:root {
  --color-primary: #f57c00;
  --color-primary-dark: #de6c00;
  --color-primary-soft: #fff3e8;
  --color-text: #111111;
  --color-text-strong: #161616;
  --color-text-muted: #555555;
  --color-subtext: #666666;
  --color-bg: #ffffff;
  --color-bg-soft: #fafafa;
  --color-bg-alt: #f6f7f8;
  --color-border: #e8e8e8;
  --color-border-strong: #dadada;
  --color-error: #d93025;
  --shadow-sm: 0 12px 28px rgba(17, 17, 17, 0.04);
  --shadow-md: 0 18px 48px rgba(17, 17, 17, 0.08);
  --shadow-lg: 0 30px 80px rgba(17, 17, 17, 0.12);
  --radius-sm: 16px;
  --radius-md: 22px;
  --radius-lg: 30px;
  --container: 1240px;
  --header-height: 82px;
  --transition: all 0.28s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  word-break: keep-all;
  scroll-snap-type: y proximity;
}

body.nav-open,
body.modal-open {
  overflow: hidden;
}

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

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

button {
  cursor: pointer;
  border: 0;
  background: none;
}

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

.skip-link {
  position: absolute;
  top: -48px;
  left: 16px;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--color-text);
  color: #fff;
  z-index: 300;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 16px;
}

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

.section {
  position: relative;
  padding: 112px 0;
  scroll-snap-align: start;
}

.section-alt {
  background: linear-gradient(180deg, #fbfbfb 0%, #f5f6f8 100%);
}

.section-kicker,
.service-kicker,
.panel-label,
.modal-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--color-primary);
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.section-heading {
  max-width: 880px;
  margin-bottom: 48px;
}

.section-heading h2 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1.2;
  letter-spacing: -0.045em;
}

.section-heading p {
  margin: 0;
  color: var(--color-subtext);
  font-size: 1.04rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}

.site-header.scrolled {
  border-color: rgba(17, 17, 17, 0.06);
  box-shadow: 0 12px 30px rgba(17, 17, 17, 0.05);
}

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

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.04rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.logo-mark {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--color-primary), #ffb257);
  box-shadow: 0 6px 18px rgba(245, 124, 0, 0.25);
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.desktop-nav a,
.mobile-nav a,
.quick-nav a {
  position: relative;
  color: var(--color-text-muted);
  font-weight: 600;
  transition: var(--transition);
}

.desktop-nav a::after,
.mobile-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.25s ease;
}

.desktop-nav a:hover,
.desktop-nav a:focus-visible,
.mobile-nav a:hover,
.mobile-nav a:focus-visible,
.quick-nav a:hover,
.quick-nav a:focus-visible,
.desktop-nav a.is-active,
.mobile-nav a.is-active,
.quick-nav a.is-active {
  color: var(--color-text-strong);
}

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

.quick-nav {
  position: fixed;
  top: 50%;
  right: 24px;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 90;
}

.quick-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(17, 17, 17, 0.06);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-sm);
  font-size: 0.88rem;
  backdrop-filter: blur(10px);
}

.quick-nav a.is-active {
  border-color: rgba(245, 124, 0, 0.28);
  color: var(--color-primary);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: #fff;
}

.menu-toggle span {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-text);
  transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
  display: none;
  padding: 0 20px 18px;
  border-top: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.98);
}

.mobile-nav.open {
  display: block;
}

.mobile-nav a {
  display: block;
  padding: 13px 4px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: var(--transition);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 14px 28px rgba(245, 124, 0, 0.24);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.btn-secondary {
  background: #fff;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: rgba(245, 124, 0, 0.45);
  color: var(--color-primary);
}

.btn-tertiary {
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
}

.btn-tertiary:hover,
.btn-tertiary:focus-visible {
  background: #ffe7cf;
}

.submit-btn:disabled,
.submit-btn[aria-disabled="true"] {
  background: #cfcfcf;
  color: #fff;
  box-shadow: none;
  cursor: not-allowed;
}

.hero {
  overflow: hidden;
  min-height: calc(100vh - var(--header-height));
  padding-top: 88px;
  background: linear-gradient(180deg, #ffffff 0%, #fafafa 100%);
}

.hero-inner {
  position: relative;
  z-index: 2;
}

.hero-copy {
  max-width: 1040px;
  margin: 0 auto;
  text-align: center;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(2.6rem, 4.8vw, 4.7rem);
  line-height: 1.14;
  letter-spacing: -0.055em;
}

.hero-desc {
  max-width: 860px;
  margin: 24px auto 0;
  color: var(--color-subtext);
  font-size: 1.08rem;
}

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

.summary-grid,
.difference-grid,
.performance-summary,
.service-grid,
.contact-points {
  display: grid;
  gap: 24px;
}

.summary-grid {
  margin-top: 54px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.summary-card,
.difference-card,
.service-block,
.task-card,
.performance-summary-card,
.contact-highlight,
.contact-points article,
.contact-form,
.subfilter-bar,
.detail-item {
  border: 1px solid rgba(17, 17, 17, 0.06);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-sm);
}

