/* ============================================
   GEMINI-STYLE MOBILE APP UI
   Professional, Clean, Real App Experience
   ============================================ */

/* ===== MOBILE-FIRST BASE STYLES ===== */
@media (max-width: 768px) {
    /* Root Variables for Mobile */
    :root {
        --mobile-nav-height: 60px;
        --mobile-input-height: 70px;
        --mobile-header-height: 56px;
        --mobile-spacing: 16px;
        --mobile-radius: 24px;
        --safe-area-bottom: env(safe-area-inset-bottom, 0px);
    }

    /* Reset body for app-like feel */
    body {
        display: flex;
        flex-direction: column;
        height: 100vh;
        height: 100dvh; /* Dynamic viewport height for mobile */
        overflow: hidden;
        -webkit-overflow-scrolling: touch;
    }

    /* Hide sidebar on mobile */
    .sidebar {
        position: fixed;
        left: -100%;
        width: 85%;
        max-width: 320px;
        height: 100%;
        z-index: 1000;
        transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 4px 0 25px rgba(0, 0, 0, 0.3);
    }

    .sidebar.active {
        left: 0;
    }

    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.6);
        z-index: 999;
        backdrop-filter: blur(4px);
    }

    .sidebar-overlay.active {
        display: block;
    }

    .sidebar-close-btn {
        display: flex !important;
        position: absolute;
        top: 12px;
        right: 12px;
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: var(--bg-hover);
        border: none;
        color: var(--text-primary);
        font-size: 18px;
        cursor: pointer;
        align-items: center;
        justify-content: center;
        z-index: 10;
    }

    /* ===== MAIN CONTENT LAYOUT ===== */
    .main-content {
        display: flex;
        flex-direction: column;
        height: 100vh;
        height: 100dvh;
        overflow: hidden;
        padding: 0 !important;
        margin: 0 !important;
    }

    /* ===== HEADER - Gemini Style ===== */
    .header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: var(--mobile-header-height);
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 12px !important;
        background: var(--bg-primary);
        border-bottom: 1px solid var(--border-subtle);
        z-index: 100;
        gap: 8px;
    }

    .mobile-menu-btn {
        display: flex !important;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: transparent;
        border: none;
        color: var(--text-primary);
        font-size: 20px;
        cursor: pointer;
        align-items: center;
        justify-content: center;
        transition: background 0.2s;
    }

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

    .header-center {
        flex: 1;
        display: flex !important;
        align-items: center;
        justify-content: center;
        position: static !important;
        transform: none !important;
    }

    .brain-btn {
        width: 40px;
        height: 40px;
        padding: 0;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .header-brain-icon {
        font-size: 22px;
    }

    /* Hide desktop nav links on mobile */
    .header-actions {
        display: none !important;
    }

    .settings-btn {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: transparent;
        border: none;
        font-size: 18px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .settings-btn:active {
        background: var(--bg-hover);
    }

    /* ===== MODE SELECTOR - Gemini Pills ===== */
    .mode-selector {
        position: fixed;
        top: var(--mobile-header-height);
        left: 0;
        right: 0;
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 8px;
        padding: 10px 16px;
        background: var(--bg-primary);
        border-bottom: 1px solid var(--border-subtle);
        z-index: 99;
        overflow-x: auto;
        scrollbar-width: none;
    }

    .mode-selector::-webkit-scrollbar {
        display: none;
    }

    .mode-tab {
        padding: 8px 16px;
        border-radius: 20px;
        font-size: 14px;
        font-weight: 500;
        white-space: nowrap;
        background: var(--bg-secondary);
        border: 1px solid var(--border-subtle);
        color: var(--text-secondary);
        transition: all 0.2s;
    }

    .mode-tab.active {
        background: var(--primary-500);
        color: white;
        border-color: var(--primary-500);
    }

    .mode-tab i {
        margin-right: 6px;
    }

    /* ===== CHAT CONTAINER ===== */
    .chat-container {
        flex: 1;
        overflow-y: auto;
        overflow-x: hidden;
        padding-top: calc(var(--mobile-header-height) + 50px);
        padding-bottom: calc(var(--mobile-input-height) + var(--mobile-nav-height) + 20px);
        -webkit-overflow-scrolling: touch;
        scroll-behavior: smooth;
        width: 100%;
        max-width: 100%;
    }

    /* ===== WELCOME SCREEN - Gemini Style ===== */
    .welcome-screen {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding: 20px 20px 40px;
        min-height: 100%;
        text-align: center;
    }

    .welcome-header {
        margin-bottom: 24px;
    }

    #welcomeTitle,
    .welcome-content h1 {
        font-size: 26px !important;
        font-weight: 600;
        line-height: 1.3;
        color: var(--text-primary);
        margin: 0;
    }

