@font-face {
  font-family: 'Lota Grotesque';
  src: url('fonts/LotaGrotesque-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap
}

@font-face {
  font-family: 'Lota Grotesque';
  src: url('fonts/LotaGrotesque-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap
}

@font-face {
  font-family: 'Lota Grotesque';
  src: url('fonts/LotaGrotesque-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap
}

@font-face {
  font-family: 'Lota Grotesque';
  src: url('fonts/LotaGrotesque-Black.woff2') format('woff2');
  font-weight: 900;
  font-style: normal;
  font-display: swap
}

:root {
  --navy: #0C2A68;
  --navy-deep: #16245E;
  --royal: #0058F7;
  --royal-bright: #3D65EC;
  --light: #F3F6FB;
  --ink: #1A1F2E;
  --card-text: rgba(255, 255, 255, .45);
}

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

html {
  scroll-behavior: smooth
}

body {
  font-family: 'Lota Grotesque', 'Noto Sans KR', sans-serif;
  background: var(--light);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container {
  max-width: 1350px;
  margin: 0 auto;
  padding: 0 48px
}

/* ============ HERO ============ */
.hero {
  background: var(--navy);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}

.hero-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 18px 48px 0;
}

.logo {
  font-weight: 900;
  font-size: 34px;
  letter-spacing: -1px;
  color: var(--royal);
  line-height: .85;
  text-transform: uppercase;
  position: relative;
  user-select: none;
}


.btn-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #fff;
  background: transparent;
  border: 2px solid #1C5BEF;
  border-radius: 999px;
  padding: 11px 24px;
  text-decoration: none;
  cursor: pointer;
  transition: background .3s, color .3s;
}

.btn-pill:hover {
  background: #fff;
  color: var(--navy)
}

.hero-nav .btn-pill {
  position: absolute;
  right: 48px;
  top: 32px
}

.hero-center {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 24px 80px;
}

.hero-title {
  font-weight: 800;
  font-size: clamp(44px, 7.4vw, 96px);
  line-height: 1.02;
  letter-spacing: -.01em;
  text-transform: uppercase;
  color: var(--royal);
}

.hello-word {
  display: block;
  color: #fff;
  font-family: 'Lota Grotesque', 'Noto Sans KR', 'Noto Sans JP', sans-serif;
  min-height: 1.05em;
  opacity: 1;
  transition: opacity .2s ease, transform .2s ease;
}

.hello-word.is-out {
  opacity: 0;
  transform: translateY(14px)
}

.learn-more {
  margin-top: 56px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  text-decoration: none;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.learn-more .circle {
  width: 44px;
  height: 44px;
  border: 2px solid #0058F7;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .3s;
}

.learn-more:hover .circle {
  transform: translateY(4px)
}

.learn-more svg {
  width: 12px;
  height: 12px;
  stroke: #fff
}

/* ============ ABOUT ============ */
.about {
  padding: 150px 0 170px;
  background: var(--light)
}

.about-lede {
  font-size: clamp(25px, 2.9vw, 45px);
  line-height: 1.2;
  font-weight: 500;
  letter-spacing: -.01em;
  /* max-width: 960px; */
  color: var(--ink);
}

button:focus {
  outline: none;
}

.about-lede strong {
  color: var(--royal);
  font-weight: 800
}

.about-sub {
  margin-top: 34px;
  max-width: 600px;
  font-size: 20px;
  line-height: 1.25;
  color: #3a4050;
}

/* ============ SERVICES (scroll animation) ============ */
.services {
  background: var(--light)
}

.services-track {
  height: 400vh;
  position: relative
}

.services-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.tag-pill {
  display: inline-block;
  background: var(--royal);
  color: #fff;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 8px 20px;
}

.services-head {
  text-align: center;
  margin-bottom: 48px
}

.services-head h2 {
  margin-top: 16px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .02em;
  text-transform: uppercase;
  color: var(--navy-deep);
}

.services-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.service-item {
  font-weight: 800;
  font-size: clamp(30px, 4.4vw, 65px);
  line-height: 1.08;
  text-transform: uppercase;
  letter-spacing: -.01em;
  color: var(--royal);
  opacity: .07;
  transform: scale(.92);
  transition: opacity .35s ease, transform .35s ease, color .35s ease;
  white-space: nowrap;
}

.service-item.is-near {
  opacity: .16;
  transform: scale(.96)
}

.service-item.is-active {
  opacity: 1;
  transform: scale(1);
  color: var(--royal)
}

/* ============ INTRODUCE ============ */
.introduce {
  padding: 60px 0 170px;
  background: var(--light)
}

.introduce-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 20px;
  align-items: center;
}

.intro-title {
  font-weight: 800;
  font-size: clamp(38px, 4.6vw, 70px);
  line-height: 1.12;
  letter-spacing: -.01em;
  text-transform: uppercase;
  color: var(--royal);
}

