/* ===== CSS Variables & Reset ===== */
:root {
  --bg-primary: #FFF9F2;
  --bg-secondary: #FFF5EE;
  --bg-glass: rgba(255,240,248,0.65);
  --border-glass: rgba(200,170,220,0.3);
  --border-subtle: rgba(200,170,220,0.15);
  --text-primary: #2D1B4E;
  --text-secondary: #8E7BA8;
  --text-accent: #9B6DFF;
  --violet-500: #A78BFA;
  --violet-600: #8B5CF6;
  --purple-500: #C084FC;
  --amber-500: #F5A623;
  --cyan-500: #67D4E8;
  --gold: #F5A623;
  --font-serif: 'Noto Serif KR', serif;
  --font-sans: 'Noto Sans KR', sans-serif;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 999px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-tap-highlight-color: transparent; }
body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  padding-bottom: 64px; /* tab bar space */
}

::selection { background: rgba(167,139,250,0.25); color: var(--text-primary); }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: rgba(200,170,220,0.4); border-radius: 3px; }

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

/* ===== Text Gradient ===== */
.text-gradient {
  background: linear-gradient(135deg, #A78BFA 0%, #E9A8FF 30%, #F5A623 70%, #A78BFA 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ===== Glass Card ===== */
.luna-glass {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
}

/* ===== Buttons ===== */
.btn-primary {
  display: inline-block;
  padding: 14px 36px;
  border-radius: var(--radius-full);
  font-weight: 500;
  font-size: 16px;
  color: white;
  background: linear-gradient(135deg, var(--violet-500), var(--violet-600), var(--purple-500));
  border: none;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(167,139,250,0.3);
}
.btn-primary:hover {
  box-shadow: 0 8px 32px rgba(167,139,250,0.4);
  transform: translateY(-2px);
}

.btn-outline {
  display: inline-block;
  padding: 14px 36px;
  border-radius: var(--radius-full);
  font-weight: 500;
  font-size: 16px;
  color: var(--text-accent);
  background: none;
  border: 1px solid rgba(167,139,250,0.3);
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
}
.btn-outline:hover {
  border-color: rgba(167,139,250,0.5);
  background: rgba(167,139,250,0.08);
}

.btn-ghost {
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--text-accent);
  background: none;
  border: 1px solid rgba(167,139,250,0.3);
  cursor: pointer;
  transition: all 0.3s;
}
.btn-ghost:hover { border-color: rgba(167,139,250,0.5); background: rgba(167,139,250,0.08); }

/* ===== Section Layout ===== */
.section {
  position: relative;
  padding: 80px 16px;
  background: var(--bg-primary);
}
.section-inner { max-width: 1100px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  margin-bottom: 12px;
}
.section-header p { font-size: 16px; color: var(--text-secondary); }

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: background 0.3s;
}
.header-inner {
  background: rgba(255,249,242,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.3s;
}
.site-header.scrolled .header-inner {
  background: rgba(255,249,242,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; }
.logo-img { width: 36px; height: 36px; border-radius: 0; object-fit: contain; }
.logo-text { font-family: var(--font-serif); font-size: 18px; font-weight: 700; }

.desktop-nav { display: none; align-items: center; gap: 4px; }
.nav-link {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s;
}
.nav-link:hover { color: var(--text-primary); background: rgba(167,139,250,0.1); }
.nav-link.active { color: var(--text-accent); background: rgba(167,139,250,0.12); }

.login-wrap { margin-left: 12px; padding-left: 12px; border-left: 1px solid var(--border-glass); }

.mobile-menu-btn {
  display: flex;
  padding: 8px;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
}
.mobile-menu {
  display: none;
  margin: 4px 8px;
  padding: 16px;
  background: rgba(255,245,250,0.95);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
}
.mobile-menu.open { display: block; }
.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s;
}
.mobile-nav-link:hover { color: var(--text-primary); background: rgba(167,139,250,0.1); }
.mobile-login { margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--border-subtle); }
.btn-full {
  display: block;
  width: 100%;
  padding: 12px;
  border-radius: var(--radius-full);
  font-size: 14px;
  color: white;
  background: linear-gradient(135deg, var(--violet-500), var(--purple-500));
  border: none;
  cursor: pointer;
}

/* ===== Bottom Tab Bar ===== */
.tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  height: 64px;
  background: rgba(255,249,242,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-around;
}
.tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 10px;
  transition: color 0.2s;
  -webkit-tap-highlight-color: transparent;
}
.tab-item.active { color: var(--text-accent); }
.tab-item:hover { color: var(--text-primary); }
.tab-icon { width: 24px; height: 24px; border-radius: 4px; }

/* ===== Page Content Area ===== */
.page-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 16px 40px; /* header space */
}

.page-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  margin-bottom: 8px;
}

.page-desc {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* ===== Placeholder ===== */
.placeholder-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  text-align: center;
}
.placeholder-icon { font-size: 48px; margin-bottom: 16px; }
.placeholder-text { color: var(--text-secondary); font-size: 15px; }

/* ===== Footer ===== */
.site-footer { border-top: 1px solid var(--border-subtle); background: #FFF5EE; }
.footer-inner { max-width: 1200px; margin: 0 auto; padding: 40px 16px; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.footer-brand { grid-column: 1 / -1; }
.footer-brand p { font-size: 13px; color: var(--text-secondary); margin-top: 12px; }
.footer-col h4 { font-size: 13px; color: var(--text-accent); margin-bottom: 10px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 6px; }
.footer-col a { font-size: 13px; color: var(--text-secondary); text-decoration: none; transition: color 0.2s; }
.footer-col a:hover { color: var(--text-primary); }
.footer-business {
  margin-top: 24px; padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}
.footer-business p {
  font-size: 11px; color: var(--text-secondary); line-height: 1.8; margin: 0;
}
.footer-bottom {
  margin-top: 12px; padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  text-align: center; font-size: 11px; color: var(--text-secondary);
}

/* ===== Animations ===== */
.fade-in-up {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-in-up.visible { opacity: 1; transform: translateY(0); }

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Responsive ===== */
@media (min-width: 640px) {
  .section { padding: 100px 24px; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .footer-brand { grid-column: auto; }
}
@media (min-width: 768px) {
  .desktop-nav { display: flex; }
  .mobile-menu-btn { display: none; }
  .tab-bar { display: none; }
  body { padding-bottom: 0; }
}