/* Tailwind-compatible CSS Variables & Modern Styling */
:root {
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: var(--font-sans);
  background-color: #020617;
  color: #f8fafc;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, 0.6);
}
::-webkit-scrollbar-thumb {
  background: rgba(51, 65, 85, 0.7);
  border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(99, 102, 241, 0.8);
}

/* Card Styling */
.card {
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(51, 65, 85, 0.5);
  border-radius: 1rem;
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.35);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
  border-color: rgba(99, 102, 241, 0.35);
}

/* Stat Card */
.stat-card {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(51, 65, 85, 0.45);
  border-radius: 0.875rem;
  padding: 1.125rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.stat-card:hover {
  transform: translateY(-2px);
  border-color: rgba(99, 102, 241, 0.4);
}

/* Navigation Item */
.nav-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.875rem;
  border-radius: 0.75rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: #94a3b8;
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
}
.nav-item:hover {
  color: #f1f5f9;
  background: rgba(30, 41, 59, 0.6);
}
.nav-item.active {
  color: #ffffff;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.25), rgba(99, 102, 241, 0.1));
  border: 1px solid rgba(99, 102, 241, 0.3);
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.15);
}

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  color: #ffffff;
  font-weight: 600;
  border: 1px solid rgba(129, 140, 248, 0.4);
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn-primary:hover {
  background: linear-gradient(135deg, #4338ca, #4f46e5);
  box-shadow: 0 6px 18px rgba(79, 70, 229, 0.45);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: rgba(30, 41, 59, 0.8);
  color: #e2e8f0;
  font-weight: 500;
  border: 1px solid rgba(51, 65, 85, 0.7);
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn-secondary:hover {
  background: rgba(51, 65, 85, 0.8);
  color: #ffffff;
  border-color: rgba(100, 116, 139, 0.8);
}

/* Input Fields */
.input-field {
  width: 100%;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(51, 65, 85, 0.6);
  border-radius: 0.625rem;
  padding: 0.55rem 0.75rem;
  color: #f8fafc;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.input-field:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.18);
}
.input-field::placeholder {
  color: #64748b;
}

/* Tab Management */
.tab-content {
  display: none !important;
}
.tab-content.active {
  display: block !important;
  animation: fadeIn 0.2s ease;
}

/* Base utilities for bulletproof visibility */
.hidden {
  display: none !important;
}
.flex {
  display: flex !important;
}
.block {
  display: block !important;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Toast styling */
.toast-item {
  pointer-events: auto;
  min-width: 280px;
  max-width: 400px;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  font-size: 0.8125rem;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
  animation: toastIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
@keyframes toastIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}