/* ===================================
   PDF Tools Pro - Responsive Styles
   =================================== */

@media (max-width: 1200px) {
    .footer-grid {
        grid-template-columns: 1.5fr repeat(3, 1fr);
        gap: 2rem;
    }

    .mega-menu {
        width: 700px;
    }
}

@media (max-width: 992px) {
    .nav {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .nav.mobile-active {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--surface);
        padding: 1.5rem;
        overflow-y: auto;
        z-index: 999;
        animation: slideDown 0.3s ease;
    }

    .nav.mobile-active .nav-link {
        padding: 0.85rem 1rem;
        font-size: 1rem;
        border-bottom: 1px solid var(--border);
        border-radius: 0;
        width: 100%;
    }

    .nav.mobile-active .nav-item {
        width: 100%;
    }

    .nav.mobile-active .mega-menu {
        position: static;
        transform: none;
        width: 100%;
        box-shadow: none;
        border: none;
        padding: 1rem;
        opacity: 1;
        visibility: visible;
        pointer-events: all;
        display: none;
        max-height: none;
    }

    .nav.mobile-active .nav-item.mega-open .mega-menu {
        display: block;
    }

    .nav.mobile-active .mega-menu-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .header-actions .btn {
        display: none;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

    .hero {
        padding: calc(var(--header-height) + 3rem) 0 3rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 64px;
    }

    .section {
        padding: 3.5rem 0;
    }

    .section-header {
        margin-bottom: 2.5rem;
    }

    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

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

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

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .upload-area {
        padding: 2rem 1.5rem;
    }

    .cta-card {
        padding: 3rem 1.5rem;
    }

    .newsletter-form {
        flex-direction: column;
    }

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

    .related-tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-actions {
        flex-direction: column;
    }

    .stat-number {
        font-size: 2.25rem;
    }

    .mega-menu-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 1rem;
    }

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

    .tool-card {
        display: flex;
        align-items: center;
        text-align: left;
        padding: 1.25rem;
        gap: 1rem;
    }

    .tool-card-icon {
        margin: 0;
        width: 48px;
        height: 48px;
        flex-shrink: 0;
    }

    .related-tools-grid {
        grid-template-columns: 1fr;
    }

    .upload-area {
        padding: 1.5rem 1rem;
    }

    .upload-icon {
        width: 56px;
        height: 56px;
    }

    .upload-icon svg {
        width: 28px;
        height: 28px;
    }

    .faq-question {
        padding: 1rem 1.25rem;
        font-size: 0.9rem;
    }

    .faq-answer-inner {
        padding: 0 1.25rem 1rem;
    }

    .blog-card-image {
        height: 160px;
    }

    .error-page h1 {
        font-size: 5rem;
    }
}

@media (max-width: 375px) {
    html {
        font-size: 14px;
    }

    .btn-lg {
        padding: 0.85rem 1.5rem;
        font-size: 0.95rem;
    }

    .section {
        padding: 2.5rem 0;
    }
}

/* Animations for mobile menu */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Print styles */
@media print {
    .header,
    .footer,
    .back-to-top,
    .upload-area,
    .search-overlay {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
    }

    .hero {
        padding-top: 2rem;
    }
}