/**
 * NeuTeam Creative Bold Theme
 * 투명성, 자율성, 협력적 성장을 표현하는 디자인
 */

/* ============================================
   1. CSS Variables - Creative Bold 색상 팔레트
   ============================================ */

:root {
  /* Primary Colors */
  --color-primary: #7C3AED;           /* 보라 - 혁신과 창의성 */
  --color-primary-dark: #6D28D9;
  --color-primary-light: #A78BFA;
  
  /* Secondary Colors */
  --color-secondary: #10B981;         /* 청록 - 성장과 미래 */
  --color-secondary-dark: #059669;
  --color-secondary-light: #34D399;
  
  /* Accent */
  --color-accent: #F59E0B;            /* 앰버 - 에너지와 열정 */
  --color-accent-dark: #D97706;
  --color-accent-light: #FBBF24;
  
  /* Backgrounds */
  --color-bg-primary: #0F172A;        /* 다크 네이비 - 전문성 */
  --color-bg-secondary: #1E293B;      /* 슬레이트 */
  --color-bg-tertiary: #334155;
  
  /* Text */
  --color-text-primary: #F1F5F9;      /* 라이트 그레이 */
  --color-text-secondary: #CBD5E1;
  --color-text-muted: #94A3B8;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
  --gradient-hero: linear-gradient(180deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 41, 59, 0.98) 100%);
  
  /* Typography */
  --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Spacing (60% reduced for compact design) */
  --spacing-xs: 0.3rem;
  --spacing-sm: 0.6rem;
  --spacing-md: 0.9rem;
  --spacing-lg: 1.2rem;
  --spacing-xl: 1.8rem;
  --spacing-2xl: 2.4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 30px rgba(124, 58, 237, 0.3);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

/* ============================================
   2. Base Styles
   ============================================ */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  overflow-x: hidden;
}

/* ============================================
   3. Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-secondary);
}

strong {
  font-weight: 600;
  color: var(--color-text-primary);
}

/* ============================================
   4. Layout
   ============================================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-2xl) 0;
}

/* ============================================
   5. Header & Navigation
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--gradient-hero);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(124, 58, 237, 0.2);
  padding: 0.6rem 0;
}

.site-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-link {
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: all var(--transition-base);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--color-text-primary);
}

.nav-link:hover::after {
  width: 100%;
}

/* ============================================
   6. Hero Section
   ============================================ */

.hero {
  position: relative;
  padding: var(--spacing-2xl) 0;
  background: var(--gradient-hero);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 200%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.1) 0%, transparent 70%);
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 0.8; }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-title {
  margin-bottom: var(--spacing-md);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

/* ============================================
   7. Post Cards
   ============================================ */

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.2rem;
  margin-top: 0;
}

.post-card {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  border: 1px solid transparent;
  position: relative;
}

.post-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 2px;
  background: var(--gradient-primary);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none; /* 클릭 이벤트가 아래 요소로 전달되도록 */
}

.post-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.post-card:hover::before {
  opacity: 1;
}

.post-card-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.post-card-content {
  padding: 1rem;
}

.post-card-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.post-card-excerpt {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.post-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ============================================
   8. CTA Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  color: white;
}

.btn-secondary {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-primary);
}

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

.btn-accent {
  background: var(--gradient-accent);
  color: white;
}

/* ============================================
   9. Footer
   ============================================ */

.site-footer {
  background: var(--color-bg-secondary);
  padding: 1.5rem 0 0.8rem;
  margin-top: 1.5rem;
  border-top: 1px solid rgba(124, 58, 237, 0.2);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.footer-section h4 {
  margin-bottom: var(--spacing-md);
  color: var(--color-primary-light);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.35rem;
}

.footer-bottom {
  text-align: center;
  margin-top: 1.2rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--color-bg-tertiary);
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* ============================================
   10. Responsive Design
   ============================================ */

@media (max-width: 768px) {
  .post-grid {
    grid-template-columns: 1fr;
  }
  
  .nav-menu {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .hero {
    padding: var(--spacing-xl) 0;
  }
}

/* ============================================
   11. Animations
   ============================================ */

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

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* ============================================
   12. Utility Classes
   ============================================ */

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

/* ============================================
   13. Compact Hero (New)
   ============================================ */

.hero-compact {
  background: var(--gradient-hero);
  padding: 1.2rem 0 0.9rem;
  border-bottom: 1px solid var(--color-bg-tertiary);
}

.hero-compact-title {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-compact-description {
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 800px;
  line-height: 1.6;
}

/* ============================================
   14. Posts Section (Redesigned)
   ============================================ */

.posts-section {
  padding: 1.2rem 0;
}

.posts-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.2rem;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.posts-header h2 {
  font-size: 1.5rem;
  margin: 0;
}

.posts-filter {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.filter-tag {
  padding: 0.375rem 0.875rem;
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  text-decoration: none;
  transition: all var(--transition-base);
  border: 1px solid transparent;
}