.summary-card {
  display: block;
  padding: 30px;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.summary-card:hover,
.summary-card:focus-visible,
.difference-card:hover,
.task-card:hover,
.performance-summary-card:hover,
.contact-highlight:hover,
.contact-points article:hover,
.detail-item:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 124, 0, 0.24);
  box-shadow: var(--shadow-md);
}

.summary-card h2,
.service-head h3,
.task-card h4,
.modal-header h3,
.detail-title {
  margin: 0;
  letter-spacing: -0.03em;
}

.summary-card h2 {
  font-size: 1.28rem;
}

.summary-card p,
.difference-card p,
.task-card p,
.performance-summary-card p,
.contact-highlight p,
.contact-points p,
.modal-header p:last-child,
.detail-summary,
.detail-panel p {
  margin: 0;
  color: var(--color-subtext);
}

.summary-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  color: var(--color-primary-dark);
  font-weight: 700;
}

.summary-link::after {
  content: "→";
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.backdrop-orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(10px);
}

.orb-a {
  width: 320px;
  height: 320px;
  top: 84px;
  left: -80px;
  background: radial-gradient(circle, rgba(245, 124, 0, 0.14) 0%, rgba(245, 124, 0, 0) 72%);
}

.orb-b {
  width: 420px;
  height: 420px;
  right: -80px;
  bottom: 80px;
  background: radial-gradient(circle, rgba(245, 124, 0, 0.1) 0%, rgba(245, 124, 0, 0) 70%);
}

.backdrop-grid {
  position: absolute;
  inset: auto 0 0;
  height: 220px;
  background-image:
    linear-gradient(rgba(17, 17, 17, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 17, 17, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.7) 35%, rgba(0, 0, 0, 1) 100%);
}

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

.difference-card {
  padding: 28px;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.difference-label {
  display: inline-flex;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid rgba(245, 124, 0, 0.24);
  font-size: 1.06rem;
  font-weight: 800;
}

.service-stack {
  display: grid;
  gap: 30px;
}

.service-block {
  padding: 34px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(249, 249, 249, 0.98) 100%);
}

.service-head {
  margin-bottom: 26px;
}

.service-head h3 {
  font-size: clamp(1.55rem, 2.2vw, 2rem);
}

.service-kicker {
  margin-bottom: 10px;
  color: var(--color-primary);
  font-size: clamp(1.55rem, 2.2vw, 2rem);
  line-height: 1.25;
  letter-spacing: -0.03em;
}

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

.task-card {
  padding: 24px;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.task-card h4 {
  font-size: 1.13rem;
}

.task-card p {
  margin-top: 12px;
  font-size: 0.97rem;
}

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

.performance-summary-card {
  width: 100%;
  padding: 28px;
  border-radius: var(--radius-md);
  text-align: left;
  transition: var(--transition);
}

.performance-summary-card h3 {
  margin: 0 0 12px;
  color: var(--color-primary);
  font-size: clamp(1.55rem, 2.2vw, 2rem);
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 28px;
  align-items: start;
}

.contact-panel {
  display: grid;
  gap: 18px;
}

.contact-highlight,
.contact-points article,
.contact-form {
  padding: 28px;
  border-radius: var(--radius-md);
}

.contact-points article strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.02rem;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

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

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

.form-group label {
  font-weight: 700;
  font-size: 0.96rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--color-border-strong);
  border-radius: 14px;
  background: #fff;
  color: var(--color-text);
  transition: var(--transition);
  appearance: none;
}

.form-group textarea {
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: rgba(245, 124, 0, 0.6);
  box-shadow: 0 0 0 4px rgba(245, 124, 0, 0.08);
}

.form-group.has-error input,
.form-group.has-error textarea,
.form-group.has-error select {
  border-color: rgba(217, 48, 37, 0.45);
  box-shadow: 0 0 0 4px rgba(217, 48, 37, 0.08);
}

.field-error {
  min-height: 20px;
  margin: 0;
  font-size: 0.88rem;
  color: var(--color-error);
}

.privacy-box {
  padding: 18px 20px;
  border-radius: 18px;
  background: var(--color-bg-alt);
  border: 1px solid rgba(17, 17, 17, 0.06);
}

.consent-check {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-weight: 700;
  cursor: pointer;
}

.consent-check input {
  width: 18px;
  height: 18px;
  margin-top: 4px;
  accent-color: var(--color-primary);
}

.consent-check em {
  color: var(--color-primary-dark);
  font-style: normal;
}

.privacy-toggle {
  margin-top: 14px;
  padding: 0;
  color: var(--color-text-muted);
  font-weight: 700;
}

.privacy-guide {
  margin-top: 14px;
  padding: 16px 18px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid rgba(17, 17, 17, 0.06);
}

