/* mobile-fab.css: 모바일 플로팅 스크롤·메뉴 FAB (#darkthread-mobile-scroll-nav) */

#darkthread-mobile-scroll-nav.darkthread-site-mobile-fab,
.darkthread-mobile-scroll-nav {
    position: fixed;
    right: max(1rem, env(safe-area-inset-right));
    bottom: calc(max(1rem, env(safe-area-inset-bottom)) + 0.5rem);
    z-index: 70;
    display: none;
    flex-direction: column;
    gap: 0.65rem;
    opacity: 0;
    transform: translateY(0.65rem);
    pointer-events: none;
    transition: opacity 0.18s ease, transform 0.18s ease;
    align-items: flex-end;
}

#darkthread-mobile-scroll-nav.is-visible,
.darkthread-mobile-scroll-nav.is-visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: none;
}

.darkthread-mobile-scroll-nav__button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border: 1px solid rgba(148, 163, 184, 0.24);
    border-radius: 999px;
    background: rgba(9, 9, 9, 0.9);
    color: var(--dt-fg);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    cursor: pointer;
    pointer-events: auto;
    transition: transform 0.15s ease, background-color 0.15s ease, opacity 0.15s ease;
}

.darkthread-mobile-scroll-nav__button:hover {
    background: rgba(24, 24, 24, 0.96);
    transform: translateY(-1px);
}

.darkthread-mobile-scroll-nav__button:disabled {
    opacity: 0.38;
    cursor: default;
    transform: none;
}

.darkthread-mobile-scroll-nav__button svg {
    width: 1.25rem;
    height: 1.25rem;
}

.darkthread-mobile-scroll-nav__button i {
    font-size: 1rem;
    line-height: 1;
}

.darkthread-mobile-scroll-nav__stack {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.65rem;
}

.darkthread-mobile-scroll-nav__tray {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.8rem;
    width: max-content;
    min-width: min(12.5rem, calc(100vw - 2rem));
    max-width: calc(100vw - 2rem);
    padding: 0.8rem;
    border: 1px solid rgba(148, 163, 184, 0.22);
    border-radius: 1.4rem;
    background: rgba(4, 4, 4, 0.92);
    box-shadow: 0 24px 44px rgba(0, 0, 0, 0.34);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    opacity: 0;
    transform: translateY(0.45rem) scale(0.98);
    transform-origin: right bottom;
    pointer-events: none;
    transition: opacity 0.18s ease, transform 0.18s ease;
}

#darkthread-mobile-scroll-nav.is-menu-open .darkthread-mobile-scroll-nav__tray,
.darkthread-mobile-scroll-nav.is-menu-open .darkthread-mobile-scroll-nav__tray {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.darkthread-mobile-scroll-nav__action {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.7rem;
    min-width: 0;
    color: var(--dt-fg);
    text-decoration: none;
}

.darkthread-mobile-scroll-nav__action-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3.2rem;
    height: 3.2rem;
    min-width: 3.2rem;
    min-height: 3.2rem;
    flex: 0 0 3.2rem;
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 999px;
    background: rgba(9, 9, 9, 0.96);
    color: inherit;
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.22);
    cursor: pointer;
    transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.darkthread-mobile-scroll-nav__action-button:hover {
    background: rgba(24, 24, 24, 1);
    border-color: rgba(248, 113, 113, 0.35);
    transform: translateY(-1px);
}

.darkthread-mobile-scroll-nav__action-button i {
    font-size: 1rem;
    line-height: 1;
}

.darkthread-mobile-scroll-nav__action-label {
    flex: 1 1 auto;
    min-width: 0;
    max-width: 100%;
    white-space: nowrap;
    font-size: 0.8rem;
    font-weight: 600;
    line-height: 1.15;
    text-align: left;
    color: var(--dt-fg-muted);
    word-break: keep-all;
}

.darkthread-mobile-scroll-nav__dialog {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    width: 100vw;
    height: 100vh;
    padding: 0;
    margin: 0;
    border: 0;
    background: transparent;
    max-width: none;
    max-height: none;
    overflow: visible;
    pointer-events: auto;
}

.darkthread-mobile-scroll-nav__dialog[open] {
    display: flex;
    inset: 0;
}

.darkthread-mobile-scroll-nav__dialog::backdrop {
    background: rgba(0, 0, 0, 0.62);
}

.darkthread-mobile-scroll-nav__dialog-panel {
    width: min(24rem, calc(100vw - 2rem));
    border: 1px solid rgba(148, 163, 184, 0.16);
    border-radius: 1.25rem;
    background: #090909;
    color: var(--dt-fg);
    box-shadow: 0 28px 56px rgba(0, 0, 0, 0.42);
    overflow: hidden;
}

.darkthread-mobile-scroll-nav__dialog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 1rem 1rem 0.8rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.darkthread-mobile-scroll-nav__dialog-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--dt-fg);
}

.darkthread-mobile-scroll-nav__dialog-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 999px;
    background: rgba(9, 9, 9, 0.92);
    color: var(--dt-fg);
    cursor: pointer;
}

