/*
 * Shared Android/iOS compatibility layer.
 * Loaded last so every page gets the same compact mobile behavior.
 */

html {
    width: 100%;
    min-height: 100%;
    overflow-x: hidden;
    overflow-x: clip;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    width: 100%;
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
    overflow-x: clip;
}

img,
svg,
video,
canvas,
iframe {
    max-width: 100%;
}

img,
video {
    height: auto;
}

button,
input,
select,
textarea {
    max-width: 100%;
    font: inherit;
}

button,
a,
input,
select,
textarea,
[role="button"] {
    touch-action: manipulation;
}

button,
[role="button"] {
    -webkit-user-select: none;
    user-select: none;
}

input,
select,
textarea {
    font-size: 16px;
}

.toast,
.live-ticker,
.bubub-ai-widget,
#rpgFloatingHud {
    max-width: calc(100vw - 24px);
}

.lms-modal-content,
.detail-drawer {
    max-height: calc(100dvh - 16px);
}

@supports (padding: max(0px)) {
    body > .page {
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
        padding-top: env(safe-area-inset-top);
    }

    footer,
    .drawer-footer,
    .quiz-actions,
    .session-actions {
        padding-bottom: max(16px, env(safe-area-inset-bottom));
    }

    .focus-header {
        padding-left: max(14px, env(safe-area-inset-left));
        padding-right: max(14px, env(safe-area-inset-right));
        padding-top: env(safe-area-inset-top);
    }

    .focus-actions {
        padding-left: max(12px, env(safe-area-inset-left));
        padding-right: max(12px, env(safe-area-inset-right));
        padding-bottom: max(10px, env(safe-area-inset-bottom));
    }

    .focus-room {
        height: 100vh;
        height: 100dvh;
        grid-template-rows:
            calc(var(--header-height) + env(safe-area-inset-top))
            5px
            minmax(0, 1fr)
            calc(var(--footer-height) + env(safe-area-inset-bottom));
    }
}

@media (hover: none) and (pointer: coarse) {
    .btn,
    button,
    [role="button"],
    input[type="button"],
    input[type="submit"],
    input[type="reset"] {
        min-height: 42px;
    }

    .card:hover,
    .content-card:hover,
    .module-card:hover,
    .course-card:hover,
    .culture-card:hover,
    .phrase-card-interactive:hover {
        transform: none;
    }
}

@media (max-width: 720px) {
    :root {
        --mobile-gutter: 12px;
        --mobile-radius: 20px;
        --mobile-card-padding: 16px;
        --mobile-section-gap: 42px;
    }

    *,
    *::before,
    *::after {
        min-width: 0;
        box-sizing: border-box;
    }

    body {
        background-attachment: scroll;
        font-size: 14px;
        line-height: 1.55;
        overscroll-behavior-y: contain;
    }

    .noise {
        opacity: 0.025;
    }

    .orb {
        width: 220px;
        height: 220px;
        filter: blur(24px);
        opacity: 0.65;
    }

    .navbar {
        top: max(8px, env(safe-area-inset-top));
        width: calc(100% - (var(--mobile-gutter) * 2)) !important;
        margin-top: 8px !important;
        padding: 9px 10px !important;
        gap: 8px !important;
        border-radius: 18px !important;
    }

    .mobile-menu-drawer {
        right: min(-86vw, -320px);
        width: min(86vw, 320px);
        height: 100vh;
        height: 100dvh;
        padding:
            max(18px, env(safe-area-inset-top))
            16px
            max(18px, env(safe-area-inset-bottom));
        gap: 14px;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .mobile-menu-overlay.is-active .mobile-menu-drawer {
        transform: translateX(min(-86vw, -320px));
    }

    .mobile-menu-title {
        font-size: 17px;
    }

    .mobile-menu-links {
        gap: 6px;
    }

    .mobile-menu-links a {
        min-height: 42px;
        padding: 10px 12px;
        font-size: 13px;
    }

    .brand {
        min-width: 0;
        max-width: calc(100% - 104px);
        gap: 7px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        font-size: 16px !important;
    }

    .brand-logo {
        width: auto;
        height: 38px !important;
        flex: 0 0 auto;
        object-fit: contain;
    }

    .nav-actions {
        flex: 0 0 auto;
        gap: 5px !important;
    }

    .theme-toggle-btn,
    .sound-toggle-btn,
    .nav-actions button,
    .nav-actions [role="button"] {
        width: 40px;
        min-width: 40px !important;
        height: 40px;
        min-height: 40px !important;
        padding: 0 !important;
        border-radius: 13px !important;
    }

