:root {
  --brand-navy: #091b32;
  --brand-blue: #2556a5;
  --ink: #102139;
  --muted: #66768b;
  --surface: #f4f7fb;
  --paper: #ffffff;
  --line: rgba(9, 27, 50, 0.13);
  --blue-line: rgba(37, 86, 165, 0.22);
  --logo-x: 0deg;
  --logo-y: 0deg;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", Inter, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
}
button, input, textarea, select { font: inherit; }
button { color: inherit; }
button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--brand-blue);
  outline-offset: 3px;
}

.section-shell {
  width: min(100%, 1440px);
  margin: 0 auto;
  padding-left: clamp(24px, 6vw, 96px);
  padding-right: clamp(24px, 6vw, 96px);
}

.site-header {
  position: fixed;
  z-index: 30;
  inset: 0 0 auto;
  height: 88px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 clamp(24px, 5vw, 76px);
  background: rgba(244, 247, 251, 0.9);
  border-bottom: 1px solid rgba(9, 27, 50, 0.08);
  backdrop-filter: blur(18px);
}
.brand-button { width: 66px; height: 66px; border: 0; padding: 4px; background: transparent; cursor: pointer; }
.brand-button img { display: block; width: 100%; height: 100%; object-fit: contain; }
.site-header nav { display: flex; gap: 38px; }
.site-header nav button {
  border: 0;
  padding: 8px 0;
  background: transparent;
  color: #34445a;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}
.header-cta {
  justify-self: end;
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  gap: 22px;
  border: 1px solid rgba(9, 27, 50, 0.22);
  padding: 0 17px;
  background: transparent;
  color: var(--brand-navy);
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
  transition: background .25s ease, color .25s ease, border-color .25s ease;
}
.header-cta:hover { background: var(--brand-navy); border-color: var(--brand-navy); color: #fff; }
.header-cta svg, .button-primary svg, .form-submit svg {
  width: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  transition: transform .25s ease;
}
.header-cta:hover svg, .button-primary:hover svg, .form-submit:hover svg { transform: translateX(4px); }

.hero {
  min-height: 840px;
  height: 100svh;
  padding-top: 140px;
  padding-bottom: 64px;
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  align-items: center;
  gap: clamp(36px, 6vw, 92px);
  overflow: hidden;
}
.kicker {
  display: flex;
  align-items: center;
  gap: 13px;
  margin: 0 0 27px;
  color: var(--brand-blue);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .18em;
}
.kicker > span {
  width: 31px;
  height: 21px;
  display: grid;
  place-items: center;
  border: 1px solid var(--blue-line);
  font: 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .08em;
}
.hero h1 {
  margin: 0;
  color: var(--brand-navy);
  font-size: clamp(50px, 5.2vw, 82px);
  font-weight: 760;
  line-height: 1.15;
  letter-spacing: -.065em;
}
.hero h1 em { color: var(--brand-blue); font-style: normal; }
.hero-lead {
  max-width: 650px;
  margin: 31px 0 0;
  color: #56677e;
  font-size: clamp(16px, 1.25vw, 19px);
  line-height: 1.85;
  letter-spacing: -.02em;
}
.hero-actions { display: flex; align-items: center; gap: 32px; margin-top: 40px; }
.button-primary {
  min-height: 58px;
  padding: 0 25px;
  border: 1px solid var(--brand-blue);
  background: var(--brand-blue);
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 40px;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 13px 30px rgba(37, 86, 165, .18);
  transition: background .25s ease, color .25s ease, box-shadow .25s ease;
}
.button-primary:hover { background: transparent; color: var(--brand-blue); box-shadow: none; }
.button-link {
  border: 0;
  border-bottom: 1px solid rgba(9, 27, 50, .28);
  padding: 9px 0;
  background: transparent;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}
.button-link span { margin-left: 8px; color: var(--brand-blue); }
.hero-proof {
  max-width: 480px;
  margin-top: 54px;
  padding-top: 19px;
  display: flex;
  align-items: center;
  gap: 18px;
  border-top: 1px solid var(--line);
}
.hero-proof div { display: flex; align-items: center; gap: 10px; }
.hero-proof strong { color: var(--brand-navy); font-size: 10px; letter-spacing: .15em; }
.hero-proof span { color: var(--muted); font-size: 11px; }
.hero-proof i { width: 54px; height: 1px; position: relative; background: var(--blue-line); }
.hero-proof i::after { content: ""; position: absolute; right: 0; top: -2px; width: 5px; height: 5px; border-radius: 50%; background: var(--brand-blue); }

