/***** Portfolio *****/

.portfolio {
    width: min(1120px, 92%);
    margin: 0 auto 2.5rem;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.1rem;
}

.portfolio-card {
    position: relative;
    width: 100%;
    padding: 0;
    appearance: none;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: rgba(49, 51, 56, 0.78);
    box-shadow: var(--shadow);
    overflow: hidden;
    cursor: pointer;
    text-align: left;
}

.portfolio-card:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.portfolio-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
    transition: transform 0.35s ease;
}

.portfolio-card:hover img {
    transform: scale(1.05);
}

.portfolio-content {
    padding: 1rem;
}

.portfolio-content h3 {
    margin: 0 0 0.55rem;
    color: var(--text);
    font-family: "HelveticaNeuBold", sans-serif;
    font-size: 1.03rem;
}

.portfolio-content p {
    margin: 0;
    color: var(--muted);
    line-height: 1.55;
    font-size: 0.93rem;
}

/***** Overlay & Modal *****/

.portfolio-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
    background: rgba(7, 8, 10, 0.72);
    backdrop-filter: blur(6px);
    animation: portfolioOverlayFadeIn 0.25s ease;
}

.portfolio-modal {
    width: min(920px, 100%);
    max-height: min(92vh, 780px);
    overflow-y: auto;
    border-radius: 24px;
    border: 1px solid var(--border);
    background: linear-gradient(
        145deg,
        rgba(31, 33, 38, 0.98),
        rgba(44, 47, 54, 0.98)
    );
    box-shadow: 0 28px 85px rgba(0, 0, 0, 0.5);
    animation: portfolioModalLift 0.28s ease;
}

.portfolio-modal-header {
    position: sticky;
    top: 0;
    z-index: 1;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1rem 0.9rem;
    background: linear-gradient(
        180deg,
        rgba(31, 33, 38, 0.98),
        rgba(31, 33, 38, 0.85)
    );
    backdrop-filter: blur(2px);
}

.portfolio-modal-header h3 {
    margin: 0;
    color: var(--text);
    font-family: "HelveticaNeuBold", sans-serif;
    font-size: clamp(1.1rem, 0.9rem + 0.7vw, 1.5rem);
    line-height: 1.3;
}

.portfolio-close {
    border: 1px solid rgba(148, 163, 184, 0.35);
    background: rgba(30, 31, 34, 0.78);
    color: var(--text);
    width: 2.35rem;
    height: 2.35rem;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    line-height: 1;
    flex-shrink: 0;
    transition:
        background 0.2s ease,
        transform 0.2s ease,
        border-color 0.2s ease;
}

.portfolio-close:hover {
    background: rgba(88, 101, 242, 0.3);
    border-color: rgba(121, 131, 245, 0.6);
    transform: scale(1.05);
}

.portfolio-close:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.portfolio-modal img {
    width: calc(100% - 2rem);
    margin: 0 1rem;
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    max-height: 430px;
    object-fit: cover;
}

.portfolio-body {
    padding: 1rem 1rem 1.1rem;
}

.portfolio-body p {
    margin: 0 0 1rem;
    color: var(--muted);
    line-height: 1.65;
}

.portfolio-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.portfolio-tech span {
    border: 1px solid rgba(88, 101, 242, 0.3);
    background: linear-gradient(
        135deg,
        rgba(88, 101, 242, 0.24),
        rgba(121, 131, 245, 0.24)
    );
    color: var(--text);
    border-radius: 999px;
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
    text-transform: uppercase;
}

@keyframes portfolioOverlayFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes portfolioModalLift {
    from {
        opacity: 0;
        transform: translateY(12px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/***** Responsive *****/

@media screen and (max-width: 990px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-card img {
        height: 250px;
    }

    .portfolio-overlay {
        padding: 0.75rem;
    }

    .portfolio-modal {
        max-height: 94vh;
        border-radius: 18px;
    }

    .portfolio-modal img {
        width: calc(100% - 1rem);
        margin: 0 0.5rem;
        max-height: 300px;
    }

    .portfolio-modal-header {
        padding: 0.75rem 0.75rem 0.7rem;
    }

    .portfolio-body {
        padding: 0.85rem 0.75rem 0.95rem;
    }
}