/* ===== Modal Base ===== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1050;
  display: none;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  outline: 0;
}

.modal-dialog {
  position: relative;
  width: auto;
  margin: 0 auto; /* removed vertical margin to prevent scroll */
  pointer-events: none;
  max-width: 500px;
}

.modal-content {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  pointer-events: auto;
  background-color: #fff;
  background-clip: padding-box;
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 0.3rem;
  outline: 0;
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: flex-end; /* only close button, no title */
  padding: 1rem;
  border-bottom: 1px solid #dee2e6;
}

.modal-body {
  position: relative;
  flex: 1 1 auto;
  padding: 1rem;
}

/* ===== Close Button ===== */
.btn-close {
  padding: 0;
  background: transparent;
  border: 0;
  -webkit-appearance: none;
  cursor: pointer;
}

.btn-close::before {
  content: "×";
  font-size: 1.5rem;
  line-height: 1;
}

/* ===== Fade & Show ===== */
.modal.fade .modal-dialog {
  transform: translate(0, -25%);
  transition: transform 0.3s ease-out;
}

.modal.show .modal-dialog {
  transform: none;
}

/* ===== Backdrop ===== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1040;
  width: 100vw;
  height: 100vh;
  background-color: #000;
  opacity: 0;
  transition: opacity 0.15s linear;
}

.modal-backdrop.show {
  opacity: 0.5;
}

/* ===== Body when modal open ===== */
.modal-open {
  overflow: hidden;
}

/* ===== Centered modal ===== */
.modal-dialog-centered {
  display: flex;
  align-items: center;
  min-height: 100%; /* full viewport height minus flex alignment */
}

/* ===== Scrollable modal ===== */
.modal-dialog-scrollable {
  display: flex;
  max-height: 100%;
}

.modal-dialog-scrollable .modal-content {
  max-height: 100%;
  overflow: hidden;
}

.modal-dialog-scrollable .modal-body {
  overflow-y: auto;
}

/* ===== Responsive tweaks ===== */
@media (min-width: 576px) {
  .modal-dialog {
    margin: 1.75rem auto;
  }
}