.darkthread-mobile-scroll-nav__dialog-body {
    display: flex;
    flex-direction: column;
    padding: 0.5rem 1rem 1rem;
}

.darkthread-mobile-scroll-nav__info-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.8rem 0.2rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.darkthread-mobile-scroll-nav__info-label {
    flex: 0 0 auto;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--dt-fg-muted);
}

.darkthread-mobile-scroll-nav__info-value {
    min-width: 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dt-fg);
    word-break: break-word;
    text-align: right;
}

.darkthread-mobile-scroll-nav__info-row:last-child {
    border-bottom: 0;
}

/* 모바일·태블릿에서 FAB 표시 (게시판·공지 등 board-mobile.css 대체) */
@media (max-width: 1299px) {
    #darkthread-mobile-scroll-nav.darkthread-site-mobile-fab,
    .darkthread-mobile-scroll-nav {
        display: flex;
    }
}

/* 홈: FAB만 로드되는 페이지 */
@media (max-width: 1299px) {
    body.darkthread-home #darkthread-mobile-scroll-nav.darkthread-site-mobile-fab,
    body.darkthread-home .darkthread-mobile-scroll-nav {
        display: flex;
    }
}

/* ===== v2 라이트 테마 (html 클래스 — 페이지 CSS와 분리) ===== */

html.darkthread-board-list-v2-theme-light #darkthread-mobile-scroll-nav .darkthread-mobile-scroll-nav__button,
html.darkthread-board-list-v2-theme-light .darkthread-mobile-scroll-nav__button {
    border-color: #e5e7eb;
    background: rgba(255, 255, 255, 0.94);
    color: var(--dt-fg);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.14);
}

html.darkthread-board-list-v2-theme-light #darkthread-mobile-scroll-nav .darkthread-mobile-scroll-nav__action-button,
html.darkthread-board-list-v2-theme-light .darkthread-mobile-scroll-nav__action-button {
    border-color: #e5e7eb;
    background: rgba(255, 255, 255, 0.96);
    color: var(--dt-fg);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.12);
}

html.darkthread-board-list-v2-theme-light #darkthread-mobile-scroll-nav .darkthread-mobile-scroll-nav__tray,
html.darkthread-board-list-v2-theme-light .darkthread-mobile-scroll-nav__tray {
    border-color: #e5e7eb;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.14);
}

html.darkthread-board-list-v2-theme-light #darkthread-mobile-scroll-nav .darkthread-mobile-scroll-nav__action-label,
html.darkthread-board-list-v2-theme-light .darkthread-mobile-scroll-nav__action-label {
    color: var(--dt-fg-muted);
}

html.darkthread-board-list-v2-theme-light #darkthread-mobile-scroll-nav .darkthread-mobile-scroll-nav__dialog-panel,
html.darkthread-board-list-v2-theme-light .darkthread-mobile-scroll-nav__dialog-panel {
    border-color: #e5e7eb;
    background: #fff;
    color: var(--dt-fg);
    box-shadow: 0 22px 48px rgba(15, 23, 42, 0.14);
}

html.darkthread-board-list-v2-theme-light #darkthread-mobile-scroll-nav .darkthread-mobile-scroll-nav__dialog-title,
html.darkthread-board-list-v2-theme-light .darkthread-mobile-scroll-nav__dialog-title {
    color: var(--dt-fg-strong);
}

html.darkthread-board-list-v2-theme-light #darkthread-mobile-scroll-nav .darkthread-mobile-scroll-nav__dialog-header,
html.darkthread-board-list-v2-theme-light .darkthread-mobile-scroll-nav__dialog-header {
    border-bottom-color: #e5e7eb;
}

html.darkthread-board-list-v2-theme-light #darkthread-mobile-scroll-nav .darkthread-mobile-scroll-nav__info-label,
html.darkthread-board-list-v2-theme-light .darkthread-mobile-scroll-nav__info-label {
    color: var(--dt-fg-soft);
}

html.darkthread-board-list-v2-theme-light #darkthread-mobile-scroll-nav .darkthread-mobile-scroll-nav__info-value,
html.darkthread-board-list-v2-theme-light .darkthread-mobile-scroll-nav__info-value {
    color: var(--dt-fg-strong);
}

/* 작성·수정: FAB 저장 버튼 강조 */
body.darkthread-editor-page #darkthread-mobile-scroll-nav [data-mobile-fab-pinned-action="save"],
body.darkthread-editor-page .darkthread-mobile-scroll-nav [data-mobile-fab-pinned-action="save"] {
    border-color: rgba(185, 28, 28, 0.5);
    background: rgba(127, 29, 29, 0.92);
    color: #fff;
}

html.darkthread-board-list-v2-theme-light body.darkthread-editor-page #darkthread-mobile-scroll-nav [data-mobile-fab-pinned-action="save"],
html.darkthread-board-list-v2-theme-light body.darkthread-editor-page .darkthread-mobile-scroll-nav [data-mobile-fab-pinned-action="save"] {
    border-color: #b91c1c;
    background: #991b1b;
    color: #fff;
    box-shadow: 0 16px 32px rgba(153, 27, 27, 0.28);
}