/* ==========================================================================
   Alaina Engineering Services WLL - Isolated Projects Portfolio (Part 1)
   ========================================================================== */

.portfolio-hero {
    padding-top: 140px; /* Clearance gap prevents fixed dropdown panel collision */
    padding-bottom: 80px;
}

/* Central Timeline Structural Track Line Layout */
.portfolio-timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.timeline-item {
    background: linear-gradient(135deg, var(--carbon-medium), var(--carbon-dark));
    border: 1px solid var(--carbon-light);
    border-radius: 16px;
    padding: 30px;
    display: grid;
    grid-template-columns: 1fr 2fr; /* Splits card into Metadata Left, Image Grid Right */
    gap: 30px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.05);
    position: relative;
    overflow: hidden;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.timeline-item:hover {
    border-color: var(--accent-green);
    box-shadow: 0 10px 25px rgba(82, 183, 136, 0.08);
}

/* Moving Laser Scanline Overlay Matrix Layer Effect */
.timeline-item::before {
    content: '';
    position: absolute;
    top: 0;
	left: 0;
	right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(116, 198, 157, 0.2), transparent);
    animation: scanline 4.5s linear infinite;
    pointer-events: none;
    z-index: 2;
}

@keyframes scanline {
    0% { transform: translateY(0); }
    100% { transform: translateY(500px); }
}

/* Matrix Background Key Serialization Elements */
.timeline-item::after {
    content: attr(data-index);
    position: absolute;
    top: 15px;
    left: 20px;
    font-size: 56px;
    font-weight: 900;
    color: rgba(82, 183, 136, 0.03);
    font-family: monospace;
    pointer-events: none;
    line-height: 1;
}

/* Left Metadata Columns Control */
.project-meta {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: 10px;
    z-index: 2;
}

.client-label {
    display: inline-block;
    align-self: flex-start;
    background-color: var(--carbon-light);
    color: var(--accent-cyan);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 12px;
    border: 1px solid rgba(82, 183, 136, 0.2);
}

.project-meta h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-meta .location {
    font-size: 13.5px;
    color: var(--accent-gold);
    font-weight: 600;
}
/* ==========================================================================
   Alaina Engineering Services WLL - Isolated Projects Portfolio (Part 2)
   ========================================================================== */

/* Right Details Text Content & Descriptions */
.project-details {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
}

/* Your Flawless Internal Image Padding Showcase Architecture Fix */
.project-image-showcase {
    display: grid;
    grid-template-columns: 2fr 1fr;
    grid-template-rows: 110px 110px;
    gap: 15px;
    width: 100%;
}

/* Horizontal alignment mapping for non-featured gallery logs */
.project-image-showcase.text-only-fallback {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: 130px;
}

.img-frame-main {
    grid-row: span 2;
    background-color: var(--primary-black);
    border: 1px solid var(--carbon-light);
    border-radius: 8px;
    overflow: hidden;
}

.img-frame-thumb {
    background-color: var(--primary-black);
    border: 1px solid var(--carbon-light);
    border-radius: 8px;
    overflow: hidden;
}

.img-frame-main img,
.img-frame-thumb img {
    width: 100%;
    height: 100%;
    object-fit: contain !important; /* Locks structural masts and barriers inside boundaries safely */
    padding: 10px !important;       /* Your exact padding alignment adjustment fix */
    filter: grayscale(15%) contrast(1.05);
    transition: transform 0.3s ease, filter 0.3s ease;
}

.timeline-item:hover img {
    filter: grayscale(0%) contrast(1.1);
    transform: scale(1.02);
}

/* ==========================================================================
   Mobile Adaptive Device Scaling Breakpoint Optimizations
   ========================================================================== */
@media (max-width: 850px) {
    .timeline-item {
        grid-template-columns: 1fr; /* Collapses timeline horizontal split into single vertical stacks */
        gap: 20px;
        padding: 25px;
    }
    
    .timeline-item::after {
        left: auto;
        right: 20px; /* Swaps serial background position securely on small panels */
    }
    
    .project-image-showcase {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: 120px;
    }
    
    .img-frame-main {
        grid-row: span 1; /* Normalizes thumbnail height dimensions on smartphones */
    }
}