/* ── TOKENS ───────────────────────────────────────────── */
:root {
  --bg:        #FAFAF9;
  --surface:   #FFFFFF;
  --card:      #F3F4F6;
  --border:    #E5E7EB;
  --accent:    #4F46E5;   /* 시그니처 인디고 */
  --accent2:   #0F766E;   /* 보조 틸 */
  --warn:      #B45309;   /* 전자책 뱃지 */
  --text:      #1A1D23;
  --muted:     #6B7280;
  --radius:    10px;
  --ff-display: 'Space Grotesk', sans-serif;
  --ff-body:    'Noto Sans KR', sans-serif;
}

/* ── RESET ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--ff-body);
  font-size: 15px;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ── LAYOUT HELPERS ───────────────────────────────────── */
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }

/* ── NAV ──────────────────────────────────────────────── */
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250,250,249,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
nav .inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 56px;
}
.logo {
  font-family: var(--ff-display);
  font-size: 20px; font-weight: 700;
  letter-spacing: -.5px;
}
.logo span { color: var(--accent); }
.nav-links { display: flex; gap: 28px; }
.nav-links a {
  font-size: 14px; color: var(--muted);
  transition: color .2s;
}
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--text); font-weight: 700; }
.nav-cta {
  background: var(--accent);
  color: #FFFFFF !important;
  font-weight: 700; font-size: 13px;
  padding: 7px 16px; border-radius: 6px;
}
.hamburger { display: none; cursor: pointer; }

/* ── HERO ─────────────────────────────────────────────── */
.hero {
  padding: 100px 0 80px;
  position: relative; overflow: hidden;
}
.hero-grid {
  display: grid; grid-template-columns: 1fr 420px;
  gap: 60px; align-items: center;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 500;
  color: var(--accent); letter-spacing: .08em;
  text-transform: uppercase;
  background: rgba(79,70,229,.08);
  border: 1px solid rgba(79,70,229,.2);
  padding: 5px 12px; border-radius: 999px;
  margin-bottom: 20px;
}
.hero-eyebrow::before {
  content: '';
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; } 50% { opacity: .3; }
}
.hero h1 {
  font-family: var(--ff-display);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700; line-height: 1.2;
  letter-spacing: -.03em;
  margin-bottom: 20px;
}
.hero h1 em {
  font-style: normal; color: var(--accent);
}
.hero-desc {
  color: var(--muted); font-size: 16px;
  line-height: 1.8; margin-bottom: 36px;
  max-width: 460px;
}
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-primary {
  background: var(--accent); color: #FFFFFF;
  font-weight: 700; font-size: 15px;
  padding: 13px 28px; border-radius: var(--radius);
  transition: opacity .2s, transform .15s;
  display: inline-block;
}
.btn-primary:hover { opacity: .88; transform: translateY(-1px); }
.btn-secondary {
  background: transparent;
  border: 1px solid var(--border); color: var(--text);
  font-size: 15px; padding: 13px 28px;
  border-radius: var(--radius);
  transition: border-color .2s;
  display: inline-block;
}
.btn-secondary:hover { border-color: var(--muted); }

/* hero stats */
.hero-stats {
  display: flex; gap: 32px; margin-top: 48px;
}
.stat-item { }
.stat-num {
  font-family: var(--ff-display);
  font-size: 28px; font-weight: 700;
  color: var(--text);
}
.stat-num span { color: var(--accent); }
.stat-label { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* hero card */
.hero-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(17,24,39,.06);
}
.hero-card-header {
  background: var(--card);
  padding: 16px 20px;
  display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid var(--border);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-r { background: #FF5F57; }
.dot-y { background: #FFBD2E; }
.dot-g { background: #28CA41; }
.hero-card-title {
  font-size: 13px; color: var(--muted);
  margin-left: 4px;
}
.hero-card-body { padding: 24px 20px; }
.product-card-mini {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 10px;
  display: flex; align-items: center; gap: 14px;
}
.product-card-mini:last-child { margin-bottom: 0; }
.product-icon {
  width: 40px; height: 40px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
}
.icon-navy { background: #3730A3; }
.icon-teal { background: #115E59; }
.product-name { font-size: 13px; font-weight: 500; }
.product-price {
  font-size: 12px; color: var(--accent);
  font-weight: 700; margin-top: 2px;
}
.product-badge {
  margin-left: auto;
  background: rgba(180,83,9,.12);
  color: var(--warn);
  font-size: 11px; font-weight: 700;
  padding: 3px 8px; border-radius: 4px;
}

