:root {
            --primary-color: #3a7bd5;
            --secondary-color: #00d2ff;
            --accent-color: #ff6b6b;
            --dark-color: #1a1a2e;
            --light-color: #f8f9fa;
        }
        
        body {
            font-family: 'Vazirmatn', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: #f8f9fa;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow-x: hidden;
            margin: 0;
            padding: 15px;
            position: relative;
        }
        
        /* عناصر متحرک در پس‌زمینه */
        .floating-elements {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            overflow: hidden;
        }
        
        .floating-element {
            position: absolute;
            border-radius: 50%;
            opacity: 0.5;
            animation-name: floating;
            animation-timing-function: ease-in-out;
            animation-iteration-count: infinite;
            animation-direction: alternate;
        }
        
        .element-1 {
            width: 80px;
            height: 80px;
            background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
            top: 15%;
            left: 10%;
            animation-duration: 8s;
        }
        
        .element-2 {
            width: 50px;
            height: 50px;
            background: linear-gradient(45deg, var(--accent-color), #ff9e9e);
            top: 70%;
            right: 15%;
            animation-duration: 6s;
            animation-delay: 1s;
        }
        
        .element-3 {
            width: 100px;
            height: 100px;
            background: linear-gradient(45deg, var(--secondary-color), #00ff95);
            bottom: 10%;
            left: 20%;
            animation-duration: 10s;
            animation-delay: 0.5s;
        }
        
        .element-4 {
            width: 60px;
            height: 60px;
            background: linear-gradient(45deg, #ffc107, #ff6b6b);
            top: 20%;
            right: 25%;
            animation-duration: 7s;
            animation-delay: 2s;
        }
        
        .element-5 {
            width: 120px;
            height: 120px;
            background: linear-gradient(45deg, #6c5ce7, #00d2ff);
            bottom: 30%;
            right: 5%;
            animation-duration: 12s;
            animation-delay: 1.5s;
        }
        
        @keyframes floating {
            0% {
                transform: translate(0, 0) rotate(0deg);
            }
            50% {
                transform: translate(20px, 20px) rotate(180deg);
            }
            100% {
                transform: translate(0, 0) rotate(360deg);
            }
        }
        
        /* دایره‌های متحرک */
        .pulse-circles {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            overflow: hidden;
        }
        
        .pulse-circle {
            position: absolute;
            border-radius: 50%;
            border: 2px solid rgba(58, 123, 213, 0.1);
            animation: pulse 6s infinite ease-in-out;
        }
        
        .circle-1 {
            width: 300px;
            height: 300px;
            top: -150px;
            right: -150px;
            animation-delay: 0s;
        }
        
        .circle-2 {
            width: 500px;
            height: 500px;
            bottom: -250px;
            left: -250px;
            animation-delay: 2s;
        }
        
        .circle-3 {
            width: 400px;
            height: 400px;
            top: 50%;
            left: -200px;
            animation-delay: 4s;
        }
        
        @keyframes pulse {
            0% {
                transform: scale(0.8);
                opacity: 0.7;
            }
            50% {
                transform: scale(1.1);
                opacity: 0.3;
            }
            100% {
                transform: scale(0.8);
                opacity: 0.7;
            }
        }
        
        /* خطوط متحرک */
        .moving-lines {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
        }
        
        .line {
            position: absolute;
            background: linear-gradient(to right, transparent, rgba(58, 123, 213, 0.2), transparent);
            height: 1px;
            animation: moveLine 15s linear infinite;
        }
        
        @keyframes moveLine {
            0% {
                transform: translateX(-100%);
            }
            100% {
                transform: translateX(100%);
            }
        }
        
        .line-1 {
            top: 20%;
            width: 100%;
            animation-duration: 20s;
        }
        
        .line-2 {
            top: 60%;
            width: 80%;
            animation-duration: 15s;
            animation-delay: 5s;
        }
        
        .line-3 {
            top: 40%;
            width: 70%;
            animation-duration: 25s;
            animation-delay: 10s;
        }
        
