:root {
  --primary: #1a365d;
  --primary-light: #2b6cb0;
  --primary-dark: #0d1b2a;
  --accent: #4299e1;
  --accent-light: #bee3f8;
  --success: #48bb78;
  --success-light: #c6f6d5;
  --warning: #ed8936;
  --warning-light: #feebc8;
  --danger: #e53e3e;
  --danger-light: #fed7d7;
  --gray-50: #f7fafc;
  --gray-100: #edf2f7;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e0;
  --gray-400: #a0aec0;
  --gray-500: #718096;
  --gray-600: #4a5568;
  --gray-700: #2d3748;
  --gray-800: #1a202c;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 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);
  --transition: all 0.2s ease;
}

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

body {
  font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
  color: var(--gray-700);
  min-height: 100vh;
  line-height: 1.6;
}

#app {
  min-height: 100vh;
}

/* Header */
.header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-lg);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo span {
  font-size: 12px;
  font-weight: 400;
  opacity: 0.8;
}

.nav {
  display: flex;
  gap: 8px;
}

.nav-btn {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}

.nav-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

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

.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
}

.user-name {
  font-weight: 500;
}

.user-role {
  font-size: 12px;
  opacity: 0.8;
  background: rgba(255, 255, 255, 0.15);
  padding: 2px 8px;
  border-radius: 4px;
}

/* Main Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

/* Cards */
.card {
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 24px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--gray-200);
}

.card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--gray-800);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.btn-secondary {
  background: var(--gray-100);
  color: var(--gray-700);
}

.btn-secondary:hover {
  background: var(--gray-200);
}

.btn-success {
  background: linear-gradient(135deg, var(--success) 0%, #38a169 100%);
  color: white;
}

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

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Forms */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--gray-700);
  font-size: 14px;
}

.form-label.required::after {
  content: ' *';
  color: var(--danger);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: inherit;
  transition: var(--transition);
  background: white;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-hint {
  font-size: 13px;
  color: var(--gray-500);
  margin-top: 6px;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.stat-card {
  background: white;
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
}

.stat-card.primary::before { background: var(--primary); }
.stat-card.success::before { background: var(--success); }
.stat-card.warning::before { background: var(--warning); }
.stat-card.accent::before { background: var(--accent); }

.stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--gray-800);
}

.stat-label {
  font-size: 14px;
  color: var(--gray-500);
  margin-top: 4px;
}

/* Table */
.table-wrapper {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--gray-200);
}

.table th {
  background: var(--gray-50);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gray-600);
}

.table tr:hover {
  background: var(--gray-50);
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.badge-draft { background: var(--gray-200); color: var(--gray-600); }
.badge-submitted { background: var(--accent-light); color: var(--primary); }
.badge-under_review { background: var(--warning-light); color: #c05621; }
.badge-reviewed { background: #e9d8fd; color: #6b46c1; }
.badge-selected { background: var(--success-light); color: #276749; }
.badge-rejected { background: var(--danger-light); color: #c53030; }
.badge-pending { background: var(--warning-light); color: #c05621; }
.badge-completed { background: var(--success-light); color: #276749; }

/* Login Page */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  padding: 20px;
}

.login-box {
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 420px;
  padding: 40px;
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-header h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.login-header p {
  color: var(--gray-500);
  font-size: 14px;
}

.login-tabs {
  display: flex;
  margin-bottom: 24px;
  background: var(--gray-100);
  border-radius: var(--radius-sm);
  padding: 4px;
}

.login-tab {
  flex: 1;
  padding: 10px;
  border: none;
  background: none;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-500);
  cursor: pointer;
  border-radius: 6px;
  transition: var(--transition);
}

.login-tab.active {
  background: white;
  color: var(--primary);
  box-shadow: var(--shadow);
}

.code-input {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin: 24px 0;
}

.code-input input {
  width: 48px;
  height: 56px;
  text-align: center;
  font-size: 24px;
  font-weight: 600;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.code-input input:focus {
  outline: none;
  border-color: var(--accent);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal {
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 18px;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--gray-400);
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--gray-600);
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--gray-200);
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

/* Alerts */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 14px;
}

.alert-success {
  background: var(--success-light);
  color: #276749;
}

.alert-danger {
  background: var(--danger-light);
  color: #c53030;
}

.alert-info {
  background: var(--accent-light);
  color: var(--primary);
}

/* Score Input */
.score-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--gray-50);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.score-item-info {
  flex: 1;
}

.score-item-label {
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 4px;
}

.score-item-category {
  font-size: 12px;
  color: var(--gray-500);
}

.score-item-input {
  display: flex;
  align-items: center;
  gap: 8px;
}

.score-item-input input {
  width: 60px;
  padding: 8px;
  text-align: center;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
}

.score-item-max {
  color: var(--gray-400);
  font-size: 14px;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--gray-400);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.empty-state-text {
  font-size: 16px;
}

/* Loading */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 12px 0;
    gap: 12px;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: center;
  }

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

  .table th,
  .table td {
    padding: 8px 12px;
    font-size: 13px;
  }
  
  .landing-content {
    grid-template-columns: 1fr !important;
  }
  
  .landing-poster {
    order: -1;
  }
}

/* Landing Page Styles */
.landing-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
}

.landing-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  padding: 0 24px;
  box-shadow: var(--shadow-lg);
}

.landing-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.landing-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
}

.landing-content {
  max-width: 1200px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.landing-text h1 {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 24px;
  line-height: 1.3;
}

.landing-description {
  font-size: 18px;
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 32px;
}

.landing-dates {
  background: white;
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 32px;
}

.date-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.date-label {
  font-weight: 600;
  color: var(--gray-500);
  min-width: 80px;
}

.date-value {
  font-size: 16px;
  color: var(--gray-800);
}

.landing-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.landing-poster img {
  width: 100%;
  max-width: 500px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.landing-poster-placeholder {
  width: 100%;
  max-width: 500px;
  aspect-ratio: 3/4;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
}

.poster-placeholder-content {
  text-align: center;
  color: white;
}

.poster-placeholder-content p {
  font-size: 24px;
  font-weight: 600;
  margin: 8px 0;
}

.landing-footer {
  background: var(--gray-800);
  color: var(--gray-400);
  text-align: center;
  padding: 20px;
  font-size: 14px;
}