@import url('https://fonts.googleapis.com/css2?family=Pretendard:wght@300;400;500;600;700&display=swap');

:root {
  --primary: #4F46E5;
  --primary-hover: #4338CA;
  --bg-gradient: linear-gradient(135deg, #f6d365 0%, #fda085 100%);
  --card-bg: rgba(255, 255, 255, 0.7);
  --text-main: #1E293B;
  --text-muted: #64748B;
  --border: rgba(255, 255, 255, 0.5);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Pretendard', sans-serif;
}

body {
  background: linear-gradient(120deg, #e0c3fc 0%, #8ec5fc 100%);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem;
}

.container {
  width: 100%;
  max-width: 800px;
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 24px;
  padding: 2.5rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1), inset 0 0 0 1px rgba(255,255,255,0.5);
  animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0;
  transform: translateY(20px);
}

@keyframes slideUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.header h1 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.form-group input, .form-group select {
  width: 100%;
  padding: 1rem;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 12px;
  font-size: 1rem;
  transition: all 0.3s ease;
  background: rgba(255, 255, 255, 0.9);
}

.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15);
  background: #fff;
}

.btn {
  width: 100%;
  padding: 1.2rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.btn:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
}

.table-container {
  overflow-x: auto;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.8);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.5);
}

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

thead {
  background: rgba(241, 245, 249, 0.8);
}

th, td {
  padding: 1.2rem 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
}

th {
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

tr:last-child td {
  border-bottom: none;
}

tbody tr {
  transition: background-color 0.2s ease;
}

tbody tr:hover {
  background-color: rgba(248, 250, 252, 0.9);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  background: #E0E7FF;
  color: #3730A3;
}

.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
}

.nav {
  margin-bottom: 2rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.nav a {
  text-decoration: none;
  color: var(--text-main);
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.4);
  transition: all 0.2s;
  backdrop-filter: blur(4px);
}

.nav a:hover, .nav a.active {
  background: rgba(255, 255, 255, 0.9);
  color: var(--primary);
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}