/* Mobile Responsive Styles */

/* Hide mobile menu by default (desktop) */
.mobile-menu-toggle,
.mobile-menu-overlay,
.mobile-menu-sidebar {
    display: none;
}

@media (max-width: 768px) {
    /* Hide desktop-only elements */
    .desktop-only {
        display: none !important;
    }

    /* Show mobile menu toggle */
    .mobile-menu-toggle {
        display: flex !important;
    }
    
    /* Mobile Menu Toggle Button */
    .mobile-menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        width: 32px;
        height: 32px;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: 0;
        z-index: var(--z-mobile-menu-toggle);
        position: relative;
    }

    .mobile-menu-toggle .hamburger-line {
        width: 100%;
        height: 2.5px;
        background-color: #001e00;
        border-radius: 2px;
        transition: var(--transition-normal);
        transform-origin: center;
    }

    .mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }

    .mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    /* Mobile Menu Overlay */
    .mobile-menu-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 30, 0, 0.2);
        backdrop-filter: blur(4px);
        z-index: var(--z-mobile-overlay);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-opacity);
    }

    .mobile-menu-overlay.active {
        opacity: 1;
        visibility: visible;
    }

    /* Mobile Menu Sidebar */
    .mobile-menu-sidebar {
        position: fixed;
        top: 0;
        right: 0;
        width: 85%;
        max-width: 310px;
        height: 100%;
        background: #ffffff;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.05);
        z-index: var(--z-mobile-sidebar);
        transform: translateX(100%);
        transition: transform var(--transition-normal) cubic-bezier(0.16, 1, 0.3, 1);
        display: flex;
        flex-direction: column;
        overflow-y: auto;
        border-left: 1px solid #e4ebe4;
    }

    .mobile-menu-sidebar.active {
        transform: translateX(0);
    }

    .mobile-menu-sidebar[aria-hidden="false"] {
        transform: translateX(0);
    }

    /* Mobile Menu Header */
    .mobile-menu-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px;
        border-bottom: 1px solid #e4ebe4;
        background: #f9fbf9;
    }

    .mobile-menu-header h2 {
        color: #001e00;
        font-size: 20px;
        font-weight: 700;
        margin: 0;
        letter-spacing: -0.01em;
    }

    .mobile-menu-close {
        background: #ffffff;
        border: 1px solid #e4ebe4;
        color: #001e00;
        cursor: pointer;
        padding: 6px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        width: 32px;
        height: 32px;
        transition: var(--transition-bg);
    }

    .mobile-menu-close:hover {
        background-color: #f2f7f2;
        border-color: #14a800;
        color: #14a800;
    }

    /* Mobile Menu Content */
    .mobile-menu-content {
        flex: 1;
        padding: 20px;
        display: flex;
        flex-direction: column;
        gap: 25px;
    }

    /* Mobile User Info */
    .mobile-user-info {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 16px;
        background: #f9fbf9;
        border-radius: 10px;
        border: 1px solid #e4ebe4;
    }

    .mobile-user-avatar {
        width: var(--avatar-size-sm);
        height: var(--avatar-size-sm);
        border-radius: 50%;
        background: rgba(20, 168, 0, 0.08);
        display: flex;
        align-items: center;
        justify-content: center;
        color: #14a800;
        flex-shrink: 0;
        border: 1px solid rgba(20, 168, 0, 0.15);
    }

    .mobile-user-details {
        display: flex;
        flex-direction: column;
        gap: 2px;
        flex: 1;
        min-width: 0;
    }

    .mobile-user-name {
        color: #001e00;
        font-size: 15px;
        font-weight: 600;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .mobile-user-email {
        color: #64748b;
        font-size: 13px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    /* Mobile Language Section */
    .mobile-language-section h3 {
        color: #001e00;
        font-size: 14px;
        font-weight: 700;
        margin: 0 0 10px 0;
        letter-spacing: 0.05em;
        text-transform: uppercase;
    }

    .mobile-language-switcher {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 10px;
        background: #f9fbf9;
        border-radius: 10px;
        border: 1px solid #e4ebe4;
    }

    .mobile-language-switcher img {
        width: 16px;
        height: 16px;
        opacity: 0.8;
    }

    .mobile-lang-btn {
        flex: 1;
        padding: 8px 10px;
        background: #ffffff;
        border: 1px solid #e4ebe4;
        border-radius: 6px;
        color: #001e00;
        font-size: 13px;
        font-weight: 600;
        cursor: pointer;
        transition: var(--transition-normal);
        font-family: var(--font-heading);
    }

    .mobile-lang-btn:hover {
        background: #f2f7f2;
        color: #14a800;
        border-color: #14a800;
    }

    .mobile-lang-btn[aria-pressed="true"] {
        background: rgba(20, 168, 0, 0.08);
        color: #14a800;
        border-color: #14a800;
        box-shadow: 0 2px 6px rgba(20, 168, 0, 0.05);
    }

    /* Mobile Logout Button */
    .mobile-menu-actions {
        margin-top: auto;
        padding-top: 20px;
        border-top: 1px solid #e4ebe4;
    }

