:root {
  --primary-color: #6366f1;
  --primary-hover: #4f46e5;
  --bg-color: #f8fafc;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.4);
  --card-bg: #ffffff;
  --input-bg: #f1f5f9;
  --input-border: #cbd5e1;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

body.dark {
  --primary-color: #818cf8;
  --primary-hover: #6366f1;
  --bg-color: #0f172a;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --glass-bg: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(30, 41, 59, 0.4);
  --card-bg: #1e293b;
  --input-bg: #0f172a;
  --input-border: #334155;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  background-image: 
    radial-gradient(at 40% 20%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
    radial-gradient(at 80% 0%, rgba(236, 72, 153, 0.15) 0px, transparent 50%),
    radial-gradient(at 0% 50%, rgba(56, 189, 248, 0.15) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  transition: all 0.4s ease;
}

.glass-container {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 3rem;
  width: 100%;
  max-width: 1200px;
  box-shadow: var(--shadow);
}

header {
  text-align: center;
  margin-bottom: 3rem;
}

header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-color), #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

header p {
  color: var(--text-muted);
}

.layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
}

.form-section {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

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

label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

input[type="text"], select {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

input[type="text"]:focus, select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.radio-group, .checkbox-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.custom-radio, .custom-checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  padding: 0.5rem 1rem;
  background: var(--input-bg);
  border-radius: 8px;
  border: 1px solid var(--input-border);
  transition: all 0.2s ease;
}

.custom-radio:hover, .custom-checkbox:hover {
  border-color: var(--primary-color);
}

.submit-btn {
  width: 100%;
  padding: 1rem;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
  margin-top: 2rem;
}

.submit-btn:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.submit-btn svg {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
}

.submit-btn:hover svg {
  transform: translateX(4px);
}

.data-section {
  display: flex;
  flex-direction: column;
}

.table-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.table-actions h2 {
  font-size: 1.5rem;
  font-weight: 600;
}

.action-buttons {
  display: flex;
  gap: 0.5rem;
}

.icon-btn {
  padding: 0.5rem 1rem;
  background: var(--card-bg);
  border: 1px solid var(--input-border);
  border-radius: 6px;
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.icon-btn:hover {
  background: var(--input-bg);
  border-color: var(--text-muted);
}

.icon-btn:active {
  transform: scale(0.98);
}

.table-wrapper {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 1rem;
  box-shadow: var(--shadow);
  overflow-x: auto;
  flex-grow: 1;
}

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

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--input-border);
  white-space: nowrap;
}

th {
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

tbody tr {
  animation: slideIn 0.3s ease forwards;
}

tbody tr:hover {
  background: var(--input-bg);
}

#empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
  font-style: italic;
}

table.has-data + #empty-state {
  display: none;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .glass-container {
    padding: 1.5rem;
  }
}