/* ============================================
   Responsive Styles
   ============================================ */

/* Tablet Styles (max-width: 921px) */
@media (max-width: 921px) {
    :root {
        --container-padding: 2em;
        --font-size-h1: 30px;
        --font-size-h2: 25px;
        --font-size-h3: 20px;
    }
    
    html {
        font-size: 85.5%;
    }
    
    /* Header */
    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--color-black);
        max-height: 0;
        overflow: hidden;
        transition: var(--transition-normal);
    }
    
    .main-nav.active {
        max-height: 500px;
        overflow-y: auto;
    }
    
    .nav-menu {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: var(--spacing-sm) 0;
    }
    
    .nav-item {
        width: 100%;
    }
    
    .nav-link {
        padding: 1rem var(--container-padding);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .has-dropdown .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        border-top: none;
        background-color: rgba(255, 255, 255, 0.05);
        margin-left: var(--spacing-md);
        max-height: 0;
        overflow: hidden;
        transition: var(--transition-normal);
    }
    
    .has-dropdown.active .dropdown-menu {
        max-height: 300px;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .header-right {
        gap: var(--spacing-sm);
    }
    
    .social-icons {
        display: none;
    }
    
    /* Hero */
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle,
    .hero-cta {
        font-size: 1.1rem;
    }
    
    /* Contact */
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .contact-info .section-title,
    .contact-form-wrapper .section-title {
        text-align: center;
    }
    
    .social-icons-large {
        justify-content: center;
    }
}

/* Mobile Styles (max-width: 544px) */
@media (max-width: 544px) {
    :root {
        --container-padding: 1.5em;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }
    
    /* Header */
    .logo-text {
        display: none;
    }
    
    .language-switcher {
        display: none !important;
    }
    
    /* Crypto Ticker */
    .ticker-container {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .ticker-label {
        font-size: 12px;
    }
    
    .ticker-content {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    /* Hero */
    .hero-content {
        padding: var(--spacing-lg) var(--container-padding);
    }
    
    .hero-logo img {
        width: 100px;
        height: 100px;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-subtitle,
    .hero-cta {
        font-size: 1rem;
    }
    
    /* Sections */
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .section-title {
        font-size: var(--font-size-h3);
    }
    
    /* Team Grid */
    .team-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    /* Activities Grid */
    .activities-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    /* Contact */
    .contact-item {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .contact-item i {
        margin-top: 0;
    }
    
    .social-icons-large {
        flex-wrap: wrap;
    }
    
    /* Form */
    .form-group input,
    .form-group textarea {
        padding: 12px;
    }
    
    .submit-btn {
        width: 100%;
        padding: 12px 24px;
    }
    
    /* Footer */
    .footer-content p {
        font-size: 0.8rem;
    }
    
    /* Scroll to Top */
    .scroll-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
    }
}

/* Large Desktop (min-width: 1920px) */
@media (min-width: 1920px) {
    .container {
        padding: 0 4em;
    }
}

/* Print Styles */
@media print {
    .main-header,
    .crypto-ticker,
    .mobile-menu-toggle,
    .scroll-to-top,
    .contact-form {
        display: none;
    }
    
    body {
        color: var(--color-black);
    }
    
    .section {
        page-break-inside: avoid;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --color-border: #000000;
    }
    
    .card,
    .activity-card,
    .team-card {
        border: 2px solid var(--color-black);
    }
}

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