/* ── SECTION LABEL ────────────────────────────────────── */
.section-label {
  font-size: 12px; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 10px;
}
.section-title {
  font-family: var(--ff-display);
  font-size: clamp(22px, 3vw, 36px);
  font-weight: 700; letter-spacing: -.02em;
  line-height: 1.25;
  margin-bottom: 14px;
}
.section-sub { color: var(--muted); font-size: 15px; }

/* ── DIVIDER ──────────────────────────────────────────── */
.divider { border: none; border-top: 1px solid var(--border); }

/* ── AD SLOT ──────────────────────────────────────────── */
.ad-slot {
  background: var(--card);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 13px;
  min-height: 90px;
  margin: 32px 0;
}

/* ── BREADCRUMB ───────────────────────────────────────── */
.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 20px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }

/* ── PRODUCTS ─────────────────────────────────────────── */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}
.pcard {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.pcard:hover {
  transform: translateY(-4px);
  border-color: rgba(79,70,229,.35);
  box-shadow: 0 12px 28px rgba(17,24,39,.08);
}
.pcard-thumb {
  width: 100%; aspect-ratio: 16/9;
  display: flex; align-items: center; justify-content: center;
  font-size: 32px;
  position: relative;
}
.pcard-thumb.navy { background: linear-gradient(135deg, #312E81 0%, #4338CA 100%); }
.pcard-thumb.teal { background: linear-gradient(135deg, #134E4A 0%, #115E59 100%); }
.pcard-thumb.white { background: linear-gradient(135deg, #F3F4F6 0%, #E5E7EB 100%); }
.pcard-thumb.green { background: linear-gradient(135deg, #03C75A 0%, #02A94D 100%); }
.pcard-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pcard-thumb-tag {
  position: absolute; top: 10px; left: 10px;
  background: var(--accent); color: #FFFFFF;
  font-size: 10px; font-weight: 700;
  padding: 3px 8px; border-radius: 4px;
}
.pcard-body { padding: 18px 18px 20px; }
.pcard-category {
  font-size: 11px; color: var(--accent);
  font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; margin-bottom: 6px;
}
.pcard-title { font-size: 15px; font-weight: 700; line-height: 1.4; margin-bottom: 8px; display: block; }
.pcard-title:hover { color: var(--accent); }
.pcard-desc { font-size: 13px; color: var(--muted); margin-bottom: 16px; line-height: 1.6; }
.pcard-footer {
  display: flex; align-items: center; justify-content: space-between;
}
.pcard-price {
  font-family: var(--ff-display);
  font-size: 18px; font-weight: 700; color: var(--text);
}
.pcard-price small {
  font-size: 12px; color: var(--muted);
  font-weight: 400; margin-left: 2px;
}
.pcard-price-original {
  font-size: 12px; color: var(--muted);
  font-weight: 400; text-decoration: line-through;
  margin-left: 6px;
}
.pcard-btn {
  background: var(--accent); color: #FFFFFF;
  font-size: 13px; font-weight: 700;
  padding: 8px 16px; border-radius: 6px;
  transition: opacity .2s;
}
.pcard-btn:hover { opacity: .82; }

/* ── PRODUCT DETAIL ───────────────────────────────────── */
.detail-grid {
  display: grid; grid-template-columns: 420px 1fr;
  gap: 48px; margin-top: 32px; align-items: start;
}
.detail-thumb {
  border-radius: 16px; overflow: hidden;
  border: 1px solid var(--border);
  position: sticky; top: 80px;
}
.detail-thumb img { width: 100%; display: block; }
.detail-price-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px; margin-top: 28px;
}
.feature-list { list-style: none; margin: 20px 0; display: flex; flex-direction: column; gap: 10px; }
.feature-list li { font-size: 14px; color: var(--text); padding-left: 22px; position: relative; }
.feature-list li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.related-label { font-size: 13px; font-weight: 700; color: var(--muted); letter-spacing: .06em; text-transform: uppercase; margin: 60px 0 20px; }

