/*
 * Custom styles for the Domestic Solutions page with sticky sidebar
 * VERSION 2.1 - Corrected top spacing issue
 */

/* ===================================================================
   1. LAYOUT & SPACING
   =================================================================== */

/*
   NOTE: The incorrect 'margin-top' on '.domestic-solution-main' has been REMOVED.
   The space is now handled by the natural padding of the section below the hero.
*/

/* Main layout for the sidebar and content */
.solution-content-wrapper {
    padding: var(--section-padding) 0;
    background-color: var(--background-color);
}

.main-layout {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

/* ===================================================================
   2. STICKY SIDEBAR NAVIGATION STYLING
   =================================================================== */
#sidebar-nav {
    position: sticky;
    /* This value determines where the sidebar stops when you scroll down */
    top: 180px; /* (Approx. 80px header + 30px desired space) */
    left: 0;
    width: 280px;
    flex-shrink: 0;
    background-color: var(--surface-color);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.07);
    border: 1px solid #e9ecef;
    padding: 25px;
    z-index: 900;
}

/* Sidebar Title */
.sidebar-title {
    font-family: var(--heading-font);
    font-size: 1.5rem; /* 24px */
    font-weight: 700;
    color: var(--heading-color);
    margin-bottom: 0.75rem;
}

/* Sidebar Divider Line */
.sidebar-divider {
    margin-top: 0;
    margin-bottom: 1rem;
    border: 0;
    border-top: 1px solid #dee2e6;
}

#sidebar-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

#sidebar-nav ul li a {
    display: block;
    padding: 12px 15px;
    color: var(--default-color);
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease-in-out;
}

/* Hover state for non-active links (light green background) */
#sidebar-nav ul li a:hover:not(.active) {
    color: var(--accent-color);
    background-color: #e6f4ef;
}

/* Active link style (solid green background) */
#sidebar-nav ul li a.active {
    background-color: var(--accent-color);
    color: var(--contrast-color);
    font-weight: 600;
}

/* ===================================================================
   3. CONTENT DISPLAY AREA
   =================================================================== */
.content-display-area {
    flex-grow: 1;
}

.content-section {
    display: none;
    background-color: var(--surface-color);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.07);
    border: 1px solid #e9ecef;
    margin-bottom: 30px;
    animation: fadeIn 0.5s ease-in-out;
}

.content-section.active {
    display: block;
}

.content-section .tap-water-systems-container,
.content-section .borehole-systems-container,
.content-section .accessories-section-container {
    padding: 0;
    margin-top: 0;
    border-top: none;
    background-color: transparent;
    box-shadow: none;
}

.content-section .section-title {
    padding-bottom: 30px;
    margin-bottom: 30px;
    text-align: left;
}

.content-section .section-title h3::after {
    left: 0;
    transform: translateX(0);
}

/* ===================================================================
   4. RESPONSIVE ADJUSTMENTS
   =================================================================== */
@media (max-width: 991px) {
    .main-layout {
        flex-direction: column;
    }

    #sidebar-nav {
        position: static;
        width: 100%;
        margin-bottom: 30px;
    }

    .sidebar-title {
        text-align: center;
    }

    #sidebar-nav ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }
}

/* ===================================================================
   5. ANIMATIONS
   =================================================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}