* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --bg-color: #f5f5f5;
            --card-bg: #ffffff;
            --text-color: #333;
            --border-color: #e0e0e0;
            --primary-color: #ff8a50;
            --primary-hover: #ff7043;
            --secondary-color: #666;
            --success-color: #10b981;
            --error-color: #ef4444;
            --shadow: 0 10px 25px rgba(0,0,0,0.15);
            --gradient: linear-gradient(135deg, #ff8a50 0%, #ff7043 100%);
        }

        [data-theme="dark"] {
            --bg-color: #1a1a1a;
            --card-bg: #2d2d2d;
            --text-color: #ffffff;
            --border-color: #444;
            --secondary-color: #aaa;
            --shadow: 0 10px 25px rgba(0,0,0,0.3);
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: var(--bg-color);
            color: var(--text-color);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow-x: hidden;
        }

        /* Animated Background */
        .bg-animation {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            opacity: 0.1;
        }

        .floating-shape {
            position: absolute;
            background: var(--gradient);
            border-radius: 50%;
            animation: float 6s ease-in-out infinite;
        }

        .floating-shape:nth-child(1) {
            width: 80px;
            height: 80px;
            top: 20%;
            left: 10%;
            animation-delay: 0s;
        }

        .floating-shape:nth-child(2) {
            width: 60px;
            height: 60px;
            top: 60%;
            right: 20%;
            animation-delay: 2s;
        }

        .floating-shape:nth-child(3) {
            width: 100px;
            height: 100px;
            bottom: 20%;
            left: 20%;
            animation-delay: 4s;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
        }

        /* Main Container */
        .auth-container {
            background: var(--card-bg);
            border-radius: 20px;
            box-shadow: var(--shadow);
            overflow: hidden;
            width: 100%;
            max-width: 900px;
            min-height: 500px;
            position: relative;
            margin: 20px;
        }

        .auth-wrapper {
            display: flex;
            min-height: 500px;
        }

        /* Left Panel */
        .auth-panel {
            flex: 1;
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
        }

        .auth-panel.left {
            background: var(--gradient);
            color: white;
            text-align: center;
        }

        .welcome-content {
            z-index: 2;
            position: relative;
        }

        .logo-section {
            margin-bottom: 30px;
        }

        .logo-icon {
            font-size: 4rem;
            margin-bottom: 10px;
            display: block;
        }

        .logo-text {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .logo-subtitle {
            opacity: 0.9;
            font-size: 1rem;
        }

        .welcome-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .welcome-text {
            opacity: 0.9;
            line-height: 1.6;
            margin-bottom: 30px;
        }

        .switch-btn {
            background: transparent;
            border: 2px solid rgba(255,255,255,0.3);
            color: white;
            padding: 12px 30px;
            border-radius: 25px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .switch-btn:hover {
            background: rgba(255,255,255,0.1);
            border-color: rgba(255,255,255,0.5);
            transform: translateY(-2px);
        }

        /* Right Panel */
        .auth-panel.right {
            background: var(--card-bg);
        }

        .form-container {
            width: 100%;
            max-width: 400px;
            margin: 0 auto;
        }

        .form-header {
            text-align: center;
            margin-bottom: 30px;
        }

        .form-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-color);
        }

        .form-subtitle {
            color: var(--secondary-color);
        }

        /* Forms */
        .auth-form {
            display: none;
        }

        .auth-form.active {
            display: block;
            animation: slideIn 0.5s ease;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateX(30px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--text-color);
            font-size: 0.9rem;
        }

        .form-input {
            width: 100%;
            padding: 15px 20px;
            border: 2px solid var(--border-color);
            border-radius: 12px;
            font-size: 1rem;
            background: var(--card-bg);
            color: var(--text-color);
            transition: all 0.3s ease;
        }

        .form-input:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(255, 138, 80, 0.1);
        }

        .form-input.error {
            border-color: var(--error-color);
            box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
        }

        .error-message {
            color: var(--error-color);
            font-size: 0.8rem;
            margin-top: 5px;
            display: none;
        }

        .error-message.show {
            display: block;
        }

        .form-checkbox {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
        }

        .form-checkbox input[type="checkbox"] {
            width: 18px;
            height: 18px;
            accent-color: var(--primary-color);
        }

        .checkbox-label {
            font-size: 0.9rem;
            color: var(--secondary-color);
            cursor: pointer;
        }

        /* Buttons */
        .auth-btn {
            width: 100%;
            padding: 15px;
            border: none;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-bottom: 15px;
        }

        .auth-btn.primary {
            background: var(--gradient);
            color: white;
        }

        .auth-btn.primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 138, 80, 0.3);
        }

        .auth-btn.primary:disabled {
            opacity: 0.7;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }

        .google-btn {
            background: white;
            color: #333;
            border: 2px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

        .google-btn:hover {
            border-color: var(--primary-color);
            transform: translateY(-1px);
        }

        .google-icon {
            width: 20px;
            height: 20px;
        }

        .vk-btn {
            background: #4C75A3;
            color: white;
            border: 2px solid #4C75A3;
        }

        .vk-btn:hover {
            background: #3e5f87;
            border-color: #3e5f87;
            transform: translateY(-1px);
        }

        .vk-icon {
            width: 20px;
            height: 20px;
        }

        .divider {
            text-align: center;
            margin: 20px 0;
            position: relative;
            color: var(--secondary-color);
        }

        .divider::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 0;
            right: 0;
            height: 1px;
            background: var(--border-color);
            z-index: 1;
        }