.filter-tag:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-primary-light);
  border-color: var(--color-primary);
}

.post-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.post-meta-date {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.post-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-bg-tertiary);
}

.reading-time {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.read-more {
  color: var(--color-primary-light);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.875rem;
  transition: color var(--transition-base);
}

.read-more:hover {
  color: var(--color-primary);
}

.pagination-wrapper {
  margin-top: 3rem;
  text-align: center;
}

/* ============================================
   15. About Page
   ============================================ */

.about-page {
  padding: 1.2rem 0 2.4rem;
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.about-hero {
  text-align: center;
  margin-bottom: 1.8rem;
  padding-bottom: 1.2rem;
  border-bottom: 2px solid var(--color-bg-tertiary);
}

.about-title {
  font-size: 2.5rem;
  font-family: var(--font-heading);
  margin-bottom: 1rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-excerpt {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.about-content {
  margin-bottom: 1.8rem;
  font-size: 1.0625rem;
  line-height: 1.8;
}

.about-content p {
  margin-bottom: 0.9rem;
}

.about-mission {
  margin-bottom: 2.4rem;
}

.about-mission h2 {
  text-align: center;
  margin-bottom: 1.2rem;
  font-size: 1.75rem;
}

.mission-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.mission-card {
  background: var(--color-bg-secondary);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  text-align: center;
  transition: transform var(--transition-base);
}

.mission-card:hover {
  transform: translateY(-4px);
}

.mission-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.mission-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
  color: var(--color-primary-light);
}

.mission-card p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.about-topics {
  margin-bottom: 2.4rem;
}

.about-topics h2 {
  margin-bottom: 1.2rem;
  font-size: 1.75rem;
}

.topics-list {
  display: grid;
  gap: 1.5rem;
}

.topic-item {
  background: var(--color-bg-secondary);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border-left: 3px solid var(--color-primary);
}

.topic-item h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  color: var(--color-primary-light);
}

.topic-item p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

.about-story {
  margin-bottom: 2.4rem;
}

.about-story h2 {
  margin-bottom: 0.9rem;
  font-size: 1.75rem;
}

.story-content {
  background: var(--color-bg-secondary);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-secondary);
}

.story-content p {
  margin-bottom: 1.25rem;
  line-height: 1.8;
}

.story-content p:last-child {
  margin-bottom: 0;
}

.about-services {
  margin-bottom: 2.4rem;
  padding: 1.2rem;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
}

.about-services h2 {
  margin-bottom: 0.6rem;
  font-size: 1.5rem;
}

.services-intro {
  margin-bottom: 1.2rem;
  color: var(--color-text-secondary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.9rem;
  margin-bottom: 1.2rem;
}

.service-card {
  padding: 1.25rem;
  background: var(--color-bg-primary);
  border-radius: var(--radius-md);
}

.service-card h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--color-primary-light);
}

.service-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.5;
}

.services-cta {
  text-align: center;
}

.about-newsletter {
  text-align: center;
  padding: 1.2rem;
  background: var(--gradient-hero);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-bg-tertiary);
}

.about-newsletter h2 {
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}

.about-newsletter p {
  margin-bottom: 0.9rem;
  color: var(--color-text-secondary);
}

/* ============================================
   16. Updated Footer
   ============================================ */

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-main {
  flex: 1;
  min-width: 250px;
}

.footer-main h4 {
  margin-bottom: 0.75rem;
  color: var(--color-primary-light);
}

.footer-main p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.footer-links-group {
  display: flex;
  gap: 2.5rem;
}

.footer-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: var(--transition-fast);
  display: inline-block;
}

.footer-links a:hover {
  color: var(--color-primary-light);
  transform: translateX(2px);
}

.footer-column h4 {
  margin-bottom: 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  pointer-events: none;
}

/* ============================================
   17. Ghost Koenig Editor Styles
   ============================================ */

/* Wide and Full Width Images */
.kg-width-wide {
  position: relative;
  width: 85vw;
  min-width: 100%;
  margin: 2rem auto;
  transform: translateX(-50%);
  left: 50%;
}

.kg-width-full {
  position: relative;
  width: 100vw;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
}

/* Responsive adjustments */
@media (max-width: 1200px) {
  .kg-width-wide {
    width: 100%;
    transform: none;
    left: auto;
  }
}

/* ============================================
   18. Navigation Updates
   ============================================ */

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-cta {
  background: var(--gradient-primary);
  color: white !important;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 600;
}

.nav-cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* ============================================
   18. Responsive Updates
   ============================================ */

@media (max-width: 768px) {
  .hero-compact {
    padding: 1.5rem 0 1rem;
  }
  
  .hero-compact-title {
    font-size: 1.5rem;
  }
  
  .hero-compact-description {
    font-size: 0.9375rem;
  }
  
  .posts-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .mission-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-links-group {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .about-title {
    font-size: 2rem;
  }
}