/* ============================================
   UI Components - GitHub Primer Light Theme
   https://primer.style/components
   ============================================ */

/* === Container === */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-3);
}

.container-sm { max-width: var(--container-narrow); }
.container-md { max-width: 1012px; }
.container-lg { max-width: var(--container-max); }
.container-xl { max-width: var(--container-wide); }

/* ============================================
   Buttons - Primer Style
   ============================================ */

.gh-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: var(--control-medium);
    padding: 5px 16px;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    line-height: 20px;
    color: var(--color-fg-default);
    background-color: var(--color-canvas-subtle);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-btn);
    cursor: pointer;
    transition: background-color 80ms, border-color 80ms;
    white-space: nowrap;
    text-decoration: none;
    vertical-align: middle;
}

.gh-btn:hover {
    background-color: #f3f4f6;
    border-color: var(--color-border-default);
    text-decoration: none;
}

.gh-btn:focus-visible {
    outline: 2px solid var(--color-accent-fg);
    outline-offset: -2px;
    box-shadow: none;
}

.gh-btn:disabled,
.gh-btn[aria-disabled="true"] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Primary Button (Green) */
.gh-btn--primary {
    color: var(--color-fg-onEmphasis);
    background-color: var(--color-success-emphasis);
    border-color: rgba(31, 35, 40, 0.15);
    box-shadow: var(--shadow-btn), inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.gh-btn--primary:hover {
    background-color: #1e40af;
    border-color: rgba(31, 35, 40, 0.15);
}

/* Danger Button */
.gh-btn--danger {
    color: var(--color-danger-fg);
    background-color: var(--color-canvas-subtle);
    border-color: var(--color-border-default);
}

.gh-btn--danger:hover {
    color: var(--color-fg-onEmphasis);
    background-color: var(--color-danger-emphasis);
    border-color: var(--color-danger-emphasis);
}

/* Outline Button */
.gh-btn--outline {
    color: var(--color-accent-fg);
    background-color: var(--color-canvas-default);
    border-color: var(--color-border-default);
}

.gh-btn--outline:hover {
    color: var(--color-fg-onEmphasis);
    background-color: var(--color-accent-emphasis);
    border-color: var(--color-accent-emphasis);
}

/* Ghost/Invisible Button */
.gh-btn--ghost {
    color: var(--color-accent-fg);
    background-color: transparent;
    border: none;
    box-shadow: none;
}

.gh-btn--ghost:hover {
    background-color: var(--color-neutral-subtle);
}

/* Link Button */
.gh-btn--link {
    color: var(--color-accent-fg);
    background: none;
    border: none;
    box-shadow: none;
    padding: 0;
    height: auto;
    font-weight: var(--font-normal);
}

.gh-btn--link:hover {
    text-decoration: underline;
    background: none;
}

/* Inverse Button (for dark backgrounds) */
.gh-btn--inverse {
    color: var(--color-fg-onEmphasis);
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.gh-btn--inverse:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

.gh-btn--white {
    color: var(--color-fg-default);
    background-color: var(--color-canvas-default);
    border-color: var(--color-border-default);
}

/* Button Sizes */
.gh-btn--sm {
    height: var(--control-small);
    padding: 3px 12px;
    font-size: var(--text-xs);
}

.gh-btn--lg {
    height: var(--control-large);
    padding: 9px 20px;
    font-size: var(--text-base);
}

.gh-btn--block,
.gh-btn--full {
    width: 100%;
}

/* Icon Button */
.gh-btn--icon {
    width: var(--control-medium);
    padding: 0;
}

.gh-btn--icon.gh-btn--sm { width: var(--control-small); }
.gh-btn--icon.gh-btn--lg { width: var(--control-large); }

/* ============================================
   Form Elements - Primer Style
   ============================================ */

.gh-form-group {
    margin-bottom: var(--space-3);
}

.gh-form-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-fg-default);
}

.gh-form-required {
    color: var(--color-danger-fg);
    margin-left: 2px;
}

.gh-form-optional {
    color: var(--color-fg-muted);
    font-weight: var(--font-normal);
}