.hero-visual {
  position: relative;
  min-height: 600px;
  display: grid;
  place-items: center;
  perspective: 1000px;
}
.visual-grid {
  position: absolute;
  inset: 5%;
  border: 1px solid rgba(9, 27, 50, .08);
  background-image: linear-gradient(rgba(9, 27, 50, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(9, 27, 50, .05) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(circle, black 18%, transparent 73%);
}
.logo-stage {
  position: relative;
  width: min(72%, 390px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  transform: rotateX(var(--logo-y)) rotateY(var(--logo-x));
  transform-style: preserve-3d;
  transition: transform .22s ease-out;
}
.logo-stage img {
  position: relative;
  z-index: 2;
  width: 82%;
  height: 82%;
  object-fit: contain;
  filter: drop-shadow(24px 30px 26px rgba(9, 27, 50, .16));
}
.logo-halo {
  position: absolute;
  inset: 7%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 86, 165, .16), rgba(37, 86, 165, .04) 48%, transparent 69%);
  filter: blur(8px);
  transform: translateZ(-35px);
}
.route-line { position: absolute; border: 1px solid rgba(37, 86, 165, .22); border-radius: 50%; }
.route-one { width: 78%; aspect-ratio: 1; animation: pulse 7s ease-in-out infinite; }
.route-two { width: 96%; aspect-ratio: 1; border-color: rgba(9, 27, 50, .1); animation: pulse 7s 1.2s ease-in-out infinite reverse; }
.visual-note {
  position: absolute;
  padding: 8px 12px;
  background: rgba(255, 255, 255, .82);
  border: 1px solid rgba(9, 27, 50, .1);
  color: var(--brand-blue);
  font-size: 9px;
  font-weight: 850;
  letter-spacing: .17em;
  backdrop-filter: blur(8px);
}
.note-one { left: 2%; top: 29%; }
.note-two { right: 0; bottom: 26%; }
.visual-coordinate { position: absolute; left: 5%; bottom: 6%; color: #7f8b9a; font: 9px/1 ui-monospace, monospace; letter-spacing: .11em; }
@keyframes pulse { 50% { transform: scale(1.035); opacity: .62; } }

.brand-story {
  position: relative;
  max-width: none;
  width: 100%;
  min-height: 610px;
  padding-top: 112px;
  padding-bottom: 106px;
  display: grid;
  grid-template-columns: .38fr 1fr .7fr;
  align-items: center;
  gap: clamp(28px, 5vw, 74px);
  background: var(--brand-navy);
  color: #fff;
  overflow: hidden;
}
.brand-story::after {
  content: "";
  position: absolute;
  width: 540px;
  height: 540px;
  right: -180px;
  top: -190px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 50%;
  box-shadow: 0 0 0 84px rgba(255,255,255,.022), 0 0 0 168px rgba(255,255,255,.018);
}
.story-number { align-self: start; color: rgba(255,255,255,.14); font-size: clamp(92px, 13vw, 190px); font-weight: 800; line-height: .78; letter-spacing: -.08em; }
.story-copy { position: relative; z-index: 1; }
.kicker.inverse { color: #82a8e5; }
.kicker.inverse > span { border-color: rgba(130,168,229,.35); }
.story-copy h2 { margin: 0; font-size: clamp(37px, 3.5vw, 57px); font-weight: 720; line-height: 1.32; letter-spacing: -.055em; }
.story-copy > p:last-child { max-width: 680px; margin: 30px 0 0; color: #aab7c8; font-size: 15px; line-height: 1.95; }
.story-logo { position: relative; z-index: 1; width: min(100%, 300px); justify-self: end; opacity: .96; }

.services { padding-top: 132px; padding-bottom: 140px; background: #fff; }
.section-heading { display: grid; grid-template-columns: 1fr 1.2fr; column-gap: 8vw; align-items: start; }
.section-heading .kicker { grid-column: 1; }
.section-heading h2 {
  grid-column: 1;
  margin: 0;
  color: var(--brand-navy);
  font-size: clamp(38px, 3.5vw, 56px);
  font-weight: 740;
  line-height: 1.3;
  letter-spacing: -.06em;
}
.section-heading > p:last-child {
  grid-column: 2;
  grid-row: 2;
  max-width: 440px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 76px; border: 1px solid var(--line); }
.service-card {
  position: relative;
  min-height: 390px;
  padding: 30px 32px 36px;
  border-right: 1px solid var(--line);
  background: #fff;
  overflow: hidden;
  transition: transform .3s ease, background .3s ease, box-shadow .3s ease;
}
.service-card:last-child { border-right: 0; }
.service-card:hover { transform: translateY(-8px); background: var(--surface); box-shadow: 0 22px 54px rgba(9, 27, 50, .09); z-index: 1; }
.service-top { display: flex; align-items: center; gap: 12px; color: #8d99a8; font: 9px/1 ui-monospace, monospace; letter-spacing: .15em; }
.service-line { height: 1px; flex: 1; background: var(--line); }
.service-card h3 { margin: 76px 0 9px; color: var(--brand-blue); font-size: 14px; text-transform: uppercase; letter-spacing: .12em; font-weight: 850; }
.service-card h4 { margin: 0; color: var(--brand-navy); font-size: 21px; letter-spacing: -.035em; }
.service-card > p { margin: 29px 0 0; color: var(--muted); font-size: 14px; line-height: 1.85; }
.card-corner { position: absolute; width: 62px; height: 62px; right: -31px; bottom: -31px; border: 1px solid var(--blue-line); transform: rotate(45deg); }

