:root {
            --app-height: 100vh;
            --safe-bottom: env(safe-area-inset-bottom, 0px);
            --vv-bottom: 0px;
        }

        body {
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: var(--app-height);
            margin: 0;
        }

        .navbar {
            position: relative;
            flex-shrink: 0;
        }

        .chat-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 14px;
            margin: 4px 0;
            cursor: pointer;
            border-radius: 8px;
            color: var(--text-gray);
            transition: 0.2s;
            position: relative;
        }
        .chat-item:hover, .chat-item.active {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-light);
        }
        .chat-title {
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 170px;
            font-size: 0.9rem;
        }
        .chat-options-btn {
            opacity: 0;
            color: var(--text-gray);
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 4px;
            transition: 0.2s;
        }
        .chat-item:hover .chat-options-btn, .chat-item.active .chat-options-btn {
            opacity: 1;
        }
        .chat-options-btn:hover { color: white; }

        .options-dropdown {
            position: absolute;
            right: 10px;
            top: 35px;
            background: #252525;
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 8px;
            z-index: 100;
            display: none;
            flex-direction: column;
            min-width: 120px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.5);
        }
        .options-dropdown.show { display: flex; }
        .dropdown-item {
            padding: 8px 12px;
            font-size: 0.85rem;
            color: #ddd;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .dropdown-item:hover { background: rgba(255,255,255,0.1); }
        .dropdown-item.delete { color: #ff6b6b; }

        #profilePanel {
            background: black;
        }

        .chat-layout {
            display: flex;
            flex: 1;
            height: calc(100vh - 60px);
            position: relative;
            overflow: hidden;
        }

        .chat-sidebar {
            width: 260px;
            background: rgba(0, 0, 0, 0.4);
            border-right: 1px solid var(--glass-border);
            display: flex;
            flex-direction: column;
            padding: 1rem;
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }

        .new-chat-btn {
            background: var(--text-light);
            color: var(--text-dark);
            border: none;
            padding: 12px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            margin-bottom: 20px;
            transition: all 0.2s;
        }

        .new-chat-btn:hover {
            background: #e0e0e0;
            transform: translateY(-1px);
        }

        .history-label {
            color: var(--text-gray);
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 10px;
            font-weight: 600;
        }

        .history-list {
            display: flex;
            flex-direction: column;
            gap: 5px;
            flex: 1 0 auto;
            width: 100%;
        }

        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: transparent; }
        ::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 3px; }

        .chat-main {
            flex: 1;
            display: flex;
            flex-direction: column;
            position: relative;
            background: radial-gradient(circle at 50% 30%, rgba(16, 230, 204, 0.4), transparent 70%);
            height: 100%;
        }

        .chat-header {
            padding: 15px 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
        }

        .model-select-wrapper {
            position: relative;
            display: flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            padding: 4px 6px;
            border-radius: 999px;
            min-width: 180px;
        }

        .model-select-wrapper select {
            background: transparent;
            border: none;
            color: var(--text-light);
            outline: none;
            font-size: 0.95rem;
            cursor: pointer;
            appearance: none;
            padding-right: 22px;
            width: 100%;
        }

        .model-select-wrapper select option {
            color: #fff;
            background: black;
            border-radius: 8px;
            border: none;
        }

        .model-select-wrapper select:focus {
            box-shadow: 0 4px 16px rgba(0,0,0,0.4);
            border-radius: 16px;
        }
        
        .model-select-wrapper::after { display: none; }

        .custom-select {
            position: relative;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            border-radius: 8px;
            border: 1px solid rgba(255,255,255,0.08);
            background: rgba(255,255,255,0.02);
            min-width: 220px;
            color: #e6eef8;
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
            cursor: pointer;
            box-shadow: 0 6px 20px rgba(0,0,0,0.55), inset 0 1px 0 rgba(255,255,255,0.02);
            backdrop-filter: blur(4px);
            overflow: visible !important;
        }
        .custom-select .current-model-name { flex: 1; font-weight: 600; }
        .custom-select .caret { color: rgba(255,255,255,0.7); }

        .model-select-wrapper .fa-robot {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: rgba(16,230,204,0.04);
            color: #10e6cc;
            border: 1px solid rgba(16,230,204,0.06);
            font-size: 16px;
            flex-shrink: 0;
        }

