/* ========================================
   SHOP BY PART — ENGINE / TRANSMISSION CARDS
   Glass panels, clip-paths, depth & motion
   ======================================== */

.part-category-section {
    background:
        radial-gradient(ellipse 80% 50% at 100% 0%, rgba(211, 47, 47, 0.09), transparent 55%),
        radial-gradient(ellipse 70% 45% at 0% 100%, rgba(26, 35, 55, 0.07), transparent 50%),
        linear-gradient(180deg, #f0f2f6 0%, #e4e7ee 100%);
    padding: 20px 20px;
    position: relative;
    overflow: hidden;
}

.part-category-section::before,
.part-category-section::after {
    content: '';
    position: absolute;
    pointer-events: none;
    z-index: 0;
    opacity: 0.55;
}

/* Soft diagonal glass streaks */
.part-category-section::before {
    width: 140%;
    height: 60%;
    top: -25%;
    left: -20%;
    background: linear-gradient(
        115deg,
        transparent 0%,
        rgba(255, 255, 255, 0.35) 42%,
        rgba(255, 255, 255, 0.08) 48%,
        transparent 52%
    );
    transform: rotate(-3deg);
}

.part-category-section::after {
    width: 80%;
    height: 70%;
    bottom: -35%;
    right: -15%;
    background: radial-gradient(circle at 70% 70%, rgba(211, 47, 47, 0.06), transparent 55%);
}

.part-category-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.part-category-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 28px;
}

.part-category-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: #d32f2f;
    padding: 8px 18px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 14px;
    border: 1px solid rgba(211, 47, 47, 0.18);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.part-category-title {
    font-size: clamp(1.65rem, 3.5vw, 2.25rem);
    font-weight: 700;
    color: #141418;
    line-height: 1.2;
    margin: 0 0 12px;
    text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
}

.part-category-title .highlight {
    color: #d32f2f;
}

.part-category-lead {
    font-size: clamp(15px, 1.6vw, 17px);
    color: #4a4a52;
    line-height: 1.65;
    margin: 0;
}

.part-category-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(18px, 3.5vw, 32px);
    align-items: stretch;
    perspective: 1200px;
}

.part-category-card {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    min-height: clamp(200px, 28vw, 290px);
    position: relative;
    isolation: isolate;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    outline: none;

    /* Frosted glass card */
    background: linear-gradient(
        145deg,
        rgba(255, 255, 255, 0.72) 0%,
        rgba(255, 255, 255, 0.48) 45%,
        rgba(248, 249, 252, 0.55) 100%
    );
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);

    border: 1px solid rgba(255, 255, 255, 0.85);
    box-shadow:
        0 4px 4px rgba(255, 255, 255, 0.65) inset,
        0 12px 40px rgba(20, 20, 28, 0.09),
        0 2px 0 rgba(255, 255, 255, 0.9) inset;

    /* Chamfered “panel” silhouette */
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 22px) 100%, 0 100%);

    transition:
        transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
        box-shadow 0.45s ease,
        border-color 0.35s ease,
        filter 0.35s ease;
}

/* Accent strip + depth line */
.part-category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, rgba(211, 47, 47, 0.85) 20%, #d32f2f 50%, rgba(211, 47, 47, 0.85) 80%, transparent);
    opacity: 0.85;
    z-index: 3;
    pointer-events: none;
}

.part-category-card--transmission {
    clip-path: polygon(22px 0, 100% 0, 100% 100%, 0 100%, 0 calc(100% - 18px));
}

.part-category-card--transmission::before {
    background: linear-gradient(90deg, transparent, rgba(183, 28, 28, 0.9) 35%, #b71c1c 50%, rgba(183, 28, 28, 0.9) 65%, transparent);
}

.part-category-card:hover {
    transform: translateY(-10px) rotate(-0.6deg) scale(1.015);
    box-shadow:
        0 4px 4px rgba(255, 255, 255, 0.7) inset,
        0 28px 56px rgba(211, 47, 47, 0.14),
        0 20px 40px rgba(20, 20, 28, 0.12),
        0 0 0 1px rgba(211, 47, 47, 0.2);
    border-color: rgba(255, 255, 255, 0.95);
    filter: saturate(1.05);
}

.part-category-card--transmission:hover {
    transform: translateY(-10px) rotate(0.6deg) scale(1.015);
    box-shadow:
        0 4px 4px rgba(255, 255, 255, 0.7) inset,
        0 28px 56px rgba(183, 28, 28, 0.12),
        0 20px 40px rgba(20, 20, 28, 0.12),
        0 0 0 1px rgba(183, 28, 28, 0.22);
}

.part-category-card:focus-visible {
    outline: 3px solid #d32f2f;
    outline-offset: 4px;
}

