* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            background: linear-gradient(135deg, #c31432 0%, #240b36 100%);
            padding: 20px;
            overflow: hidden;
        }

        .login-container {
            position: relative;
            width: 100%;
            max-width: 450px;
            z-index: 2;
        }

        .login-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(15px);
            border-radius: 20px;
            padding: 40px 35px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.2);
            position: relative;
            overflow: hidden;
        }

        .login-card::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
            transform: rotate(45deg);
            animation: shine 8s infinite linear;
            z-index: -1;
        }

        @keyframes shine {
            0% {
                transform: rotate(45deg) translateX(-100%);
            }
            100% {
                transform: rotate(45deg) translateX(100%);
            }
        }

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

        .login-header h1 {
            color: white;
            font-size: 2.5rem;
            margin-bottom: 10px;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        }

        .login-header p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1rem;
        }

        .input-group {
            position: relative;
            margin-bottom: 30px;
        }

        .input-group input {
            width: 100%;
            padding: 15px 20px 15px 50px;
            background: rgba(255, 255, 255, 0.1);
            border: 2px solid rgba(255, 255, 255, 0.2);
            border-radius: 50px;
            color: white;
            font-size: 1rem;
            outline: none;
            transition: all 0.3s ease;
        }

        .input-group input:focus {
            border-color: rgba(255, 255, 255, 0.5);
            background: rgba(255, 255, 255, 0.2);
            box-shadow: 0 0 15px rgba(255, 59, 59, 0.4);
        }

        .input-group input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .input-group i {
            position: absolute;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.2rem;
            transition: all 0.3s ease;
        }

        .input-group input:focus + i {
            color: #ff6b6b;
            text-shadow: 0 0 10px rgba(255, 107, 107, 0.5);
        }

        .options {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
            font-size: 0.9rem;
        }

        .remember-me {
            display: flex;
            align-items: center;
            color: rgba(255, 255, 255, 0.8);
        }

        .remember-me input {
            margin-right: 8px;
            accent-color: #ff6b6b;
        }

        .forgot-password {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .forgot-password:hover {
            color: #ff6b6b;
            text-shadow: 0 0 10px rgba(255, 107, 107, 0.5);
        }

        .login-button {
            width: 100%;
            padding: 15px;
            background: linear-gradient(135deg, #ff6b6b, #c31432);
            border: none;
            border-radius: 50px;
            color: white;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(195, 20, 50, 0.4);
            position: relative;
            overflow: hidden;
        }

        .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: 0.5s;
        }

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

        .login-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(195, 20, 50, 0.6);
        }

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

        .register-link {
            text-align: center;
            margin-top: 30px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.9rem;
        }

        .register-link a {
            color: #ff6b6b;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .register-link a:hover {
            text-shadow: 0 0 10px rgba(255, 107, 107, 0.5);
        }

        .social-login {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-top: 30px;
        }

        .social-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.1);
            color: white;
            font-size: 1.2rem;
            transition: all 0.3s ease;
            border: 2px solid rgba(255, 255, 255, 0.2);
        }

        .social-btn:hover {
            transform: translateY(-5px);
            background: #ff6b6b;
            box-shadow: 0 5px 15px rgba(195, 20, 50, 0.4);
        }

        .floating-shapes {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
            overflow: hidden;
        }

        .shape {
            position: absolute;
            border-radius: 50%;
            background: rgba(255, 107, 107, 0.2);
            animation: float 15s infinite linear;
        }

        .shape-1 {
            width: 80px;
            height: 80px;
            top: 10%;
            left: 10%;
            animation-delay: 0s;
        }

        .shape-2 {
            width: 120px;
            height: 120px;
            top: 70%;
            left: 80%;
            animation-delay: 2s;
        }

        .shape-3 {
            width: 60px;
            height: 60px;
            top: 20%;
            left: 85%;
            animation-delay: 4s;
        }

        .shape-4 {
            width: 100px;
            height: 100px;
            top: 80%;
            left: 15%;
            animation-delay: 6s;
        }

        .shape-5 {
            width: 90px;
            height: 90px;
            top: 60%;
            left: 5%;
            animation-delay: 8s;
        }

        @keyframes float {
            0% {
                transform: translateY(0) rotate(0deg);
                opacity: 0.3;
            }
            50% {
                transform: translateY(-20px) rotate(180deg);
                opacity: 0.6;
            }
            100% {
                transform: translateY(0) rotate(360deg);
                opacity: 0.3;
            }
        }

        .particles {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
        }

        .particle {
            position: absolute;
            background: rgba(255, 107, 107, 0.5);
            border-radius: 50%;
            animation: fall linear infinite;
        }

        @keyframes fall {
            to {
                transform: translateY(100vh);
            }
        }

        /* Responsive */
        @media (max-width: 480px) {
            .login-card {
                padding: 30px 25px;
            }
            
            .login-header h1 {
                font-size: 2rem;
            }
            
            .options {
                flex-direction: column;
                gap: 15px;
                align-items: flex-start;
            }
        }

        /* Efectos adicionales */
        .pulse {
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(255, 107, 107, 0.7);
            }
            70% {
                box-shadow: 0 0 0 10px rgba(255, 107, 107, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(255, 107, 107, 0);
            }
        }

        .glow {
            text-shadow: 0 0 10px rgba(255, 107, 107, 0.7);
        }