.path-panel { margin-top: 84px; background: var(--brand-navy); color: #fff; box-shadow: 0 25px 65px rgba(9,27,50,.14); }
.path-tabs { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid rgba(255,255,255,.12); }
.path-tabs button {
  position: relative;
  min-height: 68px;
  border: 0;
  background: transparent;
  color: #8493a7;
  font-weight: 750;
  cursor: pointer;
}
.path-tabs button + button { border-left: 1px solid rgba(255,255,255,.12); }
.path-tabs button.active { color: #fff; background: rgba(255,255,255,.045); }
.path-tabs button.active::after { content: ""; position: absolute; left: 50%; bottom: -1px; width: 74px; height: 2px; background: var(--brand-blue); transform: translateX(-50%); }
.path-content { display: grid; grid-template-columns: 1.08fr .92fr; gap: 7vw; padding: 64px 6vw 68px; animation: fadeUp .36s ease both; }
.path-intro > span { color: #82a8e5; font-size: 10px; font-weight: 850; letter-spacing: .17em; }
.path-intro h3 { max-width: 600px; margin: 18px 0 20px; font-size: clamp(29px, 2.65vw, 42px); font-weight: 710; line-height: 1.4; letter-spacing: -.045em; }
.path-intro p { margin: 0; max-width: 540px; color: #aab7c8; font-size: 14px; line-height: 1.9; }
.path-steps { margin: 0; padding: 0; list-style: none; }
.path-steps li { display: grid; grid-template-columns: 36px 1fr; gap: 18px; padding: 0 0 24px; position: relative; }
.path-steps li:not(:last-child)::after { content: ""; position: absolute; left: 15px; top: 33px; bottom: 1px; width: 1px; background: rgba(130,168,229,.27); }
.path-steps li > span { width: 31px; height: 31px; display: grid; place-items: center; border: 1px solid rgba(130,168,229,.38); border-radius: 50%; color: #82a8e5; background: var(--brand-navy); font: 9px/1 ui-monospace, monospace; z-index: 1; }
.path-steps strong { display: block; font-size: 15px; }
.path-steps p { margin: 6px 0 0; color: #9baabd; font-size: 13px; line-height: 1.6; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } }

.contact {
  position: relative;
  max-width: none;
  width: 100%;
  min-height: 900px;
  padding-top: 124px;
  padding-bottom: 36px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 540px);
  column-gap: 9vw;
  align-items: start;
  background: var(--surface);
  overflow: hidden;
}
.contact::before {
  content: "";
  position: absolute;
  width: 650px;
  height: 650px;
  left: -280px;
  top: 170px;
  border: 1px solid rgba(37,86,165,.11);
  border-radius: 50%;
  box-shadow: 0 0 0 86px rgba(37,86,165,.025), 0 0 0 172px rgba(37,86,165,.018);
}
.contact-copy, .contact-card, footer { position: relative; z-index: 1; }
.contact-copy h2 { margin: 0; color: var(--brand-navy); font-size: clamp(43px, 4.35vw, 68px); font-weight: 740; line-height: 1.25; letter-spacing: -.06em; }
.contact-copy > p:not(.kicker) { margin: 32px 0 0; color: var(--muted); font-size: 15px; line-height: 1.9; }
.email-copy { margin-top: 54px; padding: 0 0 9px; border: 0; border-bottom: 1px solid rgba(37,86,165,.38); background: transparent; color: var(--brand-blue); font-size: 15px; font-weight: 700; cursor: pointer; }
.email-copy span { margin-left: 18px; font-size: 9px; font-weight: 850; letter-spacing: .14em; }