    .mobile-logout-button {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 20px;
        background: rgba(239, 68, 68, 0.08);
        border: 1px solid rgba(239, 68, 68, 0.2);
        border-radius: 10px;
        color: #ef4444;
        font-size: 15px;
        font-weight: 600;
        cursor: pointer;
        transition: var(--transition-normal);
    }

    .mobile-logout-button:hover {
        background: rgba(239, 68, 68, 0.15);
        border-color: #ef4444;
        transform: translateY(-1px);
    }

    .mobile-logout-button:active {
        transform: translateY(0);
    }

    .mobile-logout-button svg {
        flex-shrink: 0;
    }

    .admin-dashboard:not([data-standalone="true"]) {
        width: 100vw;
        height: 100vh;
        max-height: none;
        inset: 0;
        transform: none;
        border-radius: 0;
    }

    .admin-dashboard__header,
    .admin-dashboard__body {
        padding: var(--spacing-lg);
    }

    .admin-dashboard__body {
        grid-template-columns: 1fr;
    }

    .admin-token-form {
        flex-direction: column;
        align-items: stretch;
    }

    .admin-token-form input {
        min-width: 100%;
        flex: 0;
    }
    .admin-section {
        padding: var(--spacing-md);
    }
    .admin-dashboard[data-standalone="true"] {
        margin: 0;
    }

    .admin-users-table-wrapper {
        height: auto !important;
    }

    .admin-users-table tbody {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
        min-width: 85vw;
    }

    .admin-users-table tbody tr {
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 100%;
    }

    .admin-page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    .admin-page-actions {
        width: 100%;
        justify-content: space-between;
        gap: var(--spacing-sm);
    }

    .admin-page-status {
        flex: 1;
    }

    .admin-credentials-modal__content {
        width: min(26rem, 94vw);
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
    }

    .admin-credentials-actions .admin-primary-button {
        font-size: var(--font-sm);
    }
}

/* Desktop: Hide mobile menu */
@media (min-width: 769px) {
    .mobile-menu-toggle,
    .mobile-menu-overlay,
    .mobile-menu-sidebar {
        display: none !important;
    }

    .desktop-only {
        display: flex !important;
    }
}

/* ===================================
   RESPONSIVE STYLES FOR DESKTOP APP
   Supports different monitor sizes
   Compatible with Edge and Chrome
   =================================== */

/* Extra Large Monitors (2K, 4K, Ultra-wide) - 1920px and above */
@media (min-width: 120em) {
    :root {
        /* Increase spacing for larger screens */
        --spacing-xs: 0.75rem;
        --spacing-sm: 1rem;
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 2.5rem;
        --spacing-2xl: 3.75rem;
        
        /* Increase font sizes for better readability */
        --font-xs: 0.875rem;
        --font-sm: 1rem;
        --font-md: 1.125rem;
        --font-lg: 1.25rem;
        --font-xl: 1.5rem;
        --font-2xl: 1.875rem;
        --font-3xl: 2.25rem;
    }
}

@media (min-width: 64em) {
    .admin-dashboard__body {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .admin-section--users {
        grid-column: 1 / -1;
    }
}

/* Large Monitors (1600px - 1919px) */
@media (min-width: 100em) and (max-width: 119.9375em) {
    :root {
        --spacing-xs: 0.625rem;
        --spacing-sm: 0.875rem;
        --spacing-md: 1.25rem;
        --spacing-lg: 1.75rem;
        --spacing-xl: 2.25rem;
        --spacing-2xl: 3.25rem;
    }
}

/* Standard Desktop (1366px - 1599px) */
@media (min-width: 85.375em) and (max-width: 99.9375em) {
    :root {
        --spacing-xs: 0.5rem;
        --spacing-sm: 0.75rem;
        --spacing-md: 1.125rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 2.75rem;
        
        --font-xs: 0.75rem;
        --font-sm: 0.875rem;
        --font-md: 1rem;
        --font-lg: 1.125rem;
        --font-xl: 1.375rem;
        --font-2xl: 1.625rem;
        --font-3xl: 2rem;
    }
    
    .lessons {
        margin-top: clamp(4rem, 8vh, 6rem);
    }
}

/* Smaller Desktop/Laptop (1024px - 1365px) */
@media (min-width: 64em) and (max-width: 85.3125em) {
    :root {
        --spacing-xs: 0.5rem;
        --spacing-sm: 0.625rem;
        --spacing-md: 1rem;
        --spacing-lg: 1.25rem;
        --spacing-xl: 1.75rem;
        --spacing-2xl: 2.5rem;
        
        --font-xs: 0.75rem;
        --font-sm: 0.875rem;
        --font-md: 1rem;
        --font-lg: 1.125rem;
        --font-xl: 1.25rem;
        --font-2xl: 1.5rem;
        --font-3xl: 1.875rem;
    }
    
    .header {
        min-height: clamp(4rem, 10vh, 5rem);
    }
    
    .lessons {
        margin-top: clamp(3.5rem, 6vh, 5rem);
        gap: clamp(1.25rem, 2vh, 1.75rem);
    }
    
