:root {
  --bg-color: #0f172a;
  --panel-bg: rgba(30, 41, 59, 0.7);
  --text-color: #f8fafc;
  --text-muted: #94a3b8;
  --primary: #10b981;
  --primary-hover: #059669;
  --secondary: #475569;
  --secondary-hover: #334155;
  --danger: #ef4444;
  --danger-hover: #dc2828;
  --border: rgba(255, 255, 255, 0.1);
  --glass-blur: blur(12px);
  --radius: 12px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
  background: var(--bg-color);
  background-image: radial-gradient(circle at 15% 50%, rgba(16, 185, 129, 0.15), transparent 25%),
                    radial-gradient(circle at 85% 30%, rgba(239, 68, 68, 0.1), transparent 25%);
  color: var(--text-color);
  min-height: 100vh;
}

#app {
  display: flex;
  height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 250px;
  background: var(--panel-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-right: 1px solid var(--border);
  padding: 2rem 0;
  display: flex;
  flex-direction: column;
}

.logo {
  padding: 0 2rem;
  margin-bottom: 3rem;
  font-size: 1.2rem;
  font-weight: bold;
  background: linear-gradient(to right, #34d399, #10b981);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  list-style: none;
}

.nav-menu li {
  padding: 1rem 2rem;
  cursor: pointer;
  transition: all 0.3s ease;
  color: var(--text-muted);
  border-left: 3px solid transparent;
}

.nav-menu li:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text-color);
}

.nav-menu li.active {
  background: rgba(16, 185, 129, 0.1);
  color: var(--primary);
  border-left-color: var(--primary);
}

/* Main Content */
.content {
  flex: 1;
  padding: 2rem 3rem;
  overflow-y: auto;
}

.view-panel {
  animation: fadeIn 0.4s ease-out;
}

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

/* Cards */
.glass-card {
  background: var(--panel-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.mb-4 { margin-bottom: 2rem; }
.mt-4 { margin-top: 2rem; }
.mt-auto { margin-top: auto; }

h3 {
  margin-bottom: 1.5rem;
  font-weight: 600;
  color: var(--text-color);
}

/* Forms */
.flex-form {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  flex-wrap: wrap;
}

.form-group {
  margin-bottom: 1.5rem;
  flex: 1;
  min-width: 200px;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-color);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.3s;
}

input:focus {
  border-color: var(--primary);
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.small-btn {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
}

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

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

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

/* Feedback */
.result-box {
  padding: 1.5rem;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 8px;
}

.error-box {
  padding: 1rem;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: 8px;
  color: #fca5a5;
}

.highlight {
  font-family: monospace;
  font-size: 1.2rem;
  color: #34d399;
}

/* Tables */
.table-card {
  overflow-x: auto;
}

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

.header-flex h3 { margin-bottom: 0; }

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

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

th {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.9rem;
}

.highlight-text {
  color: #34d399;
  font-family: monospace;
}

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

/* Pagination */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--text-muted);
}

.page-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-size {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-select {
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border);
  color: var(--text-color);
  border-radius: 4px;
  padding: 0.3rem;
  outline: none;
}

.page-select option {
  background: var(--bg-color);
  color: var(--text-color);
}

.page-input {
  width: 50px;
  text-align: center;
  padding: 0.2rem;
  border-radius: 4px;
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border);
  color: var(--text-color);
  outline: none;
  -moz-appearance: textfield;
}

.page-input::-webkit-outer-spin-button,
.page-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.pagination span {
  font-weight: 500;
  margin: 0 0.5rem;
}