    /* ===== JARVIS ORB - Gemini-like Animation ===== */
    .jarvis-orb-minimal {
        width: 120px !important;
        height: 120px !important;
        margin: 20px auto 30px !important;
        position: relative;
        display: flex !important;
        align-items: center;
        justify-content: center;
    }

    .orb-core {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--primary-500), #8b5cf6);
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: 
            0 0 40px rgba(59, 130, 246, 0.4),
            0 0 80px rgba(59, 130, 246, 0.2);
        animation: orbPulse 3s ease-in-out infinite;
    }

    @keyframes orbPulse {
        0%, 100% {
            transform: scale(1);
            box-shadow: 
                0 0 40px rgba(59, 130, 246, 0.4),
                0 0 80px rgba(59, 130, 246, 0.2);
        }
        50% {
            transform: scale(1.05);
            box-shadow: 
                0 0 60px rgba(59, 130, 246, 0.5),
                0 0 100px rgba(59, 130, 246, 0.3);
        }
    }

    .orb-text {
        font-size: 12px !important;
        font-weight: 700;
        color: white;
        text-align: center;
        letter-spacing: 1px;
    }

    /* ===== ACTION CHIPS - Gemini Style ===== */
    .action-chips {
        display: flex !important;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
        padding: 0 16px;
        margin-top: 10px;
        width: 100%;
        max-width: 400px;
    }

    .chip {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 14px 20px !important;
        background: linear-gradient(135deg, var(--primary-600), var(--primary-700)) !important;
        border: 2px solid var(--primary-500) !important;
        border-radius: 16px !important;
        font-size: 15px !important;
        font-weight: 600;
        color: white !important;
        cursor: pointer;
        transition: all 0.3s;
        white-space: nowrap;
        box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3) !important;
    }

    .chip:active {
        background: linear-gradient(135deg, var(--primary-700), var(--primary-800)) !important;
        transform: scale(0.97);
        box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4) !important;
    }

    .chip i {
        font-size: 18px;
        color: white;
    }

    /* Action chips container */
    .action-chips {
        display: flex !important;
        flex-wrap: wrap !important;
        justify-content: center !important;
        gap: 12px !important;
        padding: 20px 16px !important;
        margin-bottom: 20px !important;
        background: rgba(59, 130, 246, 0.05) !important;
        border-radius: 16px !important;
    }

    /* ===== MESSAGES AREA - Clean Chat Bubbles ===== */
    .messages-area {
        padding: 16px;
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .message {
        display: flex;
        gap: 12px;
        animation: messageIn 0.3s ease-out;
    }

    @keyframes messageIn {
        from {
            opacity: 0;
            transform: translateY(12px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .message-avatar {
        width: 32px;
        height: 32px;
        border-radius: 50%;
        flex-shrink: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
    }

    .message.user .message-avatar {
        background: var(--primary-500);
        color: white;
    }

    .message.ai .message-avatar {
        background: linear-gradient(135deg, var(--primary-500), #8b5cf6);
        color: white;
    }

    .message-content {
        flex: 1;
        font-size: 15px;
        line-height: 1.6;
        min-width: 0;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .message.user .message-content {
        background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
        color: white;
        padding: 12px 16px;
        border-radius: 18px 18px 4px 18px; /* Realistic bubble tail */
        max-width: 80%;
        box-shadow: 0 2px 8px rgba(59, 130, 246, 0.25);
        word-wrap: break-word;
    }

    .message.ai .message-content {
        background: var(--bg-secondary);
        color: var(--text-primary);
        padding: 12px 16px;
        border-radius: 18px 18px 18px 4px; /* Realistic bubble tail on opposite side */
        max-width: 85%;
        box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
        word-wrap: break-word;
    }

    /* Code blocks in messages */
    .message-content pre {
        background: var(--bg-tertiary);
        border-radius: 12px;
        padding: 14px;
        overflow-x: auto;
        font-size: 13px;
        margin: 12px 0;
    }

    .message-content code {
        font-family: 'JetBrains Mono', monospace;
        font-size: 13px;
    }

    /* ===== INPUT AREA - Gemini Floating Style ===== */
    .input-area {
        position: fixed !important;
        bottom: calc(var(--mobile-nav-height) + var(--safe-area-bottom)) !important;
        left: 0 !important;
        right: 0 !important;
        padding: 12px 16px !important;
        background: var(--bg-primary) !important;
        border-top: 1px solid var(--border-subtle) !important;
        z-index: 100 !important;
    }