.part-category-card__media {
    min-height: 180px;
    position: relative;
    overflow: hidden;
    background-color: #12141a;
    background-image:
        linear-gradient(118deg, rgba(18, 20, 26, 0.92) 0%, rgba(18, 20, 26, 0.35) 42%, rgba(211, 47, 47, 0.12) 100%),
        var(--part-card-img, none);
    background-size: cover;
    background-position: center;
    z-index: 0;

    /* Angled cut into the text column — automotive panel */
    clip-path: polygon(0 0, 100% 0, 78% 100%, 0 100%);
    transform-origin: center center;
    transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1), filter 0.45s ease;
}

.part-category-card--transmission .part-category-card__media {
    clip-path: polygon(10% 0, 100% 0, 100% 100%, 0 100%);
    background-image:
        linear-gradient(-118deg, rgba(18, 20, 26, 0.92) 0%, rgba(18, 20, 26, 0.38) 45%, rgba(183, 28, 28, 0.14) 100%),
        var(--part-card-img, none);
}

/* Specular sweep on hover */
.part-category-card__media::after {
    content: '';
    position: absolute;
    inset: -20%;
    background: linear-gradient(
        105deg,
        transparent 0%,
        rgba(255, 255, 255, 0) 40%,
        rgba(255, 255, 255, 0.18) 49.5%,
        rgba(255, 255, 255, 0) 60%,
        transparent 100%
    );
    transform: translateX(-120%) skewX(-12deg);
    transition: transform 0.75s cubic-bezier(0.22, 1, 0.36, 1);
    pointer-events: none;
    z-index: 2;
}

.part-category-card:hover .part-category-card__media {
    transform: scale(1.07);
    filter: brightness(1.06) contrast(1.03);
}

.part-category-card:hover .part-category-card__media::after {
    transform: translateX(120%) skewX(-12deg);
}

.part-category-card--engine {
    --part-card-img: url("../img/product-img/2jz%20engine-1.jpg");
}

.part-category-card--transmission {
    --part-card-img: url("../img/product-img/t56%20transmission-1.jpg");
}

.part-category-card__body {
    padding: clamp(20px, 3vw, 30px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    position: relative;
    z-index: 1;
}

/* Subtle vignette on text side for contrast */
.part-category-card__body::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 120% 80% at 100% 50%, rgba(255, 255, 255, 0.25), transparent 65%);
    pointer-events: none;
    z-index: -1;
}

.part-category-card__eyebrow {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #c62828;
    text-shadow: 0 1px 0 rgba(255, 255, 255, 0.6);
}

.part-category-card__title {
    font-size: clamp(1.35rem, 2.4vw, 1.65rem);
    font-weight: 800;
    color: #0d0d10;
    margin: 0;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.part-category-card__text {
    font-size: 14px;
    line-height: 1.55;
    color: rgba(45, 45, 52, 0.92);
    margin: 0;
    flex: 1;
}

.part-category-card__cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
    font-size: 15px;
    font-weight: 700;
    color: #d32f2f;
    padding: 10px 0 0;
    border-top: 1px solid rgba(211, 47, 47, 0.2);
    transition: gap 0.3s ease, color 0.25s ease;
}

.part-category-card:hover .part-category-card__cta {
    gap: 12px;
    color: #b71c1c;
}

.part-category-card__cta i {
    font-size: 13px;
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.part-category-card:hover .part-category-card__cta i {
    transform: translateX(6px);
}

@media (max-width: 900px) {
    .part-category-card {
        grid-template-columns: 1fr;
        grid-template-rows: minmax(180px, 42vw) auto;
        min-height: 0;
        clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 16px) 100%, 0 100%);
    }

    .part-category-card--transmission {
        clip-path: polygon(16px 0, 100% 0, 100% 100%, 0 100%, 0 calc(100% - 14px));
    }

    .part-category-card__media {
        clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
        min-height: 200px;
    }

    .part-category-card--transmission .part-category-card__media {
        clip-path: polygon(0 12%, 100% 0, 100% 100%, 0 100%);
    }

    .part-category-card:hover {
        transform: translateY(-6px) scale(1.01);
    }

    .part-category-card--transmission:hover {
        transform: translateY(-6px) scale(1.01);
    }
}

@media (max-width: 640px) {
    .part-category-grid {
        grid-template-columns: 1fr;
    }

    .part-category-section::before {
        opacity: 0.35;
    }
}

@media (prefers-reduced-motion: reduce) {
    .part-category-card,
    .part-category-card__media,
    .part-category-card__media::after,
    .part-category-card__cta i {
        transition-duration: 0.01ms !important;
    }

    .part-category-card:hover {
        transform: none;
    }

    .part-category-card:hover .part-category-card__media {
        transform: none;
    }

    .part-category-card:hover .part-category-card__media::after {
        transform: none;
    }
}