:root {
  --app-bg: #ffffff;
  --app-text: #24292f;
  --app-border: #d0d7de;
  --app-header-bg: #f6f8fa;
  --app-header-bg-rgb: 246, 248, 250;
  --app-primary: #546e7a;
  --app-success: #526d5b;
  --app-danger: #a55b5b;
  --app-success-bg: rgba(82, 109, 91, 0.1);
  --app-danger-bg: rgba(165, 91, 91, 0.1);
  --app-muted: #636c76;
}

[data-bs-theme="dark"] {
  --app-bg: #0d1117;
  --app-text: #c9d1d9;
  --app-border: #30363d;
  --app-header-bg: #161b22;
  --app-primary: #538cc6;
  --app-success: #4d7c58;
  --app-danger: #da6767;
  --app-success-bg: rgba(77, 124, 88, 0.15);
  --app-danger-bg: rgba(218, 103, 103, 0.15);
  --app-muted: #8b949e;
}

body {
  background-color: var(--app-bg);
  color: var(--app-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
}

.app-border {
  border-color: var(--app-border) !important;
}

.app-header-bg {
  background-color: var(--app-header-bg) !important;
}

.app-btn-primary {
  background-color: var(--app-primary);
  color: white;
  border: 1px solid rgba(27, 31, 35, 0.15);
}

.app-btn-primary:hover {
  background-color: var(--app-primary);
  opacity: 0.9;
  color: white;
}

.app-btn-success {
  background-color: var(--app-success);
  color: white;
  border: 1px solid rgba(27, 31, 35, 0.15);
}

.app-btn-success:hover {
  background-color: var(--app-success);
  opacity: 0.9;
  color: white;
}

.app-btn-secondary {
  color: var(--app-text);
  background-color: var(--app-header-bg);
  border-color: var(--app-border) !important;
  border-radius: 6px;
}

.app-btn-secondary:hover {
  background-color: var(--app-border);
  color: var(--app-text);
}

.app-badge-success {
  background-color: var(--app-success-bg);
  color: var(--app-success);
  border: 1px solid var(--app-success-bg);
}

.app-badge-danger {
  background-color: var(--app-danger-bg);
  color: var(--app-danger);
  border: 1px solid var(--app-danger-bg);
}

.app-table-wrapper {
  border: 1px solid var(--app-border);
  border-radius: 6px;
  overflow: hidden;
}

.app-table-wrapper thead {
  background-color: var(--app-header-bg);
  border-bottom: 1px solid var(--app-border);
}

.app-table-wrapper table tbody tr:nth-of-type(odd) > * {
  background-color: rgba(175, 184, 193, 0.12) !important;
}

[data-bs-theme="dark"] .app-table-wrapper table tbody tr:nth-of-type(odd) > * {
  background-color: rgba(110, 118, 129, 0.1) !important;
}

.app-table-wrapper table td, .app-table-wrapper table th {
  border-bottom: 1px solid var(--app-border);
}

.app-table-wrapper table tr:last-child td {
  border-bottom: 0;
}

.app-input {
  border-color: var(--app-border);
  background-color: var(--app-bg);
  color: var(--app-text);
  border-radius: 6px 0 0 6px !important;
}

.app-input:focus {
  background-color: var(--app-bg);
  color: var(--app-text);
  border-color: var(--app-primary);
  box-shadow: none;
}

.flash-container {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  pointer-events: none;
}

.app-flash-toast {
  pointer-events: auto;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
  border: 1px solid rgba(0,0,0,0.05);
  font-size: 0.9rem;
  font-weight: 500;
  animation: slideDown 0.4s cubic-bezier(0.18, 0.89, 0.32, 1.28);
}

/* Footer & Contrast Optimization */
.footer-text, .footer-link {
    color: #5a6268 !important; /* Standart griyi biraz daha koyulaştırdık (6.4:1 kontrast) */
}

.footer-muted {
    font-size: 0.75rem;
    color: #5a6268 !important;
}

[data-theme="dark"] .footer-text, 
[data-theme="dark"] .footer-link,
[data-theme="dark"] .footer-muted {
    color: #adb5bd !important;
}

.footer-link:hover {
    color: var(--app-primary) !important;
}
@keyframes slideDown {
  from { transform: translateY(-100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

[data-bs-theme="dark"] .app-flash-toast {
  box-shadow: 0 5px 25px rgba(0,0,0,0.5);
}

.app-flash-toast .btn-close {
  padding: 0.8rem;
  font-size: 0.6rem;
  opacity: 0.4;
  background-size: 0.6rem;
}

.app-flash-toast .btn-close:hover {
  opacity: 1;
}

.app-flash-toast .btn-close:focus {
  box-shadow: none;
  outline: none;
}

.empty-state {
  padding: 80px 20px;
  text-align: center;
  background-color: var(--app-header-bg);
  border: 1px dashed var(--app-border);
  border-radius: 16px;
  margin-top: 2rem;
}

.empty-state-icon {
  width: 120px;
  height: 120px;
  margin-bottom: 24px;
  opacity: 0.6;
}

.empty-state h3 {
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--app-text);
}

.empty-state p {
  color: var(--app-muted);
  max-width: 400px;
  margin: 0 auto;
}