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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #1e3a8a 0%, #7dd3fc 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .login-container {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            overflow: hidden;
            width: 100%;
            max-width: 1000px;
            min-height: 600px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            animation: slideUp 0.8s ease-out;
        }

        .login-image {
            background: linear-gradient(135deg, rgba(30, 58, 138, 0.9), rgba(125, 211, 252, 0.7)),
                        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 600"><rect fill="%23f8f9fa" width="1000" height="600"/><g fill="%23e9ecef"><circle cx="200" cy="150" r="80"/><circle cx="800" cy="400" r="120"/><rect x="400" y="250" width="200" height="100" rx="10"/></g></svg>');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        .login-image::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 400 300"><rect fill="%23ffffff" opacity="0.1" width="400" height="300"/><g stroke="%23ffffff" stroke-width="1" opacity="0.2" fill="none"><path d="M50 50h100v50H50z"/><path d="M200 100h100v50H200z"/><circle cx="150" cy="200" r="30"/></g></svg>');
            animation: float 6s ease-in-out infinite;
        }

        .business-illustration {
            color: white;
            text-align: center;
            z-index: 2;
            padding: 40px;
        }

        .business-illustration h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }

        .business-illustration p {
            font-size: 1.2rem;
            opacity: 0.9;
            line-height: 1.6;
        }

        .login-form {
            padding: 60px 50px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            background: white;
        }

        .logo-section {
            text-align: center;
            margin-bottom: 40px;
        }

        .logo {
            font-size: 2.5rem;
            font-weight: 700;
            color: #1e3a8a;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 15px;
            position: relative;
        }

        .logo::before {
            content: '';
            width: 40px;
            height: 40px;
            background: linear-gradient(45deg, #7dd3fc 0%, #1e3a8a 50%, #7dd3fc 100%);
            transform: rotate(45deg);
            display: inline-block;
            border-radius: 4px;
            position: relative;
        }

        .logo::after {
            content: '';
            position: absolute;
            left: 8px;
            width: 24px;
            height: 24px;
            background: #1e3a8a;
            transform: rotate(45deg);
            border-radius: 2px;
        }

        .subtitle {
            color: #666;
            font-size: 1rem;
            margin-bottom: 30px;
        }

        .form-group {
            margin-bottom: 25px;
            position: relative;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #333;
            font-weight: 500;
            font-size: 0.95rem;
        }

        .form-group input {
            width: 100%;
            padding: 15px 20px;
            border: 2px solid #e1e5e9;
            border-radius: 12px;
            font-size: 1rem;
            transition: all 0.3s ease;
            background: #f8f9fa;
        }

        .form-group input:focus {
            outline: none;
            border-color: #1e3a8a;
            background: white;
            box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
        }

        .form-group input::placeholder {
            color: #adb5bd;
        }

        .checkbox-group {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 30px;
        }

        .checkbox-group input[type="checkbox"] {
            width: auto;
            margin: 0;
            transform: scale(1.2);
            accent-color: #1e3a8a;
        }

        .checkbox-group label {
            margin: 0;
            color: #666;
            font-size: 0.9rem;
            cursor: pointer;
        }

        .login-button {
            background: linear-gradient(135deg, #1e3a8a, #7dd3fc);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .login-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(30, 58, 138, 0.3);
            background: linear-gradient(135deg, #1e40af, #38bdf8);
        }

        .login-button:active {
            transform: translateY(0);
        }

        .forgot-password {
            text-align: center;
            margin-top: 20px;
        }

        .forgot-password a {
            color: #1e3a8a;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.3s ease;
        }

        .forgot-password a:hover {
            color: #7dd3fc;
            text-decoration: underline;
        }

        /* Animaciones */
        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

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

        /* Responsive Design */
        @media (max-width: 768px) {
            .login-container {
                grid-template-columns: 1fr;
                max-width: 400px;
                min-height: auto;
            }

            .login-image {
                min-height: 200px;
                padding: 30px 20px;
            }

            .business-illustration h2 {
                font-size: 1.8rem;
            }

            .business-illustration p {
                font-size: 1rem;
            }

            .login-form {
                padding: 40px 30px;
            }

            .logo {
                font-size: 2rem;
            }
        }

        @media (max-width: 480px) {
            body {
                padding: 10px;
            }

            .login-container {
                border-radius: 15px;
            }

            .login-form {
                padding: 30px 20px;
            }

            .logo {
                font-size: 1.8rem;
            }

            .business-illustration h2 {
                font-size: 1.5rem;
            }
        }

        /* Estados de validación */
        .form-group.error input {
            border-color: #dc3545;
            background: #fff5f5;
        }

        .form-group.success input {
            border-color: #28a745;
            background: #f8fff8;
        }

        .error-message {
            color: #dc3545;
            font-size: 0.8rem;
            margin-top: 5px;
            display: none;
        }

        .form-group.error .error-message {
            display: block;
        }

        /* Loading state */
        .login-button.loading {
            position: relative;
            color: transparent;
        }

        .login-button.loading::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 20px;
            height: 20px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-radius: 50%;
            border-top-color: white;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            to {
                transform: translate(-50%, -50%) rotate(360deg);
            }
        }