/* ============================================================
   JD GROUP — 정적 원페이지 홈페이지 스타일
   토큰(:root) 만 색상 출처로 사용. 컴포넌트에 hex 하드코딩 금지.
   ============================================================ */

:root {
  --color-bg:        #080B10;
  --color-surface:   #0F141C;
  --color-primary:   #3B82F6;
  --color-primary-hover: #2563EB;
  --color-text:      #F8FAFC;
  --color-text-secondary: #94A3B8;
  --color-border:    rgba(255, 255, 255, 0.08);
  --color-logo-card-bg: #FFFFFF; /* 흰 배경으로 제작된 브랜드 로고(포켓사수)를 감싸는 카드 전용 */

  --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --container-max: 1200px;
  --space-section: 160px;
  --space-section-mobile: 96px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

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

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

/* ---------- fade-up (scroll reveal) ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s var(--ease), border-color 0.3s var(--ease), backdrop-filter 0.3s var(--ease);
}
.header.is-scrolled {
  background-color: rgba(8, 11, 16, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom-color: var(--color-border);
}
.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.nav {
  display: flex;
  gap: 32px;
}
.nav a {
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: color 0.2s var(--ease);
}
.nav a:hover {
  color: var(--color-text);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), opacity 0.2s var(--ease);
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-text);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
}
.btn-ghost {
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn-ghost:hover {
  border-color: var(--color-text-secondary);
}

.link-arrow {
  display: inline-block;
  margin-top: 32px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  transition: opacity 0.2s var(--ease);
}
.link-arrow:hover {
  opacity: 0.8;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 220px 0 160px;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(closest-side, rgba(59, 130, 246, 0.16), transparent);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  text-align: center;
}
.hero-title-en {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.hero-title-kr {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}
.hero-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 48px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}
.br-mobile {
  display: none;
}

/* ---------- Service ---------- */
.service {
  padding: var(--space-section) 0;
  border-top: 1px solid var(--color-border);
}
.service-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
}
.service-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 20px 0 16px;
}
.service-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}
.feature-list {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.feature {
  display: flex;
  gap: 20px;
}
.feature-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  padding-top: 2px;
  flex-shrink: 0;
}
.feature-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}
.feature-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.service-visual {
  display: flex;
  justify-content: center;
}
.phone-mockup {
  width: 260px;
  aspect-ratio: 9 / 19;
  border: 1px solid var(--color-border);
  border-radius: 32px;
  background: var(--color-surface);
  padding: 16px;
}
.phone-mockup-inner {
  width: 100%;
  height: 100%;
  border-radius: 20px;
  background: var(--color-logo-card-bg); /* 로고 원본이 흰 배경 — 카드처럼 감싸 어색한 여백 없이 표시 */
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.phone-mockup-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* ---------- About ---------- */
.about {
  padding: var(--space-section) 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.about-inner {
  max-width: 720px;
}
.about-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-top: 24px;
}
.value-grid {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.value {
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}
.value-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 8px;
}
.value-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ---------- Vision ---------- */
.vision {
  padding: var(--space-section) 0;
}
.vision-inner {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}
.vision-kr {
  font-size: clamp(24px, 3.6vw, 36px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
  margin-bottom: 28px;
}
.vision-en {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ---------- Contact ---------- */
.contact {
  padding: var(--space-section) 0;
  border-top: 1px solid var(--color-border);
}
.contact-inner {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}
.contact-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-top: 20px;
}
.contact-email {
  font-size: 20px;
  font-weight: 600;
  margin: 24px 0 32px;
}

/* ---------- Footer ---------- */
.footer {
  padding: 56px 0 32px;
  border-top: 1px solid var(--color-border);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 24px;
  padding-bottom: 32px;
}
.footer-logo {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}
.footer-tagline {
  font-size: 14px;
  color: var(--color-text-secondary);
}
.footer-nav {
  display: flex;
  gap: 24px;
}
.footer-nav a {
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: color 0.2s var(--ease);
}
.footer-nav a:hover {
  color: var(--color-text);
}
.footer-biz {
  font-size: 13px;
  color: var(--color-text-secondary);
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  margin-bottom: 4px;
}
.footer-address {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}
.footer-copy {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 1024px) {
  :root {
    --space-section: 120px;
  }
  .service-grid {
    gap: 56px;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: var(--space-section-mobile);
  }
  .container {
    padding: 0 20px;
  }
  .header-inner {
    padding: 16px 20px;
  }
  .nav {
    gap: 20px;
  }
  .nav a {
    font-size: 13px;
  }
  .hero {
    padding: 140px 0 96px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .br-mobile {
    display: inline;
  }
  .service-grid {
    grid-template-columns: 1fr;
  }
  .service-visual {
    order: -1;
  }
  .value-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-inner {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 20px;
  }
  .phone-mockup {
    width: 220px;
  }
}