.privacy-guide p {
  margin: 0;
  color: var(--color-subtext);
}

.privacy-guide p + p {
  margin-top: 8px;
}

.site-footer {
  background: #111111;
  color: rgba(255, 255, 255, 0.88);
  padding: 42px 0;
}

.footer-inner {
  display: grid;
  gap: 20px;
}

.footer-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.footer-cnp-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-primary);
  border-radius: 999px;
  padding: 10px 20px;
  color: var(--color-primary);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  transition: var(--transition);
}

.footer-cnp-link:hover,
.footer-cnp-link:focus-visible {
  background: var(--color-primary);
  color: #fff;
}

.footer-title {
  margin: 0 0 10px;
  font-size: 1.08rem;
  font-weight: 800;
}

.footer-desc,
.footer-copy,
.footer-contact p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
}

.footer-contact {
  display: grid;
  gap: 8px;
}

.footer-contact span {
  display: inline-block;
  min-width: 72px;
  color: rgba(255, 255, 255, 0.95);
  font-weight: 700;
}

.footer-contact a:hover,
.footer-contact a:focus-visible {
  color: #fff;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 220;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(17, 17, 17, 0.56);
}

.modal-overlay[hidden],
.privacy-guide[hidden],
.detail-panel[hidden] {
  display: none !important;
}

.modal {
  position: relative;
  width: min(100%, 980px);
  max-height: 88vh;
  overflow: auto;
  padding: 32px;
  border-radius: 28px;
  background: #fff;
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-text);
  font-size: 1.5rem;
}

.modal-header {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
  font-size: clamp(1.6rem, 3vw, 2rem);
}

.subfilter-bar {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0;
  padding: 10px;
  border-radius: 999px;
}

.subfilter-btn {
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  color: var(--color-text-muted);
  font-weight: 700;
  transition: var(--transition);
}

.subfilter-btn:hover,
.subfilter-btn:focus-visible {
  color: var(--color-text);
  background: rgba(17, 17, 17, 0.04);
}

.subfilter-btn.is-active {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 12px 24px rgba(245, 124, 0, 0.22);
}

.modal-body {
  display: grid;
  gap: 14px;
}

.detail-item {
  border-radius: 18px;
  overflow: hidden;
  transition: var(--transition);
}

.detail-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 24px;
  text-align: left;
}

.detail-meta {
  display: grid;
  gap: 10px;
}

.detail-chip {
  display: inline-flex;
  width: fit-content;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
  font-size: 0.84rem;
  font-weight: 800;
}

.detail-title {
  font-size: 1.06rem;
}

.detail-icon {
  flex-shrink: 0;
  font-size: 1.4rem;
  color: var(--color-primary);
}

.detail-panel {
  padding: 0 24px 24px;
  border-top: 1px solid rgba(17, 17, 17, 0.06);
}

.detail-summary {
  margin-top: 18px;
}

.detail-block {
  margin-top: 16px;
}

.detail-block strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.96rem;
}

.detail-empty {
  padding: 28px;
  border-radius: 18px;
  background: var(--color-bg-soft);
  border: 1px dashed var(--color-border-strong);
  color: var(--color-subtext);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translate(-50%, 20px);
  opacity: 0;
  visibility: hidden;
  z-index: 240;
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(17, 17, 17, 0.92);
  color: #fff;
  font-size: 0.94rem;
  transition: 0.26s ease;
}

.toast.show {
  transform: translate(-50%, 0);
  opacity: 1;
  visibility: visible;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (max-width: 1340px) {
  .quick-nav {
    display: none;
  }
}

@media (max-width: 1180px) {
  .summary-grid,
  .difference-grid,
  .performance-summary,
  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .section {
    padding: 88px 0;
  }

  .desktop-nav {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .hero {
    padding-top: 54px;
  }

  .hero-copy {
    text-align: left;
  }

  .hero-copy h1 {
    font-size: clamp(2.15rem, 10vw, 3.6rem);
  }

  .hero-desc {
    margin-inline: 0;
  }

  .hero-actions {
    justify-content: flex-start;
  }

  .summary-grid,
  .difference-grid,
  .performance-summary,
  .service-grid,
  .contact-form {
    grid-template-columns: 1fr;
  }

  .form-group.full,
  .full {
    grid-column: auto;
  }

  .modal {
    padding: 26px 22px;
  }

  .subfilter-bar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-radius: 22px;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .summary-card,
  .difference-card,
  .service-block,
  .task-card,
  .performance-summary-card,
  .contact-highlight,
  .contact-points article,
  .contact-form,
  .detail-toggle,
  .detail-panel {
    padding-left: 24px;
    padding-right: 24px;
  }

  .subfilter-bar {
    grid-template-columns: 1fr;
  }

  .footer-contact span {
    display: block;
    min-width: 0;
    margin-bottom: 2px;
  }

  .footer-head {
    flex-direction: column;
    gap: 12px;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

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

.performance-section-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 28px;
}

.performance-link-btn {
  min-width: 168px;
}

@media (max-width: 860px) {
  .performance-section-footer {
    justify-content: flex-start;
  }
}