/* ==========================================================================
   File: Tool/convert/convert.css
   KHALA STUDIO — ACCESSIBLE CONVERT TOOL & WORKSPACE
   ========================================================================== */

#convert-viewport-node.hub-main-wrapper .hub-sub-header {
    margin: 20px 0 20px 0;
}

/* Screen Reader Only Utility */
.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Universal Focus-Visible Indicators for Keyboard Navigation */
.conv-btn-select:focus-visible,
.conv-btn-ghost:focus-visible,
.conv-type-picker-btn:focus-visible,
.conv-type-card:focus-visible,
.conv-cat-item:focus-visible,
.conv-fmt-btn:focus-visible,
.conv-file-card:focus-visible,
.conv-file-remove:focus-visible,
.conv-dock-btn:focus-visible,
.conv-dock-close:focus-visible,
.conv-merge-toggle input:focus-visible {
    outline: 2px solid var(--hub-accent) !important;
    outline-offset: 3px !important;
}

/* --------------------------------------------------------------------------
   Hero Upload Card (Cover Image: Tool/convert/img/upload.jpg)
   -------------------------------------------------------------------------- */
.conv-hero-card {
    width: 100%;
    min-height: 260px;
    background: var(--hub-soft) url("img/upload.jpg") center / cover no-repeat !important;
    border-radius: var(--hub-radius) !important;
    padding: 36px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    text-align: center;
    margin-bottom: 36px;
    border: none;
    position: relative;
    overflow: hidden;
    transition: filter .18s ease;
}

.conv-hero-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0) 35%, rgba(0, 0, 0, 0.65) 100%);
}

.conv-hero-card.is-dragging {
    filter: brightness(0.9);
}

.conv-hero-card > * {
    position: relative;
    z-index: 1;
}

.conv-btn-select {
    height: 44px;
    min-width: 140px;
    padding: 0 28px;
    border: none;
    border-radius: 22px;
    background: var(--hub-accent);
    color: #ffffff;
    font-family: inherit;
    font-size: 1rem !important;
    font-weight: 500 !important;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background-color .18s ease, opacity .18s ease;
    text-decoration: none;
}

[data-theme="dark"] .conv-btn-select {
    color: #000000;
}

.conv-btn-select:hover {
    opacity: 0.92;
}

.conv-hero-subtitle {
    margin: 14px 0 0 0;
    font-size: 1rem !important;
    color: #ffffff !important;
}

/* --------------------------------------------------------------------------
   Section: What type you can do?
   -------------------------------------------------------------------------- */
.conv-section-wrap {
    width: 100%;
    text-align: center;
    margin-bottom: 56px;
}

.conv-section-heading {
    font-size: 1.5rem !important;
    font-weight: 500 !important;
    color: var(--hub-title) !important;
    margin: 0 0 20px 0;
    letter-spacing: -0.01em;
}

.conv-types-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--hub-gap);
    width: 100%;
}

.conv-type-card {
    background: var(--hub-soft);
    border-radius: var(--hub-radius);
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    cursor: pointer;
    border: none;
    transition: background-color .18s ease;
    user-select: none;
}

.conv-type-card:hover {
    background: var(--hub-soft-hover);
}

.conv-type-name {
    font-size: 0.9375rem !important;
    font-weight: 500 !important;
    color: var(--hub-title) !important;
    white-space: nowrap;
}

.conv-badge {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.conv-badge .material-symbols-outlined {
    font-size: 26px;
}

.conv-badge-tag {
    position: absolute;
    bottom: 3px;
    font-size: 0.4375rem;
    font-weight: 700;
    font-family: inherit;
    color: #ffffff;
    background: currentColor;
    border-radius: 2px;
    padding: 1px 2px;
    line-height: 1;
}

/* --------------------------------------------------------------------------
   Workspace Toolbar & Accessible Dropdown Picker
   -------------------------------------------------------------------------- */
.conv-work-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
    background: var(--hub-soft);
    border-radius: var(--hub-radius);
    padding: 16px 20px;
    margin-bottom: 24px;
    position: relative;
}

.conv-btn-ghost {
    height: 40px;
    padding: 0 18px;
    border: none;
    border-radius: 20px;
    background: var(--hub-soft-hover);
    color: var(--hub-title);
    font: inherit;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: background-color .18s ease;
}

.conv-btn-ghost:hover {
    background: var(--hub-border);
    filter: brightness(0.96);
}

.conv-picker-wrapper {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.conv-picker-wrapper::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 12px;
}

.conv-type-picker-btn {
    height: 40px;
    padding: 0 18px;
    border: none;
    border-radius: 20px;
    background: var(--hub-soft-hover);
    color: var(--hub-title);
    font: inherit;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: background-color .18s ease;
}

.conv-type-picker-btn:hover {
    background: var(--hub-border);
}

.conv-type-picker-btn .material-symbols-outlined {
    font-size: 18px;
    transition: transform .2s ease;
}

.conv-picker-wrapper.is-hovered .conv-type-picker-btn .material-symbols-outlined,
.conv-type-picker-btn[aria-expanded="true"] .material-symbols-outlined {
    transform: rotate(180deg);
}

/* Dropdown Card */
.conv-format-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    width: 380px;
    background: var(--hub-soft);
    border-radius: 18px;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.16);
    padding: 14px;
    display: none;
    gap: 12px;
    z-index: 500;
    border: 1px solid var(--border-color);
}