.intro-title .row {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: nowrap
}

.intro-img {
  height: .92em;
  border-radius: 10px;
  object-fit: cover;
  display: inline-block;
}

.intro-img.wide {
  width: 5.2em
}

.intro-img.med {
  width: 2.6em
}

.intro-copy p {
  font-size: 22px;
  line-height: 1.5;
  color: #2a3040;
  font-weight: 500;
}

.intro-copy p+p {
  margin-top: 28px
}

/* ============ APPROACH (card stack) ============ */
.approach {
  padding: 40px 0 140px;
  background: var(--light)
}

.approach-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 72px;
  align-items: start;
}

.approach-left {
  position: sticky;
  top: 120px
}

.approach-left h2 {
  margin-top: 18px;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: .02em;
  text-transform: uppercase;
  color: var(--navy-deep);
}

.approach-left p {
  margin-top: 20px;
  font-size: 18px;
  line-height: 1.5;
  color: #000;
  max-width: 400px;
}

.cards-stack {
  display: flex;
  flex-direction: column;
  gap: 36px
}

.card {
  position: sticky;
  top: 110px;
  border-radius: 10px;
  padding: 35px;
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 48px;
  align-items: center;
  min-height: 330px;
}

.card:nth-child(1) {
  top: 100px
}

.card:nth-child(1) .card-num {
  border: 2px solid #0058F7;
}

.card:nth-child(3) p {
  color: #3870A8
}

.card:nth-child(3) .card-num {
  border: 2px solid #0058F7;
}

.card:nth-child(1) p {
  color: #3870A8
}

.card:nth-child(2) p {
  color: #7AA2FF
}

.card:nth-child(2) .card-num {
  border: 2px solid #0C2A68;
}

.card:nth-child(4) p {
  color: #7AA2FF
}

.card:nth-child(4) .card-num {
  border: 2px solid #0C2A68;
}

.card:nth-child(2) {
  top: 120px
}

.card:nth-child(3) {
  top: 140px
}

.card:nth-child(4) {
  top: 160px
}

.card-navy {
  background: #0C2A68
}

.card-royal {
  background: #1C5BEF
}

.card-icon svg {
  width: 100%;
  max-width: 210px;
  height: auto;
  display: block
}

.card-navy .card-icon svg {
  stroke: #3D65EC
}

.card-royal .card-icon svg {
  stroke: #16245E
}

.card-num {
  width: 38px;
  height: 38px;
  border: 1.5px solid rgba(255, 255, 255, .7);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 18px;
}

.card-body h3 {
  color: #fff;
  font-size: 23px;
  font-weight: 800;
  letter-spacing: -.01em;
  margin-bottom: 14px;
}

.card-body p {
  font-size: 18px;
  line-height: 1.4;
  max-width: 460px;
}

/* ============ FOOTER ============ */
.marquee {
  background: var(--royal);
  overflow: hidden;
  padding: 14px 0;
  white-space: nowrap;
}

.marquee-inner {
  display: inline-flex;
  animation: marquee 28s linear infinite;
}

.marquee-inner span {
  color: #fff;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 0 26px;
  display: inline-flex;
  align-items: center;
  gap: 52px;
}

.marquee-inner span::after {
  content: '—';
  opacity: .7;
  font-weight: 400
}

@keyframes marquee {
  from {
    transform: translateX(0)
  }

  to {
    transform: translateX(-50%)
  }
}

.footer {
  background: var(--navy);
  padding: 50px 0 44px;
  text-align: center;
}

.footer-title {
  font-weight: 800;
  font-size: clamp(48px, 8vw, 108px);
  line-height: 1;
  letter-spacing: -.01em;
  text-transform: uppercase;
  background: linear-gradient(180deg, #0058F7 0%, rgba(12, 42, 104, 0) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  white-space: nowrap;
}

.footer .btn-pill {
  margin-top: 30px
}

.footer-rule {
  border: none;
  border-top: 1px solid rgba(61, 101, 236, .5);
  margin: 50px 48px 0;
}

.footer-bottom {
  display: flex;
  align-items: center;
  gap: 44px;
  padding: 26px 48px 0;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .35);
}

.footer-bottom a {
  color: #3870A8;
  text-decoration: none;
  transition: color .3s;
  font-size: 14px;
  font-weight: 400;
}

.footer-bottom span {
  color: #3870A8;
  text-decoration: none;
  transition: color .3s;
  font-size: 14px;
  font-weight: 400;
}

.footer-bottom a:hover {
  color: #fff
}

.footer-bottom .push {
  color: #3870A8;
  text-decoration: none;
  transition: color .3s;
  font-size: 14px;
  font-weight: 400;
  margin-left: auto;
}

@media (max-width:900px) {

  .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .introduce-grid,
  .approach-grid {
    grid-template-columns: 1fr
  }

