/**
 * Portfolio page styles.
 * Reuses shared tokens and hero background from main.css.
 */

.portfolio-hero {
    position: relative;
    z-index: 1;
    min-height: 72vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 5rem;
    padding-bottom: 3rem;
}

.portfolio-hero-title {
    font-size: clamp(2.75rem, 7vw, 5.5rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--color-primary);
    margin: 0 0 1rem;
}

.portfolio-hero-title em {
    font-style: italic;
    font-weight: 400;
    color: var(--color-accent);
}

.portfolio-hero-desc {
    margin: 0;
    max-width: 65ch;
    font-size: 1.0625rem;
    color: var(--color-primary);
}

.portfolio-filters {
    position: relative;
    padding-top: 1.25rem;
    padding-bottom: 3rem;
    overflow: hidden;
}

.portfolio-filters-nav {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.8rem;
    max-width: 1400px;
    margin: 0 auto;
}

.portfolio-filter {
    color: rgba(255, 255, 255, 0.35);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 400;
    transition: color 0.2s ease;
}

.portfolio-filter:hover {
    color: var(--color-primary);
}

.portfolio-filter.is-active {
    color: var(--color-primary);
}

.portfolio-search-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--color-accent);
    font-size: 1.45rem;
    line-height: 1;
    padding: 0;
    cursor: pointer;
}

.portfolio-search-form {
    width: 0;
    opacity: 0;
    overflow: hidden;
    transition: width 0.25s ease, opacity 0.2s ease;
}

.portfolio-search-form.is-open {
    width: min(18rem, 42vw);
    opacity: 1;
}

.portfolio-search-input {
    width: 100%;
    min-height: 2rem;
    border: 1px solid var(--color-accent);
    border-radius: 0.345rem;
    background: transparent;
    color: var(--color-primary);
    padding: 0.28rem 0.6rem;
    outline: none;
}

.portfolio-search-input::placeholder {
    color: rgba(255, 255, 255, 0.55);
}

.portfolio-skeleton {
    background: var(--color-background);
    padding-top: 1rem;
}

.portfolio-skeleton-grid {
    max-width: 1500px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
}

.portfolio-skeleton-card {
    min-height: 30rem;
    border-radius: 0.5rem;
    border: none;
    background: rgba(255, 255, 255, 0.02);
    display: block;
    text-decoration: none;
}

.portfolio-skeleton-card--full {
    grid-column: 1 / -1;
    min-height: 30rem;
}

.portfolio-footer-cta {
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.portfolio-footer-cta::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 80vmin;
    height: 80vmin;
    background: radial-gradient(circle at 100% 0%, var(--color-accent) 0%, transparent 60%);
    opacity: 0.12;
    pointer-events: none;
}

.portfolio-footer-cta-heading {
    position: relative;
    z-index: 1;
    font-size: clamp(2.5rem, 4.8vw, 5rem);
    line-height: 1.05;
    margin-bottom: 1rem;
}

.portfolio-footer-cta-heading em {
    color: var(--color-accent);
    font-style: italic;
    font-weight: 400;
}

.portfolio-footer-cta-desc {
    position: relative;
    z-index: 1;
    max-width: 56ch;
    font-size: 1.5rem;
    line-height: 1.35;
    margin-bottom: 1.75rem;
}

.portfolio-footer-cta-buttons {
    position: relative;
    z-index: 1;
}

.portfolio-footer-cta-btn {
    padding: 0.95rem 1.45rem;
    font-size: 0.8rem;
    letter-spacing: 0.03em;
    border-color: rgba(255, 255, 255, 0.45);
}

@media (max-width: 900px) {
    .portfolio-hero {
        min-height: 64vh;
    }

    .portfolio-filters-nav {
        gap: 1.1rem;
    }

    .portfolio-search-form.is-open {
        width: min(100%, 16rem);
    }

    .portfolio-skeleton-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-skeleton-card--full {
        grid-column: auto;
        min-height: 22rem;
    }

    .portfolio-footer-cta-desc {
        font-size: 1.1rem;
    }
}