/* Responsive Design - Media Queries */

/* ====== Mobile First Approach (320px - 767px) ====== */

@media (max-width: 480px) {
    /* General */
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 16px;
    }
    
    /* Typography */
    h1 {
        font-size: 24px;
    }
    
    h2 {
        font-size: 20px;
    }
    
    h3 {
        font-size: 16px;
    }
    
    /* Buttons */
    .btn {
        padding: 10px 16px;
        font-size: 14px;
    }
    
    /* Header */
    .header-container {
        padding: 8px 12px;
    }
    
    .logo {
        height: 32px;
    }
    
    .icon-btn {
        font-size: 18px;
        padding: 6px;
    }
    
    /* Sections */
    section {
        padding: 32px 0;
    }
    
    /* Grid Layouts */
    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    /* Forms */
    input,
    textarea,
    select {
        font-size: 16px;
        padding: 10px;
    }
    
    /* Cards */
    .card {
        padding: 12px;
    }
    
    /* Topics Grid */
    .topics-grid {
        gap: 16px;
    }
    
    .article-card {
        margin-bottom: 16px;
    }
    
    .article-image {
        height: 180px;
    }
    
    /* CTA Sections */
    .newsletter-app-grid {
        gap: 24px;
    }
    
    .newsletter-block,
    .app-block {
        padding: 20px 16px;
    }
    
    .cta-grid {
        gap: 16px;
    }
    
    .cta-block {
        padding: 20px 16px;
    }
    
    /* Footer */
    .footer {
        padding: 40px 0 16px;
    }
    
    .footer-grid {
        gap: 24px;
    }
    
    .footer-column {
        text-align: center;
    }
    
    .footer-logo img {
        height: 40px;
    }
    
    .social-links {
        justify-content: center;
    }
}

/* ====== Small Devices (481px - 767px) ====== */

@media (min-width: 481px) and (max-width: 767px) {
    .container {
        padding: 0 20px;
    }
    
    .header-container {
        padding: 10px 16px;
    }
    
    .logo {
        height: 36px;
    }
    
    section {
        padding: 40px 0;
    }
    
    .topics-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .article-image {
        height: 220px;
    }
    
    .newsletter-app-grid {
        gap: 32px;
    }
    
    .newsletter-block,
    .app-block {
        padding: 30px 20px;
    }
    
    .cta-grid {
        gap: 24px;
    }
    
    .cta-block {
        padding: 30px 20px;
    }
    
    .footer-grid {
        gap: 32px;
    }
}

/* ====== Tablet (768px - 1023px) ====== */

@media (min-width: 768px) {
    .container {
        padding: 0 24px;
    }
    
    .header-container {
        padding: 12px 24px;
    }
    
    .logo {
        height: 40px;
    }
    
    section {
        padding: 48px 0;
    }
    
    .topics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    
    .article-image {
        height: 250px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .newsletter-app-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    
    .newsletter-block,
    .app-block {
        padding: 35px 24px;
    }
    
    .cta-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cta-block {
        padding: 35px 24px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    
    .hero {
        min-height: 600px;
        padding: 64px 24px;
    }
}

/* ====== Desktop (1024px+) ====== */

@media (min-width: 1024px) {
    .container {
        padding: 0 32px;
    }
    
    .header-container {
        padding: 16px 32px;
    }
    
    .logo {
        height: 80px;
    	margin-top: 30px;
    }
    
    section {
        padding: 64px 0;
    }
    
    .topics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    
    .article-image {
        height: 280px;
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .newsletter-app-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 64px;
    }
    
    .newsletter-block,
    .app-block {
        padding: 20px 24px;
    }
    
    .cta-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cta-block {
        padding: 40px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .hero {
        min-height: 600px;
        padding: 64px 32px;
    }
}

/* ====== Large Desktop (1200px+) ====== */

@media (min-width: 1200px) {
    .container {
        max-width: 1200px;
        padding: 0 40px;
    }
    
    section {
        padding: 80px 0;
    }
}

/* ====== Extra Large Desktop (1400px+) ====== */

@media (min-width: 1400px) {
    .container {
        max-width: 1200px;
        padding: 0 50px;
    }
}

/* ====== Landscape Orientation (Mobile) ====== */

@media (orientation: landscape) and (max-height: 600px) {
    .hero {
        min-height: auto;
        padding: 40px 24px;
    }
    
    .hero-title {
        font-size: 32px;
        margin-bottom: 8px;
    }
    
    .hero-subtitle {
        font-size: 20px;
        margin-bottom: 12px;
    }
    
    .hero-cta {
        gap: 12px;
    }
    
    .hero-cta .btn {
        min-width: auto;
        padding: 8px 16px;
        font-size: 14px;
    }
}

/* ====== Print Media ====== */

@media print {
    .header,
    .nav-menu,
    .nav-overlay,
    .footer {
        display: none;
    }
    
    body {
        background-color: white;
        color: black;
    }
    
    a {
        text-decoration: underline;
    }
    
    .btn {
        border: 1px solid black;
        color: black;
        background-color: white;
    }
}

/* ====== Accessibility - Reduced Motion ====== */

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

/* ====== Accessibility - High Contrast ====== */

@media (prefers-contrast: more) {
    :root {
        --primary-dark: #000;
        --gray: #333;
        --light: #ccc;
    }
    
    .btn {
        border-width: 2px;
    }
    
    a {
        text-decoration: underline;
    }
}

/* ====== Accessibility - Light Mode Only ====== */

@media (prefers-color-scheme: light) {
    body {
        background-color: var(--white);
        color: var(--dark-gray);
    }
}

/* ====== Scrollbar Styling (Webkit browsers) ====== */

@supports selector(::-webkit-scrollbar) {
    ::-webkit-scrollbar {
        width: 8px;
    }
    
    ::-webkit-scrollbar-track {
        background: #f1f1f1;
    }
    
    ::-webkit-scrollbar-thumb {
        background: var(--gray);
        border-radius: 4px;
    }
    
    ::-webkit-scrollbar-thumb:hover {
        background: var(--primary-dark);
    }
}

/* ====== Touch Device Adjustments ====== */

@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 48px;
        min-width: 48px;
    }
    
    .icon-btn {
        min-width: 44px;
        min-height: 44px;
    }
    
    a {
        padding: 4px;
    }
}

/* ====== Container Queries (if supported) ====== */

@supports (container-type: inline-size) {
    .article-card {
        container-type: inline-size;
    }
    
    @container (min-width: 400px) {
        .article-content {
            padding: 20px;
			padding-top: 0px;
        }
    }
}