/* ==========================================================================
   더 타이즈 (THE TIES) - Official Site Stylesheet
   Modern Editorial & Tech Aesthetic for GitHub Pages
   ========================================================================== */

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

:root {
  --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, 'Helvetica Neue', 'Segoe UI', 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  
  /* Color Palette */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(99, 102, 241, 0.35);

  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  
  --accent-primary: #6366f1;
  --accent-primary-hover: #4f46e5;
  --accent-secondary: #06b6d4;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
  --accent-gradient-teal: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 35px rgba(99, 102, 241, 0.18);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --container-max: 1140px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  scroll-behavior: smooth;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
  position: relative;
}

.section-alt {
  background-color: rgba(17, 24, 39, 0.5);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  margin-bottom: 56px;
  text-align: center;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #a5b4fc;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.3;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto;
  word-break: keep-all;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11, 15, 25, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(11, 15, 25, 0.95);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.brand-text {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: #fff;
}

.brand-tag {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-dim);
  border-left: 1px solid var(--border-color);
  padding-left: 8px;
  margin-left: 4px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
}

.nav-links a:hover {
  color: #fff;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: var(--accent-primary);
  color: #fff !important;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: var(--transition);
}

.nav-cta:hover {
  background: var(--accent-primary-hover);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--text-main);
}

/* Hero Section */
.hero {
  padding-top: 170px;
  padding-bottom: 110px;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.hero-glow {
  position: absolute;
  top: 15%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 400px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.22) 0%, rgba(6, 182, 212, 0.08) 50%, transparent 75%);
  filter: blur(70px);
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 0 auto;
}

.hero-logo-box {
  width: 90px;
  height: 90px;
  margin: 0 auto 28px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  padding: 12px;
  box-shadow: var(--shadow-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: float 4s ease-in-out infinite;
}

.hero-logo-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 24px;
  color: #fff;
}

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

.hero-philosophy {
  font-size: 1.2rem;
  line-height: 1.8;
  color: #e2e8f0;
  margin-bottom: 32px;
  word-break: keep-all;
  font-weight: 400;
}

.hero-philosophy strong {
  color: #fff;
  font-weight: 700;
}

.hero-slogan-box {
  display: inline-block;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 28px;
  margin-bottom: 40px;
}

.hero-slogan {
  font-size: 1.05rem;
  font-weight: 500;
  color: #cbd5e1;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-weight: 600;
  transition: var(--transition);
}

.btn-primary {
  background: var(--accent-primary);
  color: #fff;
  box-shadow: 0 4px 18px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  background: var(--accent-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 60px;
}

.about-text-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: blur(12px);
}

.about-text-card p {
  color: #d1d5db;
  font-size: 1.05rem;
  line-height: 1.85;
  margin-bottom: 20px;
  word-break: keep-all;
}

.about-text-card p:last-child {
  margin-bottom: 0;
}

.value-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.value-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
}

.value-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  transform: translateX(4px);
}

.value-icon {
  font-size: 1.75rem;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.value-info h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.value-info p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Logo Showcase */
.logo-showcase {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
}

.logo-showcase-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.logo-showcase-desc {
  font-size: 0.95rem;
  color: var(--text-dim);
  margin-bottom: 32px;
}

.logo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  max-width: 720px;
  margin: 0 auto;
}

.logo-box {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.logo-box img {
  height: 90px;
  width: auto;
  object-fit: contain;
}

.logo-box span {
  font-size: 0.85rem;
  font-weight: 600;
  color: #4b5563;
}

/* Books Section */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(480px, 1fr));
  gap: 36px;
}

.book-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  backdrop-filter: blur(12px);
}

.book-card:hover {
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.book-card-main {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 28px;
  padding: 32px;
}

.book-cover-wrap {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  aspect-ratio: 1 / 1.42;
  background: #1e293b;
}

.book-cover-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.book-card:hover .book-cover-wrap img {
  transform: scale(1.04);
}

