/* Import fonts for better Korean typography */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;700;900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+KR:wght@400;500;600;700&display=swap');

/* CSS Variables for Design System */
:root {
  /* Colors */
  --primary: #0A0A23;
  --accent: #0057FF;
  --neutral-50: #F5F7FA;
  --neutral-100: #E5E8EC;
  --neutral-200: #D1D5DB;
  --neutral-400: #9CA3AF;
  --neutral-600: #6B7280;
  --neutral-800: #374151;
  --white: #FFFFFF;
  
  /* Typography */
  --font-serif: 'Noto Serif KR', serif;
  --font-sans: 'IBM Plex Sans KR', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-full: 9999px;
  
  /* 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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.25s ease-out;
  --transition-slow: 0.35s ease-out;
}

/* Reset and Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--primary);
  background-color: var(--neutral-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Top Bar (날짜·지난 7일) */
.headline-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-xl);
  background-color: var(--neutral-50);
  border-bottom: 1px solid var(--neutral-100);
}

.headline-bar .logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: -0.025em;
}

.headline-bar .nav-date {
  font-size: 0.875rem;
  color: var(--neutral-600);
  font-weight: 500;
}

.date-range-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid var(--neutral-200);
  background: var(--white);
  color: var(--neutral-800);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.date-range-btn:hover {
  background: var(--neutral-100);
  border-color: var(--neutral-400);
}

.date-range-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

/* Navigation Bar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--spacing-xl);
  height: 64px;
  background: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
}

.nav-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-link {
  text-decoration: none;
  color: var(--neutral-600);
  font-weight: 500;
  font-size: 0.875rem;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  position: relative;
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary);
  background: var(--neutral-50);
}

.nav-link.active {
  color: var(--accent);
  background: rgba(0, 87, 255, 0.1);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -16px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background: var(--accent);
  border-radius: var(--radius-full);
}

/* Subscribe Button (Coffee Donation) */
.subscribe-btn,
.region-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  background: var(--accent);
  color: var(--white);
  text-decoration: none;
  border: none;
  border-radius: var(--radius-full);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.2;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  animation: pulse 3s infinite;
}

/* 다른지역뉴스 버튼 (노란색) */
.region-btn {
  background: #FFD600;
  color: #222;
  margin-right: 1rem;
}
.region-btn:hover {
  background: #FFC400;
}

.subscribe-btn:hover {
  background: #0047CC;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.02); }
}

/* ===== 다른지역뉴스 모달 ===== */
#region-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.region-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 35, 0.5);
  backdrop-filter: blur(2px);
}
.region-modal-content {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 400px;
  width: 90vw;
  padding: var(--spacing-2xl) var(--spacing-xl);
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  animation: modalSlideIn var(--transition-normal) ease-out;
}
.region-modal-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  text-align: center;
}
.region-modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: var(--neutral-100);
  border: none;
  border-radius: var(--radius-full);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--neutral-600);
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 20;
}
.region-modal-close:hover {
  background: var(--neutral-200);
  color: var(--primary);
}
.region-modal-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}
.region-modal-form label {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  font-size: 1rem;
  font-weight: 500;
  position: relative;
  overflow: visible;
}
.region-state-select,
.region-city-input,
.region-email-input {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-full);
  font-size: 1rem;
  margin-top: var(--spacing-xs);
  outline: none;
  transition: border-color var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background: var(--white);
}
.region-state-select:focus,
.region-city-input:focus,
.region-email-input:focus {
  border-color: var(--accent);
}
.region-modal-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
}
.region-modal-search-btn,
.region-modal-cancel-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-full);
  border: none;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.region-modal-search-btn {
  background: var(--accent);
  color: var(--white);
}
.region-modal-search-btn:hover {
  background: #0047CC;
}
.region-modal-cancel-btn {
  background: var(--neutral-100);
  color: var(--neutral-800);
}
.region-modal-cancel-btn:hover {
  background: var(--neutral-200);
}
.region-city-autocomplete {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  min-width: 200px;
  background: var(--white);
  border: 2px solid var(--accent);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 30;
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 220px;
  overflow-y: auto;
  font-size: 1rem;
}
.region-city-autocomplete li {
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  font-size: 1rem;
}
.region-city-autocomplete li:hover,
.region-city-autocomplete li.active {
  background: var(--neutral-100);
}

/* Mobile Navigation Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 20px;
  background: var(--primary);
  border-radius: var(--radius-full);
  margin: 2px 0;
  transition: all var(--transition-normal);
}

/* Main Content */
main {
  max-width: 1440px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-xl);
}

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

/* Article Cards */
.card {
  background: var(--white);
  border: 1px solid var(--neutral-100);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.card:hover .card-image {
  transform: scale(1.05);
}

.card-image-placeholder {
  width: 100%;
  height: 200px;
  background: linear-gradient(90deg, var(--neutral-100) 25%, var(--neutral-200) 50%, var(--neutral-100) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neutral-400);
  font-size: 0.875rem;
}

.card-image-placeholder::after {
  content: '이미지 로딩 중...';
}

.card-body {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* Category Pills */
.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--neutral-100);
  color: var(--primary);
  border-radius: var(--radius-full);
  width: fit-content;
  margin-bottom: var(--spacing-sm);
}

