/* ... existing styles ... */

/* =========================================
   SLIDE TRANSITIONS (Per-slide selectable)
   ========================================= */

/* ─── Default: Bounce (Legacy) ────────────── */
@keyframes slideEnterBounce {
    0% {
        opacity: 0;
        transform: scale(0.6) translateY(80px);
        filter: blur(8px);
    }
    50% {
        opacity: 1;
        transform: scale(1.06) translateY(-10px);
        filter: blur(0);
    }
    75% {
        transform: scale(0.97) translateY(4px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes slideExitFade {
    0% {
        opacity: 1;
        transform: scale(1);
        filter: blur(0);
    }
    100% {
        opacity: 0;
        transform: scale(1.08);
        filter: blur(6px);
    }
}

/* ─── Fade ─────────────────────────────────── */
@keyframes slideEnterFade {
    0%   { opacity: 0; filter: blur(6px); }
    100% { opacity: 1; filter: blur(0); }
}

/* ─── Slide from Right ─────────────────────── */
@keyframes slideEnterFromRight {
    0%   { opacity: 0; transform: translateX(100%); }
    100% { opacity: 1; transform: translateX(0); }
}

/* ─── Slide from Left ──────────────────────── */
@keyframes slideEnterFromLeft {
    0%   { opacity: 0; transform: translateX(-100%); }
    100% { opacity: 1; transform: translateX(0); }
}

/* ─── Slide from Bottom ────────────────────── */
@keyframes slideEnterFromBottom {
    0%   { opacity: 0; transform: translateY(100%); }
    100% { opacity: 1; transform: translateY(0); }
}

/* ─── Slide from Top ───────────────────────── */
@keyframes slideEnterFromTop {
    0%   { opacity: 0; transform: translateY(-100%); }
    100% { opacity: 1; transform: translateY(0); }
}

/* ─── Zoom In ──────────────────────────────── */
@keyframes slideEnterZoomIn {
    0%   { opacity: 0; transform: scale(0.15); filter: blur(8px); }
    60%  { opacity: 1; transform: scale(1.06); filter: blur(0); }
    100% { opacity: 1; transform: scale(1); }
}

/* ─── Zoom Out ─────────────────────────────── */
@keyframes slideEnterZoomOut {
    0%   { opacity: 0; transform: scale(2.5); filter: blur(8px); }
    100% { opacity: 1; transform: scale(1); filter: blur(0); }
}

/* ─── Flip Horizontal ──────────────────────── */
@keyframes slideEnterFlipH {
    0%   { opacity: 0; transform: perspective(1200px) rotateY(-180deg); }
    50%  { opacity: 1; transform: perspective(1200px) rotateY(15deg); }
    75%  { transform: perspective(1200px) rotateY(-5deg); }
    100% { opacity: 1; transform: perspective(1200px) rotateY(0); }
}

/* ─── Flip Vertical ────────────────────────── */
@keyframes slideEnterFlipV {
    0%   { opacity: 0; transform: perspective(1200px) rotateX(180deg); }
    50%  { opacity: 1; transform: perspective(1200px) rotateX(-10deg); }
    75%  { transform: perspective(1200px) rotateX(3deg); }
    100% { opacity: 1; transform: perspective(1200px) rotateX(0); }
}

/* ─── Rotate In ────────────────────────────── */
@keyframes slideEnterRotateIn {
    0%   { opacity: 0; transform: rotate(-45deg) scale(0.4); filter: blur(6px); }
    70%  { opacity: 1; transform: rotate(5deg) scale(1.03); filter: blur(0); }
    100% { opacity: 1; transform: rotate(0) scale(1); }
}

/* ─── Swing Down ───────────────────────────── */
@keyframes slideEnterSwing {
    0%   { opacity: 0; transform: perspective(800px) rotateX(-80deg); transform-origin: top center; }
    40%  { opacity: 1; transform: perspective(800px) rotateX(15deg); }
    65%  { transform: perspective(800px) rotateX(-8deg); }
    85%  { transform: perspective(800px) rotateX(3deg); }
    100% { opacity: 1; transform: perspective(800px) rotateX(0); }
}

/* ─── Curtain (Reveal) ─────────────────────── */
@keyframes slideEnterCurtain {
    0%   { clip-path: inset(0 50% 0 50%); opacity: 0; filter: blur(4px); }
    60%  { filter: blur(0); }
    100% { clip-path: inset(0 0 0 0); opacity: 1; filter: blur(0); }
}

/* ═══════════════════════════════════════════
   Active Classes — applied dynamically by JS
   ═══════════════════════════════════════════ */

/* Exit (same for all) */
.slide-exit-active {
    animation: slideExitFade 0.4s ease-in forwards;
    pointer-events: none;
}

/* Entry variants */
.slide-enter-active,
.slide-enter-bounce {
    animation: slideEnterBounce 1.2s cubic-bezier(0.34, 1.3, 0.64, 1) forwards;
}

