@media screen and (max-width: 1200px) {
    .sidebar {
        width: 248px;
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .main-content {
        margin-left: 248px;
    }

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

    .hero-title {
        font-size: clamp(2rem, 4.5vw, 3.3rem);
    }

    .contact-grid {
        grid-template-columns: repeat(2, minmax(240px, 1fr));
    }
}

@media screen and (max-width: 900px) {
    .section {
        min-height: auto;
    }

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

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

@media screen and (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .sidebar {
        width: 280px;
        transform: translateX(-100%);
        transition: transform var(--duration) var(--ease);
        box-shadow: var(--shadow-lift);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .section {
        padding: calc(var(--spacing-xl) + 0.8rem) var(--spacing-md) var(--spacing-xl);
    }

    .hero-title {
        font-size: clamp(1.95rem, 9.5vw, 2.6rem);
    }

    .hero-description {
        font-size: 1.02rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: flex-start;
    }

    .btn {
        min-width: 0;
        width: 100%;
    }

    .timeline {
        padding-left: 0.9rem;
    }

    .timeline-item {
        padding-left: var(--spacing-lg);
    }

    .skills-flow,
    .project-content,
    .note-card,
    .contact-card,
    .experience-card {
        padding: var(--spacing-md);
    }

    .project-image {
        height: 190px;
    }
}

@media screen and (max-width: 480px) {
    :root {
        --spacing-xs: 0.4rem;
        --spacing-sm: 0.8rem;
        --spacing-md: 1.1rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 1.9rem;
    }

    .sidebar {
        width: 100%;
    }

    .name {
        font-size: 1.45rem;
    }

    .section-kicker {
        letter-spacing: 0.16em;
    }

    .section-title {
        font-size: 1.85rem;
    }

    .hero-eyebrow {
        letter-spacing: 0.14em;
    }

    .hero-metrics {
        font-size: 0.95rem;
    }

    .project-image {
        height: 168px;
    }

    .note-header {
        flex-direction: column;
        gap: 0.35rem;
    }
}

@media screen and (min-width: 1600px) {
    .section {
        max-width: 1480px;
        margin: 0 auto;
    }
}

@media print {
    .sidebar,
    .menu-toggle,
    .hero-background {
        display: none;
    }

    .main-content {
        margin-left: 0;
    }

    .section {
        min-height: auto;
        page-break-inside: avoid;
    }

    body {
        background: white;
        color: black;
    }
}