/* Phase 5.5 — THE GRADE before/after comparison section. */
#section-grade {
    background: #050505;
    color: #fff;
    overflow: hidden;
}

#section-grade .section-title-vertical span {
    color: #fff;
}

.fpa-grade-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 74px 92px 54px;
    box-sizing: border-box;
}

.fpa-grade-intro {
    width: min(78vw, 1320px);
    margin: 0 auto 22px;
    text-align: left;
}

.fpa-grade-kicker {
    margin-bottom: 6px;
    font-family: 'Oswald', sans-serif;
    font-size: 11px;
    font-weight: 400;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: rgba(255,255,255,.56);
}

.fpa-grade-title {
    margin: 0;
    font-family: 'Oswald', sans-serif;
    font-size: clamp(28px, 3vw, 52px);
    font-weight: 400;
    line-height: 1;
    letter-spacing: .02em;
    text-transform: uppercase;
    color: #fff;
}

.fpa-grade-copy {
    max-width: 720px;
    margin: 10px 0 0;
    font-family: 'Raleway', sans-serif;
    font-size: 13px;
    font-weight: 400;
    line-height: 1.7;
    color: rgba(255,255,255,.68);
}

.fpa-grade-comparison {
    --fpa-grade-position: 50%;
    position: relative;
    width: min(78vw, 1320px);
    aspect-ratio: 16 / 9;
    margin: 0 auto;
    overflow: hidden;
    background: #111;
    box-shadow: 0 22px 60px rgba(0,0,0,.38);
    user-select: none;
    -webkit-user-select: none;
    touch-action: pan-y;
}

.fpa-grade-image,
.fpa-grade-final-layer {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.fpa-grade-image {
    display: block;
    object-fit: cover;
    pointer-events: none;
}

.fpa-grade-final-layer {
    clip-path: inset(0 calc(100% - var(--fpa-grade-position)) 0 0);
    will-change: clip-path;
}

.fpa-grade-divider {
    position: absolute;
    top: 0;
    bottom: 0;
    left: var(--fpa-grade-position);
    width: 1px;
    background: rgba(255,255,255,.95);
    transform: translateX(-.5px);
    pointer-events: none;
    z-index: 4;
}

.fpa-grade-handle {
    position: absolute;
    top: 50%;
    left: var(--fpa-grade-position);
    width: 48px;
    height: 48px;
    border: 1px solid rgba(255,255,255,.95);
    border-radius: 50%;
    background: rgba(0,0,0,.34);
    transform: translate(-50%, -50%);
    z-index: 5;
    pointer-events: none;
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
}

.fpa-grade-handle::before,
.fpa-grade-handle::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 7px;
    height: 7px;
    border-top: 1px solid #fff;
    border-left: 1px solid #fff;
}

.fpa-grade-handle::before {
    left: 12px;
    transform: translateY(-50%) rotate(-45deg);
}

.fpa-grade-handle::after {
    right: 12px;
    transform: translateY(-50%) rotate(135deg);
}

.fpa-grade-range {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    opacity: 0;
    cursor: ew-resize;
    z-index: 6;
}

.fpa-grade-label {
    position: absolute;
    top: 18px;
    z-index: 3;
    padding: 8px 10px;
    font-family: 'Oswald', sans-serif;
    font-size: 10px;
    letter-spacing: .16em;
    text-transform: uppercase;
    background: rgba(0,0,0,.42);
    color: #fff;
    pointer-events: none;
}

.fpa-grade-label-before { left: 18px; }
.fpa-grade-label-final { right: 18px; }

.fpa-grade-meta {
    width: min(78vw, 1320px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 12px;
    font-family: 'Oswald', sans-serif;
    font-size: 10px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: rgba(255,255,255,.5);
}

.fpa-grade-meta strong {
    font-weight: 400;
    color: rgba(255,255,255,.9);
}

@media only screen and (max-width: 1100px) {
    .fpa-grade-shell { padding-left: 74px; padding-right: 74px; }
    .fpa-grade-intro,
    .fpa-grade-comparison,
    .fpa-grade-meta { width: min(82vw, 1200px); }
}

@media only screen and (max-width: 900px) {
    #section-grade { min-height: auto; }
    .fpa-grade-shell {
        min-height: auto;
        padding: 92px 22px 84px;
    }
    .fpa-grade-intro,
    .fpa-grade-comparison,
    .fpa-grade-meta { width: 100%; }
    .fpa-grade-copy { font-size: 12px; }
    .fpa-grade-meta span:nth-child(2) { display: none; }
}

@media only screen and (max-width: 600px) {
    .fpa-grade-intro { margin-bottom: 16px; }
    .fpa-grade-title { font-size: 30px; }
    .fpa-grade-label { top: 10px; padding: 6px 7px; font-size: 9px; }
    .fpa-grade-label-before { left: 10px; }
    .fpa-grade-label-final { right: 10px; }
    .fpa-grade-handle { width: 40px; height: 40px; }
}