        .custom-options {
            position: absolute;
            top: calc(100% + 8px);
            right: 0;
            left: 0;
            background: linear-gradient(180deg, #0f1416 0%, #070808 100%);
            border: 1px solid rgba(255,255,255,0.06);
            border-radius: 8px;
            margin: 0;
            padding: 6px 6px;
            list-style: none;
            box-shadow: 0 12px 40px rgba(0,0,0,0.7);
            max-height: 260px;
            overflow-y: auto;
            z-index: 200;
            display: none;
            backdrop-filter: blur(6px);
        }
        .custom-options.show {
        opacity: 1 !important;
        visibility: visible !important;
        transform: translateY(0) scale(1) !important;
        display: block !important;
}
        .custom-options li {
            padding: 8px 12px;
            border-radius: 6px;
            color: #cfe6ff;
            cursor: pointer;
            margin: 4px 0;
            font-size: 0.95rem;
            white-space: nowrap;
            transition: background 0.12s ease, color 0.12s ease;
        }
        .custom-options li:hover,
        .custom-options li.active {
            background: rgba(255,255,255,0.04);
            color: #ffffff;
        }
        .custom-options::-webkit-scrollbar { width: 8px; }
        .custom-options::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.06); border-radius: 6px; }

        .welcome-screen {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 2rem;
            animation: fadeIn 0.5s ease;
        }

        .welcome-logo {
            font-size: 4rem;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #fff, #aaa);
            background-clip: text;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .welcome-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 10px;
        }

        .welcome-subtitle {
            color: #e0e0e0;
            font-size: 1rem;
            max-width: 500px;
            margin-bottom: 3rem;
            line-height: 1.5;
        }

        .suggestions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
            width: 100%;
            max-width: 800px;
        }

        .suggestion-card {
            background: var(--glass-light);
            border: 1px solid var(--glass-border);
            padding: 1.5rem;
            border-radius: 16px;
            cursor: pointer;
            text-align: left;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .suggestion-card:hover {
            background: rgba(255,255,255,0.15);
            transform: translateY(-5px);
            border-color: rgba(255,255,255,0.3);
        }

        .suggestion-icon {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: #10e6cc;
        }

        .suggestion-text {
            font-size: 0.95rem;
            color: var(--text-gray);
            line-height: 1.4;
        }

        .messages-container {
            flex: 1;
            overflow-y: auto;
            padding: 2rem;
            display: none;
            flex-direction: column;
            gap: 1.5rem;
            scroll-behavior: smooth;
            max-width: 900px;
            margin: 0 auto;
            width: 100%;
        } 

        .message.user {
            align-self: flex-end;
            flex-direction: row-reverse;
        }

        .message-content {
            padding: 1rem 1.5rem;
            border-radius: 18px;
            line-height: 1.6;
            font-size: 1rem;
            word-wrap: break-word;
        }

        .message.error-message .message-content {
            background-color: rgba(231, 76, 60, 0.1);
            border: 1px solid #e74c3c;
            color: #ff6b6b;
        }

        .message.error-message i {
            margin-right: 8px;
            color: #e74c3c;
        }

        .user .message-content {
            background: var(--text-light);
            color: black;
            border-bottom-right-radius: 4px;
        }

        .bot .message-content {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--glass-border);
            color: var(--text-light);
            border-bottom-left-radius: 4px;
        }
        
        .bot .message-content img {
            max-width: 100%;
            border-radius: 10px;
            margin-top: 10px;
        }

        .avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            border: 1px solid var(--glass-border);
            font-size: 0.9rem;
        }
        
        #chatContainer {
            display: flex;
            flex-direction: column;
            flex-grow: 1;
            width: 100%;
            position: relative;
            overflow-y: auto;
        }

        #chatBox {
            flex-grow: 1;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            padding: 20px;
            gap: 15px;
            width: 100%;
        }

        .message {
            max-width: 80%;
            padding: 12px 16px;
            border-radius: 18px;
            line-height: 1.5;
            font-size: 15px;
            position: relative;
            word-wrap: break-word;
            display: flex;
            gap: 1rem;
            animation: messageAppear 0.3s ease-out forwards;
            transform: translateY(10px);
            will-change: transform, opacity;
            opacity: 0;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        @keyframes messageAppear {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .message-content:after {
            content: '●';
            display: inline-block;
            margin-left: 5px;
            animation: blink 1s infinite;
            color: var(--primary-color, #00ff6a);
        }

        .message:not(.streaming) .message-content:after {
            display: none;
        }

        @keyframes blink {
            0% { opacity: 1; }
            50% { opacity: 0; }
            100% { opacity: 1; }
        }

