/* ===== Portfolio Hero ===== */
.portfolio-hero {
    padding: 160px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.portfolio-hero::before {
    content: '';
    position: absolute;
    top: -40%;
    left: 50%;
    transform: translateX(-50%);
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(200, 255, 0, 0.05) 0%, transparent 65%);
    pointer-events: none;
}

.portfolio-hero__label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.portfolio-hero__title {
    font-family: var(--font-display);
    font-size: clamp(48px, 10vw, 100px);
    font-weight: 900;
    letter-spacing: -2px;
    line-height: 1;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff 0%, #777777 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.portfolio-hero__desc {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 480px;
    margin: 0 auto;
    line-height: 1.6;
}

.portfolio-section {
    padding: 0 0 120px;
}

/* ===== Portfolio Grid ===== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

/* ===== Project Card ===== */
.pf-card {
    display: block;
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--bg-card);
    transition: border-color 0.4s ease, transform 0.4s ease, box-shadow 0.4s ease, opacity 0.4s ease;
}

.pf-card.hidden {
    display: none;
}

.pf-card:hover {
    border-color: rgba(200, 255, 0, 0.2);
    transform: translateY(-6px);
    box-shadow:
        0 24px 64px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(200, 255, 0, 0.06);
}

/* Visual area */
.pf-card__visual {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(200, 255, 0, 0.03) 0%, transparent 60%),
        var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px;
}

.pf-card__visual img {
    max-height: 100%;
    max-width: 80%;
    object-fit: contain;
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1), filter 0.5s ease;
    filter: brightness(0.95);
}

.pf-card:hover .pf-card__visual img {
    transform: scale(1.06);
    filter: brightness(1.05);
}

/* Placeholder for projects without images */
.pf-card__placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(200, 255, 0, 0.04) 0%, rgba(200, 255, 0, 0.01) 100%);
    border-radius: 8px;
}

.pf-card__placeholder span {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.06);
    letter-spacing: 4px;
    transition: color 0.4s ease;
}

.pf-card:hover .pf-card__placeholder span {
    color: rgba(200, 255, 0, 0.12);
}

.pf-card__placeholder--accent {
    background: linear-gradient(135deg, rgba(153, 69, 255, 0.06) 0%, rgba(200, 255, 0, 0.03) 100%);
}

/* Number watermark */
.pf-card__number {
    position: absolute;
    top: 14px;
    right: 18px;
    font-family: var(--font-display);
    font-size: 56px;
    font-weight: 900;
    line-height: 1;
    color: rgba(255, 255, 255, 0.03);
    pointer-events: none;
    transition: color 0.5s ease;
}

.pf-card:hover .pf-card__number {
    color: rgba(200, 255, 0, 0.06);
}

/* Card body */
.pf-card__body {
    padding: 24px 28px;
    position: relative;
}

.pf-card__body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 28px;
    right: 28px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-light), transparent);
}

.pf-card__tag {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(200, 255, 0, 0.08);
    border: 1px solid rgba(200, 255, 0, 0.15);
    border-radius: var(--radius-full);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--accent);
    margin-bottom: 12px;
}

.pf-card__title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.pf-card__desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 16px;
}

.pf-card__link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: color 0.3s ease, gap 0.3s ease;
}

.pf-card:hover .pf-card__link {
    color: var(--accent);
    gap: 9px;
}

.pf-card__link svg {
    transition: transform 0.3s ease;
}

.pf-card:hover .pf-card__link svg {
    transform: translate(2px, -2px);
}

/* ===== Project count ===== */
.portfolio-grid::after {
    content: '14 Projects';
    display: none;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-hero {
        padding: 140px 0 60px;
    }
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-hero {
        padding: 120px 0 48px;
    }

    .portfolio-hero__title {
        letter-spacing: -1px;
    }

    .pf-card__visual {
        height: 200px;
    }
}

@media (max-width: 480px) {
    .pf-card__visual {
        height: 180px;
        padding: 24px;
    }

    .pf-card__body {
        padding: 20px 22px;
    }
}