:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #ffffff;
  --bg-accent: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border-primary: #e2e8f0;
  --border-secondary: #cbd5e1;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-light: #dbeafe;
  --success: #10b981;
  --success-light: #d1fae5;
  --danger: #ef4444;
  --danger-light: #fee2e2;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 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);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-accent: #475569;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border-primary: #475569;
  --border-secondary: #64748b;
  --accent: #60a5fa;
  --accent-hover: #3b82f6;
  --accent-light: #1e40af;
  --success: #34d399;
  --success-light: #065f46;
  --danger: #f87171;
  --danger-light: #7f1d1d;
  --warning: #fbbf24;
  --warning-light: #92400e;
  --glass-bg: rgba(15, 23, 42, 0.85);
  --glass-border: rgba(255, 255, 255, 0.1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui,
    sans-serif;
  background: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  min-height: 100vh;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
      circle at 20% 20%,
      rgba(59, 130, 246, 0.05) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 80%,
      rgba(139, 92, 246, 0.05) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 40% 60%,
      rgba(16, 185, 129, 0.05) 0%,
      transparent 50%
    );
  pointer-events: none;
  z-index: -1;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
  position: relative;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 3rem;
  gap: 2rem;
}

.header-info h1 {
  font-size: 2.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  letter-spacing: -0.025em;
}

.header-info p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  font-weight: 400;
  letter-spacing: 0.025em;
}

.header-controls {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-shrink: 0;
}

.theme-toggle {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  padding: 0.75rem 1.25rem;
  border-radius: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500;
  font-size: 0.875rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.theme-toggle::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s;
}

.theme-toggle:hover::before {
  left: 100%;
}

.theme-toggle:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 1rem;
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  line-height: 1;
  white-space: nowrap;
}

.btn::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--bg-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-danger {
  background: var(--gradient-secondary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-danger:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  border-radius: 0.75rem;
}

.card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 1.5rem;
  box-shadow: var(--shadow-lg);
  margin-bottom: 2rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  position: relative;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card-header {
  padding: 2rem;
  border-bottom: 1px solid var(--border-primary);
  background: rgba(59, 130, 246, 0.02);
}

.card-header h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.025em;
}

.card-body {
  padding: 2rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

label {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-primary);
  letter-spacing: 0.025em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.required {
  color: var(--danger);
  font-size: 1.25rem;
}

input,
textarea,
select {
  background: var(--bg-primary);
  border: 2px solid var(--border-primary);
  border-radius: 1rem;
  padding: 1rem 1.25rem;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9375rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-light), var(--shadow-md);
  transform: translateY(-2px);
}

textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.search-sort {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
  align-items: center;
  flex-wrap: wrap;
}

.search-box {
  position: relative;
  flex: 1;
  min-width: 300px;
  max-width: 400px;
}

.search-box input {
  padding-left: 3.5rem;
  width: 100%;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
}

.search-icon {
  position: absolute;
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.125rem;
  pointer-events: none;
}

.sort-select {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  padding: 0.875rem 2.5rem 0.875rem 1.25rem;
  border-radius: 1rem;
  color: var(--text-primary);
  font-weight: 500;
  cursor: pointer;
}

.results-info {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.875rem 1.25rem;
  background: var(--bg-accent);
  border-radius: 1rem;
  white-space: nowrap;
}

.form-actions {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
  padding-top: 1rem;
  border-top: 1px solid var(--border-primary);
}

.table-container {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 1.5rem;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.table-container::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
}

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

thead {
  background: rgba(59, 130, 246, 0.05);
}

th {
  padding: 1.5rem;
  text-align: left;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  border-bottom: 2px solid var(--border-primary);
}

td {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-primary);
  font-size: 0.9375rem;
  vertical-align: middle;
}

tr {
  transition: all 0.2s ease;
}

tbody tr:hover {
  background: rgba(59, 130, 246, 0.02);
  transform: scale(1.002);
}

.actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

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

.empty-state-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.empty-state p {
  font-size: 0.9375rem;
}

.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-primary);
  border-top: 3px solid var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.notification {
  position: fixed;
  top: 2rem;
  right: 2rem;
  padding: 1rem 1.5rem;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  box-shadow: var(--shadow-xl);
  z-index: 1000;
  transform: translateX(400px);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.notification.show {
  transform: translateX(0);
}

.notification.success {
  border-left: 4px solid var(--success);
}

.notification.error {
  border-left: 4px solid var(--danger);
}

@media (max-width: 1024px) {
  .container {
    padding: 1.5rem;
  }

  .header {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
    gap: 1.5rem;
  }

  .header-controls {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .header-info h1 {
    font-size: 2rem;
  }

  .search-sort {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box {
    min-width: unset;
    max-width: unset;
  }

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

  .form-actions {
    flex-direction: column-reverse;
  }

  .table-container {
    overflow-x: auto;
  }

  table {
    min-width: 600px;
  }

  .actions {
    flex-direction: column;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 1rem;
  }

  .card-header,
  .card-body {
    padding: 1.5rem;
  }

  th,
  td {
    padding: 1rem;
  }

  .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.8125rem;
  }
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: var(--border-secondary);
  border-radius: 4px;
  transition: background 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

::selection {
  background: var(--accent-light);
  color: var(--accent);
}

::-moz-selection {
  background: var(--accent-light);
  color: var(--accent);
}

/* Footer Styles */
.footer {
  margin-top: 1rem;
  padding: 2rem 0;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.footer-content {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 1.5rem;
  padding: 1.5rem 2rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.footer-content::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
}

.footer-content:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.footer-content p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
}

.heart-icon {
  color: var(--danger);
  animation: heartbeat 2s ease-in-out infinite;
}

@keyframes heartbeat {
  0%,
  50%,
  100% {
    transform: scale(1);
  }
  25%,
  75% {
    transform: scale(1.1);
  }
}

.footer-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.footer-link::before {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.footer-link:hover {
  color: var(--accent-hover);
  transform: translateY(-1px);
}

.footer-link:hover::before {
  width: 100%;
}

.footer-links {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: 50%;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.social-link::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: var(--accent);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.4s, height 0.4s;
}

.social-link:hover::before {
  width: 100%;
  height: 100%;
}

.social-link:hover {
  color: white;
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.social-link svg {
  position: relative;
  z-index: 1;
}

/* Responsive Design */
@media (max-width: 480px) {
  .footer {
    margin-top: 3rem;
    padding: 1.5rem 0;
  }

  .footer-content {
    margin: 0 1rem;
    padding: 1.25rem 1.5rem;
  }

  .footer-content p {
    font-size: 0.875rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  .footer-links {
    gap: 0.75rem;
  }

  .social-link {
    width: 36px;
    height: 36px;
  }
}