.gh-form-input,
.gh-form-select,
.gh-form-textarea {
    width: 100%;
    height: var(--control-medium);
    padding: 5px 12px;
    font-size: var(--text-sm);
    line-height: 20px;
    color: var(--color-fg-default);
    background-color: var(--color-canvas-default);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-inset);
    transition: border-color 80ms, box-shadow 80ms;
}

.gh-form-input:focus,
.gh-form-select:focus,
.gh-form-textarea:focus {
    outline: none;
    border-color: var(--color-accent-fg);
    box-shadow: var(--shadow-focus);
}

.gh-form-input::placeholder {
    color: var(--color-fg-subtle);
}

.gh-form-input--lg,
.gh-form-select--lg {
    height: var(--control-large);
    padding: 9px 16px;
    font-size: var(--text-base);
}

.gh-form-textarea {
    height: auto;
    min-height: 100px;
    padding: 12px;
    resize: vertical;
    line-height: var(--leading-normal);
}

/* Validation States */
.gh-form-input.is-invalid,
.gh-form-select.is-invalid,
.gh-form-textarea.is-invalid {
    border-color: var(--color-danger-fg);
}

.gh-form-input.is-invalid:focus,
.gh-form-select.is-invalid:focus,
.gh-form-textarea.is-invalid:focus {
    box-shadow: 0 0 0 3px var(--color-danger-muted);
}

.gh-form-input.is-valid,
.gh-form-select.is-valid {
    border-color: var(--color-success-fg);
}

.gh-form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='%23656d76'%3E%3Cpath d='M4.427 9.427l3.396 3.396a.25.25 0 00.354 0l3.396-3.396A.25.25 0 0011.396 9H4.604a.25.25 0 00-.177.427zM4.423 6.47L7.82 3.072a.25.25 0 01.354 0L11.57 6.47a.25.25 0 01-.177.427H4.6a.25.25 0 01-.177-.427z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    padding-right: 32px;
}

.gh-form-error {
    display: block;
    margin-top: 4px;
    font-size: var(--text-xs);
    color: var(--color-danger-fg);
}

.gh-form-hint {
    display: block;
    margin-top: 4px;
    font-size: var(--text-xs);
    color: var(--color-fg-muted);
}

/* Checkbox & Radio */
.gh-form-checkbox,
.gh-form-radio {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: var(--text-sm);
    color: var(--color-fg-default);
}

.gh-form-checkbox input,
.gh-form-radio input {
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: var(--color-success-emphasis);
}

/* Input Group */
.gh-input-group {
    display: flex;
    align-items: stretch;
}

.gh-input-group .gh-form-input {
    border-radius: 0;
}

.gh-input-group .gh-form-input:first-child {
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.gh-input-group .gh-form-input:last-child {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.gh-input-group .gh-btn {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-left: -1px;
}

/* ============================================
   Cards - Primer Style (Box)
   ============================================ */

.gh-card {
    background-color: var(--color-canvas-default);
    border: none;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.gh-card--subtle {
    background-color: var(--color-canvas-subtle);
}

.gh-card--bordered {
    border: 1px solid var(--color-border-default);
    box-shadow: none;
}

.gh-card--borderless {
    border: none;
    box-shadow: none;
}

.gh-card--form {
    background-color: transparent;
    border: none;
    box-shadow: none;
}

.gh-card--wide {
    width: 100%;
    max-width: 100%;
    border: none;
    border-radius: var(--radius-xl);
    background-color: var(--color-canvas-default);
    box-shadow: var(--shadow-lg);
}

.gh-card-header {
    padding: var(--space-3);
    border-bottom: 1px solid var(--color-border-default);
    background-color: var(--color-canvas-subtle);
}

.gh-card-title {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-fg-default);
    margin: 0;
}

.gh-card-body {
    padding: var(--space-3);
}

.gh-card-footer {
    padding: var(--space-3);
    border-top: 1px solid var(--color-border-default);
    background-color: var(--color-canvas-subtle);
}

/* ============================================
   Labels/Badges - Primer Style
   ============================================ */

.gh-badge {
    display: inline-flex;
    align-items: center;
    padding: 0 7px;
    height: 20px;
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    line-height: 18px;
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    white-space: nowrap;
}

.gh-badge--default {
    background-color: var(--color-neutral-subtle);
    color: var(--color-fg-muted);
}

