/* RESPONSIVE DESIGN */

@media (max-width: 900px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .section {
        padding: var(--spacing-lg) 0;
    }

    .hero-grid,
    .grid-2 {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: var(--bg-soft);
        flex-direction: column;
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--border-soft);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    }

    body.dark .nav {
        background: var(--bg-main);
    }

    .nav a {
        margin: 12px 0;
    }

    .menu-toggle {
        display: block;
        font-size: 1.6rem;
        cursor: pointer;
    }

    h1 {
        font-size: clamp(2rem, 6vw, 3rem);
    }

    h2 {
        font-size: clamp(1.5rem, 4vw, 2rem);
    }
}

@media (min-width: 901px) {
    .menu-toggle {
        display: none;
    }
}

@media (max-width: 500px) {
    body {
        font-size: 16px;
    }

    .container {
        padding: 0 var(--spacing-xs);
    }

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

    /* Mobile portfolio card improvements */
    .project-card-new {
        padding: 16px;
    }

    .project-image img {
        height: 150px;
    }

    .detail-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .btn-project {
        width: 100%;
    }

    /* Mobile filters */
    .portfolio-filters {
        flex-wrap: wrap;
        gap: 8px;
    }

    .filter {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    /* Mobile about section */
    .company-logo-box {
        padding: var(--spacing-sm);
    }

    .company-logo {
        max-width: 150px;
    }

    /* Mobile contact */
    .contact-link {
        font-size: 0.9rem;
    }

    /* Mobile hero */
    .hero h1 {
        font-size: 1.8rem;
    }

    .txt-rotate {
        margin-left: 8px;
    }

    /* Nav open state */
    .nav.open {
        display: flex;
    }

    /* Logo on mobile */
    .logo-img {
        height: 28px;
    }

    /* Code background - lighter on mobile */
    #codeCanvas {
        opacity: 0.5;
    }
}