.contact-card { background: #fff; color: var(--ink); border: 1px solid rgba(9,27,50,.09); box-shadow: 0 30px 72px rgba(9,27,50,.12); }
.inquiry-tabs { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--line); }
.inquiry-tabs button { min-height: 63px; border: 0; background: #eef2f7; color: #8290a0; font-size: 13px; font-weight: 760; cursor: pointer; }
.inquiry-tabs button + button { border-left: 1px solid var(--line); }
.inquiry-tabs button.active { color: var(--brand-navy); background: #fff; box-shadow: inset 0 -2px var(--brand-blue); }
.contact-card form { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 18px; padding: 35px; }
.contact-card label { display: grid; gap: 9px; color: var(--brand-navy); font-size: 12px; font-weight: 760; }
.contact-card label:nth-of-type(3), .contact-card label:nth-of-type(4), .contact-card .consent, .form-submit { grid-column: 1 / -1; }
.contact-card input:not([type="checkbox"]), .contact-card select, .contact-card textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid #d4dae2;
  border-radius: 0;
  padding: 11px 0 12px;
  background: transparent;
  color: var(--ink);
  font-size: 14px;
  font-weight: 450;
  outline: none;
}
.contact-card textarea { resize: vertical; }
.contact-card input:not([type="checkbox"]):focus, .contact-card select:focus, .contact-card textarea:focus { border-color: var(--brand-blue); }
.contact-card input::placeholder, .contact-card textarea::placeholder { color: #a4adb9; }
.contact-card .consent { display: flex; grid-template-columns: none; flex-direction: row; align-items: center; gap: 9px; color: #737f8d; font-weight: 500; }
.consent input { accent-color: var(--brand-blue); }
.form-submit { min-height: 57px; border: 0; padding: 0 22px; display: flex; justify-content: space-between; align-items: center; background: var(--brand-blue); color: #fff; font-size: 14px; font-weight: 800; cursor: pointer; }

footer {
  grid-column: 1 / -1;
  align-self: end;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 42px;
  margin-top: 86px;
  padding: 25px 28px;
  background: var(--brand-navy);
  color: #8190a4;
  font-size: 10px;
  letter-spacing: .06em;
}
footer img { width: 62px; height: 58px; object-fit: contain; }
footer p { margin: 0; }

@media (max-width: 980px) {
  .hero { height: auto; min-height: 830px; grid-template-columns: 1fr; padding-top: 150px; padding-bottom: 90px; }
  .hero-visual { min-height: 500px; }
  .brand-story { grid-template-columns: .35fr 1fr; }
  .story-logo { display: none; }
  .section-heading { grid-template-columns: 1fr; }
  .section-heading > p:last-child { grid-column: 1; grid-row: auto; margin-top: 28px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 300px; border-right: 0; border-bottom: 1px solid var(--line); }
  .service-card:last-child { border-bottom: 0; }
  .service-card h3 { margin-top: 48px; }
  .path-content { grid-template-columns: 1fr; }
  .contact { grid-template-columns: 1fr; gap: 60px; }
  .contact-card { max-width: 620px; width: 100%; }
  footer { grid-template-columns: 1fr; gap: 12px; }
}

@media (max-width: 680px) {
  .site-header { height: 72px; grid-template-columns: 1fr auto; }
  .brand-button { width: 55px; height: 55px; }
  .site-header nav { display: none; }
  .header-cta { min-height: 38px; font-size: 12px; }
  .hero { min-height: 760px; padding-top: 126px; }
  .hero h1 { font-size: clamp(43px, 12.5vw, 62px); line-height: 1.18; }
  .desktop-only { display: none; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 20px; }
  .hero-proof { margin-top: 42px; gap: 12px; }
  .hero-proof i { width: 32px; }
  .hero-visual { min-height: 370px; margin-top: 8px; }
  .route-one { width: 76%; }
  .route-two { width: 96%; }
  .logo-stage { width: 62%; }
  .note-one { left: 0; }
  .note-two { right: 0; }
  .brand-story { min-height: 570px; grid-template-columns: 1fr; padding-top: 90px; }
  .story-number { display: none; }
  .services { padding-top: 96px; padding-bottom: 100px; }
  .service-grid { margin-top: 52px; }
  .path-panel { margin-top: 62px; margin-left: -24px; margin-right: -24px; }
  .path-content { padding: 45px 24px 50px; }
  .path-tabs button { font-size: 13px; }
  .contact { padding-top: 94px; }
  .contact-copy h2 { font-size: 45px; }
  .contact-card { margin-left: -8px; width: calc(100% + 16px); }
  .contact-card form { grid-template-columns: 1fr; padding: 28px 24px; }
  .contact-card label { grid-column: 1 / -1; }
  footer { margin: 60px -24px -36px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}