    .hero,
    .section,
    .arena,
    .workspace,
    .cta,
    footer,
    .app-shell,
    .account-shell,
    .focus-shell,
    .library-shell,
    .learning-shell,
    .materi-shell,
    .quiz-shell-wrap,
    .reader-shell,
    .session-shell {
        width: calc(100% - (var(--mobile-gutter) * 2)) !important;
        max-width: 100% !important;
    }

    .hero {
        margin-top: 28px !important;
        gap: 16px !important;
    }

    .section {
        margin-top: var(--mobile-section-gap) !important;
        padding-block: 0 !important;
    }

    .hero-copy,
    .hero-card,
    .setup-card,
    .arena-setup-card,
    .quiz-shell,
    .question-area,
    .side-card,
    .result-card,
    .session-card,
    .content-card,
    .module-card,
    .search-filter-panel,
    .glassmorphic-quiz {
        padding: var(--mobile-card-padding) !important;
        border-radius: var(--mobile-radius) !important;
    }

    .card,
    .course-card,
    .feature-card,
    .resource-card,
    .culture-card,
    .metric-card,
    .stat-card,
    .content-card,
    .module-card,
    .side-card,
    .result-card,
    .profile-card,
    .hub-panel,
    .region-progress-panel,
    .pro-benefit-card,
    .panel,
    .quiz-card,
    .question-card,
    .lesson-card,
    .book-card {
        padding: min(var(--mobile-card-padding), 16px) !important;
        border-radius: var(--mobile-radius) !important;
    }

    .hero-copy {
        min-height: 0 !important;
    }

    .hero h1,
    .hero-copy h1,
    .wonder-page-hero h1,
    .language-hero h1 {
        font-size: clamp(30px, 9.5vw, 44px) !important;
        line-height: 1.04 !important;
        letter-spacing: -0.045em !important;
    }

    h1 {
        font-size: clamp(28px, 9vw, 42px) !important;
        line-height: 1.06 !important;
    }

    h2 {
        font-size: clamp(22px, 7vw, 32px) !important;
        line-height: 1.12 !important;
    }

    h3 {
        font-size: clamp(17px, 5vw, 22px) !important;
        line-height: 1.18 !important;
    }

    .section-header h2,
    .cta h2 {
        font-size: clamp(26px, 8vw, 38px) !important;
        line-height: 1.08 !important;
    }

    .hero p,
    .hero-copy p,
    .section-header p,
    p,
    li {
        font-size: 14px !important;
        line-height: 1.58 !important;
    }

    small,
    .mini-tag,
    .badge,
    .section-kicker,
    .resource-meta,
    .card-meta,
    .stat-label {
        font-size: 11px !important;
        line-height: 1.25 !important;
    }

    .hero-actions,
    .cta-actions,
    .inline-actions,
    .panel-actions,
    .quiz-actions,
    .utility-actions {
        gap: 8px !important;
    }

    .hero-actions,
    .cta-actions,
    .inline-actions,
    .panel-actions,
    .quiz-actions,
    .utility-actions,
    .continue-actions,
    .pro-note-actions,
    .filter-row,
    .toolbar,
    .explorer-toolbar {
        display: flex !important;
        flex-wrap: wrap !important;
        max-width: 100%;
    }

    .btn {
        min-height: 42px !important;
        padding: 10px 14px !important;
        border-radius: 13px !important;
        font-size: 13px !important;
        line-height: 1.15 !important;
        white-space: normal !important;
        text-align: center !important;
    }

    .card-grid,
    .feature-grid,
    .resource-grid,
    .metric-grid,
    .stats-row,
    .achievement-grid,
    .result-grid,
    .culture-grid,
    .topic-grid,
    .module-grid,
    .course-grid,
    .library-grid,
    .overview-grid,
    .overview-extra-grid,
    .profile-stat-grid,
    .plan-grid,
    .insight-grid,
    .insight-stat-grid,
    .preference-fields,
    .preference-split,
    .explorer-stats,
    .explorer-dashboard-grid,
    .region-progress-grid,
    .pro-benefit-grid,
    .quiz-mode-grid,
    .answer-grid,
    .options-grid {
        gap: 12px !important;
        grid-template-columns: 1fr !important;
    }

    .card,
    .course-card,
    .feature-card,
    .resource-card,
    .culture-card,
    .metric-card,
    .stat-card {
        border-radius: var(--mobile-radius) !important;
    }

