/**
 * Mobile Responsiveness Enhancements - Immortal Nexus
 * Comprehensive mobile fixes and improvements
 *
 * Breakpoints:
 * - Mobile: 0-640px
 * - Tablet: 641-1024px
 * - Desktop: 1025px+
 */

/* ============================================================================
   TOUCH TARGET IMPROVEMENTS
   ============================================================================ */

@media (max-width: 768px) {
    /* Ensure all buttons meet minimum touch target size (44x44px) */
    button,
    .btn,
    a.button,
    input[type="button"],
    input[type="submit"] {
        min-height: 44px;
        min-width: 44px;
        padding: 12px 20px;
    }

    /* Icon-only buttons */
    button:not(:has(span)),
    .icon-btn {
        min-width: 48px;
        min-height: 48px;
        padding: 12px;
    }

    /* Links with icons */
    a {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }
}

/* ============================================================================
   TEXT READABILITY
   ============================================================================ */

@media (max-width: 640px) {
    /* Prevent tiny text on mobile */
    body {
        font-size: 16px !important; /* Prevents zoom on iOS */
        line-height: 1.6;
    }

    h1 {
        font-size: 1.75rem;
        line-height: 1.2;
    }

    h2 {
        font-size: 1.5rem;
        line-height: 1.3;
    }

    h3 {
        font-size: 1.25rem;
        line-height: 1.4;
    }

    p {
        font-size: 1rem;
        line-height: 1.6;
    }

    /* Prevent horizontal scrolling from long words */
    body, p, div, article {
        word-wrap: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
    }
}

/* ============================================================================
   NAVIGATION & HEADER
   ============================================================================ */

@media (max-width: 768px) {
    header {
        position: sticky;
        top: 0;
        z-index: 1000;
    }

    /* Hamburger menu improvements */
    .mobile-menu-toggle {
        min-width: 48px;
        min-height: 48px;
        font-size: 24px;
    }

    /* Mobile nav */
    nav {
        max-height: calc(100vh - 60px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    nav a {
        padding: 16px 24px;
        font-size: 18px;
    }

    /* User menu on mobile */
    .user-menu {
        position: fixed;
        top: 60px;
        right: 0;
        width: 280px;
        max-height: calc(100vh - 60px);
        overflow-y: auto;
    }
}

/* ============================================================================
   MODALS
   ============================================================================ */

@media (max-width: 768px) {
    .modal {
        padding: 0;
        align-items: flex-end;
    }

    .modal-content {
        width: 100%;
        max-width: 100%;
        max-height: 90vh;
        margin: 0;
        border-radius: 16px 16px 0 0;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .modal-header {
        position: sticky;
        top: 0;
        z-index: 10;
        background: inherit;
        padding: 16px;
    }

    .modal-body {
        padding: 20px 16px;
    }

    .modal-footer {
        position: sticky;
        bottom: 0;
        background: inherit;
        padding: 16px;
        border-top: 1px solid var(--border);
    }

    /* Close button mobile positioning */
    .close-modal,
    .modal-close {
        min-width: 44px;
        min-height: 44px;
        font-size: 24px;
    }
}

/* ============================================================================
   FORMS & INPUTS
   ============================================================================ */

@media (max-width: 768px) {
    input,
    textarea,
    select {
        font-size: 16px !important; /* Prevents zoom on iOS */
        min-height: 44px;
        padding: 12px 16px;
    }

    textarea {
        min-height: 120px;
    }

    /* Form groups */
    .form-group {
        margin-bottom: 24px;
    }

    label {
        font-size: 14px;
        font-weight: 600;
        margin-bottom: 8px;
        display: block;
    }

    /* Stack form buttons */
    .form-actions,
    .modal-actions {
        flex-direction: column;
        gap: 12px;
    }

    .form-actions button,
    .modal-actions button {
        width: 100%;
    }
}

/* ============================================================================
   CARDS & CONTAINERS
   ============================================================================ */

@media (max-width: 768px) {
    .card,
    .container,
    .content-box {
        margin: 16px 8px;
        padding: 16px;
        border-radius: 12px;
    }

    /* Blog post cards */
    .blog-post-card {
        padding: 16px;
    }

    .blog-post-card .post-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    /* Chronicle cards */
    .chronicle-card {
        padding: 16px;
    }

    /* Echo/message cards */
    .echo-card,
    .message-card {
        padding: 16px;
    }
}

/* ============================================================================
   TABLES
   ============================================================================ */

@media (max-width: 768px) {
    /* Make tables scrollable */
    table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap;
    }

    /* Stack table rows */
    .responsive-table {
        border: 0;
    }

    .responsive-table thead {
        display: none;
    }

    .responsive-table tr {
        display: block;
        margin-bottom: 16px;
        border: 1px solid var(--border);
        border-radius: 8px;
    }

    .responsive-table td {
        display: block;
        text-align: right;
        padding: 12px 16px;
        border-bottom: 1px solid var(--border-light);
    }

    .responsive-table td:before {
        content: attr(data-label);
        float: left;
        font-weight: bold;
    }

    .responsive-table td:last-child {
        border-bottom: 0;
    }
}

/* ============================================================================
   IMAGES & MEDIA
   ============================================================================ */

@media (max-width: 768px) {
    img {
        max-width: 100%;
        height: auto;
    }

    /* Avatar sizes */
    .avatar,
    .author-avatar {
        width: 40px;
        height: 40px;
    }

