-grid,
  .program-grid,
  .reference-grid,
  .steps,
  .contact-form {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .desktop-break {
    display: none;
  }

  .metric,
  .program-card,
  .reference-card,
  .steps li {
    padding: 24px;
  }

  .footer-inner {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .motion-ready .reveal {
    opacity: 1;
    transform: none;
  }
}

/* Footer 링크 */
.footer-links {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 12px;
  margin-top: 4px;
}

.footer-link-btn {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.78rem;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  font-family: inherit;
  transition: color 0.2s;
}

.footer-link-btn:hover {
  color: rgba(255, 255, 255, 0.9);
}

.footer-link-divider {
  color: rgba(255, 255, 255, 0.25);
  font-size: 0.78rem;
}

/* 모달 */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 9999;
  justify-content: center;
  align-items: center;
  padding: 24px;
}

.modal-overlay.is-open {
  display: flex;
}

.modal-box {
  background: #fff;
  border-radius: 16px;
  width: 100%;
  max-width: 680px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 32px 80px rgba(0,0,0,0.25);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 28px 16px;
  border-bottom: 1px solid #e5e7eb;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #0a1a3a;
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: #6b7280;
  padding: 4px 8px;
  border-radius: 8px;
  transition: background 0.2s;
}

.modal-close:hover {
  background: #f3f4f6;
}

.modal-body {
  padding: 24px 28px;
  overflow-y: auto;
  font-size: 0.9rem;
  line-height: 1.75;
  color: #374151;
}

.modal-body h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #0a1a3a;
  margin: 20px 0 8px;
}

.modal-body h3:first-child {
  margin-top: 0;
}

.modal-body ul {
  padding-left: 20px;
  margin: 6px 0;
}

.modal-body li {
  margin-bottom: 4px;
}

.modal-body p {
  margin: 6px 0;
}

.modal-date {
  margin-top: 20px !important;
  color: #9ca3af;
  font-size: 0.82rem;
}