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

        body {
            font-family: 'Inter', sans-serif;
            min-height: 100vh;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            cursor: default;
        }

        /* Efecto de ondas tipo agua más suaves */
        .water-ripple {
            position: fixed;
            background: radial-gradient(
                circle,
                rgba(59, 130, 246, 0.4) 0%,
                rgba(59, 130, 246, 0.3) 20%,
                rgba(59, 130, 246, 0.2) 40%,
                rgba(59, 130, 246, 0.1) 60%,
                rgba(59, 130, 246, 0.05) 80%,
                transparent 100%
            );
            border-radius: 50%;
            pointer-events: none;
            z-index: 9999;
            filter: blur(1px);
            animation: water-expand-smooth 2s ease-out forwards;
        }

        @keyframes water-expand-smooth {
            0% {
                width: 0px;
                height: 0px;
                opacity: 1;
                filter: blur(0px);
                transform: scale(1);
            }
            15% {
                opacity: 0.9;
                filter: blur(0.5px);
                transform: scale(1.02);
            }
            30% {
                opacity: 0.7;
                filter: blur(1px);
                transform: scale(0.98);
            }
            60% {
                opacity: 0.4;
                filter: blur(1.5px);
                transform: scale(1.01);
            }
            100% {
                width: 120px;
                height: 120px;
                opacity: 0;
                filter: blur(3px);
                transform: scale(1);
            }
        }

        .trail-particle {
            position: fixed;
            width: 8px;
            height: 8px;
            background: radial-gradient(
                circle,
                rgba(59, 130, 246, 0.8) 0%,
                rgba(59, 130, 246, 0.4) 50%,
                transparent 100%
            );
            border-radius: 50%;
            pointer-events: none;
            z-index: 9998;
            opacity: 0;
            filter: blur(0.5px);
            transition: all 0.3s ease;
        }

        /* Animated background */
        body::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 1000 1000"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(59,130,246,0.1)"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grain)"/></svg>');
            animation: float 20s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            50% { transform: translateY(-20px) rotate(1deg); }
        }

        .login-container {
            position: relative;
            z-index: 1;
            background: rgba(15, 23, 42, 0.9);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(59, 130, 246, 0.2);
            border-radius: 24px;
            box-shadow: 
                0 40px 100px rgba(0, 0, 0, 0.3),
                0 0 50px rgba(59, 130, 246, 0.1),
                inset 0 1px 0 rgba(59, 130, 246, 0.1);
            overflow: hidden;
            max-width: 1000px;
            width: 90%;
            min-height: 600px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            animation: slideUp 0.8s ease-out;
        }

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

        .login-visual {
            background: linear-gradient(135deg, #1e40af 0%, #3b82f6 50%, #60a5fa 100%);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 60px 40px;
            position: relative;
            overflow: hidden;
        }

        .login-visual::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
            animation: rotate 30s linear infinite;
        }

        @keyframes rotate {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        .logo {
            width: 250px;
            height: 250px;
            background: rgba(255, 255, 255, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 30px;
            position: relative;
            z-index: 2;
            border: 3px solid rgba(255, 255, 255, 0.2);
            transition: all 0.3s ease;
            box-shadow: 0 0 30px rgba(59, 130, 246, 0.3);
            overflow: hidden;
        }

        .logo:hover {
            transform: scale(1.05);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2), 0 0 50px rgba(59, 130, 246, 0.5);
        }

        .logo img {
            max-width: 80%;
            max-height: 80%;
            object-fit: contain;
            filter: drop-shadow(0 0 20px rgba(59, 130, 246, 0.8));
        }

        .visual-text {
            position: relative;
            z-index: 2;
        }

        .visual-text h2 {
            color: white;
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.2;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        }

        .visual-text p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 18px;
            line-height: 1.6;
            max-width: 280px;
            text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
        }

        .login-form {
            padding: 60px 50px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            background: rgba(15, 23, 42, 0.95);
        }

        .form-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .form-header h1 {
            color: #e2e8f0;
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 8px;
            text-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
        }

        .form-header p {
            color: #94a3b8;
            font-size: 16px;
        }

        .form-group {
            margin-bottom: 24px;
            position: relative;
        }

        .form-group label {
            display: block;
            color: #cbd5e1;
            font-weight: 500;
            margin-bottom: 8px;
            font-size: 14px;
        }

        .input-wrapper {
            position: relative;
        }

        .input-wrapper i {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: #64748b;
            font-size: 18px;
            transition: color 0.3s ease;
        }