.conv-picker-wrapper.is-hovered .conv-format-dropdown,
.conv-format-dropdown.is-active {
    display: flex;
    animation: hubFadeIn .18s ease;
}

.conv-format-categories {
    width: 130px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    border-right: 1px solid var(--border-color);
    padding-right: 10px;
}

.conv-cat-item {
    height: 38px;
    padding: 0 12px;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: var(--hub-text);
    font: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: background-color .15s ease, color .15s ease;
}

.conv-cat-item:hover,
.conv-cat-item.is-selected {
    background: var(--hub-bg);
    color: var(--hub-title);
    font-weight: 600;
}

.conv-cat-item .material-symbols-outlined {
    font-size: 16px;
}

.conv-format-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    align-content: flex-start;
}

.conv-fmt-btn {
    height: 40px;
    border: none;
    border-radius: 10px;
    background: var(--hub-soft-hover);
    color: var(--hub-title);
    font: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background-color .15s ease, transform .1s ease;
}

.conv-fmt-btn:hover {
    background: var(--hub-border);
}

.conv-fmt-btn.is-active {
    background: #007AFF !important;
    color: #ffffff !important;
    font-weight: 600;
}

.conv-merge-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--hub-title);
    font-size: 0.9375rem;
    cursor: pointer;
    user-select: none;
}

.conv-work-toolbar .conv-btn-select {
    margin-left: auto;
}

/* --------------------------------------------------------------------------
   Workspace Card Grid & Motion Systems
   -------------------------------------------------------------------------- */
.conv-work-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: var(--hub-gap);
    margin-bottom: 90px;
    position: relative;
}

.conv-file-card {
    position: relative;
    background: var(--hub-soft);
    border-radius: var(--hub-radius);
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    cursor: grab;
    user-select: none;
    touch-action: none;
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform;
}

.conv-file-card:active {
    cursor: grabbing;
}

.conv-file-card.is-placeholder {
    opacity: 0.25;
    transform: scale(0.96);
    pointer-events: none;
}

/* Top Layer 360° Floating Clone */
.conv-floating-clone {
    position: fixed;
    z-index: 999999 !important;
    pointer-events: none !important;
    margin: 0 !important;
    background: var(--hub-soft);
    border-radius: var(--hub-radius);
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.22);
    will-change: transform, box-shadow;
    transform-origin: center center;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.conv-file-thumb {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 14px;
    overflow: hidden;
    background: var(--hub-soft-hover);
}

.conv-file-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    pointer-events: none;
}

.conv-file-meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.conv-file-name {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--hub-title);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.conv-file-size {
    font-size: 0.75rem;
    color: var(--hub-text);
}

.conv-file-remove {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 26px;
    height: 26px;
    border: none;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.conv-file-remove .material-symbols-outlined {
    font-size: 16px;
}

/* --------------------------------------------------------------------------
   Sticky Download Dock Bar
   -------------------------------------------------------------------------- */
.conv-bottom-dock {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(140%);
    width: calc(100% - 32px);
    max-width: 960px;
    background: var(--hub-soft);
    border-radius: 28px;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.16);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 1000;
    transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.32s ease;
    opacity: 0;
    pointer-events: none;
}

.conv-bottom-dock.is-visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.conv-dock-left {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.conv-dock-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(52, 168, 83, 0.15);
    color: #34A853;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.conv-dock-icon .material-symbols-outlined {
    font-size: 22px;
}

.conv-dock-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.conv-dock-title {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--hub-title);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.conv-dock-meta {
    font-size: 0.75rem;
    color: var(--hub-text);
}

.conv-dock-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.conv-dock-btn {
    height: 40px;
    padding: 0 20px;
    border: none;
    border-radius: 20px;
    background: var(--hub-accent);
    color: #ffffff;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    cursor: pointer;
    transition: opacity .18s ease;
}

[data-theme="dark"] .conv-dock-btn {
    color: #000000;
}

.conv-dock-btn:hover {
    opacity: 0.92;
}

.conv-dock-btn .material-symbols-outlined {
    font-size: 18px;
}

.conv-dock-close {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: var(--hub-soft-hover);
    color: var(--hub-title);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.conv-dock-close .material-symbols-outlined {
    font-size: 18px;
}

/* --------------------------------------------------------------------------
   Accessibility: Reduced Motion Support
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* --------------------------------------------------------------------------
   Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 1000px) {
    .conv-types-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .conv-work-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 600px) {
    .conv-hero-card {
        min-height: 200px;
        padding: 24px 16px;
        margin-bottom: 24px;
    }
    .conv-section-heading {
        font-size: 1.25rem !important;
    }
    .conv-types-grid {
        grid-template-columns: 1fr;
    }
    .conv-work-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    .conv-work-toolbar .conv-btn-select {
        margin-left: 0;
    }
    .conv-work-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .conv-format-dropdown {
        width: 100%;
        left: 0;
    }
    .conv-bottom-dock {
        flex-direction: column;
        align-items: stretch;
        padding: 16px;
        bottom: 16px;
        border-radius: 20px;
    }
    .conv-dock-actions {
        justify-content: space-between;
    }
    .conv-dock-btn {
        flex: 1;
        justify-content: center;
    }
}