    .item > span {
        font-size: clamp(1.25rem, 1.8vw, 1.5rem);
    }
    
    .item > img {
        width: clamp(3.5rem, 4.5vw, 4.5rem);
        height: clamp(3.5rem, 4.5vw, 4.5rem);
    }
    
    .question-content {
        gap: clamp(1.25rem, 2vw, 1.75rem);
    }
}

/* Compact Desktop/Tablet Landscape (768px - 1023px) */
@media (min-width: 48em) and (max-width: 63.9375em) {
    :root {
        --spacing-xs: 0.5rem;
        --spacing-sm: 0.625rem;
        --spacing-md: 0.875rem;
        --spacing-lg: 1.125rem;
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
        
        --font-xs: 0.75rem;
        --font-sm: 0.8125rem;
        --font-md: 0.9375rem;
        --font-lg: 1.0625rem;
        --font-xl: 1.1875rem;
        --font-2xl: 1.375rem;
        --font-3xl: 1.625rem;
    }
    
    .header {
        min-height: clamp(3.75rem, 8vh, 4.5rem);
        padding: clamp(0.875rem, 1.5vh, 1.25rem) 3%;
    }
    
    .logo img {
        width: clamp(7.5rem, 10vw, 9rem);
    }
    
    .lessons {
        margin-top: clamp(3rem, 5vh, 4.5rem);
        width: min(95%, 45rem);
        gap: clamp(1rem, 2vh, 1.25rem);
    }
    
    .item {
        padding: clamp(0.5rem, 0.75vw, 0.75rem);
        gap: clamp(1rem, 1.5vw, 1.25rem);
    }
    
    .item > span {
        font-size: clamp(1.125rem, 1.5vw, 1.35rem);
    }
    
    .item > img {
        width: clamp(3.25rem, 4.5vw, 4rem);
        height: clamp(3.25rem, 4.5vw, 4rem);
    }
    
    /* Make question content single column on smaller screens */
    .question-content {
        grid-template-columns: 1fr;
        gap: clamp(1rem, 1.5vh, 1.25rem);
    }
    
    .question-image {
        order: -1; /* Show image first */
    }
    
    .topics {
        grid-template-columns: repeat(auto-fit, minmax(clamp(10rem, 12.5vw, 12.5rem), 1fr));
    }
    
    .back-button {
        width: clamp(3rem, 3.5vw, 3.5rem);
        height: clamp(3rem, 3.5vw, 3.5rem);
        padding: clamp(0.625rem, 0.75vw, 0.75rem);
    }
    
    .back-button:hover {
        width: auto;
        padding: clamp(0.625rem, 0.75vw, 0.75rem) clamp(1.25rem, 1.5vw, 1.5rem);
    }
    
    .home-button {
        min-width: clamp(8rem, 10vw, 10rem);
        padding: clamp(0.5rem, 0.75vw, 0.75rem) clamp(1rem, 1.25vw, 1.25rem);
    }
}


@media (max-width: 48em) {
    .header {
        padding: 2%;
    }
    .lessons {
        grid-template-columns: 1fr;
        width: 100vw;
        padding: 4%;
    }
    .chapters {
        width: 95vw;
    }
    .chapter-button {
        width: 100%;
    }
    .question-interface {
        width: 100vw;
        padding: 4%;
    }
    .language-switcher img {
        display: none;
    }
    .question-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    .question-image {
        order: -1;
    }
}

/* Height-based adjustments for ultra-wide monitors */
@media (min-aspect-ratio: 21/9) {
    .lessons {
        margin-top: clamp(6rem, 12vh, 10rem);
    }
    
    .header {
        min-height: clamp(4.5rem, 10vh, 6.5rem);
    }
}

/* Height-based adjustments for standard monitors */
@media (max-height: 768px) {
    .lessons {
        margin-top: clamp(3rem, 6vh, 5rem);
    }
    
    .header {
        min-height: clamp(4rem, 10vh, 5rem);
    }
    
    .question-image img {
        max-height: clamp(20rem, 80vh, 22rem);
    }
}

/* Very short screens (below 600px height) */
@media (max-height: 37.5em) {
    .lessons {
        margin-top: clamp(2rem, 5vh, 4rem);
        padding: clamp(1rem, 1.5vh, 1.5rem);
    }
    
    .header {
        min-height: clamp(3rem, 8vh, 3.75rem);
        padding: clamp(0.5rem, 1vh, 0.875rem) 5%;
    }
    
    .item {
        padding: clamp(0.5rem, 0.75vw, 0.75rem);
    }
    
    .item > img {
        width: clamp(3rem, 4vw, 3.75rem);
        height: clamp(3rem, 4vw, 3.75rem);
    }
    
    .question-content {
        padding: clamp(1rem, 1.5vh, 1.5rem);
    }
}

/* Ensure proper scaling for high DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Print styles */
@media print {
    .header,
    .back-button,
    .home-button,
    .question-controls {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .question-content {
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }
}

/* Accessibility: Respect motion preferences */
@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;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .item,
    .answer,
    .topic-item,
    .chapter-button {
        border-width: 2px;
    }
}