/**
 * Mobile Override CSS
 * Mobile-specific styles and overrides for ChatBinder
 */

/* ========== MOBILE MENU BUTTON ========== */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px;
    margin-right: 8px;
    border-radius: 6px;
    transition: background-color 0.2s;
}

.mobile-menu-btn:hover {
    background-color: var(--bg-hover);
}

.mobile-menu-btn:active {
    background-color: var(--bg-tertiary);
}

/* ========== SIDEBAR OVERLAY ========== */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.sidebar-overlay.visible {
    opacity: 1;
    visibility: visible;
}

/* ========== MOBILE SEARCH TOGGLE ========== */
.thread-search-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: background-color 0.2s;
    flex-shrink: 0;
}

.thread-search-toggle:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

/* ========== RESPONSIVE LAYOUTS ========== */
@media (max-width: 768px) {
    /* Show mobile menu button */
    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* Hide logo text on very small screens */
    .nav-logo span {
        display: none;
    }

    /* Adjust top nav padding */
    .top-nav {
        padding: 0 12px;
    }

    /* Nav tabs - reduce size */
    .nav-tab {
        padding: 6px 10px;
        font-size: 13px;
        gap: 6px;
    }

    .nav-tab span {
        display: none;
    }

    .nav-tab svg {
        display: flex;
    }

    /* Panel - full screen on mobile */
    .panel-content {
        width: 100%;
        max-width: 100%;
        border-left: none;
    }

    /* Modal - adjust for mobile */
    .modal-content {
        min-width: auto;
        width: 90%;
        max-width: 90%;
        margin: 20px;
    }

    /* Date filter dialog */
    .modal-content[style*="min-width: 420px"] {
        min-width: 90% !important;
        width: 90% !important;
    }

    /* Folder headers - improve touch targets */
    .folder-header {
        padding: 14px 12px;
    }

    /* Conversation items - better touch targets */
    .conversation-item {
        padding: 14px 12px;
        min-height: 48px;
    }

    /* Sidebar footer buttons */
    .footer-btn {
        padding: 14px 12px;
        min-height: 48px;
    }

    /* Show search toggle */
    .thread-search-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* Adjust thread search container for mobile */
    .thread-search-container {
        padding: 8px 12px;
        gap: 8px;
        flex-wrap: nowrap;
        align-items: center;
    }

    /* Hide thread search toggle button (old version) */
    .thread-search-toggle {
        display: none !important;
    }

    /* Adjust thread search container for mobile - hide by default */
    .thread-search-container {
        padding: 0;
        gap: 0;
        flex-wrap: nowrap;
        align-items: stretch;
        border-bottom: none;
    }

    /* Hide thread search by default on mobile */
    .thread-search {
        display: none;
        position: absolute;
        top: 50px; /* Below chat header */
        left: 0;
        right: 0;
        z-index: 100;
        background-color: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        padding: 12px;
        flex-direction: row;
        gap: 8px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }

    /* Show search when active */
    .thread-search.active {
        display: flex;
    }

    /* Hide question navigator from top bar on mobile - moved to bottom nav */
    .thread-search-container .question-navigator {
        display: none !important;
    }

    /* ========== MOBILE BOTTOM NAVIGATION ========== */
    /* Mobile bottom nav container */
    .mobile-bottom-nav {
        display: none;
    }

    .chat-view::after {
        content: '';
        display: block;
        height: 60px;
        flex-shrink: 0;
    }
}

/* ========== MOBILE BOTTOM NAVIGATION BAR ========== */
@media (max-width: 768px) {
    /* Mobile bottom nav */
    .mobile-bottom-nav {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background-color: var(--bg-secondary);
        border-top: 1px solid var(--border-color);
        padding: 8px 12px;
        gap: 8px;
        align-items: center;
        justify-content: center;
        z-index: 50;
        box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.1);
    }

    .mobile-bottom-nav .question-navigator {
        display: flex;
        flex: 1;
        max-width: none;
        width: 100%;
    }

    .mobile-bottom-nav .question-select {
        flex: 1;
        min-width: 0;
        max-width: none;
    }

    .mobile-bottom-nav .question-nav-btn {
        flex-shrink: 0;
    }

    /* Add spacing to messages container to account for bottom nav */
    .messages-container {
        padding-bottom: 70px;
    }

    /* Upload state - adjust padding */
    .upload-state {
        padding: 20px 0;
    }

