/* oil-finder */
.page-hero {
    padding: 125px 60px 150px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #111 0%, var(--black) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
}

/* FINDER LAYOUT */
.finder-wrapper {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 2px;
    padding: 0 60px 80px;
}

/* FILTER PANEL */
.filter-panel {
    background: var(--mid);
    padding: 40px 32px;
    border: 1px solid var(--border);
}

.step-indicator {
    display: flex;
    gap: 0;
    margin-bottom: 28px;
}

.step {
    flex: 1;
    padding: 8px 10px;
    border: 1px solid var(--border);
    font-family: var(--font-display);
    font-size: var(--typ-small);
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.25);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.3s;
}

    .step.active {
        border-color: var(--yellow-border);
        color: var(--yellow);
        background: rgba(245,195,0,0.06);
    }

    .step.done {
        border-color: var(--yellow-hover);
        color: rgba(245,195,0,0.5);
    }

.step-num {
    width: 16px;
    height: 16px;
    background: var(--yellow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--typ-small);
    color: var(--black);
    font-weight: 900;
}

.step:not(.active):not(.done) .step-num {
    background: rgba(255,255,255,0.15);
}

.filter-title {
    font-family: var(--font-display);
    font-size: var(--typ-title);
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 6px;
}

.filter-sub {
    font-size: var(--typ-body);
    font-weight: 300;
    color: var(--text);
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
    line-height: 1.6;
}

.form-field {
    margin-bottom: 18px;
}

.field-label {
    font-family: var(--font-display);
    font-size: var(--typ-small);
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: #FFFFFF;
    display: block;
    margin-bottom: 7px;
}

.field-select {
    width: 100%;
    padding: 13px 16px;
    background: var(--form-bg);
    border: 1px solid rgba(0,0,0,0.08);
    color: #000000;
    font-family: var(--font-body);
    font-size: var(--typ-body);
    outline: none;
    appearance: none;
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s, color 0.2s;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 7L11 1' stroke='%23000000' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 12px;
    background-color: var(--form-bg);
}

    .field-select:focus {
        border-color: var(--yellow);
    }

    .field-select:disabled {
        background-color: #A9A9A9;
        color: #6D6D6D;
        cursor: not-allowed;
        opacity: 1;
        background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 7L11 1' stroke='%236D6D6D' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
    }

    .field-select option {
        background: var(--form-bg);
        color: #000000;
    }

.search-btn {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 16px;
    background: var(--yellow);
    color: var(--black);
    font-family: var(--font-display);
    font-size: var(--typ-small);
    font-weight: 800;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    text-align: center;
    border: none;
    cursor: pointer;
    margin-top: 8px;
    clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
    transition: transform 0.15s, box-shadow 0.2s;
}

    .search-btn:hover:not(:disabled) {
        transform: translateY(-2px);
        box-shadow: 0 8px 24px var(--yellow-hover);
    }

    .search-btn:disabled {
        opacity: 0.5;
        cursor: not-allowed;
    }

.reset-btn {
    width: 100%;
    padding: 12px;
    background: transparent;
    color: rgba(255,255,255,0.4);
    font-family: var(--font-display);
    font-size: var(--typ-small);
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    border: 1px solid var(--border);
    cursor: pointer;
    margin-top: 10px;
    transition: color 0.2s, border-color 0.2s;
}

    .reset-btn:hover {
        color: var(--white);
        border-color: rgba(255,255,255,0.2);
    }

/* RESULTS PANEL */
.results-panel {
    background: var(--dark);
    border: 1px solid var(--border);
    min-height: 500px;
    display: flex;
    flex-direction: column;
}

/* Empty state */
.state-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    padding: 60px;
    text-align: center;
}

.state-results-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    padding: 60px;
    text-align: center;
}

    .state-results-empty[hidden] {
        display: none !important;
    }

.state-icon {
    display: block;
    width: 37px;
    height: 37px;
    margin-bottom: 20px;
}

