/* ===== Portfolio Hero (short, centered) ===== */
.portfolio-hero {
    position: relative;
    display: flex;
    align-items: center;
    padding: 180px 20px 200px;
    background-color: #032550;
    background-image: linear-gradient(180deg, rgba(3,37,80,0.8) 0%, rgba(3,37,80,0.85) 100%),
                      url('../assets/images/Portfolio-Hero.jpg');
    background-size: cover;
    background-position: center;
    text-align: center;
}
.portfolio-hero .container {
    position: relative;
    z-index: 1;
}
.portfolio-hero-content {
    max-width: 750px;
    margin: 0 auto;
}
.portfolio-hero-content h1 {
    color: var(--color-white);
    font-size: clamp(2rem, 4.5vw, 2.5rem);
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}
.portfolio-hero-wave-bottom {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    line-height: 0;
    z-index: 1;
}
.portfolio-hero-wave-bottom svg {
    display: block;
    width: 100%;
    height: 90px;
}

/* ===== Portfolio Filter + Grid Section ===== */
.portfolio-page-section {
    padding: 50px 0 80px;
    background: var(--color-white);
}
.portfolio-page-section .container {
    width: 90%;
    max-width: 1200px;
}

/* Filter Tabs */
.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 50px;
}
.filter-btn {
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    padding: 9px 20px;
    border: 1.5px solid var(--color-gray-200);
    border-radius: 50px;
    background: var(--color-white);
    color: var(--color-gray-600);
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.3px;
}
.filter-btn:hover {
    color: var(--color-teal);
    border-color: var(--color-teal);
    background: rgba(48, 132, 171, 0.05);
}
.filter-btn.active {
    color: var(--color-white);
    background: var(--color-navy);
    border-color: var(--color-navy);
}

/* Portfolio Grid (page version — 3 columns) */
.portfolio-page-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px 20px;
    margin: 0 auto;
}

/* Portfolio Cards */
a.portfolio-card {
    text-decoration: none;
    color: inherit;
    display: block;
}
.portfolio-card {
    background: #FFFFFF;
    border-radius: 10px;
    overflow: hidden;
    transition: transform 300ms ease;
    cursor: pointer;
    text-align: center;
}
.portfolio-card:hover {
    transform: scale(1.03);
    z-index: 10;
}
.portfolio-card.hidden {
    display: none;
}

/* Thumbnail area */
.portfolio-thumb {
    position: relative;
    overflow: hidden;
    border-radius: 10px 10px 0 0;
    border-bottom: 5px solid var(--color-teal);
    transition: border-color 300ms ease;
}
.portfolio-card:hover .portfolio-thumb {
    border-bottom-color: var(--color-gold);
}
.portfolio-thumb img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    display: block;
}

/* Play button overlay */
.portfolio-play {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    transition: background 0.3s ease;
}
.portfolio-play span {
    color: #FFFFFF;
    font-size: 3rem;
    opacity: 0.8;
    text-shadow: 0 2px 8px rgba(0,0,0,0.4);
    transition: opacity 0.3s ease;
}
.portfolio-card:hover .portfolio-play {
    background: rgba(0,0,0,0.4);
}
.portfolio-card:hover .portfolio-play span {
    opacity: 1;
}

/* Info area below image */
.portfolio-info {
    padding: 24px 16px 32px;
}
.portfolio-tag {
    display: block;
    color: var(--color-gold);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}
.portfolio-info h4 {
    color: var(--color-navy);
    font-size: 20px;
    font-weight: 700;
    max-width: 90%;
    margin: 0 auto;
    line-height: 1.3;
    transition: color 300ms ease;
}
.portfolio-card:hover .portfolio-info h4 {
    color: var(--color-gold);
}

/* ===== Portfolio CTA (contained gradient box) ===== */
.portfolio-cta-section {
    padding: 40px 0 80px;
    background: var(--color-white);
}
.portfolio-cta-box {
    background: linear-gradient(150deg, rgba(0,116,170,0.9) 25%, rgba(173,209,65,0.9) 115%);
    border-radius: 16px;
    padding: 60px 40px;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}
.portfolio-cta-box p {
    color: var(--color-white);
    font-size: clamp(1.5rem, 3.5vw, 2.375rem);
    font-weight: 600;
    margin-bottom: 30px;
    line-height: 1.4;
}
.portfolio-cta-box p em {
    font-style: italic;
    font-weight: 400;
}
.portfolio-cta-box p strong {
    font-family: var(--font-heading);
    font-weight: 700;
}

/* Footer override for portfolio page (wave + position) */
.footer {
    position: relative;
    padding-top: 120px;
    margin-top: -1px;
}
.footer-wave-top {
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    line-height: 0;
    z-index: 1;
}
.footer-wave-top svg {
    display: block;
    width: 100%;
    height: 90px;
}

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

@media (max-width: 768px) {
    .portfolio-hero {
        padding: 100px 20px 120px;
    }
    .portfolio-filters {
        gap: 8px;
    }
    .filter-btn {
        font-size: 12px;
        padding: 8px 16px;
    }
    .portfolio-page-grid {
        grid-template-columns: 1fr;
    }
}