/* ============================================
   de:hum 인트라넷 디자인 시스템
   Brand: #2D7A4F (Primary Green)
   ============================================ */

:root {
  /* Brand Colors */
  --brand-primary: #2D7A4F;
  --brand-dark: #1A5C35;
  --brand-light: #EAF3ED;
  --brand-accent: #6EE09C;
  --brand-gold: #FFD166;
  --brand-bg: #F7FAF8;

  /* Text */
  --text-primary: #1A1F1B;
  --text-secondary: #4A5A4F;
  --text-tertiary: #8A968F;
  --text-on-brand: #FFFFFF;

  /* Surface */
  --surface-base: #FFFFFF;
  --surface-elevated: #FFFFFF;
  --surface-muted: #F7FAF8;
  --surface-border: rgba(45, 122, 79, 0.12);
  --surface-border-strong: rgba(45, 122, 79, 0.25);

  /* Semantic */
  --success: #2D7A4F;
  --warning: #B8860B;
  --danger: #C73E3A;
  --info: #1F6FB2;

  /* Typography */
  --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Apple SD Gothic Neo',
               'Noto Sans KR', 'Inter', 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, 'Cascadia Code', monospace;

  /* Layout */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(26, 92, 53, 0.04);
  --shadow-md: 0 2px 8px rgba(26, 92, 53, 0.06);
  --shadow-lg: 0 4px 20px rgba(26, 92, 53, 0.08);

  /* Transitions */
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --text-primary: #E8EFE9;
    --text-secondary: #A8B5AB;
    --text-tertiary: #6E7B72;
    --surface-base: #0F1612;
    --surface-elevated: #1A2520;
    --surface-muted: #141C18;
    --surface-border: rgba(110, 224, 156, 0.15);
    --surface-border-strong: rgba(110, 224, 156, 0.3);
    --brand-light: #1F3A2A;
  }
}

/* ============================================
   Reset & Base
   ============================================ */

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

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

body {
  font-family: var(--font-sans);
  background: var(--surface-muted);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

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

a:hover {
  color: var(--brand-dark);
}

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

input {
  font-family: inherit;
}

/* ============================================
   Layout
   ============================================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============================================
   Header
   ============================================ */

.header {
  background: var(--surface-base);
  border-bottom: 1px solid var(--surface-border);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--brand-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.02em;
}

.brand-name {
  font-weight: 600;
  font-size: 16px;
  color: var(--text-primary);
}

.brand-sub {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 2px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-secondary);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--brand-light);
  color: var(--brand-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 13px;
}

/* ============================================
   Hero / Search
   ============================================ */

.hero {
  padding: 48px 0 32px;
}

.hero-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.hero-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.search-wrap {
  position: relative;
  max-width: 600px;
}

.search-input {
  width: 100%;
  padding: 14px 20px 14px 48px;
  font-size: 15px;
  background: var(--surface-base);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  transition: all var(--transition);
}

.search-input:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(45, 122, 79, 0.1);
}

.search-input::placeholder {
  color: var(--text-tertiary);
}

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-tertiary);
  pointer-events: none;
}

/* ============================================
   Stats Grid
   ============================================ */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin: 32px 0;
}

.stat-card {
  background: var(--surface-base);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-tertiary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.stat-trend {
  font-size: 12px;
  color: var(--success);
  margin-top: 4px;
}

/* ============================================
   Section
   ============================================ */

.section {
  margin: 40px 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.section-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.section-link {
  font-size: 13px;
  color: var(--brand-primary);
  font-weight: 500;
}

/* ============================================
   Category Cards
   ============================================ */

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.category-card {
  background: var(--surface-base);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition);
  cursor: pointer;
  display: block;
  color: inherit;
}

.category-card:hover {
  border-color: var(--brand-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.category-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--brand-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--brand-primary);
}

.category-icon svg {
  width: 22px;
  height: 22px;
}

.category-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.category-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  line-height: 1.5;
}

.category-count {
  font-size: 12px;
  color: var(--text-tertiary);
  font-weight: 500;
}

.category-count strong {
  color: var(--brand-primary);
  font-weight: 700;
}

/* ============================================
   Item List (Resources)
   ============================================ */

.item-list {
  background: var(--surface-base);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.item-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--surface-border);
  transition: background var(--transition);
  text-decoration: none;
  color: inherit;
}

.item-row:last-child {
  border-bottom: none;
}

.item-row:hover {
  background: var(--surface-muted);
}

.item-content {
  flex: 1;
  min-width: 0;
}

.item-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.item-meta {
  font-size: 12px;
  color: var(--text-tertiary);
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.item-meta-divider {
  color: var(--surface-border-strong);
}

.item-tags {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 500;
  background: var(--brand-light);
  color: var(--brand-dark);
}

.tag-lang {
  background: rgba(31, 111, 178, 0.1);
  color: var(--info);
}

.tag-market {
  background: rgba(184, 134, 11, 0.1);
  color: var(--warning);
}

.item-date {
  font-size: 11px;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

/* ============================================
   Filter Bar
   ============================================ */

.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.filter-chip {
  padding: 7px 14px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  background: var(--surface-base);
  border: 1px solid var(--surface-border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-chip:hover {
  border-color: var(--brand-primary);
  color: var(--brand-primary);
}

.filter-chip.active {
  background: var(--brand-primary);
  color: white;
  border-color: var(--brand-primary);
}

/* ============================================
   Empty State
   ============================================ */

.empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-tertiary);
}

.empty-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  opacity: 0.4;
}

.empty-text {
  font-size: 14px;
}

/* ============================================
   Footer
   ============================================ */

.footer {
  margin-top: auto;
  padding: 32px 0;
  border-top: 1px solid var(--surface-border);
  font-size: 12px;
  color: var(--text-tertiary);
  text-align: center;
}

.footer a {
  color: var(--text-secondary);
  margin: 0 8px;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
  cursor: pointer;
  text-decoration: none;
}

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

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

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

.btn-secondary:hover {
  border-color: var(--brand-primary);
  color: var(--brand-primary);
}

/* ============================================
   Login Gate
   ============================================ */

.login-overlay {
  position: fixed;
  inset: 0;
  background: var(--surface-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.login-card {
  background: var(--surface-base);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  max-width: 380px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--surface-border);
}

.login-logo {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: var(--brand-primary);
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.02em;
}

.login-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.login-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.login-input {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  background: var(--surface-base);
  color: var(--text-primary);
  margin-bottom: 12px;
  font-family: inherit;
}

.login-input:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(45, 122, 79, 0.1);
}

.login-error {
  font-size: 13px;
  color: var(--danger);
  margin-bottom: 12px;
  min-height: 20px;
}

.login-btn {
  width: 100%;
  padding: 12px;
  font-size: 15px;
  font-weight: 600;
  background: var(--brand-primary);
  color: white;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition);
}

.login-btn:hover {
  background: var(--brand-dark);
}

.login-note {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 16px;
}

.hidden {
  display: none !important;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  
  .hero {
    padding: 32px 0 24px;
  }
  
  .hero-title {
    font-size: 22px;
  }
  
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .item-tags {
    display: none;
  }
}