/**
 * StuVe Theme - Mobile-First Responsive Styles
 * 
 * Complete mobile experience redesign for student representative organization
 * 
 * Mobile Design Philosophy:
 * - Touch-friendly with large tap targets (min 48px)
 * - Thumb-zone optimized navigation
 * - Vertical scrolling optimized layouts
 * - Fast loading with simplified visuals
 * - Bold typography for readability
 * - Sharp angles consistent with desktop design
 */

@media screen and (max-width: 767px) {
    
    :root {
        --header-height-mobile: 60px;
        --tap-target-mobile: 48px;
        --spacing-mobile-xs: 0.5rem;
        --spacing-mobile-sm: 0.75rem;
        --spacing-mobile-md: 1rem;
        --spacing-mobile-lg: 1.5rem;
        --font-size-mobile-base: 16px;
        --font-size-mobile-large: 18px;
    }

    html {
        font-size: var(--font-size-mobile-base);
        -webkit-tap-highlight-color: rgba(89, 199, 235, 0.2);
    }

    body {
        padding-top: 0;
        overflow-x: hidden;
    }

    a, button {
        min-height: var(--tap-target-mobile);
        min-width: var(--tap-target-mobile);
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background-color: var(--color-white);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }

    .header-container {
        padding: var(--spacing-mobile-sm) var(--spacing-mobile-md);
        display: grid;
        grid-template-columns: auto 1fr auto;
        grid-template-areas: 
            "branding tools toggle";
        align-items: center;
        gap: var(--spacing-mobile-sm);
        min-height: var(--header-height-mobile);
    }

    .site-branding {
        grid-area: branding;
        display: flex;
        align-items: center;
        gap: var(--spacing-mobile-xs);
    }

    .site-logo img {
        max-height: 36px;
        width: auto;
    }

    .site-title {
        font-size: 1rem;
        font-weight: 700;
        margin: 0;
        max-width: 120px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .site-description {
        display: none !important;
    }

    .header-tools {
        grid-area: tools;
        display: flex;
        align-items: center;
        justify-content: flex-end;
        gap: var(--spacing-mobile-xs);
    }

    .search-toggle {
        width: var(--tap-target-mobile);
        height: var(--tap-target-mobile);
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 0;
        background: transparent;
        border: none;
    }

    .search-toggle .icon-search {
        width: 22px;
        height: 22px;
    }

    .language-switcher {
        display: none;
    }

    .uni-branding {
        display: none;
    }

    .main-navigation {
        grid-area: toggle;
        display: flex;
        align-items: center;
        justify-content: flex-end;
    }

    .menu-toggle {
        display: flex !important;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        width: var(--tap-target-mobile);
        height: var(--tap-target-mobile);
        background: transparent;
        border: 2px solid var(--color-black);
        padding: 0;
        cursor: pointer;
        z-index: 1002;
    }

    .menu-toggle-icon {
        width: 22px;
        display: flex;
        flex-direction: column;
        gap: 5px;
    }

    .menu-toggle-icon .bar {
        height: 2px;
        background-color: var(--color-black);
        transition: all 0.3s ease;
        transform-origin: center;
    }

    .menu-toggle[aria-expanded="true"] .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .menu-toggle[aria-expanded="true"] .bar:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }
    .menu-toggle[aria-expanded="true"] .bar:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .primary-menu {
        display: none;
        position: fixed;
        top: var(--header-height-mobile);
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--color-white);
        flex-direction: column;
        gap: 0;
        padding: 0;
        margin: 0;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        z-index: 1001;
        transform: translateX(100%);
        transition: transform 0.3s ease;
    }

    .primary-menu.is-open {
        display: flex;
        transform: translateX(0);
    }

    .primary-menu > li {
        border-bottom: 1px solid var(--color-border);
    }

    .primary-menu > li > a {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: var(--spacing-mobile-lg) var(--spacing-mobile-md);
        font-size: var(--font-size-mobile-large);
        font-weight: 600;
        color: var(--color-text-primary);
        text-decoration: none;
        min-height: 56px;
        background-color: var(--color-white);
        transition: background-color 0.2s ease;
    }

    .primary-menu > li > a:active {
        background-color: var(--color-secondary);
    }

    .primary-menu a::after {
        display: none !important;
    }

    .primary-menu .menu-item-has-children > a::before {
        order: 2;
        margin-left: auto;
        border-left: 6px solid transparent;
        border-right: 6px solid transparent;
        border-top: 7px solid var(--color-text-primary);
        transition: transform 0.3s ease;
    }

