/* =================================================================
   1. DESIGN SYSTEM & GLOBAL STYLES
================================================================= */
:root {
    --color-primary: #B71C1C;
    --color-primary-dark: #8E1515;
    --color-dark: #121822;
    --color-text: #4A5568;
    --color-text-light: #718096;
    --color-surface: #FFFFFF;
    --color-background: #F8F9FC;
    --color-border: #E8EDF5;
    --font-primary: 'Jost', sans-serif;
    --border-radius-md: 16px;
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.06), 0 4px 6px -4px rgba(0, 0, 0, 0.06);
    --transition-main: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
}

.section {
    padding: 80px 0;
}

/* =================================================================
   2. HERO SECTION
================================================================= */
.solutions-hero {
    position: relative;
    padding: 120px 0;
    background-size: cover;
    background-position: center;
    color: var(--color-surface);
    text-align: center;
    background-color: var(--color-dark);
}

.solutions-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(to top, rgba(18, 24, 34, 0.8) 0%, rgba(18, 24, 34, 0.6) 50%, transparent 100%);
    z-index: 1;
}

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

.solutions-hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -1px;
    text-shadow: 0 2px 15px rgba(0, 0, 0, 0.3);
}

.solutions-hero p {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 1rem auto 0;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 300;
}

/* =================================================================
   3. STATIC FILTER BAR
================================================================= */
.filter-bar-wrapper {
    background-color: var(--color-surface);
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 999;
}

.filter-group {
    /* Added this for responsive stacking */
    /* On desktop, flex items will arrange side-by-side naturally */
    /* On mobile, Bootstrap classes d-md-none / d-none d-md-flex will handle visibility */
}

/* Styles for the filter-dropdown (Desktop/Tablet) */
.filter-dropdown .filter-label {
    font-weight: 600;
    color: var(--color-dark);
    margin-right: 1rem;
}

.btn-filter-dropdown {
    background-color: var(--color-background);
    color: var(--color-dark);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    /* Slightly rounded corners for the button */
    padding: 0.5rem 1.25rem;
    font-weight: 500;
    transition: var(--transition-main);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.btn-filter-dropdown:hover,
.btn-filter-dropdown.show {
    background-color: #E8EDF5;
    border-color: #E8EDF5;
    color: var(--color-dark);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.btn-filter-dropdown::after {
    /* Bootstrap dropdown arrow */
    margin-left: 0.75rem;
}

.filter-dropdown .dropdown-menu {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    padding: 0.5rem 0;
    min-width: 200px;
}

.filter-dropdown .dropdown-item {
    color: var(--color-text);
    padding: 0.75rem 1.25rem;
    font-weight: 400;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.filter-dropdown .dropdown-item:hover,
.filter-dropdown .dropdown-item.active {
    background-color: var(--color-primary);
    color: var(--color-surface);
}

/* Styles for the filter-select-mobile (Mobile) - Keep previous ones */
.filter-select-mobile .form-select {
    border-color: var(--color-border);
    border-radius: 8px;
    padding: 0.75rem 1.25rem;
    font-size: 0.95rem;
    color: var(--color-dark);
    background-color: var(--color-background);
    box-shadow: none;
    transition: border-color 0.2s ease;
}

.filter-select-mobile .form-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.2rem rgba(var(--color-primary), 0.25);
}


/* =================================================================
   4. PRODUCT GRID & CARDS
================================================================= */
.product-grid-section {
    background-color: var(--color-background);
}

.solution-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    transition: var(--transition-main);
    height: 100%;
    overflow: hidden;
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.solution-card .card-image-wrapper {
    height: 250px;
    overflow: hidden;
    display: block;
}

.solution-card .card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.solution-card:hover .card-image {
    transform: scale(1.05);
}

.solution-card .card-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.solution-card .card-tags {
    font-size: 0.8rem;
    color: var(--color-text-light);
    font-weight: 500;
    margin-bottom: 8px;
}

.solution-card .card-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-dark);
    line-height: 1.4;
}