/* ── POSTS ────────────────────────────────────────────── */
.posts-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  margin-top: 40px;
}
.post-list { display: flex; flex-direction: column; gap: 20px; }
.post-item {
  display: flex; gap: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px; padding: 20px;
  transition: border-color .2s, box-shadow .2s;
}
.post-item:hover { border-color: rgba(79,70,229,.25); box-shadow: 0 8px 20px rgba(17,24,39,.06); }
.post-num {
  font-family: var(--ff-display);
  font-size: 32px; font-weight: 700;
  color: var(--border); line-height: 1;
  flex-shrink: 0; padding-top: 2px;
}
.post-meta-top {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 6px;
}
.tag {
  font-size: 11px; font-weight: 600;
  padding: 2px 8px; border-radius: 4px;
}
.tag-marketing { background: rgba(79,70,229,.1); color: var(--accent); }
.tag-product   { background: rgba(15,118,110,.1); color: var(--accent2); }
.tag-life      { background: rgba(180,83,9,.1); color: var(--warn); }
.post-title { font-size: 15px; font-weight: 600; margin-bottom: 6px; line-height: 1.5; }
.post-excerpt { font-size: 13px; color: var(--muted); line-height: 1.6; }
.post-date { font-size: 12px; color: var(--muted); margin-top: 8px; }

/* sidebar */
.sidebar { display: flex; flex-direction: column; gap: 20px; }
.sidebar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px; padding: 20px;
}
.sidebar-title {
  font-size: 13px; font-weight: 700;
  color: var(--muted); letter-spacing: .06em;
  text-transform: uppercase; margin-bottom: 14px;
}
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud a {
  font-size: 12px; padding: 4px 10px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 6px; color: var(--muted);
  transition: color .2s, border-color .2s;
}
.tag-cloud a:hover { color: var(--accent); border-color: var(--accent); }

/* ── ABOUT ────────────────────────────────────────────── */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px; align-items: center;
  margin-top: 40px;
}
.about-label {
  display: inline-block;
  background: rgba(79,70,229,.08);
  color: var(--accent);
  font-size: 12px; font-weight: 700;
  padding: 4px 10px; border-radius: 4px;
  margin-bottom: 16px;
}
.about-title {
  font-family: var(--ff-display);
  font-size: clamp(20px, 2.5vw, 30px);
  font-weight: 700; line-height: 1.35;
  margin-bottom: 16px;
}
.about-body { color: var(--muted); font-size: 15px; line-height: 1.8; }
.skills-list { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 8px; }
.skill-chip {
  font-size: 12px; font-weight: 600;
  padding: 5px 12px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--muted);
}
.about-right {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px; padding: 28px;
}
.career-row {
  display: flex; gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.career-row:last-child { border-bottom: none; }
.career-year {
  font-size: 12px; color: var(--accent); font-weight: 700;
  min-width: 60px; padding-top: 2px;
}
.career-content { font-size: 14px; line-height: 1.6; }
.career-content strong { font-weight: 600; }
.career-content span { display: block; font-size: 12px; color: var(--muted); margin-top: 2px; }

/* ── CTA BAND ─────────────────────────────────────────── */
.cta-band {
  background: linear-gradient(135deg, rgba(79,70,229,.06) 0%, rgba(15,118,110,.06) 100%);
  border: 1px solid rgba(79,70,229,.15);
  border-radius: 20px;
  padding: 56px 48px;
  text-align: center;
  margin: 80px 0;
}
.cta-band h2 {
  font-family: var(--ff-display);
  font-size: clamp(22px, 3vw, 36px);
  font-weight: 700; margin-bottom: 12px;
}
.cta-band p { color: var(--muted); font-size: 16px; margin-bottom: 28px; }
.cta-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ── FOOTER ───────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
}
.footer-logo { font-family: var(--ff-display); font-weight: 700; font-size: 17px; }
.footer-logo span { color: var(--accent); }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { font-size: 13px; color: var(--muted); }
.footer-links a:hover { color: var(--text); }
.footer-copy { font-size: 12px; color: var(--muted); margin-top: 16px; text-align: center; }

/* ── MOBILE ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .hero-grid, .about-grid, .detail-grid { grid-template-columns: 1fr; }
  .hero-card { display: none; }
  .detail-thumb { position: static; }
  .products-grid { grid-template-columns: 1fr; }
  .posts-layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
  .nav-links { display: none; }
  .hamburger { display: block; }
  .hero-stats { gap: 20px; }
  .cta-band { padding: 36px 24px; }
}