    .landing-title h1 {
        font-size: 28px;
    }

    .landing-subtitle {
        font-size: 16px;
    }

    .upload-box {
        padding: 30px 20px;
        margin: 0 10px;
    }

    .upload-box h2 {
        font-size: 20px;
    }

    /* Chat header - adjust for mobile */
    .chat-header {
        padding: 6px 8px;
        gap: 6px;
        min-height: 50px;
        flex-wrap: nowrap;
    }

    /* Chat header actions container */
    .chat-header-actions {
        display: flex;
        align-items: center;
        gap: 4px;
        flex-shrink: 0;
    }

    /* Mobile search icon button in header */
    .mobile-search-icon-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        background: none;
        border: none;
        color: var(--text-secondary);
        cursor: pointer;
        padding: 8px;
        border-radius: 6px;
        transition: background-color 0.2s;
    }

    .mobile-search-icon-btn:hover {
        background-color: var(--bg-hover);
        color: var(--text-primary);
    }

    .mobile-search-icon-btn svg {
        width: 20px;
        height: 20px;
    }

    .sidebar-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 6px;
    }

    .thread-title-input {
        font-size: 15px;
        padding: 4px 6px;
    }

    .edit-title-btn {
        padding: 4px;
    }

    .delete-thread-btn {
        padding: 6px 10px;
        font-size: 12px;
    }

    /* Delete thread button text - hide on very small screens */
    .delete-thread-btn {
        display: flex;
        align-items: center;
        gap: 4px;
    }

    /* On very small screens, hide delete button text */
    @media (max-width: 400px) {
        .delete-thread-btn {
            font-size: 0;
            padding: 8px;
        }

        .delete-thread-btn svg {
            display: block;
        }
    }

    /* Context menus - position better on mobile */
    .context-menu {
        max-width: 200px;
    }

    /* Star icon size */
    .star-icon {
        padding: 4px;
        min-width: 32px;
        min-height: 32px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* Buttons - improve touch targets */
    button, .nav-tab, .panel-btn, .modal-btn {
        min-height: 44px;
        min-width: 44px;
    }

    /* Input fields - ensure readable font size (no zoom on iOS) */
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="date"],
    select,
    textarea {
        font-size: 16px !important;
    }

    /* New folder dialog */
    .preset-colors {
        justify-content: center;
    }

    .color-option {
        width: 40px;
        height: 40px;
    }

    /* Sidebar controls - stack on mobile */
    .sidebar-controls {
        flex-wrap: wrap;
    }

    .sort-select {
        min-width: 100%;
    }

    .filter-btn,
    .new-folder-btn {
        flex: 1;
    }
}

/* ========== SMALL MOBILE PHONES ========== */
@media (max-width: 480px) {
    /* Nav tabs - further reduce */
    .nav-tab {
        padding: 6px 8px;
    }

    /* Chat header */
    .thread-title-input {
        font-size: 15px;
        max-width: 150px;
    }

    /* Message containers - reduce padding */
    .message {
        padding: 20px 12px;
    }

    .message-content {
        gap: 12px;
    }

    .message-index {
        width: 28px;
        height: 28px;
        font-size: 13px;
    }

    /* User message bubbles - full width on small screens */
    .message.user .message-body {
        max-width: 85%;
    }

    /* Search nav controls - smaller */
    .search-nav-btn,
    .search-close-btn {
        width: 28px;
        height: 28px;
    }

    .search-nav-btn svg,
    .search-close-btn svg {
        width: 14px;
        height: 14px;
    }

    /* Question navigator - handled by mobile bottom nav, not needed here */

    /* Thinking sections */
    .thinking-toggle {
        padding: 10px 12px;
        font-size: 13px;
    }

    /* Message actions */
    .message-actions {
        font-size: 12px;
        gap: 6px;
    }

    .model-badge {
        padding: 4px 8px;
        font-size: 11px;
    }

    .message-action-btn {
        padding: 6px 10px;
        font-size: 12px;
    }
}

/* ========== LANDSCAPE MOBILE ========== */
@media (max-width: 768px) and (orientation: landscape) {
    /* Reduce vertical spacing in landscape */
    .upload-state {
        padding: 10px 0;
    }

    .landing-title {
        margin-bottom: 5px;
    }

    .landing-title h1 {
        font-size: 22px;
        margin-bottom: 8px;
    }

    .landing-subtitle {
        font-size: 14px;
    }

    .upload-box {
        padding: 20px;
    }

    /* Chat header - compact */
    .chat-header {
        padding: 6px 10px;
    }

    /* Messages - compact */
    .message {
        padding: 15px 10px;
    }

    /* Thread search - compact */
    .thread-search-container {
        padding: 8px 10px;
    }

