/* ==========================================================================
   portfolio.css - portfolio.php(포트폴리오 페이지) 전용 스타일
   ========================================================================== */

.pf-hero {
    max-width: 720px;
    margin: 0 auto;
    padding: calc(var(--header-height) + 56px) 28px 40px;
    text-align: center;
}

.pf-eyebrow {
    font-size: 13px;
    font-weight: 800;
    color: #FFB800;
    letter-spacing: 2px;
    margin-bottom: 14px;
}

.pf-title {
    font-size: clamp(28px, 6vw, 42px);
    font-weight: 900;
    color: #1a1a1a;
    line-height: 1.3;
    margin-bottom: 14px;
}

.pf-sub {
    font-size: 15px;
    line-height: 1.7;
    color: #6b6b6b;
    margin-bottom: 32px;
}

.pf-tabs {
    display: inline-flex;
    gap: 8px;
    padding: 6px;
    background: #f2f1ee;
    border-radius: 999px;
}

.pf-tab {
    padding: 10px 22px;
    font-size: 14px;
    font-weight: 800;
    color: #8a8a8a;
    border-radius: 999px;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.pf-tab.is-active {
    background: #1a1a1a;
    color: #ffffff;
}

.pf-grid {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 28px 100px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

@media (min-width: 900px) {
    .pf-grid {
        padding: 0 64px 120px;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
    }
}

@media (min-width: 1400px) {
    .pf-grid {
        padding: 0 80px 140px;
        grid-template-columns: repeat(4, 1fr);
    }
}

.pf-card {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.pf-card.is-visible {
    opacity: 1;
    transform: translateY(0);
}

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

.pf-card-thumb {
    position: relative;
    aspect-ratio: 4 / 5;
    border-radius: 6px;
    overflow: hidden;
    background: linear-gradient(160deg, #1e1e1e, #3c3c3c);
}

.pf-card-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 1px;
    color: #0b0b0b;
    background: #FFB800;
    border-radius: 999px;
}

.pf-card-body {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px 2px 0;
}

.pf-card-index {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 1px;
    color: #b0b0b0;
}

.pf-card-name {
    font-size: 15px;
    font-weight: 800;
    color: #1a1a1a;
}