/* ==========================================================================
   MODALS
   Modern modal component styles using design tokens
   ========================================================================== */

/* ====================
   MODAL BACKDROP
   ==================== */

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-modal-bg);
  width: 100vw;
  height: 100vh;
  background-color: var(--bg-overlay);
  animation: modal-fade-in var(--duration-fast) var(--ease-out);
}

@keyframes modal-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* ====================
   MODAL CONTAINER
   ==================== */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-modal);
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  outline: 0;
}

.modal-dialog {
  position: relative;
  width: auto;
  max-width: 500px;
  margin: var(--space-12) auto;
  pointer-events: none;
  animation: modal-slide-down var(--duration-normal) var(--ease-out);
}

@keyframes modal-slide-down {
  from {
    opacity: 0;
    transform: translateY(-2rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ====================
   MODAL SIZES
   ==================== */

.modal-sm .modal-dialog {
  max-width: 300px;
}

.modal-lg .modal-dialog {
  max-width: 800px;
}

.modal-xl .modal-dialog {
  max-width: 1140px;
}

.modal-fullscreen .modal-dialog {
  max-width: 100%;
  height: 100%;
  margin: 0;
}

.modal-fullscreen .modal-content {
  height: 100%;
  border-radius: 0;
}

/* ====================
   MODAL CONTENT
   ==================== */

.modal-content {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  pointer-events: auto;
  background-color: var(--bg-surface);
  border: var(--border-width-thin) solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  outline: 0;
}

/* ====================
   MODAL HEADER
   ==================== */

.modal-header {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: space-between;
  padding: var(--padding-lg);
  border-bottom: var(--border-width-thin) solid var(--border-default);
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
}

.modal-title {
  margin: 0;
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--color-neutral-900);
  line-height: var(--leading-tight);
}

.modal-close {
  padding: var(--padding-xs);
  background: transparent;
  border: none;
  font-size: var(--text-2xl);
  line-height: 1;
  color: var(--color-neutral-500);
  cursor: pointer;
  transition: var(--transition-colors);
}

.modal-close:hover {
  color: var(--color-neutral-900);
}

.modal-close::before {
  content: "×";
}

/* ====================
   MODAL BODY
   ==================== */

.modal-body {
  position: relative;
  flex: 1 1 auto;
  padding: var(--padding-lg);
  overflow-y: auto;
}

/* ====================
   MODAL FOOTER
   ==================== */

.modal-footer {
  display: flex;
  flex-shrink: 0;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: var(--gap-sm);
  padding: var(--padding-lg);
  border-top: var(--border-width-thin) solid var(--border-default);
  border-bottom-left-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}

/* ====================
   RESPONSIVE MODAL
   ==================== */

@media (max-width: 576px) {
  .modal-dialog {
    margin: var(--space-4);
    max-width: calc(100% - var(--space-8));
  }

  .modal-fullscreen-sm-down .modal-dialog {
    max-width: 100%;
    height: 100%;
    margin: 0;
  }

  .modal-fullscreen-sm-down .modal-content {
    height: 100%;
    border-radius: 0;
  }
}

/* ====================
   MODAL UTILITIES
   ==================== */

/* Centered modal */
.modal-dialog-centered {
  display: flex;
  align-items: center;
  min-height: calc(100% - var(--space-12) * 2);
}

/* Scrollable modal body */
.modal-dialog-scrollable {
  height: calc(100% - var(--space-12) * 2);
}

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

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