/* Card Titles */
.card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Card Descriptions */
.card-desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--neutral-600);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-grow: 1;
}

/* Card Footer */
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--neutral-100);
}

.media-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.media-logo {
  width: 20px;
  height: 20px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.media-name {
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--primary);
}

.time {
  font-size: 0.75rem;
  color: var(--neutral-400);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.time::before {
  content: '•';
  color: var(--neutral-400);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.card-click-count {
  font-size: 0.75rem;
  color: var(--neutral-400);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* Trust Badge for Credible Sources */
.trust-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  background: var(--accent);
  color: var(--white);
  border-radius: 50%;
  font-size: 10px;
  font-weight: 700;
  margin-left: var(--spacing-xs);
  line-height: 1;
}

/* Modal Styles */
.detail-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 35, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(4px);
  transition: all var(--transition-normal);
}

.detail-modal {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 500px;
  width: 90vw;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  animation: modalSlideIn var(--transition-normal) ease-out;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.detail-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: var(--neutral-100);
  border: none;
  border-radius: var(--radius-full);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--neutral-600);
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 10;
}

.detail-close:hover {
  background: var(--neutral-200);
  color: var(--primary);
}

.detail-content {
  padding: var(--spacing-2xl);
}

.detail-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: 0;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--primary);
  color: var(--white);
  text-decoration: none;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.read-more:hover {
  background: var(--neutral-800);
  transform: translateY(-1px);
}

/* 모달 닫기 버튼 스타일 */
.modal-close-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: var(--radius-full);
  padding: var(--spacing-md) var(--spacing-lg);
  font-weight: 600;
  font-size: 0.875rem;
  margin-left: 12px;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.modal-close-btn:hover {
  background: var(--neutral-800);
  transform: translateY(-1px);
}

/* 모달 하단 버튼 그룹 정렬 */
.modal-footer-btns {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Modal Footer */
.modal-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--neutral-100);
}

.click-count {
  font-size: 0.875rem;
  color: var(--neutral-400);
}

/* Responsive Design */
@media (max-width: 1279px) {
  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }
}

@media (max-width: 959px) {
  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--spacing-lg);
  }
  
  main {
    padding: var(--spacing-xl) var(--spacing-md);
  }
  
  .navbar {
    padding: 0 var(--spacing-md);
  }
}

@media (max-width: 599px) {
  .card-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .headline-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-sm);
  }
  
  .headline-bar .logo {
    font-size: 1.75rem;
    font-weight: 900;
  }
  
  .headline-bar .nav-date {
    font-size: 1.125rem;
  }
  
  .nav-left {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-md);
    flex-direction: column;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
  }
  
  .nav-left.open {
    display: flex;
  }
  
  .nav-link {
    font-size: 1.125rem;
    padding: var(--spacing-md);
    font-weight: 600;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .subscribe-btn,
  .region-btn {
    animation: none; /* Disable pulse on mobile */
    font-size: 1rem !important;
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 700;
  }
  
  /* Hide category badges on mobile */
  .badge {
    display: none;
  }
  
  .card-body {
    padding: var(--spacing-lg) var(--spacing-md);
    gap: var(--spacing-md);
  }
  
  .card-title {
    font-size: 1.5rem;
    line-height: 1.4;
    font-weight: 700;
    -webkit-line-clamp: 3;
    margin-bottom: var(--spacing-sm);
  }
  
  .card-desc {
    font-size: 1.125rem;
    line-height: 1.6;
    font-weight: 400;
    -webkit-line-clamp: 4;
  }
  
  .card-footer {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
  }
  
  .media-name {
    font-size: 1rem;
    font-weight: 600;
  }
  
  .time, .card-click-count {
    font-size: 1rem;
  }
  
  main {
    padding: var(--spacing-lg) var(--spacing-sm);
  }
  
  .detail-modal {
    width: 95vw;
    max-height: 90vh;
  }
  
  .detail-content {
    padding: var(--spacing-lg) var(--spacing-md);
  }
  
  .detail-content .card-title {
    font-size: 1.625rem;
    line-height: 1.3;
    font-weight: 700;
  }
  
  .detail-content .card-desc {
    font-size: 1.25rem;
    line-height: 1.6;
    font-weight: 400;
  }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .subscribe-btn {
    animation: none;
  }
}

/* Focus States */
.nav-link:focus,
.subscribe-btn:focus,
.date-range-btn:focus,
.card:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--neutral-100);
}

::-webkit-scrollbar-thumb {
  background: var(--neutral-400);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--neutral-600);
}

/* Loading States */
.skeleton {
  background: linear-gradient(90deg, var(--neutral-100) 25%, var(--neutral-200) 50%, var(--neutral-100) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Dark Mode Support (System Preference) */
@media (prefers-color-scheme: dark) {
  :root {
    --primary: #F8FAFC;
    --neutral-50: #0F172A;
    --neutral-100: #1E293B;
    --neutral-200: #334155;
    --neutral-400: #64748B;
    --neutral-600: #CBD5E1;
    --neutral-800: #E2E8F0;
    --white: #1E293B;
  }
  
  body {
    background-color: var(--neutral-50);
  }
  
  .card {
    background: var(--white);
    border-color: var(--neutral-200);
  }
  
  .navbar {
    background: rgba(30, 41, 59, 0.95);
  }
}