    .primary-menu .menu-item-has-children.is-open > a::before {
        transform: rotate(180deg);
    }

    .primary-menu .sub-menu {
        position: static;
        display: block;
        background-color: var(--color-secondary);
        border-top: none;
        border-left: 4px solid var(--color-primary);
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        padding: 0;
        margin: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
    }

    .primary-menu .menu-item-has-children.is-open > .sub-menu {
        max-height: 1000px;
    }

    .primary-menu .sub-menu li {
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    .primary-menu .sub-menu li:last-child {
        border-bottom: none;
    }

    .primary-menu .sub-menu a {
        display: block;
        padding: var(--spacing-mobile-md) var(--spacing-mobile-md) var(--spacing-mobile-md) calc(var(--spacing-mobile-md) + 1rem);
        font-size: 1rem;
        font-weight: 500;
        color: var(--color-text-primary);
        min-height: 50px;
        display: flex;
        align-items: center;
    }

    .primary-menu .sub-menu a:active {
        background-color: rgba(89, 199, 235, 0.15);
        color: var(--color-primary);
    }

    .hero-welcome-banner {
        min-height: 280px;
        max-height: 350px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .hero-content {
        padding: var(--spacing-mobile-md);
    }

    .hero-title {
        font-size: 1.5rem;
        font-weight: 800;
        line-height: 1.3;
        text-align: center;
        padding: 0 var(--spacing-mobile-sm);
        text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.8);
    }

    .posts-carousel-section {
        padding: var(--spacing-mobile-md) 0;
    }

    .posts-carousel-container {
        flex-direction: column;
        gap: 0;
    }

    .posts-preview-list {
        display: none;
    }

    .posts-carousel {
        flex: none;
        width: 100%;
        margin: 0;
        box-shadow: none;
    }

    .carousel-slides {
        height: 300px;
    }

    .carousel-slide-link {
        display: block;
        width: 100%;
        height: 100%;
    }

    .carousel-image {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .carousel-title-overlay {
        padding: var(--spacing-mobile-lg) var(--spacing-mobile-md) var(--spacing-mobile-md);
        background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.6) 50%, transparent 100%);
    }

    .carousel-title {
        font-size: 1.25rem;
        font-weight: 700;
        line-height: 1.3;
    }

    .carousel-indicators {
        display: none;
    }

    .carousel-container {
        touch-action: pan-y pinch-zoom;
        cursor: grab;
    }

    .carousel-container.is-swiping {
        cursor: grabbing;
    }

    .preview-all-news-btn {
        display: none;
    }

    .mobile-all-news-btn {
        display: block;
        margin: var(--spacing-mobile-md);
        padding: var(--spacing-mobile-md);
        background-color: var(--color-primary);
        color: var(--color-white);
        text-align: center;
        font-weight: 700;
        font-size: 1rem;
        text-decoration: none;
        min-height: var(--tap-target-mobile);
    }

    .mobile-all-news-btn:active {
        background-color: var(--color-black);
    }

    .quick-links-section {
        padding: var(--spacing-mobile-lg) 0;
    }

    .quick-links-section::before {
        background-color: rgba(255, 255, 255, 0.85);
    }

    .quick-links-container {
        padding: 0 var(--spacing-mobile-md);
    }

    .quick-links-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-mobile-md);
    }

    .quick-link-card {
        padding: var(--spacing-mobile-lg);
        box-shadow: 0 3px 0 0 var(--color-primary);
        border: 1px solid var(--color-border);
    }

    .card-title {
        font-size: 1.25rem;
        font-weight: 700;
        margin-bottom: var(--spacing-mobile-md);
    }

    .card-links {
        gap: 0;
    }

    .card-links li {
        border-bottom: 1px solid var(--color-border);
        margin: 0;
        padding: 0;
    }

    .card-links li:last-child {
        border-bottom: none;
    }

    .card-links a {
        display: flex;
        align-items: center;
        gap: var(--spacing-mobile-sm);
        padding: var(--spacing-mobile-md) 0;
        font-size: 1rem;
        font-weight: 500;
        color: var(--color-text-primary);
        text-decoration: none;
        min-height: var(--tap-target-mobile);
    }

    .card-links a:active {
        color: var(--color-primary);
    }

    .card-links .icon-arrow {
        width: 18px;
        height: 18px;
        flex-shrink: 0;
        color: var(--color-primary);
    }

