@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");

:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #eff6ff;
  --color-accent: #0ea5e9;
  --color-text: #111827;
  --color-text-secondary: #4b5563;
  --color-text-muted: #9ca3af;
  --color-border: #e5e7eb;
  --color-bg: #ffffff;
  --color-bg-soft: #f8fafc;
  --color-bg-muted: #f1f5f9;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(37, 99, 235, 0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --header-height: 72px;
  --container: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.site-header.is-scrolled {
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.site-logo img {
  width: 32px;
  height: 32px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color 0.2s;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--color-primary);
}

.site-nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  background: var(--color-primary);
  color: #fff !important;
  border-radius: 999px;
  font-weight: 600;
  transition: background 0.2s, transform 0.2s;
}

.site-nav__cta:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

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

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

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

/* Hero */
.hero {
  position: relative;
  padding: calc(var(--header-height) + 80px) 0 100px;
  overflow: hidden;
  background: linear-gradient(180deg, #eff6ff 0%, #ffffff 60%);
}

.hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  margin-bottom: 24px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
}

.hero__title {
  margin: 0 0 20px;
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.hero__title em {
  font-style: normal;
  color: var(--color-primary);
}

.hero__desc {
  margin: 0 0 36px;
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

.btn--secondary {
  background: #fff;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.hero__visual {
  position: relative;
}

.hero__card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-md);
}

.hero__card-title {
  margin: 0 0 20px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hero__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-card {
  padding: 20px;
  background: var(--color-bg-soft);
  border-radius: var(--radius-md);
}

.stat-card__value {
  display: block;
  margin-bottom: 4px;
  font-size: 28px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.stat-card__label {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

/* Section common */
.section {
  padding: 96px 0;
}

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

.section__label {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section__title {
  margin: 0 0 16px;
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.section__desc {
  margin: 0 0 48px;
  max-width: 600px;
  font-size: 17px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.section__header {
  margin-bottom: 48px;
}

.section__header--center {
  text-align: center;
}

.section__header--center .section__desc {
  margin-left: auto;
  margin-right: auto;
}

/* Feature list */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 32px 28px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: box-shadow 0.2s, transform 0.2s;
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.feature-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  background: var(--color-primary-light);
  border-radius: var(--radius-sm);
  font-size: 22px;
}

.feature-card__title {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
}

.feature-card__desc {
  margin: 0;
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Strength list */
.strength-list {
  display: flex;
  flex-direction: column;
  max-width: 720px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.strength-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 28px;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
}

.strength-item:last-child {
  border-bottom: none;
}

.strength-item__check {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
}

.strength-item__text {
  flex: 1;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
}

/* Service cards */
.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.service-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 48px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.service-card__label {
  display: inline-block;
  margin-bottom: 12px;
  padding: 6px 12px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}

.service-card__title {
  margin: 0 0 16px;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.service-card__desc {
  margin: 0 0 24px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.service-card__list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 12px;
  font-size: 15px;
  color: var(--color-text-secondary);
}

.service-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
}

.service-card__visual {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.channel-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.channel-tag {
  padding: 10px 18px;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

/* Portfolio grid */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

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

.portfolio-item {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: box-shadow 0.2s, transform 0.2s;
}

.portfolio-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.portfolio-item__image {
  aspect-ratio: 9 / 16;
  background: var(--color-bg-muted);
  overflow: hidden;
}

.portfolio-item__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portfolio-item__image--square {
  aspect-ratio: 1;
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.portfolio-item__image--square img {
  object-fit: contain;
}

.portfolio-item__body {
  padding: 20px 24px 24px;
}

.portfolio-item__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
}

.portfolio-item__desc {
  margin: 0;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* CTA band */
.cta-band {
  padding: 72px 0;
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 50%, #0ea5e9 100%);
  color: #fff;
  text-align: center;
}

.cta-band__title {
  margin: 0 0 12px;
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.cta-band__desc {
  margin: 0 0 32px;
  font-size: 17px;
  opacity: 0.9;
}

.cta-band .btn--primary {
  background: #fff;
  color: var(--color-primary);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.cta-band .btn--primary:hover {
  background: #f8fafc;
}

/* Contact page */
.page-hero {
  padding: calc(var(--header-height) + 64px) 0 48px;
  background: linear-gradient(180deg, #eff6ff 0%, #ffffff 100%);
}

.page-hero__title {
  margin: 0 0 12px;
  font-size: clamp(32px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.page-hero__desc {
  margin: 0;
  font-size: 17px;
  color: var(--color-text-secondary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  padding-bottom: 96px;
}

.contact-card {
  padding: 36px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.contact-card__title {
  margin: 0 0 16px;
  font-size: 20px;
  font-weight: 700;
}

.contact-card__desc {
  margin: 0 0 24px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.contact-card__list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 12px;
  color: var(--color-text-secondary);
}

.contact-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  margin-bottom: 12px;
  background: var(--color-bg-soft);
  border-radius: var(--radius-md);
  transition: background 0.2s;
}

.contact-link:hover {
  background: var(--color-primary-light);
}

.contact-link__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: #fff;
  border-radius: var(--radius-sm);
  font-size: 20px;
}

.contact-link__label {
  display: block;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 2px;
}

.contact-link__value {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  word-break: break-all;
}

/* Footer */
.site-footer {
  padding: 56px 0 40px;
  background: #0f172a;
  color: #94a3b8;
  font-size: 13px;
  line-height: 1.8;
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid #1e293b;
  margin-bottom: 32px;
}

.site-footer__brand {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.site-footer__tagline {
  margin: 0;
  color: #64748b;
  line-height: 1.6;
}

.site-footer__nav {
  display: flex;
  gap: 24px;
  justify-content: flex-end;
}

.site-footer__nav a {
  color: #cbd5e1;
  font-weight: 500;
  transition: color 0.2s;
}

.site-footer__nav a:hover {
  color: #fff;
}

.site-footer__company {
  font-size: 14px;
  font-weight: 600;
  color: #e2e8f0;
  margin-bottom: 8px;
}

.site-footer__info {
  margin: 0;
}

.site-footer__copyright {
  margin: 16px 0 12px;
  color: #64748b;
}

.site-footer__links a {
  color: #94a3b8;
  transition: color 0.2s;
}

.site-footer__links a:hover {
  color: #fff;
}

.site-footer__divider {
  margin: 0 8px;
  color: #334155;
}

/* Utilities */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--color-primary);
}

.text-link:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 960px) {
  .hero__inner {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    order: -1;
  }

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

  .service-card {
    grid-template-columns: 1fr;
    padding: 32px 24px;
  }

  .portfolio-grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .site-footer__top {
    grid-template-columns: 1fr;
  }

  .site-footer__nav {
    justify-content: flex-start;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s, opacity 0.25s;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav a {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
  }

  .site-nav a:hover {
    background: var(--color-bg-soft);
  }

  .site-nav__cta {
    margin-top: 8px;
    text-align: center;
  }

  .section {
    padding: 64px 0;
  }

  .strength-list {
    max-width: 100%;
  }

  .strength-item {
    padding: 18px 20px;
  }

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

  .portfolio-grid--4 {
    grid-template-columns: 1fr 1fr;
  }
}