.book-details {
  display: flex;
  flex-direction: column;
}

.book-badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 700;
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.book-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.35;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.book-subtitle {
  font-size: 0.95rem;
  color: #94a3b8;
  line-height: 1.5;
  margin-bottom: 16px;
  word-break: keep-all;
}

.book-meta {
  margin-top: auto;
  font-size: 0.85rem;
  color: var(--text-dim);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.book-meta-item strong {
  color: #cbd5e1;
}

.book-card-desc {
  padding: 0 32px 24px;
  font-size: 0.92rem;
  color: #9ca3af;
  line-height: 1.7;
  word-break: keep-all;
  border-bottom: 1px solid var(--border-color);
}

.book-links {
  padding: 20px 32px;
  background: rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: #e5e7eb;
}

.store-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.25);
}

.store-btn.highlight {
  background: rgba(99, 102, 241, 0.15);
  border-color: rgba(99, 102, 241, 0.35);
  color: #a5b4fc;
}

.store-btn.highlight:hover {
  background: var(--accent-primary);
  color: #fff;
}

/* Articles & Columns Section */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.article-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.article-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.article-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.45;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.article-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
  color: #818cf8;
}

.article-footer span:last-child {
  transition: transform 0.2s ease;
}

.article-card:hover .article-footer span:last-child {
  transform: translateX(4px);
}

/* Recruit Section */
.recruit-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.recruit-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 380px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 40px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.recruit-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-highlight);
}

.recruit-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  transition: transform 0.5s ease;
  filter: brightness(0.4) saturate(1.1);
}

.recruit-card:hover .recruit-bg {
  transform: scale(1.05);
  filter: brightness(0.45) saturate(1.2);
}

.recruit-content {
  position: relative;
  z-index: 1;
}

.recruit-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  color: #fbbf24;
  background: rgba(251, 191, 36, 0.15);
  border: 1px solid rgba(251, 191, 36, 0.3);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.recruit-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.recruit-desc {
  font-size: 0.95rem;
  color: #e2e8f0;
  line-height: 1.6;
  margin-bottom: 24px;
  word-break: keep-all;
}

/* Bookstore Links Bar */
.bookstore-bar {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
  text-align: center;
  margin-top: 50px;
}

.bookstore-bar-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.bookstore-bar-desc {
  font-size: 0.9rem;
  color: var(--text-dim);
  margin-bottom: 24px;
}

.bookstore-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.bookstore-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  color: #f3f4f6;
  transition: var(--transition);
}

.bookstore-btn:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* Contact & Location Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.contact-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 1rem;
  color: #d1d5db;
}

.contact-item-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-item a:hover {
  color: #818cf8;
  text-decoration: underline;
}

/* Map / Directions Card */
.location-box {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-top: 24px;
}

.location-address {
  font-size: 0.95rem;
  color: #e5e7eb;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

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

.map-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition);
}

.map-btn-kakao {
  background: #fee500;
  color: #191919;
}

.map-btn-kakao:hover {
  background: #fada0a;
}

.map-btn-naver {
  background: #03c75a;
  color: #ffffff;
}

.map-btn-naver:hover {
  background: #02b350;
}

/* SNS List */
.sns-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 16px;
}

.sns-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: #d1d5db;
  transition: var(--transition);
}

.sns-item:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

/* Footer */
.footer {
  background: #080b12;
  border-top: 1px solid var(--border-color);
  padding: 60px 0 36px;
  margin-top: auto;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border-color);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-bottom {
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .about-grid,
  .contact-grid,
  .recruit-grid {
    grid-template-columns: 1fr;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: #0f172a;
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    display: none;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .hero {
    padding-top: 130px;
    padding-bottom: 70px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-philosophy {
    font-size: 1.05rem;
  }

  .book-card-main {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .book-cover-wrap {
    width: 160px;
    margin: 0 auto;
  }

  .book-badge {
    align-self: center;
  }

  .book-meta {
    align-items: center;
  }

  .book-links {
    justify-content: center;
  }

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

  .recruit-card {
    height: 340px;
    padding: 28px;
  }

  .sns-list {
    grid-template-columns: 1fr;
  }
}