        /* کانتینر اصلی */
        .login-container {
            background-color: rgba(255, 255, 255, 0.95);
            border-radius: 20px;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
            overflow: hidden;
            width: 100%;
            max-width: 1000px;
            display: flex;
            flex-direction: row;
            height: 550px;
            animation: containerFadeIn 1s ease-out;
            position: relative;
        }
        
        @keyframes containerFadeIn {
            0% {
                opacity: 0;
                transform: translateY(20px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .login-left {
            flex: 1;
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        
        .login-right {
            flex: 1;
            background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('./../images/Securelogin-b140bd24.svg');
            background-size: cover;
            background-position: center;
            color: white;
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 40px;
            position: relative;
            animation: imageSlideIn 1s ease-out;
        }
        
        @keyframes imageSlideIn {
            0% {
                opacity: 0;
                transform: translateX(50px);
            }
            100% {
                opacity: 1;
                transform: translateX(0);
            }
        }
        
        .login-right::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            opacity: 0.85;
            z-index: 0;
        }
        
        .login-right-content {
            position: relative;
            z-index: 1;
            animation: contentFadeIn 1.5s ease-out;
        }
        
        @keyframes contentFadeIn {
            0% {
                opacity: 0;
                transform: translateY(20px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .brand-title {
            font-weight: 800;
            font-size: 1.5rem;
            margin-bottom: 20px;
            animation: titleAnimation 1s ease-out;
        }
        
        @keyframes titleAnimation {
            0% {
                letter-spacing: 10px;
                opacity: 0;
            }
            100% {
                letter-spacing: normal;
                opacity: 1;
            }
        }
        
        .brand-subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
            margin-bottom: 30px;
        }
        
        .features-list {
            list-style-type: none;
            padding: 0;
            margin: 0;
        }
        
        .features-list li {
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            animation: featureFadeIn 1s ease-out;
            animation-fill-mode: both;
        }
        
        .features-list li:nth-child(1) { animation-delay: 0.3s; }
        .features-list li:nth-child(2) { animation-delay: 0.6s; }
        .features-list li:nth-child(3) { animation-delay: 0.9s; }
        .features-list li:nth-child(4) { animation-delay: 1.2s; }
        
        @keyframes featureFadeIn {
            0% {
                opacity: 0;
                transform: translateX(20px);
            }
            100% {
                opacity: 1;
                transform: translateX(0);
            }
        }
        
        .feature-icon {
            background-color: rgba(255, 255, 255, 0.2);
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-left: 10px;
            transition: all 0.3s;
        }
        
        .features-list li:hover .feature-icon {
            transform: scale(1.2) rotate(15deg);
            background-color: rgba(255, 255, 255, 0.3);
        }
        
        .login-header {
            text-align: center;
            margin-bottom: 30px;
            animation: headerFadeIn 1s ease-out;
        }
        
        @keyframes headerFadeIn {
            0% {
                opacity: 0;
                transform: translateY(-20px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .login-header h2 {
            font-weight: 700;
            color: var(--dark-color);
            margin-bottom: 10px;
        }
        
        .login-header p {
            color: #777;
        }
        
        .form-group {
            margin-bottom: 20px;
            animation: formFadeIn 1s ease-out;
            animation-fill-mode: both;
        }
        
        .form-group:nth-child(1) { animation-delay: 0.2s; }
        .form-group:nth-child(2) { animation-delay: 0.4s; }
        .form-group:nth-child(3) { animation-delay: 0.6s; }
        
        @keyframes formFadeIn {
            0% {
                opacity: 0;
                transform: translateY(20px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .form-label {
            font-weight: 600;
            margin-bottom: 8px;
            color: #444;
        }
        
        .form-control {
            border-radius: 10px;
            padding: 12px 20px;
            border: 2px solid #e1e5ee;
            transition: all 0.3s;
        }
        
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.2);
            transform: translateY(-2px);
        }
        
