/* 
 * China-Studies.com - Responsive Stile
 * Für verschiedene Bildschirmgrößen und Geräte
 */

/* ===== Tablets (landscape) & Desktop (kleine Auflösung) ===== */
@media screen and (max-width: 1200px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .scholar-card {
        flex-direction: column;
    }
    
    .scholar-image {
        margin-right: 0;
        margin-bottom: var(--spacing-md);
    }
    
    .profile-header-content {
        flex-direction: column;
    }
    
    .profile-image {
        margin-right: 0;
        margin-bottom: var(--spacing-lg);
    }
    
    .profile-contact-box {
        margin-left: 0;
        margin-top: var(--spacing-lg);
    }
}

/* ===== Tablets (portrait) ===== */
@media screen and (max-width: 992px) {
    :root {
        --font-size-huge: 2.5rem;
        --font-size-xxl: 1.8rem;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--background-color);
        box-shadow: var(--shadow-md);
        flex-direction: column;
        padding: var(--spacing-md) 0;
        display: none;
        z-index: 100;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links li {
        margin: 0;
    }
    
    .nav-links a {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .dropdown {
        position: static;
        box-shadow: none;
        width: 100%;
        padding-left: var(--spacing-lg);
        border-top: 1px solid var(--border-color);
        border-bottom: 1px solid var(--border-color);
    }
    
    .footer-columns {
        flex-direction: column;
    }
    
    .footer-column {
        flex: 0 0 100%;
    }
    
    .scholars-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .register-tabs .tab-btn {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .search-filters {
        flex-direction: column;
    }
    
    .filter-group {
        width: 100%;
        margin-bottom: var(--spacing-lg);
    }
}

/* ===== Smartphones (landscape) ===== */
@media screen and (max-width: 768px) {
    :root {
        --font-size-huge: 2rem;
        --font-size-xxl: 1.5rem;
        --font-size-xl: 1.25rem;
    }
    
    .site-content {
        padding: var(--spacing-lg) 0;
    }
    
    .main-header {
        height: 70px;
    }
    
    .logo-img {
        height: 40px;
    }
    
    .language-switcher {
        margin-left: var(--spacing-md);
    }
    
    .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer-legal {
        justify-content: center;
    }
    
    .footer-legal li:first-child {
        margin-left: 0;
    }
    
    .scholars-grid {
        grid-template-columns: 1fr;
    }
    
    .profile-tabs .tabs-nav {
        flex-direction: column;
    }
    
    .profile-tabs .tab-link {
        width: 100%;
        margin-right: 0;
        margin-bottom: var(--spacing-xs);
        text-align: center;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .register-tab-header {
        flex-direction: column;
    }
    
    .register-tabs .tab-btn {
        width: 100%;
        margin-bottom: var(--spacing-xs);
    }
    
    .form-row {
        flex-direction: column;
    }
    
    .search-main {
        flex-direction: column;
    }
    
    .search-input-wrapper {
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
    
    .search-button {
        width: 100%;
    }
}

/* ===== Smartphones (portrait) ===== */
@media screen and (max-width: 576px) {
    :root {
        --font-size-xxl: 1.4rem;
        --font-size-xl: 1.2rem;
        --font-size-lg: 1.1rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .checkbox-group {
        flex-direction: column;
    }
    
    .scholar-card {
        padding: var(--spacing-md);
    }
    
    .scholar-actions {
        flex-direction: column;
    }
    
    .scholar-actions .btn {
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
}

/* ===== PWA-spezifische Stile ===== */
@media (display-mode: standalone) {
    .site-content {
        padding-top: calc(var(--spacing-xl) + env(safe-area-inset-top));
        padding-bottom: calc(var(--spacing-xl) + env(safe-area-inset-bottom));
    }
    
    .main-header {
        padding-top: env(safe-area-inset-top);
    }
}

/* ===== Dunkelmodus ===== */
@media (prefers-color-scheme: dark) {
    :root {
        --background-color: #1a1a1a;
        --text-color: #f0f0f0;
        --border-color: #444444;
        --light-color: #333333;
    }
    
    .main-header {
        background-color: #222222;
    }
    
    .nav-links a {
        color: #e0e0e0;
    }
    
    .dropdown, .lang-dropdown {
        background-color: #222222;
    }
    
    .dropdown a:hover, .lang-dropdown a:hover {
        background-color: #333333;
    }
    
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="tel"],
    select,
    textarea {
        background-color: #333333;
        color: var(--text-color);
    }
    
    .field-tag {
        background-color: rgba(44, 62, 80, 0.3);
    }
    
    .language-tag {
        background-color: rgba(230, 126, 34, 0.3);
    }
    
    .scholar-card, .service-card {
        background-color: #222222;
    }
}

/* ===== Druckversion ===== */
@media print {
    .main-header, .main-nav, .footer, .tab-navigation, .scholar-actions {
        display: none;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    .site-content {
        padding: 0;
    }
    
    .tab-pane {
        display: block !important;
        margin-bottom: var(--spacing-xl);
    }
    
    .tab-pane h3 {
        page-break-after: avoid;
    }
    
    .tab-content {
        page-break-inside: avoid;
    }
    
    a {
        text-decoration: none;
        color: var(--text-color);
    }
}