    /* Modal - adjust */
    .modal-content {
        margin: 10px;
        max-height: 90vh;
        overflow-y: auto;
    }
}

/* ========== DYNAMIC VIEWPORT HEIGHT (Mobile browsers) ========== */
@supports (height: 100dvh) {
    body {
        height: 100dvh;
    }

    .app-container {
        height: calc(100dvh - var(--nav-height));
    }

    .sidebar {
        height: 100dvh;
    }

    /* Modal - use dvh */
    .modal {
        height: 100dvh;
    }

    /* Tab panels - use dvh */
    .tab-panel {
        top: var(--nav-height);
        height: calc(100dvh - var(--nav-height));
    }
}

/* ========== TABLES - Mobile Responsive ========== */
@media (max-width: 768px) {
    .message-text table {
        font-size: 14px;
        display: block;
        overflow-x: auto;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
    }

    .message-text th,
    .message-text td {
        padding: 8px 10px;
        font-size: 13px;
    }

    .message-text table {
        border-radius: 6px;
        border: 1px solid var(--border-color);
    }
}

/* ========== CODE BLOCKS - Mobile Responsive ========== */
@media (max-width: 768px) {
    .message-text pre {
        padding: 12px;
        font-size: 13px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        border-radius: 6px;
    }

    .message-text code {
        font-size: 13px;
    }
}

/* ========== HEADINGS - Mobile Responsive ========== */
@media (max-width: 768px) {
    .message-text h1 {
        font-size: 26px;
        margin-top: 18px;
        margin-bottom: 12px;
    }

    .message-text h2 {
        font-size: 22px;
        margin-top: 16px;
        margin-bottom: 10px;
    }

    .message-text h3 {
        font-size: 20px;
        margin-top: 14px;
        margin-bottom: 10px;
    }

    .message-text h4 {
        font-size: 18px;
        margin-top: 12px;
        margin-bottom: 8px;
    }

    .message-text h5,
    .message-text h6 {
        font-size: 16px;
        margin-top: 10px;
        margin-bottom: 8px;
    }
}

/* ========== LISTS - Mobile Responsive ========== */
@media (max-width: 768px) {
    .message-text ul,
    .message-text ol {
        margin: 12px 0;
        padding-left: 24px;
    }

    .message-text li {
        margin-bottom: 6px;
    }
}

/* ========== TOUCH FEEDBACK ========== */
@media (hover: none) and (pointer: coarse) {
    /* Remove hover effects on touch devices */
    .nav-tab:hover,
    .conversation-item:hover,
    .folder-header:hover,
    .button:hover,
    input:hover,
    select:hover {
        background-color: transparent;
    }

    /* Add active states for touch */
    .nav-tab:active {
        background-color: var(--bg-hover);
        transform: scale(0.98);
    }

    .conversation-item:active {
        background-color: var(--bg-hover);
    }

    .folder-header:active {
        background-color: var(--bg-hover);
    }
}

/* ========== PRINT STYLES - Include Mobile Considerations ========== */
@media print {
    .mobile-menu-btn,
    .sidebar-overlay,
    .sidebar-toggle,
    .thread-search-toggle,
    .top-nav,
    .thread-search-container {
        display: none !important;
    }

    .sidebar {
        display: none !important;
    }

    .main-content {
        margin-left: 0 !important;
    }

    .message {
        page-break-inside: avoid;
    }

    .pair-container {
        page-break-inside: avoid;
    }
}

/* ========== ACCESSIBILITY - Focus Visible ========== */
@media (max-width: 768px) {
    /* Ensure focus states are visible on mobile */
    button:focus-visible,
    a:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible {
        outline: 2px solid var(--accent-color);
        outline-offset: 2px;
    }

    /* High contrast mode support */
    @media (prefers-contrast: high) {
        .sidebar-overlay {
            background-color: rgba(0, 0, 0, 0.8);
        }
    }
}

/* ========== REDUCED MOTION ========== */
@media (prefers-reduced-motion: reduce) {
    .sidebar-overlay {
        transition: opacity 0.1s ease, visibility 0.1s ease;
    }

    .sidebar {
        transition: transform 0.1s ease;
    }

    .folder-arrow {
        transition: transform 0.1s ease;
    }
}