/* Button Styles */

/* Base Button */
.btn {
  display: inline-block;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-text-secondary);
  text-align: center;
  text-decoration: none;
  vertical-align: middle;
  cursor: pointer;
  user-select: none;
  background-color: transparent;
  border: 1px solid transparent;
  padding: 0.375rem 0.75rem;
  font-size: var(--font-size-base);
  border-radius: var(--radius-base);
  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

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

.btn:focus {
  outline: 0;
  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

.btn:disabled,
.btn.disabled {
  pointer-events: none;
  opacity: 0.65;
}

/* Button Variants */
.btn-primary {
  color: var(--color-white);
  background-color: var(--main-a-color);
  border-color: var(--main-a-color);
}

.btn-primary:hover {
  color: var(--color-white);
  background-color: var(--main-hover-color);
  border-color: var(--main-hover-color);
}

.btn-primary:focus {
  color: var(--color-white);
  background-color: var(--main-hover-color);
  border-color: var(--main-hover-color);
  box-shadow: 0 0 0 0.25rem rgba(44, 62, 80, 0.5);
}

.btn-secondary {
  color: var(--color-white);
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
}

.btn-secondary:hover {
  color: #fff;
  background-color: #5c636a;
  border-color: #565e64;
}

.btn-secondary:focus {
  color: #fff;
  background-color: #5c636a;
  border-color: #565e64;
  box-shadow: 0 0 0 0.25rem rgba(130, 138, 145, 0.5);
}

.btn-success {
  color: #fff;
  background-color: #198754;
  border-color: #198754;
}

.btn-success:hover {
  color: #fff;
  background-color: #157347;
  border-color: #146c43;
}

.btn-danger {
  color: #fff;
  background-color: #dc3545;
  border-color: #dc3545;
}

.btn-danger:hover {
  color: #fff;
  background-color: #bb2d3b;
  border-color: #b02a37;
}

.btn-danger:focus {
  color: #fff;
  background-color: #bb2d3b;
  border-color: #b02a37;
  box-shadow: 0 0 0 0.25rem rgba(225, 83, 97, 0.5);
}

.btn-warning {
  color: #000;
  background-color: #ffc107;
  border-color: #ffc107;
}

.btn-warning:hover {
  color: #000;
  background-color: #ffca2c;
  border-color: #ffc720;
}

.btn-info {
  color: #000;
  background-color: #0dcaf0;
  border-color: #0dcaf0;
}

.btn-info:hover {
  color: #000;
  background-color: #31d2f2;
  border-color: #25cff2;
}

.btn-light {
  color: #000;
  background-color: #f8f9fa;
  border-color: #f8f9fa;
}

.btn-light:hover {
  color: #000;
  background-color: #f9fafb;
  border-color: #f9fafb;
}

.btn-dark {
  color: #fff;
  background-color: #212529;
  border-color: #212529;
}

.btn-dark:hover {
  color: #fff;
  background-color: #1c1f23;
  border-color: #1a1e21;
}

/* Outline Buttons */
.btn-outline-primary {
  color: var(--main-a-color);
  border-color: var(--main-a-color);
}

.btn-outline-primary:hover {
  color: #fff;
  background-color: var(--main-a-color);
  border-color: var(--main-a-color);
}

.btn-outline-secondary {
  color: #6c757d;
  border-color: #6c757d;
}

.btn-outline-secondary:hover {
  color: #fff;
  background-color: #6c757d;
  border-color: #6c757d;
}

.btn-outline-danger {
  color: #dc3545;
  border-color: #dc3545;
}

.btn-outline-danger:hover {
  color: #fff;
  background-color: #dc3545;
  border-color: #dc3545;
}

.btn-outline-light {
  color: #f8f9fa;
  border-color: #f8f9fa;
}

.btn-outline-light:hover {
  color: #000;
  background-color: #f8f9fa;
  border-color: #f8f9fa;
}

/* Link Button */
.btn-link {
  font-weight: 400;
  color: var(--main-a-color);
  text-decoration: none;
}

.btn-link:hover {
  color: var(--main-hover-color);
  text-decoration: underline;
}

/* Button Sizes */
.btn-lg {
  padding: 0.5rem 1rem;
  font-size: 1.25rem;
  border-radius: 0.3rem;
}

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
  border-radius: 0.2rem;
}

/* Block Button */
.btn-block {
  display: block;
  width: 100%;
}

/* Button Groups */
.btn-group {
  position: relative;
  display: inline-flex;
  vertical-align: middle;
}

.btn-group > .btn {
  position: relative;
  flex: 1 1 auto;
}

.btn-group > .btn:not(:first-child) {
  margin-left: -1px;
}

.btn-group > .btn:not(:last-child):not(.dropdown-toggle) {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.btn-group > .btn:not(:first-child) {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

/* Button Icon Styles */
.btn-icon {
  opacity: 0.7;
  font-size: 0.875em;
}

/* Icon-only buttons */
.btn .btn-icon:only-child {
  margin: 0;
}

/* Icon-only button styling */
.btn-icon-only {
  padding: 0.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  min-height: 2.5rem;
  margin-left: 0.5rem;
}

.btn-icon-only:first-child {
  margin-left: 0;
}

.btn-icon-only i {
  font-size: 1rem;
  opacity: 0.8;
}

/* Subtle Button Variant */
.btn-subtle {
  opacity: 0.8;
  transition: opacity 0.15s ease-in-out;
}

.btn-subtle:hover {
  opacity: 1;
}

.btn-subtle .btn-icon {
  opacity: 0.6;
}

.btn-subtle:hover .btn-icon {
  opacity: 0.9;
}

/* Close Button */
.btn-close {
  box-sizing: content-box;
  width: 1em;
  height: 1em;
  padding: 0.25em 0.25em;
  color: #000;
  background: transparent url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='M.293.293a1 1 0 011.414 0L8 6.586 14.293.293a1 1 0 111.414 1.414L9.414 8l6.293 6.293a1 1 0 01-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 01-1.414-1.414L6.586 8 .293 1.707a1 1 0 010-1.414z'/%3e%3c/svg%3e") center/1em auto no-repeat;
  border: 0;
  border-radius: 0.25rem;
  opacity: 0.5;
  cursor: pointer;
  transition: opacity 0.15s ease-in-out;
}

.btn-close:hover {
  color: #000;
  text-decoration: none;
  opacity: 0.75;
}

.btn-close:focus {
  outline: 0;
  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
  opacity: 1;
}

.btn-close:disabled,
.btn-close.disabled {
  pointer-events: none;
  user-select: none;
  opacity: 0.25;
}

.btn-close-white {
  filter: invert(1) grayscale(100%) brightness(200%);
}

/* Responsive */
@media (max-width: 576px) {
  .btn {
    padding: 0.5rem 1rem;
  }
  
  .btn-sm {
    padding: 0.375rem 0.75rem;
  }
}