.gh-badge--primary,
.gh-badge--accent {
    background-color: var(--color-accent-subtle);
    color: var(--color-accent-fg);
}

.gh-badge--success {
    background-color: var(--color-success-subtle);
    color: var(--color-success-fg);
}

.gh-badge--warning {
    background-color: var(--color-warning-subtle);
    color: var(--color-warning-fg);
}

.gh-badge--danger {
    background-color: var(--color-danger-subtle);
    color: var(--color-danger-fg);
}

.gh-badge--done {
    background-color: var(--color-done-subtle);
    color: var(--color-done-fg);
}

/* Counter Badge */
.gh-counter {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    line-height: 1;
    color: var(--color-fg-default);
    background-color: var(--color-neutral-muted);
    border-radius: var(--radius-full);
}

/* ============================================
   Alerts/Flash - Primer Style
   ============================================ */

.gh-alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: var(--space-3);
    border-radius: var(--radius-md);
    border: 1px solid;
}

.gh-alert-icon {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    margin-top: 2px;
}

.gh-alert-content {
    flex: 1;
    font-size: var(--text-sm);
}

.gh-alert-content p {
    margin: 0;
}

.gh-alert--info {
    background-color: var(--color-accent-subtle);
    border-color: var(--color-accent-muted);
    color: var(--color-accent-fg);
}

.gh-alert--success {
    background-color: var(--color-success-subtle);
    border-color: var(--color-success-muted);
    color: var(--color-success-fg);
}

.gh-alert--warning {
    background-color: var(--color-warning-subtle);
    border-color: var(--color-warning-muted);
    color: var(--color-warning-fg);
}

.gh-alert--danger {
    background-color: var(--color-danger-subtle);
    border-color: var(--color-danger-muted);
    color: var(--color-danger-fg);
}

/* ============================================
   Social Buttons - Primer Style
   ============================================ */

.gh-social-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.gh-social-btn {
    width: 100%;
    height: var(--control-medium);
    padding: 5px 16px;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color 80ms, border-color 80ms;
    position: relative;
}

.gh-social-btn::before {
    content: "";
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: var(--font-bold);
    position: absolute;
    left: 16px;
}

.gh-social-btn:hover {
    text-decoration: none;
}

.gh-social-btn--kakao {
    background-color: #fee500;
    color: #191919;
    border-color: #fee500;
}

.gh-social-btn--kakao::before {
    content: "K";
    background-color: #191919;
    color: #fee500;
}

.gh-social-btn--kakao:hover {
    background-color: #fdd800;
    border-color: #fdd800;
}

.gh-social-btn--google {
    background-color: var(--color-canvas-default);
    color: var(--color-fg-default);
    border-color: var(--color-border-default);
}

.gh-social-btn--google::before {
    content: "G";
    background-color: #4285f4;
    color: var(--color-fg-onEmphasis);
}

.gh-social-btn--google:hover {
    background-color: var(--color-canvas-subtle);
}

.gh-social-btn--facebook {
    background-color: var(--color-canvas-default);
    color: var(--color-fg-default);
    border-color: var(--color-border-default);
}

.gh-social-btn--facebook::before {
    content: "f";
    background-color: #1877f2;
    color: var(--color-fg-onEmphasis);
}

.gh-social-btn--facebook:hover {
    background-color: var(--color-canvas-subtle);
}

.gh-social-btn--naver {
    background-color: #2563eb;
    color: var(--color-fg-onEmphasis);
    border-color: #2563eb;
}

.gh-social-btn--naver::before {
    content: "N";
    background-color: var(--color-fg-onEmphasis);
    color: #2563eb;
}

.gh-social-btn--naver:hover {
    background-color: #02b350;
    border-color: #02b350;
}

.gh-social-btn--apple {
    background-color: #000000;
    color: var(--color-fg-onEmphasis);
    border-color: #000000;
}

.gh-social-btn--apple:hover {
    background-color: #1a1a1a;
}

/* ============================================
   Dividers - Primer Style
   ============================================ */

.gh-divider {
    height: 1px;
    background-color: var(--color-border-default);
    margin: var(--space-3) 0;
    border: none;
}