        .input-group {
            position: relative;
        }
        
        .input-icon {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: #777;
            transition: all 0.3s;
        }
        
        .form-control:focus + .input-icon {
            color: var(--primary-color);
            transform: translateY(-50%) scale(1.2);
        }
        
        .input-with-icon {
            padding-right: 15px;
            padding-left: 45px;
        }
        
        .btn-login {
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            border: none;
            color: white;
            padding: 15px;
            border-radius: 10px;
            font-weight: 600;
            width: 100%;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            margin-top: 10px;
            position: relative;
            overflow: hidden;
            animation: btnFadeIn 1s ease-out;
            animation-delay: 0.8s;
            animation-fill-mode: both;
        }
        
        @keyframes btnFadeIn {
            0% {
                opacity: 0;
                transform: translateY(20px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .btn-login:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }
        
        .btn-login::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.3), transparent);
            transform: rotate(45deg);
            animation: btnShine 3s infinite;
        }
        
        @keyframes btnShine {
            0% {
                left: -50%;
            }
            100% {
                left: 100%;
            }
        }
        
        .additional-options {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 20px;
            font-size: 0.9rem;
            animation: optionsFadeIn 1s ease-out;
            animation-delay: 1s;
            animation-fill-mode: both;
        }
        
        @keyframes optionsFadeIn {
            0% {
                opacity: 0;
            }
            100% {
                opacity: 1;
            }
        }
        
        .form-check {
            display: flex;
            align-items: center;
        }
        
        .form-check-input {
            margin-left: 8px;
        }
        
        .forgot-password {
            color: var(--primary-color);
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .forgot-password:hover {
            color: var(--secondary-color);
            text-decoration: underline;
        }
        
        .divider {
            display: flex;
            align-items: center;
            margin: 25px 0;
            animation: dividerFadeIn 1s ease-out;
            animation-delay: 1.2s;
            animation-fill-mode: both;
        }
        
        @keyframes dividerFadeIn {
            0% {
                opacity: 0;
                width: 0;
            }
            100% {
                opacity: 1;
                width: 100%;
            }
        }
        
        .divider::before,
        .divider::after {
            content: "";
            flex: 1;
            border-bottom: 1px solid #ddd;
        }
        
        .divider span {
            padding: 0 15px;
            color: #777;
            font-size: 14px;
        }
        
        .alternative-login {
            text-align: center;
            animation: altLoginFadeIn 1s ease-out;
            animation-delay: 1.4s;
            animation-fill-mode: both;
        }
        
        @keyframes altLoginFadeIn {
            0% {
                opacity: 0;
                transform: translateY(20px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .alternative-text {
            margin-bottom: 15px;
            color: #777;
        }
        
        .chat-login {
            display: inline-flex;
            align-items: center;
            padding: 10px 20px;
            background-color: #f8f9fa;
            border-radius: 20px;
            text-decoration: none;
            color: #444;
            font-weight: 500;
            transition: all 0.3s;
        }
        
        .chat-login:hover {
            background-color: #e9ecef;
            transform: translateY(-2px);
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        }
        
        .chat-icon {
            margin-right: 8px;
            color: var(--primary-color);
        }
        
        .register-link {
            text-align: center;
            margin-top: 20px;
            color: #777;
            animation: registerFadeIn 1s ease-out;
            animation-delay: 1.6s;
            animation-fill-mode: both;
        }
        
        @keyframes registerFadeIn {
            0% {
                opacity: 0;
            }
            100% {
                opacity: 1;
            }
        }
        
        .register-link a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .register-link a:hover {
            color: var(--secondary-color);
            text-decoration: underline;
        }
        
        @media (max-width: 768px) {
            .login-container {
                flex-direction: column;
                height: auto;
            }
            
            .login-right {
                display: none;
            }
            
            .login-left {
                padding: 30px;
            }
            
            .floating-elements,
            .pulse-circles,
            .moving-lines {
                display: none;
            }
        }