/* ==========================================================================
   STYLES DÀNH RIÊNG CHO MODULE WEBP2
   ========================================================================== */

/* Biến điều khiển thanh trượt so sánh */
:root {
    --webp2-slide-percent: 50%;
}

.webp2-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 30px;
}

/* KHỐI BÊN TRÁI: Trình diễn tính năng & Trình so sánh ảnh */
.webp2-presentation-space {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.webp2-brand-meta h1 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 12px;
    color: var(--icatdev-color-text);
}

.webp2-brand-meta p {
    color: var(--icatdev-color-text);
    opacity: 0.7;
    font-size: 0.9rem;
    line-height: 1.6;
    max-width: 600px;
}

/* Realtime Image Comparison Engine */
.webp2-comparison-engine {
    flex-grow: 1;
    margin-top: 30px;
    position: relative;
    width: 100%;
    background: var(--icatdev-color-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--icatdev-color-border);
    cursor: ew-resize;
}

.webp2-slider-layer {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
}

.webp2-slider-layer img {
    width: 100%; height: 100%;
    object-fit: cover;
    pointer-events: none;
}

.webp2-slider-layer.layer-optimized {
    clip-path: inset(0 0 0 var(--webp2-slide-percent));
}

.webp2-slider-divider {
    position: absolute;
    top: 0; bottom: 0;
    left: var(--webp2-slide-percent);
    width: 2px;
    background: var(--icatdev-color-text);
    pointer-events: none;
}

.webp2-slider-indicator-dot {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 36px; height: 36px;
    background: var(--icatdev-color-surface);
    border: 2px solid var(--icatdev-color-text);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.webp2-meta-tag {
    position: absolute;
    top: 15px;
    padding: 5px 12px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    border: 1px solid var(--icatdev-color-border);
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 600;
    z-index: 4;
}
.webp2-meta-tag.tag-orig { left: 15px; }
.webp2-meta-tag.tag-opt { right: 15px; }

/* KHỐI BÊN PHẢI: Khu vực xử lý Core Logic & Thao tác kéo thả */
.webp2-control-space {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 24px;
}

.webp2-dropzone-box {
    border: 2px dashed var(--icatdev-color-border);
    background-color: var(--icatdev-color-bg);
    border-radius: 16px;
    padding: 60px 30px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.webp2-dropzone-box:hover, .webp2-dropzone-box.dragover {
    border-color: var(--icatdev-color-text);
    background-color: var(--icatdev-color-border);
}

.webp2-dropzone-box input[type="file"] {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    opacity: 0;
    cursor: pointer;
}

.webp2-icon-hex {
    color: var(--icatdev-color-bg);
    background: var(--icatdev-color-text);
    padding: 16px;
    border-radius: 12px;
    display: inline-flex;
}

.webp2-dropzone-title { font-size: 1rem; font-weight: 600; }
.webp2-dropzone-desc { font-size: 0.8rem; opacity: 0.7; }

/* Progress & Output Panels */
.webp2-progress-panel, .webp2-output-panel {
    display: none;
    background: var(--icatdev-color-bg);
    border: 1px solid var(--icatdev-color-border);
    padding: 20px;
    border-radius: 12px;
}

.webp2-output-panel {
    animation: webp2PaneReveal 0.35s ease forwards;
}

@keyframes webp2PaneReveal {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.webp2-progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    font-size: 0.85rem;
}

.webp2-progress-status { display: flex; align-items: center; gap: 8px; }
.webp2-progress-track { background-color: var(--icatdev-color-border); height: 4px; border-radius: 2px; overflow: hidden; width: 100%; }
.webp2-progress-fill { background: var(--icatdev-color-text); height: 100%; width: 0%; border-radius: 2px; }

.webp2-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    background: var(--icatdev-color-text);
    color: var(--icatdev-color-bg);
    border: none;
    padding: 14px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s ease;
}

.webp2-action-btn:hover { opacity: 0.85; }

/* Responsive Breakpoints */
@media (max-width: 1024px) {
    .webp2-grid { grid-template-columns: 1fr; }
    .webp2-comparison-engine { height: 360px; }
}