/* ==========================================================================
   PORTFOLIO PAGE STYLES
   ========================================================================== */

/* Page Header */
.page-header {
    text-align: center;
    padding: 4rem 0 2rem;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* Portfolio Layout */
.portfolio-section {
    display: 10px;
    flex-direction: column;
    gap: 4rem; /* Spacing between main categories */
}

/* Category Block */
.category-block {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.category-header {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-main);
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

/* Sub-Cards Grid */
.sub-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 1.5rem;
}

/* Sub-Card */
.sub-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 3rem 2rem; /* Large padding for visual-first spacious feel */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: all 0.2s ease;
    cursor: pointer; /* Even if placeholder */
    min-height: 150px;
    text-decoration: none; /* Ensure no underline */
    color: inherit;
}

.sub-card:hover {
    border-color: var(--text-secondary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05); /* Soft shadow */
}

.sub-card-title {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-main);
}

/* Split Layout for Sub-Cards with Film Reel */
.sub-card {
    /* Reset padding from before */
    padding: 0;
    overflow: hidden;
    position: relative;
    /* Fixed height for the reel effect */
    height: 400px;
    display: flex;
    align-items: center;
    background-color: var(--bg-card);
}

.sub-card:hover {
    border-color: var(--text-secondary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.card-title-container {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 65%;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 2rem;
    z-index: 2;
    /* Soft gradient to prevent hard cut and blend nicely with images */
    background: linear-gradient(to right, var(--bg-card) 40%, rgba(26,26,26,0.9) 65%, transparent 100%);
}

[data-theme="light"] .card-title-container {
    background: linear-gradient(to right, var(--bg-card) 40%, rgba(255,255,255,0.9) 65%, transparent 100%);
}

.sub-card-title {
    font-size: 1.75rem;
    font-weight: 500;
    color: var(--text-main);
    text-align: left;
}

/* Film Reel Container */
.card-reel-container {
    position: absolute;
    top: 0;
    bottom: 0;
    right: -5%; /* Let it bleed slightly off the right edge */
    width: 70%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
    /* Mask to fade out top and bottom for smooth appearance */
    -webkit-mask-image: linear-gradient(to bottom, transparent, black 10%, black 90%, transparent);
    mask-image: linear-gradient(to bottom, transparent, black 10%, black 90%, transparent);
}

.reel-wrapper {
    display: flex;
    gap: 1rem;
    position: absolute;
    top: 50%;
    left: 50%;
    /* Tilted look */
    transform: translate(-50%, -50%) rotate(-15deg) scale(1.1);
    height: 200%; /* Extra height to ensure seamless scrolling */
    width: 120%; /* Wider to give columns enough space */
    justify-content: center;
}

.reel-column {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 48%; /* More proportional image width */
}

.reel-column img {
    width: 100%;
    height: 160px; /* Better aspect ratio */
    object-fit: cover;
    border-radius: 6px;
    filter: grayscale(20%);
    transition: filter 0.3s ease;
}

.sub-card:hover .reel-column img {
    filter: grayscale(0%);
}

/* Animations */
@keyframes scrollUp {
    0% { transform: translateY(0); }
    100% { transform: translateY(-50%); } /* Scrolls exactly half since content is duplicated */
}

@keyframes scrollDown {
    0% { transform: translateY(-50%); }
    100% { transform: translateY(0); }
}

.scroll-up {
    animation: scrollUp 20s linear infinite;
}

.scroll-down {
    animation: scrollDown 20s linear infinite;
}

/* Pause animation on hover */
.sub-card:hover .scroll-up,
.sub-card:hover .scroll-down {
    animation-play-state: paused;
}

/* Ensure single column layout for grid on very small screens,
   but maintain the layout inside the card. */
@media (max-width: 600px) {
    .sub-cards-grid {
        grid-template-columns: 1fr; /* Full width on mobile */
    }
    .sub-card {
        height: 350px;
    }
    .card-title-container {
        width: 75%; /* More space for text on mobile */
        padding: 1.5rem;
    }
    .sub-card-title {
        font-size: 1.5rem;
    }
    .card-reel-container {
        width: 80%;
        right: -10%;
    }
    .reel-column img {
        height: 140px;
    }
}