/* Responsive Design */

/* 2500px - 4500px */
@media (min-width: 2500px) {
    .container {
        max-width: 2200px;
    }
    
    .hero-title {
        font-size: 5rem;
    }
    
    .section-title {
        font-size: 4rem;
    }
    
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    }
    
    .tool-card {
        padding: 3rem;
    }
    
    .tool-icon {
        width: 100px;
        height: 100px;
    }
    
    .tool-icon i {
        font-size: 2.5rem;
    }
}

/* 1500px - 2500px */
@media (min-width: 1500px) and (max-width: 2499px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: 4rem;
    }
    
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

/* 1000px - 1500px */
@media (min-width: 1000px) and (max-width: 1499px) {
    .container {
        max-width: 1000px;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-image {
        width: 45%;
    }
    
    .main-pdf-icon {
        font-size: 8rem;
    }
    
    .footer-content {
        grid-template-columns: 2fr 1fr 1fr;
    }
    
    .footer-section:last-child {
        grid-column: 1 / -1;
        margin-top: 2rem;
    }
}

/* 720px - 1000px */
@media (min-width: 720px) and (max-width: 999px) {
    .container {
        max-width: 720px;
    }
    
    .hero {
        padding: 120px 0 80px;
    }
    
    .hero-content {
        max-width: 100%;
        text-align: center;
        margin-bottom: 3rem;
    }
    
    .hero-image {
        position: relative;
        width: 100%;
        transform: none;
        height: 300px;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .floating-card {
        display: none;
    }
}

/* 450px - 720px */
@media (min-width: 450px) and (max-width: 719px) {
    .container {
        padding: 0 15px;
    }
    
    .navbar {
        padding: 0.8rem 0;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 80%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        align-items: center;
        padding-top: 2rem;
        transition: var(--transition);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        margin: 1rem 0;
        font-size: 1.2rem;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active .bar:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .bar:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-content {
        text-align: center;
        margin-bottom: 3rem;
    }
    
    .hero-image {
        position: relative;
        width: 100%;
        transform: none;
        height: 250px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 200px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        justify-content: space-around;
    }
    
    .about-image {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .floating-card {
        display: none;
    }
    
    .main-pdf-icon {
        font-size: 6rem;
    }
}

/* 300px - 450px */
@media (min-width: 300px) and (max-width: 449px) {
    .container {
        padding: 0 10px;
    }
    
    .navbar {
        padding: 0.7rem 0;
    }
    
    .logo {
        font-size: 1.2rem;
    }
    
    .logo i {
        font-size: 1.5rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        right: -100%;
        width: 100%;
        height: calc(100vh - 60px);
        background: white;
        flex-direction: column;
        align-items: center;
        padding-top: 2rem;
        transition: var(--transition);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        margin: 1rem 0;
        font-size: 1.2rem;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero {
        padding: 80px 0 40px;
    }
    
    .hero-content {
        text-align: center;
        margin-bottom: 2rem;
    }
    
    .hero-image {
        position: relative;
        width: 100%;
        transform: none;
        height: 200px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 0.8rem;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 250px;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .features {
        padding: 60px 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .tools {
        padding: 60px 0;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .tool-card {
        padding: 1.5rem;
    }
    
    .category-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 200px;
    }
    
    .upload {
        padding: 60px 0;
    }
    
    .upload-area {
        padding: 2rem 1rem;
    }
    
    .upload-icon {
        font-size: 3rem;
    }
    
    .about {
        padding: 60px 0;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .about-image {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .contact {
        padding: 60px 0;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-icon {
        margin-right: 0;
        margin-bottom: 1rem;
    }
    
    .footer {
        padding: 40px 0 15px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .floating-card {
        display: none;
    }
    
    .main-pdf-icon {
        font-size: 5rem;
    }
}

/* 100px - 300px */
@media (max-width: 299px) {
    .container {
        padding: 0 5px;
    }
    
    .logo span {
        display: none;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-description {
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .feature-card, .tool-card {
        padding: 1rem;
    }
    
    .feature-icon, .tool-icon {
        width: 50px;
        height: 50px;
    }
    
    .feature-icon i, .tool-icon i {
        font-size: 1.3rem;
    }
    
    .upload-area {
        padding: 1.5rem 0.5rem;
    }
    
    .upload-icon {
        font-size: 2.5rem;
    }
    
    .main-pdf-icon {
        font-size: 4rem;
    }
}