    .input-container {
        display: flex !important;
        align-items: center !important;
        gap: 8px !important;
        padding: 8px 12px !important;
        background: var(--bg-secondary) !important;
        border: 1px solid var(--border-default) !important;
        border-radius: 28px !important;
        transition: border-color 0.2s, box-shadow 0.2s;
        max-width: 100% !important;
        width: 100% !important;
        margin: 0 !important;
    }

    .input-container:focus-within {
        border-color: var(--primary-500);
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
    }

    /* Model dropdown - Compact */
    .model-dropdown {
        flex-shrink: 0;
    }

    .model-dropdown-btn {
        display: flex;
        align-items: center;
        gap: 4px;
        padding: 6px 10px;
        background: var(--bg-hover);
        border: none;
        border-radius: 16px;
        font-size: 12px;
        font-weight: 500;
        color: var(--text-primary);
        cursor: pointer;
        white-space: nowrap;
    }

    .model-dropdown-btn .model-icon {
        font-size: 14px;
    }

    .model-dropdown-btn .model-name {
        max-width: 50px;
        overflow: hidden;
        text-overflow: ellipsis;
        font-size: 11px;
    }

    .model-dropdown-btn .fa-chevron-down {
        display: none;
    }

    /* Input icons */
    .input-icon-btn {
        width: 36px !important;
        height: 36px !important;
        min-width: 36px !important;
        border-radius: 50% !important;
        background: transparent !important;
        border: none !important;
        color: var(--text-secondary) !important;
        font-size: 16px !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        cursor: pointer;
        transition: background 0.2s, color 0.2s;
        flex-shrink: 0;
    }

    .input-icon-btn:active {
        background: var(--bg-hover) !important;
        color: var(--primary-500) !important;
    }

    .input-divider {
        display: none !important;
    }

    /* Message Input Textarea */
    #messageInput,
    textarea#messageInput {
        flex: 1 !important;
        min-width: 0 !important;
        min-height: 40px !important;
        max-height: 120px !important;
        height: auto !important;
        padding: 10px 8px !important;
        font-size: 16px !important; /* Prevents iOS zoom */
        line-height: 1.4 !important;
        resize: none !important;
        background: transparent !important;
        border: none !important;
        outline: none !important;
        color: var(--text-primary) !important;
    }

    #messageInput::placeholder {
        color: var(--text-tertiary);
        font-size: 15px;
    }

    /* Send Button - Gemini Style */
    .send-btn {
        width: 40px !important;
        height: 40px !important;
        min-width: 40px !important;
        border-radius: 50% !important;
        background: var(--primary-500) !important;
        border: none !important;
        color: white !important;
        font-size: 16px !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        cursor: pointer;
        transition: transform 0.2s, background 0.2s;
        flex-shrink: 0;
    }

    .send-btn:active {
        transform: scale(0.92);
        background: var(--primary-600) !important;
    }

    .send-btn:disabled {
        background: var(--bg-hover) !important;
        color: var(--text-tertiary) !important;
    }

    /* Mic button */
    .mic-btn {
        width: 36px !important;
        height: 36px !important;
        min-width: 36px !important;
    }

    .mic-btn.active {
        background: #ef4444 !important;
        color: white !important;
        animation: micPulse 1.5s ease-in-out infinite;
    }

    @keyframes micPulse {
        0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.5); }
        50% { box-shadow: 0 0 0 12px rgba(239, 68, 68, 0); }
    }

    /* Input footer - hide */
    .input-footer {
        display: none !important;
    }

    /* Image preview */
    .image-preview-container {
        position: fixed;
        bottom: calc(var(--mobile-nav-height) + var(--mobile-input-height) + 10px);
        left: 16px;
        right: 16px;
        z-index: 101;
        display: none;
    }

    .image-preview-container[style*="display: flex"],
    .image-preview-container:not([style*="display: none"]) {
        display: flex !important;
    }

    .image-preview-wrapper {
        position: relative;
        max-width: 100px;
        border-radius: 12px;
        overflow: hidden;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    }

    .image-preview-wrapper img {
        width: 100%;
        height: auto;
        display: block;
    }

    .remove-image-btn {
        position: absolute;
        top: 4px;
        right: 4px;
        width: 24px;
        height: 24px;
        border-radius: 50%;
        background: rgba(0, 0, 0, 0.7);
        border: none;
        color: white;
        font-size: 12px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* ===== BOTTOM NAVIGATION - App Style ===== */
    .bottom-nav {
        position: fixed !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        height: var(--mobile-nav-height) !important;
        padding-bottom: var(--safe-area-bottom) !important;
        background: var(--bg-primary) !important;
        border-top: 1px solid var(--border-subtle) !important;
        display: flex !important;
        align-items: center !important;
        justify-content: space-around !important;
        z-index: 101 !important;
    }