    .avatar-large {
        width: 80px;
        height: 80px;
    }

    /* Embedded videos */
    iframe,
    video {
        max-width: 100%;
        height: auto;
    }
}

/* ============================================================================
   GRID LAYOUTS
   ============================================================================ */

@media (max-width: 768px) {
    /* Single column on mobile */
    .grid,
    .souls-grid,
    .blog-grid,
    .chronicle-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    /* 2-column layouts become 1 column */
    .two-column {
        grid-template-columns: 1fr;
    }

    /* Sidebar layouts stack */
    .main-with-sidebar {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        order: 2; /* Content first, sidebar second */
    }
}

/* ============================================================================
   ACTIVE USERS SIDEBAR
   ============================================================================ */

@media (max-width: 768px) {
    #activeUsersAside {
        position: fixed;
        right: -100%;
        top: 0;
        height: 100vh;
        width: 280px;
        max-width: 85vw;
        transition: right 0.3s ease;
        z-index: 1100;
        box-shadow: -4px 0 12px rgba(0, 0, 0, 0.2);
    }

    #activeUsersAside.open {
        right: 0;
    }

    /* Show users button on mobile */
    #showUsersBtn {
        display: flex !important;
    }
}

/* ============================================================================
   FLOATING BUTTONS
   ============================================================================ */

@media (max-width: 768px) {
    .floating-buttons {
        bottom: 16px;
        right: 16px;
        gap: 12px;
    }

    .floating-buttons button,
    .fab {
        width: 56px;
        height: 56px;
        font-size: 20px;
    }

    /* Stack floating buttons vertically */
    .floating-buttons {
        flex-direction: column-reverse;
    }
}

/* ============================================================================
   PAGINATION
   ============================================================================ */

@media (max-width: 640px) {
    .pagination {
        flex-wrap: wrap;
        gap: 8px;
        justify-content: center;
    }

    .page-btn {
        min-width: 40px;
        padding: 8px 12px;
        font-size: 14px;
    }

    /* Hide some page numbers on mobile */
    .page-btn:not(.active):not(:first-child):not(:last-child) {
        display: none;
    }

    /* Show only current, prev, next, first, last */
    .page-btn.active,
    .page-btn:first-child,
    .page-btn:last-child,
    .page-btn:has(i) {
        display: inline-flex;
    }
}

/* ============================================================================
   COMMENTS
   ============================================================================ */

@media (max-width: 768px) {
    .comment {
        padding: 12px;
        margin-bottom: 12px;
    }

    .comment-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .comment-avatar {
        width: 36px;
        height: 36px;
    }

    .comment-replies {
        margin-left: 20px;
        border-left: 2px solid var(--border);
        padding-left: 12px;
    }
}

/* ============================================================================
   FOOTER
   ============================================================================ */

@media (max-width: 768px) {
    footer {
        padding: 32px 16px;
        text-align: center;
    }

    footer .footer-links {
        flex-direction: column;
        gap: 16px;
    }
}

/* ============================================================================
   SCROLL BEHAVIORS
   ============================================================================ */

@media (max-width: 768px) {
    /* Prevent horizontal scroll */
    body {
        overflow-x: hidden;
    }

    /* Smooth scrolling for mobile */
    html {
        scroll-behavior: smooth;
    }

    /* Better scroll snap for carousels */
    .carousel,
    .scroll-container {
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
    }

    .carousel-item {
        scroll-snap-align: center;
    }
}

/* ============================================================================
   LOADING STATES
   ============================================================================ */

@media (max-width: 768px) {
    .loading-spinner {
        padding: 40px 20px;
    }

    .loading-text {
        font-size: 14px;
    }
}

/* ============================================================================
   ERROR MESSAGES
   ============================================================================ */

@media (max-width: 768px) {
    .error-boundary-ui,
    .toast,
    .notification {
        left: 8px;
        right: 8px;
        max-width: calc(100vw - 16px);
        bottom: 8px;
    }
}

/* ============================================================================
   UTILITIES
   ============================================================================ */

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

/* Show only on mobile */
.show-mobile {
    display: block !important;
}

@media (min-width: 769px) {
    .hide-mobile {
        display: block !important;
    }

    .show-mobile {
        display: none !important;
    }
}

/* Touch-friendly spacing */
@media (max-width: 768px) {
    .touch-spacing > * + * {
        margin-top: 16px;
    }
}

/* ============================================================================
   SAFE AREAS (iOS Notch Support)
   ============================================================================ */

@supports (padding: max(0px)) {
    @media (max-width: 768px) {
        body {
            padding-left: max(0px, env(safe-area-inset-left));
            padding-right: max(0px, env(safe-area-inset-right));
        }

        header {
            padding-top: max(0px, env(safe-area-inset-top));
        }

        .modal-content {
            padding-bottom: max(20px, env(safe-area-inset-bottom));
        }

        .floating-buttons {
            bottom: max(16px, env(safe-area-inset-bottom));
        }
    }
}

/* ============================================================================
   PERFORMANCE OPTIMIZATIONS
   ============================================================================ */

@media (max-width: 768px) {
    /* Disable animations on low-end devices */
    @media (prefers-reduced-motion: reduce) {
        *,
        *::before,
        *::after {
            animation-duration: 0.01ms !important;
            animation-iteration-count: 1 !important;
            transition-duration: 0.01ms !important;
        }
    }

    /* Reduce transform layers on mobile */
    * {
        will-change: auto;
    }

    /* Only animate transforms and opacity */
    * {
        transition-property: transform, opacity;
    }
}