.slide-enter-fade {
    animation: slideEnterFade 1s ease-out forwards;
}

.slide-enter-slideRight {
    animation: slideEnterFromRight 1s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.slide-enter-slideLeft {
    animation: slideEnterFromLeft 1s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.slide-enter-slideUp {
    animation: slideEnterFromBottom 1s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.slide-enter-slideDown {
    animation: slideEnterFromTop 1s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.slide-enter-zoomIn {
    animation: slideEnterZoomIn 1.1s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.slide-enter-zoomOut {
    animation: slideEnterZoomOut 1s ease-out forwards;
}

.slide-enter-flipH {
    animation: slideEnterFlipH 1.2s ease-out forwards;
}

.slide-enter-flipV {
    animation: slideEnterFlipV 1.2s ease-out forwards;
}

.slide-enter-rotateIn {
    animation: slideEnterRotateIn 1.1s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.slide-enter-swing {
    animation: slideEnterSwing 1.3s ease-out forwards;
}

.slide-enter-curtain {
    animation: slideEnterCurtain 1.2s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}


/* ═══════════════════════════════════════════
   Slide Transition Picker (in Slide Panel)
   ═══════════════════════════════════════════ */

/* Transition badge on each slide card */
.sp-transition-badge {
    position: absolute;
    bottom: 28px;
    right: 6px;
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 2px;
}

.sp-transition-btn {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    transition: all 0.2s ease;
    padding: 0;
}

.sp-transition-btn:hover {
    background: rgba(99, 102, 241, 0.7);
    color: #fff;
    transform: scale(1.15);
    border-color: rgba(99, 102, 241, 0.5);
}

.sp-transition-btn.has-transition {
    background: rgba(99, 102, 241, 0.55);
    color: #fff;
    border-color: rgba(99, 102, 241, 0.4);
}

.sp-transition-btn.has-transition:hover {
    background: rgba(99, 102, 241, 0.8);
}

/* Remove transition button */
.sp-transition-remove {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: rgba(239, 68, 68, 0.6);
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 0.5rem;
    display: none;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    padding: 0;
}

.sp-transition-badge:hover .sp-transition-remove.visible {
    display: flex;
}

.sp-transition-remove:hover {
    background: rgba(239, 68, 68, 0.9);
    transform: scale(1.15);
}

/* ─── Transition Picker Popup ────────────── */
.sp-transition-picker {
    position: fixed;
    z-index: 200001;
    width: 240px;
    max-height: 360px;
    background: var(--bg-surface-solid);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.06);
    overflow: hidden;
    display: none;
    flex-direction: column;
    animation: spTransPickerIn 0.2s ease-out;
}

.sp-transition-picker.show {
    display: flex;
}

@keyframes spTransPickerIn {
    from { opacity: 0; transform: translateY(8px) scale(0.96); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.sp-trans-picker-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-glass);
    flex-shrink: 0;
}

.sp-trans-picker-header h4 {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-main);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.sp-trans-picker-header h4 i {
    color: var(--accent-dynamic);
    font-size: 0.7rem;
}

.sp-trans-picker-close {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    transition: all 0.2s;
}

.sp-trans-picker-close:hover {
    background: var(--bg-item);
    color: var(--danger);
}

.sp-trans-picker-list {
    flex: 1;
    overflow-y: auto;
    padding: 6px;
}

.sp-trans-picker-list::-webkit-scrollbar {
    width: 3px;
}

.sp-trans-picker-list::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: 3px;
}

/* ─── Transition Option ──────────────────── */
.sp-trans-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 8px;
    cursor: pointer;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    transition: all 0.15s ease;
    color: var(--text-main);
}

.sp-trans-option:hover {
    background: var(--bg-item);
}

.sp-trans-option.active {
    background: rgba(99, 102, 241, 0.12);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.sp-trans-option-icon {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: var(--bg-item-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: var(--accent-dynamic);
    flex-shrink: 0;
    transition: all 0.2s;
}

.sp-trans-option:hover .sp-trans-option-icon {
    background: rgba(99, 102, 241, 0.15);
    transform: scale(1.08);
}

.sp-trans-option-info {
    flex: 1;
    min-width: 0;
}

.sp-trans-option-name {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-main);
    line-height: 1.2;
}

.sp-trans-option-desc {
    font-size: 0.6rem;
    color: var(--text-muted);
    opacity: 0.7;
    line-height: 1.2;
    margin-top: 1px;
}

/* None option styling */
.sp-trans-option.none-option {
    opacity: 0.7;
    border-bottom: 1px solid var(--border-glass);
    margin-bottom: 4px;
    padding-bottom: 10px;
    border-radius: 8px 8px 0 0;
}

.sp-trans-option.none-option .sp-trans-option-icon {
    color: var(--text-muted);
    background: transparent;
}

.sp-trans-option.none-option:hover {
    opacity: 1;
}