  .approach-left {
    position: static
  }

  .card {
    grid-template-columns: 1fr;
    padding: 40px;
    gap: 28px
  }

  .hero-nav {
    justify-content: flex-start;
    padding: 20px
  }

  .logo img {
    max-width: 60px;
  }

  .hero-nav .btn-pill {
    position: absolute;
    right: 20px;
    top: 25px;
  }

  .footer-title {
    white-space: normal
  }

  .footer-bottom {
    flex-direction: column;
    gap: 15px;
  }

  .footer-bottom .push {
    margin-left: unset;
  }
}

/* ============ CONTACT PAGE ============ */
.contact-header {
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 18px 48px;
  min-height: 68px;
}

.back-link {
  position: absolute;
  left: 48px;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  text-decoration: none;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .02em;
  transition: opacity .3s;
}

.back-link:hover {
  opacity: .8;
}

.back-circle {
  width: 44px;
  height: 44px;
  border: 2px solid #0058F7;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.header-logo {
  font-weight: 900;
  font-size: 30px;
  letter-spacing: -1px;
  color: var(--royal);
  text-decoration: none;
  line-height: .85;
  text-transform: uppercase;
  position: relative;
  user-select: none;
}

.header-logo .reg {
  font-size: 8px;
  font-weight: 700;
  position: absolute;
  bottom: 0;
  right: -10px;
}

/* ---- Main contact area ---- */
.contact-main {
  background: var(--light);
  padding: 80px 0 120px;
  min-height: calc(100vh - 68px);
}

.contact-container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 48px;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: start;
}

/* ---- Left column ---- */
.contact-tag {
  display: inline-block;
  background: var(--royal);
  color: #fff;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 8px 20px;
  margin-bottom: 28px;
}

.contact-heading {
  font-weight: 800;
  font-size: 48px;
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--ink);
  margin-bottom: 36px;
}

.heading-blue {
  color: var(--royal);
}

.contact-label {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 18px;
}

.radio-grid {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 12px;
  margin-bottom: 40px;
}

.radio-option {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: 2px solid #D0D5DD;
  border-radius: 16px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  transition: border-color .25s;
  user-select: none;
}

.radio-option input[type="radio"] {
  display: none;
}

.radio-dot {
  width: 16px;
  height: 16px;
  border: 2px solid #B0B7C3;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: border-color .25s;
}

.radio-dot::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--royal);
  transform: scale(0);
  transition: transform .2s;
}

.radio-option.is-selected {
  border-color: var(--royal);
}

.radio-option.is-selected .radio-dot {
  border-color: var(--royal);
}

.radio-option.is-selected .radio-dot::after {
  transform: scale(1);
}

.radio-option:hover {
  border-color: #90A0C0;
}

.radio-option.is-selected:hover {
  border-color: var(--royal);
}

.contact-divider {
  border: none;
  border-top: 1px solid #E0E4EA;
  margin-bottom: 32px;
}

.contact-email-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}

.contact-email-link {
  font-size: 15px;
  font-weight: 600;
  color: var(--royal);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity .3s;
}

.contact-email-link:hover {
  opacity: .8;
}

/* ---- Right column — Form ---- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
}

.required {
  color: var(--royal);
  margin-left: 2px;
}

.form-input {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid #DCE0E6;
  border-radius: 8px;
  background: #fff;
  font-family: inherit;
  font-size: 14px;
  font-weight: 400;
  color: var(--ink);
  outline: none;
  transition: border-color .25s;
}

.form-input::placeholder {
  color: #9CA3AF;
}

.form-input:focus {
  border-color: var(--royal);
}

.form-textarea {
  min-height: 130px;
  resize: vertical;
}

.send-btn {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: #fff;
  background: var(--royal);
  border: none;
  border-radius: 999px;
  padding: 13px 28px;
  cursor: pointer;
  transition: background .3s;
}

.send-btn:hover {
  background: #0048CC;
}

.send-btn:disabled {
  opacity: .6;
  cursor: not-allowed;
}

.form-status {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
  color: #6B7280;
}

.form-status.is-success {
  color: #0F7B3E;
}

.form-status.is-error {
  color: #C81E1E;
}

/* ---- Contact page responsive ---- */
@media (max-width: 900px) {
  .contact-container {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 0 20px;
  }

  .contact-header {
    padding: 18px 20px;
    justify-content: flex-start;
  }

  .header-logo img {
    max-width: 60px;
  }

  .back-link {
    position: absolute;
    right: 20px;
    left: auto;
    top: 25px;
    max-width: 50px;
    overflow: hidden;
    transform: none;
  }

  .contact-heading {
    font-size: 36px;
  }

  .radio-grid {
    grid-template-columns: repeat(2, auto);
  }
}

@media (max-width: 480px) {
  .contact-heading {
    font-size: 28px;
  }


  .back-link span:not(.back-circle) {
    display: none;
  }
}