        .divider span {
            background: var(--card-bg);
            padding: 0 20px;
            position: relative;
            z-index: 2;
            font-weight: 500;
        }

        .forgot-password {
            text-align: center;
            margin-top: 15px;
        }

        .forgot-password a {
            color: var(--primary-color);
            text-decoration: none;
            font-size: 0.9rem;
        }

        .forgot-password a:hover {
            text-decoration: underline;
        }

        /* Device Info */
        .device-info {
            background: rgba(255, 138, 80, 0.1);
            border: 1px solid rgba(255, 138, 80, 0.2);
            border-radius: 10px;
            padding: 15px;
            margin: 20px 0;
            font-size: 0.85rem;
        }

        .device-info h4 {
            color: var(--primary-color);
            margin-bottom: 8px;
            font-size: 0.9rem;
        }

        .device-info p {
            color: var(--secondary-color);
            margin-bottom: 5px;
        }

        /* Loading State */
        .loading {
            display: none;
            align-items: center;
            justify-content: center;
            gap: 10px;
            color: var(--secondary-color);
            font-size: 0.9rem;
        }

        .loading.show {
            display: flex;
        }

        .loading-spinner {
            width: 20px;
            height: 20px;
            border: 2px solid var(--border-color);
            border-top: 2px solid var(--primary-color);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        

        /* Back Button */
        .back-btn {
            position: absolute;
            top: 20px;
            left: 20px;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 10px 15px;
            color: var(--text-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.2s ease;
            z-index: 10;
        }

        .back-btn:hover {
            border-color: var(--primary-color);
            background: rgba(255, 138, 80, 0.05);
        }

        /* Mobile Responsive */
        @media (max-width: 768px) {
            .auth-container {
                margin: 10px;
                border-radius: 15px;
                max-height: 90vh;
                overflow-y: auto;
            }

            .auth-wrapper {
                flex-direction: column;
                min-height: auto;
            }

            .auth-panel {
                padding: 30px 20px;
            }

            .auth-panel.left {
                padding: 40px 20px 30px;
            }

            .logo-icon {
                font-size: 3rem;
            }

            .logo-text {
                font-size: 1.5rem;
            }

            .welcome-title {
                font-size: 1.3rem;
            }

            .form-title {
                font-size: 1.5rem;
            }
        }

        /* Success Animation */
        .success-animation {
            display: none;
            text-align: center;
            padding: 40px;
        }

        .success-animation.show {
            display: block;
            animation: fadeIn 0.5s ease;
        }

        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        .success-icon {
            font-size: 4rem;
            color: var(--success-color);
            margin-bottom: 20px;
            animation: bounce 0.6s ease;
        }

        @keyframes bounce {
            0%, 20%, 60%, 100% { transform: translateY(0); }
            40% { transform: translateY(-20px); }
            80% { transform: translateY(-10px); }
        }
        /* POPUP СТИЛИ (добавить в конец auth.css) */
#authPopup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

#authPopup .auth-container {
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

/* Google OAuth Popup Fix - высокий z-index для Google модалов */
iframe[src*="accounts.google.com"],
div[data-google-signin-button],
.google-signin-container,
[aria-label*="Google"],
[id*="credential_picker"],
[id*="g_id_signin"] {
    z-index: 99999 !important;
}

/* Глобальный фикс для всех Google компонентов */
.credential_picker_container,
.credential_picker_frame,
#credential_picker_container,
iframe[src*="gsi"],
iframe[src*="google"] {
    z-index: 99999 !important;
    position: fixed !important;
}

/* Усиленные фиксы для мобильных устройств (iPad, iPhone) */
@supports (-webkit-touch-callout: none) {
    /* Safari/iOS специфичные фиксы */
    div[id*="credential_picker"],
    iframe[src*="accounts.google.com"],
    div[data-google-signin],
    .google-signin-container {
        z-index: 999999 !important;
        position: fixed !important;
        -webkit-transform: translateZ(0) !important;
        transform: translateZ(0) !important;
    }
}

/* Дополнительные фиксы для WebKit браузеров */
@media (-webkit-min-device-pixel-ratio: 1) {
    iframe[name*="gsi"],
    iframe[id*="google"],
    div[aria-live="polite"] {
        z-index: 999999 !important;
        position: fixed !important;
        will-change: transform !important;
    }
}

/* Фикс для режима инкогнито и приватного браузинга */
iframe[src*="accounts.google.com/gsi"] {
    z-index: 999999 !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    max-width: none !important;
    max-height: none !important;
}

/* Дополнительный фикс для контейнера авторизации на мобильных */
@media screen and (max-width: 768px) {
    .credential_picker_container,
    div[id*="credential"],
    iframe[name*="a-"][src*="google"] {
        z-index: 999999 !important;
        position: fixed !important;
        top: 50% !important;
        left: 50% !important;
        transform: translate(-50%, -50%) !important;
        -webkit-transform: translate(-50%, -50%) !important;
    }
}

/* Исправление наложения на мобильных устройствах Apple */
@media screen and (max-device-width: 1024px) and (-webkit-min-device-pixel-ratio: 1) {
    .auth-overlay,
    #authPopup {
        -webkit-backface-visibility: hidden !important;
        backface-visibility: hidden !important;
        -webkit-perspective: 1000px !important;
        perspective: 1000px !important;
    }

    iframe[src*="accounts.google"] {
        z-index: 999999 !important;
        position: fixed !important;
        isolation: isolate !important;
    }
}