html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
}

.thumbnail-container {
    min-height: 400px;
    max-height: 450px;
}

.center-box {
    width: 100%;
    height: 416px;
    background-color: #3498db;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 10px;
    font-family: sans-serif;
}

.overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.25);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    pointer-events: none;
    font-size: 1.5rem;
    color: white;
}

.loader {
    border: 4px solid rgba(255,255,255,0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    display: inline-block;
}

.popup-card-half {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    max-width: 100%;
    height: 50%;
    width: 50%;
    position: relative;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.close-btn {
    position: absolute;
    top: 8px;
    right: 12px;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.popup-thumb {
    max-width: 100%;
    margin-top: 1rem;
    width: 100%;
    height: 100%;
}

@@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.modal-full {
    --bs-modal-width: 95%;
    --bs-modal-height: 95%;
}