.solution-card .card-description {
    color: var(--color-text);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.solution-card .card-specs {
    border-top: 1px solid var(--color-border);
    padding-top: 1.25rem;
    margin-top: auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    text-align: center;
}

.solution-card .spec-item i {
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
    display: block;
}

.solution-card .spec-item .spec-value {
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-dark);
    display: block;
}

.solution-card .spec-item .spec-label {
    font-size: 0.7rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    display: block;
}

.solution-card .btn-view-details {
    background-color: var(--color-primary);
    color: var(--color-surface);
    border-radius: 8px;
    padding: 12px 25px;
    text-align: center;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-main);
    margin-top: 1.5rem;
    display: block;
}

.solution-card .btn-view-details:hover {
    background-color: var(--color-primary-dark);
    box-shadow: 0 4px 15px rgba(183, 28, 28, 0.2);
}

/* =================================================================
   5. BRAND LOGOS CAROUSEL & CTA
================================================================= */
.brand-carousel-section {
    background-color: var(--color-surface);
}

.section-title {
    text-align: center;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 3rem;
}

.brand-swiper .brand-logo {
    max-width: 160px;
    height: 70px;
    object-fit: contain;
    transition: var(--transition-main);
}

.brand-swiper .swiper-slide:hover .brand-logo {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.05);
}

.contact-cta-section {
    background-color: var(--color-background);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.contact-cta-section h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
    color: var(--color-dark);
}

.contact-cta-section p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 2.5rem auto;
    color: var(--color-text);
}

.contact-cta-section .btn-cta {
    background-color: var(--color-primary);
    color: var(--color-surface);
    padding: 16px 45px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition-main);
    display: inline-block;
}

.contact-cta-section .btn-cta:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.contact-cta-section .btn-cta .fa-arrow-right {
    margin-left: 0.5rem;
    transition: transform 0.2s ease-out;
}

.contact-cta-section .btn-cta:hover .fa-arrow-right {
    transform: translateX(4px);
}

/* =================================================================
   6. RESPONSIVE DESIGN ADJUSTMENTS
================================================================= */

/* Medium devices (tablets, less than 992px) */
@media (max-width: 992px) {
    .filter-tabs .filter-label {
        display: none;
    }
}

/* Small devices (phones, less than 768px) */
@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

    /* --- Hero Section --- */
    .solutions-hero {
        padding: 80px 0;
    }

    .solutions-hero h1 {
        font-size: 2.2rem;
    }

    .solutions-hero p {
        font-size: 1.1rem;
    }

    /* --- Filter Bar --- */
    .filter-bar-wrapper {
        padding: 1rem 0;
    }

    .filter-dropdown {
        /* New: Hide desktop dropdowns on mobile */
        display: none;
    }

    .filter-group {
        width: 100%;
        margin-bottom: 1rem;
    }

    .filter-group:last-child {
        margin-bottom: 0;
    }

    /* --- Product Cards --- */
    .solution-card .card-content {
        padding: 20px;
    }

    .solution-card .card-title {
        font-size: 1.25rem;
    }

    .solution-card .card-specs {
        grid-template-columns: 1fr;
        gap: 0.75rem;
        text-align: left;
        border-top: none;
        padding-top: 0;
        margin-top: 1rem;
    }

    .solution-card .spec-item {
        display: flex;
        align-items: center;
        border-top: 1px solid var(--color-border);
        padding-top: 0.75rem;
    }

    .solution-card .spec-item:first-child {
        border-top: none;
        padding-top: 0;
    }

    .solution-card .spec-item i {
        margin-bottom: 0;
        margin-right: 10px;
        width: 20px;
    }

    .solution-card .spec-item .spec-value,
    .solution-card .spec-item .spec-label {
        display: inline-block;
        margin-right: 5px;
        font-size: 0.9rem;
    }

    .solution-card .spec-item .spec-label {
        font-size: 0.8rem;
    }

    /* --- CTA Section --- */
    .contact-cta-section h2 {
        font-size: 1.8rem;
    }

    .contact-cta-section p {
        font-size: 1rem;
    }
}