        .user-message {
            align-self: flex-end;
            background: #10e6cc;
            color: white;
            border-bottom-right-radius: 4px;
        }

        .bot-message {
            align-self: flex-start;
            background: #252525;
            color: #e0e0e0;
            border-bottom-left-radius: 4px;
            border: 1px solid #333;
            animation-duration: 0.4s;
        }

        .error-message {
            align-self: center;
            background: rgba(255, 82, 82, 0.1);
            color: #ff5252;
            border: 1px solid #ff5252;
            font-size: 13px;
            text-align: center;
            max-width: 60%;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .bot .avatar { background: rgba(16, 230, 204, 0.2); color: #10e6cc; }
        .user .avatar { background: var(--text-light); color: black; }

        .input-wrapper {
            flex-shrink: 0;
            padding: 1rem 2rem;
            max-width: 900px;
            margin: 0 auto;
            width: 100%;
            background: transparent;
            z-index: 10;
            position: relative;
        }

        .input-container {
            position: relative;
            background: rgba(30, 30, 30, 0.6);
            backdrop-filter: blur(10px);
            border: 1px solid var(--glass-border);
            border-radius: 24px;
            padding: 8px;
            display: flex;
            align-items: center;
            box-shadow: 0 4px 20px rgba(0,0,0,0.2);
            transition: border-color 0.3s;
        }

        .input-container:focus-within {
            border-color: rgba(255,255,255,0.3);
        }

        .chat-input {
            resize: none;
            flex: 1;
            background: transparent;
            border: none;
            color: var(--text-light);
            padding: 12px 20px;
            font-size: 1rem;
            outline: none;
            min-height: 50px;
            max-height: 200px;
            padding-top: 14px;
        }

        .send-btn {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            border: none;
            background: white;
            color: #111;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            flex-shrink: 0;
            transition: transform .2s, box-shadow .2s;
            position: relative;
            z-index: 2;
        }

        .send-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 0 15px rgba(255,255,255,0.3);
            color: inherit;
        }
        
        .send-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            transform: none;
        }

        .disclaimer {
            text-align: center;
            font-size: 0.75rem;
            color: rgba(255,255,255,0.3);
            margin-top: 10px;
        }

        .typing-indicator {
            display: none;
            padding: 10px 20px;
            margin-left: 50px;
            margin-bottom: 15px;
        }
        
        .dot {
            width: 6px;
            height: 6px;
            background: #fff;
            border-radius: 50%;
            display: inline-block;
            margin: 0 2px;
            animation: bounce 1.4s infinite ease-in-out both;
        }
        .dot:nth-child(1) { animation-delay: -0.32s; }
        .dot:nth-child(2) { animation-delay: -0.16s; }

        @keyframes slideIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .chat-input-wrapper {
            position: relative;
            display: flex;
            align-items: flex-end;
            gap: 10px;
            padding: 8px 15px;
            border-radius: 24px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .1);
            box-sizing: border-box;
            width: 100%;
        }

        .chat-input-wrapper:focus-within {
            border-color: #10e6cc;
            box-shadow: 0 0 15px rgba(16, 230, 204, 0.1);
        }

        .chat-textarea {
            flex: 1;
            background: transparent;
            border: none;
            outline: none;
            color: white;
            font-size: 1rem;
            resize: none;
            line-height: 1.4;
            padding: 8px 0;
            min-height: 24px;
            max-height: 160px;
            overflow-y: auto;
            box-sizing: border-box;
            display: block;
            white-space: pre-wrap;
            word-wrap: break-word;
        }

        .send-btn i {
            pointer-events: none;
        }

        #creditsBtn {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(10px);
            border-radius: 12px;
            padding: 6px 14px;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        #creditsBtn:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(255, 255, 255, 0.4);
        }

        #creditsBtn i {
            color: #00f2ff;
        }

        .streaming::after {
            content: '●';
            margin-left: 4px;
            color: #4a90e2;
            animation: blink 0.8s infinite;
        }

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0; }
        }

        /* Плавное появление новых абзацев */
        .message-content p {
            animation: fadeIn 0.3s ease-out forwards;
            margin-bottom: 0.5rem;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(2px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* Стиль для лоадера видео (более Senior вид) */
        .video-loading {
            display: flex;
            align-items: center;
            gap: 10px;
            font-style: italic;
            color: #888;
        }

