/* Apple-inspired Design System */
:root {
  --bg: #ffffff;
  --bg-secondary: #f5f5f7;
  --bg-card: #ffffff;
  --text-primary: #1d1d1f;
  --text-secondary: #6e6e73;
  --text-tertiary: #86868b;
  --border: rgba(0,0,0,0.08);
  --border-hover: rgba(0,0,0,0.15);
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
  --shadow-card: 0 2px 8px rgba(0,0,0,0.04), 0 0 1px rgba(0,0,0,0.06);
  --shadow-card-hover: 0 8px 25px rgba(0,0,0,0.1), 0 2px 6px rgba(0,0,0,0.06);
  --radius: 16px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --transition: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}

[data-theme="dark"] {
  --bg: #000000;
  --bg-secondary: #1c1c1e;
  --bg-card: #1c1c1e;
  --text-primary: #f5f5f7;
  --text-secondary: #a1a1a6;
  --text-tertiary: #6e6e73;
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.15);
  --accent: #2997ff;
  --accent-hover: #40a0ff;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
  --shadow-card: 0 2px 8px rgba(0,0,0,0.2), 0 0 1px rgba(255,255,255,0.05);
  --shadow-card-hover: 0 8px 25px rgba(0,0,0,0.4), 0 2px 6px rgba(0,0,0,0.2);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-tertiary); }

/* Theme toggle */
.theme-toggle {
  position: fixed;
  top: 16px;
  right: 20px;
  z-index: 100;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.theme-toggle:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-hover);
  transform: scale(1.08);
}
.theme-toggle:active { transform: scale(0.92); }
.theme-toggle svg { width: 15px; height: 15px; color: var(--text-secondary); transition: color var(--transition); }

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  border-radius: 980px;
  font-size: 14px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1;
}
.btn:active { transform: scale(0.96); }
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); box-shadow: 0 4px 12px rgba(0,113,227,0.3); }
.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--border-hover); }

/* Input */
.input {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: all var(--transition);
}
.input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,113,227,0.15);
  background: var(--bg-card);
}
.input::placeholder { color: var(--text-tertiary); }

/* Table */
.table-wrap {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
thead { background: var(--bg-secondary); }
th {
  text-align: left;
  padding: 14px 16px;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
td {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  color: var(--text-primary);
}
tbody tr {
  transition: background var(--transition);
}
tbody tr:hover { background: var(--bg-secondary); }

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 980px;
  font-size: 12px;
  font-weight: 500;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* Logo placeholder */
.logo {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  flex-shrink: 0;
  overflow: hidden;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}
.logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.animate-fade-in-up {
  animation: fadeInUp 0.5s cubic-bezier(0.25, 0.1, 0.25, 1) forwards;
  opacity: 0;
}
.animate-fade-in {
  animation: fadeIn 0.4s ease forwards;
  opacity: 0;
}
.animate-scale-in {
  animation: scaleIn 0.3s cubic-bezier(0.25, 0.1, 0.25, 1) forwards;
  opacity: 0;
}
.stagger-1 { animation-delay: 0.05s; }
.stagger-2 { animation-delay: 0.1s; }
.stagger-3 { animation-delay: 0.15s; }
.stagger-4 { animation-delay: 0.2s; }
.stagger-5 { animation-delay: 0.25s; }
.stagger-6 { animation-delay: 0.3s; }

/* Skeleton loading */
.skeleton {
  background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--border) 50%, var(--bg-secondary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-xs);
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}
.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  animation: scaleIn 0.25s cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* Responsive */
@media (max-width: 640px) {
  .hide-mobile { display: none !important; }
}
@media (max-width: 768px) {
  .hide-tablet { display: none !important; }
}