.gh-auth-divider {
    display: flex;
    align-items: center;
    margin: var(--space-4) 0;
    color: var(--color-fg-muted);
    font-size: var(--text-xs);
}

.gh-auth-divider::before,
.gh-auth-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background-color: var(--color-border-default);
}

.gh-auth-divider span {
    padding: 0 var(--space-3);
}

/* ============================================
   Links - Primer Style
   ============================================ */

.gh-link {
    font-size: var(--text-sm);
    color: var(--color-accent-fg);
    text-decoration: none;
}

.gh-link:hover {
    text-decoration: underline;
}

.gh-link--muted {
    color: var(--color-fg-muted);
}

.gh-link--muted:hover {
    color: var(--color-accent-fg);
}

.gh-link--strong {
    font-weight: var(--font-semibold);
}

/* ============================================
   Text Utilities - Primer Style
   ============================================ */

.gh-text-brand {
    color: var(--color-success-fg);
}

.gh-text-muted {
    color: var(--color-fg-muted);
}

.gh-text-subtle {
    color: var(--color-fg-subtle);
}

.gh-text-danger {
    color: var(--color-danger-fg);
}

.gh-text-success {
    color: var(--color-success-fg);
}

.gh-text-warning {
    color: var(--color-warning-fg);
}

.gh-text-accent {
    color: var(--color-accent-fg);
}

/* ============================================
   Tabs - Primer Style (UnderlineNav)
   ============================================ */

.gh-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--color-border-default);
}

.gh-tab {
    padding: 8px 16px;
    font-size: var(--text-sm);
    font-weight: var(--font-normal);
    color: var(--color-fg-default);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    cursor: pointer;
    transition: border-color 80ms;
}

.gh-tab:hover {
    color: var(--color-fg-default);
    border-bottom-color: var(--color-neutral-muted);
    text-decoration: none;
}

.gh-tab.is-active,
.gh-tab[aria-selected="true"] {
    font-weight: var(--font-semibold);
    color: var(--color-fg-default);
    border-bottom-color: #fd8c73;
}

.gh-tab-content {
    display: none;
    padding: var(--space-3) 0;
}

.gh-tab-content.is-show {
    display: block;
}

.gh-tab-pane {
    display: none;
}

.gh-tab-pane.is-show {
    display: block;
}

/* ============================================
   Progress Bar - Primer Style
   ============================================ */

.gh-progress {
    height: 8px;
    background-color: var(--color-canvas-subtle);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.gh-progress-bar {
    height: 100%;
    background-color: var(--color-success-emphasis);
    border-radius: var(--radius-md);
    transition: width var(--transition-slow);
}

.gh-progress-bar--accent { background-color: var(--color-accent-emphasis); }
.gh-progress-bar--danger { background-color: var(--color-danger-emphasis); }
.gh-progress-bar--warning { background-color: var(--color-warning-emphasis); }

/* ============================================
   Spinner - Primer Style
   ============================================ */

.gh-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border-default);
    border-top-color: var(--color-accent-fg);
    border-radius: var(--radius-full);
    animation: gh-spin 0.6s linear infinite;
}

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

.gh-spinner--lg { width: 32px; height: 32px; }
.gh-spinner--sm { width: 16px; height: 16px; border-width: 1.5px; }

/* ============================================
   Avatar - Primer Style
   ============================================ */

.gh-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background-color: var(--color-canvas-subtle);
    color: var(--color-fg-default);
    font-weight: var(--font-semibold);
    overflow: hidden;
    flex-shrink: 0;
}

.gh-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gh-avatar--sm { width: 24px; height: 24px; font-size: var(--text-xs); }
.gh-avatar--md { width: 32px; height: 32px; font-size: var(--text-sm); }
.gh-avatar--lg { width: 48px; height: 48px; font-size: var(--text-lg); }
.gh-avatar--xl { width: 64px; height: 64px; font-size: var(--text-xl); }

.gh-avatar--square { border-radius: var(--radius-md); }

/* ============================================
   Empty State - Primer Style (Blankslate)
   ============================================ */

.gh-blankslate {
    text-align: center;
    padding: var(--space-5) var(--space-3);
    background-color: var(--color-canvas-subtle);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
}