        @keyframes coin-glow {
            from { filter: drop-shadow(0 0 2px rgba(255, 215, 0, 0.4)); }
            to { filter: drop-shadow(0 0 8px rgba(255, 215, 0, 0.8)); }
        }

/* Меню настроек Сайдбара */
/* --- Футер сайдбара --- */
.sidebar-footer {
    padding: 10px;
    margin-top: auto;
    position: relative;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.settings-wrapper {
    position: relative;
}

/* Кнопка меню в сайдбаре */
.sidebar-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: transparent;
    border: none;
    color: #ccc;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
    font-size: 14px;
    text-align: left;
}

.sidebar-btn:hover, .sidebar-btn.active {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.sidebar-btn i {
    width: 20px;
    text-align: center;
    font-size: 16px;
}

/* --- ВЫПЛЫВАЮЩЕЕ МЕНЮ --- */
.gemini-menu {
    position: absolute;
    bottom: 110%;
    left: 0;
    width: 240px;
    background: #1e1e1e;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 0px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
    z-index: 2000;
    
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px) scale(0.95);
    transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
    transform-origin: bottom left;
}

/* Состояние открытого меню */
.gemini-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* Пункты меню */
.gemini-menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    color: #e3e3e3;
    text-decoration: none;
    border-radius: 6px;
    font-size: 14px;
    transition: 0.2s;
    width: 100%;
    box-sizing: border-box;
}

.gemini-menu-item:hover {
    background: rgba(255, 255, 255, 0.08);
}

.gemini-menu-item i {
    width: 20px;
    height: 20px;
    color: #9aa0a6;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 900;
    flex-shrink: 0;
}

.menu-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 6px 0;
}

/* --- АДАПТАЦИЯ ПОД МИНИ-САЙДБАР --- */

/* Скрываем текст, оставляем иконки */
.sidebar-closed .link-text {
    display: none;
}

.sidebar-closed {
    display: none;
}

/* Центрируем иконку кнопки в мини-режиме */
.sidebar-closed .sidebar-btn {
    justify-content: center;
    padding: 12px 0;
}

.sidebar-closed .sidebar-btn i {
    margin: 0;
}

.sidebar-closed .sidebar-mini-preference-btn {
    justify-content: flex-start;
    padding: 12px;
}

.sidebar-closed .sidebar-mini-preference-btn i {
    margin: 0 2px 0 0;
}

.sidebar-closed .gemini-menu {
    left: 10px;
    bottom: 100%;
    width: 220px;
}

/* Light Theme Overrides */
[data-theme="light"] .sidebar-btn {
    color: #1f1f1f !important;
}

[data-theme="light"] .sidebar-btn:hover,
[data-theme="light"] .sidebar-btn.active {
    background: rgba(0, 0, 0, 0.05) !important;
    color: #000 !important;
}

[data-theme="light"] .sidebar-footer {
    border-top: 1px solid #e5e7eb !important;
}

[data-theme="light"] #creditsBtn {
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.15) !important;
    color: #1f1f1f !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06) !important;
}

[data-theme="light"] #creditsBtn:hover {
    background: #f8f9fa !important;
    border-color: rgba(0, 0, 0, 0.25) !important;
}

[data-theme="light"] #creditsBtn i {
    color: #ffd700 !important;
}

/* Chat Interface Light Theme Overrides */
[data-theme="light"] .chat-item:hover,
[data-theme="light"] .chat-item.active {
    background: rgba(0, 0, 0, 0.08) !important;
    color: #1f1f1f !important;
}

[data-theme="light"] .custom-select {
    border: 1px solid rgba(0, 0, 0, 0.12) !important;
    background: #ffffff !important;
    color: #1f1f1f !important;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08) !important;
}

[data-theme="light"] .custom-select .current-model-name {
    color: #1f1f1f !important;
}

[data-theme="light"] .custom-select .caret {
    color: rgba(0, 0, 0, 0.5) !important;
}

[data-theme="light"] .custom-options {
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.12) !important;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12) !important;
}

[data-theme="light"] .custom-options li {
    color: #1f1f1f !important;
}

[data-theme="light"] .custom-options li:hover,
[data-theme="light"] .custom-options li.active {
    background: rgba(0, 0, 0, 0.08) !important;
    color: #000 !important;
}

[data-theme="light"] .custom-options::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15) !important;
}

[data-theme="light"] .chat-input-wrapper {
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.12) !important;
}

[data-theme="light"] .chat-input-wrapper:focus-within {
    border-color: #10e6cc !important;
}