/* Responsive Design for S21RMR Website */

/* Mobile First Approach */
@media (max-width: 768px) {
    /* Navigation */
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(30, 60, 114, 0.95);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        backdrop-filter: blur(10px);
        padding: 20px 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 10px 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    /* Hero Section */
    .hero-container {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-content h2 {
        font-size: 1.6rem;
    }

    .hero-actions {
        justify-content: center;
    }

    /* Search Section */
    .search-input-group {
        flex-direction: column;
        border-radius: 15px;
    }

    .search-input-group input {
        border-radius: 15px 15px 0 0;
    }

    .search-btn {
        border-radius: 0 0 15px 15px;
    }

    .result-content {
        flex-direction: column;
        text-align: center;
    }

    /* Features Grid */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    /* Forms */
    .form-row {
        grid-template-columns: 1fr;
    }

    .contact-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    /* Page Header */
    .page-header h1 {
        font-size: 2rem;
    }

    /* Container Padding */
    .container {
        padding: 0 15px;
    }

    /* Button Adjustments */
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }
}

/* Tablet Styles */
@media (min-width: 769px) and (max-width: 1024px) {
    .hero-container {
        gap: 40px;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

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

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

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

/* Large Tablet and Small Desktop */
@media (min-width: 1025px) and (max-width: 1200px) {
    .container {
        max-width: 1000px;
    }

    .hero-content h1 {
        font-size: 2.8rem;
    }
}

/* Extra Large Screens */
@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }

    .hero-content h1 {
        font-size: 3.5rem;
    }

    .hero-content h2 {
        font-size: 2.2rem;
    }
}

/* Print Styles */
@media print {
    .main-header,
    .main-footer,
    .hamburger,
    .btn,
    .search-section {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .hero {
        background: white;
        color: black;
        padding: 20px 0;
    }

    .main-content {
        padding: 0;
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo,
    .hero-img,
    .callsign-photo {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #1a1a1a;
        --text-color: #e0e0e0;
        --card-bg: #2d2d2d;
        --border-color: #404040;
    }

    body {
        background-color: var(--bg-color);
        color: var(--text-color);
    }

    .card,
    .contact-info,
    .contact-form-section,
    .form-container {
        background-color: var(--card-bg);
        border: 1px solid var(--border-color);
    }

    .form-group input,
    .form-group textarea {
        background-color: var(--card-bg);
        border-color: var(--border-color);
        color: var(--text-color);
    }
}

/* Accessibility Improvements */
@media (prefers-contrast: high) {
    .btn-primary {
        background: #000;
        border: 2px solid #fff;
    }

    .btn-secondary {
        background: #fff;
        color: #000;
        border: 2px solid #000;
    }
}

/* Focus Styles for Better Accessibility */
.btn:focus,
.form-group input:focus,
.form-group textarea:focus,
.nav-menu a:focus {
    outline: 3px solid #ffd700;
    outline-offset: 2px;
}

/* Skip to Content Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #000;
    color: #fff;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 10000;
}

.skip-link:focus {
    top: 6px;
}

/* Loading States */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 20px;
    color: #666;
}

.loading::before {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid #e1e8ed;
    border-top: 2px solid #2a5298;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Image Optimization */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Form Validation States */
.form-group input:invalid {
    border-color: #e74c3c;
}

.form-group input:valid {
    border-color: #27ae60;
}

/* Hover States for Touch Devices */
@media (hover: none) and (pointer: coarse) {
    .btn:hover,
    .nav-menu a:hover,
    .feature-card:hover,
    .news-card:hover {
        transform: none;
    }
}