    .search-modal {
        padding: 0;
    }

    .search-modal-content {
        width: 100%;
        max-width: 100%;
        height: 100vh;
        max-height: 100vh;
        margin: 0;
        padding: var(--spacing-mobile-md);
        display: flex;
        flex-direction: column;
    }

    .search-modal-header {
        padding-bottom: var(--spacing-mobile-md);
        border-bottom: 1px solid var(--color-border);
        margin-bottom: var(--spacing-mobile-md);
    }

    .search-modal-title {
        font-size: 1.5rem;
    }

    .search-modal-close {
        width: var(--tap-target-mobile);
        height: var(--tap-target-mobile);
    }

    .search-form {
        flex: 1;
    }

    .search-field {
        width: 100%;
        padding: var(--spacing-mobile-md);
        font-size: var(--font-size-mobile-large);
        border: 2px solid var(--color-border);
        min-height: 56px;
    }

    .search-submit {
        width: 100%;
        padding: var(--spacing-mobile-md);
        margin-top: var(--spacing-mobile-md);
        font-size: var(--font-size-mobile-large);
        font-weight: 700;
        background-color: var(--color-primary);
        color: var(--color-white);
        border: none;
        min-height: 56px;
    }

    .site-content-wrapper {
        padding: var(--spacing-mobile-md) 0;
    }

    .content-container {
        padding: 0 var(--spacing-mobile-md);
        width: auto;
    }

    .entry-header {
        margin-bottom: var(--spacing-mobile-md);
    }

    .entry-title {
        font-size: 1.75rem;
        font-weight: 800;
        line-height: 1.2;
    }

    .page-title {
        font-size: 1.75rem;
    }

    .entry-content {
        font-size: 1rem;
        line-height: 1.7;
    }

    .entry-content p {
        margin-bottom: var(--spacing-mobile-md);
    }

    .entry-content h2 {
        font-size: 1.5rem;
        margin-top: var(--spacing-mobile-lg);
    }

    .entry-content h3 {
        font-size: 1.25rem;
        margin-top: var(--spacing-mobile-md);
    }

    .entry-content img {
        height: auto;
        max-width: 100%;
    }

    .post-thumbnail {
        margin-bottom: var(--spacing-mobile-md);
    }

    .post-thumbnail img {
        width: 100%;
        height: auto;
    }

    .single-post {
        padding: var(--spacing-mobile-md);
    }

    .single-post .entry-title {
        font-size: 1.5rem;
    }

    .entry-meta {
        font-size: 0.875rem;
        margin-bottom: var(--spacing-mobile-md);
        flex-wrap: wrap;
        gap: var(--spacing-mobile-xs);
    }

    .post-navigation {
        margin-top: var(--spacing-mobile-lg);
        padding: var(--spacing-mobile-lg) var(--spacing-mobile-md);
    }

    .post-navigation .nav-links {
        display: grid;
        grid-template-columns: 1fr;
        gap: var(--spacing-mobile-md);
    }

    .post-navigation .nav-next {
        text-align: left;
    }

    .post-navigation .nav-next a {
        border-right: none;
        border-left: 4px solid var(--color-primary);
    }

    .post-navigation a {
        padding: var(--spacing-mobile-md);
        min-height: var(--tap-target-mobile);
    }

    .post-item {
        grid-template-columns: 1fr;
        gap: var(--spacing-mobile-md);
        padding-bottom: var(--spacing-mobile-lg);
        margin-bottom: var(--spacing-mobile-lg);
    }

    .post-item .post-thumbnail {
        height: 200px;
    }

    .post-item-content {
        padding: 0;
    }

    .post-item-title {
        font-size: 1.25rem;
    }

    .post-item-excerpt {
        font-size: 0.95rem;
        line-height: 1.6;
    }

    .site-footer {
        padding: var(--spacing-mobile-lg) 0;
    }

    .footer-container {
        padding: 0 var(--spacing-mobile-md);
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: var(--spacing-mobile-lg);
    }

    .footer-column {
        padding: 0;
        border-bottom: 1px solid var(--color-border);
        padding-bottom: var(--spacing-mobile-lg);
    }

    .footer-column:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }

    .footer-column-title {
        font-size: 1.1rem;
        margin-bottom: var(--spacing-mobile-md);
    }

    .footer-menu li,
    .footer-links-list li {
        margin-bottom: var(--spacing-mobile-xs);
    }

    .footer-menu a,
    .footer-links-list a {
        display: flex;
        align-items: center;
        gap: var(--spacing-mobile-xs);
        padding: var(--spacing-mobile-sm) 0;
        min-height: var(--tap-target-mobile);
    }

