--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/default/assets/scss/vendors/bootstrap/_buttons.scss	Sat May 31 09:21:51 2025 +0800
@@ -0,0 +1,141 @@
+// scss-lint:disable QualifyingElement
+
+//
+// Base styles
+//
+
+.btn {
+  display: inline-block;
+  font-weight: $btn-font-weight;
+  text-align: center;
+  white-space: nowrap;
+  vertical-align: middle;
+  user-select: none;
+  border: $input-btn-border-width solid transparent;
+  @include button-size($input-btn-padding-y, $input-btn-padding-x, $font-size-base, $input-btn-line-height, $btn-border-radius);
+  @include transition($btn-transition);
+
+  // Share hover and focus styles
+  @include hover-focus {
+    text-decoration: none;
+  }
+  &:focus,
+  &.focus {
+    outline: 0;
+    box-shadow: $btn-focus-box-shadow;
+  }
+
+  // Disabled comes first so active can properly restyle
+  &.disabled,
+  &:disabled {
+    opacity: .65;
+    @include box-shadow(none);
+  }
+
+  &:active,
+  &.active {
+    background-image: none;
+    @include box-shadow($btn-focus-box-shadow, $btn-active-box-shadow);
+  }
+}
+
+// Future-proof disabling of clicks on `<a>` elements
+a.btn.disabled,
+fieldset[disabled] a.btn {
+  pointer-events: none;
+}
+
+
+//
+// Alternate buttons
+//
+
+@each $color, $value in $theme-colors {
+  .btn-#{$color} {
+    @include button-variant($value, $value);
+  }
+}
+
+@each $color, $value in $theme-colors {
+  .btn-outline-#{$color} {
+    @include button-outline-variant($value, #fff);
+  }
+}
+
+
+//
+// Link buttons
+//
+
+// Make a button look and behave like a link
+.btn-link {
+  font-weight: $font-weight-normal;
+  color: $link-color;
+  border-radius: 0;
+
+  &,
+  &:active,
+  &.active,
+  &:disabled {
+    background-color: transparent;
+    @include box-shadow(none);
+  }
+  &,
+  &:focus,
+  &:active {
+    border-color: transparent;
+    box-shadow: none;
+  }
+  @include hover {
+    border-color: transparent;
+  }
+  @include hover-focus {
+    color: $link-hover-color;
+    text-decoration: $link-hover-decoration;
+    background-color: transparent;
+  }
+  &:disabled {
+    color: $btn-link-disabled-color;
+
+    @include hover-focus {
+      text-decoration: none;
+    }
+  }
+}
+
+
+//
+// Button Sizes
+//
+
+.btn-lg {
+  @include button-size($input-btn-padding-y-lg, $input-btn-padding-x-lg, $font-size-lg, $line-height-lg, $btn-border-radius-lg);
+}
+
+.btn-sm {
+  @include button-size($input-btn-padding-y-sm, $input-btn-padding-x-sm, $font-size-sm, $line-height-sm, $btn-border-radius-sm);
+}
+
+
+//
+// Block button
+//
+
+.btn-block {
+  display: block;
+  width: 100%;
+}
+
+// Vertically space out multiple block buttons
+.btn-block + .btn-block {
+  margin-top: $btn-block-spacing-y;
+}
+
+// Specificity overrides
+input[type="submit"],
+input[type="reset"],
+input[type="button"] {
+  &.btn-block {
+    width: 100%;
+  }
+}