    .phone-wrap,
    .language-phone-wrap {
        min-height: 0 !important;
    }

    .phone,
    .language-phone {
        width: min(100%, 340px) !important;
        margin-inline: auto;
        transform: none !important;
    }

    .detail-drawer {
        top: 0 !important;
        bottom: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        max-height: 100dvh !important;
        padding-bottom: env(safe-area-inset-bottom);
        border-radius: 0 !important;
    }

    .lms-modal {
        padding:
            max(8px, env(safe-area-inset-top))
            max(8px, env(safe-area-inset-right))
            max(8px, env(safe-area-inset-bottom))
            max(8px, env(safe-area-inset-left)) !important;
    }

    .lms-modal-content {
        display: flex;
        flex-direction: column;
        min-height: 0;
        max-height: calc(100dvh - 16px) !important;
    }

    .lms-modal-body {
        min-height: 0;
        max-height: none !important;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .toast,
    .live-ticker {
        right: var(--mobile-gutter) !important;
        bottom: max(var(--mobile-gutter), env(safe-area-inset-bottom)) !important;
        left: var(--mobile-gutter) !important;
        width: auto !important;
        max-width: none !important;
    }

    table {
        font-size: 13px;
    }

    [class*="grid"],
    [class*="layout"],
    [class*="columns"],
    [class*="split"],
    [class*="dashboard"],
    [class*="workspace"] {
        max-width: 100%;
    }

    .app-rail,
    .side-panel,
    .reader-sidebar,
    .lesson-sidebar,
    .profile-sidebar,
    .quiz-sidebar,
    .question-sidebar,
    .session-sidebar {
        max-width: 100% !important;
    }

    .hero-visual,
    .phone-stage,
    .visual-panel,
    .spin-wheel-section {
        overflow: hidden !important;
    }

    .wheel,
    .spin-wheel,
    .wheel-container,
    .avatar-ring,
    .profile-orbit,
    .hero-device {
        max-width: min(100%, 300px) !important;
        max-height: 300px !important;
    }

    .table-wrap,
    .table-responsive,
    [class*="table-container"] {
        max-width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

@media (max-width: 480px) {
    :root {
        --mobile-gutter: 10px;
        --mobile-card-padding: 14px;
        --mobile-radius: 18px;
        --mobile-section-gap: 34px;
    }

    body {
        font-size: 13px;
    }

    .brand {
        max-width: calc(100% - 92px);
        font-size: 0 !important;
    }

    .brand-logo {
        height: 36px !important;
    }

    .hero {
        margin-top: 22px !important;
    }

    h1,
    .hero h1,
    .hero-copy h1,
    .wonder-page-hero h1,
    .language-hero h1 {
        font-size: clamp(25px, 8.6vw, 34px) !important;
        line-height: 1.08 !important;
    }

    h2,
    .section-header h2,
    .cta h2 {
        font-size: clamp(21px, 7vw, 28px) !important;
    }

    h3 {
        font-size: clamp(16px, 5vw, 20px) !important;
    }

    .hero p,
    .hero-copy p,
    .section-header p,
    p,
    li {
        font-size: 13px !important;
    }

    .hero-actions,
    .cta-actions,
    .inline-actions,
    .panel-actions,
    .quiz-actions,
    .utility-actions {
        align-items: stretch !important;
        flex-direction: column !important;
    }

    .hero-actions .btn,
    .cta-actions .btn,
    .inline-actions .btn,
    .panel-actions .btn,
    .quiz-actions .btn,
    .utility-actions .btn {
        width: 100%;
    }

    .badges-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    }

    .metric-grid,
    .stats-row,
    .profile-stat-grid,
    .explorer-stats,
    .region-progress-grid,
    .achievement-grid,
    .badges-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    }

    .drawer-flashcard {
        min-height: 180px;
        padding: 18px;
        border-radius: 20px;
    }
}

@media (max-width: 390px) {
    :root {
        --mobile-gutter: 8px;
        --mobile-card-padding: 12px;
        --mobile-radius: 16px;
        --mobile-section-gap: 30px;
    }

    .navbar {
        padding: 8px !important;
        border-radius: 16px !important;
    }

    .brand-logo {
        height: 32px !important;
    }

    .theme-toggle-btn,
    .sound-toggle-btn,
    .nav-actions button,
    .nav-actions [role="button"],
    .nav-hamburger {
        width: 38px !important;
        min-width: 38px !important;
        height: 38px !important;
        min-height: 38px !important;
        border-radius: 12px !important;
    }