    .footer-contact-info .contact-item {
        margin-bottom: var(--spacing-mobile-sm);
        display: flex;
        align-items: flex-start;
        gap: var(--spacing-mobile-sm);
    }

    .footer-button {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: var(--spacing-mobile-md) var(--spacing-mobile-lg);
        min-height: var(--tap-target-mobile);
        font-weight: 700;
    }

    .social-links-list {
        display: flex;
        flex-wrap: wrap;
        gap: var(--spacing-mobile-sm);
    }

    .social-links-list li {
        margin: 0;
    }

    .social-links-list a {
        display: flex;
        align-items: center;
        justify-content: center;
        width: var(--tap-target-mobile);
        height: var(--tap-target-mobile);
        background-color: var(--color-secondary);
        padding: 0;
    }

    .social-links-list a span {
        display: none;
    }

    .social-links-list .icon {
        width: 24px;
        height: 24px;
    }

    .footer-bottom {
        padding-top: var(--spacing-mobile-lg);
        margin-top: var(--spacing-mobile-lg);
        text-align: center;
    }

    .footer-copyright {
        font-size: 0.875rem;
    }

    .team-members-section {
        padding: var(--spacing-mobile-lg) 0;
    }

    .team-section-title {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-mobile-lg);
    }

    .team-members-container {
        gap: var(--spacing-mobile-md);
        padding: var(--spacing-mobile-md);
        justify-content: center;
    }

    .team-member-avatar {
        width: 64px;
        height: 64px;
        border-width: 2px;
    }

    .team-member-info {
        bottom: auto;
        top: 100%;
        transform: translateX(-50%) translateY(8px);
        min-width: 140px;
        padding: var(--spacing-mobile-sm);
        font-size: 0.85rem;
    }

    .team-member-item:active .team-member-info,
    .team-member-item:focus .team-member-info,
    .team-member-item.is-active .team-member-info {
        opacity: 1;
        visibility: visible;
    }

    .team-member-name {
        font-size: 0.9rem;
    }

    .team-member-role {
        font-size: 0.75rem;
    }

    .error-404 {
        padding: var(--spacing-mobile-xl) var(--spacing-mobile-md);
        text-align: center;
    }

    .error-404 .page-title {
        font-size: 4rem;
        color: var(--color-primary);
    }

    .hide-on-mobile {
        display: none !important;
    }

    .show-on-mobile {
        display: block !important;
    }

    .site-main {
        scroll-behavior: smooth;
    }

    img {
        max-width: 100%;
        height: auto;
    }

    table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    iframe {
        max-width: 100%;
    }
}

@media screen and (max-width: 374px) {
    :root {
        --font-size-mobile-base: 14px;
    }

    .site-title {
        font-size: 0.875rem;
        max-width: 100px;
    }

    .hero-title {
        font-size: 1.25rem;
    }

    .carousel-slides {
        height: 250px;
    }

    .carousel-title {
        font-size: 1.1rem;
    }

    .entry-title,
    .page-title {
        font-size: 1.5rem;
    }

    .quick-link-card {
        padding: var(--spacing-mobile-md);
    }

    .card-title {
        font-size: 1.1rem;
    }
}

@media screen and (max-width: 767px) and (orientation: landscape) {
    .hero-welcome-banner {
        min-height: 200px;
        max-height: 250px;
    }

    .hero-title {
        font-size: 1.25rem;
    }

    .carousel-slides {
        height: 220px;
    }

    .primary-menu {
        padding-bottom: 100px;
    }
}

@media screen and (min-width: 768px) and (max-width: 1023px) {
    .header-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .site-title {
        font-size: 1.1rem;
    }

    .menu-toggle {
        display: flex;
    }

    .primary-menu {
        display: none;
        position: fixed;
        top: 70px;
        right: 0;
        width: 320px;
        height: calc(100vh - 70px);
        background-color: var(--color-white);
        box-shadow: -4px 0 12px rgba(0, 0, 0, 0.1);
        flex-direction: column;
        transform: translateX(100%);
        transition: transform 0.3s ease;
    }

    .primary-menu.is-open {
        display: flex;
        transform: translateX(0);
    }

    .hero-welcome-banner {
        min-height: 350px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .posts-carousel-container {
        flex-direction: row;
    }

    .posts-preview-list {
        display: flex;
        flex: 0 0 25%;
    }

    .posts-carousel {
        flex: 0 0 80%;
        margin-left: -5%;
    }

    .carousel-slides {
        height: 400px;
    }

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

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