.state-title {
    font-family: var(--font-display);
    font-size: var(--typ-feature);
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 17px;
}

.state-text {
    font-size: var(--typ-body);
    font-weight: 300;
    color: rgba(255,255,255,0.45);
    line-height: 1.6;
    max-width: 300px;
}

/* Loading */
.state-loading {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    gap: 16px;
}

.loader {
    width: 36px;
    height: 36px;
    border: 2px solid rgba(245,195,0,0.15);
    border-top-color: var(--yellow);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loader-text {
    font-family: var(--font-display);
    font-size: var(--typ-small);
    font-weight: 700;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.4);
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%,100% {
        opacity: 0.4;
    }

    50% {
        opacity: 1;
    }
}

/* Results */
.state-results {
    display: none;
    flex-direction: column;
    flex: 1;
}

.results-header {
    padding: 22px 28px;
    color: #FFFFFF;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.results-label {
    font-family: var(--font-display);
    font-size: var(--typ-body);
    font-weight: 900;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(255,255,255,1);
    letter-spacing: 24%;
}

    .results-label span {
        color: var(--yellow);
    }

.results-vehicle-tag {
    font-family: var(--font-display);
    font-size: var(--typ-small);
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--yellow);
}

.result-item {
    padding: 22px 28px;
    border-bottom: 1px solid var(--border);
    display: grid;
    grid-template-columns: 3fr 7fr;
    gap: 20px;
    align-items: end;
    cursor: pointer;
    transition: background 0.2s;
    position: relative;
    box-sizing: border-box;
}

    .result-item::after {
        content: '';
        position: absolute;
        right: 28px;
        top: 50%;
        transform: translateY(-50%);
        width: 17px;
        height: 10px;
        background-color: rgba(255, 255, 255, 1);
        -webkit-mask: url('/images/result-arrow.svg') no-repeat center / contain;
        mask: url('/images/result-arrow.svg') no-repeat center / contain;
        transition: background-color 0.2s, right 0.2s;
    }

    .result-item:hover {
        background: rgba(245,195,0,0.04);
    }

        .result-item:hover::after {
            background-color: var(--yellow);
            right: 20px;
        }

    .result-item.alt-option {
        background: rgba(255,255,255,0.02);
    }

.result-img-wrap {
    width: 100%;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    overflow: hidden;
}

    .result-img-wrap img {
        max-height: 250px;
        width: 100%;
        height: auto;
        object-fit: contain;
    }

.result-img-placeholder {
    width: 100%;
    max-height: 250px;
    aspect-ratio: 1;
    background: rgba(255,255,255,0.04);
}

.result-info {
    width: 100%;
    min-width: 0;
    padding-right: 40px;
}

.result-badge {
    font-family: var(--font-display);
    font-size: var(--typ-small);
    font-weight: 700;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--yellow);
    margin-bottom: 4px;
}

.result-name {
    font-family: var(--font-display);
    font-size: var(--typ-title);
    font-weight: 900;
    text-transform: uppercase;
    line-height: 1.1;
    margin-bottom: 6px;
}

    .result-name span {
        color: var(--yellow);
    }

.result-desc {
    font-size: var(--typ-body);
    font-weight: 300;
    color: rgba(255,255,255,1);
    line-height: 1.55;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
    text-overflow: ellipsis;
}

.alt-label {
    padding: 18px 28px 10px;
    font-family: var(--font-body);
    font-size: var(--typ-body);
    font-weight: 400;
    font-style: normal;
    color: rgba(255,255,255,0.75);
    border-bottom: none;
    letter-spacing: 24%;
}

/* Product detail */
.state-detail {
    display: none;
    flex-direction: column;
    flex: 1;
}

.detail-back {
    padding: 18px 28px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text);
    font-family: var(--font-display);
    font-size: var(--typ-small);
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    transition: color 0.2s;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
    text-align: left;
    width: 100%;
}