    .btn {
        min-height: 40px !important;
        padding: 9px 11px !important;
        font-size: 12px !important;
    }

    .metric-grid,
    .stats-row,
    .profile-stat-grid,
    .explorer-stats,
    .region-progress-grid,
    .achievement-grid,
    .badges-grid {
        grid-template-columns: 1fr !important;
    }
}

@media (max-height: 560px) and (orientation: landscape) {
    .navbar {
        position: relative !important;
        top: 0 !important;
    }

    .hero {
        margin-top: 16px !important;
    }

    .lms-modal-content,
    .detail-drawer {
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

/* ============================================================
   ADVANCED MOBILE UI ENHANCEMENTS (Android & iOS)
   ============================================================ */

/* 1. iOS Smooth Native Inertial Scrolling */
.reading-desk-list,
.chat-history,
.mobile-menu-drawer,
.kanban-board,
.table-wrap,
.table-responsive,
.materi-sidebar,
.reader-sidebar,
.quiz-sidebar,
.explorer-sidebar,
.chips,
.filter-chips,
.category-bar,
.bubub-ai-messages,
.bubub-ai-chips,
.dialog-body,
.modal-body {
    -webkit-overflow-scrolling: touch !important;
}

/* 2. Prevention of Zoom-on-focus on iOS (force minimum 16px font-size for input elements) */
@media (max-width: 768px) {
    input, 
    select, 
    textarea, 
    .chat-input, 
    .bubub-ai-input, 
    .search-input {
        font-size: 16px !important;
    }
}

/* 3. Horizontal Scrolling Category Chips Bar (Alternative to wrapping layout on mobile) */
@media (max-width: 768px) {
    .chips, 
    .filter-chips, 
    .tab-buttons, 
    .category-bar {
        display: flex !important;
        flex-wrap: nowrap !important;
        overflow-x: auto !important;
        white-space: nowrap !important;
        gap: 8px !important;
        padding: 4px 8px 12px 4px !important;
        scrollbar-width: none !important; /* Firefox */
        -webkit-overflow-scrolling: touch !important;
    }
    .chips::-webkit-scrollbar,
    .filter-chips::-webkit-scrollbar,
    .tab-buttons::-webkit-scrollbar,
    .category-bar::-webkit-scrollbar {
        display: none !important;
    }
    .tool-chip, 
    .filter-chip, 
    .tab-btn {
        flex: 0 0 auto !important;
    }
}

/* 4. Safe Area Insets Adjustments for Modern Notches and Home Bars */
@supports (padding: max(0px)) {
    @media (orientation: landscape) and (max-width: 932px) {
        body {
            padding-left: env(safe-area-inset-left) !important;
            padding-right: env(safe-area-inset-right) !important;
        }
    }
    
    /* Bottom action bars and drawer safety margins */
    .quiz-actions,
    .session-actions,
    .checkout-actions,
    .reader-toolbar,
    .materi-toolbar,
    .bubub-ai-compose,
    .pro-dock {
        padding-bottom: calc(12px + env(safe-area-inset-bottom)) !important;
    }
    
    /* Dynamic margins for Bubub Widget with safe bottom margin */
    .bubub-ai-widget {
        bottom: max(20px, env(safe-area-inset-bottom)) !important;
        right: max(20px, env(safe-area-inset-right)) !important;
    }
    
    /* Menu Drawer notch safety */
    .mobile-menu-drawer {
        padding-top: max(24px, env(safe-area-inset-top)) !important;
        padding-bottom: max(24px, env(safe-area-inset-bottom)) !important;
        padding-left: max(24px, env(safe-area-inset-left)) !important;
        padding-right: max(24px, env(safe-area-inset-right)) !important;
    }
}

/* 5. Prevent Text Selection on Rapid Tap-Heavy Gameplay Elements */
.btn,
button,
.nav-links a,
.mobile-menu-links a,
.tool-chip,
.chat-suggest-chip,
.bubub-ai-chip,
.choice-card,
.option-item,
.option-card,
.user-nav-badge,
.dropdown-item,
.action-button,
.question-jump,
[role="button"] {
    -webkit-user-select: none !important;
    user-select: none !important;
    -webkit-touch-callout: none !important; /* Disable native iOS copy menu callout */
}

/* 6. Active State Scale-Down Feedback (Native tactile feel) */
.btn:active,
.choice-card:active,
.option-item:active,
.action-button:active,
.question-jump:active,
.user-nav-badge:active {
    transform: scale(0.96) !important;
    transition: transform 0.08s ease !important;
}