    .bottom-nav .nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 4px;
        padding: 8px 12px;
        color: var(--text-tertiary);
        text-decoration: none;
        font-size: 11px;
        font-weight: 500;
        transition: color 0.2s;
        min-width: 56px;
    }

    .bottom-nav .nav-item i {
        font-size: 20px;
    }

    .bottom-nav .nav-item.active {
        color: var(--primary-500);
    }

    .bottom-nav .nav-item:active {
        opacity: 0.7;
    }

    /* ===== TYPING INDICATOR ===== */
    .typing-indicator {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 16px;
        background: var(--bg-secondary);
        border-radius: 16px;
        max-width: fit-content;
    }

    .thinking-text {
        font-size: 14px;
        color: var(--text-secondary);
    }

    .typing-dot {
        width: 8px;
        height: 8px;
        background: var(--primary-500);
        border-radius: 50%;
        animation: typingBounce 1.2s ease-in-out infinite;
    }

    /* ===== MODALS - Full Screen Mobile ===== */
    .settings-modal-content {
        width: 100% !important;
        max-width: none !important;
        height: 100% !important;
        max-height: none !important;
        border-radius: 0 !important;
        margin: 0 !important;
    }

    .voice-commit-container {
        width: 100% !important;
        max-width: none !important;
        height: 100% !important;
        max-height: none !important;
        border-radius: 0 !important;
        padding: 24px 20px !important;
    }

    /* ===== HIDE UNNECESSARY ELEMENTS ===== */
    .developer-credit,
    #jarvisOrb {
        display: none !important;
    }

    /* ===== SCROLLBAR HIDE ===== */
    .chat-container::-webkit-scrollbar,
    .messages-area::-webkit-scrollbar,
    .container::-webkit-scrollbar {
        display: none;
    }

    .chat-container,
    .messages-area,
    .container {
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
}

/* ===== EXTRA SMALL SCREENS (iPhone SE, etc.) ===== */
@media (max-width: 375px) {
    #welcomeTitle,
    .welcome-content h1 {
        font-size: 22px !important;
    }

    .jarvis-orb-minimal {
        width: 100px !important;
        height: 100px !important;
    }

    .chip {
        padding: 10px 14px !important;
        font-size: 13px !important;
    }

    .action-chips {
        gap: 8px;
    }

    .model-dropdown-btn .model-name {
        display: none !important;
    }

    .bottom-nav .nav-item {
        min-width: 48px;
        padding: 8px 8px;
        font-size: 10px;
    }

    .bottom-nav .nav-item i {
        font-size: 18px;
    }
}

/* ===== LANDSCAPE MODE ===== */
@media (max-width: 768px) and (orientation: landscape) {
    .welcome-screen {
        padding: 16px 24px 32px;
    }

    .jarvis-orb-minimal {
        width: 80px !important;
        height: 80px !important;
        margin: 12px auto 16px !important;
    }

    #welcomeTitle {
        font-size: 22px !important;
    }

    .action-chips {
        max-width: 500px;
    }

    .chat-container {
        padding-top: calc(var(--mobile-header-height) + 45px);
    }
}

/* ===== TOUCH DEVICE OPTIMIZATIONS ===== */
@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    .chip,
    .mode-tab,
    .input-icon-btn,
    .send-btn,
    .bottom-nav .nav-item {
        min-height: 44px;
    }

    /* Remove hover effects - use active states */
    .chip:hover,
    .mode-tab:hover,
    .input-icon-btn:hover {
        background: inherit;
        color: inherit;
    }

    /* Active feedback */
    .chip:active,
    .mode-tab:active,
    .input-icon-btn:active {
        transform: scale(0.96);
        opacity: 0.85;
    }
}

/* ===== DARK THEME ADJUSTMENTS ===== */
@media (max-width: 768px) {
    [data-theme="chatgpt-pro"] .input-container,
    [data-theme="default"] .input-container {
        background: var(--bg-tertiary) !important;
    }

    [data-theme="chatgpt-pro"] .chip,
    [data-theme="default"] .chip {
        background: var(--bg-tertiary) !important;
    }
}

/* ===== PWA / Standalone Mode ===== */
@media (display-mode: standalone) {
    body {
        padding-top: env(safe-area-inset-top);
    }

    .header {
        padding-top: env(safe-area-inset-top) !important;
        height: calc(var(--mobile-header-height) + env(safe-area-inset-top));
    }

    .bottom-nav {
        padding-bottom: calc(var(--safe-area-bottom) + 10px) !important;
    }
}