    .detail-back:hover {
        color: var(--yellow);
    }

.detail-hero {
    padding: 36px 28px;
    border-bottom: 1px solid var(--border);
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 28px;
    align-items: start;
}

.detail-product-img {
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    min-height: 160px;
}

    .detail-product-img img {
        width: 100%;
        height: auto;
        object-fit: contain;
    }

.detail-product-img-placeholder {
    width: 100%;
    min-height: 160px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
}

.detail-badge {
    font-family: var(--font-display);
    font-size: var(--typ-small);
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--yellow);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

    .detail-badge::before {
        content: '';
        width: 28px;
        height: 1px;
        background: var(--yellow);
        flex-shrink: 0;
    }

.detail-name {
    font-family: var(--font-display);
    font-size: var(--typ-feature);
    font-weight: 900;
    text-transform: uppercase;
    line-height: 1;
    margin-bottom: 6px;
}

.detail-viscosity {
    font-family: var(--font-display);
    font-size: var(--typ-body);
    font-weight: 700;
    color: var(--yellow);
    margin-bottom: 12px;
}

.detail-desc {
    font-size: var(--typ-body);
    font-weight: 300;
    line-height: 1.7;
    color: var(--text);
}

.detail-specs-title {
    font-family: var(--font-display);
    font-size: var(--typ-small);
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--yellow);
    padding: 20px 28px 12px;
    border-top: 1px solid var(--border);
}

.detail-specs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    padding: 0 28px;
}

.detail-spec {
    background: #fff;
    padding: 16px 18px;
    border: none;
}

.detail-spec-key {
    font-family: var(--font-display);
    font-size: var(--typ-small);
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.detail-spec-val {
    font-family: var(--font-display);
    font-size: var(--typ-title);
    font-weight: 800;
    color: var(--text-dark);
}

.detail-benefits-title {
    font-family: var(--font-display);
    font-size: var(--typ-small);
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--yellow);
    padding: 20px 28px 12px;
}

.detail-benefits-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 0 28px 8px;
}

.detail-benefit {
    background: #fff;
    padding: 18px;
    border: none;
}

.detail-benefit-title {
    font-family: var(--font-display);
    font-size: var(--typ-body);
    font-weight: 800;
    text-transform: uppercase;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.detail-benefit-text {
    font-size: var(--typ-small);
    font-weight: 400;
    color: var(--text-dark-sub);
    line-height: 1.55;
}

.detail-cta {
    padding: 24px 28px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 10px;
    margin-top: auto;
    flex-wrap: wrap;
}

.btn-primary-sm {
    font-family: var(--font-display);
    font-size: var(--typ-small);
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    background: var(--yellow);
    color: var(--black);
    padding: 14px 28px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
    transition: transform 0.15s;
}

    .btn-primary-sm:hover {
        transform: translateY(-2px);
    }

.btn-outline-sm {
    font-family: var(--font-display);
    font-size: var(--typ-small);
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    background: #1a1a1a;
    color: #fff;
    padding: 14px 20px;
    border: 1px solid #2a2a2a;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
    text-decoration: none;
}

    .btn-outline-sm:hover {
        background: #222;
        border-color: #3a3a3a;
        color: #fff;
    }

/* RESPONSIVE */
@media (max-width: 1024px) {
    nav {
        padding: 14px 32px;
    }

    .page-hero {
        padding: 100px 32px 48px;
    }

    .finder-wrapper {
        grid-template-columns: 320px 1fr;
        padding: 0 32px 60px;
    }

    footer {
        padding: 48px 32px 24px;
    }

    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    nav {
        padding: 14px 20px;
    }

    .nav-links {
        display: none;
    }

    .page-hero {
        padding: 90px 20px 40px;
    }

    .finder-wrapper {
        grid-template-columns: 1fr;
        padding: 0 20px 48px;
    }

    .detail-hero {
        grid-template-columns: 1fr;
    }

    .detail-specs-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .detail-benefits-grid {
        grid-template-columns: 1fr;
    }

    footer {
        padding: 40px 20px 24px;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}