.gh-blankslate-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-3);
    color: var(--color-fg-muted);
}

.gh-blankslate-heading {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
}

.gh-blankslate-description {
    color: var(--color-fg-muted);
    margin-bottom: var(--space-4);
}

/* ============================================
   Modal/Dialog - Primer Style
   ============================================ */

.gh-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(31, 35, 40, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    padding: var(--space-3);
    backdrop-filter: blur(4px);
}

.gh-modal {
    width: 100%;
    max-width: 480px;
    background: var(--color-canvas-default);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-overlay);
    animation: gh-modal-in 200ms ease-out;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

@keyframes gh-modal-in {
    from {
        transform: translateY(16px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.gh-modal--sm { max-width: 360px; }
.gh-modal--lg { max-width: 640px; }
.gh-modal--xl { max-width: 800px; }

.gh-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3);
    border-bottom: 1px solid var(--color-border-default);
}

.gh-modal-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-fg-default);
    margin: 0;
}

.gh-modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--color-fg-muted);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all 80ms;
}

.gh-modal-close:hover {
    background: var(--color-canvas-subtle);
    color: var(--color-fg-default);
}

.gh-modal-body {
    padding: var(--space-3);
    overflow-y: auto;
    flex: 1;
}

.gh-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-2);
    padding: var(--space-3);
    border-top: 1px solid var(--color-border-default);
    background-color: var(--color-canvas-subtle);
}

/* ============================================
   List - Primer Style (ActionList)
   ============================================ */

.gh-list {
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.gh-list-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    background: var(--color-canvas-default);
    border-bottom: 1px solid var(--color-border-default);
    font-size: var(--text-sm);
    color: var(--color-fg-default);
    text-decoration: none;
    transition: background-color 80ms;
}

.gh-list-item:last-child {
    border-bottom: none;
}

.gh-list-item:hover {
    background-color: var(--color-canvas-subtle);
    text-decoration: none;
}

.gh-list-item-content {
    flex: 1;
    min-width: 0;
}

.gh-list-item-title {
    font-weight: var(--font-medium);
}

.gh-list-item-description {
    font-size: var(--text-xs);
    color: var(--color-fg-muted);
    margin-top: 2px;
}

/* ============================================
   Dropdown/Menu - Primer Style (ActionMenu)
   ============================================ */

.gh-dropdown {
    position: relative;
    display: inline-block;
}

.gh-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: var(--z-dropdown);
    min-width: 200px;
    padding: var(--space-1) 0;
    background: var(--color-canvas-overlay);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-overlay);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 80ms;
}

.gh-dropdown.is-open .gh-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(4px);
}

.gh-dropdown-menu--right {
    left: auto;
    right: 0;
}

.gh-dropdown-header {
    padding: 6px 16px;
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--color-fg-muted);
}

.gh-dropdown-divider {
    height: 1px;
    margin: 4px 0;
    background: var(--color-border-default);
}

.gh-dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 6px 16px;
    font-size: var(--text-sm);
    color: var(--color-fg-default);
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    transition: background-color 80ms;
}

.gh-dropdown-item:hover {
    background: var(--color-canvas-subtle);
    text-decoration: none;
}

.gh-dropdown-item--danger {
    color: var(--color-danger-fg);
}

.gh-dropdown-item--danger:hover {
    background: var(--color-danger-subtle);
}

/* ============================================
   Tooltip - Primer Style
   ============================================ */

.gh-tooltip {
    position: relative;
}

.gh-tooltip-content {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 8px;
    font-size: var(--text-xs);
    color: var(--color-fg-onEmphasis);
    background-color: #24292f;
    border-radius: var(--radius-md);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 80ms, visibility 80ms;
    pointer-events: none;
    z-index: var(--z-tooltip);
}

.gh-tooltip:hover .gh-tooltip-content {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   Legacy Support (btn- prefix)
   ============================================ */

.btn { @extend .gh-btn; }
.btn-primary { @extend .gh-btn--primary; }
.btn-secondary { @extend .gh-btn; }
.btn-danger { @extend .gh-btn--danger; }
.btn-outline { @extend .gh-btn--outline; }
.btn-sm { @extend .gh-btn--sm; }
.btn-lg { @extend .gh-btn--lg; }