        .form-input {
            width: 100%;
            padding: 16px 16px 16px 50px;
            border: 2px solid rgba(59, 130, 246, 0.2);
            border-radius: 12px;
            font-size: 16px;
            transition: all 0.3s ease;
            background: rgba(30, 41, 59, 0.8);
            color: #e2e8f0;
            backdrop-filter: blur(10px);
        }

        .form-input::placeholder {
            color: #64748b;
        }

        .form-input:focus {
            outline: none;
            border-color: #3b82f6;
            background: rgba(30, 41, 59, 0.9);
            box-shadow: 
                0 0 0 3px rgba(59, 130, 246, 0.1),
                0 0 20px rgba(59, 130, 246, 0.2);
        }

        .form-input:focus + i {
            color: #3b82f6;
        }

        .checkbox-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }

        .checkbox-group {
            display: flex;
            align-items: center;
        }

        .custom-checkbox {
            position: relative;
            display: inline-block;
            margin-right: 12px;
        }

        .custom-checkbox input {
            opacity: 0;
            position: absolute;
        }

        .custom-checkbox .checkmark {
            height: 20px;
            width: 20px;
            background: rgba(30, 41, 59, 0.8);
            border: 2px solid rgba(59, 130, 246, 0.3);
            border-radius: 4px;
            position: relative;
            transition: all 0.3s ease;
        }

        .custom-checkbox input:checked ~ .checkmark {
            background: #3b82f6;
            border-color: #3b82f6;
            box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
        }

        .custom-checkbox .checkmark:after {
            content: "";
            position: absolute;
            display: none;
            left: 6px;
            top: 2px;
            width: 5px;
            height: 10px;
            border: solid white;
            border-width: 0 2px 2px 0;
            transform: rotate(45deg);
        }

        .custom-checkbox input:checked ~ .checkmark:after {
            display: block;
        }

        .checkbox-label {
            color: #cbd5e1;
            font-size: 14px;
            cursor: pointer;
        }

        .forgot-link {
            color: #60a5fa;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .forgot-link:hover {
            color: #93c5fd;
            text-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
        }

        .login-button {
            width: 100%;
            padding: 16px;
            background: linear-gradient(135deg, #1e40af 0%, #3b82f6 50%, #60a5fa 100%);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            margin-bottom: 24px;
            box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
        }

        .login-button:hover {
            transform: translateY(-2px);
            box-shadow: 
                0 10px 25px rgba(59, 130, 246, 0.4),
                0 0 30px rgba(59, 130, 246, 0.3);
        }

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

        .login-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s ease;
        }

        .login-button:hover::before {
            left: 100%;
        }

        .signup-link {
            text-align: center;
            color: #94a3b8;
            font-size: 14px;
        }

        .signup-link a {
            color: #60a5fa;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .signup-link a:hover {
            color: #93c5fd;
            text-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
        }

        .floating-elements {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 0;
        }

        .floating-element {
            position: absolute;
            background: rgba(59, 130, 246, 0.1);
            border-radius: 50%;
            animation: float-random 15s infinite linear;
            box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
        }

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

        .floating-element:nth-child(2) {
            width: 60px;
            height: 60px;
            top: 60%;
            right: 15%;
            animation-delay: 5s;
        }

        .floating-element:nth-child(3) {
            width: 40px;
            height: 40px;
            bottom: 30%;
            left: 20%;
            animation-delay: 10s;
        }

        @keyframes float-random {
            0%, 100% {
                transform: translateY(0px) translateX(0px) rotate(0deg);
            }
            25% {
                transform: translateY(-20px) translateX(10px) rotate(90deg);
            }
            50% {
                transform: translateY(-40px) translateX(-10px) rotate(180deg);
            }
            75% {
                transform: translateY(-20px) translateX(15px) rotate(270deg);
            }
        }

        /* Efecto de pulso en elementos interactivos */
        .interactive-glow {
            position: relative;
        }

        .interactive-glow::before {
            content: '';
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            background: linear-gradient(45deg, transparent, rgba(59, 130, 246, 0.3), transparent);
            border-radius: inherit;
            opacity: 0;
            z-index: -1;
            transition: opacity 0.3s ease;
        }

        .interactive-glow:hover::before {
            opacity: 1;
        }

        @media (max-width: 768px) {
            .login-container {
                grid-template-columns: 1fr;
                margin: 20px;
                min-height: auto;
            }

            .login-visual {
                display: none;
            }

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

            .form-header h1 {
                font-size: 24px;
            }

            .visual-text h2 {
                font-size: 24px;
            }
        }

        @media (max-width: 480px) {
            .login-form {
                padding: 30px 20px;
            }

            .login-container {
                margin: 10px;
            }
        }