:root {
    --color-primary: #facc15;
    --color-primary-strong: #a16207;
    --color-secondary: #1f2937;
    --color-bg: #f6f8fb;
    --color-text: #1f2937;
    --color-white: #ffffff;
    --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
}

a {
    color: inherit;
}

.container {
    width: min(1100px, 92%);
    margin-inline: auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(4px);
    border-bottom: 1px solid #e5e7eb;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    padding: 14px 0;
}

.brand-abbr {
    margin: 0;
    font-size: 0.85rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.brand-name {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-primary-strong);
}

.main-nav {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

.main-nav a {
    text-decoration: none;
    font-weight: 600;
    color: #374151;
}

.hero {
    position: relative;
    background-image:
        linear-gradient(rgba(15, 23, 42, 0.58), rgba(15, 23, 42, 0.58)),
        url("../images/bps-hero-concrete.jpg");
    background-size: cover;
    background-position: center;
    color: #f8fafc;
    padding: 110px 0 90px;
}

.hero h1 {
    margin-top: 10px;
    margin-bottom: 14px;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    line-height: 1.2;
}

.hero p {
    max-width: 740px;
}

.hero-kicker {
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 1.8px;
    font-size: 0.9rem;
    opacity: 0.9;
}

.btn-primary {
    display: inline-block;
    margin-top: 10px;
    padding: 11px 20px;
    border-radius: 8px;
    background: var(--color-secondary);
    color: var(--color-white);
    text-decoration: none;
    font-weight: 700;
}

.section {
    padding: 70px 0;
}

.section-alt {
    position: relative;
    background-image:
        linear-gradient(rgba(17, 24, 39, 0.6), rgba(17, 24, 39, 0.6)),
        url("../images/bps-products-bg.jpg");
    background-size: cover;
    background-position: center;
    color: #f8fafc;
}

.section h2 {
    margin-top: 0;
    margin-bottom: 16px;
    color: var(--color-primary-strong);
}

.section-alt h2 {
    color: #fde047;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
    margin-top: 24px;
}

.product-card {
    background: var(--color-white);
    border-radius: 10px;
    box-shadow: var(--shadow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.product-card-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
}

.product-card-body {
    padding: 18px 22px 22px;
    color: #111827;
}

.product-card h3,
.product-card h2 {
    margin-top: 0;
    color: var(--color-primary-strong);
}

.product-card ul {
    padding-left: 18px;
    margin-bottom: 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-top: 24px;
}

.gallery-item {
    margin: 0;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    background: var(--color-white);
}

.gallery-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-item figcaption {
    padding: 10px 12px;
    font-weight: 600;
    color: var(--color-primary-strong);
    text-align: center;
}

.site-footer {
    position: relative;
    padding: 50px 0;
    background-image:
        linear-gradient(rgba(2, 6, 23, 0.82), rgba(2, 6, 23, 0.82)),
        url("../images/bps-footer-texture.jpg");
    background-size: cover;
    background-position: center;
    color: #e5e7eb;
}

.site-footer h2 {
    margin-top: 0;
    color: var(--color-white);
}

.site-footer a {
    color: #fef08a;
}

.quote-form-wrap {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(250, 204, 21, 0.35);
    border-radius: 12px;
    padding: 22px;
    margin-bottom: 28px;
}

.quote-form-wrap h2 {
    margin-bottom: 6px;
}

.quote-form-wrap p {
    margin-top: 0;
}

.quote-notice {
    border-radius: 8px;
    padding: 10px 12px;
    margin: 14px 0 16px;
    font-weight: 600;
}

.quote-notice-success {
    background: rgba(34, 197, 94, 0.2);
    border: 1px solid rgba(34, 197, 94, 0.6);
    color: #dcfce7;
}

.quote-notice-error {
    background: rgba(239, 68, 68, 0.18);
    border: 1px solid rgba(239, 68, 68, 0.5);
    color: #fee2e2;
}

.quote-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-field-full {
    grid-column: 1 / -1;
}

.quote-form label {
    font-weight: 600;
    color: #f8fafc;
}

.quote-form input,
.quote-form select,
.quote-form textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #475569;
    border-radius: 8px;
    background: #111827;
    color: #f9fafb;
    font: inherit;
}

.quote-form textarea {
    resize: vertical;
}

.quote-form input:focus,
.quote-form select:focus,
.quote-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(250, 204, 21, 0.2);
}

.quote-form button {
    border: 0;
    cursor: pointer;
}

@media (max-width: 800px) {
    .header-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .hero {
        padding: 90px 0 70px;
    }

    .quote-form {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}